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Visual detection of gas shows from coal core and cuttings using liquid leak detector

Bulletin of Canadian Petroleum Geology

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DOI: 10.2113/gscpgbull.54.3.292

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Abstract

Portions of core or cutting samples that have active gas shows can be identified by applying a liquid leak detector to the core surface. Although these gas shows can be caused by manmade changes to the coals' internal structure and surface of the core during the coring process, in many cases, the marked gas shows overlie changes in maceral composition, subtle fractures or coal, coal structure and so forth that seemingly are places where natural primary permeability is higher and gas shows would be favored. Given the limited time available for core description before a core is closed in a canister, using the liquid leak detector method to mark gas shows enhances core description by providing a photographic record of places of apparently increased gas flow likely related to enhanced coal permeability that cannot be easily detected otherwise.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Visual detection of gas shows from coal core and cuttings using liquid leak detector
Series title:
Bulletin of Canadian Petroleum Geology
DOI:
10.2113/gscpgbull.54.3.292
Volume
54
Issue:
3
Year Published:
2006
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
292
Last page:
297
Number of Pages:
6