摘要
全姿态随钻陀螺测斜技术克服了传统MWD/无线随钻陀螺测斜仪(GWD)技术的局限性,可有效减少井眼轨迹控制的不确定性,降低钻井施工风险,非常适合于大斜度套管开窗井导斜器定向、丛式井或加密井防碰绕障、救援井及提高向东或向西的大斜度井测量精度。介绍了传统MWD/GWD技术的缺陷和全姿态GWD的结构、性能和测量要点。美国得克萨斯州Lake Worth某油田的3口水平井应用结果表明,全姿态GWD数据与连续陀螺测斜仪数据吻合,全姿态GWD数据可信度高。建议加大随钻陀螺测斜技术的研发力度,以提升我国的定向钻井技术水平,为复杂井定向施工提供先进的技术支持。
The all-attitude gyro while drilling technology,which eliminates the limit of the traditional MWD /Gyro While Drilling（ hereinafter referred to as GWD）,could effectively reduce the wellbore trajectory control uncertainty and reduce drilling operation risk,thus is very suitable for whipstock orientation in high-inclination sidetrack casing well,anti-collision of cluster well or infill well,relief well and east or west measurement accuracy improvement of high-inclination well. The shortcomings of traditional MWD / GWD and the structure,performance and measurement key point of all-attitude GWD technology have been introduced. Applications in three horizontal wells in an oilfield in Texas Lake Worth showed a consistent result with the continuous gyro inclinometer data with high reliability. It is proposed to strengthen GWD technology research and development so as to advance directional drilling technology in China and provide solid technical reserves for the complex directional well.
出处
《石油机械》
2016年第6期1-6,共6页
China Petroleum Machinery
基金
中石化前瞻项目"非油气领域科技成果的启示作用跟踪调研"(JP14023)的部分内容
关键词
定向钻井
磁性MWD
GWD
全姿态
现场应用
directional drilling
magnetic MWD
GWD
all-attitude
field application
