A numerical simulation-based fluid control valve accurate opening degree calculation method

By establishing a numerical simulation model of the fluid control valve, the production changes under different pressure differentials and valve distances are simulated, which solves the problem of the difficulty in accurately controlling the balanced exploitation of each layer in the existing technology, and improves the stability and efficiency of oil and gas well production.

CN116401967BActive Publication Date: 2026-07-03SOUTHWEST PETROLEUM UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTHWEST PETROLEUM UNIV
Filing Date
2023-03-16
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing technologies are insufficient to precisely control balanced extraction across all layers and fail to effectively consider the impact of formation factors on oil and gas well production, leading to unstable oil and gas well production.

Method used

Based on numerical simulation methods, a numerical simulation model of a fluid control valve is established. By simulating the production changes under different pressure differentials and valve distances, the throttling performance is evaluated, and the influence of valve opening, valve distance, and formation pressure on the opening is analyzed, providing theoretical support for balanced mining.

Benefits of technology

It enables precise calculation of the opening degree of fluid control valves, improves the reliability and feasibility of balanced mining using multi-layer fluid control valves, and provides theoretical and reference basis for actual production engineering.

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Abstract

This invention discloses a method for accurately calculating the opening degree of a fluid control valve based on numerical simulation, relating to the field of oil and gas exploration and development technology. The method includes the following steps: establishing a simplified numerical simulation model of the fluid control valve and obtaining fluid rheological parameters; simulating the oil and gas production of a single-layer fluid control valve under different pressure differentials and evaluating its throttling performance; using a horizontal throttling orifice to simulate the pressure drop in the horizontal section of a multi-layer fluid control valve; establishing a numerical simulation model of the multi-layer fluid control valve; analyzing the influence of different valve distances, different formation pressures, and the opening degree itself on the opening degree; and programming the relationship between valve distance, pressure differential, and opening degree to obtain the throttling orifice opening size under balanced production conditions. This invention is simple and effective, with high reliability and feasibility, providing a concept and reference for practical production engineering.
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