P31-01 高温・高圧・大深度地下におけるパルス弁駆動動力に関するシステム

概要

論文の詳細を見る
MWD system enables real-time acquisition and analysis of bottom hole information such as azimuth, inclination and temperature under drilling in the ground. The system can operate under high temperature and hyperbaric atmosphere of 200℃ and 100MPa. It has been composed of pulsar-valve, contact switch for the valve switching control, DC motor, control of drive circuit, power supply stabilization circuit, and battery in order to transmit the signal to the ground. In this paper the following are described : Development of the DC motor that drives intermittently, development of electronic device, power saving, noise counter plan, battery protection circuit, and technology of the control logic under high temperature environment.
一般社団法人日本機械学会の論文
2002-06-14