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- Title
非均质致密油藏压裂水平井产能预测模型.
- Authors
马亮亮
- Abstract
Tight oil reservoirs will be the critical resource base for increasing reserves and production for a long period in the future. Long fractured horizontal well is the key to develop tight oil reservoirs, but a horizontal well always penetrates several zones with different permeability, causing multi-stage fracturing becoming multi-fractures system, and bringing challenge for accurate simulation and prediction of reservoir production. Based on fundamental solutions of Laplace space close-boundary Green function, hydraulic fractures and interfaces between different permeability zones are discretized into meshes to establish boundary integral equations of fractured horizontal well in heterogeneous reservoirs. Numerical inverse Steh-fest method is used to obtain production model for constant bottom hole pressure. The research shows that his model can be used to study influence of fracture penetration ratio, fracture conductivity and permeability contrast on productivity, and can be used to characterize reservoir pressure field and streamline distribution in different flow stages. Single well model of horizontal wells in a tight reservoir of Daqing Oilfield is established with high history matching accuracy, and can effectively guide optimization design and productivity prediction of long horizontal wells in heterogeneous tight reservoirs.
- Publication
Petroleum Geology & Oilfield Development in Daqing, 2022, Vol 41, Issue 4, p168
- ISSN
1000-3754
- Publication type
Article
- DOI
10.19597/J.ISSN.1000-3754.202103021