Feasible Study On Three And Four Itemized Belt Thickening In Sabei Development Area Intermediate Belt

Some oil fields exploitation in China have entered the late stage of high water-cut or even the stage of ultra-high water-cut, because of the long-term displacing of underground water into the crude oil, and the remaining oil distribution become increasingly fragmented,the relationship between oil and water become more and more complex, resulting in increasing potentialities difficulties. So in the objective conditions of lacking reserve resources in China, do a better job in the old oilfield for furture exploitation will be an important issue which China's oil industry will face for a long time.In this paper, after investigation at both home and abroad related technical literature and Research results, in view of the actual situation that the large geologic reserve in the intermediate belt of Daqing Oilfield Sabei development area, and the actuarial situation that the expected ultimate recovery efficiency is low,aiming at fulfilling the overall requirements "improve development effectiveness of intermediate belt,make efforts to increase crude oil available reserve", reference to the fully-fledged technical method in evaluaterating water driving effectiveness, carry out effectiveness evaluation of exploiting effect and propose feasibility studies on three and four strip thickening in intermediate belt. Looking for the new technologies which can improve the explore effect of regional development in the intermediate belt, that lay the foundation for realizing the grand goal of "oil for hundred years", that exploiting new method which can increase the minable storability, improve the explore effect of regional development.The fruit's Innovation is that through studying the special oil layer condition and the physical property in the intermediate belt, make development effect evaluation of itemized belt of intermediate belt and define the existing problem in intermediate Belt exploiting . propose the adjustment measures on one or two itemized belt, propose feasibility analysis on three and four itemized belt thickening and five Itemized belt extension, and propose the preliminary pattern of well. The result has great significance on improving the exploiting effectiveness in intermediate belt, discovering the potential capacity of remaining oil and the sustainable development of Sabei development area. At the same time, the oil layer condition and the physical property in Sabei development area show good representation in Daqing placanticline, therefore, the research results can be applied in the Daqing Oilfield, that has important guiding significance on improving exploiting effectiveness in Daqing placanticline intermediate belt,and at the same time has greater social benefits.