斯伦贝谢PCTH压控测试阀简介
WELL TESTING（2004）
Abstract
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.
MoreAI Read Science
Must-Reading Tree
Example
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined