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Schilling Robotics
API 53 and Beyond – Flexibility of Fluid Movement
3/4/2015
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Industry Environment
Oil Price 1 year 2104/5
$140
$120
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$40
Please, Lord, give us just one more oil
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it all away!
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API Std 53 7.3.20.1 ROV Intervention
3/4/2015
•
BOP stack shall be equipped with ROV
intervention equipment that at a minimum
allows the operation of critical functions (each
shear ram, one pipe ram, ram locks, and
unlatching of the LMRP connector)
•
Hydraulic fluid can be supplied by the ROV, stack
mounted accumulators (which may be a shared
system), or an external power source that shall
be maintained at the well site. The source of
hydraulic fluid shall have necessary pressure and
flow rate to operate these functions.
•
All critical functions shall meet the closing time
requirements in 7.3.10.4
3
•
Close each ram BOP in 45 seconds or less
•
Close each annular BOP in 60 seconds or
less
•
Unlatch the riser (LMRP) connector in 45
seconds or less
Current ROV BOP Intervention Systems
BOP Skids
Example 1
High flow 66 gpm
Remote reservoir
Seabed Accumulators
Rated Output Press: 5,000 psi
Rated Charge Press: 7,500 psi
Rated Output Flow: 100 gpm
Example 2
High flow 66 gpm
High press 30 lpm
Reservoir = 88 gals
Example 3
High flow 11 gpm
High press 3 gpm
Reservoir = 88 gals
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Hyd loads to close a blind/shear ram
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API Std 53 7.3.20.1 ROV Intervention
• All critical functions shall meet the closing time requirements in 7.3.10.4
• Close each ram BOP in 45 seconds or less
• Close each annular BOP in 60 seconds or less
• Unlatch the riser (LMRP) connector in 45 seconds or less
• API does not consider
• Well pressure
• Pipe in the hole
• Water depth
WROV BOP System meets the minimum criteria it meets API Std 53
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Ultra Heavy Duty Gen III WROV
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UHD3 Software
Workflow-centric interface
Improved Diagnostics
Improved user experience
3/4/2015
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Simplified Configuration
Fwd.
Thrusters
HPU 250hp
Port Manip.
Valvepack
Aft
Thrusters
Reservoir,
Fluid 2
Reservoir,
Hyd. Oil.
Reservoir,
Fluid 1
ISOL-8
Aux. Pump
Tooling Valve Pack
9
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ISOL – 8 Pump
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API-53 Compliant BOP Override Solutions
ISOL-8 Pump
• Isolated Hydraulic Power Unit, Integral to ROV (not a skid)..
• Each pump module is an independent machine and the array is controlled and
synchronized in software.
• Pumps a wide variety of fluids at high flow rates.
• Hydrogenated Nitrile (HNBR) seals compatible with mineral oil, water based oil,
fresh and sea water, glycol, methanol and MEG.
• Input/Oil side uses Nitrile (NBR) seals
• Software Control of
− Pressure
− Flow
− Fluid Source(s)
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Aux. Pump Performance
•
•
•
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Software driven pump producing
• 5,000 psi/50 gpm = 8 cylinder
• 76.7GPM at 2,259 psi
• 50.3GPM at 4,846 psi
• 3,000 psi/33 gpm = 4 cylinder
Hydrogenated Nitrile (HNBR) seals
compatible with mineral oil, water based
oil, fresh and sea water, glycol, methanol
and MEG.
Input/Oil side uses Nitrile (NBR) seals.
BOP Closure Mode
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Beyond API 53 – Fluid Intervention
Vessel Equipment
Water Jetting/Blasting
Dredging
Suction
Chemical Injection
Pressure Testing
Hydraulic
ROV Skids/Equipment
Hydrate
Injection
Pressure Test
Pipeline Test
BOP
Hydraulic Actuation
Dredging
Suction
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Beyond API 53 – Fluid Intervention
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Beyond API Std 53 – Fluid Intervention
• ISOL-8 can power new ROV tools never
before possible.
• Higher power dredge pumps reduce time
on slow tasks like suction pile evacuation.
• Higher pressure and flow input allows
torque tools of much higher ratings.
• Pressure wash directly from tooling
manifold.
• ISOL-8 replaces subsea HPU for ROT
operations.
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Questions
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