Reservior Evaluation Of Yao-28Wellblock In North YaoDian Block Of Oinhuabian Oilfield

Yao-28wellblock of North YaoDian Block of Qinhuabian Oilfield is located inYanAn city> ShanXi province. It’s major layer is Chang6.Its Problems now are water ratio going up,fluid and oil production going down.For more efficient exploit and higher recovery ratio,this thesis finished the reservoir evaluation of Yao28wellblock.Finished major research work is as follows:①comprehensive reserviors research about layer structure,layers deviding,sedimentary facies,reservoir physical property, microscopic features and anisotropism;②research of reservoirs classification and evaluation and distribution;③Proven reserves calculation with volumetric method;④after development potential analysis from status quo, a view being that which were due to low permeability, underground energy deficit and inperfect well pattern, this article put forward measures of vertical reperforating.perfect well network in plane and comprehensive water injection.which be proved economic and reasonable after financial calculation.Research results above give a scientific basis for Yao28well block,it’s also provide a useful reference for other similar wellblock or oilfield.