Sylhet-Kopili/Barail-Tipam Composite Total Petroleum System, Assam Geologic Province, India

Identification Information:
Citation:
Citation Information:
Originator: Wandrey, C.J.
Publication Date: 2003
Title: Sylhet-Kopili/Barail-Tipam Composite Total Petroleum System, Assam Geologic Province, India
Geospatial Data Presentation Form: Online Reports or Chapters
Online Linkage: http://pubs.usgs.gov/bul/2208/D/
Publication Information:
Publisher: U.S. Geological Survey
Series Information:
Series Name: U.S. Geological Survey Bulletin
Issue Identification: B-2208-D
Larger Work Citation:
Citation Information:
Originator: Wandrey, C. J.
Publication Date: 2000
Title: Petroleum Systems and Related Geologic Studies in Region 8, South Asia
Geospatial Data Presentation Form: Online Reports or Chapters
Series Information:
Series Name: U.S. Geological Survey Bulletin
Issue Identification: B-2208
Description:
Abstract: The Sylhet-Kopili/Barail-Tipam Composite Total Petroleum system (TPS) (803401) is located in the Assam Province in northeasternmost India and includes the Assam Shelf south of the Brahmaputra River. The area is primarily a southeast-dipping shelf overthrust by the Naga Hills on the southeast and the Himalaya Mountain range to the north. The rocks that compose this TPS are those of the Sylhet-Kopili/Barail-Tipam composite petroleum system. These rocks are those of the Eocene-Oligocene Jaintia Group Sylhet and Kopili Formations, the Oligocene Barail Group, and the Oligocene-Miocene Surma and Tipam Groups. These groups include platform carbonates, shallow marine shales and sandstones, and the sandstones, siltstones, shales, and coals of deltaic and lagoonal facies. Source rocks include the Sylhet and Kopili Formation shales, Barail Group coals and shales, and in the south the Surma Group shales. Total organic carbon content is generally low, averaging from 0.5 to 1.8 percent; it is as high as 9 percent in the Barail Coal Shales. Maturities are generally low, from Ro (vitrinite reflectance) 0.45 to 0.7 percent where sampled. Maturity increases to the southeast near the Naga thrust fault and can be expected to be higher in the subthrust. Generation began in early Pliocene. Migration is primarily updip to the northwest (< 5 to 15 kilometers) along the northeast-trending slope of the Assam Shelf, and vertical migration occurs through reactivated basement-rooted faults associated with the plate collisions. Reservoir rocks are carbonates of the Sylhet Formation, interbedded sandstones of the Kopili Formation and sandstones of the Barail, Surma, and Tipam Groups. Permeability ranges from less than 8 mD (millidarcies) to as high as 800 mD in the Tipam Group. Porosity ranges from less than 7 percent to 30 percent. Traps are primarily anticlines and faulted anticlines with a few subtle stratigraphic traps. There is also a likelihood of anticlinal traps in the subthrust. Seals include interbedded Oligocene and Miocene shales and clays, and the thick clays of the Pliocene Gurjan Group.
Purpose: In support of USGS Energy Program World Energy Project
Time Period of Content:
Time Period Information:
Single Date/Time:
Calendar Date: 2004
Currentness Reference: Publication Date
Status:
Progress: Complete
Maintenance and Update Frequency: Irregular
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: 93.189
East Bounding Coordinate: 96.32
North Bounding Coordinate: 27.909
South Bounding Coordinate: 35.219
Keywords:
Theme:
Theme Keyword Thesaurus: Gateway to the Earth Thesaurus
Theme Keyword: Oil shale resources
Theme Keyword: Oil sand resources
Theme Keyword: Coalbed methane resources
Theme Keyword: Natural gas resources
Theme Keyword: Economic geology
Theme:
Theme Keyword Thesaurus: ArcIMS Metadata Server Theme Codes Thesaurus
Theme Keyword: geoScientificInformation
Theme Keyword: economy
Theme Keyword: environment
Theme:
Theme Keyword Thesaurus: USGS Energy Program Themes Thesaurus
Theme Keyword: Earth Science
Theme Keyword: Natural Resources
Theme Keyword: U.S. Geological Survey
Theme Keyword: USGS
Theme Keyword: Geology
Theme Keyword: Oil
Theme Keyword: Natural Gas
Theme Keyword: Methane
Theme Keyword: Petroleum
Theme Keyword: Resource Assessment
Theme:
Theme Keyword Thesaurus: none
Theme Keyword: World Petroleum Assessment
Theme Keyword: World Energy Assessment
Place:
Place Keyword Thesaurus: USGS Energy Program Petroleum Assessment Units
Place Keyword: Sylhet-Kopili/Barail-Tipam Composite Total Petroleum System 803401
Place Keyword: Sylhet-Kopili/Barail-Tipam Composite, Assessment Unit 80340101
Place Keyword: Assam, Province 8034
Place Keyword: South Asia, Region 8
Place:
Place Keyword Thesaurus: none
Place Keyword: India
Access Constraints: none
Use Constraints: none
Point of Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: U.S. Geological Survey, Central Energy Resources Team
Contact Person: Craig Wandrey
Contact Address:
Address Type: mailing address
Address: U.S. Geological Survey, Box 25046, MS 939, Denver Federal Center
City: Denver
State or Province: Colorado
Postal Code: 80225
Contact Voice Telephone: (303) 236-5341
Contact Electronic Mail Address: cwandrey@usgs.gov
Distribution Information:
Resource Description: Other Documents
Metadata Reference Information:
Metadata Date: 20050228
Metadata Review Date: 20050228
Metadata Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: U.S. Geological Survey, Central Energy Resources Team
Contact Person: Chris Skinner
Contact Address:
Address Type: mailing address
Address: U.S. Geological Survey, Box 25046, MS 939, Denver Federal Center
City: Denver
State or Province: Colorado
Postal Code: 80225
Contact Electronic Mail Address: datamgt@usgs.gov
Contact Instructions: For inquiries regarding this document, please include the metadata contact person's name, dataset name, and publication series and number.
Metadata Standard Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata Standard Version: FGDC-STD-001-1998

ESRI Metadata

Esri:
Metadata ID: {C0704E1F-2BD0-4938-8D5E-B00B40EB1B16}
Creation Date: 20050302
Creation Time: 15253900
Synchronize Once: TRUE
Published Document ID: {D6E640F5-74FB-43E4-9A9C-AEE1FB4C9F39}
Published Status: Published