新疆石油地质 ›› 2011, Vol. 32 ›› Issue (1): 45-48.

• 油藏工程 • 上一篇    下一篇

缝洞型底水油藏水锥形态确定方法

吕爱民, 姚军, 王伟   

  1. 中国石油大学石油工程学院,山东东营257061
  • 收稿日期:2010-07-13 发布日期:2020-08-07
  • 作者简介:吕爱民(1970-),男,河北乐亭人,副教授,博士,油气田开发,(Tel)0546-8391192(E-mail)hdpulam@163.com.
  • 基金资助:
    国家973项目(2006CB202404)

A Method for Determination of Water Coning Shape of Fractured-Vuggy Layered Reservoirs with Bottom Water

LV Ai-min, YAO Jun, WANG Wei   

  1. College of Petroleum Engineering, China University of Petroleum, Dongying, Shandong 257061, China
  • Received:2010-07-13 Published:2020-08-07

摘要: 针对位于缝洞型底水油藏大型溶洞处的单开临界产量计算和水锥预测缺少有效方法的实际,考虑洞内、洞外两种流动力学特征和流动规律的不同,分别在二项式流动模式和线性流动模式基础上推导出了临界产量下用于描述洞内外水锥形态的计算公式,建立了由开发初期稳定试井资料获取关键参数的方法,并可用试算法计算临界产量。应用实例表明,洞内的水锥在近井区形成尖峰,并向外快速降低为平台;洞外水锥与洞内水锥形态明显不同,其形态由内而外逐渐变缓。

关键词: 碳酸盐岩油气藏, 底水油气藏, 水锥, 形态

Abstract: In view of the shortage of effective approach for calculating the critical production and predicting the water coning in fracturedvuggy layered reservoirs with bottom water when drilling inside vugs, a method for domain decomposition is adopted, considering the different flow mechanical characteristics and flow variation between inside and outside of vugs, a calculating formula is put forward to describe the water coning shape under critical production based on binomial and linear flow models. The method for getting the key parameters from steady well test data at early stage of development is presented, of which the critical production can be calculated with trial method. The case study indicates that the water coning inside vugs forms peak shape nearby well bore and quickly declines outward as flat shape. The water coning shape outside vugs is obviously different from the inside, whose shape is in gradual flat from the inside to the outside.

Key words: carbonate reservoir, bottom water reservoir, water coning, shape

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