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Articoli di riviste sul tema "Oil well drilling"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 29 luglio 2024

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1

Della Nave, Esteban, and Eduardo Natalio Dvorkin. "On the modeling of oil well drilling processes." Engineering Computations 32, no. 2 (April 20, 2015): 387–405. http://dx.doi.org/10.1108/ec-03-2013-0093.

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Purpose – The purpose of this paper is to present the development of a simulator of oil well drilling processes. Design/methodology/approach – The simulator incorporates the main variables that are used by drilling engineers in the definition of the drilling processes. The code is useful a priori, in the design of a drilling process, as a tool for comparing different design options and predicting their results and a posteriori of a failure to understand its genesis and therefore provide know-why to improve the drilling techniques. Findings – The developed finite element simulator uses a co-rot

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2

Ovchinnikov, P. V., and A. S. Syrchina. "Optimization methods for well designs, drilling and well completion technologies." Proceedings of higher educational establishments. Geology and Exploration, no. 5 (December 13, 2023): 22–32. http://dx.doi.org/10.32454/0016-7762-2023-65-5-22-32.

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Background. The task of increasing the efficiency of well construction, reducing the labor- and financial costs involved, and achieving the maximum operational characteristics of oil and gas wells requires the application of the most recent technologies and technological solutions for well drilling and well completion.Aim. Review and analysis of the implementation and development of promising technologies for well drilling and well completion in the Russian Federation to identify those capable of optimizing well designs, improving the efficiency of technological processes for drilling and comp

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3

Carpenter, Chris. "Expertise in Complex-Well Construction Leveraged for Geothermal Wells." Journal of Petroleum Technology 75, no. 05 (May 1, 2023): 87–89. http://dx.doi.org/10.2118/0523-0087-jpt.

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_ This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper SPE 204097, “Constructing Deep Closed-Loop Geothermal Wells for Globally Scalable Energy Production by Leveraging Oil and Gas Extended-Reach Drilling and High-Pressure/High-Temperature Well-Construction Expertise,” by Eric van Oort, SPE, Dongmei Chen, SPE, and Pradeepkumar Ashok, SPE, The University of Texas at Austin, et al. The paper has not been peer reviewed. _ In the complete paper, deep closed-loop geothermal systems (DCLGS) are introduced as an alternative to traditional enhanced geothermal sy

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4

ON, Shemelina. "Constructing a Heavy Oil Well." Petroleum & Petrochemical Engineering Journal 6, no. 1 (2022): 1–6. http://dx.doi.org/10.23880/ppej-16000300.

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The article presents a description of the designs of wells intended for the production of high-viscosity oil. The main problems associated with the planning and deployments of architecture, construction of high-viscosity oil wells are described. World experience in well construction is presented. Vertical wells are usually used for primary cold production and cyclic steam or steam flooding processes. On the other hand, increased reservoir contact may require deviated, horizontal, or multilateral wells. In the case of steam-assisted gravity drainage (SAGD) and some solvent injection processes,

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5

Deryaev, A. R. "Well trajectory management and monitoring station position borehole." SOCAR Proceedings, SI2 (December 31, 2023): 1–6. http://dx.doi.org/10.5510/ogp2023si200870.

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The article analyzes the selection and recommendations, as well as instructions for drilling deep directional and horizontal wells, electric drilling methods in the Western part of the oil and gas fields of Turkmenistan in order to increase oil and gas production from productive layers of the horizons of the red-colored strata. To analyze the choice of drilling deep directional and horizontal wells, materials of previously operated wells, geological and operational characteristics of deposits and the guidance document «Operating Instructions for oil and gas wells», as well as safety rules in t

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6

Fan, Sen, Yue Xiang Li, Jin Qiang Cao, and Jian Bo Xie. "Optimization Technique in Double Stepped Thin Horizontal Well." Advanced Materials Research 734-737 (August 2013): 1226–29. http://dx.doi.org/10.4028/www.scientific.net/amr.734-737.1226.

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Oil industry at home and abroad has paid attention to the usage of horizontal well with the development of horizontal drilling technology, the number of horizontal well is increasing year by year inland, but some horizontal well constructions in thin oil pay is not ideal. Nanzhong 1H well has used double stepped horizontal well technology to develop thin oil pay, it has optimized the constructions in different stages and combined the steering technique in the drilling practice of thin oil pay, it has accelerated the drilling speed and reached the target fast and safely. It provides the referen

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7

Deryaev, Annaguly. "Engineering aspects and improvement of well drilling technologies at the Altyguyi field." Naukovij žurnal «Tehnìka ta energetika» 15, no. 2 (April 30, 2024): 9–20. http://dx.doi.org/10.31548/machinery/2.2024.09.

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The relevance of the research is justified by the rapid development of the oil industry, which requires constant improvement of methods and equipment to increase extraction efficiency and reduce environmental impact. The aim of this study is to enhance the current engineering aspects of drilling in the Altyguyi field while considering increased productivity and reduced environmental impact. Among the methods used, it is necessary to mention the synthesis method, abstraction method, generalization method, induction method, deduction method, classification method, and others. This study examines

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8

Dotsenko, V. A. "Assembly of PND oil-well drilling equipment." Chemical and Petroleum Engineering 32, no. 6 (November 1996): 559–62. http://dx.doi.org/10.1007/bf02416677.

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9

Gaurina-Međimurec, Nediljka, Borivoje Pašić, and Petar Mijić. "Risk Planning and Mitigation in Oil Well Fields." International Journal of Risk and Contingency Management 4, no. 4 (October 2015): 27–48. http://dx.doi.org/10.4018/ijrcm.2015100103.

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Lost circulation presents one of the major risks associated with drilling. The complete prevention of lost circulation is impossible but limiting circulation loss is possible if certain precautions are taken. Industry experience has proved that is often easier and more effective to prevent the occurrence of loss than to attempt to stop or reduce them once they have started. The problem of lost circulation was magnified considerably when operators began drilling deeper and/or depleted formations. A strategy for successful management of lost circulation should include preventative (best drilling

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10

Abd Alhaleem, Ayad, Safaa Husain Sahi, and Amel Habeeb Assi. "Bit Performance in Directional Oil Wells." Journal of Engineering 21, no. 11 (November 1, 2015): 80–93. http://dx.doi.org/10.31026/j.eng.2015.11.05.

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This work aims to analyze and study the bit performance in directional oil wells which leads to get experience about the drilled area by monitoring bit performance and analyzing its work. This study is concerned with Rumaila Oil Field by studying directional hole of one oil well with different angles of inclination. Drilling program was used in order to compare with used parameters (WOB, RPM and FR).in those holes. The effect of the drilling hydraulic system on the bit performance was studied as well as the hydraulic calculation can be done by using Excel program. This study suggests method wh

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11

Dmitrievsky, A. N., N. A. Eremin, A. D. Chernikov, and S. О. Borozdin. "Intelligent Complication Prevention Systems for Safe Well Construction." Occupational Safety in Industry, no. 6 (June 2022): 7–13. http://dx.doi.org/10.24000/0409-2961-2022-6-7-13.

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The results of many years of research on the prevention of complications in the construction of oil and gas wells using machine learning methods are presented in the article. The issues of creating prototypes of intelligent systems to prevent complications when drilling wells on land and offshore are considered. The purpose of the intelligent systems to prevent complications during well drilling is to warn the driller in advance about the possibility of a violation of the regular drilling regime. Intelligent systems for preventing complications during well construction help to increase the eco

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12

Сарқұлова, Ж. С., А. С. Куанышева, Н. Б. Қаржаубай, and А. Т. Қазыбек. "Innovations in drilling and modern well cleaning technologies." Горный журнал Казахстана, no. 11(223) (December 6, 2023): 47–51. http://dx.doi.org/10.48498/minmag.2023.223.11.004.

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«Ұңғымаларды Бұрғылаудағы инновациялар және мұнайды тазарту технологиялары: Тұрақты энергияға жол» мақаласы мұнай-газ өнеркәсібінде мұнай мен газ өндірудің тиімділігін арттыру, сондай-ақ қоршаған ортаға әсерді азайту үшін қолданылатын заманауи әдістер мен технологияларды зерттейді. Мақалада көлденең бұрғылау, көп ұңғыма платформалары, бұрғылау машиналарын Автоматтандыру және IT технологияларын пайдалану сияқты инновациялар қарастырылады. Ұңғымаларды бұрғылау мен мұнайды өңдеудің заманауи тенденцияларына шолу жасалады, олардың тұрақты энергияға жету жолындағы маңыздылығын көрсетеді. Мақала соны

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13

Yang, Guangyao. "Research on well selection and layer selection methods for tapping the remaining oil at the top of thick oil layers using ultra-short radius lateral drilling horizontal wells." E3S Web of Conferences 352 (2022): 01050. http://dx.doi.org/10.1051/e3sconf/202235201050.

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The flexible drilling method of ultra-short radius sidetrack horizontal wells is an effective method to utilize the remaining oil at the top of thick oil reservoirs. By analyzing the current status of the SZ oilfield well network, development stage and sand body development characteristics, combined with the characteristics of ultra-short radius lateral drilling horizontal well technology, the areas and formations suitable for ultra-short radius lateral drilling horizontal well tapping are identified, and the criteria for selecting wells and formations for ultra-short radius lateral drilling h

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14

Mahammad Shirinov, Mahammad Shirinov, Sabir Gurbanov Sabir Gurbanov, and Ramil Zamanlı Ramil Zamanlı. "A COMPREHENSİVE APPROACH TO THE COMPLETİON OF HORİZONTAL AND MULTİLATERAL WELLS." PAHTEI-Procedings of Azerbaijan High Technical Educational Institutions 25, no. 02 (February 20, 2023): 103–11. http://dx.doi.org/10.36962/pahtei25022023-103.

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At the heart of any new technology is the desire to reduce the cost of each produced barrel of oil equivalent. New potential opportunities for a significant improvement in the economics of drilling are opened up by the Multilateral Well Drilling Technology. More recently, through the joint efforts of design, development and implementation groups of service companies and operators, multilateral drilling technology has become a new cost-effective method of well completion.In this section of Multilateral Drilling Technologies, we would like to demonstrate how, with the introduction of advanced in

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15

Zhang, Hui, De Li Gao, and Wen Sheng Liu. "Risk Assessment of Extended Reach Well Based on Gray Matter-Element." Advanced Materials Research 361-363 (October 2011): 386–92. http://dx.doi.org/10.4028/www.scientific.net/amr.361-363.386.

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Drilling is one of the major means for oil and gas exploration and development. Extended reach wells (ERWs) are defined as directional wells or horizontal wells with horizontal displacement (HD) to vertical depth (VD) ratio greater than or equal to 2. Extended reach drilling (ERD) confronted many technical difficulties. Risk analysis of ERD before drilling is of great significance for preventing complex accidents during drilling operations, improving the drilling rate and efficiency. Based on gray matter-element theory, this paper established a comprehensive risk assessment model for ERD opera

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16

Oladiran Kayode Olajiga, Nwankwo Constance Obiuto, Riliwan Adekola Adebayo, and Igberaese Clinton Festus-Ikhuoria. "SMART DRILLING TECHNOLOGIES: HARNESSING AI FOR PRECISION AND SAFETY IN OIL AND GAS WELL CONSTRUCTION." Engineering Science & Technology Journal 5, no. 4 (April 10, 2024): 1214–30. http://dx.doi.org/10.51594/estj.v5i4.1013.

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This paper explores the integration of AI in smart drilling technologies, examining its applications, benefits, challenges, and future prospects. By harnessing the power of AI, smart drilling technologies enable proactive decision-making, automation, and optimization throughout the drilling lifecycle. From well planning and design to real-time monitoring and control, AI-driven systems improve operational performance, reduce risks, and maximize resource recovery. Despite facing challenges such as data integration, technology adoption, and regulatory compliance, the potential benefits of smart d

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17

Sultanova, Arzu V., and Ramil M. Mammadov. "About impact of clogging phenomena on well productivity." Nafta-Gaz 79, no. 1 (January 2023): 20–27. http://dx.doi.org/10.18668/ng.2023.01.03.

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"During the opening of a productive formation by drilling, penetration of clay particles from the drilling fluid into the leading filtration channels of the rock occurs. As a rule, productive formations are opened at pressures that are significantly higher than the formation pressure. The amount of hydrostatic repression depends on the density of the drilling fluid, the height of the liquid column, and the reservoir pressure. A classic example of the latter is the problem of studying changes in reservoir properties that occur at the drilling stage, where relatively small particles of drilling

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18

Aksenova, Natalya. "Experience of the silicate reagents in oil and gas well drilling use." E3S Web of Conferences 515 (2024): 01005. http://dx.doi.org/10.1051/e3sconf/202451501005.

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The article presents the analysis of incidents occurred while production drilling and side track drilling at the Samotlor field during the period from 2012 to 2023 and the relevance sticking problem occurrence with amount to more than 40%. The reason for the sticking in 90% of cases is the discrepancy between the drilling mud properties and the drilling well geological and technical condition. To prevent sticking the authors propose the boron-silicate solution (BSS) and its analogues use in the composition of drilling washing liquids. The BSS in well drilling high efficiency use is shown. Due

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19

Rafiq Ibrahimov, Leyla Afandiyeva, Rafiq Ibrahimov, Leyla Afandiyeva, and Iqrar Safixanov Iqrar Safixanov. "CONTROL OF ANNULAR MANIFESTATIONS AFTER CASING CEMENTING AND DURING WELL OPERATION." PAHTEI-Procedings of Azerbaijan High Technical Educational Institutions 28, no. 05 (April 14, 2023): 24–30. http://dx.doi.org/10.36962/pahtei28052023-24.

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The article shows that small craters are formed on the territory of mud volcanoes, through which a gaseous agent, and in some cases oil-contaminated agent, comes to the surface. The formation of the griffin in the Azerbaijan oil industry took place in the initial period of the development of Gala, Garachukhur, Puta, Lokbatan and other areas. At present, griffin formation occurs when drilling wells in the oil fields Dashlari, Kum-Deniz, Mishovdag and Kurovdag. It can be found in other areas as well. The most likely main causes of griffon formation are gas flows that occur after casing cementing

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20

Alkalbani, Alhaitham M., and Girma T. Chala. "A Comprehensive Review of Nanotechnology Applications in Oil and Gas Well Drilling Operations." Energies 17, no. 4 (February 7, 2024): 798. http://dx.doi.org/10.3390/en17040798.

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The field of nanotechnology has shown promise in addressing major problems and improving drilling effectiveness. An overview of the difficulties encountered during oil and gas well drilling operations and the demand for creative solutions opens the debate. This review explores how nanotechnology is transforming the oil industry and enhancing performance as a whole. The evaluation of the uses of nanotechnology for better oil recovery, real-time monitoring, innovative materials, drilling fluids, and reservoir characterization are extensively discussed in this review. The primary function of addi

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21

Santos, Nara Brandão Costa, Flávia Marques Fagundes, Fábio de Oliveira Arouca, and João Jorge Ribeiro Damasceno. "Sedimentation of solids in drilling fluids used in oil well drilling operations." Journal of Petroleum Science and Engineering 162 (March 2018): 137–42. http://dx.doi.org/10.1016/j.petrol.2017.12.026.

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22

Yan, Chuanliang, Jingen Deng, Baohua Yu, Lianbo Hu, Zijian Chen, Hai Lin, and Xiaorong Li. "Fracturing Pressure in Oil and Gas Well Drilling." Research Journal of Applied Sciences, Engineering and Technology 5, no. 19 (May 10, 2013): 4775–79. http://dx.doi.org/10.19026/rjaset.5.4318.

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23

Han, Guo You, Xi Sheng Zhang, and Xiu Hua Du. "The Application of BOP During Oil Well Drilling." Advanced Materials Research 1094 (March 2015): 419–22. http://dx.doi.org/10.4028/www.scientific.net/amr.1094.419.

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This is an introduction to brief application of blowout preventers and accessory equipment. Fluid (either liquid or gas) erupts from the well, usually with great force, and often ignites into a roaring inferno, especially if the fluid is gas. The trouble arises when the pressure in the formation is higher than that in the well. The pressure in the well is maintained by the type and amount of drilling fluid being circulated through it. Blowout preventers(BOPs), in conjunction with other equipment and techniques, are used to close the well in and allow the crew to control a kick before it become

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24

Pavlovskaya, A. V., and O. A. Serebro. "Innovation effectiveness in oil and gas well drilling." Problems of Economics and Management of Oil and Gas Complex, no. 5 (2018): 21–26. http://dx.doi.org/10.30713/1999-6942-2018-5-21-26.

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Rommetveit, Rolv, and Anette Blyberg. "Simulation of gas kicks during oil well drilling." Modeling, Identification and Control: A Norwegian Research Bulletin 10, no. 4 (1989): 213–25. http://dx.doi.org/10.4173/mic.1989.4.3.

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Spanos, P. D., A. M. Chevallier, N. P. Politis, and M. L. Payne. "Oil and Gas Well Drilling: A Vibrations Perspective." Shock and Vibration Digest 35, no. 2 (March 1, 2003): 85–103. http://dx.doi.org/10.1177/0583102403035002564.

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Yershiyev, K. T., М. S. Kurbanbekov, B. T. Umraliyev, A. B. Izmukhanbetov, and A. O. Jakiyeva. "Casing while drilling technology." Azerbaijan Oil Industry, no. 01 (January 15, 2024): 17–22. http://dx.doi.org/10.37474/0365-8554/2024-01-17-22.

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The article explores advancements in the drilling well industry, highlighting continual improvements in the well construction cycle. It encompasses the evolution from initial steps like rig setup and drilling to the final stages of well commissioning. The paper emphasizes recent developments such as innovative drilling fluids, drill bits with diamond cutting elements for varying rock hardness, and advanced top drive systems. These enhancements have synergistically led to significant progress in drilling outcomes. The transition from traditional vertical and directional wells to sophisticated,

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Gao, Dewei, Jiajun Xie, Shengming Huang, Shenyao Wu, Pengcheng Wu, and Weian Huang. "Research and Application of Evaluation Methods for Functional Characteristics of Oil-Based Drilling Fluid in Shale Gas Wells." Geofluids 2021 (March 16, 2021): 1–9. http://dx.doi.org/10.1155/2021/8814032.

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Intelligent unconventional reservoir optimal production control technology is a comprehensive technology, involving geology, reservoir simulation, and efficient drilling and completion. Efficient drilling and completion provides a flow channel for unconventional oil and gas exploitation and a wellbore with good integrity for reservoir transformation, which is an important link in the efficient development of unconventional oil and gas. The application of industry standard method to evaluate the performance of oil-based drilling fluid has the problem of poor correlation. It cannot reflect the d

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Dmitrievsky, A. N., N. A. Eremin, A. D. Chernikov, and L. I. Zinatullina. "USING ARTIFICIAL INTELLIGENCE METHODS TO PREVENT COMPLICATIONS IN WELL CONSTRUCTION." News of the Tula state university. Sciences of Earth 4, no. 1 (2021): 132–44. http://dx.doi.org/10.46689/2218-5194-2021-4-1-132-144.

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The article discusses the use of automated systems for preventing emergency situa-tions in the process of well construction using artificial intelligence methods to increase the productive time of well construction by reducing the loss of working time to eliminate compli-cations. Key words: problems and complications during drilling, emissions, gas and oil water showings, stuck, artificial neural networks, digitalization, drilling, well, field, oil and gas blockchain, artificial intelligence, machine learning methods, geological and technological research, neural network model, oil and gas con

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Maratovna, Sadikova Adalat, and Artikova Gulnoza Arislan Qizi. "EXPANSION OIL WELL CEMENT BASED ON SUBSTANDARD RAW MATERIALS." American Journal of Applied Science and Technology 03, no. 06 (June 1, 2023): 26–29. http://dx.doi.org/10.37547/ajast/volume03issue06-06.

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Grouting cement is a type of Portland cement designed to insulate pipes of oil and gas wells and protect them from groundwater pressure, shifts of ground layers, and the negative effects of aggressive media. When solidified, the cement mortar forms a monolithic jacket, impermeable to liquids and gases. The material adheres firmly to the metal pipe and to the walls of the trunk drilled in the rock. The use of grouting cement creates conditions for safe operation of wells and prolongs their working period. In traditional construction, this type of Portland cement is not used. The exception is th

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Arbad, Nachiket, and Catalin Teodoriu. "A Review of Recent Research on Contamination of Oil Well Cement with Oil-based Drilling Fluid and the Need of New and Accurate Correlations." ChemEngineering 4, no. 2 (April 14, 2020): 28. http://dx.doi.org/10.3390/chemengineering4020028.

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Drilling fluids and oil well cement are important well barriers. Their compatibility affects the long-term integrity of the well. The mixing of drilling fluid with the oil well cement causes contamination of oil well cement. If the contamination is due to diesel/oil-based drilling fluid (OBF) it adversely affects the rheological and mechanical properties of oil well cement—in other words, the long-term integrity of the well. An initial study on OBF contamination of oil well cement was carried out two decades ago. In recent years, several research projects were carried out on the same topic to

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Liu, Hongtao, Chongyuan Zhang, Li Zhao, Xuliang Zhang, Hongde Qin, Xiaogang Lv, and Junqi Yang. "Deep Well and Ultra-Deep Well Drilling and Completion Technology Optimization and Application of Kuche Piedmont Area." Highlights in Science, Engineering and Technology 25 (December 13, 2022): 1–6. http://dx.doi.org/10.54097/hset.v25i.3411.

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In recent years, the exploration and development of China's Tarim Basin has moved towards ultra-deep and complex areas. With the increase in well depth and the influence of the geological characteristics of the Kuche Piedmont area, a series of drilling problems for 8000m-level ultra-deep wells in this area have been caused. As a result, a series of new drilling and completion technologies have been formed: ①Based on the tower standard I type well structure, the improved tower standard II-B\II-C type well structure is used to solve the drilling of two sets of salt formations. Difficulties; ②Opt

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Al-adliy, Sajjad H., Faleh H. M. Al-mahdawi, Elhassan M. A. Mohammed, and Yasir M. F. Mukhtar. "Comparison Different Techniques of Optimum Location for Infill Well Drilling." Iraqi Journal of Chemical and Petroleum Engineering 25, no. 1 (March 30, 2024): 75–81. http://dx.doi.org/10.31699/ijcpe.2024.1.7.

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Increasing oil production from a reservoir can be achieved by decreasing the distance between the injector and the producer through a process known as infill drilling, which involves a pattern water flood. The main objective of this study is to provide a comprehensive overview of the optimal infill well location and the research and applications available to enhance the oil recovery factor, leading to increased economic profits. one effective empirical approach used in this study is based on decline curve analysis, which analyzes the production history of the well to determine the final econom

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Yang, Li, Yun Peng An, Nan Tian, Jun Ma, and Jian Hua Yao. "Application Study of Phase Inversion for Drilling Fluid in Well Lianhua 000-X2#." Advanced Materials Research 524-527 (May 2012): 1153–56. http://dx.doi.org/10.4028/www.scientific.net/amr.524-527.1153.

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In order to reduce the flow resistance of a water-based drilling fluid, emulsifiers tend to be added into the drilling fluid mixed with oil at the same time. However, inappropriate proportion or oil-based pipe free agent with low HLB value could easily trigger the phase inversion of the drilling fluid, causing its stability loss or even water–solid separation. Therefore, starting from the root cause of the phase inversion, the surfactivity of solid-phase materials in the drilling fluid was changed from hydrophobicity to hydrophilicity by adding surfactants with high HLB value. Then its colloid

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Herrnstadt, Evan, Ryan Kellogg, and Eric Lewis. "Drilling Deadlines and Oil and Gas Development." Econometrica 92, no. 1 (2024): 29–60. http://dx.doi.org/10.3982/ecta18436.

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Oil and gas leases between mineral owners and extraction firms typically specify a date by which the firm must either drill a well or lose the lease. These deadlines are known as primary terms. Using data from the Louisiana shale boom, we first show that well drilling is substantially bunched just before the primary term deadline. This bunching is not necessarily surplus‐reducing: using an estimated model of firms' drilling and input choices, we show that primary terms can increase total surplus by countering the effects of leases' royalties, as royalties are a tax on revenue and delay drillin

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Shen, Zhenzhen, Heng Zhang, Xingying Yu, Mingwei Wang, Chaoli Gao, Song Li, and Haotian Zhang. "Experimental Optimization of High-Temperature-Resistant and Low Oil—Water Ratio High-Density Oil-Based Drilling Fluid." Processes 11, no. 4 (April 6, 2023): 1129. http://dx.doi.org/10.3390/pr11041129.

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Abstract (sommario):

Problems such as well loss and collapses in deep shale gas drilling are most often due to the development of cracks in the shale formation, resulting in significant leaks of drilling fluid, the sticking and burrowing of drilling tools, and other engineering accidents. In addition, the horizontal sections of wells are very long and issues of friction, rock transport, and formation contamination loom large. As a result, the performance of drilling fluids directly affects drilling efficiency, engineering accident rates, and reservoir protection effects. We first analyze the mechanisms of each emu

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37

Ndubuisi Elizabeth Chinyerem, Maha Ifeanyi Emmanuel, and Iloke Emeka. "Optimization of well design and bit selection to reduce drilling cost and improve efficiency." World Journal of Advanced Research and Reviews 21, no. 3 (March 30, 2023): 2136–42. http://dx.doi.org/10.30574/wjarr.2024.21.3.0908.

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Abstract (sommario):

Drilling oil and gas well at the lowest possible cost has always been paramount to drilling engineers in order to achieve their company’s objectives. However, in most cases, this is not attained because of the problem associated with the drilling bit selection, drilling design and drilling parameters. As it is a fact that the large chunk of the cost of bringing oil and gas to the surface is always incurred at the drilling/completion stage. In this study, data were gathered from selected 5 Niger Delta wells and were analyzed. These data were used to calculate the costs of drill bits and the bit

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38

Wang, Fu Hua, Rui He Wang, and Xue Chao Tan. "How to Improve Rate of Penetration for Oil and Gas Wells." Advanced Materials Research 524-527 (May 2012): 1439–49. http://dx.doi.org/10.4028/www.scientific.net/amr.524-527.1439.

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Abstract (sommario):

Improved optimization of drilling bit selection and the compatibility between drilling bit and formation constraint the ROP and cost of deep well drilling to some extent. This combined with lab comprehensive lab drilling simulations and mechanisms of rock penetration can hold promise for improving drilling efficiency in deep wells. This paper reviews the mechanical characteristic parameters of rock engineering and demonstrates the obstacle of rock penetration in deep wells. Based on the general predictable formula of ROP, the relationship between drilling sensitive index and formation drillabi

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39

Hamad-Allah, Sameera M., and Ali A. Ismael. "APPLICATION OF MATHEMATICAL DRILLING MODEL ON SOUTHERN IRAQI OIL FIELDS." Journal of Engineering 14, no. 03 (September 1, 2008): 2763–84. http://dx.doi.org/10.31026/j.eng.2008.03.17.

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Abstract (sommario):

Minimum-cost well drilling demands the best use of controllable drilling variables for each formation to be drilled. To reach this aim, this study was divided into two main parts: The first part deals with applying a mathematical drilling model to field data of forty wells drilled at three major oil fields (RU, R, and Z). Bourgoyne & Young (1974) drilling model has been modified to take into consideration the combined effect of weight on bit, rotary speed, bit type, bit size, flow rate, drilling fluid density, drilling fluid viscosity, oil content, bit-nozzle size, formation drillability,

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40

Assi, Amel. "Non-Productive Time Reduction during Oil Wells Drilling Operations." Journal of Petroleum Research and Studies 12, no. 3 (September 11, 2022): 34–50. http://dx.doi.org/10.52716/jprs.v12i3.541.

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Abstract (sommario):

Often there is no well drilling without problems. The solution lies in managing and evaluating these problems and developing strategies to manage and scale them. Non-productive time (NPT) is one of the main causes of delayed drilling operations. Many events or possibilities can lead to a halt in drilling operations or a marginal decrease in the advancement of drilling, this is called (NPT). Reducing NPT has an important impact on the total expenditure, time and cost are considered one of the most important success factors in the oil industry. In other words, steps must be taken to investigate

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41

Qiao, Zhongshan, Jiaxu Li, Haijian Zhao, Wen Ren, and Jiansheng Yu. "Analysis of Measures for Environmental Protection of Oil-base Drilling Fluid." International Journal of Power and Energy Engineering 3, no. 10 (October 31, 2021): 10–12. http://dx.doi.org/10.53469/ijpee.2021.03(10).03.

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Abstract (sommario):

With the continuous development of China ' s economy, social and industrial demand for crude oil is increasing. Therefore, how to efficiently develop oil and gas fields is the focus of oil industry practitioners. Drilling engineering is the top priority in oil and gas field development projects. Drilling fluid is an important part of oil drilling. Its main functions are cooling bit, carrying cuttings and protecting wellbore. Due to its complex composition, it will cause serious environmental pollution in the process of oil drilling. Oil-based drilling fluid is often used in special drilling op

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42

Eyvazov, Jabrayil, and Natig Hamidov. "The effect of hydraulic fracturing length to the well production." Journal of Physics: Conference Series 2594, no. 1 (October 1, 2023): 012022. http://dx.doi.org/10.1088/1742-6596/2594/1/012022.

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Abstract (sommario):

Abstract The lowering of the original or natural permeability of the reservoir rock close to the well bore is referred to as “formation damage.” Additionally, it can be described as any kind of procedure that lowers the productivity of an oil, water, or gas bearing formation. Production, drilling, hydraulic fracturing, and work over operations are just a few of the steps of recovering oil and gas from reservoirs that can result in formation damage, an unfavorable operational and financial issue. A well stimulation method used to raise well productivity is hydraulic fracturing. This method help

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43

Wang, Peng, Hui Zhang, Jun Li, Yuting Zhou, and Yifeng Fan. "Field Research and Application of Tracking Adjustment Technology While Drilling for a Horizontal Well in Block A." E3S Web of Conferences 416 (2023): 01016. http://dx.doi.org/10.1051/e3sconf/202341601016.

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Abstract (sommario):

A reservoir in Block A of an oil field is a new layer series in the new area, and a horizontal well has been deployed for the first time around the development of the target layer in the third section of the reservoir. Compared with the oil layers in the old area, the structure of the target layer in Block A is more complex, the reservoir changes rapidly, the prediction of sand-laden mud reservoir is difficult, and the tracking adjustment of horizontal wells while drilling is difficult. In view of the above problems, in order to ensure the drilling effect, we have carried out the basic geologi

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44

Zhou, Xin. "Application of Well Control Technology in Drilling Engineering." International Journal of Power and Energy Engineering 3, no. 10 (October 31, 2021): 42–44. http://dx.doi.org/10.53469/ijpee.2021.03(10).08.

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Abstract (sommario):

Drilling operation is the leader of the oil exploration and development industry. The complexity of the process determines the characteristics of high investment and high risk. The particularity of the operating conditions determines the characteristics of labor intensity, gravity, and three-dimensional intersection, which all make the drilling operation process have various risks. These risks affect the efficiency and progress of operations, and even cause major accidents in serious cases, leading to casualties and property losses. Therefore, it is necessary to further improve the well contro

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45

Eldar Suleymanov, Eldar Suleymanov, and Babil Sultanov Babil Sultanov. "COMPLICATION DURING WELL DRILLING AND THEIR PREVENTION." PAHTEI-Procedings of Azerbaijan High Technical Educational Institutions 16, no. 05 (April 25, 2022): 26–32. http://dx.doi.org/10.36962/pahtei16052022-26.

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Abstract (sommario):

The article provides a brief analysis of the complications that occur during the drilling of wells and their prevention. Violation of normal working conditions during drilling of wells occurs as a result of the impact of geological factors, disruption of technical and technological processes, as well as improper organization of work. Improper organization of work means a lack of manpower in the rig, failure to bring the necessary materials and tools to the rig, timely elimination of defects in the installation work. Due to technical failures of surface and wellhead equipment, long-term oil and

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46

Kuleshova, Lyubov, Ruslan Gilyazetdinov, Vyacheslav Sh Mukhametshin, and Shamil Mingulov. "Choosing well grid density for low productivity carbonate reservoirs." E3S Web of Conferences 480 (2024): 01016. http://dx.doi.org/10.1051/e3sconf/202448001016.

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Abstract (sommario):

Based on the analysis and generalization of the experience in developing various groups of low-productivity deposits in the carbonate reservoirs of the Volga-Ural oil and gas province, the article proposes geological and statistical dependencies that allow for a differentiated choice of grid density for wells both between selected groups of objects and within them, depending on the geological characteristics. Technical and economic calculations determined the drilling zones and helped select an optimal well grid density. Calculations were made using geological and commercial data on sufficient

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47

Song, Xing-liang, Yi Zhang, Chun-hui Zhang, Xin-rong Zhou, and LI-hong Kong. "Discussion on Well Control Technique During Post-fracturing Tool Interval." Journal of Physics: Conference Series 2594, no. 1 (October 1, 2023): 012007. http://dx.doi.org/10.1088/1742-6596/2594/1/012007.

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Abstract (sommario):

Abstract In the oil and gas exploration and development safety work, well control is the top priority, which goes deep into every field of oil exploration and development production. How to improve the well control consciousness of drilling engineering in the normal production process of actual drilling engineering has become an important subject faced by petroleum exploration and development. This paper focuses on the research and analysis of fracturing string internal well control problems, and puts forward a series of solutions and suggestions according to the practical experience.

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48

Kobilov, Nodirbek, Bosit Khamidov, Abror Shukurov, Sarvar Kodirov, and Kuvonchbek Juraev. "New composition of chemicals and heavy drilling fluids for drilling oil and gas wells." E3S Web of Conferences 401 (2023): 05077. http://dx.doi.org/10.1051/e3sconf/202340105077.

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Abstract (sommario):

The article shows the importance of obtaining new composition of heavy drilling fluids based on composite chemical reagents from local raw materials and industrial wastes for drilling oil and gas wells. In the process of building oil and gas wells to maintain the stability of the walls, to prevent the flow of salts, and to prevent the penetration of formation fluids into the well, it becomes necessary to increase the density of the drilling fluid, which can be accomplished by introducing components with increased density. For obtaining and stabilization heavy drilling fluid were investigated a

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49

Ganiev, R. I., Luc Deboer, A. H. Agliullin, and R. A. Ismakov. "Dual gradient drilling: a pilot test of decanter centrifuge for CAPM technology." SOCAR Proceedings, SI2 (December 30, 2021): 70–79. http://dx.doi.org/10.5510/ogp2021si200585.

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Abstract (sommario):

The article is about problem of drilling deepwater oil and gas wells that consists in complicating and increasing cost of their well design due to narrowing mud window at different depths. The authors analyse drilling technology developed and applied in practice of offshore drilling with a dual gradient drilling, which allows drilling significant intervals without overlapping an intermediate casing string. Based on analysis of these technologies and taking into account their disadvantages the authors proposed and tested a new drilling technology of dual gradient drilling with placement of all

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50

Benkherouf, Lakdere, and Susan Pitts. "On a multidimensional oil exploration problem." Journal of Applied Mathematics and Stochastic Analysis 2005, no. 2 (January 1, 2005): 97–118. http://dx.doi.org/10.1155/jamsa.2005.97.

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Abstract (sommario):

This paper is concerned with optimal strategies for drilling in an oil exploration model. An exploration area contains n1 large and n2 small oilfields, where n1 and n2 are unknown, and represented by a two-dimensional prior distribution π. A single exploration well discovers at most one oilfield, and the discovery process is governed by some probabilistic law. Drilling a single well costs c, and the values of a large and small oilfield are v1 and v2 respectively, v1>v2>c>0. At each time t=1,2,…, the operator is faced with the option of stopping drilling and retiring with no reward, or

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