Происхождение нефти газа: от теории происхождения к технологиям поисков > Теоретические вопросы происхождения нефти
Нефть неорганическая VS органическая, аргументы за и против
Терещук Евгений Валериевич:
Недавно просматривал различные публикации по поводу происхождения нефти. В хронологическом порядке отслеживается постепенное принятие доводов абиогенной гипотезы. Но вот эту часть не могу не скинуть:
'Kutcherov (2008) claims that there are a number of geological data, such as the giant and
super-giant petroleum deposits, can’t be satisfactory explained in the established biogenic
petroleum theory. Based on a hydrocarbon habitat estimate from Ayres et al. (1982), Kutcherov
(2008) reaches the conclusion that only 6% of the Saudi in-place reserves could have originated
from a migration from the petroleum source rock. Barker and Dickey (1984) suggested that there
were more source rocks than only the one of Callovian-Oxfordian age used by Ayres et al.
(1982). However, both those studies were based on obsolete practices for estimating the amount
of oil generated by a source rock. The introduction of Rock-Eval methodology and new studies,
such as Demaison and Huizinga (1991) or Laherrere et al. (1994) arrived as significantly higher
estimates. The source rocks in the petroleum system have generated more than 70 times the
known in place reserves of Saudi-Arabia, with very large amounts dispersed in the sediments
compared to the recoverable resources. In other words, no abiotic oil is needed to explain the in-
place discoveries in Saudi-Arabia if recent and updated geological studies are acknowledged.
Indeed, it is surprising to see Kutcherov (2008) refer to an old paper from 1982, when there are
many more recent papers.
A second argument presented by Kutcherov (2008) and other proponents of abiotic
petroleum origin is the occurrence of petroleum deposits at great depths. A number of oil
discoveries have been made at depths of 5000 to 10 000 m, but the vast majority has been
located been located less deep. The world inventory of oilfields, excluding USA and Canada, is about 14 000 fields with total reserves of 2000 billion barrels. Only less than 500 of them are
located deeper than 5000 m. It is clear from the empirical discovery data that less oil
has been found in deep horizons. This is also as expected from the studies on temperature and its
importance for oil occurrence.
Tissot et al (1987) found that temperature is the most sensitive parameter in hydrocarbon
generation. About 90% of the world’s oil and gas are found between the 60° C and 120° C
isoterms, i.e. the golden zone, a clear trends show decreasing reserves with increasing reservoir
temperature (Statoil, 2005). The maximum temperature where oil can be found is also an
important topic. The geochemical approach of the 1980s were based on vitrinite reflectance and
found that around 200° C was the maximum temperature for oil to be preserved and not
transformed into gas. Isaksen (2004), Hao et al (2008), Mankiewicz et al (2009) all showed how
oil was cracked into natural gas at temperatures greater than 200° C, which typically occurred at
depths greater than 5000 m. However, there are also recent claims that oil can be stable up to
temperatures of 240°-260° C (Domine et al., 2002), which can explain occurrence of oil at more
extreme places than previously thought possible.
Scientific support can be found for both the biogenic and abiotic theory of petroleum
formation. However, theoretical studies, laboratory verification and discoveries of trace amounts
of abiotic oil do not imply the existence of commercially significant deposits. The observations
and actual discoveries made by geological studies must be integrated in any sound theory of petroleum formation. One cannot chose to disregard certain ―inconvenient‖ details or fail to
integrate new results in a theory'.
Терещук Евгений Валериевич:
Ахмет Иссакович, а почему Кучеров не в почёте на данном форуме?
Тимурзиев Ахмет Иссакович:
--- Цитата: Терещук Евгений Валериевич от Марта 20, 2021, 06:00:44 am ---Ахмет Иссакович, а почему Кучеров не в почёте на данном форуме?
--- Конец цитаты ---
Позвоните мне, я Вам расскажу.
http://deepoil.ru/index.php/bazaznaniy/item/78-vladilen-a-krayushkin-and-vladimir-g-kutcherov - это работа Краюшкина, можете найти такую же работу без истинного автора от Кучерова.
Терещук Евгений Валериевич:
А Томас Голд тоже плагиатом занимался или у него есть что-то достойное?
Тимурзиев Ахмет Иссакович:
--- Цитата: Терещук Евгений Валериевич от Апреля 07, 2021, 08:03:46 am ---А Томас Голд тоже плагиатом занимался или у него есть что-то достойное?
--- Конец цитаты ---
Thomas Gold - Plagiarism!
Letters from various scientists complaining of plagiarism by Thomas Gold, and from Russian scientists rejecting paper(s) by Gold for reasons of lack of originality and failure of attribution.
Здесь об этом подробно: http://deepoil.ru/index.php/bazaznaniy/item/130-thomas-golds-plagiarism
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