Published June - July 2022, Pg. 17-23

Section: Geology and geophysics

UOT: 519.6:001.891.57

DOI: 10.37474/0365-8554/2022-6-7-17-23

The role of mud volcanism in prediction of oil-gas bearing content in deep layers of Meso-Cenozoic sediment complex of South Caspian megabasin

G.N. Gahramanov Cand. in Geol.-Min.Sc. - “Balakhanioil” Operating Company

F.N. Kerimov - Institute for Oil and Gas

While conducting exploration surveys for new hydrocarbon fields in oil-gas bearing basins of the world, the data on the mud volcanoes in the area and their explosion is widely used.

As the stage of initial activity of mud volcanoes, the source of generation, the product of explosion etc. are associated with the deep layers (7–8 km) of the Earth, this process is an essential source of information for exploration surveys.

One of the original aspects of the South Caspian basin is the great amount of mud volcanoes.

The study of the composition of gas masses released into the atmosphere as a result of explosion of mud volcanoes enables to make objective forecast on the gas generation zones on the deposition cover of the area and the oil-gas bearing potential as well. By the distribution areal the mud volcanoes predominantly cover oil-gas bearing zones. Thus, there are mud volcanoes on sixty basins from existing 252 oil-gas bearing zones in sedimentation basin of the Earth.

Although the generation source of a great deal of mud volcanoes in Azerbaijan is principally associated with Paleogen-Neogen sedimentation complexes, a specific part of volcanic gases is supposed to belong to the Cretaceous-Jurassic sedimentation complexes (8−10 km), which increases the probability of existence of formation sources for hydrocarbon in these complexes.

References:

1. Aliyev Ad.A., Guliyev I.S., Dadashov F.H., Rahmanov R.R. Dunyanin palchig vulkanlarinin atlasi. – Baki: “Nafta-Press”, 2015, 303 s.

2. Guliyev I.S., Feizullayev A.A. Zonalnost´ UV-obrazovaniya i resursy nefti i gaza v UKV // Azerbaidzhanskoe neftyanoe khozaistvo, 1996, No 4, s. 6-8.

3. Guliyev I.S., Aliyeva E.G., Guseynov D.A. Glubinnye ochagi uglevodorodoobrazvaniya v Yuzhno-Kaspiyskom neftegazovom basseine // Trudy Instituta NANA, 2003, No 29.

4. Guliyev I.S., Kerimov V.Yu. Osipov A.V., Mustayev R.N. Generatsiya i akkumulyatsiya uglevodorodov v usloviyakh bol´shikh glubin // SOCAR Proceedings, 2017, No 1, s. 4-16.

5. Mustayev R.N. Usloviya formirovaniya i prognoz neftegazonosnosti zapadnogo borta Yuzhno-Kaspiyskoy vpadiny. disk. na soisk. uch. st. kand. geol. - min. nauk. Moskva, 2013 g.

6. Narimanov N.R., Kagramanov K.N., Babayev M.S. i dr. Analiz vulkanicheskogo soderzhaniya gazov gryazevykh vulkanov Bakinskogo arkhipelaga v svyazi s perspektivami neftegazonosnosti. “Vestnik” Kiyevskogo natsional´nogo universiteta im. T. Shevchenko // Geologiya, 2019, No 4 (87), s. 55-62. http://doi.org/10.17721/1728-2713.87.08

7. Narimanov N.R. Jenubi Khezer hovzesinin geodinamik rezhiminin Baki arkhipelagi ve Ashaghi Kur chokekliyinin lokal galkhimlarinin geolozhi inkishaf khususiyyetlerine ve neft-gazlilighina tesiri / N.R. Narimanov, G.N. Gahramanov, M.S. Babayev [ve b.] // Azerbaijan neft teserrufaty, 2019, No 9, s. 7-12.