Cameron ESD for Wellheads

Cameron Willis Self-Contained Emergency Shutdown Systems Reliable ESD Protection from the Wellhead to the Flowline

Cameron Willis Self-Contained Emergency Shutdown Systems

C

ameron Willis Self-Contained Emergency Shutdown

Or, if a fire occurs, the eutectic on the fusible plug melts

(ESD) Systems are used to hydraulically actuate gate

and the system automatically closes the valve and shuts in the

valves in remote locations. As the name

well. The system can also be operated in manual mode where

implies, these systems are totally self-contained and operate as ESD to automatically shut-in production in an emergency situation. Such systems

simple operation of a needle valve opens or closes the valve. Cameron Willis Self-Contained ESD Systems are available in 1-13/16” through 7” nominal

are ideal for use in on production well-

valve sizes and work-

heads or pipelines in remote locations

ing pressures up to

such as deserts, rain forests, arctic envi-

15,000 psi. Two ver-

ronments, jungles or any area where

sions are available, a

supervision is minimal or no additional

single pump and a

power source is available. Cameron Willis Self-Contained ESD Systems feature reliable, field-proven Cameron

double pump type which can be used when control of a master

Willis Saf-T-Gard™ hydraulic actuators mounted on

valve and subsurface safety valve (SSV) is required from

Cameron FLS gate valves. The Cameron Willis con-

one control box. Options include actuator-mounted or

trol system contains the sensors and hydraulic power

stand-mounted installation, enclosed panel or non-enclosed

source necessary to close the valve when an abnor-

panel, anti-theft shroud, panel-mounted or field-mounted

mal condition detected. For example, when

pressure sensors, electric position indicators and first-

the system is in automatic mode and flowline

out indicators. In addition, fusible plugs are available

pressure increases above or below the pres-

in temperature ranges 160°F, 212°F and 283° F. Solar

sure sensors “high” or “low” settings, the system automatically

powered pneumatic and solar powered hydraulic systems are also available.

closes the valve and shuts in the well.

Features and Benefits • System incorporates reliable, field-proven Cameron FLS gate valves, Cameron Willis Saf-T-Gard actuators and control panel from a single source. • Automatic control for master valves and subsurface safety valves provides safety in remote locations. • Self-contained power source is ideal for remote areas, wells without power, or sites with minimal supervision. • Available in single-and double-pump configurations to control a single gate valve or a gate valve and SSV. • Closed loop hydraulic circuitry ensures contaminantfree, long lasting supply of operating fluid. • Field-proven in extreme warm and cold environments.

• High/low pressure sensors provide flowline pressure monitoring to preset values. • Hydraulic accumulator accommodates temperature induced volume changes of the fluid contained in the closed circuit. • Fusible plug ensures shutdown in case of fire. • All components housed in secure stainless steel enclosure which meets the requirements for operation in hazardous locations without the need to purge the box. • Control panel can be mounted to the actuator or to a nearby stand to accommodate a variety of field situations.

Self-Contained SSV and SCSSV Control Systems

Self-Contained SSV Control System

Operating Procedure

Standard Arrangement

Place (K-1) the hydraulic dump valve in bypass, by turning the handle in the bypass position. Hand pump (B-1) to

L-1 Fusible Plug

6T

the required actuator operating pressure. This pressure can be seen on pressure gauge (E-1). When the flowline pressure is

ESD Pull to Shut In

between the low (F-1) ad the high (G-1) pressure sensor set

N-1

Set @ 150 PSI

G -1

F -1 D-1

J -1

points, the 100 regulated pressure from (C-1), which can be

Set @ 100 PSI

Set @ 5,000 psi P-1

seen on pressure gauge (D-1) will flow through the low sen-

H -1

C -1

K-1

PSL

Flowline 6T Sense

900 PSI Pre-Charge

A-1

PSH

N2

M -1

E-1 SSV

sor (G-1) and high sensor (F-1) allowing the 100 psi to hold

6T

B-1

(K-1) hydraulic dump valve closed. Now take (K-1) out of Material List

bypass by turning the handle to the in-service position. The

the reservoir, closing the surface safety valve (SSV).

Suction Strainer Hand Pump Regulator Pressure Gauge, 0-200 psi E. Pressure Gauge, 0-6000 psi

Self -Contained SSV and SCSSV 5000 psi Control System

Self -Contained SSV and SCSSV 10,000 psi Control System

Standard Arrangement

Standard Arrangement

system is now in service. If an ESD, fire, or PSHL occurs, the pilot pressure from (K-1) dump valve will be removed, allowing (K-1) to dump the fluid from the actuator back into

H-1

G-1

F. G. H. J. K.

High Pressure Sensor Low Pressure Sensor Relief Valve ESD Valve 2 Way N.O. Dump Valve with Manual Override

F-1

L. Hydraulic Fusible Plug M. 5000 psi Accumulator N. Filler/Breather P. Relief Valve

H-1

Set @ 150 psi

ESD Pull to Shut In

A. B. C. D.

G-1

F-1

Set @ 150 psi

ESD Pull to Shut In

D-1

D-1

N-1 J-1

N-1

PSL

Set @ 100 psi Set @ 5,000 psi A-1

J-1

PSH Flowline 6T Sense

C-1

L-1

P-1

6T

K-1

900 psi Pre-Charge

N2

M-1

Fusible Plug

Set @ 100 psi A-1 A-2

SSV

Q-1

900 psi Pre-Charge

N2

M-2

Flowline 6T Sense

E-2 B-1

SCSSV

6T

K-1

900 psi Pre-Charge

G. H. J. K.

Low Pressure Sensor Relief Valve ESD Valve 2 Way N.O. Dump Valve with Manual Override L. Hydraulic Fusible Plug

M-1

Fusible Plug

E-1 SSV 6T

Set @ 10,000 psi

K-2

Q-1

900 psi Pre-Charge

N2

M-2

E-2 SCSSV 4T

Material List Suction Strainer Hand Pump Regulator Pressure Gauge, 0-200 psi E. Pressure Gauge, 0-6000 psi F. High Pressure Sensor

N2

S-1

4T

A. B. C. D

L-1

P-1

P-2

S-1 K-2

PSH

C-1

B-1

6T

P-2 Set @ 5,000 psi

Set @ 5,000 psi

E-1

R-1 B-1

PSL

Material List M. 5000 psi Accumulator N. Filler/Breather P. Relief Valve Q. Flow Control R. 3-Way Valve S. Low Pressure Accumulator

A. B. C. D.

Suction Strainer Hand Pump Regulator Pressure Gauge, 0-200 psi E. Pressure Gauge, 0-6000 psi F. High Pressure Sensor

G. H. J. K.

Low Pressure Sensor Relief Valve ESD Valve 2 Way N.O. Dump Valve with Manual Override L. Hydraulic Fusible Plug

M. 5000 psi Accumulator N. Filler/Breather P. Relief Valve Q. Flow Control R. 10,000 psi Hand Pump S. Low Pressure Accumulator

SSV Control Panel The control system for a typical Cameron Willis Self-

necessary output pressure to the actuator. Closed loop

Contained ESD System is incorporated into a 316 stain-

hydraulic circuitry for maintenance of hydraulic pressure.

less steel enclosure with a mounting bracket. Connectors

Hydraulic accumulator with 900 psi nitrogen pre-charge

are mounted on the side of the panel for ease of installa-

for thermal expansion. Relief valves on both high pres-

tion in virtually any field layout.

sure and low pressure hydraulic circuits. ESD valve for

A typical controls system enclosure includes the following components: Hydraulic hand pump to provide the

emergency shutdown. Pressure gauges to monitor output pressures for the high pressure and low pressure circuit.

SSV Control Panel Features 100 60 40

4000

160

20 0

3000 2000

140

200

0

1

psi

Schematic Reference

1

D-1

6000

2 PLOT PRESSURE

Item

5000

1000

180

psi

SSV PRESSURE

Name Pilot Pressure

IN SERVICE

3 PLOT PRESSURE

4

PLOT PRESSURE

5

PILOT MODE SELECTOR

6

ESO PULL TO CLOSE

2

E-1

SSV Pressure

3

K-1

Turn Clockwise to Override Pilots

4

K-1

Turn Counterclockwise for Normal Operation

5

Q-1

Pilot Mode Sector In-Service/Test

6

J-1

ESD Pull to Close

7

G-1

Low Pilot

8

F-1

High Pilot

9

C-1

Pilot Supply Regulator

10

B-1

Hand Pump

HAND PUMP

10 LOW PILOT

7

HIGH PILOT

PILOT SUPPLY REGULATOR

8

9

Typical Cameron-Willis ESD Control System

Fusible Plug

EMERGENCY SHUTDOWN

ESD Station

Control Panel

Actuator

Bonnet Sense Line

Needle Valve

Wing Valve

Flow Line

Cameron-Willis ESD System wit Pole-Mounted Control Panel Controlling Single SSV

The Cameron Willis self-powered control system provides a hydraulic power to remote areas.

One Source. One Choice. Cameron Willis.

The Cameron-Willis ESD System Brings Customers the Cameron Single Source Advantage From the wellhead to the control panel, from installation to field service, Cameron Willis Self-Contained ESD Systems bring the full support of Cameron’s vast product knowledge and technical expertise. Each system starts with Cameron’s highly successful S and IC Wellhead Systems. Next, Cameron offers a choice of popular gate valves including the rugged FLS Gate Valve. The addition of Cameron-Willis H2 Production Chokes and a full line of Saf-T3000 4000 2000

5000

1000 0

100

180

SSV RE SSU PRE

200 20 0

Se

rvic

Ou to fS erv ice

psi

T PLO RE SSU PRE

IN

E VIC SER

ESOCLOSE L TO PUL

e

D

ES

Gard™ Actuators com-

160

60 40

In

6000

psi

140

D HAN P PUM

pletes the Christmas tree

E T MOD OR PILO ECT SEL T PLO RE SSU PRE T PLO RE SSU PRE

PLY T SUP TOR PILO ULA REG

H HIG T PILO

LOWT PILO

assembly. The addition of the Cameron Willis ESD Control System completes the all-Cameron ESD system with reliable components from just one source. Additional benefits come from Cameron’s CAMSERV™ Aftermarket Services Program that provides a full range of installation, maintenance and repair services any time, anywhere in the world. No one can match the ability of Cameron to provide such complete solutions for such a wide variety of applications.

Western Hemisphere Cameron

Cameron Willis

PO Box 1212

10810 N.W. Freeway

Houston, Texas 77251-1212

Houston, Texas 77092

Tel 713 939 2211

Tel 713 683 4600

Fax 713 939 2620

Fax 713 683 4350

Eastern Hemisphere Cooper Cameron (U.K.) Ltd.

Cameron Willis

5 Mondial Way

Aghafad, Longford

Harlington

Republic of Ireland

Hayes, UB3 5AR

Hayes, UB3 5AR

Tel

Tel

011 44 181 990 1800

Fax 011 44 181 990 1888

011 353 43 45301

Fax 011 353 43 41560

Asia Pacific/Middle East Cooper Cameron (Singapore) Pte, Ltd.

Cameron Willis

No. 2 Gul Circle, Jurong Industrial Est

5003 93rd Street

Locked Bag Service No. 3

Edmonton, Alberta T6E 559

Jurong Town Post Office

Tel 65 8613355

Singapore

Fax 65 8616197

Republic of Singapore Tel 65 8613355 Fax 65 8616197

Visit our website at www.camerondiv.com

©Cooper Cameron Corporation, Cameron Division, Printed in USA 12/00, OP/5M, WR10168/TC1440