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A Simulation Experimental Method for Flow Field and Concentration Field of Water Dissolution Cavity in Counter-well of Salt Rock

A technology for simulating experiments and concentration fields, which is applied in fluid dynamics tests, machine/structural component tests, instruments, etc., can solve problems such as limited numerical simulation calculations and few physical models, and achieve shortening the cycle period of cavity building and large The effect of economic benefits

Active Publication Date: 2019-07-26
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

At present, domestic and foreign studies on water-solution cavity-making of wells mostly focus on the dissolution characteristics, cavity stability and mechanical properties, and there are few analysis of the flow field migration law and concentration distribution characteristics of well-salt rock solution cavity from the perspective of flow field. The flow field of the well dissolution cavity is also limited to numerical simulation calculations, and there are few physical model experimental data

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  • A Simulation Experimental Method for Flow Field and Concentration Field of Water Dissolution Cavity in Counter-well of Salt Rock
  • A Simulation Experimental Method for Flow Field and Concentration Field of Water Dissolution Cavity in Counter-well of Salt Rock

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] A method for simulating the flow field and concentration field of a water solution cavity in a salt rock counter-well, comprising the following steps:

[0025] S1. Introduce the similarity theory, and build a large-scale visual simulation experiment device for the flow field and concentration field of the water-soluble cavity in the well;

[0026] Such as figure 1 As shown, the simul...

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Abstract

The present invention relates to a salt rock butted-well water solution cavity body flow field and concentration field stimulation experiment method. The method comprises the steps of: constructing abutted-well water solution cavity flow field and concentration field stimulation experiment device; processing a salt rock test piece, and preparing brine; connecting an experiment system; performingexperiment steps; and processing experiment data. The method provided by the invention presents complex characteristics of the actual flow field, researches a key effect of the flow of the solution cavity fluid on the extension of the cavity shape, achieves combination of engineering practice and a fluid theory, explores the general characteristics of the complex flow field of the butted-well solution cavity and obtains optimal production parameters in a technical process, so that the cavity construction cycle time is shortened, more economic benefits are created, requirements of practical application are satisfied.

Description

technical field [0001] The invention relates to a method for simulating the flow field and the concentration field of the water-soluble cavity of a salt rock opposite well. Background technique [0002] In the process of salt rock mining and salt rock water-solution cavity building process, whether the shape of the cavity can be well controlled is an important factor related to the recovery rate of the salt mine and the success of cavity construction. At present, domestic and foreign studies on water-solution cavity-making of wells mostly focus on the dissolution characteristics, cavity stability and mechanical properties, and there are few analysis of the flow field migration law and concentration distribution characteristics of well-salt rock solution cavity from the perspective of flow field. The flow field of the well dissolution cavity is also limited to numerical simulation calculations, and there are few physical model experimental data. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M10/00
Inventor 唐海军唐礼骅戴鑫张格高丽
Owner CHINA PETROLEUM & CHEM CORP
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