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首页> 外文期刊>Environmental Science & Technology >Hydrocarbon and Carbon Dioxide Fluxes from Natural Gas Well Pad Soils and Surrounding Soils in Eastern Utah
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Hydrocarbon and Carbon Dioxide Fluxes from Natural Gas Well Pad Soils and Surrounding Soils in Eastern Utah

机译：犹他州东部天然气井垫土和周围土壤的碳氢化合物和二氧化碳通量

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摘要

We measured fluxes of methane, nonmethane hydrocarbons, and carbon dioxide from natural gas well pad soils and from nearby undisturbed soils in eastern Utah. Methane fluxes varied from less than zero to more than 38 g m~(-2) h~(-1). Fluxes from well pad soils were almost always greater than from undisturbed soils. Fluxes were greater from locations with higher concentrations of total combustible gas in soil and were inversely correlated with distance from well heads. Several lines of evidence show that the majority of emission fluxes (about 70%) were primarily due to subsurface sources of raw gas that migrated to the atmosphere, with the remainder likely caused primarily by re-emission of spilled liquid hydrocarbons. Total hydrocarbon fluxes during summer were only 39 (16, 97)% as high as during winter, likely because soil bacteria consumed the majority of hydrocarbons during summer months. We estimate that natural gas well pad soils account for 4.6 × 10~(-4) (1.6 × 10~(-4), 1.6 × 10~(-3))% of total emissions of hydrocarbons from the oil and gas industry in Utah's Uinta Basin. Our undisturbed soil flux measurements were not adequate to quantify rates of natural hydrocarbon seepage in the Uinta Basin.
机译：我们测量了天然气井垫土壤和犹他州东部附近未被扰动的土壤中甲烷，非甲烷碳氢化合物和二氧化碳的通量。甲烷通量从小于零到大于38 g m〜（-2）h〜（-1）不等。井垫土壤的通量几乎总是比未扰动土壤的通量大。土壤中总可燃气体浓度较高的位置的通量更大，并且与距井口的距离成反比。有几条证据表明，大部分的排放通量（约70％）主要是由于地下气体的原始来源迁移到大气中，其余的可能主要是由泄漏的液态烃的再排放引起的。夏季的总碳氢通量仅为冬季的39（16，97）％，可能是因为土壤细菌在夏季消耗了大部分碳氢化合物。我们估计天然气井垫土占石油和天然气行业碳氢化合物总排放量的4.6×10〜（-4）（1.6×10〜（-4），1.6×10〜（-3））％。犹他州的尤因塔盆地。我们未扰动的土壤通量测量值不足以量化Uinta盆地中天然烃的渗透率。

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  • 来源
    《Environmental Science & Technology》 |2017年第20期|11625-11633|共9页
  • 作者

    Lyman Seth N.; Watkins Cody; Jones Colleen P.; Mansfield Marc L.; McKinley Michael; Kenney Donna; Evans Jordan D.;

  • 作者单位

    Bingham Research Center, Utah State University, 320 North Aggie Boulevard, Vernal, UT, United States,Department of Chemistry and Biochemistry, Utah State University, 4820 Old Main Hill, Logan, UT, United States;

    Bingham Research Center, Utah State University, 320 North Aggie Boulevard, Vernal, UT, United States;

    Bingham Research Center, Utah State University, 320 North Aggie Boulevard, Vernal, UT, United States,Department of Plants, Soils and Climate, Utah State University, 4820 Old Main Hill, Logan, UT, United States;

    Bingham Research Center, Utah State University, 320 North Aggie Boulevard, Vernal, UT, United States,Department of Chemistry and Biochemistry, Utah State University, 4820 Old Main Hill, Logan, UT, United States;

    Bureau of Land Management, 440 West 200 South, Salt Lake City, UT, United States;

    Bureau of Land Management, 440 West 200 South, Salt Lake City, UT, United States;

    Bingham Research Center, Utah State University, 320 North Aggie Boulevard, Vernal, UT, United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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