济阳坳陷页岩油多层立体开发关键工程技术

Key Engineering Technologies for Three-Dimensional Development of Multiple Formations of Shale Oil in Jiyang Depression

袁建强

YUAN Jianqiang

中石化石油工程技术服务股份有限公司, 北京 100020

Sinopec Oilfield Service Corporation, Beijing, 100020, China

济阳坳陷页岩油复杂的工程地质条件导致钻井周期长、复杂时效高、固井质量难控制和压裂施工难度大等问题突出。为解决以上工程技术问题，通过技术攻关和技术集成，形成了包括多层立体开发钻井工程设计、钻井提速提效技术、钻井液抗页岩油污染技术、水平段固井技术和高效增产压裂技术的页岩油多层立体开发关键工程技术。FY先导示范井组应用了页岩油多层立体开发关键工程技术，该井组8口井的平均钻井周期59.58 d、平均钻完井周期69.95 d，复杂时效较未应用该技术前降低51%，且顺利完成252段的压裂施工。研究与现场应用结果表明，页岩油多层立体开发关键工程技术能解决济阳坳陷页岩油立体开发存在的技术难点，使济阳坳陷页岩油立体开发工程技术水平得到提高，为济阳坳陷页岩油资源的有效开发提供了工程技术支撑。

The complex engineering geological conditions of shale oil in Jiyang Depression lead to some pro-minent problems, such as a long drilling cycle, high complex time efficiency, and difficulties in controlling cementing quality and fracturing. In response to them, key engineering technologies for the three-dimensional development of multiple formations of shale oil reservoir were developed through technology research and integration, including drilling engineering design for three-dimensional development in multiple formations, technologies for improving drilling speed and efficiency, technologies of preventing drilling fluids from pollution by shale oil, cementing technologies for horizontal sections, and fracturing technologies for high-efficiency stimulation. These key technologies were applied in the FY pilot demonstration well group. The average drilling cycle of eight wells in the group was 59.58 d, and the average completion period was 69.95 d. The complex time efficiency was decreased by 51% compared with that before the application of these technologies, and 252 sections were fractured successfully. The results of research and field application demonstrated that the series of technologies can tackle the technical problems in the three-dimensional development of multiple formations shale oil in Jiyang Depression and improve the relevant technical level, providing engineering and technical support for the effective development of shale oil resources in Jiyang Depression.

中国石化十条龙项目“东营凹陷页岩油钻完井提速提效技术研究”（编号：P21060-3）、中石化石油工程公司重大项目“胜利油区页岩油开发工程关键技术研究”（编号：SG2103）联合资助

https://doi.org/10.11911/syztjs.2023001