中国石油大学学报（自然科学版）2017，Vol.41Issue(3)：56-64,9.DOI:10.3969/j.issn.1673-5005.2017.03.007
基于三维模型的低渗透非均质储层单砂体全缝长压裂改造与剩余油挖潜
Revelation on remaining oil and full length hydraulic simulation of single sand bodies based on 3D models in low permeability heterogeneous reservoirs
摘要
Abstract
Crack propagation laws in continental heterogeneity reservoir and the actual development of reservoir reconstruction processes are poorly understood.In this study we divided single sand body in a target zone in the Wangyao zone of Ordos Basin by using logging curves.Combining conventional logging and special logging,as well as sedimentary microfacies modeling of reservoir,we built a three-dimensional model of rock mechanics.Then,we carried outfull-length fracturing simulations of interwell reservoir and varying stress field.Through the distribution of cracks and the field performance data,we analyzed the producing degree in heterogeneous reservoirs.Our results indicate that significant variations of single sand body in tight sandstone reservoirs are present,therefore,fracturing simulations of single sand body based on real data of 3D models are needed.Through applications in Ordos Basin in recent years,increased production rate is obvious,and over 90％ success rate is reported among the implemented wells,with an average of more than 2 t/d production increase.The successful application suggests that the method is suitable for improving the residual oil potential in the mid-late development of low permeability heterogeneity reservoir.关键词
鄂尔多斯盆地/非均质储层/单砂体/岩石力学模型/全缝长压裂/剩余油挖潜Key words
Ordos Basin/heterogeneous reservoir/single sand body/mechanics model/full-length fracturing/revelation on remaining oil分类
能源科技引用本文复制引用
刘培刚,张志强,王晓飞,潘懋,师永民..基于三维模型的低渗透非均质储层单砂体全缝长压裂改造与剩余油挖潜[J].中国石油大学学报（自然科学版）,2017,41(3):56-64,9.基金项目
国家重大科技专项(2016ZX05013005-009) （2016ZX05013005-009）
