Open AccessScreening of waterflooding, hot waterflooding and steam injection for extra heavy crude oil production from Tatarstan oilfield
Author(s) -
Anastasia Pituganova,
Ilgiz F. Minkhanov,
Alexander V. Bolotov,
Mikhail A. Varfolomeev
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/931/1/012002
Subject(s) - steam injection , petroleum engineering , residual oil , water injection (oil production) , environmental science , waste management , oil production , produced water , crude oil , filtration (mathematics) , pulp and paper industry , geology , engineering , statistics , mathematics
Thermal enhanced oil recovery techniques, especially steam injection, are the most successful techniques for extra heavy crude oil reservoirs. Steam injection and its variations are based on the decrease in oil viscosity with increasing temperature. The main objective of this study is the development of advanced methods for the production of extra heavy crude oil in the oilfield of the Republic of Tatarstan. The filtration experiment was carried out on a bulk model of non-extracted core under reservoir conditions. The experiment involves the injection of slugs of fresh water, hot water and steam. At the stage of water injection, no oil production was observed while during steam injection recovery factor (RF) achieved 13.4 % indicating that fraction of immobile oil and non-vaporizing residual components is high and needed to be recovered by steam assisted EORs.