Thick Sand Bodies Of Fan Delta Front In The Reservoir Architecture Research

The 437 pieces of H3 of the oil-field?1,2,series of strata after years of development,is now at later stage of high water cut development stage,remaining oil distribution is complex.For the 437 pieces of H3 of the oil-field ? 1,2,the formation of reservoir characteristics,make full use of geological,logging and production performance data,reservoir fine description and thick reservoir internal structure anatomy,the application methods of theoretical analysis and numerical reservoir simulation,the further study of reservoir development and residual oil distribution law,puts forward oilfield of vector well pattern adjustment next exploration direction of technology.The 437 pieces of double layer H3 ? 1,2,the main development series of strata near source fan delta front underwater distributary channel sand body,the thick typical sedimentary microfacies combination of underwater distributary channel,underwater shore sand and sand sheet combination;Based on the basic principle of hierarchy analysis,the internal structure of the thick oil layer was dissected,and the development of sand body and single channel and the scale of space exhibition were studied.Plane,the remaining oil is mainly distributed in the region of the plane pattern is not perfect,sand body distribution of discontinuity,the area of a poor reservoir property,vertical,enrichment of remaining oil is relatively in H3 ?11,?12,?14,?21 layer.The abundance of remaining oil reserves in the block and the abundance of movable residual oil are still relatively high in the central and northeastern regions.