Technical difficulties in the cementing of horizontal shale gas wells in Weiyuan block and the countermeasures
When well cementing is conducted in horizontal shale gas wells in Weiyuan block of the Weiyuan–Changning State Shale Demonstration Area, Sichuan Basin, the oil-based drilling fluid is not compatible with cement slurry, is difficult to be displaced because of its high density, and cement sheath tends...
Main Authors: | , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
KeAi Communications Co., Ltd.
2016-05-01
|
Series: | Natural Gas Industry B |
Subjects: | |
Online Access: | http://www.sciencedirect.com/science/article/pii/S2352854016300614 |