Study On Water-Flooded Zones In Fuyu Oil Layer Of Honggang Oil Field

The Jilin Oilfield Honggang region after years of water development, has entered a high water cut stage, underground reservoirs due to flooding and the impact of early development of long-term water injection unscientific manner, causing flooding complex statu s. Long-term water reservoir changed the original water distribution, reservoir properties, lithology, oil resistance have undergone a series of changes, different degrees of change logs occurred, to determine which had flooded layer great influence. The study area is now integrated high water content, low oil recovery efficiency, and stable pressure. Therefore, improving the water flooded layer interpretation accuracy, field development Nowadays is a very important and need to be solved.The actual situation Honggang region, to study the geological characteristics of the geology of the region, as well as flooding in the region in the late layer reservoir logging response characteristics. On the basis of the study area is divided interpreting unit on the proposed sand sedimentary rhythm under control flooding fine discrimination method, the deep lateral resistivity curve and porosity curves overlap, qualitative identification and rhythm curve case, each for comparison a standard middle layer rhythm, rhythm other parts of the electrical, physical layer parameters such as the standard to compare discriminated flood level of the small layer. The method of quantitative calculation of the study area reservoir parameters established resistivity model, and using multiple iterations of the qualitative and quantitative methods combined with each other, a combination of actual logging data, combined with the results of a comparative study commissioned to evaluate the practical application effect. After calculations show that this set of interpretation method can effectively improve the water flooded layer interpretation accuracy, accurate interpretation of the flooded layer.