A method for numerical simulation of chemical flooding in heavy oil reservoir

A numerical simulation, heavy oil reservoir technology, applied in the direction of electrical digital data processing, design optimization/simulation, special data processing applications, etc., to achieve the effect of improving prediction accuracy

Inactive Publication Date: 2019-02-05
CHINA PETROLEUM & CHEM CORP +1
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However, there is no simulation software for the numerical simulation research method of ch

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  • A method for numerical simulation of chemical flooding in heavy oil reservoir
  • A method for numerical simulation of chemical flooding in heavy oil reservoir
  • A method for numerical simulation of chemical flooding in heavy oil reservoir

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[0056] The present invention will be further described below in conjunction with the drawings.

[0057] figure 1 According to the technical flow chart of the numerical simulation method of chemical flooding for heavy oil reservoirs of the present invention. include:

[0058] Step 1. Collect indoor performance test result data and physical simulation flooding experiment result data of various chemical agents in the heavy oil chemical flooding system; in this example, the various parameters required to establish a chemical combination flooding numerical simulation model include chemical agent physicochemical Performance parameters and experimental parameters of chemical core flooding include:

[0059] Chemical agent physical and chemical performance parameters: polymer molecular weight, polymer solution density, and polymer viscosity curve with concentration, temperature, salinity and shear rate; molecular weight of water-soluble viscosity reducer, density of water-soluble viscosity ...

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Abstract

The invention relates to a numerical simulation method for chemical flooding of heavy oil reservoirs, comprising the following steps of: collecting parameters; The calculation and treatment method ofthe parameters of the mathematical model which characterizes the mechanism of heavy oil chemical flooding is established. Defining multi-component and multi-phase model; The size, physical propertiesand fluid properties of the core or sand packing model used in the laboratory physical simulation experiment are used to establish the numerical simulation model of heavy oil chemical combination flooding, and modify the parameters of the mathematical model to characterize the mechanism of heavy oil chemical flooding. The 3D reservoir geological model and the actual field production data are imported into the laboratory scale heavy oil chemical combination flooding numerical simulation model, and the 3D heavy oil chemical combination flooding numerical simulation model is established. The invention lays a foundation for predicting the field application effect of chemical combination flooding in heavy oil reservoirs, and provides a theoretical basis for exploring the application of chemicalcombination flooding in heavy oil reservoirs while perfecting the quantitative characterization model of the mechanism of chemical combination flooding in heavy oil reservoirs.

Description

technical field [0001] The invention belongs to the technical field of prediction methods for chemical flooding in heavy oil reservoirs, and in particular relates to a numerical simulation method for chemical flooding in heavy oil reservoirs. Background technique [0002] At present, four technical series of tertiary oil recovery have been formed in the world, namely chemical flooding, gas flooding, thermal flooding and microbial oil recovery. Among them, chemical flooding includes polymer flooding, surfactant flooding, alkaline water flooding and composite flooding technologies. [0003] Polymer flooding is to reduce the oil-water phase viscosity ratio, expand the swept volume, and increase the oil recovery factor by adding polymers to the water phase. The water-soluble viscosity reducer is composed of lipophilic host molecules and hydrophilic guest molecules. Its main mechanism is to use the non-covalent bond interaction (electrostatic attraction, hydrogen bond, Van der ...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 杨森孙建芳秦学杰徐婷陈光梅伦增珉许关利
Owner CHINA PETROLEUM & CHEM CORP
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