新疆石油地质

新疆石油地质 ›› 2004, Vol. 25 ›› Issue (4): 407-410.

• 油藏工程 • 上一篇    下一篇

三维四相多组分数学和数值模型

张茂林1, 梅海燕1, 郭平1, 熊中辉2, 吴树强2, 李炼文2   

  1. 1.西南石油学院,四川成都610500;
    2.中国石油玉门油田分公司,甘肃玉门735200
  • 收稿日期:2003-10-30 发布日期:2021-01-06
  • 作者简介:张茂林(1965-).男,四川射洪人,博士,油气田开发,联系电话:028-83032915
  • 基金资助:
    “油气藏地质及开发工程国家重点实验室”开放基金资助项目(PLN9902)

3D and 4-Phase Multi-Compositional Mathematic and Numerical Models

ZHANG Mao-lin1, MEI Hai-yan1, GUO Ping1, XIONG Zhong-hui2, WU Shu-qiang2, LI Lian-wen2   

  1. 1. Southwest Petroleurm Institute. Chengdu, Sichuan 6 I0500. China;
    2. Yumen 0ilfield Company, PetroChina, Yumen, Cansu 735200, China
  • Received:2003-10-30 Published:2021-01-06

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摘要： 注气的目的是通过降低注入气与地层原油的界面张力,与原油达到混相(或部分混相)而开采地层剩余油。然而,由于向地层注入工作剂,使整个油气体系的热力学条件发生变化、体系的组分和组成的改变、以及体系的温度和压力的变化,从而有可能导致有机固相物质的沉积。从常规多组分模型的假设条件出发,补充完善考虑有机固相沉积的假设条件;应用达西定律并根据摩尔数守衡定理,建立三维四相(油相、气相、水相和有机固相)多组分数学模型;运用计算机求解时,利用有限差分方法,按顺序求解法建立相应的隐式压力,显示组成及饱和度的数值模型。

关键词: 三维, 多组分相, 数学模型, 数值模型, 注气, 有机固相

Abstract: Cas injection aimns at reducing interfacial lension between oil and injected gas, forming miscible or partial misciblc, and producing in-situ remained crude oil. However, such a gas injection process tends to changing thermody namic conditions in the petroleum system. incInd-ing the systemn' s conuposilion. temperature and pressure, possibly giving rise lo precipitation of organie solid materials. This paper begins with assumptious of conventional multi composition model, supplemenls hypotheses required inn precipitation of organic solid materials, finally. de-velops a multi-conposition mathematic model with 3D and 4 Phase (oil, gas, waler and organic solids) by using Darey 's law and moles conscrva-lion theorem and a numerical model with explicit compnsition and saluration as well as implicit pressure by using finite difference metlhod.

Key words: 3D and 4 Phases, multi-composition, mathematic mortel, numcrical model, gas injection, organic solid

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