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[1]张智,许懿,侯铎.油田CO2驱注采井缓蚀剂防腐性能评价*[J].中国安全生产科学技术,2020,16(12):99-104.[doi:10.11731/j.issn.1673-193x.2020.12.016]
　ZHANG Zhi,XU Yi,HOU Duo.Evaluation on corrosion resistance performance of corrosion inhibitor for CO2 flooding injectionproduction wells in oilfield[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2020,16(12):99-104.[doi:10.11731/j.issn.1673-193x.2020.12.016]
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油田CO2驱注采井缓蚀剂防腐性能评价*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
16
期数:
2020年12期
页码:
99-104
栏目:
职业安全卫生管理与技术
出版日期:
2020-12-31

文章信息/Info

Title:
Evaluation on corrosion resistance performance of corrosion inhibitor for CO2 flooding injectionproduction wells in oilfield
文章编号:
1673-193X(2020)-12-0099-06
作者:
张智; 许懿; 侯铎
(西南石油大学 油气藏地质及开发工程国家重点实验室，四川 成都 610500)
Author(s):
ZHANG Zhi;  XU Yi;  HOU Duo
(State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation，Southwest Petroleum University,Chengdu Sichuan 610500,China)
关键词:
CO2腐蚀; 缓蚀速率; CO2驱
Keywords:
CO2 corrosion;  corrosion inhibition rate;  CO2 flooding
分类号:
X937
DOI:
10.11731/j.issn.1673-193x.2020.12.016
文献标志码:
A
摘要:
为应对CO2驱油过程中油井管材腐蚀严重、管线穿孔、破损现象，为油田优选缓蚀剂刻不容缓，针对油田某CO2驱注采井不同注采周期分析其井筒温度压力场，通过对现场使用的缓蚀剂A，开展缓蚀剂的室内评价，预测全井段管柱腐蚀速率，计算油管柱剩余强度和油管柱安全系数，评价该井不同工况条件下的腐蚀失效周期，综合评价缓蚀剂防腐效果。结果表明：添加缓蚀剂后，油管安全生产周期明显延长，腐蚀速率控制在工程设计允值之内，该方法能有效评价缓蚀剂的应用效果，为现场缓蚀剂选择及管柱强度安全校核提供思路。
Abstract:
In order to deal with the serious corrosion of oil well tubing,pipeline perforation and damage during the CO2 flooding process,it is imperative to optimize the corrosion inhibitor selection for the oilfield.Aiming at different injectionproduction cycles of a CO2 flooding injectionproduction well in the oilfield,its wellbore temperature and pressure fields were analyzed.The indoor evaluation of corrosion inhibitor was carried out on the field applied corrosion inhibitor A,and the corrosion rate of pipe string on the whole well section was predicted.The remaining strength and safety factor of the tubing string were calculated,and the corrosion failure cycles of the well under different working conditions were evaluated,so as to comprehensively evaluate the corrosion inhibition effect of corrosion inhibitor.The results showed that after adding corrosion inhibitor,the work safety cycle of tubing was significantly prolonged,and the corrosion rate was controlled within the engineering design allowable value.This method can effectively evaluate the application effect of corrosion inhibitors,and provide ideas for the selection of onsite corrosion inhibitor and safety check of pipe string strength.

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备注/Memo

备注/Memo:
收稿日期： 2020-09-22
* 基金项目： 国家自然科学基金项目（52074234）；四川省青年科技创新研究团队专项计划项目（2020JDTD0016）；中国石油-西南石油大学创新联合体科技合作项目（2020CX040100）
作者简介： 张智，博士，教授，主要研究方向为井筒完整性与环空带压管控、材料腐蚀与防护。
更新日期/Last Update: 2021-01-08