论文详情

CO2驱对油藏的伤害及其保护措施

石油钻采工艺

2002年 24卷第4期

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Title

FORMATION DAMAGE AND PROTECT MEASURES ABOUT CO2 FLOODING

作者

杨彪于永李爱山

Authors

Yang Biao Yu Yong Li Aishan

单位

胜利油田股份有限公司采油工艺研究院, 山东东营 257000

Organization

Oil Production institute, Shengli Oilfield Limited Company

摘要

针对CO2驱油过程中独特的沥青、石蜡沉淀作用,探讨了沉淀的机理和影响因素,在此基础上着重介绍了化学方法(加阻垢剂)消除沉淀的工艺措施。简要介绍了气侵、气锥形成机理和合理的注气工艺及预防注入水和CO2气体中杂质带来的油层伤害措施;分析了CO2与水形成碳酸的影响因素及防腐工艺措施。

Abstract

As a special phenomena, bitumen and paraffin sedimentation occur during CO2 flooding, this article analyzes the mechanism and affecting factors of sedimentation, pay emphasis on introducing chemical method(add inhibitor) to eliminate sludge. Tersely illustrates the forming mechanism of gas cutting and gas coning with their reasonable gas flooding technology, measures of preventing impurities in water and CO2 causing the damage of reservoir; it analyzes the factor that affecting CO2 and water generating carbonic acid, and the measures to prevent corrosion.

关键词：

CO2驱; 沥青沉淀; 伤害; 油层保护; 防垢; 防腐;

Keywords:

CO2 flooding; bitumen sedimentation; damage; reservoir protection; antiscale;

基金项目

DOI

10.3969/j.issn.1000-7393.2002.04.015