导向钻井工具姿态动态测量的自适应滤波方法  

Adaptive Filtering Method for Dynamic Measurement of Steering Drilling Tool Attitude

作　　者：贺艳[1,2] 汪跃龙[1] 高怡[1] 王彤[1] 李雨丹[1] 

机构地区：[1]西安石油大学电子工程学院,陕西西安710065 [2]陕西电子科技职业学院,陕西西安710125

出　　处：《西安石油大学学报（自然科学版）》2016年第6期108-113,共6页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：国家自然科学基金(编号:51604226);陕西省教育厅重点实验室科研计划项目(编号:16JS090)

摘　　要：垂直导向钻井工具在近钻头振动和工具旋转的钻井工作状态下,工具姿态参数的动态测量精度不高。为此,通过理论分析和数值仿真,提出了转速补偿的算法以消除工具旋转对测量的影响;采用最小均方算法(Least Mean Square—LMS)自适应滤波算法,可以有效滤除近钻头振动对测量的影响。数值仿真表明,经过转速补偿和LMS自适应滤波后的井斜角测量误差可小于0.1°,工具面角测量误差小于6°,有效地提高了垂直导向钻井工具的动态测量精度。Under drilling condition, the vertical steering drilling tool is in the state of vibration and rotation, and the dynamic measure- ment accuracy of tool attitude parameters is low. Through theoretical analysis and numerical simulation, the speed compensation algo- rithm is proposed to eliminate the influence of tool rotation on the measurement. And the influence of bit vibration on the measurement of tool attitude parameters can be effectively eliminated by least mean square （LMS） adaptive filtering algorithm. The numerical simula- tion results show that after the speed compensation and LMS adaptive filtering, the measurement error of deviation angle can be less than 0.1°, and the measurement error of tool face angle is less than 6°. The speed compensation and LMS adaptive filtering can effectively improve the dynamic measurement precision of vertical steering drilling tool.

关 键 词：导向钻井工具 动态姿态测量 LMS算法 自适应滤波器 

分 类 号：TE921.2[石油与天然气工程—石油机械设备]