新疆石油地质

新疆石油地质 ›› 2004, Vol. 25 ›› Issue (3): 297-300.

• 油藏工程 • 上一篇    下一篇

圆形封闭油藏垂直裂缝合采油井产能分析

刘鹏程1, 王晓冬1, 候晓春1, 李凡华2, 邓宏文1   

  1. 1.中国地质大学能源地质系,北京100083;
    2.中国石油石油勘探开发科学研究院,北京100083
  • 收稿日期:2003-08-12 发布日期:2020-09-18
  • 作者简介:刘鹏程(1969-).男山东成武人.进师地士.油气田开发。联系山话.010-82320863。

Productivity Analysis of Commingled Production in Circle-Sealing Reservoir with Infinite Conductive Vertical Fractures

LIU Peng-cheng1, WANG Xiao-dong1, HOU Xiao-chun1, LI Fan-hua2, DENG Hong-wen1   

  1. 1. China University of Geosciences, Beijing 100083, China;
    2. Research Institute of Petroleum Exploration and Development, PetroChina,Beijing 100083, China
  • Received:2003-08-12 Published:2020-09-18

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摘要： 对于低渗地层或伤害地层,水力压裂是一项应用广泛的技术。针对在油田开发中封闭多层油藏无限导流垂直裂缝油井合采的情形,给出了n层圆形封闭非均质油藏、层间无窜流、各层的供给半径不等或相等、各层初始压力不等或相等等情况时，垂直裂缝油井在保持定产生产或保持定压生产时的井壁压力、各层层面流量的计算公式和计算方法。通过一个压裂两层油藏的算例,采用Stehfest数值反演方法分别计算了无限导流垂直裂缝油井定产和定压条件下油层层面流量的变化，并对垂直裂缝油井的产能以及影响因素展开分析和讨论,该方法对矿场圆形封闭多层无限导流垂直裂缝合采油井的配产配注、动态预测以及开发调整具有重要的指导意义。

关键词: 封闭油气藏, 垂直裂縫, 合采, 生产能力, 数学模型.

Abstract: Hydraulic fracturing is a technology well applied to development of low permeability or damaged formation. This paper presentsthe commingled produetion of circle-sealing, n-zone and heterogeneous reservoir with infinite conductive vertical fractures, in which in-cludes conditions such as no interfacial crosflow, equal or unequal drainage radius and initial pressures for different zones, as well asmethods and formulae for calculating the wellbore pressure and individual bedding flow rate at constant production rate and certain pres-sure in vertical fracture wells for an oilfield development.Taking two-zone fractured reservoir as an example,and adopting Stehfest numeri-cal inversion method, the changes of bedding flow rate under the conditions of the constant pressure and production in an oil well with in-finite conductive vertical fractures are estimated, and the well productivity and its affected factors are analyzed and discussed.Thismethod can be as a guide for the alloation of production and injection rates, performance prediction and development adjustment for thistype of reservoirs.

Key words: sealed peservoir: vertical facture, commingled ppoduetion: productivitv: mathematical model

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