新疆石油地质

新疆石油地质 ›› 2005, Vol. 26 ›› Issue (2): 178-180.

• 油藏工程 • 上一篇    下一篇

面积注水井网的选择与调整

王俊魁, 陈国勋   

  1. 中国石油 大庆油田有限责任公司 勘探开发研究院，黑龙江 大庆 163712
  • 收稿日期:2004-06-16 出版日期:2005-04-01 发布日期:2020-08-24
  • 作者简介:王俊魁(1941-),男,黑龙江呼兰人,高级工程师,油藏工程.(Tel)0459-5098676.

Choice and Adjustment of Pattern Well Networks

WANG Jun-kui, CHEN Guo-xun   

  1. Research Institute of Exploration and Development, Daqing Oilfield Company Ltd，PetroChina, Daqing, Heilongjiang 163712, China
  • Received:2004-06-16 Online:2005-04-01 Published:2020-08-24

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摘要： 面积注水井网生产井的产出能力与注水井的注入能力之比,对合理注水方式的选择有着重要的影响。随肴产出-注入能力比的增加,应适当增加井网的注采井数比。当产出能力显著低于注入能力时,反九点注水井网是最佳的选择;当产出注入-能力比接近0,25时,应选择四点注水井网;当产出能力接近注入能力,选择五点注水井网,可以得到较高的采油速度。给出了合理注采井数比的简便计算公式。指出,中、低渗透油藏由于流度比都小于1,采用反九点注水井网进行开发是不适宜的,并给出了反九点注水井网的几种主要调整方式。

关键词: 面积井网, 注水, 四点井网, 五点井网, 九点井网

Abstract: The ratio of producers'productivity to injectors' injectivity for areal well pattern can greatly affect the choice of reasonable injection mode. With the increase of productivity injectivity ratio, the ratio of injection-production wells should be added properly. With prnductivity much lower than injectivity, inverted nine-spot injection pattern is the optimum selection; with productivity-injectivity ratio approaching 0.25, four-spot pattern will be proper; with productivity close to injectivity, five spot injection pattern will reach higher production rate. The simple formula for calculation of reasonable ratio of injection-production wells is presented. It is suggested that with mobility ratio of low permeability reservoir of less than 1, adopting inversed nine-spot injection pattern is improper, and several main adjust-ment modes for inverted nine spot injection pattern are introduced in this paper.

Key words: areal well pattem, water flooding, four-spot well pattern, five-spot well pattern, nine-spot well patter

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