Visualization microscopic experimental device and method for displacing super heavy oil by using high-temperature high-pressure carbon dioxide

A technology of carbon dioxide, high temperature and high pressure, applied in the fields of earth drilling, climate sustainability, sustainable manufacturing/processing, etc., to achieve the effect of simple operation, superior safety performance, and simple temperature and pressure control technology

Active Publication Date: 2017-02-22
UNIV OF SCI & TECH BEIJING
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  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a high-temperature and high-pressure carbon dioxide flooding super heavy oil visualization micro-experimental device and meth...

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  • Visualization microscopic experimental device and method for displacing super heavy oil by using high-temperature high-pressure carbon dioxide
  • Visualization microscopic experimental device and method for displacing super heavy oil by using high-temperature high-pressure carbon dioxide

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Embodiment Construction

[0037] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0038] The invention provides a high-temperature and high-pressure carbon dioxide flooding super-heavy oil visualization micro-experiment device and method.

[0039] Such as figure 1 As shown, the model holder 24 in this device is the core of the experimental system, and its main function is to provide a high-pressure external environment and a suitable constant temperature condition for the microscopic visual model 30. At the same time, provide external pipelines and the model holder 24 interface, to realize various experimental studies under formation conditions by using ordinary microscopic experimental models. Through the upper and lower observation windows provided by the quartz glass, the fluid flow in the microscopic visualization model 30 , the ...

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Abstract

The invention provides a visualization microscopic experimental device and a visualization microscopic experimental method for displacing super heavy oil by using high-temperature high-pressure carbon dioxide, and belongs to the technical field of oil production. The device comprises a model clamper clamping a microscopic visual model, a replacement system, a back pressure system, a confining pressure system, a pressure monitoring system, a temperature control system and an image acquisition system. The device can control temperature and pressure simply and conveniently, has a small use space, is superior in safety performance, is simple and convenient to operate, can accurately simulate an oil reservoir actual condition, can clearly observe oil-gas action changes during carbon dioxide displacement in real time under a visual condition, and has very important significances for researching a precipitation law of asphaltene, the influence of the precipitation law on the recovery ratio, and the widespread use and promotion of a carbon dioxide displacement experiment in the petroleum industry.

Description

technical field [0001] The invention relates to the technical field of petroleum exploitation, in particular to a high-temperature and high-pressure carbon dioxide flooding super-heavy oil visualization microscopic experimental device and method. Background technique [0002] The technical research on the interaction between carbon dioxide and petroleum hydrocarbons in the porous medium of oil reservoir environment is a comprehensive technology that uses carbon dioxide to change the composition and fluidity of petroleum hydrocarbons, thereby enhancing oil recovery. After continuous research and field tests in recent years, the application of carbon dioxide in oilfields has made great progress. Using carbon dioxide to huff and puff oil wells with high wax content and oil wells blocked by organic matter precipitation has become a conventional production stimulation technology; carbon dioxide flooding Enhanced oil recovery also has a strong technical accumulation, and carbon di...

Claims

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Application Information

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IPC IPC(8): E21B43/16E21B43/34
CPCY02P90/70E21B43/164E21B43/34
Inventor 朱维耀宋智勇韩宏彦岳明宋洪庆杨连枝范盼伟李兵兵
Owner UNIV OF SCI & TECH BEIJING
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