Controversial Issues of Hydrocarbon Field Formation and the Role of Geomagnetic Fields
Table 1
Peculiarities of oil and gas formation (by Yu.I.Pikovsky, supplemented by the authors) [15].
Oil and gas accumulation features
Does the phenomenon, without further assumptions, follow from the concept of oil and gas formation?
Biogenic theory
Abiogenic theory
1
Bound to sedimentary basins
Yes
No
2
The presence in the rocks of oil and gas-bearing areas of dispersed oil similar in composition to the oil in the accumulations
Yes
Yes
3
Secondary accumulation of oil and gas in natural reservoirs
Yes
Yes
4
The possibility of significant hydrocarbon accumulation throughout the sedimentary basin, including the crystalline basement, irrespective of the lithological composition of the rocks and their organic matter content and type
No
Yes
5
Uneven oil and gas accumulation. A high density of giant and supergiant oil and gas deposits in relatively small separate areas
No
Yes
6
Abnormally high pressures in hydrocarbon accumulations
No
Yes
7
A relatively narrow range of geological time, close to modern times, over which all world’s significant deposits have formed
No
Yes
8
Linking oil and gas deposits to recent crustal movements, the continuation of oil and gas accumulation at present
No
Yes
9
Oil and gas accumulations confined to major deep-lying activated faults
No
Yes
10
Recoverability of exploitable hydrocarbon reserves
