Supercritical CO2 Fracturing Fluid Throttling Measurement System
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Solution Overview
Problem
Current methods lack a systematic understanding and effective measurement of the throttling effect of supercritical carbon dioxide fracturing fluid in unconventional oil and gas reservoirs due to complex interactions with temperature, pressure, and viscosity, hindering efficient exploitation.
Innovation Solution
A device comprising a supercritical carbon dioxide fracturing fluid throttling coefficient measurement system and viscosity adjustment apparatus, allowing for precise measurement of throttling coefficients across various temperatures and pressures, enabling comprehensive analysis and design optimization for supercritical carbon dioxide injection fracturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If supercritical carbon dioxide fracturing fluid is used to improve flow conductivity and remove reservoir damage, then reservoir productivity is improved, but the complex interaction between temperature, pressure, and viscosity makes throttling effect difficult to measure and control
Solution Approach 1:
The measurement system is divided into independent functional modules: high-temperature high-pressure pump unit, throttling measurement unit, viscosity adjustment unit, and data processing unit. Each module handles a specific aspect of the measurement process, making the complex system manageable and controllable while enabling comprehensive measurement of throttling coefficients under varying conditions.
Solution Approach 2:
The system actively varies temperature, pressure, and viscosity parameters to measure their individual and combined effects on throttling coefficients. By systematically changing these parameters and measuring the corresponding throttling coefficients, the system establishes quantitative relationships that enable prediction and control of throttling effects under different reservoir conditions.
2Measurement precision
If comprehensive measurement of throttling coefficients under different temperatures, pressures, and viscosities is performed to understand throttling rules, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The measurement system is designed with multi-functional components that can handle multiple measurement tasks. The throttling measurement unit, for example, can measure pressure differences and flow rates simultaneously, while the viscosity adjustment unit can modify viscosity and maintain constant temperature. This multi-functionality reduces the need for separate dedicated devices for each measurement parameter.
Solution Approach 2:
The system uses intermediate devices such as the thermal insulation throttling measurement apparatus and viscosity adjustment apparatus as mediators between the supercritical carbon dioxide fracturing fluid and the measurement instruments. These intermediaries enable precise control and measurement of physical parameters while protecting the core measurement system from extreme conditions.
3Productivity
If systematic analysis of throttling effect rules is conducted to optimize fracturing design, then exploitation efficiency is improved, but the lack of existing test data and theoretical explanation increases research difficulty
Solution Approach 1:
The system performs preliminary measurements of throttling coefficients under various controlled conditions before actual fracturing operations. By establishing baseline data and quantitative relationships in advance, the system enables prediction of throttling effects under different reservoir conditions, facilitating optimized fracturing design and parameter selection without requiring extensive field trial and error.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables accurate measurement and analysis of throttling effects, improving the understanding and efficiency of supercritical carbon dioxide fracturing fluid behavior, facilitating better design and operation in unconventional oil and gas reservoirs.
Implementation Method 1
The supercritical carbon dioxide fracturing fluid flows by the injection fracturing apparatus to create throttling effect, causing the temperature to reduce
Implementation Method 2
The supercritical carbon dioxide fracturing fluid is a mixed substance formed by dissolving the thickening agent into the supercritical carbon dioxide
Data Source
AI summary
The present invention relates to a device and method for measuring supercritical carbon dioxide fracturing fluid throttling coefficient under different viscosities. The device for measuring supercritical carbon dioxide fracturing fluid throttling coefficient under different viscosities comprises a supercritical carbon dioxide fracturing fluid throttling coefficient measurement system and a supercritical carbon dioxide fracturing fluid viscosity adjustment apparatus; the supercritical carbon dioxide fracturing fluid throttling coefficient measurement system determines throttling coefficient of a high temperature and high pressure supercritical carbon dioxide fracturing fluid, and the supercritical carbon dioxide fracturing fluid viscosity adjustment apparatus determines viscosity of the high temperature and high pressure supercritical carbon dioxide fracturing fluid.