夏92-H井复杂地层地质导向钻井技术  

Geosteering drilling technology for the complex formation of Well Xia 92-H

作　　者：张忠志[1,2] 丁红 刘院涛 

机构地区：[1]东北石油大学,黑龙江大庆163318 [2]西部钻探工程有限公司,新疆乌鲁木齐830011 [3]西部钻探定向井技术服务公司,新疆乌鲁木齐830026 [4]中国石油大学地球物理与信息工程学院,北京102249

出　　处：《石油钻采工艺》2014年第4期6-9,共4页Oil Drilling & Production Technology

基　　金：中石油股份公司项目"新疆和吐哈油田油气持续上产勘探开发关键技术研究"之专题"复杂油气藏优快钻井技术研究"(编号:2012E-34-13)资助

摘　　要：夏92-H井是环玛湖凹陷斜坡带上的一口预探水平井,该井所在区域构造复杂,横向油藏埋深变化大,各井差异性大,采用常规技术无法及时准确找到储层和确保井眼轨迹在储层中穿行,不利于提高探井水平井的油层钻遇率和油藏产能评价。通过建立钻前地质模型、实时解释随钻测井资料、及时进行地质导向、井眼轨迹描述与优化等,有效地确定了目的层顶界及着陆点深度,水平段油层钻遇率达到100%,取得了较好的地质导向和轨迹控制效果。Well Xia 92-H is a wildcat well on the circum-Mahu sag slope belt. The region where the well is located has complexstructure and large variation in lateral burial depth of the oil reservoirs, and the wells differ greatly from each other. Conventional technologycannot locate the reservoirs in a timely and accurate manner and cannot ensure that the hole trajectory will be kept in the reservoir,which is not favorable for improving the encountering rate of oil reservoir by horizontal wells and evaluation of reservoir productivity.By building a pre-drilling geologic model, real-time interpretation of MWD data and timely description and optimization of geosteeringand wellbore trajectory, the top boundary of the target and landing depth could be effectively determined and 100% of reservoir encounteringrate was achieved by horizontal holes, leading to excellent geosteering and trajectory control.

关 键 词：环玛湖 水平井 复杂地层 地质导向 轨迹控制 

分 类 号：TE21[石油与天然气工程—油气井工程]