斯伦贝谢PCTH压控测试阀简介  

Brief Introduction of Halliburton PCTH Testing Valve

作　　者：白学东[1] 张麦云[1] 赵朝阳[2] 常洪刚 

机构地区：[1]中原油田井下特种作业处,河南濮阳457164 [2]华北油田采油四厂,河北廊坊065007

出　　处：《油气井测试》2004年第4期77-79,共3页Well Testing

摘　　要：许多种压控测试阀均是通过环空加泵压打开 ,泄掉泵压关闭 ,开井过程中环空始终保持一定的开启压力。PCTH测试阀可实现持开的功能 ,环空泄压后仍能保持开启状态 ,使用起来更加方便、灵活。Many pressure dominated testing valve is through pumping of relieving annulus pressure to realize open or shut down hole test valve and keep annulus pressure for certain all the time.PCTH tested valve has the function of being open state constantly and that keeping on open after annulus pressure relived out makes it much handy and be liable to be used.

关 键 词：PCTH 压控测试阀 压控系统 环空压力 球阀操纵器 密封件 

分 类 号：TE927.7[石油与天然气工程—石油机械设备]