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A material that does not conduct electricity or has only a low electrical conductivity compared to a metal.
Where rock changes produces a reservoir rock under a sealing rock.
The porosity formed by chemical and bacterial modification after the initial sediments were laid down.
May also be in conjunction with several geochemical processes such as cementation reactions and chemical dissolution.
A term used to describe a surface or a seismic reflection that cuts across geologic time (dia across, chrono time).
DHV is the trademarked name for Down Hole Video, Inc.
May be either downhole TV camera or a televiewer (a sonic caliper tool).
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A plug that is commonly set in the tubing hanger above the tubing or in tubing immediately below the wellhead for wellhead isolation.