西南石油大学学报(自然科学版)

• 石油与天然气工程 • 上一篇    下一篇

点坝内部构型与井网匹配性研究

刘卫1,2,丁亚军3,宋智聪4,罗水亮5   

  1. 1. 中国石化胜利油田博士后科研工作站,山东东营257002;
    2. 中国石化胜利油田东辛采油厂,山东东营257061;3. 中国石油大港油田勘探开发研究院,天津塘沽300280;
    4. 中海石油(中国)有限公司湛江分公司研究院,广东湛江524057;5. 长江大学地球科学学院,湖北武汉430100
  • 出版日期:2014-04-01 发布日期:2014-04-01
  • 基金资助:

    第52 批中国博士后科学基金面上项目(2012M520347);山东省博士后创新项目专项资金(201303046)

Research on the Match Between Lateral Accretion Shale Bedding
of Point Bar and Flood Pattern

Liu Wei1,2, Ding Yajun3, Song Zhicong4, Luo Shuiliang5   

  1. 1. Postdoctoral Scientific Research Workstation of Shengli Oilfield,SINOPEC,Dongying,Shandong 257002,China
    2. Dongxin Oil Recovery Plant,Shengli Oilfield Company,SINOPEC,Dongying,Shandong 257061,China
    3. Research Institute of Exploration and Development,Dagang Oilfield Company,PetroChina,Tanggu,Tianjin 300280,China
    4. Research Institute of Zhanjiang Branch,CNOOC Energy Technology & Services Co. Ltd.,Zhanjiang,Guangdong 524057,China
    5. School of Geosciences,Yangtze University,Wuhan,Hubei 430100,China
  • Online:2014-04-01 Published:2014-04-01

摘要:

基于港东油田构型地质模型,开展了曲流河点坝侧积层与注采井网的匹配性研究,分别研究了直井、水平井
及侧钻水平井的井网模式对开发效果的影响。研究表明:在采用排状注采井网的情况下,注采井数比低、井排垂直侧
积层的注采井网开发效果好。水平井开发时,水平段与侧积层正交时将会取得最佳的开发效果。采用侧钻水平井挖潜
时,水平井段与注水井间应保持一定距离,本次研究中,注水井和水平井之间相隔3 个侧积层且水平井段与侧积层成
45 度角斜交时剩余油挖潜效果最好。根据研究区的研究成果,分别从注采井网完善、水平井及侧钻水平挖潜3 个方面
将研究成果进行了应用,取得了较好的增油效果。

关键词: 构型, 点坝, 侧积层, 注采井网, 匹配性

Abstract:

Based on the reservoir architecture model of Gangdong Oilfield,the matching between lateral accretion shale bedding
of point bar and flood pattern is analyzed. The effects of different well networks on the development efforts are studied
respectively,including vertical well,horizontal well and sidetracking horizontal well. The results show that,a better development
effect can be obtained with a low ratio of injection-production wells and the line of wells vertical to lateral accretion
shale bedding when row pattern is utilized for exploitation. In horizontal wells development,when the horizontal section is
perpendicular to incident lateral accretion shale bedding,remarkable effects can be achieved. The horizontal section should
be keep away from injection wells when sidetracking horizontal wells were drilled out for potential tapping. In this study,
remarkable potential tapping results were achieved when the horizontal section was three lateral accretion shale bedding away
from injection wells,and horizontal section crossing with lateral accretion shale bedding at a 45-degree angle. The results of
study are applied to completion of injection-production pattern horizontal wells and sidetracking horizontal wells with the good
effect of oil increment.

Key words: internal architecture, point bar, lateral accretion shale bedding, flood pattern, matching