利用ANFIS模型预测吸水剖面

Forecasting injection profile by ANFIS model

单 玲 李慧莉 高秀田

中原油田分公司勘探开发科学研究院，河南　濮阳　457001

Exploration & Development Research Institute,Zhongyuan Oilfield Company, SINOPEC, Puyang, 457001, China

随着开发时间的延长，严重非均质油藏层间干扰越来越严重，需要对开发层系进行调整重组。根据油藏动、静态资料，对胡7南油藏沙三中的严重非均质储层的渗透率、级差分布进行合理选取，设计长岩心水驱油实验，通过实验确定不同渗透率岩心动用规律；在实验基础上利用修正的数值模拟模型进行多层联合水驱动用条件下的分层动用规律研究；提出用综合影响因子来反映非均质性对低渗透层的动用特征、驱替效果的定量影响程度；并找出不同渗透层组合的合理界限，用以指导此类严重非均质油藏开发政策的制定。

As the development time going on, the interlayer interference of extremely heterogeneous reservoir becomes more serious. The layer series of development should be adjusted. Based on the dynamic and static reservoir data, reasonable selections are made for the permeability and grading distribution of the extremely heterogeneous reservoir in the middle member of the third section of Shahejie Formation in the south area of Hu7 Block. Water displacing oil of long core experiments is designed, which is used to determine regular producing pattern of cores with different permeabilities. based on the experiment, layered producing pattern was studied under the condition of development with multilayers series by using the modified numerical simulator. It is put forward that the quantitative influence of heterogeneity to production characteristics and displacement effects of layers with low permeability will be reflected by a combined factor. A reasonable technical limit for combinations of different permeable layers is identified in order to guide the formulation of development policies to such extremely heterogeneous reservoirs.