Cameron Mudline Suspension System - cedip

Cameron Mudline
Suspension System

2
Centric 15 Mudline Wellhead System
Key features make the
patented Cameron Centric 15
and Centric 15 EX Mudline
Suspension Systems the most
economical, dependable mudline
equipment on the market today.
Every Centric 15 and Centric
15 EX system comes with the following
features - each designed
to improve performance and
enhance reliability:
• Stack-Down Configuration
• Patented Wash Sleeve Design
• Separate Running/Tieback
Threads
• Prealigning Threads
Throughout
• Stab-In and Threaded Tieback
Options
• Metal Sealing
• High Pressure System
Available as Standard
In addition, the Centric 15
system offers the following
options:
• Dual Centralization
• Tieback Testing Capability
• Positive Hanger Lock-Down
• Annular Sealing TA Caps
Compare, feature for feature,
you will see that Cameron’s
Centric 15 and Centric 15 EX
Mudline Suspension Systems are
your best choices for drilling,
temporary abandonment and
production tieback operations at
the mudline.
The Cameron Centric 15 Mudline Suspension
System is a proven, dependable system for
drilling, temporary abandonment and production
tieback operations.
System Features
¥ Deep stack-down configuration eliminates
trash/debris traps and improves the reliability
and efficiency of tieback operations.
¥ Separate thread and seal areas for running
and tieback minimize the risk of damage to
critical areas.
¥ High-pressure and high casing hanger load
capacities increase system versatility.
¥ Patented washout technique for large diameter
casing strings eliminates pipe rotation.
¥ Washout is possible with conductor set in
tension.
¥ Unique split-ring design prevents damage to
cage during compression in wellhead, accommodates
debris and provides two point
centralization.
¥ All threads prealign to facilitate installation
and tieback.
¥ Split ring hanger reciprocation is achieved
without recovery for resetting.
Installation Features
¥ All running tools feature right-hand release
for ease of abandonment.
¥ All hangers incorporate dual centralization to
ensure concentricity.
¥ Washout ports located in the running tools.
¥ Low torque metal seals with resilient backup
ensure seal integrity.
¥ External test ports for hanger/running tool
interface provide means for testing prior to
installation.
¥ Torque tool profiles in all running tools.
Temporary Abandonment Features
¥ A single temporary abandonment cap covers
both production bore and annulus, locking the
hangers in place.
¥ Cap can be run and retrieved inside surface
casing.
¥ Single-trip cap design saves a trip during
installation and retrieval.
¥ Stab-in temporary abandonment caps
standard.
¥ Handling profile extended for clear access.
Tieback Features
¥ Robust threads ensure damage-free
connection.
¥ Right-hand make-up for tieback tools ensures
ease of installation.
¥ Torque profiles available in tieback tools.
¥ Low torque metal-to-metal seals with resilient
back-up ensure sealing integrity.
¥ Ability to tieback to the 13 3/8Ó casing prior to
removing cap ensures safety, saves rig time.
SD016628

Washout Procedure
The Cameron Centric 15
Mudline System incorporates
a patented washout
technique which eliminates
the need to rotate the casing.
In this system, a washsleeve
in the running tool can be
opened and closed using a
torque tool run as part of the
cement stinger. Since the
sleeve is not affected by riser
bending loads, it can be
operated at all times using
low torque rates. Also, the
washports can be opened
with the cement string in
place, minutes after completion
of cementing.
Split Ring Mudline Hanger Engagement Sequence
Hanger
Running Through
Casing
1. Hanger is inserted through
wellhead into casing. Split ring
is retracted. Setting ring and
fluted hanger section prevent
presetting.
Split Landing Ring
Engages Receiving
Hanger Profile
2. Split ring arrives at hanger
profile where it easily expands
prior to landing.
Split Landing Ring Sets
and Setting
Ring Engages
3. Split ring lands in hanger
prior to hanger suspension
on load ring.
3
SD016675
With more flexible casing
strings that are less prone to
high manipulating torque,
washout ports on the surface
and production string running
tools are opened by
rotating the casing. The
ports are designed to ensure
cleaning action.
Hanger
Lands on
Load Ring
SD016624
4. Hanger seats on split ring; setting
ring is forced into fully expanded
position. Hanger is suspended
parallel to the receiving profile.

Mudline Liner Hanger Temporary Abandonment Cap
SD016622
Tieback Methods
A mudline hanger is used to
suspend casing strings which
will not be tied back to the
surface during tieback operations.
This option allows
operators the flexibility of
installing additional strings
of casing as needed without
the need for additional risers
to surface and the handling
time associated with surface
wellhead equipment.
Threaded Tapered Stab-in
The Centric 15 temporary
abandonment cap protects the
casing hangers and tieback
profiles from the environment
during the abandoned period.
It is installed in the production
string mudline hanger sealing
that bore and the next casing
annulus. The cap is engaged in
the 9 5/8Ó hanger with a stabtype
threaded ring and locks
itself in the 13 3/8Ó hanger with
a device activated by the downward
motion of the cap. During
recovery, trapped pressure can
be vented and its source identified.
Other caps and trash
covers are available for larger
hangers.
SD016618
The Centric 15 System uses threaded or stab-in type tieback connections
on the smaller sizes and tapered threads on larger sizes where maximum
bending and tensile forces are exerted. Tieback threads and seal areas
are not used during drilling and abandonment.
SD016629
4

5
Centric 15 EX Mudline Wellhead System
The Cameron Centric 15 EX Mudline Suspension
System is an economical, stack-down system. Its
configuration is based on the Centric 15, but a
shorter profile makes it ideal for exploration
applications.
System Features
¥ Stack-down configuration eliminates
trash/debris traps and improves the reliability
and efficiency of tieback operations.
¥ Separate thread and seal areas minimize
possibility of damage to critical areas.
¥ High-pressure and high casing hanger load
capacities increase system versatility.
¥ Optional patented washout technique for large
diameter casing strings eliminates pipe
rotation.
¥ Unique split-ring design prevents damage to cage
during compression in wellhead, accommodating
debris and provides two point centralization.
¥ All threads throughout the system prealign to
ensure precise installation and tieback.
¥ Split ring hanger reciprocation is achieved without
recovery or resetting.
Installation Features
¥ All running tools feature right-hand release for
ease of installation.
¥ Hangers can incorporate dual centralization to
ensure concentricity.
¥ Washout ports are located in the running tools.
¥ Low torque metal seals with resilient backup
ensure seal integrity.
¥ External test ports for hanger/running tool
interface provide means for testing prior to
installation.
Temporary Abandonment Features
¥ A temporary abandonment cap covers the
production bore and incorporates a simple
check valve.
¥ Threaded cap design standard. Optional stab-in
design available.
¥ Pressure retaining or vented cap designs
available.
¥ Handling profile extended for clear access.
Tieback Features
¥ Robust threads ensure damage-free connection.
¥ Right-hand make-up for surface and
production tieback tools ensures ease of
installation.
¥ Torque profiles available in tieback tools.
¥ Low torque metal-to-metal seals with resilient
back-up ensure sealing integrity.
SD016627

Washout Procedure
The Cameron Centric
15 EX Mudline System incorporates
the option of a
patented washout technique
which eliminates the need to
rotate the casing. In this
system, a washsleeve in the
running tool can be opened
and closed using a torque
tool run as part of the cement
stinger. Since the sleeve is
not affected by riser bending
loads, it can be operated at
all times using low torque
rates. Also, the washports
can be opened with the
cement string in place
minutes after completion
of cementing.
Split Ring Mudline Hanger Engagement Sequence
Hanger
Running Through
Casing
1. Hanger is inserted through
wellhead into casing. Split ring
is retracted. Setting ring and
fluted hanger section prevent
presetting.
Split Landing Ring
Engages Receiving
Hanger Profile
2. Split ring arrives at hanger
profile where it easily expands
prior to landing.
Split Landing Ring Sets
and Setting
Ring Engages
3. Split ring lands in hanger
prior to hanger suspension
on load ring.
6
SD016625
With more flexible casing
strings that are less prone to
high manipulating torque,
washout ports on the surface
and production string running
tools are opened by
rotating the casing. The
ports are designed to ensure
cleaning action.
Hanger
Lands on
Load Ring
SD016624EX
4. Hanger seats on split ring; setting
ring is forced into fully expanded
position. Hanger is suspended
parallel to the receiving profile.

Mudline Liner Hanger Temporary Abandonment Cap
Tieback Methods
Threaded
SD016622
A mudline hanger is used to
suspend casing strings which
will not be tied back to the
surface during tieback operations.
This option allows
operators the flexibility of
installing additional strings
of casing as needed without
the need for additional risers
to surface and the handling
time associated with surface
wellhead equipment.
Tapered
The Centric 15 EX System uses threaded or stab-in type tieback
connections on the smaller sizes and tapered threads on larger
sizes where maximum bending and tensile forces are exerted.
Tieback threads and seal areas are not used during drilling and
abandonment.
The temporary abandonment cap
protects the casing hangers and
tieback profiles from the environment
during the abandonment
period. It is installed in the production
string mudline hanger
and seals that bore. The cap is
engaged in the 9 5/8Ó hanger running
thread profile with either
threaded or stab-in action. Other
caps and trash covers are available
for larger hangers.
Stab-in
SD016619
SD016626
7

8
MX Subsea Tree
The MX subsea tree has been
developed as a simple production
system that can be economically
installed on a mudline well from
a jack-up rig. This system uses
diver assistance to minimize cost
and complexities and is very suitable
for shallow water production
projects.
Features
¥ Flexible system can be installed
over Cameron and other mudline
products.
¥ Offers minimum cost and low
maintenance.
¥ Tree designs are available for
single or multiple string completions.
¥ Reliable and field-proven fail
safe gate valves are available in
either a stacked or composite
valve block configuration.
¥ Tree design offers the option of
completing inside 9 5Ú8" or 7"
casing.
¥ Primary metal-to-metal seals
are used at all environmental
interfaces.
¥ Tree features a self-orienting
tubing hanger with positive
lockdown and anti-rotation
capabilities.
¥ SCSSV lines are independently
controlled.
¥ Tree can be readily maintained
with diver assistance.
SD016673

Centric 15 and 15 EX Capacity Charts
Centric 15 Capacity Chart
30” x 20” x 13 3/8” x 9 5/8” x 7” Casing Program
System Variables 30” Hanger 20” Hanger 13 3/8” Hanger 9 5/8” Hanger 7” Hanger
Hanger Type n/a Load Shoulder Load Shoulder Split Ring Split Ring
Service Standard Standard H2S or Standard H2S or Standard H2S or Standard
Min I.D. (in.) 26.25 17.58 12.31 8.803 6.115 (5) /5.905 (6)
Max O.D. (in.) 30.30 27.25 18.51 12.23 8.375
Recommended Bit (in.) 26 171/2 12 1/4 8 3/4 61/8 (5) /5 7/8 (6)
Pressure Rating (psi) n/a 4,020 H2S 9,470 H2S 11,840 (2) H2S 10,610 (5)
Std 10,660 H 2 S 10,160 H 2 S 13,340 (6)
Std 13,320 (2) Std 11,940 (5)
Std 11,430 Std 15.010 (6)
Rated Hanging H2S 2,461,000 (1) H2S 1,504,000 H2S 623,000
Capacity (lb) n/a 3,282,000 Std 2,769,000 Std 1,692,000 Std 701,000
Flow-By Running (in. 2 ) n/a 81.90 21.70 9.90/6.61 (3) 4.70/2.6 (4)
Flow-By Landed (in. 2 ) n/a 48.10 14.40 10.3 4.30
Particle size (in.) n/a 1.75 0.88 0.38 0.38
Axial Capacity (lb) H2S 2,165,000 .(1) H2S 1,534,000 H2S 531,000 (5)
(running) n/a 2,422,000 Std 2,436,000 Std 1,726,000 H2S 689,000 (6)
Std 597,000 (5)
Std 776,000 (6)
Thread Type 3 TPI Mod. 3TPI Mod. 3 TPI Mod. 3 TPI Mod.
(left or right hand)
Number of Turns
n/a Square Thread, Left Square Thread, Left Square Thread, Left Square Thread, Left
to Full Engagement n/a 7 13 13 13
Number of Turns to 7
Expose Washout Ports n/a (Washout Sleeve) 8 8 7
(1) Hanger body only for H 2 S service
(2) High pressure system locates washout ports in hangers to enable true metal seal
(3) Flow-By areas for running through 48lb/72lb - 13 3 ⁄8" casing
(1) Flow-By areas are for running through 65 lb/84lb 16" - casing
(2) Flow-By areas are for running through 32.75lb/60lb - 10 3 ⁄4" casing
(3) Hanger body only for H 2 S service
(4) Flow-By areas are for running through 32lb/53lb - 9 5⁄8" casing
(5) For use with 20lb/29lb - 7" casing
(6) For use with 32lb/38lb - 7" casing
Centric 15 EX Capacity Chart
30” x 16” x 10 3/4” x 7 5/8” Casing Program
System Variables 30” Hanger 16” Hanger 10 3/4” Hanger 7 5/8” Hanger
Hanger Type n/a Load Shoulder Split Ring Split Ring
Service Standard Standard H2S or Standard H2S or Standard
Min I.D. (in.) 20.12 14.99 10.04 6.80
Max O.D. (in.) 30.30 21.13 14.50 9.50
Recommended Bit (in.) 20 14 3/4 97/8 6 3/4
Pressure Rating (psi) n/a 6900 H2S 11,300 H2S 10,000
Std 12,800 Std 11,252
Rated Hanging H2S 1,520,000 (3) H2S 926,710
Capacity (lb) n/a 2,897,000 Std 1,710,000 Std 1,042,550
Flow-By Running (in. 2 ) n/a 265 11.90/10.50 (1) 6.1/4.8 (2)
Flow-By Landed (in. 2 ) n/a 24 15.40 5.50 (2)
Particle size (in.) n/a 1.25 0.50 0.38
Axial Capacity (lb) H2S 2,146,000 (3) H2S 926,710
(running) n/a 2,910,000 Std 2,415,000 Std 1,042,550
Thread Type 4 TPI Tapered 3 TPI Mod. 3 TPI. Mod.
(left or right hand)
Number of Turns
n/a Thread, Left Square Thread, Left Square Thread, Left
to Full Engagement
Number of Turns to
n/a 2-1/2 13 13
Expose Washout Ports n/a n/a 8 8
Other programs available upon request.
9

Western Hemisphere
Cameron
PO Box 1212
Houston Texas 77251-1212
Tel 713 939 2211
Fax 713 939 2620
http://www.camerondiv.com
Eastern Hemisphere
Cooper Cameron (U.K.) Ltd.
5 Mondial Way
Harlington
Hayes UB3 5AR
Tel 44 181 9901800
Fax 44 181 9901888
http://www.camerondiv.com
Asia Pacific/Middle East
Cooper Cameron (Singapore) Pte. Ltd.
No. 2 Gul Circle, Jurong Industrial Est
Locked Bag Service No. 3
Jurong Town Post Office
Singapore 2262
Republic Of Singapore
Tel 65 8613355
Fax 65 8616197
http://www.camerondiv.com
© Cooper Cameron Corporation, Cameron Division, Printed in USA, 12/97, TG/7.5M, WR6415/TC1256