Method for extracting shale oil gas through in-situ catalytic oxidation of oil shale
An in-situ catalysis and shale oil and gas technology, which is applied in the petroleum industry, earth drilling, and hydrocarbon oil treatment, can solve the problems of slow oil shale cracking reaction, low energy utilization rate, and large floor area, etc. Porosity, improved energy efficiency, effect of increased porosity
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[0037] see figure 1 Shown, be the first embodiment of the present invention, its pattern of well arrangement is double well form, and its specific implementation is as follows:
[0038] The burial depth of oil shale in a certain place is 65m-75m, with an average oil content of 6%, water content of 4%, and fixed carbon of 21%. The roof and floor are both tight shale. Concrete implementation steps are as follows:
[0039] (1) drilling and completion
[0040] a. According to the distribution and trend of oil shale, use advanced drilling technology to drill at least one gas injection well 1 and production well 2 to the depth of the target oil shale layer to a depth of 77m, and the gas injection well 1 and production well 2 adopt the same well depth structure.
[0041] b. Establish a fracturing chamber in the heat injection well 1, and perforate in the direction of the production well 2 at intervals of one meter in the 66m-74m section of the casing of the heat injection well 1, a...
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