The Study On Exploitation Effect And Development Adjustment In Sazhong Area

With the difficulty of oil extraction gradually increasing,in order to achieve the sustainable development of oil fields, application of multi-disciplinary technology is very important in the oil field development,especially into the development stage of high water。Only the full application of multi-disciplinary technology,oil production can achieve maximum economic benefits。Multi-disciplinary technology includes integrated working platform,detailed geological studies,phased geological modeling,characterization of sedimentary facies control seepage,reservoir simulation techniques and so on。Through multi-disciplinary using in Bingdong development zone in Southern Area,it has achieved the combination of geology, dynamic, and organic,solved the problems about recognition of the geological,quantify the distribution of remaining oil refining,optimization of water flooding adjustment measures and monitoring system。It also ensure that the measures are effective implementation of the single sand,achieve oil's later period of high water to control stabilizing oil solution,improve the management of oil field development.The Sazhong development area have over hundred sedimentation unit.The aggregate thickness is big, and sandstone thickness is more than sixty meters. The reserve is big, and occupies seventy point two of total reserves. The oil layer anisotropism is serious, and on longitudinal alternately distributes in the plane, therefore, independently they are mined with difficulty in the development. After many times water drive infill adjustment, has formed the complexion that is multi- wraps well pattern and multi- wraps formation mutually consummate injection/production relations to mine.In order to alleviate the plane and intrabed contradiction in tertiary phase, and uttermostly enhance oil recovery factor, the Sazhong development area still needed to subdivide the mining object and the formation, uses the well pattern and spacing which adapted with it .Therefore, this topic is for the purpose of utilizing compr-ehensively reservoir engineering methods and the fine numerical simulation method to thoroughly evaluate and research the Sazhong development areas'water drive develop-ment effect and remaining oil's pattern. Respectively and independently deploying a set of well patterns, synchronically drilling and water driving, coordinating and consummating injection/production relations from the plane and longitudinal. Integrally reseaching the second tertiary combined development adjustment well pattern deploy, test oil layers combination optimization schemes,polymer flooding's logical join time and deliverability join relation , optimize a set of optimal combination development type that is adapted with Sazhong development area by utilizing the numerical simulation (streamline simulation ) technology and field experiment. The optimal appraisal results are reasonable and reliable, conform to the field reality.These research results provide the scientific theory foundation for reasonably dugging remaining oil of Sazhong development area and enhancing the crude oil recovery factor.