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Carbon dioxide oil-displacing nmr imaging detection device

A technology of nuclear magnetic resonance imaging and carbon dioxide, which is applied in the fields of nuclear magnetic resonance analysis, measuring device, suspension and porous material analysis, etc., can solve problems such as generality and differences that cannot solve mechanism problems, and achieve compact design structure and satisfy The effect of high pressure strength requirements and convenient operation

Inactive Publication Date: 2011-02-02
DALIAN UNIV OF TECH
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Problems solved by technology

Mine field test is the means that can best reflect the actual production effect of the scheme, but the disadvantage is that it cannot solve some mechanism problems and general problems in engineering, and requires a lot of financial and material support
However, there are also significant differences between the two

Method used

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  • Carbon dioxide oil-displacing nmr imaging detection device
  • Carbon dioxide oil-displacing nmr imaging detection device
  • Carbon dioxide oil-displacing nmr imaging detection device

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Embodiment Construction

[0018] figure 1 A system diagram of a carbon dioxide flooding nuclear magnetic resonance imaging detection device is shown. It includes an injection system, a simulated rock core device 12, a nuclear magnetic resonance imaging device 13, a temperature and pressure measurement and control system and an outlet metering system.

[0019] The injection system mainly includes three intermediate containers arranged in the air thermostatic box 7, and a high-pressure metering pump 6 absorbs the distilled water in the distilled water tank 5 through the filter 6a, and supplies high pressure to the left side of the driving piston in the three intermediate containers. The water generates a driving force, so that the third intermediate container 10 , the second intermediate container 9 and the first intermediate container 8 drive formation water, crude oil and supercritical carbon dioxide to the simulated core device 12 in sequence. The supercritical carbon dioxide in the first intermediat...

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Abstract

A carbon dioxide drive nuclear magnetic resonance imaging detection device belongs to the technical field of petroleum engineering and technology. The detection device comprises: a simulation core device which is arranged in a nuclear magnetic resonance imaging device; an injection system which sequentially injects formation water, crude oil and supercritical carbon oxide into the simulation coredevice; a measurement and control system which is employed to control pressure and temperature of the whole system; the nuclear magnetic resonance imaging device which is employed to detect and perform quantitative analysis on an image to be tested to obtain voidage and permeability of a porous medium, and saturation seepage parameters of the supercritical carbon oxide, the formation water and the crude oil; and an output measuring system which is employed to measure volumes of the carbon dioxide gas, the formation water and the crude oil. The detection device has a design pressure of 0-40MPaand design temperature of 0-180 DEG C, and can simulate experimental studies of different displacement schemes of the supercritical CO2 under a complex petroleum reservoir condition; the simulation core device is made of a brass material, which produces no magnetism, satisfies requirements for high pressure and strength, has a compact structure, can be recycled, is conveniently operated, simple and applicable in an experimentation.

Description

technical field [0001] The invention relates to a carbon dioxide flooding nuclear magnetic resonance imaging detection device, which belongs to the technical field of petroleum engineering and technology. Background technique [0002] About CO 2 The research methods of seepage mechanism of flooding enhanced oil recovery (EOR) mainly include: physical simulation, numerical simulation and field test. Mine field test is the means that can best reflect the actual production effect of the scheme, but the shortcoming is that it cannot solve some mechanism problems and general problems in engineering, and requires a lot of financial and material support. Therefore, it is more inclined to conduct simulation studies first. [0003] Simulation research includes numerical simulation and physical simulation. Numerical simulation mainly relies on the establishment of mathematical models based on theories and empirical formulas in seepage mechanics. Due to the complexity of practical pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N24/08G01N15/08
CPCY02A90/30
Inventor 宋永臣赵越超刘卫国刘瑜张毅
Owner DALIAN UNIV OF TECH
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