High Resolution Sequence Stratigraphy And Remainingoil Research Of Minghuazhen Zero And The First Oil Group In QHD32-6 Oil Field

With the continuous exploration and development of oil field, how to use scientific and reasonable method to develop oil fields in the late of oil field development and search for the remaining work is the subject of oil field development. To carry out detailed field geology and reservoir Heterogeneities, able to find new oil and gas reserves, find the distribution of remaining oil and improve the oil field development program provides a scientific basis.This article takes high-resolution sequence stratigraphy and sedimentology theories as guidance, this study accurately used well core and well logging data, etc in this area.Through depositional dynamic analysis of different grades base level cycle and identification of interface, method of high-resolution sequence stratigraphic fine division and correlation is presented which is fit to meandering river delta. It is a method that correlation of base level cycles interfaces are come near under the control of gradual marker chronohorizon.By the method, Lower Minghuazhen oil layer of QHD32-6 area is divided into two long-term, seven medium, Forty-six short -term base level cycles for the first time, established high-resolution sequence stratigraphic framework, and research fine sedimentary microfaciea of the short-scale base-level cycle sequence, thus we clarify tthe basic distribution characteristic of the reservoirs in research area. With reservoir heterogeneities of QHD32-6, well logging, core and other information on the detailed analysis carried out flood, study area is proposed for the "mobile water analysis", recognize the distribution of remaining oil in the plane and the vertical, according to the type of the remaining oil exploration proposals are given. This is the effective recovery of oil remaining oil and water injection to improve oil recovery is of great significance.