A device and method for measuring the retention rate of carbon dioxide flooding process
A technology of carbon dioxide and oil displacement process, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., and can solve the problems of lack of simulation and difficulty in evaluation
Active Publication Date: 2016-03-30
CHINA UNIV OF PETROLEUM (EAST CHINA)
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Problems solved by technology
However, there is a lack of simulation of the carbon dioxide flooding process, and it is difficult to evaluate the storage potential of injected carbon dioxide in oil and gas reservoirs during the process of carbon dioxide flooding
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Embodiment Construction
[0012] Technical scheme of the present invention is as follows:
[0013] A device for measuring the retention rate of the carbon dioxide flooding process, including a formation condition simulation system, a core saturated fluid system, a carbon dioxide injection system and a carbon dioxide metering system;
[0014] The formation condition simulation system includes: a rock core sample 10, a rock core holder 11, a constant temperature box 12, a hand pump 14, a back pressure valve 15, a back pressure gas tank 21, a first pressure measuring point 8, and a second pressure measuring point 9 , the third pressure measuring point 13, the fourth pressure measuring point 20;
[0015] The core saturated fluid system includes: formation water tank 2, formation oil tank 3, six-way valve 5 and six-way valve 6;
[0016] The carbon dioxide injection system includes: a carbon dioxide gas cylinder 1, a carbon dioxide gas tank 4 and a flow pump 7;
[0017] The carbon dioxide metering system c...
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The invention relates to a device for measuring retention rate of carbon dioxide in oil displacement process. The device comprises a formation condition simulation system, a core saturated fluid system, a carbon dioxide injection system and a carbon dioxide measuring system. The invention further provides a method for measuring the retention rate of carbon dioxide in the oil displacement process, and by adopting the method, the measurement of the stage retention rate and the final retention rate of carbon dioxide in the oil displacement process of carbon dioxide can be independently completed. According to the method, a three-dimensional core is adopted as a core sample, the size can be adjusted, and the actual retention process of carbon dioxide in an oil reservoir can be simulated according to the design of similarity principle. The injection speed of carbon dioxide, the temperature of a simulated formation, the pressure of the simulated formation, saturated fluid of the core sample and other characteristics are adjustable, thereby having general applicability. The measurement process is convenient and easy to operate.
Description
technical field [0001] The invention relates to a device and a method for measuring the retention rate of the carbon dioxide flooding process, and belongs to the technical field of oil and gas field development. Background technique [0002] Due to the massive use of fossil energy in industrial production and other activities, the emission of greenhouse gases (especially carbon dioxide) is increasing day by day, and the problem of global warming caused by it is becoming more and more serious. Carbon dioxide capture and storage (CO2 2 Capture and Storage) technology, as an effective carbon dioxide emission reduction program, has been valued by experts from various countries. The main methods of carbon dioxide geological storage include oil and gas reservoir storage, deep saline layer storage, coal seam storage and deep sea storage, etc. Compared with other storage methods, the degree of exploration and development of oil layers is higher, and the geological data is more det...
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IPC IPC(8): G01N33/00
Inventor 李松岩李兆敏董全伟李宾飞张超张习斌
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)