A pseudo-3D model with 2D flow of hydraulic fracture propagation in thin interbedded sandstone reservoir
During the large-scale hydraulic fracturing of thin interbedded sandstone reservoir (short for TISR), the fracture is propagated greatly along the fracture height direction, leading the length/height ratio of fracture usually smaller than 4. Because the interlayer is thin and weak, this can not afford strong restrictions on the height of fracture propagations. In this condition, the traditional pseudo-3D model only considering the fluid flowing along the length direction of fracture does not agree with the actual situation. In this study, a new pseudo-3D model of predicting the fracture development with 2D flow is built up according to the hydraulic fracturing characteristics of TISR. In the new model, the flow along the fracture height direction is considered. The precise solutions of fracture length and height dimensions are calculated by the new model. The numerical calculating software is obtained based on the new model, which is used to stimulate the fracture development during hydraulic fracturing in TISR. The results show that the new model has a perfect performance in analyzing the fracture development during large-scale hydraulic fracturing in TISR.
pseudo-3D model with 2D flow large-scale hydraulic fracturing thin interbedded sandstone
Yang Xiujuan Wang Tongtao Yan Xiangzhen Wang Xin
College of Storage &Transportation and Architectural Engineering, China University of Petroleum, Don CNPC Research Institute of Petroleum Exploitation and Development (Langfang Branch), Langfang, Hebei
国际会议
The Fifth International Symposium on In-situ Rock Stress(第五届国际岩石应力研讨会)
北京
英文
429-433
2010-08-25（万方平台首次上网日期，不代表论文的发表时间）