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If the drilling fluid loses too much water, what is the impact on the drilling construction?
Release time:
2019-09-21
Author:
Source:
1 If the drilling fluid loses too much water, the mud cake will be thickened, the frictional resistance between the drilling tool and the borehole wall will be increased, and sticking will easily occur.
2 Under the action of the pressure of the drilling fluid column, it seeps into the borehole wall, causing some formations that swell in water to shrink or collapse, and even cause sticking.
3 Due to the shrinkage in the well, the piston is often pulled out during drilling.
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