Analysis of Channeling-Path Phenomena in a Complex Fault-Block Reservoir with Low Recovery Factor and High Water-Cut Ratio  

作　　者：Qunyi Wang Xiaoli Ma Yongbin Bi Haiyan He Xiao Gu Tongjing Liu Lekun Zhao 

机构地区：[1]Jidong Oilfield Company Ltd.Exploration and Development Research Institute,Tangshan,063000,China [2]Unconventional Oil and Gas Institute,China University of Petroleum(Beijing),Beijing,102249,China [3]College of Petroleum Engineering,China University of Petroleum(Beijing),Beijing,102249,China

出　　处：《Fluid Dynamics & Materials Processing》2023年第2期361-377,共17页流体力学与材料加工（英文）

基　　金：supported by Bohai Oilfield Efficient Development Demonstration Project(2016ZX05058-003-011).

摘　　要：Current methods for the analysis of channeling-path phenomena in reservoirs cannot account for the influence of time and space on the actual seepage behavior.In the present study,this problem is addressed considering actual production data and dynamic characteristic parameters quantitatively determined in the near wellbore area by fitting the water-cut curve of the well.Starting from the dynamic relationship between injection and production data,the average permeability is determined and used to obtain a real-time quantitative characterization of the seepage behavior of the channeling-path in the far wellbore area.For the considered case study(Jidong oilfield),it is found that the seepage capacity of the channeling-path in the far wellbore area is far less(10 times smaller)than that of the channeling-path in the near wellbore area.The present study and the proposed model(combining near wellbore area and far wellbore area real-time data)have been implemented to support the definition of relevant adjustment measures to ultimately improve oil recovery.

关 键 词：Complex fault-block reservoirs channeling path quantitative identification characteristic parameters dynamic inversion 

分 类 号：TE3[石油与天然气工程—油气田开发工程]