涪陵页岩气田钻井关键技术

The Key Drilling Technologies in Fuling Shale Gas Field

艾军 张金成 臧艳彬 许明标

Ai Jun Zhang Jincheng Zang Yanbin Xu Mingbiao

中石化重庆涪陵页岩气勘探开发有限公司, 重庆涪陵 408014; 中国石化石油工程技术研究院, 北京 100101; 长江大学石油工程学院, 湖北武汉 430100

Sinopec Chongqing Fuling Shale Gas Exploration and Production Corporation, Fuling, Chongqing, 408014, China; Sinopec Research Institute of Petroleum Engineering, Beijing, 100101, China; College of Petroleum Engineering, Yangtze University, Wuhan, Hubei, 430100, China

涪陵地区地质条件复杂，导致钻井机械钻速及钻井周期差别大、井下复杂情况时有发生。为了实现优质快速钻井，中国石化发展了适合涪陵页岩气田地质特点的系列钻井关键技术，通过攻关研究与现场实践，先后形成了涪陵页岩气钻井工程优化设计技术、浅层直井段快速钻井技术、二开定向井段快速钻井技术、丛式水平井三维井眼轨迹控制技术、适应于涪陵页岩地层长水平段钻进的油基钻井液技术、页岩气储层长水平段油基钻井液水平井固井技术、复杂山地条件"井工厂"钻井技术等，基本形成了适用于涪陵页岩气田的钻井工程技术体系。与此同时，在钻井中又出现一些新问题，为此提出了涪陵页岩气田钻井技术的发展建议，以期为国内类似页岩气区块的钻井提速降本提供借鉴。

The complex geological conditions in the Fuling region have led to many drilling problems such as inconsistent rate of penetrations,different drilling cycles and complex accidents.In order to achieve high quality and highly efficient drilling performance,Sinopec has developed a series of drilling technologies suited to the geological features of the Fuling shale gas field.The key drilling technologies for Fuling shale gas field were analyzed and it was pointed out that by addressing the key issues and field applications the following technologies had been developed:drilling engineering design optimization,high-efficiency drilling techniques for shallow vertical section and second spud directional sections,three-dimensional trajectory controlling technology for optimizing induced fracture cluster spacing horizontal wells,the use of oil-based drilling fluid technology for long horizontal sections,new cementing technology for long horizontal sections drilled with oil-based drilling fluid,and developing an ideal pad drilling pattern for complex mountainous regions.Thus,the drilling technology systems for Fuling shale gas were generally established.Furthermore,the drilling technology development suggestions proposed for the new drilling issues,provided references for other similar shale gas blocks in China with a result of increasing ROP and the reducing drilling cost.

中国石油化工股份有限公司"十条龙"项目"涪陵区块页岩油气勘探开发关键技术"及中国石化科技攻关项目"页岩气’井工厂’技术研究"（编号：P13023）部分研究内容。

https://doi.org/10.11911/syztjs.201405002