Increasing CO2 storage in oil recovery

被引：113

作者：

Jessen, K ^{[1
]}

Kovscek, AR ^{[1
]}

Orr, FM ^{[1
]}

机构：

[1] Stanford Univ, Dept Petr Engn, Stanford, CA 94305 USA

来源：

ENERGY CONVERSION AND MANAGEMENT | 2005年 / 46卷 / 02期

关键词：

carbon dioxide sequestration; flow mechanisms; phase behavior; local/global displacement efficiency; reservoir simulation; storage capacity;

D O I：

10.1016/j.enconman.2004.02.019

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Oil fields offer a significant potential for storing CO2 and will most likely be the first large scale geological targets for sequestration as the infrastructure, experience and permitting procedures already exist. The problem of co-optimizing oil production and CO2 storage differs significantly from current gas injection practice due to the cost-benefit imbalance resulting from buying CO2 for enhanced oil recovery projects. Consequently, operators aim to minimize the amount of CO2 required to sweep an oil reservoir. For sequestration purposes, where high availability of low Cost CO2 is assumed, the design parameters of enhanced oil recovery processes must be re-defined to optimize the amount of CO2 left in the reservoir at the time of abandonment. To redefine properly the design parameters, thorough insight into the mechanisms controlling the pore scale displacement efficiency and the overall sweep efficiency is essential. We demonstrate by calculation examples the different mechanisms controlling the displacement behavior of CO2 sequestration schemes, the interaction between flow and phase equilibrium and how proper design of the injection gas composition and well completion are required to co-optimize oil production and CO2 storage. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：293 / 311

页数：19

共 18 条

[1] Sequestration of CO2 in geological media in response to climate change:: road map for site selection using the transform of the geological space into the CO2 phase space [J].