Academic literature on the topic 'HISTORY / Canada / General'
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Journal articles on the topic "HISTORY / Canada / General"
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Akram, Nadeem. "History of Islamophobia in Canada." Global Mass Communication Review VI, no. IV (December 30, 2021): 22–34. http://dx.doi.org/10.31703/gmcr.2021(vi-iv).03.
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Canada is generally considered the most liberal andleast racist country in the Western hemisphere at least according tothe popular discourse. The ground reality is slightly more complex.According to the Canadian Center for Policy Alternatives, moreMuslims have been killed in hate crimes in Canada in the last fiveyears than in any other G-7 country. The anti-terror legislation after9/11 further caused systematic islamophobia. This research paperstudies the historical evolution of Islamophobia and anti-Muslimdiscourse in Canada. The objective is to understand the literary andmedia sources of the growing anti-Muslim hate crimes
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Weir, Bryce. "A History of Neurosurgery in Canada." Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques 38, no. 2 (March 2011): 203–19. http://dx.doi.org/10.1017/s0317167100011355.
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Canada existed for more than half a century before there were glimmerings of modern neurosurgical activity. Neurosurgery had advanced significantly in Europe and the United States prior to its being brought to Toronto and Montreal from American centers. The pioneers responsible for the rapid evolution in practice, teaching and research are described. The interplay of scientific, professional, demographic and economic forces with general historical trends has produced dramatic changes in the way that neurosurgery is now practiced.
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Williams, M. R. "History of Computers in Canada." IEEE Annals of the History of Computing 7, no. 1 (1985): 63–65. http://dx.doi.org/10.1109/mahc.1985.10002.
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Mathien, Thomas. "The Natural History of Philosophy in Canada." Dialogue 25, no. 1 (1986): 53–66. http://dx.doi.org/10.1017/s0012217300042864.
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Some writers about the history of philosophy in Canada have wondered why it should be studied. That is a worthy question, but it is not the one I want to discuss here. I am going to assume there are good reasons for doing so because I want to consider some general features of the subject of such studies and to determine what has to be done to establish certain descriptive claims about it. I will also point out some concerns I have about the proper explanation of certain interesting features of Canadian philosophic activity, and I will present a brief evaluation of one major study. I will do this with the aid of a contention that the study of the history of an intellectual discipline is a little like an evolutionary study of a biological species, but I will close by pointing out one reason for doing history which goes beyond description, and even explanation, of the past.
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MacKenzie, David. "Air Canada: The History by Peter Pigott." Ontario History 106, no. 2 (2014): 273. http://dx.doi.org/10.7202/1050700ar.
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Coates, C. "General Sir Guy Carleton, Lord Dorchester: Soldier-Statesman of Early British Canada." English Historical Review 118, no. 475 (February 1, 2003): 230. http://dx.doi.org/10.1093/ehr/118.475.230.
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Mott, Robert J. "Sangamonian Forest History and Climate in Atlantic Canada." Articles 44, no. 3 (December 18, 2007): 257–70. http://dx.doi.org/10.7202/032828ar.
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ABSTRACT Seven of the more than twenty five buried organic deposits in Atlantic Canada assigned to pre-Wisconsinan non-glacial intervals possibly relate to the climatic optimum of the Sangamon Interglaciation, that is substage 5e of the deep-sea oxygen isotope record. These sites are East Bay and Green Point on Cape Breton Island. Addington Forks and East Milford in mainland Nova Scotia. Le Bassin and Portage-du-Cap on the Iles de la Madeleine, Québec, and Woody Cove, Newfoundland. Except for Woody Cove, none of the sites records a complete climatic cycle, and the sequence of events must be pieced together from their disparate records. The spectra, characterized by significant amounts of thermophilous taxa that are not as abundant or present in the region today, are similar in general to Holocene spectra at sites immediately south of the lower Great Lakes. Comparison of the fossil spectra from five sites with modern surface spectra from eastern North America yields modern analogs which, if valid, indicate that the climate in Atlantic Canada during the climatic optimum of the last interglacial interval was more continental in character and considerably warmer than present.
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Wright, Peter M. "Building Canada: a history of public works." Canadian Journal of Civil Engineering 17, no. 5 (October 1, 1990): 871–72. http://dx.doi.org/10.1139/l90-099.
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Spiwak, Rae, Brenda Elias, James M. Bolton, Patricia J. Martens, and Jitender Sareen. "Suicide Policy in Canada: Lessons From History." Canadian Journal of Public Health 103, no. 5 (September 2012): e338-e341. http://dx.doi.org/10.1007/bf03404437.
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Fulton, Rachel. "Canada Science and Technology Museum, Ottawa, Canada." Medical History 57, no. 1 (January 2013): 161–63. http://dx.doi.org/10.1017/mdh.2012.87.
Full textDissertations / Theses on the topic "HISTORY / Canada / General"
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McCulloch, Michael E. "English-speaking liberals in Canada east, 1840-1854." Thesis, University of Ottawa (Canada), 1986. http://hdl.handle.net/10393/4987.
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McLaren, Kristin. ""African barbarism" and "Anglo-Saxon civilization": The mythic foundations of school segregation and African-Canadian resistance in Canada West." Thesis, University of Ottawa (Canada), 2005. http://hdl.handle.net/10393/29237.
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The legend of the Underground Railroad and the ideal of Canada as a promised land for African-American fugitive slaves have been pervasive in the Canadian imagination. In the mid-nineteenth century, myths describing British Canada West as a moral exemplar and guarantor of equal rights to all provided a sense of transcendent meaning and orientation to citizens of British and African heritage.
British-Canadian school promoters hoped to lay the foundations of an ideal British society in the emerging public school system. The main proponent of this system, Egerton Ryerson, boasted of the merits of a Christian and moral education provided to all Canadians without discrimination. However, African Canadians were largely excluded from public education in Canada West, or forced into segregation, a practice that was against the spirit of egalitarian British laws.
British-Canadian mythologies that called for the protection of Anglo-Saxon racial purity allowed for the introduction of this practice of school segregation. In response, many African-Canadian leaders called upon Canadian society to live up to its egalitarian ideals and promoted integration. This work examines dominant discourses that presented the British-Canadian people as a culturally pure group, unchanged by their historical environment, and contrasts these mythologies with African-Canadian mythologies that reflected the culturally diverse nature of Canadian society and emphasized the potential for human transformation in mid-nineteenth century Canada West.
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Beanlands, D. Bruce. "The development of the Lieutenant Governor's Warrant in Canada, 1841-1988 a history and a critique." Thesis, University of Ottawa (Canada), 1988. http://hdl.handle.net/10393/5488.
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Prévost, Michel. "La belle époque de Caledonia Springs : gloire et déclin de la plus importante ville d'eaux du Canada (1835-1915)." Thesis, University of Ottawa (Canada), 1985. http://hdl.handle.net/10393/4853.
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Shannon, Bill. "Brokers, land bankers, and birds of evil omen the effect of land policies on settlement in Upper Canada, Collingwood township, 1834-1860." Thesis, University of Ottawa (Canada), 1989. http://hdl.handle.net/10393/5621.
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Bryant, Andrew M. ""Yesterday, today, and forever": The mythic foundations of the Ku Klux Klan in the United States and Canada." Thesis, University of Ottawa (Canada), 2004. http://hdl.handle.net/10393/26592.
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The Ku Klux Klan has been active in North America for 139 years and organizations like the Klan have existed in North America since before the United States and Canada became independent nations. The white supremacy advocated by the Klan mimics the justifications used by colonial powers, and though the United States and Canada have espoused egalitarian ideals for quite some time, the Klan continues to attract members.
Mircea Eliade and Claude Levi-Strauss have argued that history and myth share many characteristics, and that sometimes history can act as myth. Understanding how North American history can be a mythic model for the religious formation of North American people one can better explain the long-term viability of the Klan and its ability not only to inspire violence, but to articulate a particular kind of white North American identity. This study examines how the religiosity and action of the Klan has been informed by mytho-historical influences in the United States and Canada and, consequently, how these influences affect other people formed in this context.
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Torrie, Virginia Erica. "Protagonists of company reorganisation : a history of the Companies' Creditors Arrangement Act (Canada) and the role of large secured creditors." Thesis, University of Kent, 2015. https://kar.kent.ac.uk/54477/.
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In 1933 Canada enacted the Companies’ Creditors Arrangement Act with little consultation. Parliament described the CCAA as federal ‘bankruptcy and insolvency law’ but the Act provoked constitutional controversy because it could compulsorily bind secured claims, which fell under provincial jurisdiction. Even after the Supreme Court of Canada upheld the CCAA, the intended beneficiaries of the Act preferred not to use it. In the 1950s the Act fell out of use, and by the 1970s commentators considered it a ‘dead letter.’ But during the 1980s and 1990s recessions, courts ‘revived’ the CCAA through progressive interpretations of its few ‘enabling’ provisions. This helped justify debtor-in-possession reorganisation as a policy objective of Canadian bankruptcy and insolvency law. This thesis attempts to understand why this occurred. This study provides a theorised interpretation of CCAA history. I rely on concepts such as path dependence, interest groups and institutions to shed light on periods of stability and change in CCAA law over time. I bolster this with a socio-legal analysis that takes account of gradual changes in practice that often preceded and gave shape to formal reforms. This thesis shows that large secured creditors have been major drivers and beneficiaries of CCAA law. The Act originally extended provincial receivership reorganisations into federal law. In the 1980s-1990s courts facilitated ongoing access to the CCAA by recasting it as a debtor-remedy. In both instances the solvency of large secureds (financial institutions) highlighted the necessity of restructuring corporate borrowers, and prevailing social, economic, and political factors influenced the substance and mechanisms of legal changes. Despite its public stature as a ‘debtor-remedy,’ CCAA law continues to advance the interests of large secured creditors.
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Willan, Pierre. "La politique fédérale de logement au Canada de la Seconde Guerre mondiale au tournant du siècle: Reflet de l'évolution du rôle de l'État dans la solidarité sociale." Thesis, University of Ottawa (Canada), 2007. http://hdl.handle.net/10393/27933.
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La thèse porte sur l'évolution des politiques fédérales de logement de la période d'après-guerre au tournant des années deux milles et démontre en quoi elle concorde avec les trois grandes périodes ayant marquées l'évolution des politiques sociales canadiennes. La première est marquée par une expansion de l'intervention étatique correspondant à l'essor de l'État providence. La seconde est caractérisée par un désengagement de l'intervention étatique sous l'influence des idéaux néolibéraux. La troisième est marquée par une nouvelle forme d'intervention correspondant au modèle partenarial de l'intervention étatique.
En conclusion, la thèse établit que l'évolution de la politique de logement répond aux meme facteurs déterminants que l'évolution des autres politiques sociales: une nouvelle politique est engendrée par un changement structurel majeur qui suscite une réaction du gouvernement conditionnée par un paradigme dominant sur l'interventionnisme et la décentralisation, et ensuite par d'autres facteurs tels que le poids du passé et les relations intergouvernementales.
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Johnson, Alexander James Cook. "Charting the imperial will : colonial administration & the General Survey of British North America, 1764-1775." Thesis, University of Exeter, 2011. http://hdl.handle.net/10036/3458.
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This dissertation explores how colonial administrators on each side of the Atlantic used the British Survey of North America to serve their governments’ as well as their personal objectives. Specifically, it connects the execution and oversight of the General Survey in the northern and southern theatres, along with the intelligence it provided, with the actions of key decision-makers and influencers, including the Presidents of the Board of Trade (latterly, the Secretaries of the American Department) and key provincial governors. Having abandoned their posture of ‘Salutary Neglect’ towards colonial affairs in favour of one that proactively and more centrally sought ways to develop and exploit their North American assets following the Severn Years’ War, the British needed better geographic information to guide their decision making. Thus, the General Survey of British North America, under the umbrella of the Board of Trade, was conceived. Officially sponsored from 1764-1775, the programme aimed to survey and analyse the attributes and economic potential of Britain’s newly acquired regions in North America, leading to an accurate general map of their North American empire when joined to other regional mapping programmes. The onset of the American Revolution brought an inevitable end to the General Survey before a connected map could be completed. Under the excellent leadership of Samuel Holland, the surveyor general of the Northern District, however, the British administration received surveys and reports that were of great relevance to high-level administration. In the Southern District, Holland’s counterpart, the mercurial William Gerard De Brahm, while producing reports of high quality, was less able to juggle the often conflicting priorities of provincial and London-based stakeholders. Consequently, results were less successful. De Brahm was recalled in 1771, leaving others to complete the work.
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Lockwood, Glenn J. "Eastern Upper Canadian perceptions of Irish immigrants, 1824-1868." Thesis, University of Ottawa (Canada), 1988. http://hdl.handle.net/10393/5087.
Full textBooks on the topic "HISTORY / Canada / General"
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1947-, Turgeon Pierre, ed. Canada: A people's history. Toronto, Ont: McClelland & Stewart, 2000.
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Achille, Michaud, Turgeon Pierre 1947-, and Canadian Broadcasting Corporation, eds. Canada: A people's history. Toronto: M&S, 2002.
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1958-, Hackett Christopher, Canada Canadian Heritage, and Chinook Multimedia (Firm), eds. Canada, Confederation to present: An interactive history of Canada. [Edmonton]: Chinook Mutimedia, 2001.
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A, Livingston John, and Royal Canadian Geographical Society, eds. Canada: A natural history. Markham, Ont., Canada: Viking Studio Books, 1988.
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Canada General Service Medal roll, 1866-70. [Winnipeg: Bunker to Bunker Books, 1998.
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Canadian General Hospital No. 7 (Queen's). A history of No. 7 (Queen's) Canadian General Hospital, March 26, 1915-Nov. 15, 1917. [S.l: s.n., 1997.
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1945-, Hall Roger, Westfall William 1945-, and MacDowell Laurel Sefton 1947-, eds. Patterns of the Past: Interpreting Ontario's History. Toronto: Dundurn Press, 1988.
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The writing of Canadian history: Aspects of English-Canadian historical writing since 1900. 2nd ed. Toronto: University of Toronto Press, 1986.
Find full textBook chapters on the topic "HISTORY / Canada / General"
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Naujoks, Daniel. "Diaspora Policies, Consular Services and Social Protection for Indian Citizens Abroad." In IMISCOE Research Series, 163–81. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-51237-8_9.
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AbstractAs the country with the world’s largest emigrant population and a long history of international mobility, India has adopted a multi-faceted institutional and policy framework to govern migration and diaspora engagement. This chapter provides a broad overview of initiatives on social protection for Indians abroad, shedding light on specific policy designs to include and exclude different populations in India and abroad. In addition to programmes by the national government, the chapter discusses initiatives at the sub-national level. The chapter shows that India has established a set of policies for various diaspora populations that are largely separate from the rules and policies adopted for nationals at home. Diaspora engagement policies, and especially policies aimed at fostering social protection of Indians abroad, are generally not integrated into national social protection policies. There is a clear distinction between policies that are geared towards the engagement of ethnic Indian populations whose forefathers have left Indian shores many generations ago, Indian communities in OECD countries – mostly US, Canada, Europe and Australia – and migrant workers going on temporary assignments to countries in the Persian Gulf. The chapter offers a discussion of the key differences, drivers, and limitations of existing policies.
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"Edwards v Attorney General of Canada (1929)." In Women’s Legal Landmarks : Celebrating the History of Women and Law in the UK and Ireland. Hart Publishing, 2019. http://dx.doi.org/10.5040/9781782259800.ch-029.
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Dyzenhaus, David, and Mayo Moran. "Mack v. Attorney General of Canada: Equality, History, and Reparation." In Calling Power to Account, edited by David Dyzenhaus and Mayo Moran. Toronto: University of Toronto Press, 2005. http://dx.doi.org/10.3138/9781442671669-003.
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Campbell, Colin, and Robert Raizenne. "Countering Tax Avoidance in Canada before the General Anti-Avoidance Rule." In Studies in the History of Tax Law. Hart Publishing, 2021. http://dx.doi.org/10.5040/9781509939909.ch-013.
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Colden, Cadwallader. "The Conduct which the English and French observed, in regard to the Five Nations, immediately after the Peace of Reswick." In The History of the Five Indian Nations Depending on the Province of New-York in America. Cornell University Press, 2017. http://dx.doi.org/10.7591/cornell/9781501713903.003.0019.
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This chapter details events following the Peace of Reswick. After the news of the Peace of Reswick reached New-York, the governor sent an express to Canada, informing the governor there of it, that hostilities might cease. The Five Nations, having an account of the peace earlier than they had it in Canada, took advantage of it, in hunting beaver near Cadarackui Fort. The Governor of Canada, however, being informed of this, and believing that the Five Nations thought themselves secure by the general Peace, resolved to take his last revenge by sending a considerable party of Adirondacks to surprise them, which they did, and killed several, but not without loss of many of their own men.
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Colden, Cadwallader. "An Account of a general Council of the Five Nations at Onondaga, to consider the Count De Frontenac’s Message." In The History of the Five Indian Nations Depending on the Province of New-York in America. Cornell University Press, 2017. http://dx.doi.org/10.7591/cornell/9781501713903.003.0009.
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On the 27th of December 1689, two Indians came to Albany, sent by the Onondaga and Oneydo Sachems, to inform their brethren in New York and New-England that three of their old friends who had been prisoners of France, had arrived with proposals from Canada; that there was a council of the Sachems appointed to meet at Onondaga, and that they desired the Mayor of Albany, Peter Scheyler, and some others of their brethren to attend and to advise on an affair of great consequence. This chapter describes the general council opened at Onondaga on the 22nd of January, consisting of eighty Sachems.
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Broom, Catherine A. "Citizenship and Social Studies Curricula in British Columbia, Canada." In Handbook of Research on Citizenship and Heritage Education, 56–79. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-1978-3.ch004.
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This chapter begins by reviewing the history of citizenship education in social studies curricula in British Columbia (BC), Canada, as a way of framing how the topic has been understood. It then discusses the latest curriculum revision in the province, which is in the process of being implemented. This new revision has dramatically changed the style of the curriculum in comparison with previous revisions, while also maintaining continuity in some areas, such as its conception of citizenship education. After this review, the author discusses issues related to the new curriculum such as its specific focus on particular concepts or theories which can limit teacher views and practices related to citizenship education. The chapter concludes by discussing alternative curriculum-framing and teaching ideas for citizenship education and social studies in general that connect into contemporary work and contexts.
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Colden, Cadwallader. "Their Wars and Treaties of Peace with the French, from 1665. to 1683. and their Affairs with New-York in that Time." In The History of the Five Indian Nations Depending on the Province of New-York in America. Cornell University Press, 2017. http://dx.doi.org/10.7591/cornell/9781501713903.003.0002.
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This chapter details events following the arrival of Mons. de Trasi, Vice-Roy of America, in Quebeck in June 1665. In September of the same year, the Commission of Governor General of Canada arrived, along with eleven vessels that transported a regiment and several families, with all the things necessary to establish a colony. The next spring, the Vice-Roy and the Governor, along with 28 Companies of Foot, and all the inhabitants of the colony, marched into the country of the Mohawks with the aim of destroying the Nation, which not only prevented their commerce with other Indians, but also prevented the settlement of the colony.
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Iacobucci, Frank. "The United Nations Declaration on the Rights of Indigenous Peoples and Canadian Law." In Essays in International Litigation for Lord Collins, 319—C14.N100. Oxford University PressOxford, 2022. http://dx.doi.org/10.1093/oso/9780192867988.003.0015.
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Abstract This chapter begins with a brief history of the Canadian government’s mistreatment of Indigenous people and an overview of the legal frameworks governing Indigenous rights in Canada. Broadly speaking, aboriginal rights are sui generis, or unique, rights held by aboriginal peoples ‘by reason of the fact that aboriginal peoples were once independent, self-governing entities in possession of most of the lands now making up Canada’. Treaty rights arise from treaties or land agreements between Indigenous groups and the Canadian government. The chapter then presents a background of the United Nations Declaration on the Rights of Indigenous Peoples (UNDRIP), focusing on its core principles of free, prior, and informed consent (FPIC) and the corresponding duty to consult. It also examines potential issues and tensions that may arise in adopting UNDRIP as domestic law in Canada. Finally, the chapter looks ahead and discusses strategies to build partnerships between Indigenous groups and the Canadian government as a path forward to achieving reconciliation.
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Kuiper, Yvette D., Ruth F. Aronoff, Christopher G. Daniel, and Madison Bzdok*. "Exploring the nature and extent of the Mesoproterozoic Picuris orogeny in Colorado, USA." In Field Excursions in the Front Range and Wet Mountains of Colorado for GSA Connects 2022, 17–38. Geological Society of America, 2022. http://dx.doi.org/10.1130/2022.0064(02).
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ABSTRACT The Mesoproterozoic is a controversial time within the Earth’s history, and is characterized by high temperature/pressure ratios in metamorphic rocks, a large volume of extensional plutons, very few economic mineral deposits, and possibly a slowdown in plate tectonic processes. In Laurentia, ca. 1.48–1.35 Ga is well known as a time of voluminous ferroan magmatism, which led to conflicting tectonic interpretations that range from continental extension to convergent margin settings. Recently, a ca. 1.50–1.35 Ga orogenic belt was proposed that spanned Laurentia from present-day eastern Canada to the southwestern United States. Unlike the preceding Paleoproterozoic Yavapai/Mazatzal orogenies and the subsequent late Mesoproterozoic Grenville orogeny, the early–mid-Mesoproterozoic Picuris orogeny in the southwestern United States was relatively unrecognized until about two decades ago, when geochronology data and depositional age constraints became more abundant. In multiple study areas of Arizona and New Mexico, deposition, metamorphism, and deformation previously ascribed to the Yavapai/Mazatzal orogenies proved to be part of the ca. 1.4 Ga Picuris orogeny. In Colorado, the nature and extent of the Picuris orogeny is poorly understood. On this trip, we discuss new evidence for the Picuris orogeny in the central Colorado Front Range, from Black Hawk in the central Colorado Front Range to the Wet Mountains, Colorado. We will discuss how the Picuris orogeny reactivated or overprinted earlier structures, and perhaps controlled the location of structures associated with Cambrian rifting, the Cretaceous–Paleogene Laramide orogeny, and the Rio Grande rift, and associated mineralization. We will also discuss whether and how the Picuris orogeny, and the Mesoproterozoic in general, were unique within the Earth’s history.
Conference papers on the topic "HISTORY / Canada / General"
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Housa, Juraj, and Matúš Materna. "Analysis of the air navigation service charging system in the USA and Canada." In Práce a štúdie. University of Žilina, 2022. http://dx.doi.org/10.26552/pas.z.2022.1.19.
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This paper deals with analysis of the air navigation service charging system in the USA and Canada. General information about air navigation service providers is explained here. In the paper are described FAA ATO´s and NAV CANADA´s history, organizational structure, financing and air navigation service charges. And there are practical calculations of charges collected in the USA and Canada.
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Jaques, Susan. "Same Yet Different: A Comparison of Pipeline Industries in Canada and Australia." In 2000 3rd International Pipeline Conference. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/ipc2000-106.
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Canada and Australia are remarkably similar countries. Characteristics such as geography, politics, native land issues, and population are notably similar, while the climate may be considered the most obvious difference between the two countries. The pipeline industries are similar as well, but yet very different in some respects too. This presentation will explore some of the similarities and differences between the pipeline industries in both countries. The focus of the discussion will be mainly on long-distance, cross-country gas transmission pipelines. The author of this paper spent 4 years working for TransCanada PipeLines in Calgary in a pipeline design and construction capacity, and has spent 2.5 years working for an engineering consultant firm, Egis Consulting Australia, in a variety of roles on oil and gas projects in Australia. Topics to be addressed include the general pipeline industry organisation and the infrastructure in both countries. The history of the development of the pipeline industry in each country provides insight as to why each is organised the way it is today. While neither system is “better” than the other, there are certain advantages to Canada’s system (nationally regulated) over Australia’s system (currently state-regulated). The design codes of each country will be compared and contrasted. The pipeline design codes alternate in level of detail and strictness of requirements. Again, it cannot be said that one is “better” than the other, although in some cases one country’s code is much more useful than the other for pipeline designers. Construction techniques affected by the terrain and climate in each country will be explored. Typical pipeline construction activities are well known to pipeliners all over the globe: clear and grade, trench, string pipe, weld pipe, coat welds, lower in, backfill and clean up. The order of these activities may change, depending on the terrain and the season, and the methods of completing each activity will also depend on the terrain and the season, however the principles remain the same. Australia and Canada differ in aspects such as climate, terrain and watercourse type, and therefore each country has developed methods to handle these issues. Finally, some of the current and future opportunities for the 21st century for the pipeline industry in both countries will be discussed. This discussion will include items such as operations and maintenance issues, Canada’s northern development opportunities, and Australia’s national gas grid possibilities.
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Honegger, Douglas G., Mujib Rahman, Humberto Puebla, Dharma Wijewickreme, and Anthony Augello. "Definition of Lateral Spread Displacement for Regional Risk Assessments of Pipeline Vulnerability." In 2010 8th International Pipeline Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ipc2010-31354.
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Terasen Gas Inc. (Terasen) operates a natural gas supply and distribution system situated within one of the zones of the highest seismic activity in Canada. The region encompasses significant areas underlain by marine, deltaic, and alluvial soil deposits, some of which are considered to be susceptible to liquefaction and large ground movements when subjected to earthquake ground shaking. Terasen undertook an assessment of seismic risks to its transmission and key intermediate pressure pipelines in the Lower Mainland in 1994 [1]. The seismic assessment focused on approximately 500 km of steel pipelines ranging from NPS 8 to NPS 42 and operating at pressures from 1900 to 4020 kPa. The 1994 risk assessment provided the basis for detailed site-specific assessment and seismic upgrade programs to retrofit its existing system to reduce risks to acceptable levels. While the general approach undertaken in 1994 remains technically sound, advancements have been made over the past 15 years in the understanding of earthquake hazards and their impact on pipelines. In particular, estimates of the earthquake ground shaking hazard in British Columbia as published by Geological Survey of Canada (GSC) have recently been updated and incorporated into the 2005 National Building Code of Canada (NBCC). In addition, empirical methods of estimating lateral spread ground displacements have been improved as new case-history information has become available. Given these changes, Terasen decided in 2009 to reexamine the seismic risk to Terasen’s pipelines. The scope of the updated seismic risk study was expanded over that in 1994 to include pipelines on Vancouver Island and the Interior of British Columbia. For regional assessments, estimates of lateral spread displacements are necessarily based upon empirical formulations that relate displacement to variables of earthquake severity (earthquake magnitude and distance), susceptibility to liquefaction (density, grain size, fines content), and topography (distance from a river bank or ground slope). Implementing empirical formulae with the results of probabilistic seismic hazard calculations is complicated by the fact that the empirical approach requires earthquake magnitude and distance, as a parametric couple, to be related to the ground shaking severity. However, but such a relationship does not exist in the estimates of mean or modal earthquake magnitude and distance disaggregated from a probabilistic seismic hazard analysis. This paper presents an overview of the approach to regional risk assessment undertaken by Terasen and discusses the unique approach adopted for determining lateral spread displacements consistent with the probabilistic seismic hazard analysis.
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Eckdahl, Rick, Adam Vigrass, Amit Singh, Xinghui Liu, and Larry Chrusch. "Assessment of Limited Entry Cluster Distribution Effectiveness and Impactful Variables using Perforation Erosion Measurements." In SPE Hydraulic Fracturing Technology Conference and Exhibition. SPE, 2022. http://dx.doi.org/10.2118/209122-ms.
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Abstract Limited entry perforating is the most common method of diversion used in unconventional hydraulic fracturing. Still it is not immediately apparent how even the stimulation treatments are distributed between the clusters, and the impact of different perforating variables. This paper presents the finding of two well perforation erosion measurement in the Duvernay formation of Western Canada using two logging techniques, optical imaging and ultrasonic measurements. In two wells multiple perforating variables were tested including shot diameter, shot orientation, perforation pressure drop, variable vs constant cluster shot count, and cluster count per stage. Unstimulated perforations were measured for each perforating charge type and orientation to validate baseline perforation dimensions prior to erosion and use to calibration data for incremental erosion calculation. Each of the two wells were logged with an ultrasonic measurement device while one of the two was also logged with an optical imaging tool separately. Perforation area increase for each perforation and the total area increase for each perforation cluster were analyzed to assess the impact of perforating variables on erosion of individual perforation and effectiveness of different perforating designs with respect to equal distribution. The erosion measurement using both logging techniques provided unique opportunity to compare their measurement capability (optical imaging measured 90% of fracture stages as compared to ultrasonic, but both techniques missed ~10% of total measured perforations to quantify perforation size) and range of uncertainties of measurement erosion (general variability in eroded perf diameter measurement of individual perforation by each technique, but statistically R2 of 0.95 correlation excluding 3 outliers of total 873 perforations measured). Of the variables tested a few stood out as providing more even perforation distribution than others. Not surprisingly, reducing total shot count and subsequent flow area, creating a larger pressure drop at the perforations, resulted in a more even distribution of erosion. Smaller initial hole size with an increased shot count, to provide a similar expected pressure differential, also resulted in improved cluster distribution. Variable shot count perforating achieved a more even distribution and counteracted a nature tendency for heel bias. In general perforations on the lower side of the casing showed increase erosion compared to perforations in the upper part of the casing, providing credence to the notion that sand densities are higher in the bottom of the casing even with very high sand transport velocities. This paper shares a case history with results comparison of two major erosion measurement techniques, erosion variability of each perforation as per its azimuth, and highlights some of the variables that have a large impact on cluster distribution and is of benefit to anyone optimizing a perforating design or developing a similar trial to test cluster distribution in other basins.
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Palisch, Terry, and Jeremy Zhang. "A Novel Method to Detect Cement through Direct Measurement – Case Histories." In SPE Annual Technical Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/206019-ms.
Full textAbstract:
Abstract Cement quality is typically determined through the use of sonic logging tools, more commonly known as cement bond logs (CBLs), or more recently ultrasonic imaging tools (USITs). In general, these tools have served the industry well over time, but with the advent of new and exotic cement blends, as well as multistage cement jobs in today's unconventional horizontal wells, the quality and even location of the cement has become more problematic for basic CBL/USIT tools to detect. In addition, these tools are ineffective through multiple uncemented casing strings. A novel method to detect cement was developed as an offshoot of a technology used for detecting proppant in hydraulically fractured wells. This technique uses a non-radioactive tracer which exhibits a high thermal neutron capture cross section that is then incorporated into the proppant grains during manufacture. The proppant can then be detected using standard neutron-logging tools, at any time during the well's life. By incorporating small volumes of this detectible proppant into the cement slurry, the cement can then be detected using the same logging tools. This leads to identification of the top of cement, as well as the cement quality. If desired, the taggant can be staged such that the top and bottom of a cement stage can be detected. This paper will first review the industry concerns with cement detection. It will then discuss the principles and theory behind how the taggant works, both for basic proppant detection, as well as the novel application as a vehicle for cement detection. This will also include lab testing showing no impact of the tagged proppant on cement performance. The authors will conclude by presenting several case histories of cement detection, including two horizontal well applications, one each in the Permian and Canada. A third case history will also be presented in which the cement was detected through multiple strings of uncemented casing, to verify success of a cement squeeze in a surface casing remediation. This new technique allows for cement detection in wells in which conventional CBL/USITs are difficult to interpret, including detection of exotic cement blends, and through multiple strings of casing. This allows for more confidence in cement isolation, particularly in today's unconventional wells, where isolation of uphole formations is critical. This paper will be useful for drilling and completion engineers who are concerned with their ability to confirm cement quality, as well as production engineers who must perform remedial cementing operations.
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Ruiz Maraggi, Leopoldo M., Larry W. Lake, and Mark P. Walsh. "Rate-Pseudopressure Deconvolution Enhances Rate-Time Models Production History Matches and Forecasts of Shale Gas Wells." In SPE Canadian Energy Technology Conference. SPE, 2022. http://dx.doi.org/10.2118/208967-ms.
Full textAbstract:
Abstract Physics-based and empirical rate-time models inherently assume constant bottomhole flowing pressure (BHP), an assumption that may not hold for many unconventional wells. Hence, applying these models without accounting for BHP variations might lead to inaccurate: (a) flow regime identification, (b) estimation of the parameters of these models, and (c) estimated ultimate recovery (EUR) and drainage volumes. This study evaluates and compares the predictions of rate-time relations including and ignoring corrections for time-varying BHP for both synthetic and shale gas wells. We generate a real gas synthetic case with errors in the time-varying BHP. First, we convert pressures into pseudopressures. Second, we deconvolve the pseudopressure history by applying the regularized exponential basis function inverse scheme to obtain an equivalent rate—the unit-pseudopressure-drop rate at standard conditions—at constant BHP. Third, we history-match the production using the scaled single-phase compressible fluid physics-based model for three different approaches: (a) using rate-time-pressure data with rate-pseudopressure deconvolution, (b) using rate-time-pressure data using just rate-pressure deconvolution, and (c) using only rate-time data. Finally, we compare the results in terms of their history-matches and estimated reservoir parameters. We conclude by illustrating the application of this procedure to shale gas wells. For the synthetic case, the fit of the single-phase compressible fluid rate-time model using rate-pseudopressure deconvolution can accurately estimate the original gas-in-place, characteristic time, gas permeability, and fracture half-length. In contrast, considerable errors are noted when either using rate-pressure deconvolution or failing to account for variable BHP. Regarding the shale gas examples, the rate-pseudopressure deconvolution scheme accurately identifies the flow regimes present in the well, which can be difficult to detect by only analyzing rate-time data. For this reason, the fits of the scaled single-phase compressible fluid model using only rate-time results in unreasonably large estimates of the reservoir parameters and EUR. In contrast, the application of rate-pseudopressure deconvolution constrains the fits of single-phase compressible fluid model yielding more realistic estimates of time of end of linear flow, and EUR. This paper illustrates the application of a workflow that accounts for variable BHP by estimating an equivalent constant unit-pseudopressure-drop gas rate (at standard conditions). We illustrate the workflow for a particular decline-curve model, but the workflow is general and can be applied to any rate-time model. The approach history matches and forecasts the production of unconventional gas reservoirs using rate-time models more accurately than assuming constant BHP.
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Orozco Varela, Luis Pablo, Mariana Blanco Ortiz, Gustavo Campos Fonseca, María Cubillo González, and Javier Nuñez Marín. "El Museo Dialoga: el museo y la sociedad en comunicación crítica." In Congreso CIMED - II Congreso Internacional de Museos y Estrategias Digitales. Valencia: Editorial Universitat Politècnica de València, 2022. http://dx.doi.org/10.4995/cimed22.2022.15643.
Full textAbstract:
El Museo Dialoga: el museo y la sociedad en comunicación crítica. Autores: MSc. Luis Pablo Orozco Varela[1] Sra. Mariana Blanco Ortiz[2] Sr. Gustavo Campos Fonseca[3] Sra. María Cubillo González[4] Sr. Javier Nuñez Marín[5]. Resumen La ponencia consiste en compartir y analizar en profundidad el quehacer comunicativo del Museo de Cultura Popular de la Escuela de Historia de la Universidad Nacional de Costa Rica, específicamente a partir de la iniciativa de diálogo virtual denominada “#elmuseodialoga”, la cual ha potencializado la presencia del museo en las redes sociales académicas y ha contribuido a potenciar enlaces dialógicos con académicos, dentro y fuera de la universidad, así como con actores de la sociedad civil en su conjunto. Esta iniciativa surgió ante el desafío presentado por la pandemia COVID 19 con el fin de potencializar acciones de extensión y difusión de carácter virtual por medio del uso de las redes sociales con las que cuenta el museo, por ejemplo, el canal de youtube, Facebook, Instagram, Twitter y linkedin. Para ello, académicos que laboran en el museo y estudiantes de la Escuela de Historia, han aunado esfuerzos en pro de generar una alternativa de comunicación acorde a los nuevos desafíos de la virtualidad. En ese sentido, se ha potenciado a lo largo de poco más de un año, cuarenta ediciones de diálogo virtual, contando con invitados tanto nacionales, como internacionales, esto último dentro de la modalidad #elmuseodialogainternacional. El espacio de diálogo cuenta con tres ejes trasversales que permiten cubrir un amplio espectro de posibilidades temáticas: a) Cultura popular, historia, arte y patrimonio, b) difusión del quehacer académico y c) temas de actualidad nacional e internacional. En el primer eje abordamos todo lo relativo a patrimonio cultural, materia e inmaterial, tradiciones, cultores populares, arte costarricense, entre otros. A partir del segundo eje, trabajamos en difundir el aporte de investigaciones de académicos tanto de la UNA como de otras universidades nacionales e internacional, con el fin de divulgar a públicos más amplios la contribución del conocimiento producido por las universidades a la sociedad en su conjunto. En el caso del tercer eje, reforzamos la relación pasado-presente, generando espacios de lectura de la realidad nacional e internacional, abriendo también horizontes de prospectiva. Palabras claves: Comunicación, Pedagogía, Cultura contemporánea, Patrimonio Cultural, Historia. The Museum Dialogues: the museum and society in critical communication. Resume The presentation consists of sharing and analyzing in depth the communicative work of the Museum of Popular Culture of the School of History of the National University of Costa Rica, specifically from the virtual dialogue initiative called "#elmuseodialoga", which has potentiated the presence of the museum in academic social networks and has contributed to fostering dialogic links with academics, inside and outside the university, as well as with actors from civil society as a whole. This initiative arose in order to enhance virtual extension and dissemination actions through the use of social networks that the museum has, for example, the YouTube channel, Facebook, Instagram, Twitter and LinkedIn. To this end, academics who work at the museum and students from the School of History have joined forces to generate a communication alternative in line with the new challenges of virtuality. In this sense, forty editions of virtual dialogue have been promoted over the course of just over a year, with both national and international guests, the latter within the #elmuseodialogainternacional modality. The dialogue space has three transversal axes that allow covering a wide spectrum of thematic possibilities: a) Popular culture, history, art and heritage, b) dissemination of academic work and c) current national and international issues. In the first axis we address everything related to cultural heritage, material and immaterial, traditions, popular cultists, Costa Rican art, among others. From the second axis, we work on disseminating the contribution of academic research from both the UNA and other national and international universities, in order to disclose to wider audiences, the contribution of the knowledge produced by universities to society as a whole. In the case of the third axis, we reinforce the past-present relationship, generating spaces for reading the national and international reality, also opening prospective horizons. Keywords: Communication, Pedagogy, Contemporary Culture, Cultural Heritage, History. [1] Académico Museo de Cultura Popular, Escuela de Historia, UNA. [2] Estudiante Escuela de Historia, UNA. [3] Estudiante Escuela de Historia, UNA. [4] Estudiante Escuela de Historia, UNA. [5] Estudiante Escuela de Historia, UNA.
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Esmaeili, Sajjad, Apostolos Kantzas, and Brij Maini. "A New Insight into the Determination of True Residual Oil Saturation and Oil Relative Permeability from the Experimental Data in Heavy Oil/Water Systems." In SPE Canadian Energy Technology Conference. SPE, 2022. http://dx.doi.org/10.2118/208913-ms.
Full textAbstract:
Abstract Determination of true residual oil saturation and oil relative permeability curve for heavy oil/water systems requires extensive effort and time as the breakthrough time occurs early in the imbibition process and the history match techniques are not able to obtain these two parameters perfectly. The aim of this work is to provide a new insight into the determination of residual oil saturation and oil relative permeability from core flooding in heavy oil/water systems at different temperatures. Literature claimed that the ratio of water relative permeability to oil relative permeability should be considered besides the production and pressure drop data in history matching to determine the residual oil saturation more accurately. In this regard, different relative permeability curves from our previous experimental works are incorporated in a series of simulations that were run for up to 100 PV of water injection. Production and pressure drop data were generated where a normal error distribution is added to the input data. The history matching runs (considering relative permeability ratio) are carried out to examine how many pore volumes of water need to be injected to reach the true residual oil saturation accurately in different experiments. The history matching results (with a Corey relative permeability model), employing the production data, pressure drop data, and the ratio of water relative permeability to oil relative permeability, which can be calculated fairly accurate from the Welge method, confirm that water relative permeability exponent is generally independent of the volume of injected water. Since the irreducible water saturation can be determined nicely during the oil flooding due to the inverse mobility ratio, the water relative permeability is not a function of volume of injected water. In contrast, determination of the true residual oil saturation in five experiments out of six is predicted with an error less than 5%. For several systems at different temperatures, at least 40 PV of water needs to be injected to result in accurate residual oil saturation determination. The oil exponent determination reveals a deviation of 20%-60% from the entered value to the simulation. The ratio of water relative permeability to oil relative permeability should be inserted into the simulation for acceptable history matching of relative permeability determination. The estimation of true residual oil saturation for relative permeability determination from the experimental data cannot be achieved easily. In this study, a new technique described by in the literature has been examined and tested to determine the required pore volume of injected water in different heavy oil/water systems within a wide range of temperatures.
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Dinovitzer, A., R. Lazor, L. B. Carroll, J. Zhou, F. McCarver, S. Ironside, D. Raghu, and K. Keith. "Geometric Dent Characterization." In 2002 4th International Pipeline Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/ipc2002-27076.
Full textAbstract:
The Canadian pipeline design standard (CSA Z662) requires the repair of smooth dents with depths exceeding 6% of the pipeline’s outside diameter. This limit on dent depth is reduced in the presence of additional localized effects such as pipe wall gouges, corrosion, planar flaws or weld seams. It has been noted, however, that pipelines have operated satisfactorily with dents in excess of 10% while others with 3% dents have failed. Based upon observation of this type the question arises, “Is there more to characterizing a dent than its depth?” An ongoing group sponsored project at BMT Fleet Technology Limited (FTL) is exploring the issue of dent characterization using a dent assessment model developed at FTL. The objective of this project is to develop a rapid dent life expectancy characterization technique based upon dent geometry, line pressure history and line pipe material properties. This paper will outline the general characterization approach being considered and demonstrate some of the observed and expected relationships between service life and dent geometry. The relative importance of each dent characteristic (geometric measures, line pipe material and line pressure history) will be discussed to demonstrate the potential of the rapid characterization approach being developed.
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Elliott, Kevin J., Chris Rentas, Jamie Fenwick, Jason Hayworth, John D. Albaugh, William Colt Ables, Woitas Tyler, and Stang Ben. "Inhibition Testing with High Strength Quench and Tempered Coiled Tubing." In SPE/ICoTA Well Intervention Conference and Exhibition. SPE, 2022. http://dx.doi.org/10.2118/209039-ms.
Full textAbstract:
Abstract High strength quenched and tempered coiled tubing (CT) has been developed and commercialized as far back as the 1990s, however in recent years it has grown to be a substantial, if not the main, type of CT in many markets. Testing programs for sour environment compatibility using inhibition exist for similar strength levels of conventionally produced coiled tubing and has been used as justification for utilization of Q&T coiled tubing with existing CT equipment and operations in sour environments. Quenched and tempered coiled tubing is given final heat treatments which yield a more homogeneous microstructure than conventional products. The field performance of this homogenized product has generally shown that the quenched and tempered tubing performs better in sour environments. This paper then explores the existing body of work with respect to accepted operational guidelines and sour gas testing of coiled tubing. A test program for 140-grade quenched and tempered coiled tubing was developed to explore sour compatibility using an inhibition system. The development and test results of the testing program are described in this paper. The paper concludes with field history of high strength quenched and tempered coiled tubing in Western Canada operations.
Reports on the topic "HISTORY / Canada / General"
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Mohammadi, N., D. Corrigan, A. A. Sappin, and N. Rayner. Evidence for a Neoarchean to earliest-Paleoproterozoic mantle metasomatic event prior to formation of the Mesoproterozoic-age Strange Lake REE deposit, Newfoundland and Labrador, and Quebec, Canada. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/330866.
Full textAbstract:
A complete suite of bulk major- and trace-elements measurements combined with macroscopic/microscopic observations and mineralogy guided by scanning electron microscope-energy dispersive spectrometry (SEM-EDS) analyses were applied on Nekuashu (2.55 Ga) and Pelland (2.32 Ga) intrusions in northern Canada, near the Strange Lake rare earth elements (REE) deposit, to evaluate their magmatic evolution and possible relations to the Mesoproterozoic Strange Lake Peralkaline Complex (SLPC). These Neoarchean to earliest-Paleoproterozoic intrusions, part of the Core Zone in southeastern Churchill Province, comprise mainly hypersolvus suites, including hornblendite, gabbro, monzogabbro/monzodiorite, monzonite, syenite/augite-syenite, granodiorite, and mafic diabase/dyke. However, the linkage of the suites and their petrogenesis are poorly understood. Geochemical evidence suggests a combination of 'intra-crustal multi-stage differentiation', mainly controlled by fractional crystallization (to generate mafic to felsic suites), and 'accumulation' (to form hornblendite suite) was involved in the evolution history of this system. Our model proposes that hornblendite and mafic to felsic intrusive rocks of both intrusions share a similar basaltic parent magma, generated from melting of a hydrous metasomatized mantle source that triggered an initial REE and incompatible element enrichment that prepared the ground for the subsequent enrichment in the SLPC. Geochemical signature of the hornblendite suite is consistent with a cumulate origin and its formation during the early stages of the magma evolution, however, the remaining suites were mainly controlled by 'continued fractional crystallization' processes, producing more evolved suites: gabbronorite/hornblende-gabbro ? monzogabbro/monzodiorite ? monzonite ? syenite/augite-syenite. In this proposed model, the hydrous mantle-derived basaltic magma was partly solidified to form the mafic suites (gabbronorite/hornblende-gabbro) by early-stage plagioclase-pyroxene-amphibole fractionation in the deep crust while settling of the early crystallized hornblende (+pyroxene) led to the formation of the hornblendite cumulates. The subsequent fractionation of plagioclase, pyroxene, and amphibole from the residual melt produced the more intermediate suites of monzogabbro/monzodiorite. The evolved magma ascended upward into the shallow crust to form monzonite by K-feldspar fractionation. The residual melt then intruded at shallower depth to form syenite/augite-syenite with abundant microcline crystals. The granodiorite suite was probably generated from lower crustal melts associated with the mafic end members. Later mafic diabase/dykes were likely generated by further partial melting of the same source at depth that were injected into the other suites.