鱼骨状水平分支井建35-支平1井钻井技术  

Multilateral Horizontal Drilling Technology Used in Jian 35-Zhiping 1 Well

作　　者：崔海林[1] 唐洪林[1] 闫振来[1] 许新强[1] 左红军[1] 

机构地区：[1]胜利石油管理局钻井工艺研究院,山东东营257017

出　　处：《石油钻探技术》2010年第2期23-27,共5页Petroleum Drilling Techniques

摘　　要：为提高建南气田的采气量和改善开发效果,在建南区块部署了鱼骨状水平分支井———建35-支平1井。在介绍建35-支平1井储层地质情况、井身结构和井身轨迹剖面的基础上,对定向钻进阶段的技术难点进行了详细分析,并从钻具组合、螺杆钻具、钻井参数和钻进方式优选,及套管防磨、分支井眼扭方位、裸眼悬空侧钻和预防再进入分支井眼方面,对该井所采用的工艺技术和技术措施进行了详细介绍。该井的成功,证明采用鱼骨状水平分支井开采海相碳酸盐岩低渗低压裂缝性气藏是可行的,也为今后该技术在海相碳酸盐岩低渗低压裂缝性气藏的推广应用积累了宝贵经验。The Jian 35-Zhiping 1 Well,a fishbone-shaped multilateral well,is proposed in Jiannan block to improve exploitation and gas productivity.This paper introduces the geology of the reservoir,well casing structure and wellbore trajectory and analyzes the difficulties arising from directional drilling.The drilling techniques are introduced in detail,including the selection of bottom-hole assembly,mud motor,drilling variables and penetrating method,casing wear protection,rebelling directions of branch wellbores,sidetracking in open hole section,and re-entering.The success of this well indicates that multilateral well can be used to exploit fractured marine carbonates low permeability gas reservoirs.It also gained valuable experiences for recovering similar blocks in future.

关 键 词：裂缝性油气藏 水平井 分支井 建南气田 建35-支平1井 

分 类 号：TE243[石油与天然气工程—油气井工程]