co plume prediction at the top surface using history ... · masoud ahmadinia 1, seyed shariatipour...
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CO2 PLUME PREDICTION AT THE TOP SURFACE
USING HISTORY MATCHING TECHNIQUE
Masoud Ahmadinia1, Seyed Shariatipour1, Odd Andersen2, Mahdi Sadri1
1 Centre for Fluid and Complex Systems, Coventry University2 SINTEF Digital, Mathematics and Cybernetics
UKCCSRC NETWORK CONFERENCE,
CARDIFF UNIVERSITY, APRIL 2019
ABOUT ME
Education
• Ph.D. Flow Measurement and Fluid Mechanic, Coventry University
• M.Sc. Petroleum Engineering, Polytechnic University of Turin
• M.Sc. Environmental and Land Planning Engineering, Polytechnic University of Milan
• B.Sc. Petroleum Engineering, Shiraz University
Work Experience
• TNO. UTRECHT, NETHERLANDS (Internship)
• SINTEF. OSLO, NORWAY (Research placement)
CO2 PLUME PREDICTION AT THE TOP SURFACE USING HISTORY MATCHING TECHNIQUE | Masoud AhmadiniaUKCCSRC NETWORK CONFERENCE,
CARDIFF UNIVERSITY, APRIL 2019
CENTRE FOR FLUID AND COMPLEX SYSTEMS
• Effects of multi-phase fluid flow on CO2 storage and security
Michael Onoja, 4th year
• Improving oil and gas recovery through optimal flow measurement
Mahdi Sadri, 3rd year
• Numerical and experimental analysis of CO2 leakage through well cements
M. Reza Bagheri, 2nd year
• Developing new techniques to accelerate CO2 dissolution in brine in downhole conditions
Mohsen Abbaszadeh, 2nd year
• Structural trapping mechanisms in CO2 storage capacity and security
Azadeh Pourmalek, 2nd year
CO2 PLUME PREDICTION AT THE TOP SURFACE USING HISTORY MATCHING TECHNIQUE | Masoud AhmadiniaUKCCSRC NETWORK CONFERENCE,
CARDIFF UNIVERSITY, APRIL 2019
HISTORY MATCHING - OBJECTIVES
• Improve and validate the reservoir simulation model
• Better understanding of reservoir processes
• Improve the reservoir description and data acquisition program
• Identify unusual operating conditions
CO2 PLUME PREDICTION AT THE TOP SURFACE USING HISTORY MATCHING TECHNIQUE | Masoud AhmadiniaUKCCSRC NETWORK CONFERENCE,
CARDIFF UNIVERSITY, APRIL 2019
HISTORY MATCHING - METHODS
Manual
• Run simulation for
historical period
• Compare results to
actual field data
• Adjust simulation input
to improve match
• Selection of input data
based on knowledge
and experience
CO2 PLUME PREDICTION AT THE TOP SURFACE USING HISTORY MATCHING TECHNIQUE | Masoud AhmadiniaUKCCSRC NETWORK CONFERENCE,
CARDIFF UNIVERSITY, APRIL 2019
Automatic
• Minimizes the objective
function; i.e., difference
between observed reservoir
performance and simulation
results
HISTORY MATCHING – COMMON PARAMETERS
CO2 PLUME PREDICTION AT THE TOP SURFACE USING HISTORY MATCHING TECHNIQUE | Masoud AhmadiniaUKCCSRC NETWORK CONFERENCE,
CARDIFF UNIVERSITY, APRIL 2019
• Aquifer size
• Vertical permeability barriers
• Flow capacity, kHh
• kV/kH ratio
• Pore volume
• Relative permeability
CO2 PLUME DEVELOPMENT @ SLEIPNER
• World's first industrial-scale GCS project.
• Time-lapse seismic monitoring data are available from 1996 to 2010.
CO2 PLUME PREDICTION AT THE TOP SURFACE USING HISTORY MATCHING TECHNIQUE | Masoud AhmadiniaUKCCSRC NETWORK CONFERENCE,
CARDIFF UNIVERSITY, APRIL 2019
CURRENT STUDY
• The numerical simulation is performed on a synthetic model with a
specific slope and rugosity pattern.
CO2 PLUME PREDICTION AT THE TOP SURFACE USING HISTORY MATCHING TECHNIQUE | Masoud AhmadiniaUKCCSRC NETWORK CONFERENCE,
CARDIFF UNIVERSITY, APRIL 2019
𝑧 𝑥, 𝑦 = A[sin 𝜔1𝑥 + sin ሿ𝜔1𝑦 + 𝑨𝒙 sin 𝜔2𝑥 +𝑨𝒚 sin 𝜔2𝑦 + 𝑥 tan 𝑺𝒙 + 𝑦 tan 𝑺𝒚
CURRENT STUDY
CO2 PLUME PREDICTION AT THE TOP SURFACE USING HISTORY MATCHING TECHNIQUE | Masoud AhmadiniaUKCCSRC NETWORK CONFERENCE,
CARDIFF UNIVERSITY, APRIL 2019
𝑧 𝑥, 𝑦 = A[sin 𝜔1𝑥 + sin ሿ𝜔1𝑦 + 𝑨𝒙 sin 𝜔2𝑥 +𝑨𝒚 sin 𝜔2𝑦 + 𝑥 tan 𝑺𝒙 + 𝑦 tan 𝑺𝒚
Observed Initial guess Calibrated
CURRENT STUDY
• The results of the plume shape is recorded and subsequently
reinterpreted as "observed" data.
• A new synthetic model is generated, without knowledge of the first.
• This model could be regenerated to change rugosity magnitude and
slope directions.
CO2 PLUME PREDICTION AT THE TOP SURFACE USING HISTORY MATCHING TECHNIQUE | Masoud AhmadiniaUKCCSRC NETWORK CONFERENCE,
CARDIFF UNIVERSITY, APRIL 2019
MODEL PARAMETERS
CO2 PLUME PREDICTION AT THE TOP SURFACE USING HISTORY MATCHING TECHNIQUE | Masoud AhmadiniaUKCCSRC NETWORK CONFERENCE,
CARDIFF UNIVERSITY, APRIL 2019
Parameter Value
Reservoir dimensions (NX×NY×NZ) 101×101×4
Reservoir size (km) (LX×LY×LZ) 15×15×0.1
Cell size (m)DX×DY 148.5
DZ 25
Rock compressibility (1/bars) 4.35E-5
Water density (kg/m3) 1000
CO2 density (kg/m3) 745.6
Residual water saturation (Srw) 0.27
Residual CO2 saturation (Src) 0.20
Permeability (mD) 5
Porosity 0.2
Simulation period (years) 1010 (100 × 0.1 years + 100 × 10 years)
Number of time steps 200
Water viscosity (Pascal-second) 8.0E-4
CO2 viscosity at 150 bar (Pascal-second) 6.4E-5
VERTICAL EQUILIBRIUM
CO2 PLUME PREDICTION AT THE TOP SURFACE USING HISTORY MATCHING TECHNIQUE | Masoud AhmadiniaUKCCSRC NETWORK CONFERENCE,
CARDIFF UNIVERSITY, APRIL 2019
• Large disparity in lateral and vertical scales, plus differences in density
between the supercritical CO2 plume and the resident brine vertical fluid
segregation will be almost instantaneous compared with the up-dip
migration.
• The flow of a thin CO2 plume in 3D can be approximated in terms of its
thickness to obtain a 2D simulation model
INITIAL GUESSES & SEARCH RANGE FOR EACH OF THE PARAMETERS
CO2 PLUME PREDICTION AT THE TOP SURFACE USING HISTORY MATCHING TECHNIQUE | Masoud AhmadiniaUKCCSRC NETWORK CONFERENCE,
CARDIFF UNIVERSITY, APRIL 2019
Ax
(meter)
Ay
(meter)
Sx
(meter)
Sy
(meter)
Limits for scenario a 0-10 0-10 0-5 0-5
Limits for scenario b 0-20 0-20 0-10 0-10
Observed 9 7 2 3
Case# of
iterations
Initial guess
Ax
(meter)
Ay
(meter)
Sx
(meter)
Sy
(meter)
1a 12
0 0 0 0b 17
2a 6
5 5 1 2b 11
3a 7
15 12 0 0b 14
4a 8
15 12 6 7b 7
5a 9
20 20 10 10b 9
• Simulations are performed on the
new synthetic model, and coupled
with a nonlinear optimization
routine, where the investigated
parameters (slope, rugosity
magnitude) are varied, with a view
to match the original "observed"
data.
OPTIMIZED VALUES FOR ALL THE CASES
CO2 PLUME PREDICTION AT THE TOP SURFACE USING HISTORY MATCHING TECHNIQUE | Masoud AhmadiniaUKCCSRC NETWORK CONFERENCE,
CARDIFF UNIVERSITY, APRIL 2019
case 1a 1b 2a 2b 3a 3b 4a 4b 5a 5b
Error (%) 16.41 1.01 1.37 1.78 5.33 1.81 0.49 0.45 0.54 0.36
RESULTS & CONCLUSION
• The results were able to reproduce the impact of caprock
topography on the plume evolution.
• Uncertainties in caprock slope and rugosity may impact the
simulation outcome.
• Setting tighter bounds for the parameter ranges did not result
in a better match, which can be explained by the presence of
local optima.
CO2 PLUME PREDICTION AT THE TOP SURFACE USING HISTORY MATCHING TECHNIQUE | Masoud AhmadiniaUKCCSRC NETWORK CONFERENCE,
CARDIFF UNIVERSITY, APRIL 2019
16
Thank You
UKCCSRC NETWORK CONFERENCE,
CARDIFF UNIVERSITY, APRIL 2019