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胜坨油田原油温室气体排放特征及其影响因素

杨爽 陈国俊 杨巍 房嬛 仲佳爱 吕成福 薛莲花

杨爽, 陈国俊, 杨巍, 房嬛, 仲佳爱, 吕成福, 薛莲花. 胜坨油田原油温室气体排放特征及其影响因素[J]. 环境科学研究, 2016, 29(7): 978-984.
引用本文: 杨爽, 陈国俊, 杨巍, 房嬛, 仲佳爱, 吕成福, 薛莲花. 胜坨油田原油温室气体排放特征及其影响因素[J]. 环境科学研究, 2016, 29(7): 978-984.
YANG Shuang, CHEN Guojun, YANG Wei, FANG Xuan, ZHONG Jiaai, L Chengfu, XUE Lianhua. Crude Oil Greenhouse Gas Emissions Characteristics and Influencing Factors in Shengtuo Oilfield[J]. Research of Environmental Sciences, 2016, 29(7): 978-984.
Citation: YANG Shuang, CHEN Guojun, YANG Wei, FANG Xuan, ZHONG Jiaai, L Chengfu, XUE Lianhua. Crude Oil Greenhouse Gas Emissions Characteristics and Influencing Factors in Shengtuo Oilfield[J]. Research of Environmental Sciences, 2016, 29(7): 978-984.

胜坨油田原油温室气体排放特征及其影响因素

基金项目: 中国科学院战略性先导科技专项(XDA05030300)

Crude Oil Greenhouse Gas Emissions Characteristics and Influencing Factors in Shengtuo Oilfield

  • 摘要: 为研究油田开发过程中原油在大气条件下的碳排放特征,完善油气系统潜在温室气体排放清单,以胜利油田典型区块——胜坨油田原油为研究对象,通过改进的静态室-气相色谱及质谱法对原油在大气条件下的自然脱气(排放)过程进行模拟试验研究. 结果表明:CH4和CO2是胜坨油田原油溶解气中的两种主要温室气体;将模拟时间(48 h)均分为4个时段,CH4、CO2的主要排放阶段为0~12 h,并且其排放量远高于>12~24、>24~36和>36~48 h,其中,不同温度下CH4、CO2的最大排放率均出现在0~2 h. 原油在空气中暴露时间的长短及所处大气温度的高低直接影响温室气体的累积排放,CH4、CO2的累积排放量均随模拟试验的进行而递增;原油所处环境温度越高,累积排放量越大,3 ℃时CH4、CO2的累积排放量分别为12.498、15.071 g/m3,13 ℃时为20.626、21.004 g/m3,27 ℃时为31.353、26.954 g/m3. CH4、CO2在不同温度下的相对排放量存在差异,表现为低温(3、13 ℃)条件下CH4排放量低于CO2,相对高温(27 ℃)条件下表现相反. 研究显示,原油所处大气环境的温度及暴露时间是影响原油温室气体排放的重要因素.

     

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出版历程
  • 收稿日期:  2015-10-13
  • 修回日期:  2016-02-29
  • 刊出日期:  2016-07-25

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