新疆石油地质

新疆石油地质 ›› 2008, Vol. 29 ›› Issue (5): 613-615.

• 油藏工程 • 上一篇    下一篇

CO2 气藏气井产量递减预测方法的应用

李春芹1, 薛国庆2, 李闽2, 肖文联2   

  1. 1.中国石化胜利油田有限责任公司纯梁采油厂，山东东营256504;
    2.西南石油大学，成都610500
  • 收稿日期:2008-01-17 发布日期:2020-10-19
  • 作者简介:李春芹(1965-),女,山东东营人,高级工程师,油气田开发,(Tel)0546-8752200 (E-mail)CLLCQ@126.com.

Application of Gas Well Production Decline Prediction Methods to CO2 Gas Reservoir

LI Chun-qin1, XUE Guo-qing2, LI Min2, XIAO Wen-lian2   

  1. 1. Chunliang Oil Production Plant, Shengli Oilfield Company Ltd., Sinopec, Dongying, Shandong 256504, China;
    2. Southwest Petroleum University, Chengdu, Sichuan 610500, China
  • Received:2008-01-17 Published:2020-10-19

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摘要： 在Fraim 提出的CO2气藏气井产量递减模型的基础上，结合非线性回归分析方法和CO2气藏的高压物性随温度、压力变化关系，根据CO2气藏气井的生产史确定出CO2气藏单井控制储量和地层参数的计算公式，并应用这些公式计算了花沟气田高53 块井的单井控制储量，从而弄清了花沟气田的储量动用程度，为气田下一步开发决策提供了重要依据。同时还提出了用标准化时间和标准化压力的半对数图是否呈直线作为检验计算结果正确与否的标准，为获取准确的储量和地层参数提供了依据。

关键词: CO2气藏, 产量, 递减, 地层参数, 储量

Abstract: This paper presents some formulas which are based on Fraim's chart matching model for gas reservoir, combined with the nonlinear regression analysis and the relationship of PVT in CO2 gas reservoir. They can be used to determine the OGIP and reservoir parameters according to CO2 gas well production history. Through calculation of OGIP of Gao-53 Well in Huagou gas field, the reserves producing degree in this field has been found out, which can be as an important basis for further exploitation decision. Also, this paper presents the criterion to validate the calculation results with the semi-log figure of normalized time vs. normalized pressure being straight line or not, and provide references for acquiring proper OGIP or reserves and reservoir parameters.

Key words: CO2 gas reservoir, production, decline, reservoir parameter, OGIP, reserve

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