Xinjiang Oilfield Deep Reservoir Evaluation Of Reserves

Currently, the vast majorities of oil fields in China, especially the eastern oil fields, shallow and middle reservoirs have been proven, or are being developed, and many of the oilfields are close to the high water cut stage. In this case, hope that discover large-scale, substituted reservoir under conventional exploration depth is not too realistic. However, China has entered the stage of rapid economic growth, and it is certainly that the growth of economy will increasingly rely on the energy, especially the petroleum which is called the industrial blood. For this reason, it is extremely urgent to take the petroliferous basins and deeply regions as the aim of the reservoir exploration and development goals. Therefore, it is urgent and extremely important to research the economic reserves evaluation during the process of deep reservoir exploration and development.Base on above purposes, applying the related theory of reservoir engineering principles, combing the geological reliability and economic feasibility evaluation organically and linking theory with practice, this paper established technical and economic evaluation methods for deep reservoir reserves in Xinjiang oilfield.Applying gray theory to Xinjiang oil field geological reliability evaluation of deep reservoir reserves solved the geological reliability quantitative evaluation and categorize each trap reliability problems.Based on the profit and loss balance method, this paper established deep reservoir economic evaluation model, putting the parameters of the three blocks into this model to test for some data, and then using SPSS17.0statistical software analyzed the data to draw the conclusion. Through analyzing and discussing the results, the author obtained the mathematical relationship among internal rate of return with trap area, economic reserves, well depth, which provides an easy way for deep reservoir reserves, economic evaluation.Finally, combining the deep reservoir geological reserves reliability analysis and economic feasibility analysis and basing on the results of geological reliability evaluation and economic evaluation, the author established comprehensive evaluation standard and this method properly solved the problem of Evaluation of the deep reservoir reserves.