книги / Геология нефти и газа

Fig. 17

Fig. 18

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Fig. 19

Fig. 20

92

Fig. 21

Fig. 22

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Fig. 23

Fig. 24

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Fig. 25

OIL AND GAS POOL COLLAPSE AND REDISTRIBUTION

Collapse and redistribution of oil and gas accumulations is practically caused by the same processes that cause forming of oil and gas accumulations.

The main processes include tectonic, physical, chemical, biochemical, hydrodynamic, hydrologic and hydraulic processes.

The tectonic factor manifests itself in differential adjustment movement that promote to trap opening, trap collapsing due to disjunctive dislocating, complicating field structure due to appearing salt and clay diapirism, introducing igneous intrusions and so on.

During rising tectonic movements, when pools are taken out from depth, the pools that are occurring near the surface can be erosion damaged. Nature and extent of such manifestation of tectonic factor depends on tectonic setting of fields.

Extent of manifestation of chemical and biochemical factors is determined by temperature and pressure changing, which, to a great extent, depends on the depth of pool occurrence. In a number of cases, the reason of pool collapse is hydraulic factor (washing out of oil and gas by underground water).

Collapse of oil and gas traps results in various shows of oil, gas and pitch mineral, and sulfur deposits.

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CONCLUSION

Integral study of geological and geochemical aspects of petroleum geology at the present-day science development level should be the basis for the future researches. For studying actual problems of petroleum geology, great emphasis should be laid on natural process modeling that should be maximally closed to the natural conditions, as well on applying the advanced geochemical methods considering developments and gains of the related branches aimed at developing direct methods of hydrocarbon accumulations.

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Учебное издание

М.Э. Мерсон, А.С. Флаасс, О.Е. Кочнева

M.E. Merson, A.S. Flaass, O.E. Kochneva

ГЕОЛОГИЯ НЕФТИ И ГАЗАЗА

OIL AND GAS GEOLOGY

Учебное пособие

2-е издание, стереотипное

Подписано в печать 18.10.2021. Тираж 53 экз. Усл. печ. л. 12,74. Формат 60×90/16. Заказ № 221/2021.

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