稠化二氧化碳流体摩阻测试系统和方法
By designing a friction test system for thickened carbon dioxide fluid, the flow state of thickened carbon dioxide fluid is monitored in real time using a differential pressure sensor and a visual window. The friction coefficient is calculated using equation (1), which solves the problems of accuracy and efficiency in the evaluation of friction of thickened CO2 fluid in the existing technology and improves the safety and economy of CO2 fracturing construction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA UNIV OF PETROLEUM (EAST CHINA)
- Filing Date
- 2025-12-15
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies are insufficient for accurately and efficiently evaluating the frictional resistance of thickened CO2 fluid in wellbore, and lack the ability to simultaneously characterize the rheological properties and frictional resistance parameters of thickened CO2 fluid, thus failing to meet the accuracy and safety requirements of CO2 fracturing operations.
A friction test system for thickened carbon dioxide fluid was designed, including a carbon dioxide storage tank, a temperature control device, a chemical reagent storage tank, a thickened carbon dioxide fluid preparation container, a flow meter, and a test pipeline. The flow state of the thickened carbon dioxide fluid is monitored in real time through a differential pressure sensor and a viewing window. The friction coefficient is calculated using Equation (1) to simulate the flow in the wellbore.
It enables rapid evaluation of the friction of thickened carbon dioxide fluid, allows adjustment of the friction coefficient based on various parameters, provides precise construction guidance, and improves the safety and economy of fracturing operations.
Smart Images
Figure CN121475971B_ABST