陈宗琦,刘湘华,白彬珍,等. 顺北油气田特深井钻井完井技术进展与发展思考[J]. 石油钻探技术,2022, 50(4):1-10. DOI: 10.11911/syztjs.2022069
引用本文: 陈宗琦,刘湘华,白彬珍,等. 顺北油气田特深井钻井完井技术进展与发展思考[J]. 石油钻探技术,2022, 50(4):1-10. DOI: 10.11911/syztjs.2022069
CHEN Zongqi, LIU Xianghua, BAI Binzhen, et al. Technical progress and development consideration of drilling and completion engineering for ultra-deep wells in the Shunbei Oil & Gas Field [J]. Petroleum Drilling Techniques,2022, 50(4):1-10. DOI: 10.11911/syztjs.2022069
Citation: CHEN Zongqi, LIU Xianghua, BAI Binzhen, et al. Technical progress and development consideration of drilling and completion engineering for ultra-deep wells in the Shunbei Oil & Gas Field [J]. Petroleum Drilling Techniques,2022, 50(4):1-10. DOI: 10.11911/syztjs.2022069

顺北油气田特深井钻井完井技术进展与发展思考

Technical Progress and Development Consideration of Drilling and Completion Engineering for Ultra-Deep Wells in the Shunbei Oil & Gas Field

  • 摘要: 顺北油气田油气资源储量丰富,但特深层碳酸盐岩油藏地质条件复杂,钻井完井过程中存在漏失、井壁失稳和高压盐水侵等问题,因此,探索适用于该油气田特深井的钻井完井技术体系,是加快该油气田开发进程的关键。通过技术攻关和实践,形成了适用于顺北油气田的特深井钻井完井技术体系,包括特深井井身结构优化、钻井提速关键技术、防漏堵漏技术、长裸眼防漏及小间隙固井技术、超深小井眼定向钻井技术和超深井缝洞型储层完井技术等技术,指出需持续优化特深井井身结构、急需解决二叠系和志留系漏失问题、深层破碎带安全钻进技术不成熟、急需配套高温高压井下仪器工具和裂缝性储层安全钻井技术,提出了增强工程地质一体化、加强堵漏和防塌技术研究、加强新技术和新工具的应用、加强高端仪器和特殊材料及装备研发等发展建议,以进一步推动顺北油气田特深井钻井完井技术的快速发展,实现该油气田特深层碳酸盐岩油气藏的高效开发。

     

    Abstract: The Shunbei Oil & Gas Field possesses abundant oil and gas accumulations, however, for its ultra-deep carbonate reservoirs, drilling and completion encounter problems such as lost circulation, wellbore instability, and high-pressure brine intrusion due to complex geological conditions. Therefore, seeking proper drilling and completion technology system for ultra-deep wells is the key point to accelerate field development. In this paper, the drilling and completion technology system for the ultra-deep wells in the Shunbei Oil & Gas Field was formed with technical breakthroughs and field practices, including ultra-deep well casing program optimization, key technologies to increase the rate of penetration (ROP), technologies for preventing and controlling circulation loss, long open hole leakage prevention and small clearance cementing technology, directional drilling technologies for ultra-deep slim holes, and completion technologies for ultra-deep wells in fractured-vuggy reservoirs. Meanwhile, some unresolved urgent challenges were defined, such as the further optimization of casing program for ultra-deep wells, solutions for severe lost circulation problems in the Permian and Silurian, safe drilling technologies for deep wells in the fractured belt, downhole equipments and tools for high temperature and high pressure (HTHP) wells, and safe drilling technologies for fractured reservoirs. Accordingly, development suggestions were proposed, including enhancing the integration of geology and engineering, strengthening the research on loss circulation control and anti-sloughing technologies, facilitating the application of new technologies and new tools, and reinforcing the research and development of high-end equipments and special materials and devices. These suggestions can further spur the rapid innovation of drilling and completion technologies for ultra-deep wells in the Shunbei Oil & Gas Field and achieve efficient exploitation of ultra-deep carbonate reservoirs.

     

/

返回文章
返回