The prediction of salted zones of Botuobinskiy formation sandstone on the example of Chayandinskoye field (East Siberia)
https://doi.org/10.24887/2587-7399-2019-3-35-40
Abstract
Chayandinskoye field is the unique field of East Siberia that contains large amount of natural gas, when oil rim places not wide area. The main oil reserves are concentrated on Botuobinskiy formation of Vendian terrigenous complex. The specificity of Botuobinskiy formation is the presence of salt on sandstone pore space, which is the cause of net pay thickness decrease that can reduce oil reserves down to 10 per cent. Moreover, salted layers lead to sandstone compartmentalization that has an effect on reserves recovery. It is necessary to predict salted zones location for reduction of reserves disconfirmation, choice of optimal oil recovery system and reliable decision for future investment. In this article the hypotheses of salinization are considered and way that allows salted zone prediction is suggested.
About the Authors
Sh. A. Nigamatov
Gazpromneft NTC LLC
Russian Federation
Russian Federation
Saint-Petersburg
L. R. Ismagilova
Gazpromneft NTC LLC
Russian Federation
Russian Federation
Saint-Petersburg
A. N. Boschenko
Gazpromneft-Zapolyarie LLC
Russian Federation
Russian Federation
Tyumen
References
1. Burova I.A., The paleogeographycal reconstruction of Vendian-Lower Cambrian carbonate rocks at the west slope of the north part of Nepsko-Botuobinskaya anteclise (In Russ.), Neftegazovaya geologiya. Teoriya i praktika, 2014, no. 4, URL: http://www.ngtp.ru/rub/4/42_2014.pdf
2. Kryuchkov V.E., Medvedev A.G., Izvekov I.B., Litologo-fatsial’nye i geodinamicheskie usloviya formirovaniya vendskikh otlozheniy Chayandinskogo mestorozhdeniya (In Russ.), Vesti gazovoy nauki, 2012, no. 1(9), pp. 194-201.
3. Kal’vin I.A., Moiseev V.A., Butorov V.V., Salt crystallization conditions in the pore space of the reservoirs of the Nepa arch (In Russ.), Geologiya nefti i gaza, 1990, no 6, рр. 23-25.
4. Ryzhov A.E., Perunova T.A., Orlov D.M., The structure of pore space at botuobinskiy formation reservoir of Chayandinskoe field (In Russ.), Vesti gazovoy nauki, 2011, no. 1(6), pp. 162-174.
5. Vorob’ev V.S., Klinovaya Ya.S., Causes of salinization of terrigenous rock within the Verkhnechonskoe field (Eastern Siberia) (In Russ.), Gazovaya promyshlennost’, 2017, no. 4, pp. 36 – 42.
Review
For citations:
Nigamatov Sh.A., Ismagilova L.R., Boschenko A.N. The prediction of salted zones of Botuobinskiy formation sandstone on the example of Chayandinskoye field (East Siberia). PROneft. Professionally about Oil. 2019;(3):35-40. (In Russ.) https://doi.org/10.24887/2587-7399-2019-3-35-40
Views:
192
Email this article 