新疆石油地质 ›› 2006, Vol. 27 ›› Issue (5): 578-580.

• 油藏工程 • 上一篇    下一篇

异常高压气藏气井产量递减自动拟合研究

梁彬, 张烈辉, 李闽   

  1. 西南石油大学油气藏地质及开发工程国家重点实验室, 成都 610500
  • 收稿日期:2006-01-16 修回日期:2006-03-15 出版日期:2006-10-01 发布日期:2020-10-20
  • 作者简介:梁彬(1981-), 男, 重庆人, 在读博士研究生, 油气田开发,(Tel) 028-83030385(E-mail) liangbinswpi@126.com.
  • 基金资助:
    高校优秀青年教师科研奖励计划基金(TRAPOYT)、教育部博士点基金(20040615004)和四川省学术和技术带头人培养资金(2200320)联合资助

A Study on Automatic Matching of Gas-Well Production Decline in Abnormal Pressure Gas Reservoir

LIANG Bin, ZHANG Lie-hui, LI Min   

  1. 1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China
  • Received:2006-01-16 Revised:2006-03-15 Online:2006-10-01 Published:2020-10-20

摘要: 在LM产量递减自动拟合方法的基础上,结合回归分析建立了异常高压气藏气井的产量递减自动拟合数学模型。运用该方法不需要进行图版拟合就可以确定出异常高压气藏的渗透率、孔隙度、有效厚度和地质储量。为了改善模型的预测精度,采用了去掉不稳定生产数据后,再用自动拟合方法来反求地层参数。为了便于模型在实际应用中得到正确的结果,提出了检验计算结果正确与否的检验标准。

关键词: 产量递减, 拟合, 异常高压, 拟稳态

Abstract: The mathematic model of automatic matching of gas-well production decline for abnormally pressured gas reservoir is developed, based on LM's automatic matching of production decline, combined with the regression analysis. This model can be used to determine the permeability, porosity, net pay thickness and OGIP without chart matching. In order to improve the prediction precision, a way of acquiring the formation parameters is adopted by firstly removing the unsteady production data followed by the automatic matching technique. Also, the standard for verifying the calculated results is proposed for application of this model.

Key words: production decline, matching, abnormal pressure, pseudo-steady state

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