Relevant bibliographies by topics / The drilling head

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'The drilling head'

Author: Grafiati
Published: 4 June 2021
Last updated: 13 February 2022

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Journal articles on the topic "The drilling head"

1

Król, Kazimierz, Krzysztof Olejarczyk, Marcin Wikło, Zbigniew Siemiątkowski, and Krzysztof Kołodziejczyk. "Individuality dynamic system drilling head – pipe drilling – shaft during drilling deep hole." Mechanik, no. 3 (March 2015): 190/1–190/6. http://dx.doi.org/10.17814/mechanik.2015.3.110.

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Peng, Xiaogan, Liang Li, Bo Chen, Shen Yin, Zhongwang Yin, and Yinfei Yang. "Experimental study on drilling basalt with self-vibratory drilling head." Advances in Space Research 65, no. 5 (March 2020): 1344–52. http://dx.doi.org/10.1016/j.asr.2019.12.002.

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Agzamov, Z. V. "Head-target tracking control of well drilling." Journal of Physics: Conference Series 1015 (May 2018): 032159. http://dx.doi.org/10.1088/1742-6596/1015/3/032159.

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Smith, Stephen, Thomas Fehring, and Walter Beaver. "EFFICACY OF DRILLING THE OSTEONECROTIC FEMORAL HEAD." Southern Medical Journal 86, Supplement (September 1993): 83. http://dx.doi.org/10.1097/00007611-199309001-00224.

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Hou, Yali, Changhe Li, Hongliang Ma, Yanbin Zhang, Min Yang, and Xiaowei Zhang. "An Experimental Research on Bone Drilling Temperature in Orthopaedic Surgery." Open Materials Science Journal 9, no. 1 (October 6, 2015): 178–88. http://dx.doi.org/10.2174/1874088x01509010178.

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The bone drilling temperature fields under different cutting parameters and cooling modes were experimental researched by using common twist drill, diamond punching pin, diamond bullet-like grinding head and diamond spherical grinding head. Three cooling modes were applied, namely, natural air cooling, normal saline pouring cooling and normal saline spray cooling. K-thermocouple was used to measure temperature in bone hole. Results showed that the drill shape could influence drilling temperature greatly. The maximum drilling temperature of diamond spherical grinding head is 46.31°C. The maximum drilling temperature of common twist drill is 42.1°C and that of diamond bullet-like grinding head is 38.29°C. The drilling temperatures at drill speed is under 560 r/min, 900 r/min, 1,250 r/min and 2,100 r/min are 38.84°C, 41.1°C, 43.84°C and 46.31°C. This reflects that under same of other drilling parameters, drilling temperature increases with the increase of drill speed. The maximum bone drilling temperatures of diamond punch pin under 2,100 r/min speed of mainshaft and air cooling conditions vary as feed speed increase firstly and then decrease. The normal saline spray cooling has the lowest maximum drilling temperature of (29.34°C) at same depth, following by normal saline pouring cooling of (32.45°C) and air cooling of (40.28°C) successively. The normal saline spray cooling has the best cooling effect, followed by normal saline pouring cooling and air cooling successively.
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Azuma, Nobuhiko, Ikuo Tanabe, and Hideaki Motoyama. "Heat generated by cutting ice in deep ice-core drilling." Annals of Glaciology 47 (2007): 61–67. http://dx.doi.org/10.3189/172756407786857848.

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AbstractIn order to understand and solve the ‘warm-ice problem’ in deep ice-core drilling, we applied the metal-cutting theory to ice and estimated the heat generated during ice coring taking into account the mechanical and thermal properties of the ice and cutters. We found that (1) most of the heat in cutting is generated by shear deformation at the shear plane of ice, and the heat could increase the chip temperature by several degrees; (2) the rake angle of the cutter has more influence on the temperature increase in chips than the barrel rotation speed and penetration pitch; (3) if the cutter is made of a material with larger thermal conductivity, the temperature increase in the chips can be reduced; and (4) if the density of the liquid is less than the density of ice, the cutting chips sink to the bottom and the friction heat generated by the drill head and slush can raise the ambient temperature of the drill head by several degrees.
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Gao, Xing Jun, Ping Zou, De Jun Li, and Zhi Yang Xiang. "Research on Breaking Chip and Drilling Force for High Temperature Alloy Based on Self-Vibratory Drilling Head." Advanced Materials Research 299-300 (July 2011): 1044–47. http://dx.doi.org/10.4028/www.scientific.net/amr.299-300.1044.

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Problems to evacuate chips will arise from manufacturing deep holes, especially for small diameters. Such problems induce frequent tool breakage and poor surface quality. The vibratory drilling enables the chip to be split into small elements thanks to the axial vibrations of the drill, self-maintained by the cutting energy. This research aims to improve breaking chip concerning high temperature alloy by vibraiont drilling as well as to establish a drilling technology. The development of breaking chip technology was presented. By the aid of the self-made vibrating drilling table, the axial vibration drilling was experimented on high temperature alloy with different parameter of vibration drilling. The breaking chip effect of vibration cutting was studied, and the axial drilling force and torque of vibration drilling were analyzed. The relation of each parameter and its effect on machining process was theoretically discussed. The experiment results show that vibration drilling is in favor of breaking chip, making the volume of chip small, and removing chips fluently, and the change of drilling force is relatively steady with some drilling parameters.
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Chládek, P., V. Havlas, and T. Trc. "Drilling and plombage (core decompression) of a femoral head avascular necrosis." Osteologie 19, no. 01 (2010): 36–39. http://dx.doi.org/10.1055/s-0037-1619921.

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SummaryThe treatment of femoral head necrosis of adults is still rather problematic. Conservative treatment has been reported relatively unsuccessful and surgical treatment does not show convincing results either. The most effective seems to be a surgical treatment in early stages of the disease, however, the diagnosis still remains relatively complicated. For the late stages (2B and above) the most effective treatment option is represented by core decompression and vascular grafting. However, drilling and plombage (especially when using press-fit technique) seems to be successful, although not excellent. The authors describe their own method of drilling and plombage of the necrotic zone of the femoral head in 41 patients with X-ray detected necrotic changes of the femoral head. The pain measured by VAS was seen to decrease after surgery in all patients significantly. The Jacobs score was also observed to have increased (from fair to good outcome). We have not observed any large femoral head collapse after surgery, moreover, in some cases an improvement of the round shape of the femoral head was seen. It is important to mention that in all cases femoral heads with existing necrotic changes (flattening or collapse) were treated. Although the clinical improvement after surgery was not significantly high, the method we describe is a safe and simple method of diminishing pain in attempt to prepare the femoral head for further treatment in a future, without significant restriction of the indication due to necrosis (osteochondroplasty, resurfacing, THR).
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Boiadjiev, Tony, Rumen Kastelov, George Boiadjiev, Kamen Delchev, and Kazimir Zagurski. "Automatic bone drilling by femoral head structure detection." Biotechnology & Biotechnological Equipment 32, no. 3 (November 23, 2017): 785–94. http://dx.doi.org/10.1080/13102818.2017.1407256.

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Mousavi, S., V. Gagnol, and P. Ray. "Machining prediction of spindle–self-vibratory drilling head." Journal of Materials Processing Technology 213, no. 12 (December 2013): 2119–25. http://dx.doi.org/10.1016/j.jmatprotec.2013.06.012.

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Dissertations / Theses on the topic "The drilling head"

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Åkerlund, Elin, Rebecka Havo, Åberg Jakob Jonsson, Patrik Österberg, and Mikael Fredriksson. "High Performance Steel for Percussive Drilling." Thesis, Uppsala universitet, Institutionen för teknikvetenskaper, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-323387.

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Atlas Copco Secoroc AB are searching after new bulk materials for drill heads that are used in percussive drilling in order to improve their strength and durability. The aim of this project is to assist Atlas Copco in this search and provide them with further information regarding material properties, alloying elements, suppliers, etc. A literary study was carried out in order to identify materials that had UTS and KIC more than or equal to 1700 MPa and 70 MPa*m1/2, respectively. Materials that fulfilled these criteria were T250 grade maraging steel, Cobalt free maraging steel, High cobalt maraging steel, 300 grade maraging steel, AerMet 100, AF1410, S53, M54, 300M, 4340M and PremoMet. These were categorized into maraging steels, high alloy secondary hardened steels, and low alloy steels, and were then further researched.  The material with the highest combination of UTS and KIC was M54 followed by AerMet 100; while AF1410 had the highest KIC but a low UTS, and PremoMet had the highest UTS but a low KIC. Maraging steels and HASH steels have a similar price range, while low alloy steels are much cheaper.
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Åkerlund, Elin, Åberg Jakob Jonsson, Patrik Österberg, Rebecka Havo, and Mikael Fredriksson. "High Performance Steel for Percussive Drilling." Thesis, Uppsala universitet, Institutionen för teknikvetenskaper, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-323808.

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Atlas Copco Secoroc AB are searching after new bulk materials for drill heads that are used in percussive drilling in order to improve their strength and durability. The aim of this project is to assist Atlas Copco in this search and provide them with further information regarding material properties, alloying elements, suppliers, etc. A literary study was carried out in order to identify materials that had UTS and KIC more than or equal to 1700 MPa and 70 MPa*m^1/2, respectively. Materials that fulfilled these criteria were T250 grade maraging steel, Cobalt free maraging steel, High cobalt maraging steel, 300 grade maraging steel, AerMet 100, AF1410, S53, M54, 300M, 4340M and PremoMet. These were categorized into maraging steels, high alloy secondary hardened steels, and low alloy steels, and were then further researched. The material with the highest combination of UTS and KIC was M54 followed by AerMet 100; while AF1410 had the highest KIC but a low UTS, and PremoMet had the highest UTS but a low KIC. Maraging steels and HASH steels have a similar price range, while low alloy steels are much cheaper.
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Volec, Martin. "Malá vrtná souprava pro vrtání studní." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232188.

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The aim of this thesis is the structural design small drilling rigs for drilling wells. Drilling rig will be used for drilling wells up to 200 mm diameter rotary drilling technology with irrigation water. The first part is a literature search of small drilling rigs. In the second part, then custom design a small drilling rig.
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Davidson, Sean R. H. "Heat transfer in bone during drilling." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0002/MQ46070.pdf.

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Maštera, Lukáš. "Koncepce vysokorychlostní vrtné hlavy pro odběr vzorků hornin." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443237.

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THE THESIS FOCUSES ON A CONSTRUCTION DESIGN OF A NEW DRILLING HEAD DESIGNED TO REPLACE THE ORIGINAL ONE IN A MULTIDRILL HYNDAGA DRILLING RING. THE SUBSTITUTION IS SUPPOSED TO PROVIDE A SOLUTION TO THE SHORTCOMINGS OF THE CURRENTLY USED DRILLING HEAD. THE THESIS ANALYSES PARAMETERS OBTAINED FROM THE MANUFACTURER, NEW PRODUCTION REQUIREMENTS AND PROPOSES TWO TYPES OF MOTORS INNOVATIVE METHODS HAD BEEN IMPLEMENTED IN CALCULATIONS OF CONCEPTUAL PARAMETERS OF THE NECESSARY COMPONENTS. THE OUTCOME IS A NEW F-TYPE DRILLING HEAD.
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Leden, Pavel. "Výroba tělesa pro klíčový zámek." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229935.

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The diploma thesis is focused on the production of body for cylinder locks. This is production of very small and accurate parts. In the first part there is described the function of the lock, the sort of cylinder locks, their components and the basic types of safety elements. The second part is focused on the production of given type of body. The thesis deals with either existing production technology or proposals of possible innovation. This firstly consists in new organization of manufacturing operations. At the close we can find comparison of existing technology and new proposal.
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Apak, Esat Can. "A Study On Heat Transfer Iside The Wellbore During Drilling Operations." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608048/index.pdf.

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Analysis of the drilling fluid temperature in a circulating well is the main objective of this study. Initially, an analytical temperature distribution model, which utilizes basic energy conservation principle, is presented for this purpose. A computer program is written in order to easily implement this model to different cases. Variables that have significant effect on temperature profile are observed. Since the verification of the analytical model is not probable for many cases, a computer program (ANSYS) that uses finite element method is employed to simulate different well conditions. Three different wells were modeled by using rectangular FLOTRAN CFD element that has four nodes. Maximum drilling fluid temperature data corresponding to significant variables is collectedfrom these models. This data is then used to develop an empirical correlation in order to determine maximum drilling fluid temperature. The proposed empirical correlation can estimate the temperature distribution within the wellbore with an average error of less than 16%, and maximum drilling fluid temperature with an average error of less than 7 %.
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Jin, Kenichiro 1979. "Thermal analysis of directional drilling tool in high heat flux environment." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/89354.

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Maani, Nazanin. "A MODEL FOR THE PREDICTION OF THERMAL RESPONSE OF BONE IN SURGICAL DRILLING." OpenSIUC, 2013. https://opensiuc.lib.siu.edu/theses/1245.

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This Thesis develops a mathematical model for predicting the thermal response in the surgical drilling of bone. The model accounts for the bone, chip and drill bit interactions by providing a detailed account of events within a cylindrical control volume enveloping the drill, the cut bone chip within the drill bit flute and the solid bone. Lumped parameter approach divides the control volume into a number of cells and cells within the sub-volumes representing the drill solid, the bone chip and the bone solid are allowed to interact. The contact mechanics of rough surfaces is used to model chip-flute and chip-bone frictional interaction. In this way not only the quantification of friction due to sliding contact of chip-flute and chip-bone rough surface contact are treated, but also the contact thermal resistances between the rubbing surfaces are included in the model. A mixed combination of constant and adaptive mesh is employed to permit the simulation of the heat transfer as the drill bit penetrates deeper into the bone during a drilling process. Using the model the effect of various parameters on the temperature rise in bone, drill and the chip are investigated. It is found that maximum temperature within the bone occurs at the location adjacent to the corner of the drill-tip and drill body. The results of the model are found to agree favorably with the experimental measurements reported in the existing literature on surgical drilling.
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Santoyo-Gutierrez, Edgar Rolando. "Transient numerical simulation of heat transfer processes during drilling of geothermal wells." Thesis, University of Salford, 1997. http://usir.salford.ac.uk/14689/.

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The transient thermal history of a well drilling system has been identified as one of the main problems that the geothermal well drilling industry needs to solve. In particular, the estimation of temperatures, in and around a geothermal well during drilling (circulation) and shut-in (thermal recovery) conditions, is required. To overcome this problem, a computer simulator (WELLTHER) has been developed which uses a direct solution method to solve the finite difference equations describing the transient heat transfer processes in a wellbore during drilling and shut-in operations in the presence of the lost circulation to the formation. The new computer simulator uses a numerical model to account for the transient convective heat transfer in the formation surrounding a well, due to lost circulation. This feature of the present simulator is important, since previous wellbore simulators consider the heat transfer process in the formation (rock) as a merely conductive problem. The WELLTHER simulator is capable of accounting for these losses at any point in the well and it has been applied to the study of several Mexican geothermal wells. The results show that the effect of lost circulation on the shut-in temperature profiles can be reproduced satisfactorily. Likewise, a parametric analysis, carried out using the simulator, indicates that a number of assumptions made in previous numerical models are invalid and that certain factors ignored in previous models have a significant effect on the dynamic wellbore temperature distribution. Finally, a coupling of the new simulator with another computer code (STATIC TEMP) can be used as a tool to infer more reliably the static formation temperatures in geothermal systems.
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Books on the topic "The drilling head"

1

Davidson, Sean R. H. Heat transfer in bone during drilling. Ottawa: National Library of Canada, 1999.

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Sachs, Harvey M. Geology and drilling methods for ground-source heat pump installations: An introduction for engineers. Atlanta, Ga: ASHRAE, 2002.

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Investigations, United States Congress House Committee on Interior and Insular Affairs Subcommittee on General Oversight and. Relationship between offshore oil drilling and the proposed Pacific Palisades onshore drilling project: Oversight hearing before the Subcommittee on General Oversight and Investigations of the Committee on Interior and Insular Affairs, House of Representatives, One Hundredth Congress, second session ... hearing held in Santa Monica, CA, October 24, 1988. Washington: U.S. G.P.O., 1989.

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International Symposium on Offshore Engineering (5th 1985 Federal University of Rio de Janeiro). Offshore engineering, volume 5: Proceedings of the 5th International Symposium on Offshore Engineering held at COPPE, Federal University of Rio de Janeiro, Brazil, September 1985. London: Pentech Press, 1986.

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United States. Congress. House. Committee on Interior and Insular Affairs. Subcommittee on Energy and the Environment. Oil and gas operations in the Allegheny National Forest, northwestern Pennsylvania: Oversight hearing before the Subcommittee on Energy and the Environment of the Committee on Interior and Insular Affairs, House of Representatives, One Hundred Second Congress, first session ... hearing held in Pittsburgh, PA, September 6, 1991. Washington: U.S. G.P.O., 1992.

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United, States Congress House Committee on Interior and Insular Affairs Subcommittee on Water Power and Offshore Energy Resources. Review of offshore oil and gas programs and laws: Hearing before the Subcommittee on Water, Power, and Offshore Energy Resources of the Committee on Interior and Insular Affairs, House of Representatives, One Hundred First Congress, first session, on oversight on effectiveness of the current offshore drilling ... H.R. 2945 ... hearing held in Key West, Fl, October 14, 1989. Washington: U.S. G.P.O., 1989.

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Institution of Civil Engineers (Great Britain), ed. UK offshore, maintaining self-sufficiency: Proceedings of the Conference on UK Offshore : Maintaining Self-Sufficiency organized by the Institution of Civil Engineers and held in London on 9-10 October 1985. London: T. Telford, 1986.

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Subsea International '93 (1993 Aberdeen, Scotland). Subsea International '93: Low cost subsea production systems : papers presented at a conference sponsored by the Society for Underwater Technology and held in Aberdeen, UK, April 28-29, 1993. Dordrecht: Kluwer Academic, 1993.

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Conference on Downhole Production and Subsea Processing (1998 Aberdeen, Scotland). Conference on Downhole Production and Subsea Processing: Technical, business, and environmental solutions for the industry : papers presented at the Downhole Production and Subsea Processing Conference, organized and sponsored by BHR Group Limited, held in Aberdeen, UK, on 3 November 1998. Bury St Edmunds, Suffolk, UK: Professional Engineering Pub., 1998.

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United States. Congress. House. Committee on Interior and Insular Affairs. Subcommittee on Energy and the Environment. Outer continental shelf: Oversight hearings before the Subcommittee on Energy and the Environment of the Committee on Interior and Insular Affairs, House of Representatives, Ninety-ninth Congress, first session, on outer continental shelf, hearings held in Washington, DC, May 14 and 16, 1985. Washington: U.S. G.P.O., 1986.

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Book chapters on the topic "The drilling head"

1

Pierce, Todd P., Julio J. Jauregui, Jeffrey J. Cherian, Randa K. Elmallah, and Michael A. Mont. "Successful Decompression with Multiple Percutaneous Drilling." In Osteonecrosis of the Femoral Head, 27–31. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-50664-7_3.

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G., Mousavi Said, Gagnol Vincent, and Ray Pascal. "Integration of Drill Torsional-Axial Coupling in a Global Spindle-Self Vibratory Drilling Head Model." In Lecture Notes in Mechanical Engineering, 81–88. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-37143-1_10.

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Bakhtiarinejad, Mahsan, Farshid Alambeigi, Alireza Chamani, Mathias Unberath, Harpal Khanuja, and Mehran Armand. "A Biomechanical Study on the Use of Curved Drilling Technique for Treatment of Osteonecrosis of Femoral Head." In Computational Biomechanics for Medicine, 87–97. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-15923-8_7.

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Gerken, J. F., and D. Biermann. "Concept of a Mechatronic System for Targeted Drill Head Direction and Angular Alignment Control in BTA Deep Hole Drilling." In Lecture Notes in Production Engineering, 215–24. Berlin, Heidelberg: Springer Berlin Heidelberg, 2020. http://dx.doi.org/10.1007/978-3-662-62138-7_22.

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Brown, Donald W., David V. Duchane, Grant Heiken, and Vivi Thomas Hriscu. "Planning and Drilling of the Phase II Boreholes." In Mining the Earth's Heat: Hot Dry Rock Geothermal Energy, 237–312. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-540-68910-2_5.

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Brown, Donald W., David V. Duchane, Grant Heiken, and Vivi Thomas Hriscu. "Phase I Drilling and Initial Attempts to Establish Hydraulic Communication." In Mining the Earth's Heat: Hot Dry Rock Geothermal Energy, 43–150. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-540-68910-2_3.

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Hao, Shu-Qing. "Coupling Thermal–Fluid–Solid Modeling of Drilling Fluid Seepage into Coal Seam Borehole for Co2 Sequestration." In Advances in Heat Transfer and Thermal Engineering, 727–31. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-4765-6_126.

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Bhargavi, Y., and V. Diwakar Reddy. "Dimensional Analysis of Form Drilling Parameters by Buckingham Pi Theorem and Optimization of Heat Generation in Form Drilling Process by Taguchi." In Intelligent Manufacturing and Energy Sustainability, 633–44. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-1616-0_61.

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Vinoth Babu, K., S. Suresh Kumar, P. Ganesan, S. Marichamy, and D. Madan. "Fabrication, Characterization and Parametric Optimization on Drilling of Heat-Treated A356-SiCp Composites." In Lecture Notes in Mechanical Engineering, 827–38. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-4739-3_72.

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Vinoth Babu, K., S. Prathap Singh, S. Marichamy, P. Ganesan, and M. Uthayakumar. "Optimization of Drilling Process in Heat-Treated Al–20% SiC Functionally Graded Composite Using Grey Relational Analysis." In Lecture Notes in Mechanical Engineering, 455–64. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-3631-1_44.

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Conference papers on the topic "The drilling head"

1

Dugas, J. J. "Improvement in Drilling Efficiency With Performance Power Head Section Motors." In IADC/SPE Drilling Conference. Society of Petroleum Engineers, 1994. http://dx.doi.org/10.2118/27517-ms.

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Taylor, Nick, Juan Guevara, and Cedric Sabine. "A New Electronic Firing Head for Slickline Explosive Services." In SPE/IADC Middle East Drilling Technology Conference. Society of Petroleum Engineers, 2001. http://dx.doi.org/10.2118/72325-ms.

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Zurdo, C., D. Gazaniol, D. Grepinet, J. Ybert, and R. Rodrigano. "The Economical and Technical Advantages of Low Head Drilling of Depleted Reservoirs With Aerated Mud: A Case History Offshore Angola." In SPE/IADC Drilling Conference. Society of Petroleum Engineers, 1997. http://dx.doi.org/10.2118/37608-ms.

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Stolboushkin, E., J. Gilliat, P. Hillis, and S. Zuklic. "Successful Deployment of Electro-Hydraulic TCP Firing Head Improves Safety and Reduces Rig-Time." In SPE Deepwater Drilling and Completions Conference. Society of Petroleum Engineers, 2016. http://dx.doi.org/10.2118/180290-ms.

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Manacorda, Guido, Mario Miniati, Alessandro Simi, Rodolfo Guidi, Simone Lelli, Daniele Vacca, Devis Dei, et al. "A bore-head GPR for horizontal directional drilling (HDD) equipment." In 15th International Conference on Ground-Penetrating Radar (GPR) 2014. IEEE, 2014. http://dx.doi.org/10.1109/icgpr.2014.6970526.

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Wei, Jiang. "Technique for Close Cluster Well Head Concentrated High Quality and High Speed Drilling Cementing Surface Interval in Sz36-1d." In IADC/SPE Asia Pacific Drilling Technology. Society of Petroleum Engineers, 2000. http://dx.doi.org/10.2118/62776-ms.

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Kling, R., M. Dijoux, L. Romoli, F. Tantussi, J. Sanabria, and E. Mottay. "Metal micro drilling combining high power femtosecond laser and trepanning head." In SPIE LASE, edited by Udo Klotzbach, Yongfeng Lu, and Kunihiko Washio. SPIE, 2013. http://dx.doi.org/10.1117/12.2002083.

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Hannegan, Don, Tom Bailey, and James Chambers. "Subsea Rotating Control Head Shop Testing - A Key Step to Assure Subsea Reliability." In IADC/SPE Asia Pacific Drilling Technology Conference and Exhibition. Society of Petroleum Engineers, 2004. http://dx.doi.org/10.2118/88000-ms.

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Manacorda, Guido, Mario Miniati, Stefania Bracciali, Devis Dei, Howard F. Scott, Elmar Koch, Dave Pinchbeck, and Sylvain Murgier. "Development of a bore-head GPR for Horizontal Directional Drilling (HDD) equipment." In 2010 13th International Conference on Ground Penetrating Radar (GPR 2010). IEEE, 2010. http://dx.doi.org/10.1109/icgpr.2010.5550228.

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Mousavi, Said, Vincent Gagnol, and Pascal Ray. "Integration of Drill Torsional-Axial Coupling in Spindle-Vibratory Drilling Head Model for Stability Analysis." In ASME 2013 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/detc2013-12049.

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Abstract:
The drilling of deep holes with small diameters remains an unsatisfactory technology, since its productivity is rather limited. The main limit to an increase in productivity is directly related to the poor chip evacuation, which induces frequent tool breakage and poor surface quality. Retreat cycles and lubrication are common industrial solutions, but they induce productivity and environmental drawbacks. An alternative response to the chip evacuation problem is the use of a vibratory drilling head, which enables the chips to be fragmented thanks to the axial self-excited vibration. Contrary to conventional machining processes, axial drilling instability is sought, thanks to an adjustment of head design parameters and appropriate conditions of use. In this paper, self-vibratory cutting conditions are established through a specific stability lobes diagram. A dynamic high-speed spindle / drilling head / tool system model is elaborated on the basis of rotor dynamics predictions. The model-based tool tip FRF is integrated into an analytical stability approach. The torsional-axial coupling of the twist drill is investigated and consequences on drilling instability are established. Specific stability lobes are established and indicate modifications of self-excited operating zones. This approach allows refining the stability prediction of the global system during a drilling operation.
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Reports on the topic "The drilling head"

1

Guidati, Gianfranco, and Domenico Giardini. Joint synthesis “Geothermal Energy” of the NRP “Energy”. Swiss National Science Foundation (SNSF), February 2020. http://dx.doi.org/10.46446/publication_nrp70_nrp71.2020.4.en.

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Near-to-surface geothermal energy with heat pumps is state of the art and is already widespread in Switzerland. In the future energy system, medium-deep to deep geothermal energy (1 to 6 kilometres) will, in addition, play an important role. To the forefront is the supply of heat for buildings and industrial processes. This form of geothermal energy utilisation requires a highly permeable underground area that allows a fluid – usually water – to absorb the naturally existing rock heat and then transport it to the surface. Sedimentary rocks are usually permeable by nature, whereas for granites and gneisses permeability must be artificially induced by injecting water. The heat gained in this way increases in line with the drilling depth: at a depth of 1 kilometre, the underground temperature is approximately 40°C, while at a depth of 3 kilometres it is around 100°C. To drive a steam turbine for the production of electricity, temperatures of over 100°C are required. As this requires greater depths of 3 to 6 kilometres, the risk of seismicity induced by the drilling also increases. Underground zones are also suitable for storing heat and gases, such as hydrogen or methane, and for the definitive storage of CO2. For this purpose, such zones need to fulfil similar requirements to those applicable to heat generation. In addition, however, a dense top layer is required above the reservoir so that the gas cannot escape. The joint project “Hydropower and geo-energy” of the NRP “Energy” focused on the question of where suitable ground layers can be found in Switzerland that optimally meet the requirements for the various uses. A second research priority concerned measures to reduce seismicity induced by deep drilling and the resulting damage to buildings. Models and simulations were also developed which contribute to a better understanding of the underground processes involved in the development and use of geothermal resources. In summary, the research results show that there are good conditions in Switzerland for the use of medium-deep geothermal energy (1 to 3 kilometres) – both for the building stock and for industrial processes. There are also grounds for optimism concerning the seasonal storage of heat and gases. In contrast, the potential for the definitive storage of CO2 in relevant quantities is rather limited. With respect to electricity production using deep geothermal energy (> 3 kilometres), the extent to which there is potential to exploit the underground economically is still not absolutely certain. In this regard, industrially operated demonstration plants are urgently needed in order to boost acceptance among the population and investors.
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Taylor, A. Continental drilling in Canada: drilling technology and borehole studies, comments on a meeting held October 23, 1985. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1985. http://dx.doi.org/10.4095/315248.

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Finger, J. T., W. N. Sullivan, R. D. Jacobson, and K. G. Pierce. Systems study of drilling for installation of geothermal heat pumps. Office of Scientific and Technical Information (OSTI), September 1997. http://dx.doi.org/10.2172/544723.

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