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Wellbore integrity factors for CO2 storage in oil and gas producing areas in the Midwest United States
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|Authors:||Sminchak, J. R.; Moody, Mark; Gupta, Neeraj; Larsen, Glenn|
|Author Affiliations:||Primary: |
Battelle, Columbus, OH, United States
|Volume Title:||Greenhouse Gases|
|Source:||Greenhouse Gases, 7(5), p.817-827. Publisher: John Wiley & Sons, Sussex, United Kingdom. ISSN: 2152-3878|
|Note:||In English. 14 refs.; illus., incl. 3 tables, sketch maps|
|Summary:||The condition of legacy oil and gas wells is an important issue for geologic CO2 storage projects. Many regions with large CO2 point sources coincide with historical oil and gas fields. This is especially apparent in the Midwestern United States, where over one million oil and gas wells are present dating back to the late 1800s. To investigate wellbore integrity factors in this region, the condition of oil and gas wells in Michigan and Ohio was summarized based on well status, depth, construction, age, and plugging specifications. To better understand the impact of well integrity on a local scale, six test study areas were also analyzed. These hypothetical test study areas were based on subsurface area necessary for an industrial scale CO2 storage application. Detailed records were used to categorize well conditions, and corrective actions necessary to repair the wells were then assigned. The results of the test study area analysis provide a real representation of the level of effort necessary to prepare sites for CO2 storage. Actions may involve relatively low-effort tasks to examine wellheads or more extensive well re-entry and plugging. The analysis indicated that many areas may have hundreds of wells, but no wells penetrating the deeper CO2 storage zones. At sites where many wells require corrective action, it may be challenging to efficiently plug and abandon wells. Options such as testing wellhead pressures, surface monitoring of CO2 leakage, and less extensive plugging requirements may help offset costs associated with remediating a large number of wells. Copyright 2016 Society of Chemical Industry and John Wiley & Sons, Ltd.|
|Subjects:||Antrim Shale; Boreholes; Carbon dioxide; Carbon sequestration; Detroit River Group; Devonian; Dundee Limestone; Greenhouse gases; Middle Devonian; Migration of elements; Mitigation; Oil and gas fields; Paleozoic; Point sources; Pollution; Storage coefficient; Upper Paleozoic; Well logs; Wellhead protection; Appalachian Basin; Michigan; Michigan Basin; Midwest; North America; Ohio; United States|
|Coordinates:||N414500 N482500 W0823000 W0901500|
N382500 N420000 W0803200 W0845000
|Copyright Information:||GeoRef, Copyright 2021 American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom|
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