首頁(yè) > 資料下載 > Marcellus頁(yè)巖氣生命周期溫室氣體排放Life cycle greenhouse gas emissions of Marcellus shale gas
Marcellus頁(yè)巖氣生命周期溫室氣體排放Life cycle greenhouse gas emissions of Marcellus shale gas Marcellus頁(yè)巖氣生命周期溫室氣體排放Life cycle greenhouse gas emissions of Marcellus shale gas

Marcellus頁(yè)巖氣生命周期溫室氣體排放Life cycle greenhouse gas emissions of Marcellus shale gas

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  • 更新時(shí)間：2021-09-09
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這項研究估計了溫室氣體（GHG）在生產(chǎn)過(guò)程中的生命周期排放量。 Marcellus頁(yè)巖天然氣及其與美國全國平均天然氣排放量的比較 在馬塞盧斯頁(yè)巖重大開(kāi)發(fā)之前，2008年產(chǎn)生的排放。我們 估計一個(gè)典型的Marcellus頁(yè)巖井的開(kāi)發(fā)和完井將導致 大約5500噸二氧化碳當量排放或約1.8克CO2e/MJ氣體 假設對典型井的生產(chǎn)壽命進(jìn)行保守估計。這個(gè) 表示溫室氣體排放量相對于平均國內氣體增加11%(不包括) 燃燒)并且當包括燃燒時(shí)，相對于生命周期排放增加3%。 Marcellus頁(yè)巖天然氣生命周期的溫室氣體排放估計為 63-75g CO2e/MJ產(chǎn)氣，平均產(chǎn)氣68g CO2e/MJ。 馬塞盧斯頁(yè)巖天然氣的溫室氣體排放量與進(jìn)口液化天然氣相當。 天然氣。來(lái)自Marcellus頁(yè)巖的天然氣通常具有較低的生命周期溫室氣體排放 比煤炭用于在沒(méi)有任何有效碳捕獲和儲存的情況下發(fā)電 工藝，20-50%取決于工廠(chǎng)效率和天然氣排放可變性。 由于 生產(chǎn)量和火炬、建筑和運輸的多樣性。

This study estimates the life cycle greenhouse gas (GHG) emissions from the production of Marcellus shale natural gas and compares its emissions with national average US natural gas emissions produced in the year 2008, prior to any significant Marcellus shale development. We estimate that the development and completion of a typical Marcellus shale well results in roughly 5500 t of carbon dioxide equivalent emissions or about 1.8 g CO2e/MJ of gas produced, assuming conservative estimates of the production lifetime of a typical well. This represents an 11% increase in GHG emissions relative to average domestic gas (excluding combustion) and a 3% increase relative to the life cycle emissions when combustion is included. The life cycle GHG emissions of Marcellus shale natural gas are estimated to be 63–75 g CO2e/MJ of gas produced with an average of 68 g CO2e/MJ of gas produced. Marcellus shale natural gas GHG emissions are comparable to those of imported liquefied natural gas. Natural gas from the Marcellus shale has generally lower life cycle GHG emissions than coal for production of electricity in the absence of any effective carbon capture and storage processes, by 20–50% depending upon plant efficiencies and natural gas emissions variability. There is significant uncertainty in our Marcellus shale GHG emission estimates due to eventual production volumes and variability in flaring, construction and transportation.

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