摘要
低流度油藏指流度低于30×10-3μm2/mPa.s的油藏。根据流度大小以及油藏在开发生产中表现出的特征,可将低流度油藏分为一般低流度油藏、特低流度油藏和超低流度油藏。对大港低流度油藏的研究表明,由于低流度油藏地质情况复杂,地层认识不清,因而开发特征复杂,表现为采油速度低,采出程度和采收率低;注水效果差,油藏井距不适应;油井见水后含水迅速上升,产量则急剧下降。
Low mobility reservoir refers to the reservoirs with mobility less than 30×10^(-3)μm^2/mPa·s.Such reservoirs can be divided into conventional low mobility,extra-low reservoir and ultra-low mobility reservoirs according to mobility and production performance.The study of such reservoirs in Dagang oilfield shows that the reservoirs have complicated geological characteristics,development performance,low oil recovery rate,low recovery factor,poor water flooding response,and inadequate well spacing.After water breakthrough,water cut rises rapidly and oil production declines drastically.
出处
《特种油气藏》
CAS
CSCD
2006年第4期48-50,共3页
Special Oil & Gas Reservoirs
基金
国家重大基础研究项目(973项目)资金资助(项目编号:2001CB209108)
关键词
低流度油藏
分类
开发特征研究
稠油
低渗透油藏
大港油田
low mobility reservoir
classification
development performance
heavy oil
low permeability reservoir
Dagang oilfield
