CPS-3000
Ultradeepwater Cementing Package
Designed and built for the most demanding deepwater
operations in the world
Applications
Mixing and pumping of cement
slurries in deepwater applications
■
High pressure pumping and
testing operations
■
Precision pumping for integrity
tests
■
Features and benefits
High hhp to allow for metered
displacements and completion
pumping operations
■
Increased mixing rate capability
to minimize job time
■
Accurate control of slurry
density to achieve desired
properties
■
Complete redundancy of systems
■
The CPS-3000 ultradeepwater cementing package was designed and built to provide the highest degree of accuracy and
reliability in the most challenging deepwater environments.
Performance expectations are
extreme for cementing units
onboard ultradeepwater drillships
and semisubmersibles. Rig spread
rates are high and every opportunity
to impact the bottom line must
be taken. Hydraulic horsepower
requirements are also high to
allow displacement by the unit for
improved accuracy and to allow
required completion operations.
Maximum cement mixing rates
and downhole pump rates are
critical to improve overall rig
efficiency and save valuable rig
time. The integrated ability to
batch mix and pump LCM pills,
spacers, and other fluids with the
unit is essential. Liquid additive metering and injection systems must
provide accurate and continuous mixing at demanding rates. Reliable
automation for process control of the operation is key to achieving
overall service excellence.
The CPS-3000 was designed and built to exceed all these requirements.
This unit is a 3,450-hhp unit, which is capable of pumping 26 bbl/min at
pressures up to 15,000 psi (18k psi with a high-pressure manifold). The
mixing package comprises dual Mark III Slurry Chiefs with averaging
tanks capable of 22 bbl/min rates for lead slurries and 15 bbl/min rates
for standard tail systems. Twin 100-bbl batch mixers can be integrated
for spacer or pill mixing, which is isolated from contamination points.
A high-rate, process-controlled, direct-injection liquid additive system
provides the ability to accurately meter up to 7 chemicals into the mix
water stream.
Two complete process control units handle data acquisition and control
for redundancy and reliability of automated cement mixing, solids fraction
monitoring, foam process control, and liquid additive system.
CPS-3000 Ultradeepwater Cementing Package
Discharge pressure, psi
14,000
12,000
12,000
10,000
8,000
6,000
Transmission, first gear: 4.24
Transmission, second gear: 2.32
Transmission, third gear: 1.69
Transmission, fourth gear: 1.31
Transmission, fifth gear: 1.00
Transmission, sixth gear: 0.73
4,000
2,000
0.5
Horsepower Performance Data for
Electrical-Driven Pump with 51/2-in Fluid End
Max. discharge pressure: 15,000 psi
1.5
2.5
Max. pump rate: 8.9 bbl/min
3.5 4.5 5.5 6.5
Pump rate, bbl/min
7.5
Discharge pressure, psi
16,000
Horsepower Performance Data for
Electrical-Driven Pump with 33/4-in Fluid End
8.5
10,000
Max. discharge pressure: 10,000 psi
Min. pump rate: 3.35 bbl/min
8,000
6,000
Transmission, first gear: 3.75
Transmission, second gear: 2.69
Transmission, third gear: 2.20
Transmission, fourth gear: 1.77
Transmission, fifth gear: 1.58
Transmission, sixth gear: 1.27
Transmission, seventh gear: 1.00
4,000
2,000
2
4
6
Max. pump rate: 19.29 bbl/min
8 10 12 14 16
Pump rate, bbl/min
18
20
Hydraulic horsepower requirements are high for cementing units on ultradeepwater drillships and semisubmersibles.
CPS-3000 Specifications
General Specifications
Engines
Capability each
Transmissions
Cooling Systems
Triplex Pumps
Model 1
Capability
Model 2
Capability
Discharge Manifold
Displacement Tanks
Slurry Mixing System
Model
Maximum Mixing Rate
Volume Capacity
Liquid Additive System
Model
Capability of SUP-511
Model
Capability of SUP-512
Flow Meters
Other
Area Classification
Process control and acquisition
Auxiliary Equipment
2 General Electric GEB22 motors + 1 General Electric GEB20
860 kW (1150 bhp)
Allison S8610M with air shift, six speeds
Allison S9810M with air shift, seven speeds
Marine cooled
Gardener Denver GD1250 Series with 33⁄4-in Fluid End
18,100 psi or 8.9 bpm (FOPI)
Gardener Denver HD2250 Series with 5½ in Fluid End
10,000 psi or 19.3 bpm (IOPI)
15,000 psi
2 × 20 bbl Stainless Steel 316
Twin CBS-393 Mixing Systems with Mark III Mixers
22 bbl/min Lead Slurry and 15 bbl/min Standard Tail Slurry
(60 sacks per min dry cement per mixer)
6 bbl mixing tub and 18 bbl averaging tank per mixer
4 SUP-511 pumps (Waukesha 015U2)
0.25−11 galUS/min @ 100 psi max. discharge pressure
3 SUP-512 pumps (Waukesha 045U2)
1.0–54 galUS/min @ 100 psi max. discharge pressure
Micro Motion R050S and R100S, accurate to ± 0.5% of rate
Zone II Package–DNV certified
Redundant control systems
Twin 100 bbl Batch Mixers, electric with independent drives for each centrifugal and agitator
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Copyright © 2008 Schlumberger. All rights reserved. 08-CE-026