Well cementation method for treating shallow surface layer leakage of oil and gas well
The invention relates to the technical field of oil exploration, in particular to a well cementation method for treating shallow surface layer leakage of an oil and gas well. The method comprises the steps that (1) plugging drilling fluid is conveyed to a leakage layer to displace drilling fluid in...
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Format: | Patent |
Sprache: | chi ; eng |
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