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FAN Baitao. Progress and prospects of deepwater and offshore deep formation drilling and completion technologies of CNOOC [J]. Petroleum Drilling Techniques, 2025, 53(3)：11−19. DOI: 10.11911/syztjs.2025051
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Deepwater and offshore deep formation oil and gas resources are crucial for enhancing reserves and production in China’s offshore oil and gas industry. However, there are multiple challenges for the drilling and completion operations such as complex engineering and geological conditions, extreme environments, high costs, etc. This paper systematically reviews the key technological advancements made by China National Offshore Oil Corporation (CNOOC) in the fields of deepwater and offshore deep formation drilling and completion, and outlines the future development directions. It aims to provide theoretical support and practical references for safe and efficient development under complex scenarios.To address core challenges such as well control overflow monitoring, wellbore integrity, and efficient completion in deepwater complex wells, CNOOC has innovatively developed seabed gas invasion early warning systems, full lifecycle annular pressure management technology, and multi-channel bypass screen equipment, etc. These innovations have successfully ensured the successful commissioning of major projects such as the“Deep Sea No.1”ultra-deepwater gas field. To address the bottlenecks of complex offshore deep formations and high development costs, CNOOC has proposed key technologies such as multi-source information fusion for structural identification, high-temperature-resistant and low-cost corrosion prevention, and open-hole sidetracking in hard formations. These technologies significantly have improved development efficiency in deep gas fields such as BZ19−6. However, technical bottlenecks still exist in complex scenarios such as ultra-shallow gas zone development in deepwater areas and superposition of high temperature and high pressure working conditions in deepwater, while the localization level of critical tools, equipment, and engineering design software requires further enhancement. Future efforts should focus on breakthroughs in intelligent control of ultra-deep drilling, full lifecycle corrosion prevention optimization, and disruptive green technology research and development, so as to strengthen independent control capabilities and promote efficient exploitation of China’s deepwater and offshore deep formation oil and gas resources.
| [1] |
谢玉洪. 中国海洋石油总公司油气勘探新进展及展望[J]. 中国石油勘探,2018,23(1):26–35. doi: 10.3969/j.issn.1672-7703.2018.01.003
XIE Yuhong. New progress and prospect of oil and gas exploration of China National Offshore Oil Corporation[J]. China Petroleum Exploration, 2018, 23(1): 26–35. doi: 10.3969/j.issn.1672-7703.2018.01.003
|
| [2] |
刘书杰,谢仁军,仝刚,等. 中国海洋石油集团有限公司深水钻完井技术进展及展望[J]. 石油学报,2019,40(增刊2):168-173.
LIU Shujie, XIE Renjun, TONG Gang, et al. Progress and prospect of deepwater well drilling and completion technique of CNOOC[J]. Acta Petrolei Sinica, 2019, 40(supplement 2): 168-173.
|
| [3] |
李中. 渤海深层探井钻井关键技术现状及展望[J]. 钻采工艺,2024,47(2):35–41. doi: 10.3969/J.ISSN.1006-768X.2024.02.05
LI Zhong. Challenges and technology trends prediction of deep exploration well drilling in Bohai Sea[J]. Drilling & Production Technology, 2024, 47(2): 35–41. doi: 10.3969/J.ISSN.1006-768X.2024.02.05
|
| [4] |
刘和兴,孟文波,刘书杰. “深海一号”超深水气田高效钻完井管理创新与实践[J]. 中国石油企业,2024(3):40–46. doi: 10.3969/j.issn.1672-4267.2024.03.016
LIU Hexing, MENG Wenbo, LIU Shujie. Innovation and practice of efficient drilling and completion management for "Deep Sea No. 1" ultra-deepwater gas field[J]. China Petroleum Enterprise, 2024(3): 40–46. doi: 10.3969/j.issn.1672-4267.2024.03.016
|
| [5] |
李中. 中国海油“深海一号”大气田钻完井关键技术进展及展望[J]. 石油钻探技术,2023,51(4):88–94. doi: 10.11911/syztjs.2023031
LI Zhong. Progress and prospect of key technologies for drilling and completion of “Deep Sea No. 1” Gas Field of CNOOC[J]. Petroleum Drilling Technology, 2023, 51(4): 88–94. doi: 10.11911/syztjs.2023031
|
| [6] |
黄熠,刘书杰,周建良,等. 陵水17-2气田深水钻完井关键技术研究与应用[J]. 中国海上油气,2021,33(5):130–135.
HUANG Yi, LIU Shujie, ZHOU Jianliang, et al. Research and application of key technologies for deep water drilling and completion in LS 17-2 Gas Field[J]. China Offshore Oil and Gas, 2021, 33(5): 130–135.
|
| [7] |
刘书杰,吴怡,谢仁军,等. 深水深层井钻井关键技术发展与展望[J]. 石油钻采工艺,2021,43(2):139–145.
LIU Shujie, WU Yi, XIE Renjun, et al. Development and prospect of the key technologies for the drilling of deep wells in deep water[J]. Drilling and Production Technology, 2021, 43(2): 139–145.
|
| [8] |
杨进,傅超,刘书杰,等. 超深水浅层建井关键技术创新与实践[J]. 石油学报,2022,43(10):1500–1508.
YANG Jin, FU Chao, LIU Shujie, et al. Key technological innovation and practice of well construction in ultra-deepwater shallow formations[J]. Acta Petrolei Sinica, 2022, 43(10): 1500–1508.
|
| [9] |
赵金海,张洪宁,王恒,等. 中国石化超深层钻完井关键技术挑战及展望[J]. 钻采工艺,2024,47(2):28–34. doi: 10.3969/J.ISSN.1006-768X.2024.02.04
ZHAO Jinhai, ZHANG Hongning, WANG Heng, et al. Key technical challenges and prospects of drilling and completion in ultra-deep reservoirs, Sinopec[J]. Drilling and Production Technology, 2024, 47(2): 28–34. doi: 10.3969/J.ISSN.1006-768X.2024.02.04
|
| [10] |
马英文,曹砚锋,邱浩,等. 中国海油中深层油气田完井技术现状及展望[J]. 中国海上油气,2024,36(5):146–156.
MA Yingwen, CAO Yanfeng, QIU Hao, et al. Status and prospects of well completion technologies for middle-to-deep oil and gas fields of CNOOC[J]. China Offshore Oil and Gas, 2024, 36(5): 146–156.
|
| [11] |
ZHANG Ziheng, YIN Xiaokang, SUN Chaoqiang, et al. Gas kick monitoring in deep-water drilling risers based on ultrasonic Doppler spectroscopy[J]. Ocean Engineering, 2025, 321: 120457. doi: 10.1016/j.oceaneng.2025.120457
|
| [12] |
李军,杨宏伟,张辉,等. 深水油气钻采井筒压力预测及其控制研究进展[J]. 中国科学基金,2021,35(6):973–983.
LI Jun, YANG Hongwei, ZHANG Hui, et al. Progress of basic research on wellbore pressure control in deepwater oil and gas drilling and production[J]. China Science Fund, 2021, 35(6): 973–983.
|
| [13] |
WANG Jiawei, ZHANG Zhi, CHEN Xiang, et al. Research on the impact of overflow well shut-in on wellbore integrity and safety[J]. Geoenergy Science and Engineering, 2024, 243: 213304. doi: 10.1016/j.geoen.2024.213304
|
| [14] |
曹砚锋,李汉兴,黄辉,等. 海上油田高效开发钻完井关键技术研究新进展[J]. 中国海上油气,2022,34(6):124–134.
CAO Yanfeng, LI Hanxing, HUANG Hui, et al. Research progress on drilling and completion technology for efficient development of offshore oilfields[J]. China Offshore Oil and Gas, 2022, 34(6): 124–134.
|
| [15] |
孙金声,刘伟,王庆,等. 万米超深层油气钻完井关键技术面临挑战与发展展望[J]. 钻采工艺,2024,47(2):1–9. doi: 10.3969/J.ISSN.1006-768X.2024.02.01
SUN Jinsheng, LIU Wei, WANG Qing, et al. Challenges and development prospects of oil and gas drilling and completion in myriametric deep formation in China[J]. Drilling and Production Technology, 2024, 47(2): 1–9. doi: 10.3969/J.ISSN.1006-768X.2024.02.01
|
| [16] |
刘岩生,张佳伟,黄洪春. 中国深层—超深层钻完井关键技术及发展方向[J]. 石油学报,2024,45(1):312–324. doi: 10.7623/syxb202401018
LIU Yansheng, ZHANG Jiawei, HUANG Hongchun. Key technologies and development direction for deep and ultra-deep drilling and completion in China[J]. Acta Petrolei Sinica, 2024, 45(1): 312–324. doi: 10.7623/syxb202401018
|
| [17] |
LIU Yuping, ZHOU Yanyu, WANG Wenzhe, et al. Synergistic damage mechanisms of high-temperature metal corrosion in marine environments: a review[J]. Progress in Organic Coatings, 2024, 197: 108765. doi: 10.1016/j.porgcoat.2024.108765
|
| [18] |
周长所,杨进,幸雪松,等. 基于机械比能理论的渤海深层钻井参数优化[J]. 石油钻采工艺,2021,43(6):693–697.
ZHOU Changsuo, YANG Jin, XING Xuesong, et al. Optimizing drilling parameters of deep formations in the Bohai Basin based on mechanical specific energy theory[J]. Oil Drilling & Production Technology, 2021, 43(6): 693–697.
|
| [19] |
刘正礼,胡伟杰. 南海深水钻完井技术挑战及对策[J]. 石油钻采工艺,2015,37(1):8–12.
LIU Zhengli, HU Weijie. Countermeasures and challenges of deepwater drilling and completion technology in South China Sea[J]. Oil Drilling & Production Technology, 2015, 37(1): 8–12.
|
| [20] |
SUN Jinsheng, YANG Jingbin, BAI Yingrui, et al. Research progress and development of deep and ultra-deep drilling fluid technology[J]. Petroleum Exploration and Development, 2024, 51(4): 1022–1034. doi: 10.1016/S1876-3804(24)60522-7
|
| [21] |
李中,谢仁军,吴怡,等. 中国海洋油气钻完井技术的进展与展望[J]. 天然气工业,2021,41(8):178–185. doi: 10.3787/j.issn.1000-0976.2021.08.016
LI Zhong, XIE Renjun, WU Yi, et al. Progress and prospect of CNOOC’s oil and gas well drilling and completion technologies[J]. Natural Gas Industry, 2021, 41(8): 178–185. doi: 10.3787/j.issn.1000-0976.2021.08.016
|
| [22] |
李根生,宋先知,祝兆鹏,等. 智能钻完井技术研究进展与前景展望[J]. 石油钻探技术,2023,51(4):35–47. doi: 10.11911/syztjs.2023040
LI Gensheng, SONG Xianzhi, ZHU Zhaopeng, et al. Research progress and the prospect of intelligent drilling and completion technologies[J]. Petroleum Drilling Techniques, 2023, 51(4): 35–47. doi: 10.11911/syztjs.2023040
|
| [23] |
汪海阁,葛云华,石林. 深井超深井钻完井技术现状、挑战和“十三五”发展方向[J]. 天然气工业,2017,37(4):1–8. doi: 10.3787/j.issn.1000-0976.2017.04.001
WANG Haige, GE Yunhua, SHI Lin. Technologies in deep and ultra-deep well drilling: present status, challenges and future trend in the 13th Five-Year Plan period (2016–2020)[J]. Natural Gas Industry, 2017, 37(4): 1–8. doi: 10.3787/j.issn.1000-0976.2017.04.001
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Supervisor：SINOPEC GROUP
Sponsor：Sinopec Research Institute of Petroleum Engineering
Serial Number：CN 11-1763/TE, ISSN 1001-0890
Chief Editor： WANG Minsheng
Supported by: Beijing Renhe Information Technology Co., Ltd. 
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