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Journal articles on the topic 'Unconventional gas wells'

Author: Grafiati

Published: 4 June 2021

Last updated: 16 February 2022

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1

Liangbin, D., G. Li, S. Tiantai, M. Zhang, and H. Shi. "Study on hydraulic pulse cavitating jet drilling in unconventional natural gas wells." "Proceedings" of "OilGasScientificResearchProjects" Institute, SOCAR, no. 4 (December 30, 2014): 19–26. http://dx.doi.org/10.5510/ogp20140400217.

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2

Denney, Dennis. "Better Production Forecasting for Unconventional-Gas Wells." Journal of Petroleum Technology 62, no. 11 (2010): 83–84. http://dx.doi.org/10.2118/1110-0083-jpt.

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3

Clarkson, C. R. "Production data analysis of unconventional gas wells: Workflow." International Journal of Coal Geology 109-110 (April 2013): 147–57. http://dx.doi.org/10.1016/j.coal.2012.11.016.

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4

Hazlett, Randy D., and D. Krishna Babu. "Discrete Wellbore and Fracture Productivity Modeling for Unconventional Wells and Unconventional Reservoirs." SPE Journal 19, no. 01 (2013): 19–33. http://dx.doi.org/10.2118/159379-pa.

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Summary Newly developed, generalized analytic solutions to the heat equation for arbitrary 3D well trajectory in anisotropic media are demonstrated to solve benchmark horizontal- and slanted-well productivity problems with unprecedented speed and accuracy. Arbitrary well trajectory is constructed as an assemblage of spatially integrated, linear well segments, as opposed to a distribution of numerically integrated point sources, to provide advantages in both computational speed and accuracy in singularity handling. Production from each arbitrarily oriented segment is reduced to a combination of

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5

Perry, Robert, Jeffrey Martini, and Pandurang Kulkarni. "Multiphase gas compression to boost unconventional production and reserves." APPEA Journal 59, no. 1 (2019): 268. http://dx.doi.org/10.1071/aj18139.

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Hydraulic fracturing has significantly increased well inflow performance in unconventional reservoirs, enabling their economic development. This improved inflow performance has opened up the possibility of leveraging further reserves and production gains through artificial lift or similar production enhancement techniques. A ‘multiphase compressor’ has been developed with differentiating characteristics:compression ratios of up to 40:1 (an order of magnitude greater than conventional compressors), ability to handle a broad range of multiphase conditions, and significant operational flexibility

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6

Yu, Wei, and Kamy Sepehrnoori. "Optimization of Multiple Hydraulically Fractured Horizontal Wells in Unconventional Gas Reservoirs." Journal of Petroleum Engineering 2013 (September 12, 2013): 1–16. http://dx.doi.org/10.1155/2013/151898.

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Accurate placement of multiple horizontal wells drilled from the same well pad plays a critical role in the successful economical production from unconventional gas reservoirs. However, there are high cost and uncertainty due to many inestimable and uncertain parameters such as reservoir permeability, porosity, fracture spacing, fracture half-length, fracture conductivity, gas desorption, and well spacing. In this paper, we employ response surface methodology to optimize multiple horizontal well placement to maximize Net Present Value (NPV) with numerically modeling multistage hydraulic fractu

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7

Johnson, R. L., Jr, C. W. Hopkins, and M. D. Zuber. "TECHNICAL CHALLENGES IN THE DEVELOPMENT OF UNCONVENTIONAL GAS RESOURCES IN AUSTRALIA." APPEA Journal 40, no. 1 (2000): 450. http://dx.doi.org/10.1071/aj99026.

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Unconventional gas resources, defined as low- permeability sandstone, coal seam and naturally- fractured shale gas reservoirs, represent a huge potential resource for future natural gas supply in Australia and around the world. Because low individual well-production rates are often the norm, unconventional reservoir development may involve the drilling of hundreds of wells to make the economics attractive. Thus, careful planning, sound development strategies and cost control are critical for project success.Virtually all unconventional gas resources must be stimulated to be economic; stimulati

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8

Kalfayan, Leonard. "Technology Focus: Unconventional and Tight Reservoirs (July 2021)." Journal of Petroleum Technology 73, no. 07 (2021): 57. http://dx.doi.org/10.2118/0721-0057-jpt.

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As unconventional oil and gas fields mature, operators and service providers are looking toward, and collaborating on, creative and alternative methods for enhancing production from existing wells, especially in the absence of, or at least the reduction of, new well activity. While oil and gas price environments remain uncertain, recent price-improvement trends are supporting greater field testing and implementation of innovative applications, albeit with caution and with cost savings in mind. Not only is cost-effectiveness a requirement, but cost-reducing applications and solutions can be, to

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9

Redmond, Helen. "Impact of energy generation on health: unconventional gas." Proceedings of the Royal Society of Victoria 126, no. 2 (2014): 38. http://dx.doi.org/10.1071/rs14038.

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In this age of human-induced climate change, drilling for unconventional gas is expanding rapidly. In the United States hundreds of thousands of wells tap into shale gas, tight sands gas and coal seam gas (CSG). In Australia we have large CSG fields containing thousands of wells in Queensland, and several smaller fields in New South Wales and Victoria. The scale of proposed development of shale gas in South Australia, Western Australia and the Northern Territory will eclipse CSG in the eastern states. Yet unconventional gas extraction has the potential to undermine every single one of the envi

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10

Grimes, Carrie, Geoffrey Cann, and Christopher Margarido. "One well, 30,000 times: Australia's workforce transition to a gas factory." APPEA Journal 55, no. 2 (2015): 486. http://dx.doi.org/10.1071/aj14121.

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Australia’s oil and gas resources are becoming more unconventional, and the workforce management approaches to exploit these resources must also become more unconventional. The shift from conventional to unconventional resource plays, beginning with coal seam gas and now including shale resources, has had a major impact on every aspect of the upstream process. This entails the delivery of upstream gas capacity and on-going gas delivery for thousands of wells across several years, which is much more like a manufacturing process rather than one-off projects—compared to conventional gas where onl

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11

Kharaka, Yousif, Kathleen Gans, James Thordsen, Madalyn Blondes, and Mark Engle. "Geochemical data for produced waters from conventional and unconventional oil and gas wells: Results from Colorado, USA." E3S Web of Conferences 98 (2019): 03002. http://dx.doi.org/10.1051/e3sconf/20199803002.

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Geochemical data for more than 120,000 oil and natural gas wells from the major sedimentary basins in the USA are listed in the USGS National Produced Waters Geochemical Database [1]. In this summary, we report and discuss the geochemical data on produced waters obtained from published literature and the Colorado Oil and Gas Conservation Commission (COGCC) from close to 4,000 new oil and gas wells in Colorado. We emphasize geochemical data of produced waters from shale and tight reservoirs that have increased dramatically in Colorado since 2011, due to deep horizontal drilling, downhole teleme

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12

Nguyen, Kien H., Miao Zhang, and Luis F. Ayala. "Transient pressure behavior for unconventional gas wells with finite-conductivity fractures." Fuel 266 (April 2020): 117119. http://dx.doi.org/10.1016/j.fuel.2020.117119.

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13

Bonetti, Pietro, Christian Leuz, and Giovanna Michelon. "Large-sample evidence on the impact of unconventional oil and gas development on surface waters." Science 373, no. 6557 (2021): 896–902. http://dx.doi.org/10.1126/science.aaz2185.

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The impact of unconventional oil and gas development on water quality is a major environmental concern. We built a large geocoded database that combines surface water measurements with horizontally drilled wells stimulated by hydraulic fracturing (HF) for several shales to examine whether temporal and spatial well variation is associated with anomalous salt concentrations in United States watersheds. We analyzed four ions that could indicate water impact from unconventional development. We found very small concentration increases associated with new HF wells for barium, chloride, and strontium

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14

Troup, Alison, Melanie Fitzell, Sally Edwards, Owen Dixon, and Gopalakrishnan Suraj. "Unconventional petroleum resource evaluation in Queensland." APPEA Journal 53, no. 2 (2013): 471. http://dx.doi.org/10.1071/aj12082.

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The search for unconventional petroleum resources requires a shift in the way the petroleum potential of sedimentary basins is assessed. Gas in source rocks and tight reservoirs has largely been ignored in preference for traditional conventional gas plays. Recent developments in technology now allow for the extraction of gas trapped in low-permeability reservoirs. Assessments of the unconventional petroleum potential of basins, including estimates of the potential resource are required to guide future exploration. The Geological Survey of Queensland is collaborating with Geoscience Australia (

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15

Levine, Audrey D., and Mark J. Benotti. "Baseline groundwater quality in unconventional oil and gas fields." Water Supply 15, no. 6 (2015): 1166–78. http://dx.doi.org/10.2166/ws.2015.078.

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In recent years, expansion of unconventional oil and gas production has prompted significant interest in potential impacts on drinking water resources. In many cases, water quality investigations rely on access to landowner water wells to develop baseline data prior to drilling; respond to spills, complaints, or incidents; or evaluate potential impacts due to drilling, completion, hydraulic fracturing, water management, or well operation. However, differences in water well construction, operation, maintenance, and wellhead protection practices can complicate sampling efforts and introduce arti

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16

Cai, Bo, Yun Hong Ding, Yong Jun Lu, Hua Shen, and Zhen Zhou Yang. "Status of Unconventional Oil and Gas Resources and its Environment Risk Factors in China." Applied Mechanics and Materials 541-542 (March 2014): 927–31. http://dx.doi.org/10.4028/www.scientific.net/amm.541-542.927.

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The development of resources has achieved revolution from unconventional resources to conventional resources in North America. China's tight oil and gas reservoirs are widely distributed and the exploration potential is tremendous. The abundant unconventional natural gas resources, if exploited reasonably and efficiently, will provide stable energy supply for the sustainable development of Chinese economy. In this paper, a few key techniques including drilling and hydraulic fracturing for the development of unconventional oil and gas resources were introduced. The factors of unconventional oil

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Stopa, Jerzy, Rafał Wiśniowski, Paweł Wojnarowski, Damian Janiga, and Krzysztof Skrzypaszek. "Integrated Approach to Drilling Project in Unconventional Reservoir Using Reservoir Simulation." E3S Web of Conferences 35 (2018): 01002. http://dx.doi.org/10.1051/e3sconf/20183501002.

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Accumulation and flow mechanisms in unconventional reservoir are different compared to conventional. This requires a special approach of field management with drilling and stimulation treatments as major factor for further production. Integrated approach of unconventional reservoir production optimization assumes coupling drilling project with full scale reservoir simulation for determine best well placement, well length, fracturing treatment design and mid-length distance between wells. Full scale reservoir simulation model emulate a part of polish shale – gas field. The aim of this paper is

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18

Johns, Rhodri, and Patrick Despland. "2013 PESA industry review: exploration." APPEA Journal 54, no. 1 (2014): 431. http://dx.doi.org/10.1071/aj13043.

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Exploration activity in Australia in 2013 occurred across a broad spectrum of conventional and unconventional plays. Competition for acreage was buoyant with large tracts of key onshore basins either licensed or under application. Offshore, there were new awards on the western Australian margin and in the Bight Basin off SA. Offshore 3D seismic acquisition was reduced from anomalously high levels in 2012. Onshore 2D seismic acquisition was at historic highs and onshore 3D was the most ever recorded. Overall drilling levels were maintained despite a decline offshore. Of 13 offshore wells drille

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19

Meredith, Christopher. "Australia's unconventional future: where next?" APPEA Journal 59, no. 2 (2019): 654. http://dx.doi.org/10.1071/aj18098.

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Eastern Australia is now reliant on coal-seam gas (CSG) for its domestic gas supply; in 2018, it accounted for two-thirds of total eastern coast gas production. Australia has seen a rapid transition from relying on ‘conventional’ resources to relying on ‘unconventional’ gas supply. As legacy conventional supply sources mature and decline, exploration has been insufficient to keep up with market demand. This has created the opportunity for Australia’s vast CSG resources to fill the gap. But the development of CSG has been neither easy nor straightforward. And the costly requirement to drill hun

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20

ZHANG, QI, YULIANG SU, HUI ZHAO, WENDONG WANG, KAIJIE ZHANG, and MINGJING LU. "ANALYTIC EVALUATION METHOD OF FRACTAL EFFECTIVE STIMULATED RESERVOIR VOLUME FOR FRACTURED WELLS IN UNCONVENTIONAL GAS RESERVOIRS." Fractals 26, no. 06 (2018): 1850097. http://dx.doi.org/10.1142/s0218348x18500974.

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It has been proved that effective stimulated reservoir volume (ESRV) is a significant area dominant to the production of the fractured well in unconventional gas reservoirs. Although ESRV properties can be estimated based on the microseismic technology and the analysis of actual fracturing data, the operations are complicated and results are inaccurate. Due to the complex structure of stimulated reservoir volume (SRV) with fractal and chaotic characteristics, a fractal evaluation model for ESRV (ESRV-FEM) of fractured wells in unconventional gas (both tight and shale gas) reservoirs is develop

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21

Uzun, Ilkay, Basak Kurtoglu, and Hossein Kazemi. "Multiphase Rate-Transient Analysis in Unconventional Reservoirs: Theory and Application." SPE Reservoir Evaluation & Engineering 19, no. 04 (2016): 553–66. http://dx.doi.org/10.2118/171657-pa.

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Summary In unconventional reservoirs, production data are generally analyzed by use of rate-transient techniques derived from single-phase linear-flow models. Such linear-flow models use rate-normalized pressure, which is pressure drop divided by reservoir-flow rate vs. square root of time. In practice, the well-fluid production includes water, oil, and gas. The oil can be light oil, volatile oil, and gas/condensate as in the Bakken, Eagle Ford, and Barnett, respectively. Thus, single-phase analysis needs modification to account for production of fluid mixtures. In this paper, we present a mul

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22

Bhattacharya, Srimoyee, and Michael Nikolaou. "Analysis of Production History for Unconventional Gas Reservoirs With Statistical Methods." SPE Journal 18, no. 05 (2013): 878–96. http://dx.doi.org/10.2118/147658-pa.

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Summary Unconventional gas resources have dramatically changed the future energy landscape. Developing these resources involves substantial risk. Such risk can be mitigated if information gathered at initial stages of the development of a field is used efficiently and effectively to guide future development. A variety of tools—such as decline-curve analysis (DCA), type-curve analysis, simulator history matching, and artificial intelligence (AI)—is used to that effect. These tools accomplish partially overlapping but different tasks. Additional tools that could not only facilitate the analysis

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23

Carpenter, Chris. "The Role of Induced Unpropped Fractures in Unconventional Oil and Gas Wells." Journal of Petroleum Technology 68, no. 10 (2016): 58–65. http://dx.doi.org/10.2118/1016-0058-jpt.

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24

Trembath, Carrie, Lindsay Elliott, and Mark Pitkin. "The Nappamerri Trough, Cooper Basin unconventional plays: proving a hypothesis." APPEA Journal 52, no. 2 (2012): 662. http://dx.doi.org/10.1071/aj11076.

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Beach Energy has started exploring unconventional gas in the Nappamerri Trough, the central trough within the Cooper Basin, where the Permian section has long been regarded as the primary source for most of the conventional hydrocarbons found within the basin. This extended abstract discusses the data used to identify the unconventional play and the exploration program carried out to date. Mud weights, drill stem test (DST) pressures and log data from early exploration wells identified the Permian formations as overpressured. This with geochemical and mineralogy analyses indicated that the Ros

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Greenstreet, Carl. "From play to production: the Cooper unconventional story—20 years in the making." APPEA Journal 55, no. 2 (2015): 407. http://dx.doi.org/10.1071/aj14042.

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The Cooper Basin is Australia’s leading onshore producing hydrocarbon province, having produced more than 6 Tcf of natural gas since 1969. The basin is undergoing renewal 45 years later, driven by the emerging growth of east coast LNG export-driven demand. Following North America’s shale gas revolution, the Cooper Basin’s unconventional potential is now widely appreciated and it is believed to hold more than 100 Tcf of recoverable gas. This resource potential is held in four stacked target unconventional lithotypes, each having demonstrated gas flows: tight sands—heterogeneous stacked fluvial

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Nell, Marika, and Damian E. Helbling. "Exploring matrix effects and quantifying organic additives in hydraulic fracturing associated fluids using liquid chromatography electrospray ionization mass spectrometry." Environmental Science: Processes & Impacts 21, no. 2 (2019): 195–205. http://dx.doi.org/10.1039/c8em00135a.

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27

Qiu, Chaolang, Mofazzal Hossain, Hassan Bahrami, and Yangfan Lu. "The effect of hydraulic-fracture parameters on the welltest response of multi-fractured tight-gas reservoirs." APPEA Journal 53, no. 1 (2013): 375. http://dx.doi.org/10.1071/aj12033.

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With the reduction of conventional reserves, the demand and exploration of unconventional sources becomes increasingly important in the energy supply system. Low permeability, low porosity, and the complexities of rock formation in unconventional gas reservoirs make it difficult to extract commercially viable gas resources. Hydraulic fracture is the most common technique used for commercial production of hydrocarbon resources from unconventional tight-gas reservoirs. Due to the existence of an extremely long transient-flow period in tight-gas reservoirs, the interpretation of welltest data bas

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Tao, Hong Hua, Li Jun Cheng, Jun Feng Liu, and Zhao Hui Lu. "Pressure Transient Analysis for Partial Open Fractured Wells in Shale Gas Reservoirs." Applied Mechanics and Materials 535 (February 2014): 75–83. http://dx.doi.org/10.4028/www.scientific.net/amm.535.75.

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Shale gas has been paid much attention for its great potential as the unconventional energy all over the world. The great success in North America shale gas exploration and development has stimulated the exploration and development of shale gas in China. Shale gas is much different from conventional gas reservoir with its highly difficult in exploration, high technical requirements and expensive costs, so the mechanism study, characterization study and development technology of shale gas are much more important than ever before.Therefore, according to the characteristic of desorption, diffusio

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Yang, Shang Yu, Jian Jun Wang, Jia Wen Han, Hang Wang, and Li Hong Han. "Casing Bearing Capacity with Shear Load for Shale Gas Wells." Materials Science Forum 993 (May 2020): 1190–95. http://dx.doi.org/10.4028/www.scientific.net/msf.993.1190.

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Casing radial deformation during complex fracturing process was seriously for shale gas wells in Sichuan district of China, and the average casing deformation rate in the region is of 50%. The bridge plug, perforating gun and other tools cannot successfully pass with deformed casing. Aiming at the 3-D logging morphology for deformed casing of shale gas wells, the failure modes and mechanisms were analyzed by using elasticity and theoretical mechanics. Many factors were evaluated and integrated to achieve quantitative evaluation model including geology feature, wellbore trajectory, cement prope

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He, Can, and Radisav D. Vidic. "Impact of Antiscalants on the Fate of Barite in the Unconventional Gas Wells." Environmental Engineering Science 33, no. 10 (2016): 745–52. http://dx.doi.org/10.1089/ees.2015.0603.

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31

Clarkson, C. R. "Production data analysis of unconventional gas wells: Review of theory and best practices." International Journal of Coal Geology 109-110 (April 2013): 101–46. http://dx.doi.org/10.1016/j.coal.2013.01.002.

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Stringfellow, William T., and Mary Kay Camarillo. "Flowback verses first-flush: new information on the geochemistry of produced water from mandatory reporting." Environmental Science: Processes & Impacts 21, no. 2 (2019): 370–83. http://dx.doi.org/10.1039/c8em00351c.

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Unconventional oil and gas development uses the subsurface injection of large amounts of a variety of industrial chemicals, and there are concerns about the return of these chemical to the surface with water produced with oil and gas from stimulated wells.

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Leahy, Martin, and James Holbeach. "Flow assurance application to unconventional gas wells: down-hole separation efficiency calculations with computational fluid dynamics." APPEA Journal 55, no. 2 (2015): 480. http://dx.doi.org/10.1071/aj14115.

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Coal bed methane (CBM) operations reduce the reservoir pressure to desorb gas from the coal matrix. Internationally, this is often achieved by drawing down water through pumping from the reservoir, by surface or down-hole pump. Pumping water lowers the bottom-hole pressure and also provides a first pass separation of water and gas in the well annulus. Set-point pressure pumps are typically used to pump water up the inner tubing, whilst gas is produced in the outer annulus. In many operating CBM applications this separation is adequate, removing a large percentage of bulk and droplet-based wate

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Zakirov, Sumbat, Dmitry Klimov, Ernest Zakirov, Ilya Indrupskiy, and Daniil Anikeev. "Unconventional technology for sealing and P&A of wells for prevention of global environmental disasters." E3S Web of Conferences 258 (2021): 08019. http://dx.doi.org/10.1051/e3sconf/202125808019.

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Many, if not all of the oil and gas fields under development, have leaking wells. There are a lot of so-called abandoned, ownerless wells. Subsoil users, by one way or another, make efforts to eliminate leakage in such wells. At the same time there are no universal and reliable techniques. The problem of well leakage is seriously increasing when wells are decommissioned (plugged and abandoned, P&A), and even more so when the development of the field is finished. The techniques of plugging and abandonment do not guarantee the integrity of the abandoned wells for centuries. Obviously, then t

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Richards, Brenton, and Alexander Côté. "Exploiting the Cooper Basin: conventional lessons and appropriate analogues to guide an unconventional future." APPEA Journal 58, no. 1 (2018): 339. http://dx.doi.org/10.1071/aj17038.

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Over the past decade, there has been a paradigm shift in the exploitation strategy in North American tight gas plays from vertical to horizontal wells. This shift has yet to occur in Australia. The Cooper Basin has vast amounts of contingent and prospective tight gas resources that have yet to be unlocked commercially. These resources continue to be developed primarily with hydraulic fracture stimulated vertical wells. Operators have yet to challenge the status quo and test the Cooper Basin tight gas potential with a drilled, completed and tested horizontal well. There are many advantages to h

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Bhattacharya, Srimoyee, and Michael Nikolaou. "Comprehensive Optimization Methodology for Stimulation Design of Low-Permeability Unconventional Gas Reservoirs." SPE Journal 21, no. 03 (2016): 0947–64. http://dx.doi.org/10.2118/147622-pa.

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Summary Over the past decade, multiple-fracture horizontal wells (MFHWs) have proved successful in recovering oil and particularly gas from very-low-permeability reservoirs. For MFHW planning and design, it is important to be able to make decisions on several variables, such as number of wells, number of fractures per well, amount and type of proppant per fracture, fracture dimensions (length, width, and height), and possibly others. Standard practice for making such decisions is mostly empirical. However, empiricism may not be as successful for new cases that are significantly different from

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R. Ghori, K. Ameed. "Emerging unconventional shale plays in Western Australia." APPEA Journal 53, no. 1 (2013): 313. http://dx.doi.org/10.1071/aj12027.

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Production of shale gas in the US has changed its position from a gas importer to a potential gas exporter. This has stimulated exploration for shale-gas resources in WA. The search started with Woodada Deep–1 (2010) and Arrowsmith–2 (2011) in the Perth Basin to evaluate the shale-gas potential of the Permian Carynginia Formation and the Triassic Kockatea Shale, and Nicolay–1 (2011) in the Canning Basin to evaluate the shale-gas potential of the Ordovician Goldwyer Formation. Estimated total shale-gas potential for these formations is about 288 trillion cubic feet (Tcf). Other petroleum source

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Cooper, Gareth, Roger Xiang, Nick Agnew, Phil Ward, Mark Fabian, and Neil Tupper. "A systematic approach to unconventional play analysis: the oil and gas potential of the Kockatea Shale and Carynginia Formation, North Perth Basin, Western Australia." APPEA Journal 55, no. 1 (2015): 193. http://dx.doi.org/10.1071/aj14015.

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Key formations throughout the North Perth Basin have been mapped from 3D and 2D seismic data to define depth grid inputs to a 3D basin model calibrated with temperature and maturity data from 45 wells, plus an additional 27 pseudo well models. The Permian Carynginia Formation and Early Triassic Hovea Member of the Kockatea Shale have been defined in this model as unconventional shale reservoir targets. Basin-wide pyrolysis data have been used to construct kinetics curves for both the Carynginia Formation and Kockatea Shale, which define Type D/E and mixed B, and D/E kerogen types, respectively

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Davies, Richard J., Sam Almond, Robert S. Ward, et al. "Oil and gas wells and their integrity: Implications for shale and unconventional resource exploitation." Marine and Petroleum Geology 56 (September 2014): 239–54. http://dx.doi.org/10.1016/j.marpetgeo.2014.03.001.

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Roy, Nick, Irina Usenko, Oleksandr Аkulshyn, and Igor Limar. "The modern interpretation of the high-flow gas wells study results." E3S Web of Conferences 230 (2021): 01012. http://dx.doi.org/10.1051/e3sconf/202123001012.

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Based on the analysis of the currently existing methods of interpreting the results of research into gas-saturated and gas-condensate formations in the case of stationary or non-stationary filtration, the direction of solving this problem is indicated specifically for high-flow wells using new calculation method. Since the method has not existed in the traditional way until now, the new one is based on an original and unconventional approach to the initial data. And the results of its application are several times higher than the results of the traditional approach to the study of gas wells wi

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Cai, Bo, Yun Hong Ding, Hua Shen, Zhou Qi Cui, and Chun Ming He. "Hydraulic Fracturing Technology in Oil and Gas Development." Advanced Materials Research 962-965 (June 2014): 560–63. http://dx.doi.org/10.4028/www.scientific.net/amr.962-965.560.

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Fracturing as a method to stimulate shallow, hard rock oil wells dates back to the 1860s. The first hydraulic fracturing technology was applied in the US states of Pennsylvania, New York, Kentucky in 1947. Hydraulic fracture was formed by pumping the fracturing fluid into the wellbore at a sufficient rate to increase downhole pressure to exceed that of the pressure gradient of the rock. In this paper, a few key techniques including hydraulic fracturing for the development of oil and gas resources were introduced. It has become a common technique to enhance the production of low-permeability fo

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Niu, Hong Bo, Hong Shan Zhao, and Ji Fei Cao. "Application and Cognition of Unconventional Horizontal Well Drilling Technology in Shengli Oilfield." Applied Mechanics and Materials 318 (May 2013): 513–18. http://dx.doi.org/10.4028/www.scientific.net/amm.318.513.

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Long Horizontal Section Well has been an important way to explore deficient oil/gas field. Relative drilling technology has developed rapidly in recent years in China. This article puts focus on the methodology of well plan, trajectory control and matched tools and application situation of drilling fluid and drilling equipment for long horizontal section well. Based on the analysis of drilling and completion technical difficulties, suitability of some well design methods such as catenary curve used to decline friction and torque have been discussed, and even more practical means proven in many

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Cockerill, Ian. "Australian exploration review 2020." APPEA Journal 61, no. 2 (2021): 331. http://dx.doi.org/10.1071/aj21006.

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Australian exploration battled on through the challenging headwinds of 2020 and surprisingly, 2020 saw an increase in exploration drilling on 2019 activity. Twenty-five exploration wells were drilled in 2020 versus 20 exploration wells drilled in 2019. Eight discoveries were made during the year, with the most significant being the Enterprise discovery in the Otway Basin. 2020 also saw a return to exploration drilling in the Beetaloo Sub-basin unconventional plays. Appraisal drilling was dominated by Cooper-Eromanga Basin and coal seam gas activity. There were no offshore appraisal wells in 20

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Kang, Mary, Shanna Christian, Michael A. Celia, et al. "Identification and characterization of high methane-emitting abandoned oil and gas wells." Proceedings of the National Academy of Sciences 113, no. 48 (2016): 13636–41. http://dx.doi.org/10.1073/pnas.1605913113.

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Recent measurements of methane emissions from abandoned oil/gas wells show that these wells can be a substantial source of methane to the atmosphere, particularly from a small proportion of high-emitting wells. However, identifying high emitters remains a challenge. We couple 163 well measurements of methane flow rates; ethane, propane, andn-butane concentrations; isotopes of methane; and noble gas concentrations from 88 wells in Pennsylvania with synthesized data from historical documents, field investigations, and state databases. Using our databases, we (i) improve estimates of the number o

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Jasechko, Scott, and Debra Perrone. "Hydraulic fracturing near domestic groundwater wells." Proceedings of the National Academy of Sciences 114, no. 50 (2017): 13138–43. http://dx.doi.org/10.1073/pnas.1701682114.

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Hydraulic fracturing operations are generating considerable discussion about their potential to contaminate aquifers tapped by domestic groundwater wells. Groundwater wells located closer to hydraulically fractured wells are more likely to be exposed to contaminants derived from on-site spills and well-bore failures, should they occur. Nevertheless, the proximity of hydraulic fracturing operations to domestic groundwater wells is unknown. Here, we analyze the distance between domestic groundwater wells (public and self-supply) constructed between 2000 and 2014 and hydraulically fractured wells

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Xiao, Xiao Ling, Jia Li Cui, Yu Peng Zhang, Xiang Zhang, and Han Wu. "Classification of Tight Sandstone Reservoir Based on the Conventional Logging." Applied Mechanics and Materials 633-634 (September 2014): 526–29. http://dx.doi.org/10.4028/www.scientific.net/amm.633-634.526.

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With the increasing social demand for oil and gas resources, the exploration and development of unconventional oil and gas reservoirs will pay more and more attention. Tight sandstone reservoir classification is one of the important tasks in the research of unconventional oil and gas exploration and development.Limitations exist in tight sandstone reservoir classification by various conventional logging.A method for the classification of tight sandstone reservoir based on support vector machine is presented in this paper, combining with the core data and flow unit to establish the reservoir cl

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Carbrey, Ryan. "Forecasting growth of the Australian unconventional oil and gas services market." APPEA Journal 59, no. 2 (2019): 531. http://dx.doi.org/10.1071/aj18158.

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This paper examines the unconventional oil and gas oilfield services market in Australia. First, the paper gives an activity forecast through to 2025 on how many wells are expected to be completed. The paper looks at how the geology, supply chain, infrastructure, finance and other constraints compare to the Vaca Muerta in Argentina and the Permian in the United States. Finally, the paper looks at the completive landscape and supply demand balance of the frac services market within Australia.

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Taherdangkoo, Reza, Alexandru Tatomir, Mohammad Taherdangkoo, Pengxiang Qiu, and Martin Sauter. "Nonlinear Autoregressive Neural Networks to Predict Hydraulic Fracturing Fluid Leakage into Shallow Groundwater." Water 12, no. 3 (2020): 841. http://dx.doi.org/10.3390/w12030841.

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Hydraulic fracturing of horizontal wells is an essential technology for the exploitation of unconventional resources, but led to environmental concerns. Fracturing fluid upward migration from deep gas reservoirs along abandoned wells may pose contamination threats to shallow groundwater. This study describes the novel application of a nonlinear autoregressive (NAR) neural network to estimate fracturing fluid flow rate to shallow aquifers in the presence of an abandoned well. The NAR network is trained using the Levenberg–Marquardt (LM) and Bayesian Regularization (BR) algorithms and the result

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Davies, Richard J., Sam Almond, Robert S. Ward, et al. "Reply: “Oil and gas wells and their integrity: Implications for shale and unconventional resource exploitation”." Marine and Petroleum Geology 59 (January 2015): 674–75. http://dx.doi.org/10.1016/j.marpetgeo.2014.07.014.

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Yan, Beizhan, Martin Stute, Reynold A. Panettieri, et al. "Association of groundwater constituents with topography and distance to unconventional gas wells in NE Pennsylvania." Science of The Total Environment 577 (January 2017): 195–201. http://dx.doi.org/10.1016/j.scitotenv.2016.10.160.

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