SERBIAN OIL, GAS FIELDS Fig. 1
Novi Sad Danube
Serbia is assessing its potential for long-term carbon dioxide
storage using depleted or partially depleted oil and gas reservoirs in Pannonian basin to help mitigate climate change.
Laboratory tests show some oil fields likely could benefit from CO2 enhanced oil recovery (EOR) although more
research and pilot tests are needed. Depleted or partially
depleted natural gas fields having reservoirs at least 800 m
deep offer promising CO2 storage options.
EOR is one form of carbon capture and storage (CCS).
Most of northern Serbia’s oil and gas fields are in Pannonian
basin. Serbia’s portion of the basin spans 26,000 sq km and
hosts more than 300 reservoirs, including 80 discovered oil
and gas fields.
Some 400 exploration wells and 1,400 appraisal wells
have been drilled. Currently, 53 oil and gas fields are in pro-
duction with about 1,000 wells total. 1
Fig. 1 shows Serbia’s oil and gas fields, most of which are
in their final production phases with a high water cut. They
are CO2 EOR candidates but the depleted oil reservoirs are
shallow, making them less attractive candidates than the gas
Deep saline aquifers have uncertainties, including geothermal gradients and methane-rich water, that could curb
their potential as CO2 storage candidates. More research is
Rusanda oil field
Rusanda oil field is Serbia’s first CO2 EOR project. NIS Co. invested more than € 30 million ($34.8
million) in its High-Pressure Acid-gas Capture Technology (HiPACT)
amine plant, which removes CO2
from natural gas. Gazprom Neft
owns 56% interest in NIS and Serbia
30%, the remaining interest divided
between other minor shareholders.
HiPACT, built in Elemir, removes
CO2 for injection in the gas cap of
Rusanda field to increase reservoir
pressure and the recovery factor.
The plant currently injects 120,000
cu m/d of CO2 compared with about
80,000 cu m/day when it started in
Pannonian basin falls within
Hungary, Croatia, Romania, and Serbia. It has a history of sedimentation,
volcanism, tectonic activity, and geothermal reservoirs. Serbia hosts 113
geothermal wells in its portion of
Pannonian basin. These geothermal
wells, drilled during exploration,
Serbia evaluates its CO2 storage potential
STC NIS Gazprom Neft
Novi Sad, Serbia
University of Belgrade