基于静、动态参数的多因素调剖选井决策技术研究

The Choosing Decision Technique Study of Injector Well for Profile Control Based on Geology and Production Data

摘要: 调剖选井方法主要有PI决策和RE决策两大技术，整体上看两种技术对于目前油水井动、静态资料的综合利用不够全面，不能反映井组内部动、静态参数非均质的影响。针对目前调剖选井技术特点，利用突进系数计算方法量化各种非均质指标，建立了以井组纵向非均质性、平面非均质性和厚度等静态资料以及产油、产水、含水率等动态非均质参数为评价决策因子，以灰色关联多因素决策为评价方法的多因素调剖选井决策技术。现场应用表明，该方法考虑决策因素全面，评价决策选井结果合理，方法的建立进一步完善了现场调剖选井决策技术，为改善油田开发效果，提高采收率提供有力的技术支持。

Abstract: The methods of the well choice and profile control mainly concluded PI decision and RE decision On the whole, the comprehensive utilization of the static and dynamic data of the two technologies was not comprehensive enough to reflect the heterogeneity of the internal and static parameters within the wellblocks. In consideration of the characters of well choice and profile control, all kinds of heterogeneous indexes were quantified by means of the calculation method of breakthrough coefficient, the vertical heterogeneity, areal heterogeneity, thickness and oil production, water production, watercut were determined as the factors of decision, a grey related multifactor decision was used an evaluation method for a multi-factor well choice and profile control . The field application results show that the decision factors are fully considered in the method, the application result is reasonable, the method can be used for further promoting the technique of well choice and profile control, it provides powerful technical support for improving the development of the oilfield and enhancing oil recovery.