Device and method for magnetic compensation of intelligent drilling tool

• Main Authors: WEI CHUNMING, BAI DAPENG, LI SHAOHUI, ZHANG MENG, JIN PING, HAN XIAOWEN, LI ZHIGUANG, ZHANG XIN
• Format: Patent
• Language: Chinese; English
• Published: 09.11.2016
• Subjects: BASIC ELECTRIC ELEMENTS; EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; ELECTRICITY; FIXED CONSTRUCTIONS; INDUCTANCES; MAGNETS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS

The invention provides a device and method for magnetic compensation of an intelligent drilling tool. The magnetic compensation device is used for conducting magnetic compensation on the intelligent drilling tool; a master controller is used for controlling a magnetometer to conduct zero calibration on a magnetic field in the central position of a cube formed by Helmholtz coils so that the Helmholtz coils can form a non-magnetic space within a certain scope; and a communication device is utilized for connecting the master controller and the intelligent drilling tool, the intelligent drilling tool is subjected to magnetic compensation, and the tool is made to meet work requirements before drilling. The device and method for magnetic compensation of the intelligent drilling tool have the advantages of being convenient to operate and accurate. 本发明提供了种用于智能钻井工具磁补偿的装置及方法，通过磁补偿装置对智能钻井工具进行磁补偿，利用总控制器控制磁力计，对亥姆霍兹线圈构成的立方体中心位置的磁场进行校0工作，使得亥姆霍兹线圈在定范围内形成无磁空间；利用通讯装置将总控制器与智能钻井工具连接，对智能钻井工具进行磁补偿，使工具达到上井前的工作要求。本发明具有便于操作、准确的优点。