Generation and migration of hydrocarbons in the Maracaibo basin, Venezuela: An integrated basin study

Talukdar, Suhas C.; Gallango, O.; Chin-A-Lien, Marcel

doi:10.1016/0146-6380(86)90028-8

Cited by 70 publications

(50 citation statements)

References 4 publications

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“…The generation of Barbados oil from a Tertiary source would limit petroleum source-rock potential to the Barbados accretionary prism. The Upper Cretaceous La Luna Formation and equivalent stratigraphic units, such as the Naparima Hill, Querqual, and Napo Formations, are considered the main petroleum source rocks for basins in Colombia, Venezuela and Trinidad (Zumberge, 1984;Talukdar et al, 1986;Requejo et al, 1994;Rangel et al, 1996;. The sterane biomarker data and correlation of Barbados oils with Cretaceous-sourced oils in eastern Venezuela and Trinidad indicates the presence of Cretaceous source rocks on the Atlantic plate, a confirmation of the important conclusion reached by Lawrence et al (2002), Burggraf et al (2002) and Leahy et al (2004).…”

Section: Eastern Caribbean Cretaceous Source Rock Distributionmentioning

confidence: 99%

Petroleum geochemistry of oil and gas from Barbados: Implications for distribution of Cretaceous source rocks and regional petroleum prospectivity

Hill

Schenk

2005

Marine and Petroleum Geology

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Section: Eastern Caribbean Cretaceous Source Rock Distributionmentioning

confidence: 99%

Petroleum geochemistry of oil and gas from Barbados: Implications for distribution of Cretaceous source rocks and regional petroleum prospectivity

Hill

Schenk

2005

Marine and Petroleum Geology

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“…Samples of La Luna from the vicinity of the ALP-6 core are thermally mature with regard to petroleum formation but generally do not exceed the oil window (Bockmulen et al, 1983;Talukdar et al, 1986;Gallango and Cassani, 1992).…”

mentioning

confidence: 98%

Factors influencing organic carbon and trace metal accumulation in the Upper Cretaceous La Luna Formation of the western Maracaibo Basin, Venezuela

Davis¹,

Pratt²,

Sliter³

et al. 1999

Evolution of the Cretaceous Ocean-Climate System

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Concentrations of organic carbon and selected major and trace elements are presented stratigraphically for a 100-m cored section of Cenomanian through Santonian calcareous black shales from the Maracaibo Basin, western Venezuela. Significant geochemical variation within these laminated, organic-rich marls suggests a five-part stratigraphic subdivision for the La Luna Formation in the Alpuf-6 (ALP-6) core recovered by Maraven, South America. Geochemical variation is interpreted to reflect the combined influences of relative sea level change, episodic volcanism, variations in the intensity of upwelling, and subtle geochemical alteration. High concentrations of organic carbon and trace metals in La Luna strata are inferred to result from (1) moderately high accumulation rates of organic matter resulting from pulsed high primary productivity, (2) recurrent episodes of widespread oxygen depletion that enhanced accumulation of both organic carbon and trace metals in localized areas, and (3) reduced terrigenous dilution of marine organic carbon and trace metals caused by high sea level and low rates of bulk sedimentation in pelagic settings.A refined biostratigraphic framework for the ALP-6 core allows calculation of accumulation rates for early-middle Turonian, late Turonian, Coniacian, and Santonian time intervals. Calculated accumulation rates of organic carbon and trace metals are highest during the late Turonian, when bulk sedimentation is highest. Concentrations of organic carbon are highest during the Coniacian, when bulk sedimentation rates are lowest. Calculated organic carbon accumulation rates for the La Luna in ALP-6 range from approximately 100 to 400 mg/cm 3 /k.y., similar to rates estimated for mid-Cretaceous strata from a number of other sites but approximately an order of magnitude lower than rates measured beneath modern upwelling zones. Relative to organic carbon and bulk sediment accumulation rates, the calculated accumulation rates of selected metals in La Luna strata are unusually high when compared with rates of metal accumulation in many modern Davis, C., Pratt, L.

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“…Generally, geologists take precedence of the parameters that are less influenced by the maturity, migration effort and biodegradation (Serferm & Moldowan, 1978;Moldowan et al, 1985;Talukdar et al, 1986Talukdar et al, , 1988Sofer, 1988;Nie et al, 2001). Research has shown that there were mainly two sets of source rocks in the Fukang Depression, including the Middle-Lower Jurassic and Middle-Permian source rocks (Ding et al, 1996;Chen et al, 2003;Yang et al, 2005;Fu et al, 2011;Pang et al, 2011).…”

Section: Oil-source Correlation and Oil-oil Correlationmentioning

confidence: 99%

Lateral Migration of Petroleum in the Jurassic Toutunhe Formation in the Fudong Slope, Junggar Basin, China

et al. 2014

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New oil reservoirs have been discovered recently in the Jurassic Toutunhe Formation in the Fudong slope, Junggar basin in China. The process and mechanism of lateral petroleum migration in the Jurassic System in the Fudong slope was investigated based on the geological analysis of the strata, porosity and permeability of the reservoir rocks and geochemistry on oil-source correlation and oil-oil correlation. The results indicate that hydrocarbons of the Toutunhe Formation were primarily derived from the Middle-Lower Jurassic and Middle Permian source rocks of the western Fukang Depression and migrated along the axis from west to east. The thickness, sand/strata ratio, porosity and permeability of the Toutunhe 2 member are all better than that of the Toutunhe 1 member, making it the main carrier bed of the hydrocarbons lateral migration.

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Generation and migration of hydrocarbons in the Maracaibo basin, Venezuela: An integrated basin study

Cited by 70 publications

References 4 publications

Petroleum geochemistry of oil and gas from Barbados: Implications for distribution of Cretaceous source rocks and regional petroleum prospectivity

Petroleum geochemistry of oil and gas from Barbados: Implications for distribution of Cretaceous source rocks and regional petroleum prospectivity

Factors influencing organic carbon and trace metal accumulation in the Upper Cretaceous La Luna Formation of the western Maracaibo Basin, Venezuela

Lateral Migration of Petroleum in the Jurassic Toutunhe Formation in the Fudong Slope, Junggar Basin, China

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