论文部分内容阅读
专利申请号:CN201310717952.0公开号:CN103696761A申请日:2013.12.24公开日:2014.04.02申请人:西安石油大学本发明涉及一种随钻声波测井换能器短节。恶劣的井下钻井条件给随钻测井技术带来了不利的应用环境,具体表现在钻杆与井壁间不断的强烈碰撞,以及井下充斥的高压、高温泥浆对敏感的声系统和电气元件构成严重威胁。一种随钻声波测井换能器短节,包括钻铤和密封套筒,其特征在于:所述位于密封套筒内的钻铤的两个不同的横截面
Patent application number: CN201310717952.0 Publication number: CN103696761A Date of application: 2013.12.24 Date of publication: 2014.04.02 Applicant: Xi’an Shiyou University The present invention relates to a short section of a LWD acoustic transducer. Bad downhole drilling conditions have brought unfavorable application environment to LWD technology, which is manifested in the continuous strong collision between the drill pipe and the well wall as well as the high pressure and high temperature mud flooded down to the sensitive acoustic system and electrical components serious threat. A LWD acoustic wave transducer transducer short section includes a drill collar and a seal sleeve, characterized in that two different cross-sections of the drill collar located in the seal sleeve