TC1625 Catalog Pgs41-43

© CAMERON, P.O. BOX 1212, HOUSTON TX, 77251-1212, TEL: 713.939.2211, FAX: 713.939.2620, WWW.CAMERONDIV.COM

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Cameron Willis Surface Chokes and Actuators

Cameron Willis is a separately managed unit within the Cameron organ-ization focused on the worldwide supply of Cameron and Willis brandchokes and actuators. The Cameron Willis choke product line offerschokes for production applications, both subsea and surface. Chokes areavailable in a wide range of trim and body materials with a full range ofaccessories, including actuators.

In addition, Cameron Willis can provide operators with a computersizing and selection program to determine the right product for theapplication.

Cameron Willis choke products include:• Needle and Seat Chokes (H2 Classic and H2I)

Positive and Adjustable• Multiple Orifice Valves (MC-10 and MC-20)• Control Chokes (CC15, CC20, CC30, CC40,CC60)

Surface and SubseaPlug and CageExternal Sleeve

• Choke Actuators (Aqua-Torq and SLCA)Surface and Subsea

H2 Classic™ and H2I™ Needle and Seat ChokesThe H2 Classic Choke has an externally threaded body and is the standardfor needle and seat chokes. The Cameron H2I Choke has a recessedbean/seat design and an externally threaded bonnet cap to easemaintenance.Nominal Sizes: H2 Classic: 2", 3", 4"

H2I: 2"Needle/Maximum Orifice Size: H2 Classic: 1", 2", 3"

H2I: 1", 2"Working Pressure: 2000 to 15,000 psiOperating Temperatures: API ratings K, L, P, R, S, T, U, X

–75˚ F to +350˚ F (–59˚ C to +177˚ C)Materials: API ratings AA, BB, CC, DD, EE, FF, HHNeedle and Seat Trims: Standard: Induction hardened

stainless steelSuper: Stainless steel with tungsten carbide wear surfaces

Performance Verification: API 6A, including performance verification testing for PR2 level chokes

Multiple Orifice Valves (MOVs)The Cameron Willis MOV uses two matched discs, each with a pair ofcircular openings to create variable flow areas as one disc is rotatedrelative to the other.Applications: Wellhead, manifold, separator, let-down,

waterflood, CO2, EOR, gas lift, subseaSizes: MC-10: 1" to 2-1/16"

MC-20: 2" to 4-1/16"Working Pressure: MC-10: to 3000 psi

MC-20: to 5000 psiOperating Temperatures: –50˚ F to +250˚ F (–46˚ C to +121˚ C)Materials: API ratings AA, BB, CC, DD, EE, FF, HHTrims: Complete range of materials and trimsActuation: Manual or actuated

Comparison of Cameron Willis Production Choke Characteristics

Cameron Willis Choke ModelApplication H2 H2I CC15 CC20 CC30 CC40 CC60 MC-10 MC-20

EnvironmentSurface • • • • • • • • •Subsea • • • • •

CharacteristicsNeedle and Seat • •Positive • •Adjustable • • • • • • • • •Multiple Orifice Valve • •Plug and Cage • • • • •External Sleeve • • • •Manual • • • • • • • • •Actuated • • • • • • •

H2 Classic Positive Choke (Shown without Bean)

H2I Adjustable Choke

MC-10 MOV with Electric Actuator

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Cameron Willis Surface Control Chokes

Cameron Willis Control Chokes are designed to provide precise flow andpressure control over the entire operating range. They can be suppliedwith plug and cage or external sleeve trims and are ideally suited forsingle- or multi-phase liquid and gas production service. Typical applica-tions include Christmas trees, line heaters, manifolds, water injection and gas lift. These chokes are available with the Cameron Willis SLCAActuator.

Plug and Cage Control ChokesThe Plug and Cage Control Choke uses a plug on the inside diameter ofthe cage to throttle the flow ports. This trim is typically used for highcapacity/medium pressure drop applications such as oil production.Applications: Wellhead, manifold, separator, let-down,

waterflood, CO2, EOR, gas lift, subsea, injection

Operating Environment: Platform, land-based and subseaService: High flow capacity, moderate erosionModels Available: CC15, CC20, CC30, CC40, CC60, CC80Working Pressure: 5000 and 10,000 psiOperating Temperatures: API ratings K, L, P, R, S, T, U, X

–75˚ F to +350˚ F (–59˚ C to +177˚ C)Materials: API ratings AA, BB, CC, DD, EE, FF, HHTrims: Variety of materials and configurations Actuation: SLCA, Aqua-Torq

External Sleeve Control ChokesThe External Sleeve Control Choke has a sleeve that throttles the flow onthe outside diameter of the ported cage. Numerous field applicationshave shown this trim to be the industry leader in erosion performance.As a result, this trim is the preferred solution for low to moderatecapacity/high pressure drop applications.Applications: Wellhead production and injection Operating Environment: Platform, land-based and subseaService: High erosive and high pressure dropModels Available: CC20, CC30, CC40Working Pressure: 5000, 10,000 and 15,000 psiOperating Temperatures: API ratings K, L, P, R, S, T, U, X,

–75˚ F to +350˚ F (–59˚ C to +177˚ C)Materials: API ratings AA, BB, CC, DD, EE, FF, HHTrims: Tungsten carbide cage and sleeveActuation: SLCA, Aqua-Torq or user preference

SLCA™ ActuatorThe SLCA Actuator is offered in both surface and subsea designs. Itprovides precise incremental steps from open to closed. Water Depth Rating: To 10,000 ft (3048 m)Pneumatic Operating Pressure: 100 psi, (80 psi min to 150 psi max),

110 ft/lb at 100 psiHydraulic Operating Pressure: 1500 psi, (3000, 5000 psi maximum) Operating Temperatures: Surface: –20˚ F to +150˚ F (–29˚ C to 66˚ C)

Subsea: 0˚ F to +150˚ F (–18˚ C to 66˚ C)Performance Verification: API 6A PR2, API 17D

SLCA Surface Actuator

Plug and Cage Control Choke

External Sleeve Control Choke


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Cameron Willis Subsea Control Chokes

Cameron Willis offers two types of subsea control chokes, non-retrievableand retrievable. The non-retrievable choke is permanently attached to asubsea structure. The retrievable chokes are designed so that the trim,actuator and retention mechanism can be retrieved to the surface formaintenance and upgrading.

Cameron Willis designs and manufactures actuators for use with theirline of subsea production control chokes. Three designs are available: theRD250 Gearbox, the Aqua-Torq and SSLCA.

Cameron Willis Subsea Control ChokesCameron Willis subsea chokes are used in production, water injection, gas injection and gas lift applications. Non-retrievable designs are usedprimarily in shallow water or as part of a retrievable manifold/moduleassembly. Retrievable chokes feature a retrievable insert and a fixedchoke body.

Both retrievable and non-retrievable subsea chokes are available withplug and cage or external sleeve trim packages. Retrievable chokes areavailable with two types of connections for attaching the retrievable insert to the choke body: Crown Connectors and Clamp Connectors.Nominal Sizes: 2", 3", 4", 6"Water Depth Rating: To 10,000 ft (3048 m)Working Pressure: To 15,000 psiOperating Temperatures: To 400˚ F (204˚C) Materials: API ratings AA, BB, CC, DD, EE, FF, HHPerformance Verification: API 6A Appendix F, API 17DActuation: Non-Retrievable – SSLCA, RD250 Gearbox

Retrievable – Aqua-Torq, RD250 Gearbox

RD250 Gearbox ActuatorThe RD250 Gearbox actuator was developed for diver or ROV operation.In this design, the gearbox is oil-filled and pressure-compensated. Anexternal, local position indicator on the case allows precise choke settingsto be easily read.

Subsea Retrievable Choke with Crown Connector

Subsea Retrievable Choke with Clamp Connector

Aqua-Torq Subsea Actuator (Cutaway View)

SSLCA™ ActuatorThe Subsea Stepping Linear Choke Actuator (SSLCA) was developed foruse on the Cameron Willis non-retrievable control chokes. The design of the SSLCA actuator includes independent open and close pistonassemblies, providing a “double step” operation on the close piston for rapid shut-in of the choke.

Aqua-Torq™ ActuatorThe Cameron Willis Aqua-Torq Actuator is a compact and field-provenhydraulic actuator which provides actuation in precise incremental stepsfrom open to closed. It is suitable for mineral oil and water-based control fluids.

The Aqua-Torq Actuator is oil-filled and pressure-compensated and hasbeen endurance tested to a minimum of 1 million actuation pulses andhyperbaric tested to 10,000 ft (3000 m). It incorparates a local, externalposition indicator and is available with an internal LVDT remote positiontransmitter.

Remote Position FeedbackCameron Willis offers a remote position feedback sensor as an option forthe Aqua-Torq and SSLCA actuators. These sensors are robust, reliableand field-proven. They have been tested to simulated water depths of10,000 ft (3000 m).

Fast Close ModuleAn operator may be faced with closing the well faster for HIPP systems,direct hydraulic systems, or oil fields with steep gradient flowlines. Withthis in mind, Cameron Willis offers a Fast Close Module that can be usedwith Aqua-Torq and SSLCA actuators. The Fast Close Module ensuresthat the operator can close a choke within 30 seconds without damagingthe choke or causing excessive pressure drops within the hydraulic supplysystem.

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TC1625 Catalog Pgs41-43