Geological evolution and analysis of confirmed or suspected gas hydrate localities

Technical Report · Wed Nov 01 04:00:00 EST 1989

OSTI ID:7053202

Finley, P D; Krason, J

We investigated the relationship of geological environments on gas hydrate formation and stability by basin analysis of gas hydrate sites. Basin analyses were performed on 21 offshore locations with direct or indirect evidence of gas hydrates. Extensive geological investigations were conducted for each study region comprising one or more gas hydrate locations. Sediment composition, provenance, and depositional history were documented for each study region. Structural development of the sedimentary basin was determined using drilling results and seismic reflection profiles. Potential for generation of biogenic methane and conventional thermogenic hydrocarbons was assessed by analysis of existing geochemical data and by thermal modeling. All available seismic data, both published and unpublished, were examined for evidence of gas hydrates. Bottom simulating reflectors (BSRs) and other seismic anomalies were mapped. Drilling evidence of possible gas hydrates was reviewed. Based on the limited available information, conditional assessments of gas resources were derived. Quantities of gas contained both in the gas hydrate and possibly trapped beneath the gas hydrate stability zone were estimated. 93 refs., 37 figs., 2 tabs.

• Research Organization: Geoexplorers International, Inc., Denver, CO (USA)
• Sponsoring Organization: DOE/FE
• DOE Contract Number: AC21-84MC21181
• OSTI ID: 7053202
• Report Number(s): DOE/MC/21181-1950-Vol.15; ON: DE90000452
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
030200* -- Natural Gas-- Reserves
Geology
& Exploration
ALKANES
ASIA
ATLANTIC OCEAN
AUSTRALASIA
AUSTRALIA
BERING SEA
BLACK SEA
CANADA
CARIBBEAN SEA
DOCUMENT TYPES
EVALUATION
EXPLORATION
GAS HYDRATES
GEOLOGIC DEPOSITS
GEOLOGIC STRUCTURES
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GULF OF MEXICO
HYDRATES
HYDROCARBONS
JAPAN
LATIN AMERICA
METHANE
NATURAL GAS HYDRATE DEPOSITS
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OFFSHORE SITES
ORGANIC COMPOUNDS
PACIFIC OCEAN
PROGRESS REPORT
RESOURCE POTENTIAL
SEAS
SEDIMENTARY BASINS
SEDIMENTS
SEISMIC WAVES
SOLUBILITY
SOUTH AMERICA
STABILITY
SURFACE WATERS
USA