高含水期两种新型水驱特征曲线的建立与应用

发布时间：2018-10-15 19:30

【摘要】：俞启泰阐述了50多种水驱特征曲线,但每种水驱特征曲线对应的含水率与可采储量采出程度关系曲线只为单一的凸型、S型或者凹型曲线。针对4种水驱特征曲线,根据它们在表达式上的相似性进行了组合,利用累计产水量和累计产油量替换了水驱特征曲线中的累计产液量,由此得到了2种新型水驱特征曲线。通过这2种新型水驱特征曲线的对比,发现第一种水驱特征曲线代表的含水规律曲线与实际的数据更加相近。新型水驱特征曲线既可以预测油田的可采储量,也可以预测凸型、S型和凹型这3种含水上升规律,与原水驱特征曲线相比实用性更加广泛。
[Abstract]:Yu Qitai described more than 50 kinds of water drive characteristic curves, but the relation curve between water cut and recoverable reserves is only a single convex curve, S-type curve or concave curve. According to the similarity of the four water drive characteristic curves, the accumulative liquid production in the water drive characteristic curve is replaced by the cumulative water production and the cumulative oil production, and two new water drive characteristic curves are obtained. By comparing the two new water drive characteristic curves, it is found that the first water flooding characteristic curve represents the water cut law curve which is closer to the actual data. The new water drive characteristic curve can predict not only the recoverable reserves but also the protruding, S and concave types of water cut, which is more practical than the original water drive characteristic curve.
【作者单位】：大庆油田有限责任公司第七采油厂;西南石油大学油气藏地质及开发工程国家重点实验室;中海石油有限公司湛江分公司;
【基金】：国家科技重大专项“亚太及南美地区复杂油气田渗流机理及开发规律研究”(2011ZX05030-005-06)
【分类号】：TE357.6

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