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Operation & Maintenance Manual
HSDW Clamp
Date Issued: February, 2011
Revision: 1
Page 1 of 12
Operation & Maintenance Manual
HSDW Clamp
Doc. No.
2013-ABCO-HSDW-200-OMM-01
This document is the property of ABCO. It shall not be reproduced or used, in whole or in part, by any
party without the written permission of ABCO.
REV.
DESCRIPTION
PREPARED
REVIEWED
APPROVED
DATE
0
Initial release
tbh
bhp
abb
Mar. 8, 2010
1
Added Urethane Protection
Option
aa
bhp
bhp
Feb. 25, 2011
2013-ABCO-HSDW-200-OMM-01
Operation & Maintenance Manual
HSDW Clamp
Date Issued: February, 2011
Revision: 1
Page 2 of 12
Table of Contents
1
Introduction
3
1.1
Purpose
3
1.2
Product Definition
3
2
Specification
4
2.1
Spec Sheet
4
2.2
Specific Drawings
4
2.3
Options and Modification
4
3
Installation
6
3.1
Installation
6
3.2
Order of Assembly:
6
4
Operation procedure
8
4.1
For Bare Joints:
8
4.2
For Foam Clad Joints:
8
5
Repair procedure / maintenance
9
5.1
Maintenance
9
5.2
Repair
9
5.3
Re-Assemble clamp
10
6
Recommended spares
12
7
Warranty policy
12
8
Appendix
12
2013-ABCO-HSDW-200-OMM-01
Operation & Maintenance Manual
HSDW Clamp
Date Issued: February, 2011
Revision: 1
Page 3 of 12
1
1.1
INTRODUCTION
Purpose
The purpose of this manual is to instruct, inform and document all data essential to the
operation, maintenance and warranty service of your subsea control umbilical clamping
system.
1.2
Product Definition
The HSDW Clamp is designed for umbilical clamping to the Marine Drilling Riser (MDR), such
that the supported umbilicals are protected within the syntactic foam envelope. The HSDW
Clamp can retain 1, 2, or 3 umbilicals as required in the drilling application.
ABCO manufactures two sizes of the HSDW Clamp, defined by the maximum umbilical
outside diameter rating. The 2” HSDW Clamp will secure 0.50” – 2.00” (one or two) lines and
the 3” HSDW Clamp will secure 1.00 – 5.00” (1,2, or 3, depending upon size) lines. Four lines
can be accommodated by opting for a double layered clamp of two lines each. See the
following specification sheet for line/clamp application.
2013-ABCO-HSDW-200-OMM-01
Operation & Maintenance Manual
HSDW Clamp
Date Issued: February, 2011
Revision: 1
Page 4 of 12
2
2.1
SPECIFICATION
Spec Sheet
2” HSDW Clamp
3” HSDW Clamp
10-lbf (4.5-kgf)
13-lbf (5.9-kg)
8-lbf (3.6-kg)
9-lbf (4.1-kg)
Length:
7.05” (179.1-mm)
8.3” (210.5-mm)
Width:
4.5” (114.3-mm)
4.5” (114.3-mm)
4” OD to 6.75” OD
4” OD to 6.75” OD
1, 2, 3 or 4
1, 2, or 3
2.00” (50.8-mm)
5.00” (127-mm)
Weight in Air (Clamp only):
Weight in Water (Clamp only):
Pipe Size:
# of Lines per Clamp:
Max. Umbilical OD:
2.2
Specific Drawings
See Appendix.
2.3
Options and Modification
2.3.1 The HSDW Clamp has a modular format such that offset from the supporting line within
the syntactic foam or height can be adjusted to match the specific application. The
clamp is equipped with a Shim Bracket that allows the clamp to be placed at any height
inside the syntactic foam. The shortest Shim Bracket is 1.25” in height, and each
subsequent size is .50” taller. (See below)
Figure 2.3-1: Shim Bracket Heights
2.3.2 For clamps that go on the bare joints the clamp is equipped with a special saddle
bracket. This bracket has the Shim Bracket outer interface built into the Saddle Bracket
with deflector profiles to permit the clamp base to remain on the Kill or Choke line
2013-ABCO-HSDW-200-OMM-01
Operation & Maintenance Manual
HSDW Clamp
Date Issued: February, 2011
Revision: 1
Page 5 of 12
during running operations without being damaged during passage through the diverter
housing. This also gives the clamp the lowest possible profile.
2.3.3 The HSDW Clamp also has the option of two kinds of Saddle Bracket. The Clamps can
be supplied with either a single U-bolt or a double U-bolt bracket. ABCO recommends
that with larger lines and/or deeper water applications the Double U-bolt Bracket be
used. (See below)
Figure 2.3-2: Saddle Bracket Options
2.3.4 The HSDW Clamp has the option of having urethane protection on the U-bolts and
between the Saddle Bracket and the Kill or Choke lines. This protection provides a measure
of electrical insulation and prevents mechanical damage to the Kill or Choke lines during
installation, maintenance, and normal operation.
Figure 2.3-3: Saddle Bracket w/ Urethane Protection
2013-ABCO-HSDW-200-OMM-01
Operation & Maintenance Manual
HSDW Clamp
Date Issued: February, 2011
Revision: 1
Page 6 of 12
3
3.1
INSTALLATION
Installation
3.1.1 The clamp bases are permanently attached to the MDR. The clamp bodies can be
permanently attached to the bases if they are inside the outer envelope of the syntactic
foam. The HSDW Clamps are rated for 1,000-lbf umbilical tension and are suitable for
installation at 50-75 foot intervals along the MDR. Clamps are placed one per joint and
located for ease of make-up while the joint string is supported at the drill-floor level.
3.1.2 The clamp assemblies are supplied as three part sub-assemblies, a Clamp, a
mounting bracket assembly, and U-bolt(s). Due to the volume of components, these
are shipped in separate crates.
3.1.3 Installation will be specific to the existence and/or diameter of the syntactic foam
mounted to the MDR. Refer to the documentation package to determine the
requirements of your installation.
3.2
Order of Assembly:
3.2.1 Place the U-bolt around the Kill or Choke Line within the dedicated mounting pocket if
foam is present. Offset the U-bolts toward the lower end of the riser 3-4 inches from the
center of the pocket to allow hand access to the clamp.
If urethane protection is utilized, insert the urethane sleeves over the U-bolts prior to
installing to the Kill or Choke Line.
3.2.2 Place the Saddle-Shim assembly over the U-bolt ends and fasten by placing the ½”
washers and Nylock nuts on the ends of the U-bolts. (25-ft*lbf Torque).
If urethane protection is utilized, place the urethane pad between the Saddle Bracket
and the Kill or Choke Lines before installing the Saddle Bracket over U-bolt ends.
3.2.3 Clamp Assemblies which protrude from the syntactic foam are installed to the SaddleShim Bracket assembly at the cellar deck level. When the umbilical slot is provided in
the syntactic foam, the whole clamp assembly can remain on the riser joints.
3.2.4 To attach the Clamp Assembly slide the slot on the bottom of the Base Bracket over
the lugs of the Shim Bracket so the holes on the opposite side line up. Insert the
Locking Pin through the Base and Shim Bracket to secure. (See Figure below). Note:
the rubber buttons on the base of the clamp will require a low compression force to
facilitate installation of the locking pin.
2013-ABCO-HSDW-200-OMM-01
Operation & Maintenance Manual
HSDW Clamp
Date Issued: February, 2011
Revision: 1
Page 7 of 12
Figure 3.2-1: Clamp to Mounting Bracket Assembly
2013-ABCO-HSDW-200-OMM-01
Operation & Maintenance Manual
HSDW Clamp
Date Issued: February, 2011
Revision: 1
Page 8 of 12
4
OPERATION PROCEDURE
Once the MDR is lowered through the drill-floor and the clamp fixed to the Shim Bracket
profile, open the clamp by undoing the Drive Shaft (by hand or air wrench). Place the line(s)
into the bore(s) in the clamp body, close the clamp and tighten Drive Shaft. 50 - 60-ft*lbf is the
maximum torque required to secure the line(s). Over torqueing the Drive Shaft could lead
to damage of the Clamp and/or the Umbilical.
4.1
For Bare Joints:
On all the slick joints the clamps should not be attached to the base until the joint is
suspended at the drill-floor, (has passed through the diverter housing) to avoid any damage to
the clamps. Connection of the clamp to the base should precede attaching the umbilical to the
clamp. The clamp must be secured with the Locking Pin to secure attachment to the
Mounting Bracket assembly.
4.2
For Foam Clad Joints:
These clamps can be permanently attached to the riser joint simplifying the running operation
(if they are inside the outer envelope of the foam). However, they can be removed by release
of the Locking Pin at any time, facilitating servicing or modification of the clamp via its modular
construction.
2013-ABCO-HSDW-200-OMM-01
Operation & Maintenance Manual
HSDW Clamp
Date Issued: February, 2011
Revision: 1
Page 9 of 12
5
REPAIR PROCEDURE / MAINTENANCE
Other than the clamp itself, there are no repairable parts in the clamp assembly. Failure of the
Shim, Saddle or U-bolt will require component replacement.
5.1
Maintenance

Ensure the gate closure Drive Shaft threads remain lubricated with a “molybdenum”
based grease.

Inspect the Clamps after Riser retrieval for damaged, broken, or bent components.

Check threaded parts for worn or damaged threads.
Follow the following steps for replacement repair of the components.
5.2
Repair
5.2.1 Remove the clamp assembly to a safe, clean working environment.
5.2.2 Undo the 3/8” cap screw hinge pin(s) and separate the Gate and Base Bracket.
5.2.3 Remove the ¼” bolts from the top and bottom of the clamp to release the Nitrile Inserts
5.2.4 Punch out the two ¼” Drive Pins in the ears of the Base Bracket, and remove the two
3/8” Dowel Pins to release the swivel nut and Drive Shaft assembly from the Base
Bracket.
5.2.5 Remove the ¼” Nitrile Buttons by pressing them out the bottom of the Base Bracket.
5.2.6 Unscrew the ½” Nylock Nut from the bottom of Solid Drive shaft to remove it from
Swivel Nut. The Cone Washer can be taken off by removing the Retainer Ring under
the washer.
2013-ABCO-HSDW-200-OMM-01
Operation & Maintenance Manual
HSDW Clamp
Date Issued: February, 2011
Revision: 1
Page 10 of 12
5.3
Re-Assemble clamp
5.3.1 Apply anti-galling grease to the clamp closure Drive Shaft threads. Place the Cone
Washer over the end of the shaft with the countersunk side facing away from the head.
Slide the Retainer “O-ring” up the shaft to hold the Cone Washer in place. Screw the
shaft assembly into the Swivel Nut and secure with the ½” Nylock Nut on the bottom of
the Shaft.
Place the Gate Closure Assembly between the two ears of the Base Bracket lining up
the holes in the Bracket and Swivel Nut. Insert the (2) 3/8” x 0.75” Dowel Pins from
either side to secure the gate Closure Assembly. Punch in the ¼” Drive Pins in each
ear to secure the Swivel Nut and Dowel Pins. (See Figure 5.3-1)
5.3.2 Place Nitrile Insert into the Base Bracket aligning the rear cavities of the Insert with the
keys in the Base and gate castings. Apply anti-galling grease to the ¼” x 1.0” bolt
threads, and place a ¼” washer over the bolt. Place the Lanyard of the Locking Pin on
the ¼” bolt and screw the bolt through the Base Bracket into the Nitrile Insert. Only 10
ft-lb required. (See Figure 5.3-1) Note that in more recent clamp models, a separate
lanyard attachment point is provided.
5.3.3 Press the two ¼” Rubber Buttons into the two ¼” holes in the bottom of the Base
Bracket. (See Illustration E)
5.3.4 Repeat step 5.2.2 with a second Nitrile Insert for the Gate Bracket note that the key
system in the gate body ensures correct bore alignment. (See Figure 5.3-1)
5.3.5 Place the Gate Bracket on top of the Base Bracket so that the hinge holes on the Gate
and the Base line up. Apply anti-galling grease to the 3/8” bolt threads, place a 3/8”
washer over the bolt and insert the bolt through the brackets. Place a 3/8” washer and
nylock nut onto the bolt and tighten allowing the brackets to turn on one another. (See
Figure 5.3-1)
2013-ABCO-HSDW-200-OMM-01
Operation & Maintenance Manual
HSDW Clamp
Date Issued: February, 2011
Revision: 1
Page 11 of 12
Figure 5.3-1: Exploded View
2013-ABCO-HSDW-200-OMM-01
Operation & Maintenance Manual
HSDW Clamp
Date Issued: February, 2011
Revision: 1
Page 12 of 12
6
RECOMMENDED SPARES
It is recommended to carry 5% of the operating stock for spares. Spare parts kits are available
to replace damaged parts of the clamps. The kits generally consist of all fasteners, locking
pin, lanyards, swivel nut, and Solid Drive Shaft assembly.
7
WARRANTY POLICY
ABCO Products Inc. stands by every product we make, but in the happenstance that a
problem does occur under normal working conditions API will replace any component that is
found defective in material or workmanship. Replacement parts will be shipped FOB Houston
to the Client’s base of operations.
8
APPENDIX
Project specific data such as assembly drawings and parts list are appended to this document
in PDF format.
2013-ABCO-HSDW-200-OMM-01