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Salt strata drilling and channeling method based on high-speed water jet technology

A water jet and salt rock technology, which is used in liquid/gas jet drilling, earthwork drilling, hydraulic mining, etc., can solve the problems of slow speed, high cost, low efficiency, etc., and achieve shortened time, low cost, and expanded application. field effect

Active Publication Date: 2012-12-05
DARDI INT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to invent a salt rock formation drilling and slotting method based on high-speed water jet technology in order to solve the problems of slow speed, high cost and low efficiency in the current salt rock geological drilling.

Method used

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  • Salt strata drilling and channeling method based on high-speed water jet technology
  • Salt strata drilling and channeling method based on high-speed water jet technology
  • Salt strata drilling and channeling method based on high-speed water jet technology

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Experimental program
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Effect test

Embodiment 1

[0022] A salt rock formation drilling method based on high-speed water jet technology, using water jet technology to pressurize ordinary water through a supercharger to an ultra-high pressure water above 200MPa, and then send it into the high-speed rotary nozzle, so that the water injected from the nozzle of the high-speed rotary nozzle High-pressure water acts on the salt rock and beats it into broken particles. At the same time, the broken granular salt rock is taken out of the well by an air negative pressure pump, repeatedly hit and sucked out until the required brine well is formed, and then reciprocated to move The high-pressure nozzles process brine seepage grooves between adjacent brine wells (such as figure 1 shown), so that the adjacent brine wells communicate with each other and connect into a structure similar to a checkerboard (such as figure 2 shown), the drilling depth can be determined according to the thickness of the local salt layer (generally 20-60 meters)...

Embodiment 2

[0025] A method for slotting salt rock formations based on high-speed water jet technology, which uses water jet technology to pressurize ordinary water through a supercharger to an ultra-high pressure water above 200MPa, and then sends it into the cutting nozzle, so that the nozzles of the cutting nozzle are injected The reciprocating high-pressure water (feeding motion perpendicular to the length direction of the brine seepage tank at the same time) acts on the salt rock and breaks it into broken particles to form a brine seepage tank. Remove from the well until the desired brine tank is formed.

[0026] During specific implementation, the high-speed rotary nozzle of Embodiment 1 can also be used for slotting. At this time, the high-speed rotary nozzle should be reciprocated along the linear guide rail while rotating.

[0027] In addition, two adjacent thin grooves can also be processed first, and then the salt rock in the adjacent thin grooves can be taken out by an excavat...

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Abstract

The invention relates to a salt strata drilling and channeling method based on a high-speed water jet technology. The salt strata drilling and channeling method is characterized by comprising the following steps: firstly, pressurizing common water to ultra-pressure water of more than 200MPa by a pressurizer through adopting the water jet technology; secondly, sending the ultra-pressure water intoa high-speed rotating spray head or reciprocate spray head so as to lead high pressure water jetted by the nozzle of the high-speed rotating spray head or reciprocate spray head to act on salt strataand strike the salt strata into ground salt strata to form a section or groove; thirdly, taking the ground granular salt strata in the section or groove by using a suction device; and repeating the step 2 and the step 3 until a brine well with required diameter and depth or a brine guide groove with required width and depth is formed. The invention has the advantages of simple method, low construction cost and high efficiency.

Description

technical field [0001] The invention relates to a mining method of a special geological deposit, especially a method of drilling and slotting brine in a salt rock stratum, specifically a method of drilling and slotting a salt rock stratum based on high-speed water jet technology method. Background technique [0002] At present, most of the raw materials required by the alkali, potassium, chlorine, and lithium industries come from the brine under the salt mine, and the current common method for collecting brine is to drill wells on the salt rock formation, and then set up interconnected wells between the wells. Brine soaking tanks to increase permeability, such as figure 1 As shown, a grid-like structure is finally formed, such as figure 2 shown. Due to the special structure of salt rock geology, its strength is far lower than that of rock and higher than that of soil. Its main natural state is mainly in the form of brittle crystals, similar to the structure of ice cubes....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C45/00E21B7/18
Inventor 陈波
Owner DARDI INT CORP