石油与天然气地质 ›› 2009, Vol. 30 ›› Issue (6): 689-691.doi: 10.11743/ogg20090603

• 成藏理论 • 上一篇    下一篇

异常高压气藏有限封闭水体能量评价

胡俊坤1,2, 李晓平2, 李琰1, 叶亮1, 任科1   

  1. 1. 西南石油大学, 研究生部, 四川, 成都, 610500;
    2. 西南石油大学, 油气藏地质及开发工程国家重点实验室, 四川, 成都, 610500
  • 收稿日期:2009-05-08 出版日期:2009-12-25 发布日期:2012-01-16

Evaluation of energy of restricted and closed aquifer in over-pressured gas reservoirs

Hu Junkun1,2, Li Xiaoping2, Li Yan1, Ye Liang1, Ren Ke1   

  1. 1. Graduate School of Southwest Petroleum University, Chengdu, Sichuan 610500, China;
    2. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China
  • Received:2009-05-08 Online:2009-12-25 Published:2012-01-16

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摘要：

提出了一种评价异常高压气藏有限封闭水体能量的新方法。此方法是在广义物质平衡方程的基础之上,结合异常高压气藏的生产动态,计算出异常高压气藏有限封闭水体的水体倍数,从而对气藏的水体能量进行评价。通过对新场气田新3井的实例计算,得出有限封闭水体的水体倍数为0.0805。文章论证了此方法的可靠性和有效性。

关键词: 封闭水体, 水体能量, 物质平衡方程, 异常高压气藏

Abstract:

A new method for evaluating the energy of restricted and closed aquifer in over-pressured gas reservoirs is proposed in this paper.Based on the generalized material balance principle and in combination with performance of over-pressured gas reservoirs,this new method can be used to calculate multiple of aquifer—the ratio of aquifer volume to pore volume of gas-bearing zones—for a restricted and closed aquifer in over-pressured gas reservoirs.Then the aquifer energy can be evaluated by using the multiple of aquifer.By applying the method to the well X-3 in Xin Chang gas field,we evaluated the aquifer energy for the reservoirs based on a calculated aquifer multiple of 0.080 5 for the restricted and closed aquifer.The case study shows that this new method is reliable and effective.

Key words: restricted and closed aquifer, aquifer energy, material balance equation, over-pressured gas reservoir

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