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Visual experiment device and method for simulating fracture-vug type carbonatite oil reservoir gas injection

A carbonate rock reservoir and experimental device technology, which is applied in the field of simulating gas injection in fractured-cavity carbonate reservoirs and visual experimental device, and can solve problems such as poor visual experimental effect and the like

Active Publication Date: 2016-01-06
CHINA UNIV OF PETROLEUM (BEIJING)
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Problems solved by technology

[0004] The present invention provides a visual experiment device and method for simulating gas injection in fractured-cavity carbonate reservoirs to solve the problem that the visualization experiment effect of simulating gas injection in fractured-cavity carbonate reservoirs to enhance recovery is not good

Method used

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  • Visual experiment device and method for simulating fracture-vug type carbonatite oil reservoir gas injection
  • Visual experiment device and method for simulating fracture-vug type carbonatite oil reservoir gas injection
  • Visual experiment device and method for simulating fracture-vug type carbonatite oil reservoir gas injection

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Embodiment Construction

[0052] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the present invention will now be described with reference to the accompanying drawings.

[0053] Such as Figure 4As shown, the visualized experimental device for simulating gas injection in fracture-cavity carbonate reservoirs of the present invention includes the following experimental devices: computer 1 or microcomputer, camera 2, visualized core clamping device 6, light source 7, simulated formation water Piston container 11, formation simulation oil piston container 12, gas piston container 13, advection pump 15, six-way valve 14, pressure gauge, balance pressure device 5, (corrosion-resistant) back pressure valve 3, oil, gas and water metering device 4, gas cylinder 10. Gas flow meter 9, three-way valve 8, valve 16, valve 17, valve 18, valve 19, valve 20, valve 21, valve 22, valve 23, valve 24, valve 25, outlet 26, outlet 27, outlet 28, outlet 29, ...

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Abstract

The invention provides a visual experiment device and method for simulating fracture-vug type carbonatite oil reservoir gas injection. The visual experiment device for simulating fracture-vug type carbonatite oil reservoir gas injection comprises a computer, a camera, a visual core clamping device, a planar light source, a simulation formation water piston container, a stratigraphic simulation oil piston container, a gas piston container, a constant-flux pump, a six-way valve, a pressure meter, a pressure stabilizing tank, a back-pressure valve, an oil, gas and water metering device and a pressure-resistant gas flow meter. The visual experiment device is adopted in the experiment method. By means of the device and method, fracture-vug type carbonatite oil reservoir gas injection can be simulated, production performance of the recovery efficiency is improved, and flow states and distribution conditions of a crude oil phase, a gas phase and a water phase in the gas injection huff and puff process can be observed.

Description

technical field [0001] The invention relates to the field of enhanced oil recovery, in particular to a visualized experimental device and method for simulating gas injection in fractured-cave carbonate reservoirs. Background technique [0002] Fractured-vuggy carbonate reservoirs are dominated by alternate development of pores, fractures and caves, with strong heterogeneity. At present, oil wells are facing problems such as premature water production, low production capacity of reserves, insufficient natural energy, low water flooding efficiency, and low overall recovery of the reservoir. Comprehensive analysis of mine production dynamics shows that the remaining oil in fractured-cavity carbonate reservoirs mainly includes attic oil and interwell oil, etc. Injecting gas can displace the interwell oil, and injecting gas huff and puff can produce attic oil, so injection Compared with chemical flooding and microbial flooding, gas displacement or huff and puff to enhance the re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/16E21B47/002
Inventor 侯吉瑞朱道义王建斐赵凤兰宋兆杰
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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