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Subsea Multiphase Flow Meter For Production Optimalisation14.06.07 by Kenneth Olsvik
INTERPRETATION MODELING SIMULATION WELL & COMPLETION PRODUCTION & PROCESS
Lack of measurements subsea
In 2004 Statoil, Norsk Hydro and NPD looked at difference in hydrocarbon recovery rate in subsea and topside completed wells
Topside : 59%
Subsea: 41% Why a 15-20% difference?
Reassons;
-Accessebillity- low maintenance subsea wells
-Lack of data for reservoir optimization
Statoil’s goal within 2008;
Topside : 70%
Subsea: 55%Roxar Confidential June 2007
INTERPRETATION MODELING SIMULATION WELL & COMPLETION PRODUCTION & PROCESS
OIL
GAS
WATER
SAND
Controlling well behavior
Roxar Confidential June 2007
INTERPRETATION MODELING SIMULATION WELL & COMPLETION PRODUCTION & PROCESS
OIL
GAS
WATER
SAND
Controlling well behavior
Roxar Confidential June 2007
INTERPRETATION MODELING SIMULATION WELL & COMPLETION PRODUCTION & PROCESS
OIL
GAS
WATER
SAND
Choke back
Controlling well behavior
Roxar Confidential June 2007
INTERPRETATION MODELING SIMULATION WELL & COMPLETION PRODUCTION & PROCESS
OIL
GAS
WATER
SAND
Choke back
Controlling well behavior
Roxar Confidential June 2007
INTERPRETATION MODELING SIMULATION WELL & COMPLETION PRODUCTION & PROCESS
Superior reliability
33 yrs
MTTF
96 yrsStationary meter body
MTTFSRC version
Retrievable canister
31 yrsStationary meter body and electronics canister
CBV version
INTERPRETATION MODELING SIMULATION WELL & COMPLETION PRODUCTION & PROCESS
Full redundancy = ”Two meters in one”
Dual flow computerNon-gammaback-up
Redundancy onall transmitters
Dual ROV connectors
Dual power supply
Roxar Confidential June 2007
INTERPRETATION MODELING SIMULATION WELL & COMPLETION PRODUCTION & PROCESS
Replace electronics without stopping production
Roxar Confidential June 2007
INTERPRETATION MODELING SIMULATION WELL & COMPLETION PRODUCTION & PROCESS
Comparison of MPFM SRC version vs Fully RetrievableCost and benefits
SRC version
- Integrated part of the well, no extra valves or connectors
- Light weight, enables integration into jumpers
- No production loss during intervention (1-3hrs change out time of canister), no need for shut in
- Redundancy on all parts, no need to change out radioactive source
- MTTF of stationary part 96 years
Fully retrievable
- At least 3 extra subsea valves required + ROV connector (costapprox. USD 300,000)
- Radioactive source must be replaced within 5-7 years (intervention)
- Intervention cost is high and production loss for 24-48hrs eq USD250,000 – 500,000
- Increased cost/weight/size of manifold (USD millions)
Roxar Confidential June 2007
INTERPRETATION MODELING SIMULATION WELL & COMPLETION PRODUCTION & PROCESS
MPFM CBV – Jumper installed
Roxar Confidential June 2007
INTERPRETATION MODELING SIMULATION WELL & COMPLETION PRODUCTION & PROCESS
MPFM SRC installed in Manifold
INTERPRETATION MODELING SIMULATION WELL & COMPLETION PRODUCTION & PROCESS
K-lab testing (4 tests in 2006)
Roxar Confidential June 2007
INTERPRETATION MODELING SIMULATION WELL & COMPLETION PRODUCTION & PROCESS
m3/day3m3/day2,45Water Changes
abs Vol%< 0,005abs Vol%< 0,01 Water Detection Accuracy
Sm3/day10 000 000Sm3/day4 000 000Gas
Ormen LangeSnøhvit
Water Measurement Accuracy
SNØHVIT
Hammerfest
CMD 3 CO2 INJECTIONLINE 8" ID
TEMPLATE F
PROCESSEQUIPMENTSUBSEA
CONTROLBUILDING
CDU 1
7 945 000 N
CO2
7 942 500 N
7 940 000 N
7 937 500 N
7 935 000 N
7 932 500 N
502
500
E
505
000
E
507
500
E
510
500
E
512
500
E
28" PRODUCTIONFLOWLINE
PHASE 1 SNØHVIT/ALBATROSS
CMD 2
14" INFIELD FLOWLINES
SPARE UMBILICALCONNECTION
TEMPLATE N
MAIN UMBILICAL
TEMPLATE E
TEMPLATE D
CORROSIONMONITORING DEVICE PLEM
MELKØYA
ALBATROSS
UMBILICALTO ASKELADD
TO ASKELADD
2 x 4" ID MEG & SERVICE
8" CO2 INJECTION
MEG TOASKELADD
MEG COUPLERSERVICE COUPLER
CMD 1
BUICS DYNAMIC UMBILICAL
INTERPRETATION MODELING SIMULATION WELL & COMPLETION PRODUCTION & PROCESS
“… the Roxar subsea Wetgas meter (…) reported formation water breakthrough on several wells (…) avoiding catastrophic water break-through and loss of the wells. Because of the Roxar subseaWetgas meters, we saved major costs related to such loss of wells.”
Burullus Rashpetco1100 meters Water Depth
Formation Water Detection
INTERPRETATION MODELING SIMULATION WELL & COMPLETION PRODUCTION & PROCESS
Ormen Lange, North Sea
1100 meters Water Depth
Water Measurement
upstream
INTERPRETATION MODELING SIMULATION WELL & COMPLETION PRODUCTION & PROCESS
Latest subsea projects
Wetgas:Australia (8+6)Statoil NCS (4)Hydro Ormen Lange (6 +)Burullus Egypt (8)Reliance / Aker Kvaerner (19)Rashpetco Egypt (3)
Multiphase:Total Rosa (12)Total Moho (8)Total AKPO (36)ExxonMobil Angola (2)ExxonMobil Angola (10)ExxonMobil Angola (9)Statoil Heidrun (3)Statoil Åsgard (8)Statoil Tordis IOR (3)Woodside Vincent (2)Wollybutt ENI (2)
Roxar Confidential June 2007
INTERPRETATION MODELING SIMULATION WELL & COMPLETION PRODUCTION & PROCESS
Clients of Roxar (subsea multiphase/wetgas meters)
77Petrobras
601473342Others
16142Woodside
59133592Total/Elf
22BP
8323Shell
13310Anadarko
1919Reliance
7846413447Statoil
56
2005
64
9
2006
83
12
2007
28519854All
232ExxonMobil
All200420031995
- 2002Client
Roxar Confidential June 2007