Experimental simulation equipment used for fissure cave type reservoir chamber

A technology of simulation experiment and reservoir chamber, applied in the field of oil exploitation, can solve the problem of not being able to simulate the two-phase flow of oil and water in the oil reservoir well, and achieve the effect of increasing oilfield production and improving oil recovery.

Inactive Publication Date: 2017-02-01
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the experimental benches designed and built at this stage cannot well simulate the two-phase flow of oil and water in the reservoir.

Method used

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  • Experimental simulation equipment used for fissure cave type reservoir chamber
  • Experimental simulation equipment used for fissure cave type reservoir chamber
  • Experimental simulation equipment used for fissure cave type reservoir chamber

Examples

Experimental program
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Effect test

Embodiment Construction

[0034] figure 1 Schematically shows a device for simulation experiments of a fractured-vuggy reservoir according to an embodiment of the present invention. In this application, according to the distribution characteristics of large-scale fractures and caves in fracture-cavity reservoirs, a large-scale fluid flow experimental equipment is proposed for a series of experiments on fluid flow mechanism. The experimental equipment includes oil system, water system, experimental observation system, oil-water separation system and other parts.

[0035] refer to figure 1 , the oil system mainly includes a fuel tank 13, an oil pump 15, a control valve, an orifice flowmeter 14, a thermometer and related pipelines; the water system mainly includes a water tank 16, a water pump 17, a control valve, an electromagnetic flowmeter 18 and related pipelines; The observation system mainly includes the experimental section 110, mass flow meter 19, camera and computer acquisition system, etc.; th...

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Abstract

The invention provides experimental simulation equipment used for a fissure cave type reservoir chamber. The experimental simulation equipment used for the fissure cave type reservoir chamber comprises a hydraulic circuit. The hydraulic circuit comprises a first branch circuit used for an oil-water mixture, a second branch circuit used for oil, a third branch circuit used for water, an oil-water separating device, an experimental section, a pump assembly and a data processing module. One ends of the first branch circuit, the second branch circuit and the third branch circuit are connected with the oil-water separating device, and the other ends of the first branch circuit, the second branch circuit and the third branch circuit are connected with the experimental section. By adoption of the experimental simulation equipment used for the fissure cave type reservoir chamber, two-phase flow of oil and water in a reservoir can be well simulated.

Description

technical field [0001] The invention relates to the field of petroleum exploitation, in particular to a device used for indoor simulation experiments of fracture-cavity oil reservoirs. Background technique [0002] Fracture-cavity carbonate reservoirs are different from sandstone reservoirs, and their reservoir structures are extremely complex. The main storage spaces of this type of reservoir are secondary fractures and dissolved pores, while the carbonate rock matrix basically has no storage and seepage capacity. The spatial characteristic scales of dissolution pores vary greatly, and their shapes are extremely irregular. The spatial distribution of fractures and vugs is highly random, and the internal structure is also extremely uneven. Previous studies have shown that the flow characteristics of fracture-cavity carbonate reservoirs are quite different from those of sandstone reservoirs. The flow is very complex, and there are both seepage and N-S flows inside the reserv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B49/00
Inventor 康志江张冬丽张允赵艳艳吕铁崔书岳权莲顺
Owner CHINA PETROLEUM & CHEM CORP
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