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Xinjiang - The Carboniferous Volcanic Reservoir Injection And Dynamic Characteristics Of Study

Posted on:2008-04-17Degree:MasterType:Thesis
Country:ChinaCandidate:K XiaoFull Text:PDF
GTID:2190360242958354Subject:Mineralogy, petrology, ore deposits
Abstract/Summary:PDF Full Text Request
Through the reference of massive related literature, we have carefully analyzed the forming process of the complex volcanic reservoirs, carried on a series of related indoor analysis and assays, and carefully studied the development course of Xinjiang Yiqu area Carboniferous reservoir. Taking this as the foundation we discussed the geological features of volcanic reservoirs, and tried to find the movement rules of the fluid in it, so that we could carry on the dynamic research about the injection and production reasonably and comprehensively, further more we could find the reasonable basis for the further development. We made every effort to set up the optimum plan, which adapts volcanic and metamorphic reservoirs well for water-flooding development. These can be beneficial bases for this kind of reservoirs in the next step of research for the adaptability and the feasibility of water-injection development.The problems exposed in the present development of volcanic reservoirs reflect that we have not know the transfusion mechanism in fracture and the matrix well enough, the reasonable and effective water-flooding patterns are still necessary to be studied, the oil well development modes also need to be further discussed. Because of the complicated forming process and diverse forming ways, the structure of volcanic reservoirs is very complicated with huge difference, which has caused its serious anisotropy and results in the enormous difficulty and various injection-production performances during the development.We studied the development histories of many domestic volcanic and metamorphic reservoirs comprehensively, especially focused on the Xinjiang Yiqu area Carboniferous volcanic reservoir. Firstly, we studied its basic geological situation carefully, including its structural features, lothological characters, the reservoir space characters, the transfusion characters, the fluid nature and the overall characteristic. Next, according to its development course, we concluded its rules of the oil-water movement by the further study on its dynamic characteristic of the production. Finally, we obtained the ideas how to develop Xinjiang Yiqu Carboniferous volcanic reservoir reasonably. On the basis of this, we generalized some new ideas for water-flooding development targeting to common volcanic and metamorphic reservoirs.In this research process, we have quoted a large numbers of dynamic development examples, contrasted each other longitudinally and horizontally, then made further analysis of the influence of the fractures in water-injection development. Consequently, macroscopic and microscopic laws of oil-water movement were educed, as can be used for the reference on many aspects for the future development of volcanic reservoirs, such as the supplement of producing energy, the change of water-oil displacement direction, the improvement of efficiency, as well as the discussion of reasonable injection-production way during the later high watery period and the improvement of final development effect.
Keywords/Search Tags:Volcanic reservoir, water-injection development, fracture, pore, permeability, water drive, water breakthrough, flooding
PDF Full Text Request
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