A sealed coring tool relief device, belonging to the oil and gas coring equipment manufacturing technology field, including the promotion device and plug in the promotion mechanism, before and after the device are respectively connected with the handle and the promotion of joint; the plug mechanism comprises a foreign joint and pressure relief plug, foreign joint two terminal is respectively connected with the external thread. And the six corners of the connecting rod, the pressure relief plug both ends is sealed in the head six and threaded hole; the invention according to the design method of pressure relief after disassembly, provides a convenient pressure sealed coring tools pressure relief devices, solved using the tools of loose balance piston promoted. Due to the sudden pressure relief cause balance piston bomb wounding problem, has achieved the first discharge characteristics of pressure coring.
【技术实现步骤摘要】
【技术保护点】
１．一种密闭取心工具泄压装置，包括提拔装置和堵头机构，其特征在于：所述提拔装置包括手柄，连接杆和提拔接头，连接杆的前后端分别连接手柄和提拔接头，提拔接头设置有内螺纹和外螺纹，内螺纹与外方接头的外螺纹连接帽连接，外螺纹与平衡活塞前端内圆的丝扣连接；所述堵头机构包括外方接头和泄压堵头，外方接头的一端有外螺纹连接帽，另一端带有外六角连接杆，泄压堵头一端带有内六方沉孔，另一端的外圆是带有螺纹的密封头，外方接头的六角连接杆与泄压堵头的内六方沉孔连接。
【技术特征摘要】
【专利技术属性】
技术研发人员：胡畔，刘彬，陈立，王志，邓元洲，
申请(专利权)人：中国石油集团川庆钻探工程有限公司，
类型：发明
国别省市：90
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。