Measuring apparatus and method for supercritical carbon dioxide fracturing fluid leakoff coefficient
2014
The present invention belongs to the technical field stimulation unconventional, in particular, apparatus and method for supercritical carbon dioxide fracturing fluid leakoff coefficient relates to a measure for determining the filtration coefficient supercritical carbon dioxide fracturing fluid. It means supercritical carbon dioxide fluid loss coefficient fracturing fluid, comprising measuring: a gas injection system, pressure control system, measurement system and experimental model systems; methane gas or carbon dioxide injection system injecting experimental model system, pressure control system for the experimental model systems and providing a pressure gas injection system, provide experimental model system to test the formation environment of high temperature and pressure, the volume of different gases during the experiment measuring system flowing. The temperature of the device of the present invention, the pressure can be adjusted to meet the carbon dioxide in a supercritical state of high temperature, high pressure environments and can factually study law supercritical carbon dioxide fluid loss fracturing fluid at different temperature and pressure conditions.
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