油井小层含水率预测方法研究

本文在对影响油井含水的地质及开发因素分析的基础上，用数值模拟方法建立了油水井间不同砂体连通关系下，油井小层含水率预测模型。通过对大庆油田小井距试验区５０１井萨Ⅱ７＋８和葡Ｉ１＋２两个单采油层含水率的预测及中区西部密井网试验区单层测试资料的验证，其结果与实际含水率符合较好。

METHOD FOR PREDICTING WATER CUT IN SMALL LAYERS OF OIL WELLS

Based on analysis of geological and developing factors affecting water cut of oil wells, model for predicting water cut in small layers of oil wells under different sandbody connecting relations between oil and water wells is set up by using numerical simulation method. Through prediction to water cut of two individual producing oil layers of SaII7+8 and PuI1+2 in 501 Well in close well spacing test area of Daqing oil field, and verification by individual layer test data in dense well pattern test area in west part of central area, its result coincide well with actual water cut.