Collection method of saline bearing brine reservoir brine and solid salts

Abstract

The invention belongs to the technical field of salt lake resources exploitation, in particular to a collecting method of salt lake bearing brine-storing layer brine and solid salts. The steps of the method comprise employing a trenchless construction drill to construct and arrange solvent floral tubes obliquely downwards for the bearing brine-storing layer, feeding solvent in the bearing brine-storing layer from the upper end of the solvent floral tubes, then constructing and arranging pumping floral tubes obliquely downwards for the bearing brine-storing layer and transporting the brine of the bearing brine-storing layer and the dissolved solid salts to the ground surface. According to preliminary estimate, the method can save more than 50% capital investment, can save more than 33% operating and maintenance cost of exploiting and transporting the brine, adds about 1-5 times of the exploitation quantity of the brine and the solid salts resources, and enables 'dead mine' to change into live mine, thereby having relatively large economic benefit and social benefit.

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 modern salt lake resources, only rich ore brine and solid salts located in the shallow surface can be mined. The method of mining rich ore brine is direct suction, while solid salts are directly excavated or dissolved in fresh water. The method of pumping brine is used for mining. However, these resources located on the shallow surface are limited, usually only accounting for 1 / 10 to 3 / 10 of the total resources of the salt lake. The mining and utilization of human resources is a technical problem that people urgently need to solve. However, the geological age of the formation of the pressurized brine storage layer is a little longer, and it has experienced geological structure ch...

AI Technical Summary

Problems solved by technology

The traditional mining method is to adopt the mining scheme of drilling-pumping-pipeline transportation. This scheme requires the construction of a large number of brine mining wells to increase the cost of brine mining for mine layers with small porosity and water supply, and there will be The problem of salt accumulation in the well pipe, and because of the high specificity and viscosity of brine, the recovery rate of brine is lower