Genesis Single Sand Body Anatomy Technology Research About Saertuⅱlayer In The North North Block Of Lamadian Oil Field

In order to better analyses the distribution of remaining oil situation, for the remaining oil in the develop on reasonable and effective. Make Lamadian oilfield in sedimentary characteristics on the basis of single sand body, combining causes building structure characteristics, using high-resolution formation strata, the causes of chain control single sand body, anatomical technology lamadian oilfield the North-north SaertuⅡGroup for single sand body anatomy technology research; Established in the "causal analysis, spinning back contrast, level localization, graded division, tracking anatomy" for the principle, "spinning back complete, sand body type clear, plane traceable, accord with architectural structure characteristics, the Wells layered obvious 60% for requirements of the river," single sand body-delta causes anatomical technology; De-siltation established late identification technique and its control of single sand body under formation facies belts chart drawing methods; It is for establishing the drawing method of genesis single sand body under the control of recognition technology at the last riverbed phase. And using surplus oil analyzing method in the special high water phase, it is based on the influence factor and distribution form about surplus oil distribution, making summary about eight kinds of genesis distribution in the research region.The technology is applied in the north-north Lamadian oil field SaertuⅡGroup at the first time, analyzing the layer adjustment dissect and mapping achievement of facies, we can get the conclusion, new dissecting achievement is very good, cycle completing is very good in the layer, the connectivity is clever, river sand body is more vastly. It can judge the distribution of surplus oil accurately, and adjust the development method basing on surplus oil characteristic, gain the development effect and research purpose.