(1) The self-spraying method is a mining method that relies entirely on the powerful energy of the underground brine layer to drive the brine to flow from the various aspects to the bottom of the well after the completion of the brine well, and then lifts it to the ground. This method is suitable for underground brine deposits with high pressure in the brine layer and self-spraying capability.

(2) Gas lift mining method is a method of injecting high-pressure natural gas (or artificially pressurized high-pressure gas) into a brine well to mix it with the well fluid, reduce the density of the well fluid, and reduce the back pressure of the well bottom. The brine with insufficient spray capacity flows from the source of the halogen-bearing formation to the bottom of the well, and then lifts it from the bottom of the well to the well. This method is applicable to deep wells, inclined wells, curved wells, a large number of sand wells and brine wells containing corrosive components; it is also applicable to brine wells with free gas in the well and having an impact on other mechanical mining efficiency.

(3) Electric centrifugal sinking pump The electric centrifugal centrifugal pump (referred to as no pump) is a multi-stage centrifugal pump for small diameter, large displacement and high lift for underground brine mining. This method requires that the amount of replenishment of the brine is greater than that of the sinking pump, and the quality of the well and the cementing well is good.

(4) Pumping unit halogen extraction method The essence of this method is the extension of the petroleum industry process. Downhole equipment is mainly pumping (halogen) rods and pumping (halogen) pumps. This method is simple in operation and easy to maintain, but it is suitable for shallow wells and medium-deep wells with low daily output due to small output and high cost. It is required to have less sand and hydrogen sulfide in brine.

Matting Agent For UV Coatings

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