Identification of novel bicyclic alkanes from steroid precursors in crude oils from Kelamayi oil field of China
Journal Article
·
· Geochim. Cosmochim. Acta; (United States)
A novel series of bicyclic alkanes in the C/sub 19/-C/sub 22/ range has been discovered in a number of crude oils from a variety of sources. Evidence is provided from laboratory studies to demonstrate that there is a correlation between these bicyclic alkanes and steranes, suggesting in turn that both series of compounds are actually derived from sterol precursors. These bicyclic alkanes appear to be resistant to the effects of biodegradation which in turn enhances their concentration in biodegraded oils following removal of other less resistant compounds. The value of this stability is demonstrated in the correlation of an oil and seep from the Anadarko Basin. The seep is biodegraded such that all regular steranes are removed leaving only rearranged steranes compared with an oil where all steranes are intact. The bicyclic alkane distributions are similar for both samples demonstrating their potential for correlation purposes. The effect of maturation on these components was not evaluated in detail in this particular study.
- Research Organization:
- Univ. of Oklahoma, Norman (USA)
- DOE Contract Number:
- FG05-85ER13412
- OSTI ID:
- 5202111
- Journal Information:
- Geochim. Cosmochim. Acta; (United States), Journal Name: Geochim. Cosmochim. Acta; (United States) Vol. 52:2; ISSN GCACA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Origin and significance of drimanes and related bicyclic alkanes in crude oils and ancient sediments
Geochemical study of oils, source rocks, and tar sands in Pauls Valley area, Anadarko basin, Oklahoma
Biodegradation of Kuwait crude oil in the presence and absence of the dispersant Corexit
Conference
·
Tue Feb 28 23:00:00 EST 1989
· American Chemical Society, Division of Petroleum Chemistry, Preprints; (USA)
·
OSTI ID:6894905
Geochemical study of oils, source rocks, and tar sands in Pauls Valley area, Anadarko basin, Oklahoma
Conference
·
Fri May 01 00:00:00 EDT 1987
· AAPG (Am. Assoc. Pet. Geol.) Bull.; (United States)
·
OSTI ID:6186928
Biodegradation of Kuwait crude oil in the presence and absence of the dispersant Corexit
Thesis/Dissertation
·
Tue Dec 31 23:00:00 EST 1985
·
OSTI ID:7004549
Related Subjects
02 PETROLEUM
023000* -- Petroleum-- Properties & Composition
58 GEOSCIENCES
580400 -- Geochemistry-- (-1989)
ALKANES
ASIA
CHEMICAL ANALYSIS
CHINA
CORRELATIONS
ENERGY SOURCES
FOSSIL FUELS
FUELS
GEOLOGIC DEPOSITS
HYDROCARBONS
HYDROXY COMPOUNDS
MATURATION
MINERAL RESOURCES
OIL FIELDS
ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM DEPOSITS
RESOURCES
STEROIDS
STEROLS
STRUCTURAL CHEMICAL ANALYSIS
023000* -- Petroleum-- Properties & Composition
58 GEOSCIENCES
580400 -- Geochemistry-- (-1989)
ALKANES
ASIA
CHEMICAL ANALYSIS
CHINA
CORRELATIONS
ENERGY SOURCES
FOSSIL FUELS
FUELS
GEOLOGIC DEPOSITS
HYDROCARBONS
HYDROXY COMPOUNDS
MATURATION
MINERAL RESOURCES
OIL FIELDS
ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM DEPOSITS
RESOURCES
STEROIDS
STEROLS
STRUCTURAL CHEMICAL ANALYSIS