一种适合大排量高浓度聚合物干粉直配变黏压裂液装置与工艺
By constructing the main process pipeline system and thermodynamic model, the problem of inaccurate viscosity measurement in high-volume, high-concentration polymer fracturing fluid was solved, achieving precise control in the downhole environment, ensuring stable viscosity and uniformity of the fluid at the bottom of the well, and improving the continuity and uniformity of production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SICHUAN DIMAN OIL & GAS NEW MATERIALS TECHNOLOGY CO LTD
- Filing Date
- 2025-12-05
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies struggle to accurately decouple shear thinning behavior in high-volume, high-concentration polymer fracturing fluids, leading to inaccurate viscosity measurements. Furthermore, neglecting the influence of the downhole high-temperature environment results in insufficient or excessive viscosity. The lack of a dynamic compensation mechanism also affects production continuity and uniformity.
The main process piping system is constructed, including a mixing and feeding assembly, a shearing and dispersing assembly, and an online optical detection assembly. The true hydration characteristic viscosity is calculated through dynamic torque flanges and shear sensitivity compensation algorithms. Combined with a thermodynamic model, predictive control is performed to monitor the polymer molecular chain expansion degree and predict the final viscosity, enabling differentiated adjustment.
It eliminates the shear dilution effect at different rotation speeds, ensures the accuracy of viscosity measurement, improves material utilization and fluid homogeneity, guarantees the rheological properties of downhole operations, reduces the frequency of manual intervention, and ensures the continuous and stable operation of the equipment under harsh conditions.
Smart Images
Figure CN121648791B_ABST