随钻测斜仪中传感器信号处理技术研究  

Research on Signal Processing Technique of Sensors in MWD

作　　者：张玉波[1] 孟耀华[2] 魏春明[3] 信秋礼 

机构地区：[1]大庆石油学院,黑龙江大庆163318 [2]黑龙江八一农垦大学,黑龙江大庆163319 [3]大港油田集团定向井公司,天津大港区300270 [4]大庆采油四厂三矿测试队,黑龙江大庆163511

出　　处：《昆明理工大学学报（理工版）》2010年第2期72-75,共4页Journal of Kunming University of Science and Technology(Natural Science Edition)

基　　金：黑龙江省科技攻关项目(GZ07A102)

摘　　要：传感器信号处理的好坏会直接影响随钻测斜仪的测量精度和井眼控制水平.通过选取适当的拟合函数构造电路对传感器的非线性信号进行处理,实现其线性化;从测斜仪的原理出发,采用误差补偿算法和数字滤波技术减少随钻测斜仪的测量误差.确保随钻测斜仪的井斜角的误差≤±0.1°,方位角的误差≤±1,°满足高精度随钻测斜仪的设计要求.The precision of sensors in MWD and the control of hole trajectory are influenced directly by the quality of signal processing. Nonlinear signals of sensors are processed by choosing appropriate fitting functions and constructing circuit to make it linear. Error compensation algorithm and digital filtering technique are adopted to reduce measurement error departed from principle of MWD. The method makes sure that the INC error is lower ±0.1°and the Az error is lower ≤±1°in MWD, which meet the requirements of designing high-accuracy MWD.

关 键 词：随钻测斜仪 实时测量 信号处理 

分 类 号：TP202[自动化与计算机技术—检测技术与自动化装置]