Directdrive Top Drives Brochure

User Manual: Resource Library

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DRILLING SYSTEMS
DirectDrive Top Drives
Fully integrated systems with purpose-built AC electric motor and gearbox-free design.
2
High Torque Performance
LEWCO™ DirectDrive™ top drives from Cameron are manufactured for
high performance and reliability in drilling applications. The drillstem
of the patented LEWCO DirectDrive top drive is directly coupled to the
purpose built AC electric motor, which eliminates the need for a gearbox,
along with the bearing, gearing, maintenance and lubrication problems
associated with the gearbox. The result is a low-maintenance,
high-performance, high-reliability top drive designed for high torque,
severe duty drilling applications, such as directional drilling.
• Threadcompensatorsystem
• Through-shaftdesignACdrilling
motor
• Integrateddiscbrakesystem
• Integratedopenloopmotor
cooling system
• Innitelypositionablerotary
headsystemwithlocking
clamps and rotary union
• Innitelypositionablepipe
handlingsystemandlinktilt
• DualvalveIBOPwellcontrol
system
• Electrical/controlserviceloopkit
• Derrickterminationkit
• Flexibletopdrivedolly
• Elevatorlinks
The system includes:
A Fully Integrated System
Available in 500, 750 and 1000 ton load ratings, LEWCO DirectDrive top
drives are built to improve drilling efficiency, performance and reliability.
The simple, innovative design of the LEWCO DirectDrive top drive reduces
the number of complex components, while its redundant speed-sensing
capabilityhelpsenhanceoperationalreliability.Builttoughtowithstand
the most demanding drilling applications, each LEWCO DirectDrive
topdriveisdesigned,manufacturedandtestedtoAPI(8CPSL1and
Q1) standards, with third party certifications available from industry
recognizedorganizationsincludingABSandDNV,aswellashazardous
area certifications such as ATEX.
LEWCO DirectDrive Top Drives
3
DRILLING SYSTEMS
OEM AC Motors
The OEM™ AC motor used in the DirectDrive top drive possesses a
uniquesetofcharacteristicsthatmakeitwellsuitedtodrillingwithout
a gearbox in a wide variety of both land and offshore applications.
These characteristics include:
• Reliablehigh-torque/low-speeddesignwellsuitedfordemanding
applications which require more torque, such as directional drilling
• InverterdutymotorwithClassHinsulationsystemandhigh-quality
formedcoils,whichallowforgreaterslotll,increasingthecopper
contentofthemotoranditsefciencyovertheentireoperatingrange
• Robustframe,large-diameterhollowshaftandoversizedpremium
bearings
• Hazardousarearatingavailabilityandwideambienttemperaturerange
All specifications are subject to change. Information important to a particular application should be verified by Cameron.
1All torque data is based on the combined performance of variable frequency drive and AC motor.
LEWCO DirectDrive Top Drive Specifications
MODEL DDTD-500 DDTD-750 DDTD-1000
Hoistingcapacity 500 short tons 750 short tons 1000 short tons
Drilling capacity 500 short tons 750 short tons 750 short tons
DirectDrive variable AC motor performance1
Continuous torque 42,500 ft-lbs
0 - 115 rpm
72,000 ft-lbs
0 - 116 rpm
94,000 ft-lbs
0 - 112 rpm
Intermittent torque 80,000 ft-lbs
0 - 115 rpm
100,000 ft-lbs
0 - 116 rpm
130,000 ft-lbs
0 - 112 rpm
Continuous horsepower 930 from 115 - 240 rpm 1575 from 116 - 240 rpm 2075 from 112 - 240 rpm
Staticbrakecapacity 35,000 ft-lbs 57,000 ft-lbs 65,000 ft-lbs
Pipeclampcapacity 80,000 ft-lbs 110,000 ft-lbs 110,000 ft-lbs
Mud passage @ 7500 psi 3” 4” 4”
IBOPs,remote-actuatedupper
and manual-actuated lower 15,000 psi 15,000 psi 15,000 psi
Hookweight 43,500 lbs 65,000 lbs 105,000 lbs
Stack-upheight 23.8 ft 28 ft 31.3 ft
Width x depth 7 ft x 5 ft 8.2 ft x 5 ft 9.4 ft x 6.8 ft
HSE Policy Statement
At Cameron, we are committed ethically, financially and personally
to a working environment where no one gets hurt, nothing gets harmed.
©2012Cameron|TECHNOisatrademarkofCameron.VitonisatrademarkofE.I.DuPontDeNemours&Company|07/12AD00176DRL
Call Center
Tel1.832.782.6742
6401W.SamHoustonPkwy.N.
Houston,TX77041
USA
Tel1.713.983.4700
45TuasViewClose
TradeLinkPlace
Singapore637476
RepublicofSingapore
Tel65.6863.1970
RuaDezenovedeFevereiro,171
Botafogo,RiodeJaneiro
22280-030,RJ
Brazil
Tel 55.21.3257.0000
POBox18456,RA-08,BlueShedJA05&06
JebelAli,Dubai
UAE
Tel971.4.8880250
Learn more about Cameron at:
www.c-a-m.com

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