Shengtuo Oilfield Remaining Oil Evaluation Of The High Water Cut Stage And Tap The Potential Technical Applications Research

Shengtuo oil field is a reservoir that it is made up of a series interstratified sedimentary rock, include sand formation and clay formation. Sedimentary system has lake facieses, river facieses, delta facieses and so on. The shape of reservoir is very complicated. Physical property is vary from vertical and horizontal section, so that anisotropies is very serious. Perforating condition of oil formation is complicated. Some series of strata perforating situation is flow efficiency. It is a extrude contradiction that is produced by commingled production and commingled water injection. The oil-field's basic geology characteristic and develop characteristics to come to a decision that water drive lead to serious of unbalanced in oilfield development. The situations of unbalanced water drive lead to serious watered out of oil formation in horizontal section. The strength of water drive is varying from in every oil formation of the same oil block and the same oil layer in different block. Remaining oil is scattered. Face the rigorous development status, and put great emphasis on the researching which aims at the distributed rule of remaining oil.Common methods are used for remaining oil research in this article. Here, the author of this article descript technology in detail, which can be used in searching remaining oil, including delicacy reservoir description and well-logging technology. Principle of each method is expounded, emphasizing particularly on applying of these methods. Making use of these methods, the data can be got. Applying these information, it can be understood that the distribution of remaining oil and contradiction between oil and water in reservoir. Application study indicates that delicacy reservoir description can point out where the remaining oil distribute. Well-logging is important method in fixed amount evaluating remaining oil. By synthesizing measures, tapping the latent power is efficient approach in raising production of oilfield. In this article, the examples are careful analyzed. On the basis of these analyses, synthesizing measures are pointed out. Preferable effect can be got in oilfield fine development. These techniques gradually become important means in looking for remaining oil in old oilfield, and providing the dependable technique for developed oilfield in remaining oil evaluating.