循环气提法在油田注水脱氧中的应用
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摘要
油田增采注水要求对水脱氧,分析了各种油田注水脱氧技术的优缺点,为探索更高效、灵活的脱氧工艺,考察了气提法脱氧的优化方案。用ASPEN HYSYS软件模拟了循环气提法和顺流循环气提法的流程,选出适宜的气液比、理论板数、气提气含氧量、混合级数等工艺参数。在优化参数范围内,两种工艺均能达到国外注水脱氧要求,将水中含氧量降低至0.02 mg/L以下,为注水脱氧提供新的技术选择。
The water for oil field water injection requires to be deoxidized before the water injection. In this paper, advantages and disadvantages of different kinds of water deoxidation technologies were analyzed. Optimized schemes of gas stripping deoxidization were researched to explore more efficient and flexible deoxidization process. ASPEN HYSYS was used to simulate the recyclable stripping gas process scheme and downstream recyclable stripping gas process scheme, suitable gas liquid ratio, theoretical plate number, stripping gas oxygen content, mixed series and other process parameters were optimized. Within the scope of the optimized parameters, two optimized schemes can reduce the water oxygen content level to less than 0.02 mg/L, which can meet the strict requirement of international standards and can provide new technology selections for deoxidation of the water.
The water for oil field water injection requires to be deoxidized before the water injection. In this paper, advantages and disadvantages of different kinds of water deoxidation technologies were analyzed. Optimized schemes of gas stripping deoxidization were researched to explore more efficient and flexible deoxidization process. ASPEN HYSYS was used to simulate the recyclable stripping gas process scheme and downstream recyclable stripping gas process scheme, suitable gas liquid ratio, theoretical plate number, stripping gas oxygen content, mixed series and other process parameters were optimized. Within the scope of the optimized parameters, two optimized schemes can reduce the water oxygen content level to less than 0.02 mg/L, which can meet the strict requirement of international standards and can provide new technology selections for deoxidation of the water.
引文
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[2]徐晓凯.浅析油田注水开发的工艺技术[J].中国石油和化工标准与质量,2012,12(1):196.
[3]张钧.海上采油工程手册[M].北京:石油工业出版社,2000,981-982.
[4]M.S.H.Bader.Sea Water versus Produced Water in Oil-field Water Injection Operation[J].Science Direct,2007,159-168.
[5]SYT 5329-2012,碎屑岩油藏注水水质推荐指标及分析方法[S].
[6]聂宝栋,赵援朝.渤中34油田注水脱氧系统问题探析[J].中国海上油气工程,1999,11(3):43-45.
[7]张学文,张永兴,李丹岩.油田注水除氧技术与真空旋流水除氧技术[J].石油钻采工艺,2001,23(5):74-77.
[8]延磊,任春雷.海上油田海水注入系统[J].油气储运,2010,29(3):215-217.
[9]SYT 0046-1999,油田注水脱氧设计规范[S].
[10]宋辉.超重力技术在胜利油田生产中的应用[J].油气田地面工程,2009,28(5):70-71.
[11]沈君芳,杨万成,宋云华.油田注海水用FL160型超重力脱氧装置[J].石油机械,2003,31(4):29-31.
[12]孙伯英.油田注入水-海水的脱氧[J].国外油田工程,1990,6(3):36-38.
[13]Kuang-Yeu Wu,Adam T.Lee,Lindsey Vuong,et al.process and apparatus for removal of oxygen from seawater[P].US Patent0118154A1.2012.
[14]Charles Mandrin Winterthur,Rene Keller Zell.Method and Apparatus for Deoxidation of Seawater[P].US Patent 5006133.1991.
[15]齐辉.静态混合器的作用原理及应用实例[J].电大理工学报,2006,1(226):27-28.
[16]David Eric Marten,Anthony Everard.Degassing treatment of liquid[P].US Patent 1531537.1977.
[17]Henriksen.Procedure and Equipment for a Chemical Reaction or Mass Transfer Between Gas and Liquid[P].European Patent 1027139B1.1998.