连续管钻井肋式定向器执行机构偏置位移优化  

Research on Optimization of Actuator Offset Displacement of Rib-Type Orientation Tool for Coiled Tubing Drilling

作　　者：邢志晟 孔璐琳 祝传增 郑硕 焦滨海 蒋世东 李猛[1] Xing Zhisheng;Kong Lulin;Zhu Chuanzeng;Zheng Shuo;Jiao Binhai;Jiang Shidong;Li Meng(School of Petroleum and Natural Gas Engineering,Chongqing University of Science and Technology;China University of Petroleum(Beijing);PetroChina Research Institute of Petroleum Exploration and Development;International Exploration and Development Co.Ltd.,CNPC Aktubin Oil&,Gas Co.Ltd.;Pengbo Operation Company of CNOOC(China)Co.,Ltd.)

机构地区：[1]重庆科技学院石油与天然气工程学院 [2]中国石油大学(北京) [3]中国石油勘探开发研究院 [4]中国石油国际勘探开发有限公司中油阿克纠宾油气股份公司 [5]中海石油(中国)有限公司蓬勃作业公司

出　　处：《石油机械》2023年第2期26-32,共7页China Petroleum Machinery

基　　金：国家自然科学基金面上项目“耦合动力土反力作用的深水井口多轴疲劳理论和时变可靠度研究”(51974052);重庆市基础研究与前沿探索项目“连续管钻井(塞)管柱底部激振波及规律和振扭耦合多轴疲劳研究”(cstc2019jcyj-msxmX0199);全国大学生科技创新项目“连续管钻井定向器执行机构偏置位移优化及控制模拟研究”(202111551008);重庆市教委科学技术项目“基于多源信息的连续管钻井定向器肋板轨迹规划及智能控制方法研究”(KJQN201901544)。

摘　　要：为了提高连续管肋式定向器井眼轨迹控制效果及定向效率,结合最小能量原则,建立了肋式定向器执行机构偏置位移矢量模型。根据旋转偏置位移理论对定向器的执行机构进行偏置位移矢量合成与分解、分位移矢量求解、工作过程与工具面数学关系分析,提出了分位移矢量计算方法。并结合实际工程中的设计要求,采用就近原则和最小能量原则进行三翼肋分位移矢量计算。综合考虑井眼扩大、实际钻进时定向器外套的转动等影响,建立了连续管定向器纠偏过程中“定向模式”及“保持模式”的肋位移控制方案,得到了肋位移变化的规律。研究结果表明:连续管钻井肋式定向器工作过程中,单肋位移的幅值决定了合位移的大小;在导向过程中,当三翼肋工具面角相隔120°时,某些运动规律相同;连续管钻井进入斜直井段时,此时不存在工具面,此时属于“钻进模式”,各肋位移相同。所得结论可为连续管钻井肋式定向器导向控制提供理论基础。In order to improve the well trajectory control performance and orientation efficiency of the rib-type orientation tool for coiled tubing drilling,the actuator offset displacement vector model of the rib-type orientation tool was established following the principle of minimum energy.Through the composing and decomposing of the actuator offset displacement,solution of the displacement component vector,and investigation on the mathematic correlation between the operation process and the tool face according to the theory of rotary offset displacement,the calculation method of the displacement component vector was proposed.Moreover,given the actual engineering design requirement,the displacement component vector of the triple-rib orientation tool was calculated following the principles of proximity and minimum energy.The rib displacement control schemes with the“directional”and“holding”modes of the orientation tool during deviation correction were developed with consideration to the borehole enlargement and the effects of the tool jacket rotation during drilling,and the variation pattern of the rib displacement was obtained.The research results show that the displacement magnitude of a single rib determines the magnitude of the resultant displacement,during the operation of the rib-type orientation tool for coiled tubing drilling;the triple ribs with tool face azimuths gapped by 120°share some identical motion patterns during steering;coiled tubing drilling of a slant hole is associated with no tool face and represents the“drilling”mode characterized by identical displacement of each rib.The research results provide a theoretical basis for steering control of the rib-type orientation tool for coiled tubing drilling.

关 键 词：连续管钻井 肋式定向器 执行机构 偏置位移 优化研究 

分 类 号：TE921[石油与天然气工程—石油机械设备]