水力压裂中支撑剂运移与裂缝动态扩展的建模与仿真方法
By simulating rock fracture, fluid flow, and particle transport during hydraulic fracturing using a fully coupled set of control equations, the deviation between fracture morphology and proppant transport coupling mechanism in existing technologies has been resolved, achieving more precise optimization of fracturing operations and increased production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-17
- Publication Date
- 2026-07-17
AI Technical Summary
Existing numerical simulation methods for hydraulic fracturing cannot effectively characterize the real-time, two-way coupling mechanism between fracture morphology and proppant migration, resulting in systematic biases in the prediction of fracture geometry and proppant placement profile, which affects the optimization of fracturing operations and the production increase effect.
A fully coupled set of governing equations is adopted, including a complete coupled description of rock fracture, fluid flow, and proppant transport. The fluid flow and proppant transport within the fracture are simulated by using the phase field method, the Navier-Stokes equations, and the particle transport equations. By combining fluid-solid, particle-fluid, and particle-fracture coupling mechanisms, the synchronous coupling of rock fracture, fluid flow, and particle transport is achieved.
It more accurately predicts fracture geometry and proppant placement, provides a refined design tool for fracturing schemes, reduces field test costs, and improves fracturing production efficiency.
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Figure CN121859794B_ABST
Abstract
Citation Information
Patent Citations
Multi-cluster hydraulic fracture propagation and proppant migration integrated numerical simulation method
CN118839504A