High-temperature high-pressure foam liquid dynamic filtration evaluation system and method

An evaluation system and high-temperature and high-pressure technology, which are applied in the high-temperature and high-pressure foam liquid dynamic fluid loss evaluation system and its evaluation field, can solve the problems that the displacement pump cannot achieve strong stirring and the gas-liquid separation cannot be realized, and achieve high creativity and evaluation methods. Accurate and scientifically designed effects

Active Publication Date: 2014-08-06
伊向艺 +2
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Problems solved by technology

The main reasons why this method is not suitable for dynamic fluid loss evaluation of foam liquids are as follows: ① Foam liquid needs to be mixed with a certain gas-liquid ratio and formed after strong stirring, while the conventional dynamic fluid loss evaluation method cannot be realized by using a displacement pump Strong stirring; ② Gas-liquid separation measurement needs to be considered when measuring foam liquid filtration loss, and the conventional experimental method is not set, resulting in the inability to achieve gas-liquid separation

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  • High-temperature high-pressure foam liquid dynamic filtration evaluation system and method
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  • High-temperature high-pressure foam liquid dynamic filtration evaluation system and method

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Embodiment Construction

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and through specific embodiments. The following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.

[0027] A high-temperature and high-pressure foam liquid dynamic fluid loss evaluation system, including a fluid loss system, a core holder 6, a back pressure valve 8 and a clamper confining pressure device 7, the fluid loss system is connected to the core holder, and the core A rock core 5 is coaxially embedded in the holder, a return pressure valve is connected to the outlet end of the rock core holder, and a holder confining pressure increasing device is also connected to the rock core holder.

[0028] The innovation point of the present invention is:

[0029] 1. The filter loss system includes a filter loss chamber 4 and a paddle agitator 12, a paddle agitator is coaxially installed in the filter ...

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Abstract

The invention relates to a high-temperature high-pressure foam liquid dynamic filtration evaluation system and method. A filtration system comprises a filtration chamber and a stirrer, wherein a paddle-type stirrer is mounted in the filtration chamber; bubbled liquid and gas are mixed fully and uniformly, and meanwhile, the foam liquid is driven to rotate and move relative to the surface of a rock core; the filtration chamber is connected with a gas supercharging device and a heating device respectively; the gas supercharging device can ensure the filtration pressure in the filtration chamber to keep stable; a gas-liquid separator is connected with the outlet end of a back-pressure valve; the gas-liquid separator is connected with a gas metering device and a liquid metering device respectively. The high-temperature high-pressure foam liquid dynamic filtration evaluation system and method provided by the invention have the advantages that the system is scientific and reasonable in design, the evaluation method is accurate, and higher creativity is achieved.

Description

technical field [0001] The invention belongs to the field of petroleum and natural gas engineering, and relates to indoor experimental evaluation of oil and gas field exploitation technology, in particular to a high-temperature and high-pressure foam liquid dynamic filtration evaluation system and an evaluation method thereof. Background technique [0002] The conventional liquid dynamic fluid loss evaluation method is to use the displacement pump to displace the liquid into the pipeline, flow and shear in the pipeline at a certain shear rate, and flow through the end face of the rock core in the liquid cavity, and then measure the filtration rate of the liquid. loss and time. The main reasons why this method is not suitable for dynamic fluid loss evaluation of foam liquids are as follows: ① Foam liquid needs to be mixed with a certain gas-liquid ratio and formed after strong stirring, while the conventional dynamic fluid loss evaluation method cannot be realized by using a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N13/04
Inventor 伊向艺李沁刘伟曹海涛孙骏单奕赵辛
Owner 伊向艺
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