Transcript Slide 1

Announcement
work shop:
CO2 for EOR
CO2 seen from the underground
Stavanger 30th of October 2007
Recovery Processes
CO2 seen from the underground
Registration:
[email protected]
Deadline:
Friday 26th of October 2007
Venue:
NPD, Stavanger
Professor Olav Hanssensvei 10
4021 Stavanger
Force RP contact person: Benedicte Kvalheim
[email protected] before 1.10.07
[email protected] after 1.10.07
CO2 seen from the underground
Programme:
9:00
Welcome and motivation for the seminar (15 min) – Benedicte Kvalheim,
StatoilHydro
EOS - lab exp. for fluid characterisation (30 min) – Tao Yang,
StatoilHydro
Critical parameters of CO2 EOR process (30 min) –Leonid Surguchev IRIS
10:15 – 10:45 Break
10:45
CO2 injection strategy (30 min) - Erwin Dufour, Shell Norge unconfirmed
Compositional reservoir simulation of CO2 injection (30 min) – Øivind
Fevang, Eon Ruhrgas and/or Vidar Haugse, Statoil
Simulation tools (20 min) – Vidar Haugse, Statoil
Discussion (10 min)
12:20 lunch – 13:00 (OD)
CO2 seen from the underground
Programme continue:
13:00 – 14:00
CO2 challenges in chalk (30 min) –Ingebret Fjelde, IRIS/Corec, Merete
Madland, UiS
CO2 injection challenges (30 min) – Maria Bario SINTEF Energi
14:00 – 14:30 Break
14:30 – 16:00
Draugen CO2 project(30 min) – Shell (unconfirmed)
Heidrun CO2 project (30 min) – Jan Åge Stensen/Vidar Haugse, Statoil
Discussion (20 min)
wrap-up - (10 min) Sigve Haaland, Statoil
16:15 Bus transport from NPD to Røde Sjøhus
16:30 Dinner at Røde Sjøhus
CO2 seen from the underground
Abstracts:
Title:
Authors:
Critical parameters of CO2 IOR processes.
In this presentation we will discuss our experimental and compositional results
from different CO2 IOR studies for sand stone and carbonate reservoirs,
importance of compositional, viscous and diffusion effects, aspect of CO2 IOR
process design and critical factors for successful field implementation of CO2
injection.
Leonid Surguchev, Roman
Berenblyum, Lars Kolbotn, IRIS
Compositional reservoir simulation of CO2 injection - what's important
and why.
The main purpose of the presentation is to discuss what is important and why in
connection with compositional simulation of CO2 injection in an oil reservoir. The
presentation will discuss e.g. Miscible and immiscible CO2 injection, importance of
PVT and relative permeability effects, Grid size vs. number of fluid components,
injection of pure CO2 vs. CO2 rich gas (injection of produced gas).
Øivind Fevang, E.ON Ruhrgas,
Vidar Haugse, StatoilHydro
CO2 injection challenges
Understanding the complexity of multi-component two-phase flow of CO2 in
pipelines.
The challenges within reliable simulations of transient two-phase flow of CO2 can
be related to three areas:
1)Thermodynamic properties of mixtures having CO2 as the main component
2)Multi-phase flow modellig (horizontal and vertical) valid for CO2 pipeline
transport and injection
3) Robust numerical methods able to handle transient phenomena, complex
thermodynamics and complex flow regimes
Maria Bario, Sintef Energi
CO2 seen from the underground
Title:
Authors:
An accurate EOS fluid characterization is essential for CO2 miscible displacement,
which is a composition-sensitive process. The presentation starts from special gas
injection PVT experiments, which form the base for any further EOS modeling. We
summarize the technical challenges and solutions associated with modeling CO2
injection. The importance of a reliable EOS fluid characterization will be
demonstrated through simulation examples. Finally, optimization of injection gases
will be discussed.
Tao Yang, StatoilHydro
CO2 challenges in chalk
Series of mechanical tests have been conducted by use of standard triaxial cells
and the mechanical properties of chalk were compared with -and without CO2(aq)
present in the injected water. Experimental results show that the so-called waterweakening effect is enhanced due to increased dissolution of chalk in the presence
of CO2(aq). Mechanical strength of high porosity chalk is thus affected by using
carbonate water as IOR fluid.
Ingebret Fjelde, IRIS/Corec,
Merete Madland
Heidrun CO2 study:
A CO2 value chain based on a potential CO2 source from a gas power plant at
Tjeldbergodden, and with a CO2 transport line to the Halten area, and with CO2
injection for EOR into Draugen and Heidrun has been studied. A short background
for this consortium project will be given. Results from the reservoir studies of CO2
WAG injection on Heidrun will be presented, and some of the important challenges
with such a field implementation will be discussed.
Jan Åge Stensen/ Vidar Haugse
StatoilHydro