岩性油气藏 ›› 2019, Vol. 31 ›› Issue (6): 127–134.doi: 10.12108/yxyqc.20190614

• 油气田开发 • 上一篇    下一篇

流势调控在缝洞型碳酸盐岩油藏控水稳油中的应用

任文博   

  1. 中国石化西北油田分公司 采油三厂, 新疆 轮台 841604
  • 收稿日期:2019-04-22 修回日期:2019-06-29 出版日期:2019-11-21 发布日期:2019-09-28
  • 第一作者:任文博(1981-),男,硕士,高级工程师,主要从事碳酸盐岩油藏开发与管理工作。地址:(830001)新疆乌鲁木齐市新市区长春南路466号西北油田分公司。Email:121183521@qq.com。
  • 基金资助:
    国家科技重大专项"塔里木盆地碳酸盐岩油气田提高采收率关键技术示范工程"（编号：2016ZX05053）及中石化重大项目"塔河油田碳酸盐岩缝洞型油藏降低自然递减技术"（编号：ZDP17002）联合资助

Application of flow potential control in water control and oil stabilization of fractured-vuggy carbonate reservoirs

REN Wenbo   

  1. No.3 Oil Production Plant, Sinopec Northwest Oilfield Company, Luntai 841604, Xinjiang, China
  • Received:2019-04-22 Revised:2019-06-29 Online:2019-11-21 Published:2019-09-28

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摘要： 为解决缝洞型油藏因见水和含水上升导致的产量递减，在现有常规砂岩油藏流势表征的基础上，根据缝洞型油藏的地质特征，提出了相应的流势表征新方法，并通过计算和模拟，明确了缝洞型碳酸盐岩油藏流势主要由位能和压能构成。基于流势是控制地下流体流动的决定性因素，提出了通过改变生产压差实现流势调控从而改变流体流动方向的控水技术策略，形成了与水侵方向和水体强弱相关的选井和调整设计等流势调控的关键技术。最后通过实例分析进一步论证了流势调控是缝洞型碳酸盐岩油藏控水稳油的一种有效手段，截至目前在塔河油田已经实施13单元，11单元有效，累计增油近10万t。

关键词: 流势调控, 生产压差, 缝洞型碳酸盐岩油藏, 控水

Abstract: In order to solve the production decline caused by water breakthrough and water cut rise in fractured-vuggy reservoirs,based on the existing conventional flow potential characterization of sandstone reservoir and the geologic characteristics of fractured-vuggy reservoirs,a corresponding flow potential characterization method was proposed. Through calculation and simulation,it is clear that the flow potential of fractured-vuggy carbonate reservoir is mainly composed of potential energy and pressure energy. According to the fact that the flow potential is the decisive factor to control the flow of underground fluid,the technical strategy of water control was put forward to control the flow potential by changing the production pressure difference so as to change the flow direction of underground fluid,and the key technologies of flow potential control,such as well selection and adjustment design,which are related to water invasion direction and aquifer size,were formed. Finally,through case analysis,it is further proved that flow potential regulation is an effective means to control water and stabilize oil in fractured-vuggy carbonate reservoirs. Up to now,13 well groups have been implemented in Tahe Oilfield,11 effective wells have been implemented,and the cumulative oil increase is nearly 100,000 tons.

Key words: flow potential control, production pressure, fractured-vuggy carbonate reservoirs, water control

中图分类号: 

  • TE344
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