Method for Measuring Filtration Coefficient of Supercritical Carbon Dioxide Fracturing Fluid
A carbon dioxide, supercritical technology that can be used in measurement devices, surface/boundary effects, suspension and porous material analysis, etc., to solve problems such as narrowing of cracks, sand plugging, and unsatisfactory stimulation effects.
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[0023] Such as figure 1 As shown, the device for measuring the fluid loss coefficient of supercritical carbon dioxide fracturing fluid includes: gas injection system 1, pressure control system 2, experimental model system 3 and measurement system 4; gas injection system 1 injects methane or carbon dioxide into the experimental model system 3 , the pressure control system 2 provides pressure for the experimental model system 3 and the gas injection system 1, the experimental model system 3 provides a high temperature and high pressure formation environment for the experiment, and the measurement system 4 measures the volume of different gases flowing out during the experiment.
[0024] The gas injection system 1 includes: a gas storage tank 11, a gas booster pump 12, a gas output screw valve 13, the gas storage tank 11, a gas booster pump 12, and a gas output screw valve 13 are connected in sequence through pipelines, and the gas storage tank 11 is a standard stainless steel ga...
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