Luliang In The Water Reservoir Permeability Thin Edge Research And Application Of Reasonable Adjustment Mode

At present, quite a number of edge-water reservoir have entered high water cut stage, some have entered ultra-high water cut stage in our country. There are many practical problems need to be solved, just like pattern adjustment, enhance water drive recovery and the tertiary oil recovery. The types and characteristics of sandstone reservoir in our country are complicated very much. In the most of middle and high permeability reservoir, the water-flood recovery effect is satisfied and has a high recovery degree, generally more than25%. There are not authority and consistent point of view have been published in the journal about the reservoir whether need to be adjusted and how to adjust, so there are a mass of research work to be done.This paper choose "research and application about the thin layer with high permeability and edge-water adjust the way reasonably" for the subject, choose the K1/h27-4of Cretaceous system in Hutubi River Layer’s Lu-Liang Oil-field Karamay of Xinjiang for the object of research, take full advantage of materials of ample drilled wells and wells from2008to2012to study the thickness and location information of those wells. Apply with geological model and reservoir numerical simulation technology to carry out multidisciplinary comprehensive research such as geological, logging, reservoir engineering and numerical simulation. To study remaining distribution and water-flooding rules on the basis of satisfactory history matching of dynamic production and the thickness and position of wells between injection wells and production wells of well water-flooding effect of high permeability edge-water reservoir. Comparative analysis by means of different well pattern adjustment, recovery degree, water flooding effect, oil recovery rate and single well oil production factors, determine the east-west determinant for optimal adjustment scheme, through calculation, the economic limit production and economic limit oil production is feasible. Preliminary achieved technical ideals of this kind of reservoir with well pattern adjustment.Though this thesis could not solve all the problems in the future, it provides a good theory for the subsequent research of K1h27-4reservoir whether need to adjust, and how to adjust technical, also it can lay a foundation and have a good reference for the further study adjustment problems of domestic and foreign similar reservoir development.