| 本文已被：浏览次 下载次 |
码上扫一扫！ |
|
|
| 基于无因次压降曲线的注水优势流动通道识别方法 |
|
谷建伟1,2,张秀梅1,郑家朋2,3,樊兆亚1
|
|
(1.中国石油大学 石油工程学院, 山东 青岛 266555;2.中国石油大学 石油工程学院, 北京 102249;3.中国石油冀东油田分公司 钻采工艺研究院, 河北 唐山 063004)
|
|
| 摘要: |
| 根据试井基本理论,推导无因次井底压降表达公式,以冀东南堡陆地中浅层油藏资料为基础,建立典型井组数值概念模型,计算分析7个渗透率范围10种渗透率差异倍数下的无因次压降图版。理论分析和数值概念模型计算均表明:采用无因次压降可以消除注水量、吸水地层厚度、地层压力等参数对井底压降特征的影响;在研究区块油藏条件下,当渗透率差异超过6倍后,可形成优势流动通道。 |
| 关键词: 冀东南堡油田 井口压降曲线 无因次井底压降 图版 优势流动通道 渗透率差异倍数 |
| DOI：10.3969/j.issn.1673-5005.2011.05.016 |
| 分类号::TE 357.7 |
| 文献标识码:A |
| 基金项目:国家油气重大专项课题(2011zx05009-003) |
|
| Method of recognizing preferred water flow channels with dimensionless pressure drop curve |
|
GU Jian wei1,2, ZHANG Xiu mei1, ZHENG Jia peng2,3, FAN Zhao ya1
|
|
(1.School of Petroleum Engineering in China University of Petroleum, Qingdao 266555, China;2.College of Petroleum Engineering in China University of Petroleum, Beijing 102249, China;3.Drilling and Production Technology Research Institute of Jidong Oilfield Branch, PetroChina, Tangshan 063004,China)
|
| Abstract: |
| Based on fundamental well test theory, the formula of dimensionless bottom hole pressure drop was derived. With the information of shallow reservoir in Jidong Oilfield, the numerical concept model of well groups was established. The dimensionless pressure drop plate under seven different permeability ranges and ten permeability difference coefficients were calculated and analyzed. The theoretical analysis and numerical concept model calculation results show that the dimensionless pressure drop can eliminate the effects of injection water volume, thick of water absorption lay, formation pressure on the bottom hole pressure drop. Under the studied reservoir conditions, the preferred water flow channels form when the permeability difference coefficient is greater than 6. |
| Key words: Jidong Nanpu Oilfield wellhead pressure drop curve dimensionless bottom hole pressure drop plate preferred water flow channel permeability difference coefficient |
