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Experimental device and method for simulating the huff and puff of fractured-vuggy carbonate reservoirs

A technology of carbonate reservoirs and experimental methods, which is applied in the field of stimulation experimental devices for simulating fracture-cavity carbonate reservoirs

Active Publication Date: 2017-06-06
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] In order to solve the problem of indoor simulation of the huff and puff effect of fractured-vuggy carbonate reservoirs, the present invention provides an experimental device and method for simulating the huff and puff of fractured-vuggy carbonate reservoirs. Using the experimental device and method, it is possible to simulate Huff and puff status of fractured-cavity carbonate reservoirs under formation conditions

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  • Experimental device and method for simulating the huff and puff of fractured-vuggy carbonate reservoirs
  • Experimental device and method for simulating the huff and puff of fractured-vuggy carbonate reservoirs
  • Experimental device and method for simulating the huff and puff of fractured-vuggy carbonate reservoirs

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[0028] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.

[0029] Such as figure 1 As shown, the present invention proposes a simulated fracture-cavity carbonate reservoir huff and puff experimental device, the device includes a core huff and puff device 7 for simulating a fracture-vug carbonate reservoir, the core huff and puff device 7 is connected to There are gas piston container 4, crude oil piston container 5 and formation water piston container 6.

[0030] During the simulation experiment of fracture-cavity carbonate reservoir huff and puff, according to the experimental procedure, the gas piston container 4, the crude oil piston container 5 and the formation water piston container 6 respectively supply high-pressure nitrogen, crude oil and water to the core huff and puff device 7...

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Abstract

The invention provides a simulate fracture-cavity type carbonate reservoir huff and puff test device and method. The device comprises a core huff and puff device, and the core huff and puff device is connected with a gas piston container, a crude oil piston container and a formation water piston container. The method comprises a preparatory stage, a medium injection stage and a fluid puffing stage. By means of the simulate fracture-cavity type carbonate reservoir huff and puff test device and method, the huff and puff condition of a fracture-cavity type carbonate reservoir under the formation condition can be simulated.

Description

technical field [0001] The invention relates to an experimental device and method for simulating oil reservoirs, in particular to an experimental device and method for simulating fracture-cavity carbonate rock reservoir huff and puff. Background technique [0002] Fractured-cavity carbonate reservoirs are generally dominated by alternate development of pores, fractures and caves, with strong heterogeneity. At present, fractured-cavity carbonate reservoirs are facing problems such as premature water production of oil wells, low reserves production capacity, insufficient natural energy, low water flooding efficiency, and low overall recovery of the reservoir. It has incomparable advantages to improve the recovery factor of fractured-cavity carbonate reservoirs by injecting oil replacement medium huff and puff. The effect of bottom water is an important factor affecting throughput, which belongs to depletion production. Compared with conventional water flooding development oil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B49/00
CPCE21B43/168E21B49/00
Inventor 侯吉瑞朱道义赵凤兰苏伟刘娟王建斐
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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