浅水湖盆三角洲分流河道单砂体精细识别与应用

发布时间：2019-03-02 14:33

【摘要】：为了提高三角洲分流河道砂体描述精度,改善二类油层开发效果,开展了浅水湖盆三角洲分流河道单砂体描述方法研究。通过区域沉积调查和岩心观察分析确定了萨、葡油层沉积环境。按照"垂向分期、侧向划界、模式预测"的思路开展储层描述方法研究,形成了地层细分对比、测井相模式建立、平面微相模式预测三角州相储层精细描述技术流程,实现了浅水湖盆河控三角州分流河道砂体精细解剖,把分流河道砂体划分为复合板状、拼合带状、交织网状、分叉枝状、单一连续型5种分流砂体类型,从一类到五类河道规模依次变窄,砂体发育依次变差。深化了储层非均质特征认识,研究方法实现了在油田其他区块推广应用,研究成果在水平井部署和完善注采系统方面进行了应用,见到了较好的挖潜效果。
[Abstract]:In order to improve the description accuracy of delta distributary channel sand body and improve the development effect of second class reservoir, the description method of single sand body in delta distributary channel of shallow lake basin was studied. Through regional sedimentary investigation and core observation analysis, the sedimentary environment of sa and Portuguese oil layers is determined. According to the idea of "vertical staging, lateral delimitation and model prediction", the reservoir description method was studied, which resulted in the formation subdivision and correlation, the establishment of logging facies model, and the fine description technical process of triangular state facies reservoir predicted by plane micro-facies model. The sand body of distributary channel in shallow lake basin and river control triangle state has been carefully dissected, and the sand body of distributary channel has been divided into five types of distributary sand body: composite plate, banded, interlaced reticulate, branched branch, single continuous type of distributary sand body. From one type to five types, the scale of channel becomes narrower in turn, and the development of sand body becomes worse in turn. The research method has been widely applied in other blocks of oil field. The research results have been applied in horizontal well deployment and improvement of injection and production system, and good potential tapping effect has been seen.
【作者单位】：中国石油勘探开发研究院;大庆油田有限责任公司勘探开发研究院;
【基金】：“十二五”国家科技重大专项“井震结合油藏精细结构表征技术”(2011ZX05010-001)
【分类号】：P618.13;TE31

【相似文献】