“璇玑”推靠式旋转导向工具在直井中的应用  

The Application of Push-the-bit Rotary Steerable Tool of XuanJi System in Vertical Wells

作　　者：席志旭 刘晓斌[1] 孙师贤 侯晓东 陈锟 XI Zhixu;LIU Xiaobin;SUN Shixian;HOU Xiaodong;CHEN Kun(China Oilfield Services Co.,Ltd.,Sanhe 065201)

机构地区：[1]中海油田服务股份有限公司,三河065201

出　　处：《现代制造技术与装备》2023年第12期107-110,共4页Modern Manufacturing Technology and Equipment

基　　金：中海油田服务股份有限公司科研项目“定向井轨迹设计和工程参数预测软件研制”(YJB21YF009)。

摘　　要：Welleader是中海油田服务股份有限公司自主研发的“璇玑”系统推靠式旋转导向工具,其在工作时使用3个独立翼肋持续推靠井壁,依靠井壁的支撑产生偏置,从而进行导向作业。常规Welleader通过重力加速度表进行导向作业,但重力加速度表在垂直状态下的测量误差较大,导向执行效果差。而装配了磁通门的Welleader由于不受重力影响,具备更加精准的直井造斜能力。目前,Welleader在2种导向模式下的作业经验较少,无法对其作业能力进行系统对比和评估,对其直井作业能力认识不清晰。因此,文章分析了装配了磁通门和重力加速度表的Welleader在某试验井的12-1/4"井眼中多个直井造斜和降斜打直井段中的应用,通过整理和分析重要实钻试验数据,综合阐述了该工具在2种导向模式下进行直井相关作业的准确性和可靠性,以期为后续相关作业提供参考。Welleader is a rotary steerable tool developed by China Oilfield Services Co.,Ltd.,which uses 3 independent ribs to continuously push against the wellbore wall,relies on the offset generated by the reverse thrust of the wellbore wallto perform the steering operation.The conventional Welleader is steered by a gravity accelerometer,which theoretically has a large measurement error in the vertical state and provides poor steering results,the magnetometer-equipped Welleader has a more accurate vertical kick-off ability because it is not affected by gravity.However,due to the less experience of Welleader in the two steering modes,it is not possible to systematically compare and evaluate its operational ability,and its operational ability in vertical wells is not clearly analyzed.Based on the application of Welleader equipped with both magnetometer and gravity accelerometer performing kick-off and build from vertical and descend inclination from deviation to vertical operations in several 12-1/4"borehole sections in a test well,the accuracy and reliability of Welleader works in vertical wells related operations in two steering modes are comprehensively elaborated through the collation and analysis of important drilling test data in this paper,which will provide reference for the subsequent related operations.

关 键 词：“璇玑”系统 旋转导向工具 直井造斜 降斜 

分 类 号：TE921[石油与天然气工程—石油机械设备]