Shale gas production: potential versus actual greenhouse gas emissions

Estimates of greenhouse gas (GHG) emissions from shale gas production and use are controversial. Here we assess the level of GHG emissions from shale gas well hydraulic fracturing operations in the United States during 2010. Data from each of the approximately 4000 horizontal shale gas wells brought...

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Main Authors: O'Sullivan, Francis Martin, Paltsev, Sergey
Other Authors: Massachusetts Institute of Technology. Joint Program on the Science & Policy of Global Change
Format: Article
Language:en_US
Published: IOP Publishing 2013
Online Access:http://hdl.handle.net/1721.1/78849
https://orcid.org/0000-0003-3287-0732
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author O'Sullivan, Francis Martin
Paltsev, Sergey
author2 Massachusetts Institute of Technology. Joint Program on the Science & Policy of Global Change
author_facet Massachusetts Institute of Technology. Joint Program on the Science & Policy of Global Change
O'Sullivan, Francis Martin
Paltsev, Sergey
author_sort O'Sullivan, Francis Martin
collection MIT
description Estimates of greenhouse gas (GHG) emissions from shale gas production and use are controversial. Here we assess the level of GHG emissions from shale gas well hydraulic fracturing operations in the United States during 2010. Data from each of the approximately 4000 horizontal shale gas wells brought online that year are used to show that about 900 Gg CH[subscript 4] of potential fugitive emissions were generated by these operations, or 228 Mg CH[subscript 4] per well—a figure inappropriately used in analyses of the GHG impact of shale gas. In fact, along with simply venting gas produced during the completion of shale gas wells, two additional techniques are widely used to handle these potential emissions: gas flaring and reduced emission 'green' completions. The use of flaring and reduced emission completions reduce the levels of actual fugitive emissions from shale well completion operations to about 216 Gg CH[subscript 4], or 50 Mg CH[subscript 4] per well, a release substantially lower than several widely quoted estimates. Although fugitive emissions from the overall natural gas sector are a proper concern, it is incorrect to suggest that shale gas-related hydraulic fracturing has substantially altered the overall GHG intensity of natural gas production.
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spelling mit-1721.1/788492022-09-30T11:09:21Z Shale gas production: potential versus actual greenhouse gas emissions O'Sullivan, Francis Martin Paltsev, Sergey Massachusetts Institute of Technology. Joint Program on the Science & Policy of Global Change MIT Energy Initiative O'Sullivan, Francis Martin Paltsev, Sergey Estimates of greenhouse gas (GHG) emissions from shale gas production and use are controversial. Here we assess the level of GHG emissions from shale gas well hydraulic fracturing operations in the United States during 2010. Data from each of the approximately 4000 horizontal shale gas wells brought online that year are used to show that about 900 Gg CH[subscript 4] of potential fugitive emissions were generated by these operations, or 228 Mg CH[subscript 4] per well—a figure inappropriately used in analyses of the GHG impact of shale gas. In fact, along with simply venting gas produced during the completion of shale gas wells, two additional techniques are widely used to handle these potential emissions: gas flaring and reduced emission 'green' completions. The use of flaring and reduced emission completions reduce the levels of actual fugitive emissions from shale well completion operations to about 216 Gg CH[subscript 4], or 50 Mg CH[subscript 4] per well, a release substantially lower than several widely quoted estimates. Although fugitive emissions from the overall natural gas sector are a proper concern, it is incorrect to suggest that shale gas-related hydraulic fracturing has substantially altered the overall GHG intensity of natural gas production. 2013-05-09T14:16:30Z 2013-05-09T14:16:30Z 2012-11 2012-06 Article http://purl.org/eprint/type/JournalArticle 1748-9326 http://hdl.handle.net/1721.1/78849 O’Sullivan, Francis, and Sergey Paltsev. “Shale Gas Production: Potential Versus Actual Greenhouse Gas Emissions.” Environmental Research Letters 7.4 (2012): 044030. ©2012 IOP Publishing https://orcid.org/0000-0003-3287-0732 en_US http://dx.doi.org/10.1088/1748-9326/7/4/044030 Environmental Research Letters Creative Commons Attribution-Noncommercial-Share Alike 3.0 http://creativecommons.org/licenses/by-nc-sa/3.0/ application/pdf IOP Publishing IOP
spellingShingle O'Sullivan, Francis Martin
Paltsev, Sergey
Shale gas production: potential versus actual greenhouse gas emissions
title Shale gas production: potential versus actual greenhouse gas emissions
title_full Shale gas production: potential versus actual greenhouse gas emissions
title_fullStr Shale gas production: potential versus actual greenhouse gas emissions
title_full_unstemmed Shale gas production: potential versus actual greenhouse gas emissions
title_short Shale gas production: potential versus actual greenhouse gas emissions
title_sort shale gas production potential versus actual greenhouse gas emissions
url http://hdl.handle.net/1721.1/78849
https://orcid.org/0000-0003-3287-0732
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