发明授权
- 专利标题： Method and apparatus for monitoring and recording of the operating condition of a downhole drill bit during drilling operations
- 专利标题（中）： 在钻井操作期间监测和记录井下钻头的操作状态的方法和装置
-
申请号： US09777332申请日： 2001-02-06
-
公开(公告)号： US06543312B2公开(公告)日： 2003-04-08
- 发明人: Eric Charles Sullivan , Theodore Edward Zaleski, Jr. , Scott Ray Schmidt , Don Quy Nguyen , Glenn R. Zadrapa , Chih Lin
- 申请人： Eric Charles Sullivan , Theodore Edward Zaleski, Jr. , Scott Ray Schmidt , Don Quy Nguyen , Glenn R. Zadrapa , Chih Lin
- 主分类号： B21K502
- IPC分类号： B21K502
摘要：
A drill bit for use in drilling operations in a wellbore, the drill bit having a bit body including a plurality of bit legs, each supporting a rolling cone cutter; a coupling member formed at an upper portion of the bit body; at least one temperature sensor for monitoring at least one temperature condition of the improved drill bit during drilling operations; and at least one temperature sensor cavity formed in the bit body and adapted for receiving, carrying, and locating the at least one temperature sensor in a particular position relative to the bit body which is empirically determined to optimize temperature sensor discrimination.
公开/授权文献
信息查询
