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首页> 外文期刊>Environmental Science & Technology >Comparison of Water Use for Hydraulic Fracturing for Unconventional Oil and Gas versus Conventional Oil
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Comparison of Water Use for Hydraulic Fracturing for Unconventional Oil and Gas versus Conventional Oil

机译：非常规油气与常规油气水力压裂用水的比较

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摘要

We compared water use for hydraulic fracturing (HF) for oil versus gas production within the Eagle Ford shale. We then compared HF water use for Eagle Ford oil with Bakken oil, both plays accounting for two-thirds of U.S. unconventional oil production in 2013. In the Eagle Ford, we found similar average water use in oil and gas zones per well (4.7-4.9 × 10~6 gallons [gal]/well). However, about twice as much water is used per unit of energy (water-to-oil ratio, WOR, vol water/vol oil) in the oil zone (WOR: 1.4) as in the gas zone (water-to-oil-equivalent-ratio, WOER: 0.6). We also found large differences in water use for oil between the two plays, with mean Bakken water use/well (2.0 × 10~6 gal/well) about half that in the Eagle Ford, and a third per energy unit We attribute these variations mostly to geological differences. Water-to-oil ratios for these plays (0.6-1.4) will further decrease (0.2-0.4) based on estimated ultimate oil recovery of wells. These unconventional water-to-oil ratios (0.2-1.4) are within the lower range of those for U.S. conventional oil production (WOR: 0.1-5). Therefore, the U.S. is using more water because HF has expanded oil production, not because HF is using more water per unit of oil production.
机译：我们在Eagle Ford页岩中比较了水力压裂用水（HF）的石油生产和天然气生产。然后，我们比较了Eagle Ford油和Bakken油的HF水使用量，两者在2013年占美国非常规石油产量的三分之二。在Eagle Ford中，我们发现每口井的油气区平均用水量相似（4.7- 4.9×10〜6加仑[gal] /孔。但是，在油区（WOR：1.4）中，每单位能量（水与油的比，WOR，水/油的体积比）的能量消耗大约是气区（水与油的能量）的两倍。等效比率，WOER：0.6）。我们还发现两个油田之间的石油用水差异很大，Bakken的平均用水量/井（2.0×10〜6 gal /井）约为Eagle Ford的一半，每能量单位的三分之一主要是地质差异。基于估计的最终油井采收率，这些油田的水油比（0.6-1.4）将进一步降低（0.2-0.4）。这些非常规的水油比（0.2-1.4）在美国常规石油生产（WOR：0.1-5）的较低范围内。因此，美国使用更多的水是因为HF扩大了石油生产，而不是因为HF在每单位石油生产中使用了更多的水。

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  • 来源
    《Environmental Science & Technology》 |2014年第20期|12386-12393|共8页
  • 作者

    B. R. Scanlon; R. C. Reedy; J.-P. Nicot;

  • 作者单位

    Bureau of Economic Geology, Jackson School of Geosciences, The University of Texas at Austin, 10100 Burnet Road, Austin, Texas 78758, United States;

    Bureau of Economic Geology, Jackson School of Geosciences, The University of Texas at Austin, 10100 Burnet Road, Austin, Texas 78758, United States;

    Bureau of Economic Geology, Jackson School of Geosciences, The University of Texas at Austin, 10100 Burnet Road, Austin, Texas 78758, 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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  • 正文语种 eng
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