渤海边际油田开发配套钻完井技术

Drilling and Completion Techniques for the Development of Marginal Oilfields in Bohai

霍宏博 李金蔓 张羽臣 谢涛 何瑞兵

HUO Hongbo LI Jinman ZHANG Yuchen XIE Tao HE Reibing

中海石油（中国）有限公司天津分公司，天津　30045 海洋石油高效开发国家重点实验室，天津　300459

CNOOC China Limited, Tianjin 300459, China State Key Laboratory of Offshore Oil Exploitation, Tianjin 300459, China

边际储量是渤海储量的重要组成部分，但受制于海洋边际油田的经济性和技术性限制，动用难度大。近年来渤海针对渤海边际油田简易平台部署井位少、覆盖地下含油面积小、钻完井投资高等技术难题，进行技术攻关，成功开发了渤中区域、曹妃甸区域的多个边际油田，积累了边际油田开发经验。应用大位移井、单筒双井、井口回接、单井双泵等技术方法，形成了一套适用于渤海边际油田的简化工程设施、依托已有设施的钻完井技术，取得了良好的经济效益。在国内外相关技术基础上分析当前制约渤海边际储量动用的钻完井技术瓶颈，整理渤海边际油田开发思路，对渤海边际油田开发钻完井技术未来研究方向进行思考和展望，为挖掘渤海边际油田油气资源提供了参考。

Marginal reserves are important parts of Bohai's reserves. However, limited by the economic and technical limitations of offshore marginal oilfields, it is difficult to develop them. In recent years, Bohai has successfully developed several marginal oilfields in Bozhong region and Caofeidian region by tackling technical problems such as few well slots, small underground oil-bearing area and high drilling and completion investment, etc. Experiences have been accumulated in the development of marginal oilfields. By using extended reach wells, single barrel double wells, wellhead tie back, single well and double pumps and other technical methods, a set of simplified engineering facilities suitable for Bohai marginal oilfields and drilling and completion technologies relying on existing facilities have been formed, and good economic benefits have been achieved. On the basis of relevant technologies at home and abroad, this paper analyzes the bottleneck of drilling and completion technology that restricts the production of marginal reserves in Bohai, sorts out the development ideas of marginal oilfields in Bohai, and thinks about and prospects the future research direction of drilling and completion technology for the development of marginal oilfields in Bohai, which provides a reference for the exploitation of oil and gas resources in marginal oilfields in Bohai.

国家科技重大专项 “渤海油田高效开发示范工程”（2016ZX05058）；渤海油田3 000万吨持续稳产关键技术研究 CNOOC-KJ I35 ZDXM 36 TJ

https://doi.org/10.3969/j.issn.1008-2336.2021.01.056