Correlation, alteration, and origin of hydrocarbons in the GCA, Bahar, and Gum Adasi fields, western South Caspian Basin: geochemical and multivariate statistical assessments

Gürgey, Kadir

doi:10.1016/j.marpetgeo.2003.10.002

Cited by 47 publications

(26 citation statements)

References 43 publications

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“…7) shows additional information on the organic matter type and depositional environment of the analyzed samples (Connan and Nassau, 1980;Peters et al, 1999;Gürgey, 2003). The diagram indicates the marine, terrigenous and mixed organic matter contribution to the N-1 Tertiary core sediments, supporting the interpretation of the suboxic to oxic redox conditions during sedimentation.…”

Section: Organic Matter Type and Depositional Environmentmentioning

confidence: 79%

Potential petroleum source rocks in a tertiary sequence of the Eastern Venezuelan Basin

Quintero¹,

Monaco²,

López³

et al. 2012

Journal of South American Earth Sciences

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Section: Organic Matter Type and Depositional Environmentmentioning

confidence: 79%

Potential petroleum source rocks in a tertiary sequence of the Eastern Venezuelan Basin

Quintero¹,

Monaco²,

López³

et al. 2012

Journal of South American Earth Sciences

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“…Estimation of the thermal history of the SCB (based on vitrinite reflectance) has been evaluated (Wavrek et al, 1996;Abrams and Narimanov, 1997;Inan et al, 1998;Abdullaev et al, 1998;Guliyev et al, 1990;Кatz et al, 2000;Gurgey, 2003). The variation of Ro values vs. depth (Fig.…”

Section: Thermal Conditions and Maturity Of Om/hcsmentioning

confidence: 99%

“…In recent years a number of publications have discussed thoroughly the results obtained (Bailey et al, 1996;Guliyev and Feyzullayev, 1996;Wavrek et al, 1996;Abrams and Narimanov, 1997;Inan et al, 1998;Кatz et al, 2000;Feyzullaev et al, 2001;Gurgey, 2003).…”

Section: Introductionmentioning

confidence: 99%

On the Origin of Hydrocarbons in the Main Lower Pliocene Reservoirs of the South Caspian Basin, Azerbaijan

Feyzullayev

Tagiyev

Lerche

2015

Energy Exploration & Exploitation

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Two opposing points of view concerning the sources of hydrocarbons (HC) in the main reservoirs of the South Caspian Basin (SCB) Productive Series (PSLower Pliocene) reflect syngenetic or epigenetic genesis. Based on recent research results the nature of HCs in the PS is shown to be epigenetic. In the elevated onshore parts of the SCB PS Oligocene-Lower Miocene (Maikop series) rocks play a prevailing role in the formation of oil fields but in the central buried part of the SCB Middle-Upper Miocene rocks (Diatom suite) play a more dominant generation role. Нydrocarbon generation induces overpressure as shown by direct measurements in wells. The formation of HC pools in the PS occurred as a consequence of subvertical migration from underlying OligoceneMiocene deposits, characterized by impulsive injection. Two main phases of oil migration occurred during the development of commercial accumulations in the PS. The distance of subvertical migration of HCs in the SCB is estimated to be about 4 km for oils and 10-11 km for gases.

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“…In the central part of the basin these deposits lie very deep and information about their thermodynamic conditions is not available. However, taking into account that the formations relate to the source rocks (Guliyev and Feyzullayev, 1996;Abrams and Narimanov, 1997;Katz et al, 2000;Gurgey, 2003;Feyzullayev et al, 2001), one expects even more contrast in excess pressures than in the reservoir, reaching and even exceeding lithostatic (geostatic) pressure. Confirmation of this point is the widespread development of diapirism and mud volcanism in the SCB.…”

Section: Organic Matter Maturity and Clay Mineral Transformations In mentioning

confidence: 99%

Organic Matter Maturity and Clay Mineral Transformations in Overpressured Formations: Comparison Histories from Two Zones of the South Caspian Basin

Feyzullayev

Lerche

2011

Energy Exploration & Exploitation

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The role of excess pressures in catagenic processes of the South-Caspian basin (SCB) is investigated. The results allow one to conclude that the SCB (mainly its deep-water part) is characterized by retardation of the transformations from kerogen to oil and of oil to gas, and also by a delay in the transformation of smectite to illite in clay minerals. Periodic intensification of these processes can enhance the development of mud diapirs and mud volcanoes, which act as focal centers for impulsive unloading of hydrocarbon products. The conclusion is that there are increased chances of large hydrocarbon accumulations in the deeply buried overpressured formations.

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Correlation, alteration, and origin of hydrocarbons in the GCA, Bahar, and Gum Adasi fields, western South Caspian Basin: geochemical and multivariate statistical assessments

Cited by 47 publications

References 43 publications

Potential petroleum source rocks in a tertiary sequence of the Eastern Venezuelan Basin

Potential petroleum source rocks in a tertiary sequence of the Eastern Venezuelan Basin

On the Origin of Hydrocarbons in the Main Lower Pliocene Reservoirs of the South Caspian Basin, Azerbaijan

Organic Matter Maturity and Clay Mineral Transformations in Overpressured Formations: Comparison Histories from Two Zones of the South Caspian Basin

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