System and method for testing biological effect of water under supercritical CO 2 phase change pulse

A biological effect and test system technology, which is applied in the field of water biological effect test system under supercritical CO2 phase change pulse, can solve the problems of water shock wave biological effect hysteresis engineering application, affecting the promotion and application of phase change expansion fracturing technology, etc.
CN110440980AInactive Publication Date: 2019-11-12CHONGQING JIAOTONG UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHONGQING JIAOTONG UNIVERSITY
Publication Date
2019-11-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a system for testing the biological effect of water under supercritical CO 2 phase change pulse. The system comprises a fracturing pipe and a data acquisition device, wherein the fracturing pipe is arranged in a rock stratum below a water surface, liquid CO 2 is filled in the fracturing pipe and is connected with a fracturing control system, and after the fracturing controlsystem sends out a control instruction, the fracturing pipe is heated instantly to enable liquid CO 2 to complete phase change fracturing so as to break the rock stratum; and the data acquisition device is arranged outside the rock stratum and at the radial position of the fracturing pipe and is used for acquiring water shock wave pressures at a plurality of positions when the rock stratum is cracked. The system and method for testing the biological effect of water under supercritical CO 2 phase change pulse, provided by the invention, have the advantages that: the water shock wave generatedwhen the rock stratum is cracked is collected by utilizing the pressure sensors which are arranged outside the rock stratum and are positioned at the radial position of the fracturing pipe and are simultaneously arranged in layers, the arrangement mode of the pressure sensors accords with the transmission path of the water shock wave, and a foundation is laid for establishing an shock pressure attenuation equation.
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Description

technical field

[0001] The invention relates to the technical field of underwater reef removal and rock breaking, in particular to a supercritical CO 2 A system and method for testing water biological effects under phase change pulses. Background technique

[0002] At present, common reef removal methods include mechanical rock breaking, water jet rock breaking, hydraulic fracturing rock breaking, chemical blasting, etc. However, due to the complex river bed topography and water flow conditions, underwater mechanical construction is more difficult. However, the blasting of traditional emulsion explosives produces a large amount of toxic and harmful gases and dust, and the water shock wave caused by it is extremely harmful to the four major family fishes and rare fishes in the Yangtze River Basin. , low noise, pollution-free, safe and environmentally friendly non-chemical explosive underwater rock breaking new technology.

[0003] Liquid CO 2 Phase change expansion fractu...

Claims

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