首页|Effect mechanism of seepage force on the hydraulic fracture propagation

Effect mechanism of seepage force on the hydraulic fracture propagation

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
The flow of fluid through the porous matrix of a reservoir rock applies a seepage force to the solid rock matrix.Although the seepage force exerted by fluid flow through the porous matrix of a reservoir rock has a notable influence on rock deformation and failure,its effect on hydraulic fracture(HF)propagation remains ambiguous.Therefore,in this study,we improved a traditional fluid-solid coupling method by incorporating the role of seepage force during the fracturing fluid seepage,using the discrete element method.First,we validated the simulation results of the improved method by comparing them with an analytical solution of the seepage force and published experimental results.Next,we conducted numerical simulations in both homogeneous and heterogeneous sandstone formations to investigate the influence of seepage force on HF propaga-tion.Our results indicate that fluid viscosity has a greater impact on the magnitude and extent of seepage force compared to injection rate,and that lower viscosity and injection rate correspond to shorter hydraulic fracture lengths.Furthermore,seepage force influences the direction of HF propagation,causing HFs to deflect towards the side of the reservoir with weaker cementation and higher permeability.

Hydraulic fracturingSeepage forceFracture propagationDiscrete element methodReservoir heterogeneity

Haiyang Wang、Desheng Zhou、Yi Zou、Peng Zheng

展开 >

School of Petroleum Engineering,Xi'an Shiyou University,Xi'an 710065,China

Engineering Research Center of Development and Management for Low to Extra-Low Permeability Oil and Gas Reservoirs in West China,Ministry of Education,Xi'an Shiyou University,Xi'an 710065,Shaanxi,China

Xi'an University of Science and Technology,Xi'an 710054,Shaanxi,China

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaShaanxi Provincial Natural Science Basic Research Program Project

51934005U23B20892024JC-YBQN-0554

2024

10.1007/s40789-024-00695-9

国际煤炭科学技术学报(英文)

国际煤炭科学技术学报(英文)

CSTPCD
ISSN：2095-8293
年,卷(期)：2024.11(3)