Exploration method for pressure bearing stored bitter and solid salts in saline

Abstract

The invention belongs to the technical field of saline resource exploration, and in particular relates to an exploration method for pressure bearing stored bitter and solid salts in saline. The exploration method comprises the following steps: constructing and arranging shock tubes on a salt bed in a pressure bearing bitter storage layer by adopting a non digging directional pipe-laying drilling machine; inputting a selected solvent to the pressure bearing bitter storage layer at the soil inlet ends of the shock tubes, dissolving solid potassium magnesian salt minerals; and then sucking newly generated bitter inside and outside the shock tubes at the soil outlets of the shock tubes and conveying the bitter to the ground for use. Compared with the prior art, the exploration method greatly saves the construction investment, can eliminate the trouble of aggregating salt deposit during the sucking, substantially reduce the expense for exploring, transporting and maintaining the bitter, ensure that resources in the pressure bearing bitter storage layer of the saline cannot become useless mineral, can greatly reduce the consumption of fresh water resource and can explore solid salt and bitter resources in the lower layer.

Description

1. Technical field: [0001] The invention belongs to the technical field of salt lake resource exploitation, and in particular relates to a method for mining brine and solid salts in a pressure brine storage layer of a salt lake. 2. Background technology: [0002] At present, in the exploitation of salt lake resources in our country, only the brine mines and solid salts in the shallow part can be mined: the method of mining brine mines is to excavate ditches for suction; while the solid salts are directly excavated or dissolved in fresh water. The method of pumping the aqueous solution is mined. However, these resources located in the shallow surface of the mining area are very limited, usually only accounting for 1 / 10 to 3 / 10 of the total resources of the salt lake. The mining and utilization of associated solid soluble salts has become a technical problem that people urgently need to solve. Since the geological age of the formation of the confined brine storage layer is a...

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Problems solved by technology

Since the newly poured river water changes into nascent brine after dissolving ore on the surface, although its proportion gradually increases, it is still much smaller than that of the original brine in the underlying brine storage layer, and is restricted by gravity differentiation. The nascent brine cannot infiltrate to the part below the original brine water level at the bottom of the canal, so the original brine ore and solid potassium and magnesium salt resources in the underlying brine storage layer are still unable to be exploited and utilized. Therefore, this flood irrigation water-soluble mining method on the surface In fact, it cannot be used to exploit brine and solid soluble salts in brine reservoirs that are buried slightly deeper

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