WC-A1井TAML五级分支井钻井技术研究及应用  

Research and Application of Level 5 Multilateral Well in WC-A1 Well

作　　者：薛洋 XUE Yang(China Oilfield Service Limited,Zhanjiang 524057,China)

机构地区：[1]中海油田服务股份有限公司,广东湛江524057

出　　处：《石油矿场机械》2021年第6期63-67,共5页Oil Field Equipment

基　　金：中国海洋石油有限公司科研项目“北部湾油田经济开发钻完井技术研究”部分研究成果(YXKY-2019-ZJ-04)。

摘　　要：南海西部文昌某油田ZJ-1地层为低孔低渗,为提高其单井产量、增加泄油面积,提出了采用五级分支井钻井技术的开发方式,并成功研制Φ244.47 mm斜向器、Φ209 mm壁挂式悬挂器、Φ169 mm井眼导向器等新型五级分支井工具。通过优化井身结构设计与分支点选择,利用旋转导向系统对轨迹的精确控制,形成了海上油田五级分支井钻井技术,解决了五级分支井在钻井方面存在的轨迹控制、壁挂式悬挂器坐挂、井眼重入等技术难题,对提高单井泄油面积和控制储量有积极意义,为海上低孔低渗储层开发提供新的思路。In order to more effectively develop the Wenchang low-permeability reservoirs and increase production per single well,a development method using level 5 multilateral well drilling technology was proposed to enlarge reservoir drainage.Novel tools such as Φ244.47 mm whipstock,Φ209 mm hook hanger,and Φ169 mm lateral drilling diverter have been successfully developed,which realized the level 5 multilateral well drilling technology in offshore oil oilfield by optimization of the well structure design and window cutting point selection by using rotary steering tool to accurately control the trajectory.The technology solves the problems of level 5 multilateral well in drilling technology such as accurately trajectory control,hook hanger setting,and main hole with selective reentry function after completion.This technology has positive significance for increasing the drainage area of a single well and controlled reservoirs and provides a new idea for the development of low porosity and permeability offshore reservoirs.

关 键 词：五级分支井 壁挂式悬挂器 井眼导向器 旋转导向 

分 类 号：TE952[石油与天然气工程—石油机械设备]