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Oil-gas two-phase multi-component flow simulation method and device, electronic equipment and medium

A flow simulation and multi-component technology, applied in the fields of earthwork drilling, design optimization/simulation, electrical digital data processing, etc., can solve the problem of not comprehensively considering the influence of phase state changes on fluid flow simulation, numerical instability of dynamic flow models, etc. question

Pending Publication Date: 2022-05-03
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] (3) For complex unsteady flow, the dynamic flow model has strong numerical instability, and there are still great challenges in application;
[0009] (4) None of the existing quasi-static and dynamic models comprehensively consider the influence of phase state changes on fluid flow simulation

Method used

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  • Oil-gas two-phase multi-component flow simulation method and device, electronic equipment and medium
  • Oil-gas two-phase multi-component flow simulation method and device, electronic equipment and medium
  • Oil-gas two-phase multi-component flow simulation method and device, electronic equipment and medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0184] Figure 5 A flow chart showing the steps of a method for simulating an oil-gas two-phase multi-component flow according to an embodiment of the present invention.

[0185] Such as Figure 5 As shown, the oil-gas two-phase multi-component flow simulation method includes: step 101, determine the flow data at the initial moment; step 102, calculate the fluid flow rate; step 103, establish the phase balance equation; step 104, according to the fluid flow rate and the phase balance equation , calculate the flow data at the next moment; step 105, repeat the above steps until the flow data at all moments are calculated.

[0186] Figure 6 A schematic diagram showing a simulation scenario setup according to one embodiment of the invention.

[0187] Based on the experimental results of PVT phase state of crude oil from HH oilfield, that is, the components of crude oil from HH oilfield in Table 1, a phase equilibrium calculation model of HH crude oil was established. And set ...

Embodiment 2

[0197] image 3 A block diagram of an oil-gas two-phase multi-component flow simulation device according to an embodiment of the present invention is shown.

[0198] Such as image 3 As shown, the oil-gas two-phase multi-component flow simulation device includes:

[0199] Initialize the module to determine the flow data at the initial moment;

[0200] The fluid flow calculation module calculates the fluid flow;

[0201] Phase balance equation building module to build phase balance equations;

[0202] The calculation module calculates the flow data at the next moment according to the fluid flow and phase balance equation;

[0203] The iterative module repeats the above steps until the calculation of flow data at all moments is completed.

[0204] Optionally, flow data includes temperature, pressure and composition corresponding to that moment.

[0205] As an optional solution, the fluid flow includes a single-phase flow fluid flow and a two-phase flow fluid flow.

[0206...

Embodiment 3

[0219] The present disclosure provides an electronic device comprising: a memory storing executable instructions; a processor running the executable instructions in the memory to implement the above oil-gas two-phase multi-component flow simulation method.

[0220] An electronic device according to an embodiment of the present disclosure includes a memory and a processor.

[0221] The memory is used to store non-transitory computer readable instructions. Specifically, the memory may include one or more computer program products, which may include various forms of computer-readable storage media, such as volatile memory and / or non-volatile memory. The volatile memory may include, for example, random access memory (RAM) and / or cache memory (cache). The non-volatile memory may include, for example, a read-only memory (ROM), a hard disk, a flash memory, and the like.

[0222] The processor may be a central processing unit (CPU) or other form of processing unit having data proces...

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Abstract

The invention discloses an oil-gas two-phase multi-component flow simulation method and device, electronic equipment and a medium. The method comprises the following steps: determining flow data at an initial moment; calculating the fluid flow; establishing a phase equilibrium equation; calculating flow data at the next moment according to the fluid flow and a phase equilibrium equation; and repeating the steps until the flow data at all moments are calculated. By considering the influence of the porous medium on the fluid phase state, the phase state and the flow mechanism of the multi-component oil-gas two-phase under the condition of the micro-pore scale are simulated, and support is provided for knowing the oil-gas phase state and the flow mechanism under the condition of the micro-pore scale; the defect that a traditional pore network model cannot consider the phase change of the multi-component multi-phase fluid and other characteristics is overcome.

Description

technical field [0001] The invention relates to the field of oil and gas field development, and more specifically relates to a method, device, electronic equipment and medium for simulating oil and gas two-phase multi-component flow. Background technique [0002] It is known that the interaction between fluid molecules and the surface of porous media in porous media leads to significant differences in the fluid phase state compared with conventional large-space conditions, among which: adsorption, capillary force, critical parameter shift, and pore size It will have a direct impact on the phase state calculation results. [0003] The rock pore structure in real reservoirs is very complex and heterogeneous, and the influence of factors such as pore connectivity, pore throat size, and pore throat coordination number on the fluid phase state is still unclear. [0004] Current flow models fall into two categories: quasi-static flow models and dynamic flow models. The main diff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/28E21B47/00E21B49/00G06F113/08G06F119/08G06F119/14
CPCG06F30/28E21B47/00E21B49/00G06F2113/08G06F2119/08G06F2119/14
Inventor 杨阳伦增珉赵淑霞王锐胡伟王欣周霞
Owner CHINA PETROLEUM & CHEM CORP
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