The Researches Of Geologic Feature And Development Regular Rule Of Xinglongtai Oil Reservoir Of Du813 In Shuyi Region

Shuguang oilfield is one of the most heavy oil regions, which lies in the middle plate of west depressed incline in the Liaohe basin. The area is 200 km2, and there are six series of oil strata and coexistence with all kinds of strata and oil products. The heavy oil reservoir was exploited since 2000 when the initial oil well was allocated in the plate of Du84. The proved oil area is 14.73km2 and the proved geologic reserve is 10349×104t and he annual oil production will beyond 120×104t. The application in large scale has maintenanced the level of product of Shuguang oil field which make up for the lack of resource supersede. But with the decline rate of production in main plate is fast by fast and the decline of resource tenor of new exploited regions, the well site have extend to the edge from the middle of reservoir and the types of reservoir are changed to the middle to thick alternate layers. There are great changers of reservoir quality and the relation of oil and water also the development status of oil layers. The effect of new produced well is decline year by year, but the supper heavy oil mainly exist in the reservoirs which has a bad condition and the relation of water and oil is too complex also the conformation is not clear, so the plane of off-take potential is harder and harder. So it is very urgent and important to have a research of oil lays of Shuguang oil field in order to make a foundation of capacity allocation in later.In this paper, the producing test of old wells and new producing wells were analyzed, the periodic regular rule of production and the development condition of reservoir of vertical wells or horizontal wells were researched, those all are on the research foundation of formational sequence and structural feature and reservoir feature and deposit feature and the distribution of oil and water and the character of fluid of the Du813 Xinglongtai oil reservoir. The main problem and contradiction in producing were analyzed. The infection to production caused by geologic parameters of reservoir and the technical parameters of steam injection and the steam flee between oil wells and the engineering design of reservoir were researched and discussed.The field test proved that the technologies of increasing gun perforation efficiency, optimizing injection-production parameters, plugin huff and puff and the casing pipe protection have improved the development infection, and make a base of mew wells location of vertical wells or horizontal wells, and make a good sense to develop oil reservoir in high efficiency.