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Subsurface released methane is reactively transported towards ground surface with a portion converted "> <meta name="twitter:image:src" content="https://authorea.com//d197for5662m48.cloudfront.net/assets/blog/default_image-be9182bca7b6523bb6c72e32e5c12398f36b92d81f6ee7882327b6145744bf1f.jpg">  <meta property="og:title" content="Natural Soils-based Oxidation Mitigates Methane Leakage from Integrity Compromised Legacy Wells" /> <meta property="og:type" content="article" /> <meta property="og:url" content="https://www.authorea.com/doi/full/10.22541/essoar.173152356.66772501/v1?commit=b71464c3a218e930ec3da0ec324846c176875392" /> <meta property="og:image" content="https://authorea.com//d197for5662m48.cloudfront.net/assets/blog/default_image-be9182bca7b6523bb6c72e32e5c12398f36b92d81f6ee7882327b6145744bf1f.jpg" /> <meta property="og:description" content="An increasing number of legacy petroleum wells are reported to suffer integrity failure, releasing methane (CH4) into the subsurface and atmosphere. Subsurface released methane is reactively transported towards ground surface with a portion converted " /> <meta property="og:site_name" content="Authorea" /> <meta property="article:modified_time" content="2024-11-30 20:13:23 UTC" /> <link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/mathquill/0.10.1/mathquill.min.css"/> <meta id='mathquillmin' class='mq-editable-field'> <script type="text/javascript"> var tag = document.querySelector('meta#mathquillmin') var tagStyle = window.getComputedStyle(tag).getPropertyValue('display') if (!tagStyle || tagStyle == 'auto' ){ var message = "mathquill.min.0.10.1.css failed to load, falling back to local copy" localLink = document.createElement('link'); localLink.rel = "stylesheet"; localLink.type = "text/css"; localLink.href = "/assets/mathquill.min.0.10.1.css"; document.head.appendChild(localLink); delete localLink; } </script> <meta property="article:publisher" content="https://www.authorea.com" /> <link rel="stylesheet" type="text/css" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.18.1/styles/default.min.css"/> <meta id='defaultmin' class='hljs-strong'> <script type="text/javascript"> var tag = document.querySelector('meta#defaultmin') var tagStyle = window.getComputedStyle(tag).getPropertyValue('font-weight') if (!tagStyle || tagStyle == 'auto' ){ var message = "default.min.css failed to load, falling back to local copy" localLink = document.createElement('link'); localLink.rel = "stylesheet"; localLink.type = "text/css"; localLink.href = "/assets/default.min.css"; document.head.appendChild(localLink); delete localLink; } </script>  <meta name="citation_publisher" content="Authorea"/> <meta name="citation_title" content="Natural Soils-based Oxidation Mitigates Methane Leakage from Integrity Compromised Legacy Wells"/> <meta name="citation_abstract" content="An increasing number of legacy petroleum wells are reported to suffer integrity failure, releasing methane (CH4) into the subsurface and atmosphere. Subsurface released methane is reactively transported towards ground surface with a portion converted to carbon dioxide by soil microbes. Currently, the extent to which fugitive CH4 oxidation occurs, including microbial taxa responsible and controlling parameters are poorly understood. Here, we examined fugitive CH4 leakage at a legacy well in the Montney region of British Columbia, Canada and find up to 90% is oxidised at rates as high as 230 g of CH4 /m2 of soils/day during summer. Meanwhile, a profound difference in microbiome between soils at the wellhead and background was observed, while modelling suggests that prevailing seasonal temperature will moderate CH4 oxidation extent. Overall, we find that filtration of fugitive CH4 through natural soils can significantly reduce emissions of CH4 and mitigate climate impacts from such sources"/> <meta name="citation_doi" content="10.22541/essoar.173152356.66772501/v1"/> <meta name="citation_pdf_url" content="https://essopenarchive.org/doi/pdf/10.22541/essoar.173152356.66772501" /> <meta name="citation_author" content="Aaron G. 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Cahill<i class="fas fa-envelope preview-author-icon"></i></span><a class="preview-author-orcid" href="https://orcid.org/0000-0002-0528-8782" rel="noopener noreferrer" target="_blank"><img src="https://d197for5662m48.cloudfront.net/assets/icons/omniauth/orcid-ca37582cd91a671ed5cec57770e0e96c01b4b79b8b5b75d8598fc1ddac18c974.svg" /></a>, </li><li class="preview-author"><span class="preview-author-name" data-collab-id="1819245">James McClure</span>, </li><li class="preview-author"><span class="preview-author-name" data-collab-id="1819246">Iain de Jonge Anderson</span><a class="preview-author-orcid" href="https://orcid.org/0000-0002-9438-8194" rel="noopener noreferrer" target="_blank"><img src="https://d197for5662m48.cloudfront.net/assets/icons/omniauth/orcid-ca37582cd91a671ed5cec57770e0e96c01b4b79b8b5b75d8598fc1ddac18c974.svg" /></a></li></ul></div><div class="author-popover" data-collab-id="1819244"><div class="author-popover-info"><div class="author-popover-name">Aaron G. Cahill</div><a class="author-popover-orcid" href="https://orcid.org/0000-0002-0528-8782" rel="noopener noreferrer" target="_blank"><img src="https://d197for5662m48.cloudfront.net/assets/icons/omniauth/orcid-ca37582cd91a671ed5cec57770e0e96c01b4b79b8b5b75d8598fc1ddac18c974.svg" /></a><div class="author-popover-affiliations">Heriot-Watt University</div><p>Corresponding Author:<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="5a3b74393b323336361a322d743b39742f31">[email protected]</a></p><a class="author-popover-profile" href="/users/853908">Author Profile</a></div><div class="author-popover-avatar"><img src="data:image/jpg;base64,iVBORw0KGgoAAAANSUhEUgAAAJYAAACWCAYAAAA8AXHiAAAABGdBTUEAALGP C/xhBQAAACBjSFJNAAB6JgAAgIQAAPoAAACA6AAAdTAAAOpgAAA6mAAAF3Cc ulE8AAAABmJLR0QAAAAAAAD5Q7t/AAAAB3RJTUUH6AsVEBcFTxt2mgAAGhpJ REFUeAHtwQm4pmdd3/Hv738/73nPfs6s2SELBIOkYTFAJFBBpIAJAiEhoBDE WrQubd3Rq3Xp4qW1varVy0q1tl6I1YAFIkUWBRGtRUEIm4CgJGSf7ezL+9z3 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class="author-popover-affiliations">Heriot-Watt University</div><a class="author-popover-profile" href="/users/853909">Author Profile</a></div><div class="author-popover-avatar"><img src="data:image/jpg;base64,iVBORw0KGgoAAAANSUhEUgAAAJYAAACWCAMAAAAL34HQAAAABGdBTUEAALGP C/xhBQAAACBjSFJNAAB6JgAAgIQAAPoAAACA6AAAdTAAAOpgAAA6mAAAF3Cc ulE8AAAC2VBMVEVSvIlRu4hRvIhRvIlTvIpTvIlQu4dQu4hHt4E9s3o/tHxO uoZIuIJGt4BFt4BGt4FLuYRJuIJJuINPu4dUvYtBtX2d2bz3/Pri8+vl9e3k 9Ozo9u9VvYtMuYVUvIpHuIFmw5b////0+vfz+vf+/v5hwZM+tHuI0a7w+fXy +vb8/v3m9e48s3qu38hUvYpnxJe95dI5snjr9/H2+/mq3sX5/Pv9/v37/fxl w5b9/v73/PlDtn9gwZI7s3mr3sb8/f15y6M6snmo3cT8/fzX7+M6snhNuoZA tX1yyJ6c2LvL69s9tHtKuYSK0a++5dLp9vD+//7+/v96y6So3cPX7+Te8ui+ 5tNxyJ6R1LTI6dnK6tvc8ec1sHUmq2uv4MiJ0a5nxJjt+PIzsHS/5tM3sXdb v4/v+PRDtn74/PpEtn9fwZKx4covrnF7zKWn3MNXvo1KuIPY8ORPuoZqxZrH 6dmG0KxCtX5vx51Ctn5txpue2b3J6tp2yqHD6NZZvo1AtXx8zKZWvYxKuYNX vow6s3me2bxhwpNjwpRFtoBYvo2CzqpWvYvA5tTq9vDd8edPuoeg2r6P07Jl 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class="author-popover-arrow" data-popper-arrow=""></div></div><div class="author-popover" data-collab-id="1819246"><div class="author-popover-info"><div class="author-popover-name">Iain de Jonge Anderson</div><a class="author-popover-orcid" href="https://orcid.org/0000-0002-9438-8194" rel="noopener noreferrer" target="_blank"><img src="https://d197for5662m48.cloudfront.net/assets/icons/omniauth/orcid-ca37582cd91a671ed5cec57770e0e96c01b4b79b8b5b75d8598fc1ddac18c974.svg" /></a><div class="author-popover-affiliations">Heriot-Watt University</div><a class="author-popover-profile" href="/users/853910">Author Profile</a></div><div class="author-popover-avatar"><img src="data:image/jpg;base64,iVBORw0KGgoAAAANSUhEUgAAAJYAAACWCAMAAAAL34HQAAAABGdBTUEAALGP C/xhBQAAACBjSFJNAAB6JgAAgIQAAPoAAACA6AAAdTAAAOpgAAA6mAAAF3Cc ulE8AAACT1BMVEVItqxHtatHtqxGtatJtqxAsqg7saY7sKY+sqdFtKpCs6ky raIxraIxraE2rqNKtqw1rqPB5uP////w+fjz+vnx+fn6/fzs9/ZDtKlEtKpK tq08saZWu7Lj9PLh8/Hu+PfL6uc3r6TP7On9/v5As6hMt60vrKCh2dRTurHK 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src="/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js"></script><script>document.addEventListener('DOMContentLoaded', function () { let popperInstance = null; const authors = document.querySelectorAll('.preview-author-name') const popperOptions = { placement: 'bottom', modifiers: [{ name: 'flip', enabled: false, }, { name: 'offset', options: { offset: [0, 12] } }] } function showPopover (author, popover) { popover.setAttribute('data-show', '') popperInstance = Popper.createPopper(author, popover, popperOptions) } function hidePopover () { if (!popperInstance) return const el = document.querySelector('.author-popover[data-show]') if (!el) return el.removeAttribute('data-show') popperInstance.destroy() popperInstance = null } authors.forEach(author => { const id = author.getAttribute('data-collab-id') const popover = document.querySelector(`.author-popover[data-collab-id="${id}"]`) author.addEventListener('click', () => { if (popperInstance) { hidePopover() } showPopover(author, popover) }) }) document.addEventListener('click', (e) => { if (!popperInstance) return const container = document.querySelector('.preview-author-list') if (container.contains(e.target)) return hidePopover() }) })</script><div class="article-paragraph preview-abstract"><h2 class="preview-abstract-heading">Abstract</h2><div>An increasing number of legacy petroleum wells are reported to suffer integrity failure, releasing methane (CH4) into the subsurface and atmosphere. Subsurface released methane is reactively transported towards ground surface with a portion converted to carbon dioxide by soil microbes. Currently, the extent to which fugitive CH4 oxidation occurs, including microbial taxa responsible and controlling parameters are poorly understood. Here, we examined fugitive CH4 leakage at a legacy well in the Montney region of British Columbia, Canada and find up to 90% is oxidised at rates as high as 230 g of CH4 /m2 of soils/day during summer. Meanwhile, a profound difference in microbiome between soils at the wellhead and background was observed, while modelling suggests that prevailing seasonal temperature will moderate CH4 oxidation extent. Overall, we find that filtration of fugitive CH4 through natural soils can significantly reduce emissions of CH4 and mitigate climate impacts from such sources</div></div><div class="review-timeline"><div class="dashboard-container"><div class="publication-status-footer"><h4 class="header">Preprint timeline</h4></div><div class="events-container"><div class="version-container"><div class="entry"><span class="bar"></span><span class="indicator"></span><span class="time-box"><span>09 Nov 2024</span></span><span class="message">Submitted to <b><i>ESS Open Archive </i></b> <a target="_blank" rel="noopener noreferrer" href="/inst/20904"><i class="fas fa-external-link-alt"></i></a></span></div><div class="entry"><span class="bar"></span><span class="indicator"></span><span class="time-box"><span>13 Nov 2024</span></span><span class="message">Published in <b><i>ESS Open Archive </i></b></span></div></div></div></div></div><div class="preview-publication-status"></div></div></div> <div id="article-content"> </div> </div>  <div style="clear: both"></div>  <div id='article-sidebar-portal'></div> <script> initialServerStore = {"article":{"titleBlock":{"block_content":null,"type":"htmlBlock","html":"Natural Soils-based Oxidation Mitigates Methane Leakage from Integrity\nCompromised Legacy Wells","render_report":null,"raw":"Natural Soils-based Oxidation Mitigates Methane Leakage from Integrity\nCompromised Legacy Wells","name":"title","format":"html","url":"/users/853908/articles/1239299/master/file/title.html","folder_url":"/users/853908/articles/1239299/master/folder/.","path":"title.html","old_path":null,"collapsed":false,"sha":"94e25f323b727d4d727a29c9723a047ad103b15e","captionBlock":null,"has_data":false,"has_ipython_notebook":false,"config":null},"id":1239299,"sha":"b71464c3a218e930ec3da0ec324846c176875392","blocks":[],"oldBlocks":[],"oldLayout":null,"online":true,"layout":"abstract.html\ndata/1013765_0_merged_1730988989/1013765_0_merged_1730988989.pdf\ndata/Cahill et al 2024 GRL DRAFT FINAL/Cahill et al 2024 GRL DRAFT FINAL.docx\ndata/Supplementary Information Cahill et al GRL Submission FINAL/Supplementary Information Cahill et al GRL Submission FINAL.docx\n","references":[],"referenceSorting":{"key":"default","ascending":true},"citationHash":{},"commits":null,"version":0},"commitToView":"b71464c3a218e930ec3da0ec324846c176875392","commentToView":null,"onboarding":false} initialFlashMessagesForReact = [] </script> <script src="https://d197for5662m48.cloudfront.net/assets/editable_article_manifest_react-ddeeb8194703aca81267c69ccb1330a3afea795f89456883e9fb9d4f9047c520.js" defer="defer"></script> <link rel="stylesheet" type="text/css" href="//cdnjs.cloudflare.com/ajax/libs/KaTeX/0.11.1/katex.min.css"/> <meta id='katexmin' class='katex'> <script type="text/javascript"> var tag = document.querySelector('meta#katexmin') var tagStyle = window.getComputedStyle(tag).getPropertyValue('font-family') if (!tagStyle || tagStyle == 'auto' ){ var message = "katex.min.0.11.1.css failed to load, falling back to local copy" localLink = document.createElement('link'); 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