适合孤东油田疏松砂岩油藏水平井产能公式优选

Productivity Prediction of Sand Control Screen Completion in Gudong Oil Field

孤东油田的油藏属于疏松砂岩稠油油藏,采用水平井开发效果较好,水平井完井方式多为裸眼精密滤砂筛管完井,准确地计算精密滤砂管的产能较为困难。本文推导了精密滤砂筛管表皮因子模型,并结合不同的5种不同的产能解析模型,计算了该油田11口水平井的产能值,并与实际产能进行比较,得出结论,窦宏恩方法更适合孤东油田精密滤砂管完井,平均误差为9.05%,达到现场精度要求。

Gudong Oil Field is a unconsolidated sandstone reservoir, and most of the horizontal wells adopts sand screen completion, however, it is a little difficult to predict production of sand control screen completion precisely. In this article the sand control screen skin factor model was derived and nine differ- ent analytical production model was combined, then 14 horizontal well was calculated to confirm the accu- racy of the whole model, a conclusion was gotten that DouHongEn method fits Gudong Oil Field well and average error is 9.05 percent.