Study Of Reservoir Development Geology Character In Zhaozhou401 District

Based on the studied of structure, sedimentary and accumulation of Putaohua Reservoir in periphery of Daqing Oilfield, this paper concludes accumulation characters and control factors. It classifies the character of oil and water production. On the base of sedimentary facies in Fang169 District which belong to Zhou401, integrating oil and water production character and classicing hydrocarbon accumulation theory it points out that reasons of deliverability and oil/water distribution and explains the complex water production performance. This paper draws these results as below:1 Detailed analyzing the 130 wells performance in Fang169 District, integrating cumulative oil and closed time, it's identified 3 types of oil well in the light of high, medium, low production. Sedimentary facies distribution and high production wells distribution show that big sheet distal bar sand that have a better physical property and accumulation are high production favor regions.2 There are large water well, high water cut well in early stage and interval water production well in Fang169 District. In the plain, elevation stepwise declines from west and east to central. In the vertical, big water well is lowest, the other water well is lower and no water cut well is higher.3 Elevation and reservoir physical property are the key factors that control oil/water distribution. It's fit to the law of "up oil, bottom water" in whole. Reservoir physical property controls the oil/water distribution in partial.4 It propounds that the reservoir concept model of abnormal well, and processes the numerical simulation study. Numerical simulation results and abnormal well performance are uniform tendency. It applies this model can better explain the abnormal performance. And model is fit to the geology background. Underground aquifer has limited space, numerical simulation results and abnormal well performance also verify that's not exist large edge and bottom water.