大庆油田二氧化碳驱腐蚀规律室内研究
详细信息 查看官网全文
- 英文论文题名：Laboratory Research on the Corrosion Regularity of CO_2 Flooding in Daqing Oilfield
- 论文作者：傅海荣 ; 韩重莲 ; 韩洋
- 英文论文作者：Fu Hairong ; Han Zhonglian ; Han Yang
- 年：2016
- 作者机构：大庆油田有限责任公司采油工程研究院;大庆油田有限责任公司井下作业分公司;
- 论文关键词：二氧化碳腐蚀 ; 高温高压 ; 挂片失重法 ; 腐蚀影响因素 ; 腐蚀速率
- 英文论文关键词：CO_2 corrosion ; high temperature and high pressure ; hanging weight loss method ; corrosion influence factors ; corrosion rate
- 会议召开时间：2016-09-01
- 会议录名称：《采油工程文集》2016年第3辑
- 英文会议录名称：Oil Production Engineering
- 语种：中文
- 分类号：TE357.45
- 学会代码：DQGY
- 学会名称：大庆油田有限责任公司采油工程研究院
- 页数：6
- 文件大小：1035k
- 原文格式：D
摘要
为提高大庆油田二氧化碳驱采出井防腐措施效率,开展了室内腐蚀规律研究。针对大庆油田二氧化碳驱试验区采出井暴露出的腐蚀问题,在传统的静态挂片失重法基础上,根据大庆油田二氧化碳驱油层条件开展了油气水三相流体高温、高压动态和静态试片腐蚀模拟实验,探索了流速、温度、二氧化碳压力及含水率等主要因素对试片腐蚀速率的影响,并对其原因进行了理论分析。研究结果表明,各影响因素对腐蚀速率的影响程度不一,其中温度、二氧化碳压力及含水率的影响明显,且多因素间相互关联、共同作用,导致腐蚀变化规律复杂。研究结果为二氧化碳驱井筒腐蚀规律研究及现场腐蚀防护措施时机的确定提供了基础理论支撑。
In order to improve the corrosion prevention efficiency of producers by CO_2 flooding in Daqing Oilfield,the laboratory research on corrosion regularity has been carried out. Aimed at the corrosion problems occurred in producers of Daqing Oilfield CO_2 flooding pilot area, the dynamic-static specimen corrosion simulation test in three phase fluids(oil, gas and water) under high temperature and high pressure has been conducted according to the reservoir conditions of CO_2 flooding in Daqing Oilfield, on the basis of the traditional static hanging weight loss method. The effects of flow rate, temperature, CO_2 pressure and water cut on the corrosion rate of the specimen were explored, and its cause was also analyzed theoretically. Research results showed that the influence of all factors on corrosion rate was different, among which that of temperature, CO_2 pressure and water cut was obvious, and many factors were interrelated or acted together, which led to the complicated regularity of corrosion change. The research results have provided the basic theory support for investigating the downhole wellbore corrosion regularity,and determining the opportunity of the field anti-corrosion measures in the course of CO_2 flooding.
In order to improve the corrosion prevention efficiency of producers by CO_2 flooding in Daqing Oilfield,the laboratory research on corrosion regularity has been carried out. Aimed at the corrosion problems occurred in producers of Daqing Oilfield CO_2 flooding pilot area, the dynamic-static specimen corrosion simulation test in three phase fluids(oil, gas and water) under high temperature and high pressure has been conducted according to the reservoir conditions of CO_2 flooding in Daqing Oilfield, on the basis of the traditional static hanging weight loss method. The effects of flow rate, temperature, CO_2 pressure and water cut on the corrosion rate of the specimen were explored, and its cause was also analyzed theoretically. Research results showed that the influence of all factors on corrosion rate was different, among which that of temperature, CO_2 pressure and water cut was obvious, and many factors were interrelated or acted together, which led to the complicated regularity of corrosion change. The research results have provided the basic theory support for investigating the downhole wellbore corrosion regularity,and determining the opportunity of the field anti-corrosion measures in the course of CO_2 flooding.
引文
[1]王培程,龚银春,田仙丽.油气集输管道防二氧化碳腐蚀的方法选优[J].内江科技,2013,34(6):177-178.
[2]李全安,张清,文九巴,等.CO2对油气管材的腐蚀规律及预测防护[J].腐蚀科学与防护技术,2004,16(6):381-384.
[3]朱克华,刘云,苏娜,等.油井二氧化碳腐蚀行为规律及研究进展[J].全面腐蚀控制,2013,27(10):23-26.
[4]唐威,王铭,何世明,等.油气井中的二氧化碳腐蚀[J].钻采工艺,2006,29(5):107-110.
[5]唐应彪.二氧化碳腐蚀规律研究[J].石油化工腐蚀与防护,2014,31(1):1-5.
[2]李全安,张清,文九巴,等.CO2对油气管材的腐蚀规律及预测防护[J].腐蚀科学与防护技术,2004,16(6):381-384.
[3]朱克华,刘云,苏娜,等.油井二氧化碳腐蚀行为规律及研究进展[J].全面腐蚀控制,2013,27(10):23-26.
[4]唐威,王铭,何世明,等.油气井中的二氧化碳腐蚀[J].钻采工艺,2006,29(5):107-110.
[5]唐应彪.二氧化碳腐蚀规律研究[J].石油化工腐蚀与防护,2014,31(1):1-5.