- It is a zone of abnormal pressure.
- A zone of abnormal pressure has been drilled into.
- Abnormal pressure happens to the LNG piping.
- The control of abnormal pressure on deep oil/gas pool formation in Qibei sag.
- The abnormal pressure reservoir is ubiquity and the genetic of it is diverse.
- According to the PPD derivative,the reason of the appearance of abnormal pressure is rightly estimated in this paper.