Multiple-interlayer salt cavern gas storage and building method of multiple-interlayer salt cavern gas storage
A construction method and technology for gas storage, which are applied in earth-moving drilling, mining equipment, mining equipment, etc., can solve the problems of low strength, small thickness, collapse, etc., and achieve strong operability, good generalizability, and increased cost. Effect
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[0020] Such as figure 1 As shown, the multi-interlayer salt cavern gas storage includes a salt cavern 5 and a natural gas injection and production string system 6; the natural gas injection and production string system 6 is connected to the top of the salt cavern 5; from the ground 7 downwards are the top mudstone 1, multiple interlayers Salt rock 2, bottom mudstone 3; multi-interlayer salt rock is composed of salt layers and interlayers, and the salt layers and interlayers appear alternately; the salt cavern is located in the multi-interlayer salt rock, and the top surface 4 of the salt cavern is circular. From the bottom surface of the mudstone at the top to the top surface of the salt cavern are the first salt salt layer 21, the interlayer 22 and the second salt salt layer 23 in sequence. The top buried depth of the salt cavern is 951.2m, the bottom buried depth is 1045m, the minimum operating pressure is 6MPa and the minimum pressure operating time is 45 days. The design v...
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