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Pore-level simulation experiment device for alternately displacing oil by microorganisms and air in porous media

A technology for simulating experimental devices and porous media, applied in wellbore/well components, construction, measurement, etc., can solve the problems of poor repeatability, high growth and reproduction level, difficult to clean, etc., to achieve the effect of convenient cleaning

Inactive Publication Date: 2017-05-24
BINZHOU UNIV
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  • Abstract
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Problems solved by technology

However, microbial oil recovery also has its own deficiencies and limitations: at present, most of the microbial flooding bacteria are facultative anaerobic microorganisms, which perform aerobic respiration under aerobic conditions and have a high level of growth and reproduction; generally do not reproduce in anaerobic environments. survival only
However, this model is a two-dimensional model, and what is etched on glass and other materials is the enlarged rock pore throat feature, which cannot accurately reflect the porous medium characteristics of real reservoir rocks; at the same time, due to the pore throat size of the microscopic etching model The reason is that after the oil displacement agent is injected into the microscopic etching model, it is difficult to clean, the repeatability is poor, and quantitative measurement cannot be realized

Method used

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  • Pore-level simulation experiment device for alternately displacing oil by microorganisms and air in porous media
  • Pore-level simulation experiment device for alternately displacing oil by microorganisms and air in porous media
  • Pore-level simulation experiment device for alternately displacing oil by microorganisms and air in porous media

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Embodiment Construction

[0025] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0026] Microbial and air alternating flooding simulation experiment device in this embodiment, such as figure 2shown. The device consists of a micropump 1, a valve 2, a first intermediate container 4, a second intermediate container 5, a third intermediate container 6, a pressure sensor 7, a microscopic visualized transparent quartz sand model 8, a sampler 9, a vacuum pump 11, and a bubble column. 12. A computer 14, a three-dimensional video microscope 16, a hot water circulation heater 17, a constant temperature circulation water bath 19 and an air pump 20; the micropump 1 is connected to the first intermediate container 4, the second intermedi...

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Abstract

The invention relates to a pore-level simulation experiment device for alternately displacing oil by microorganisms and air in porous media. The pore-level simulation experiment device comprises a micro-pump, an air pump, a valve, a first intermediate container, a second intermediate container, a third intermediate container, a pressure sensor, a microscopic visualization transparent model, a sampler, a vacuum pump, a bubble tower, a computer, a three-dimensional video microscope, a hot water circulating heater and constant-temperature circulating water bath. The pore-level simulation experiment device has the advantages that remaining oil distribution images can be observed in real time, can be acquired and can be quantitatively analyzed in procedures for alternately displacing the oil by the microorganisms and the air; injection pressures can be measured in real time in the procedures for alternately displacing the oil by the microorganisms and the air; the water content and the oil production of microorganism and air alternative displacement can be metered and analyzed; pore throat characteristics of real oil reservoir rock can be reflected by the designed microscopic visualization transparent quartz sand model, and the model is filled with transparent quartz sand, is convenient to clean and can be refilled with transparent quartz sand to be used.

Description

technical field [0001] The invention relates to a pore-level simulation experiment device for alternate oil displacement of microorganisms and air in a porous medium, belonging to the technical field of petroleum. Background technique [0002] Microbial oil recovery is very effective in the production of sandstone and carbonatite reservoirs, and it is also applicable to other types of reservoirs. Compared with other tertiary oil recovery methods, microbial oil recovery technology has the characteristics of simple on-site construction, no environmental pollution, easy operation, low cost and high efficiency, and low risk. However, microbial oil recovery also has its own deficiencies and limitations: at present, most of the microbial flooding bacteria are facultative anaerobic microorganisms, which perform aerobic respiration under aerobic conditions and have a high level of growth and reproduction; generally do not reproduce in anaerobic environments. Just to survive. Becau...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/16E21B43/22E21B47/002E21B49/00E21B47/06E21B49/08
CPCE21B43/16E21B43/168E21B47/002E21B47/06E21B49/00E21B49/081
Inventor 程明明雷光伦耿孝恒姚传进李玉浩孙华珍郭海莹张再旺
Owner BINZHOU UNIV
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