Coverart for item
The Resource Geological studies on the COST No. B-2 well, U.S. Mid-Atlantic Outer Continental Shelf Area, P.A. Scholle, editor

Geological studies on the COST No. B-2 well, U.S. Mid-Atlantic Outer Continental Shelf Area, P.A. Scholle, editor

Label
Geological studies on the COST No. B-2 well, U.S. Mid-Atlantic Outer Continental Shelf Area
Title
Geological studies on the COST No. B-2 well, U.S. Mid-Atlantic Outer Continental Shelf Area
Statement of responsibility
P.A. Scholle, editor
Contributor
Editor
Subject
Language
eng
Summary
The COST No. B-2 well is the first deep stratigraphic test to be drilled on the United States Atlantic Outer Continental Shelf (AOCS) area. The well was drilled on the eastern flank of the Baltimore Canyon trough to a total depth of 16,043 feet; it penetrated a section composed almost entirely of sand and shale with subordinate amounts of limestone, coal, and lignite. Biostratigraphic studies have shown that the uppermost 5,000 feet is of Tertiary and Quaternary age and was deposited in nonmarine to deep marine environments. The Upper Cretaceous section is about 3,000 feet thick and is of dominantly shallow marine origin. The basal 8,000 feet of sediment has been tentatively determined to be entirely of Early Cretaceous age, the basal sediments being dated as Berriasian. This Lower Cretaceous section is primarily nonmarine to very shallow marine in origin. Examination of cores, well cuttings, and electric logs shows that thick potential reservoir sands are found through much of the section. However, porosity and permeability decrease strikingly in the deeper parts of the Lower Cretaceous section as a result of compaction and cementation. Most of the sands are quite feldspathic, and progressive decomposition of feldspar stimulates authigenic clay and silica formation. Studies of color alteration of visible organic matter, organic geochemistry, and vitrinite reflectance show that although many units have high organic-carbon contents, moderately low geothermal gradients may have retarded thermal maturation. This, in conjunction with the scarcity of marine-derived organic matter in the lower part of the section, suggests a relatively low potential for the generation of liquid hydrocarbons. However, the overall combination of source beds, reservoirs, seals, structures, and thermal gradients may be favorable for the generation and entrapment of natural gas. Furthermore, the presence of reservoir rocks, seals, and trapping structures may indicate a significant potential for entrapment of either natural gas or petroleum that was generated deeper in the basin and then migrated either laterally or vertically
Member of
Cataloging source
DLC
Dewey number
  • 557.3/08 s
  • 551.7/8/09749
Government publication
federal national government publication
Illustrations
  • illustrations
  • maps
Index
no index present
LC call number
QE75
LC item number
.C5 no. 750
Literary form
non fiction
Nature of contents
bibliography
http://library.link/vocab/relatedWorkOrContributorName
Scholle, Peter A.
Series statement
Geological Survey circular
Series volume
750
http://library.link/vocab/subjectName
  • Geology, Stratigraphic
  • Geology, Stratigraphic
  • Geology
  • Continental shelf
Label
Geological studies on the COST No. B-2 well, U.S. Mid-Atlantic Outer Continental Shelf Area, P.A. Scholle, editor
Instantiates
Publication
Bibliography note
Includes bibliographical references (pages 69-71)
Carrier category
volume
Carrier category code
nc
Carrier MARC source
rdacarrier
Content category
text
Content type code
txt
Content type MARC source
rdacontent
Control code
ocm02897246
Dimensions
26 cm.
Extent
iv, 71 pages
Lccn
77072294
Media category
unmediated
Media MARC source
rdamedia
Media type code
n
Other physical details
illustrations, map
System control number
(OCoLC)02897246
Label
Geological studies on the COST No. B-2 well, U.S. Mid-Atlantic Outer Continental Shelf Area, P.A. Scholle, editor
Publication
Bibliography note
Includes bibliographical references (pages 69-71)
Carrier category
volume
Carrier category code
nc
Carrier MARC source
rdacarrier
Content category
text
Content type code
txt
Content type MARC source
rdacontent
Control code
ocm02897246
Dimensions
26 cm.
Extent
iv, 71 pages
Lccn
77072294
Media category
unmediated
Media MARC source
rdamedia
Media type code
n
Other physical details
illustrations, map
System control number
(OCoLC)02897246

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