Method for co-mining of terrestrial heat and oil gas in oil or gas mining
The invention relates to the technical field of development of geothermal energy, in particular to a method for co-mining of terrestrial heat and oil gas in oil or gas mining. The method comprises thefollowing process flows: drilling a producing well, then running a casing and performing cementing,...
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Main Author | |
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Format | Patent |
Language | Chinese English |
Published |
25.06.2019
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Subjects | |
Online Access | Get full text |
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Summary: | The invention relates to the technical field of development of geothermal energy, in particular to a method for co-mining of terrestrial heat and oil gas in oil or gas mining. The method comprises thefollowing process flows: drilling a producing well, then running a casing and performing cementing, performing heat conduction cementing in a stratum high-temperature segment, and performing heat insulation cementing in a stratum low-temperature segment; performing perforation and fracture from the casing in an oil layer or a gas layer and taking as production channels, performing segmented perforation and fracture from the casing to a rock stratum within different heights, positioned in the stratum high-temperature segment, above the oil layer or the gas layer, and filling cracks with heat conductive fillers so as to form heat conduction bands extending from the casing to the rock stratum; running short pipes into positions of segmented perforation, and enabling expanding pipes to seal through holes ejected from |
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Bibliography: | Application Number: CN201910312746 |