克拉玛依油田冲积扇构型及剩余油控制模式

Configuration of alluvial fan and control mode on remaining oil in Karamay Oilfield

王晓光¹ 贺陆明¹ 吕建荣¹ 张强¹ 戴勇² 郑胜² 苏海斌¹

中国石油新疆油田公司勘探开发研究院，新疆 克拉玛依 834000 中国石油新疆油田公司开发处，新疆 克拉玛依 834000

Research Institute of Exploration and Development, Xinjiang Oilfield Company, PetroChina, Karamay 834000, China Development Department, Xinjiang Oilfield Company, PetroChina, Karamay 834000, China

以克拉玛依油田六中区克下组典型冲积扇沉积油藏系统为研究对象，在对密闭取心岩心、测井及动态资料进行综合分析的基础上，结合野外露头观察，应用Miall储层构型理论与层序地层学，对冲积扇砂砾岩体进行层次结构解剖，划分了7个级次的构型界面、4类亚相、7类5级构型单元、9类4级构型单元和10类3级构型单元；详细描述了不同构型单元的规模及物性特征，建立了砾岩储层冲积扇构型模式；分析了构型对剩余油的控制作用。本研究为冲积扇剩余油评价和挖潜提供了新的研究方法，对提高整个克拉玛依油田冲积扇砂砾岩油藏开发效益具有普遍的指导意义。

On the basis of synthetical analysis of sealed coring, logging and dynamic data and combined with field outcrop observation, the hierarchical structure of glutenite body of alluvial fan is dissected through the application of the reservoir configuration theory of Miall and sequence stratigraphy, taking the typical alluvial fan sedimentary reservoir in Lower Karamay Formation of Liuzhong Area of Karamay Oilfield as an example. It was divided into seven bounding surfaces, four subfacies, seven five-grade configuration units, nine four-grade configuration units and ten three-grade configuration units. The scale and characteristics of physical property of different configuration units were described in detail and the configuration mode of alluvial fan of conglomerate reservoir was built. The control role of the configuration on remaining oil was analyzed. The study provides a new research method for the evaluation and potential tapping of remaining oil, which has universal guidance meaning for improving the development benefits of alluvial fan conglomerate reservoir in Karamay Oilfield.

10.6056/dkyqt201204021