Title: Practice and Cognition of Secondary Polymer Flooding in General Heavy-oil Reservoirs in Eh_2 of Xia'ermen Oilfield
Abstract: Xia'ermen Oilfield Eh2Ⅱ oil formation was a general heavy oil reservoir with thin oil layer,strong heterogeneity and high oil viscosity.After water injection,polymer flooding and water injection have been used for polymer flooding development for more than 20 years.There was low recovery percent,low production velocity,low producing degree,high water-cut,the effect of development has been worse year by year.It achieved good oilfield application effect by using key techniques,such as well pattern adjustment,injection and production parameter optimization,overall profile control and dynamic adjustment etc.for second polymer flooding.Field application indicates that it can improve development effect of the reservoir,it is an effective way to improve recovery percent of reserves.It is the first unit for second polymer flooding for conventional heavy oil reservoir in Xia'ermen Oilfield.It provides reference for the similar reservoir development.
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
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