石油与天然气地质 ›› 2013, Vol. 34 ›› Issue (2): 264-266.doi: 10.11743/ogg20130219

• 油气开发 • 上一篇    下一篇

裂缝性高饱和压力油藏产能计算新方法

朱婵1, 沈开元2, 童玉宝3, 江武2, 钱乔雅2, 李文苗1   

  1. 1. 中国石油 辽河油田分公司,辽宁 盘锦 124000;
    2. 中国石油 西部钻探工程有限公司,新疆 克拉玛依 834000;
    3. 中国石油 新疆油田分公司,新疆 克拉玛依 834000
  • 收稿日期:2012-09-15 修回日期:2012-12-10 出版日期:2013-04-28 发布日期:2013-05-02
  • 作者简介:朱婵(1987—),男,工程师,油藏工程。

A new productivity calculation method for fractured reservoirs with high saturation pressure

Zhu Chan1, Shen Kaiyuan2, Tong Yubao3, Jiang Wu2, Qian Qiaoya2, Li Wenmiao1   

  1. 1. Liaohe Oilfield Company, PetroChina, Panjin, Liaoning 124000, China;
    2. Western Drilling Engineering Co.Ltd., PetroChina, Karamay, Xinjiang, 834000, China;
    3. Xinjiang Oilfield Company, PetroChina, Karamay, Xinjiang 834000, China
  • Received:2012-09-15 Revised:2012-12-10 Online:2013-04-28 Published:2013-05-02

摘要:

针对裂缝性碳酸盐岩高饱和压力油藏应力敏感性强、不适用常规产能预测方法的问题,从流动系数随压力的变化关系研究入手,以达西定理为基础,结合油田实际,提出了高应力敏感、高饱和压力油藏产能预测方法。用盐下油田3口井实测的向井流动态关系曲线进行对比的结果表明,经产能预测方法获得的计算值与实际测试值吻合得非常好,平均误差为4.1%。对于当井底流压低于某值,产量将随之降低,并且采用常规产能预测方法难以预测的难题,该新方法为此提供了科学的解决办法,对裂缝性高饱和压力油藏开发具有指导意义。

关键词: 压力下降, 向井流动态关系曲线, 产能预测, 高饱和压力油藏, 裂缝性油藏

Abstract:

As fractured carbonate reservoirs with high saturation pressure are strongly sensitive to stress,the conventional productivity prediction methods are not applicable.Beginning with the study on the variation of flow coefficient with pressure,this paper presents a new productivity prediction method for reservoirs with high stress sensitivity and high saturation pressure based on the theory of darcy flow and in combination with the production practices.Comparison with the mea-sured inflow performance relationship (IPR) curves from three wells shows that the calculated and measured values are in good agreement with an average error of only 4.1%.When bottom hole flowing pressure is lower than a given value output may decrease correspondingly,causing difficulty in productivity prediction with conventional method.The new method can be used to solve this problem,thus is of great significance for the development of the fractured reservoir with high saturation pressure.

Key words: pressure decrease, inflow performance relationship (IPR) curve, productivity prediction, high saturation pressure reservoir, fractured reservoir

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