Disproportionate permeability reduction is not a panacea

作     者：Stavland, A Ekrann, S Hettervik, KO Jakobsen, SR Schmidt, T Schilling, B 

作者机构：RF Rogaland Res Stavanger Norway Statoil Stavanger Norway Statoil Res Ctr Trondheim Norway 

出 版 物：《SPE RESERVOIR EVALUATION & ENGINEERING》 (石油工程师协会油藏评估与工程)

年 卷 期：1998年第1卷第4期

页      面：359-366页

核心收录：

学科分类：0820[工学-石油与天然气工程] 08[工学] 0708[理学-地球物理学] 

主　　题：enhanced recovery Fluid Dynamics flow in porous media Upstream Oil & Gas polymer relative permeability buildup perforation differential pressure dpr Flow in porous media Formation Evaluation & Management Improved and Enhanced Recovery Reservoir Fluid Dynamics Reservoir Simulation 

摘      要：In this paper, we discuss experimental and theoretical studies on the effects of disproportionate permeability reduction (DPR) (i.e., the ability to reduce relative permeability to water more than to oil). The theoretical part discusses DPR effects by simple analytical arguments, supported by simulations. DPR causes buildup of water saturation in the treated zone to accommodate the water/oil ratio, F-w0, delivered by the reservoir. Core flooding experiments were also carried out, with a DPR gel placed in one half of the core. There is excellent agreement between theory and core flooding results. It was observed that the water saturation in the treated zone increased. Saturation profiles were measured with a CT scanner and is well matched by simulation.