低渗透油藏综合评价技术

大港油田南部官984地区孔二2油组属低渗透油藏,由于该断块构造落实程度低,储层物性差,油井自然产能低,一直未能投入开发.2004年老井复查,对该块重新进行了构造精细解释,结合储层、测井、油藏特征及油藏工程综合研究,认为该断块具有有利的油气富集条件,先后在该地区部署评价井2口,压裂后获高产油流,在此基础上编制了整体开发方案.经整体压裂获得了较高的单井产能,实现了整体探明整装投产.

Comprehensive evaluation technique of low permeability reservoir:taking Block Guan 984 as an example

Kong22 pay zone of Block Guan 984 in Dagang Oilfield is a low permeability oilfield.Because the geological structure is not determined,the reservoir characteristics are poor and the natural productivity is low.The block has not been developed since guan 984 well was drilled.From April 2004,a series of researches have been made on different aspects such as 3-D seismic reinterpretation,reservoir distribution,logging evaluation,reservoir characteristics and reservoir engineering comprehensive research.It is considered that this block is rich in oil-gas accumulation.Two evaluating wells were drilled and proved with high productivity after hydraulic fracturing.The integral development program has been compiled now.Totally 19 wells have been drilled with a higher productivity after integral hydraulic fracturing.Block Guan 984 has achieved better development.