Nonlinear Model of Gas Flow in Tight Reservoirs Considering Irreducible Water and Their Application to Production Practices
The development of gas fields and laboratory experiment present that the gas threshold pressure gradient (GTPG), which the gas displacement pressure required to exceed, could cause the damage of water-blocking in the exploitation of tight gas reservoirs. Results from laboratory observations indicated that the GTPG is correlated with low permeability, adverse high initial water saturation. Accordingly a macro scale extension of Darcys model is established, which integrates the inertial effect and the GTPG Furthermore, analytical solutions for two-dimensional gas flow in porous media could be readily derived by the following solution procedures in the literature.
Tight gas reservoir Nonlinear flow Irreducible water Threshold pressure Productivity
ZHU Guangya LIU Xiangui HAO Mingqiang
Institute of Porous Flow & Fluid Mechanics, CNPC & CAS, Hebei 065007, China Research Institute of Petroleum Exploration & Development, PetroChina, Beijing 100083, China
国际会议
2009 International Forum on Porous Flow and Applications(第十届全国渗流力学学术会议)
武汉
英文
523-528
2009-04-26（万方平台首次上网日期，不代表论文的发表时间）