水平井设计参数优选及开发指标预测方法研究

以投产水平井的数据为基础,采用灰色关联分析的方法对影响水平井可采储量的各种参数进行了筛选分析,优选出主要的参数;在此基础上,采用模糊聚类的方法,将同类油藏中已投产的水平井进行分类,然后根据新设计水平井的有关参数将该井归到相应类中,根据同类中已投产井的有关开发指标对新设计水平井进行指标预测;并将上述研究过程编制了相应的软件,以一实例进行了分析说明。通过以上研究,为今后不同类型油藏设计水平井及进行指标预测提供了一种新的方法和更加切合实际的参考依据。

The Method Study of Parameters Selecting and Production Index Prediction in Designing Horizontal Wells

Based on the parameters of horizontal wells which have been put into production, using the method of Grey Interconnect Analysis, we sort out the parameters which have great effect on horizontal wells' recovered reserves according to its importance. Based on the selected main parameters, those wells in the same type of reservoirs can be classified into several groups using the method of fuzzy clustering. Then the new designed well is sorted into one of those groups according to its character. The new well can be evaluated by the production index of the wells in the same group. And the software is also made. This study provides a new filtration and evaluation method for horizontal wells' designing.