Site 1026

Three Circulation Obviation Retrofit Kit (CORK) borehole observatories were installed during Expedition 301 in Holes 1026B, U1301A, and U1301B. The first of these systems replaced a CORK observatory deployed during an earlier expedition; the second and third are in newly drilled and cased holes. The...

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Bibliographic Details
Main Author: Anon
Format: Book Chapter
Language:English
Subjects:
Marine
Online Access:Get full text
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Summary:Three Circulation Obviation Retrofit Kit (CORK) borehole observatories were installed during Expedition 301 in Holes 1026B, U1301A, and U1301B. The first of these systems replaced a CORK observatory deployed during an earlier expedition; the second and third are in newly drilled and cased holes. The new Hole 1026B CORK system was the simplest of the systems deployed during Expedition 301. It comprised a CORK-II body with 4 one half inch casing extending to 201.5 meters below seafloor (mbsf) and a single packer element set in casing near the bottom of the 4 one half inch casing. No 4 one half inch casing was installed below the packer element sub because the hole was completely cased at depth, and there was no need to provide additional protection for the instruments hanging below the bottom plug.
ISSN:1930-1014
1930-1014
DOI:10.2204/iodp.proc.301.107.2005