Subsea Tooling Services UK LtdEngineered Subsea Solutions

© Subsea Tooling Services UK Ltd 2017

Subsea Baskets Project Tooling HPU’s Clump Weights

Large range and

sizes of baskets

available

Design,

manufacture and

deliver complex

solutions in a short

lead time

Tool testing Tailored sizes

available

Dredgers

Supplying our

clients with

advanced subsea

dredgers

Who we are: Subsea Tooling Services -

What We Do

STS have created a unique fleet of high Performance Subsea

Tooling Packages, our Dredging equipment which is not only

designed and manufactured to the highest quality and safety

standards but has also been field proven over the last three years

on over 220 projects.

Furthermore STS specialize in providing project solution based

engineering to our clients, focused primarily on IRM we work

together with our clients delivering “Fit for Purpose” tooling

solutions that work first time.

To compliment the above ethos, STS has created a subsea tooling

package to address specifically the removal of subsea control

umbilical's in a safe, efficient and environmentally friendly

manner.

Introduction

Umbilical Removal/Replacement

Historically the majority of offshore production platforms were

manufactured with a number of “J” Tubes fixed within the platform

jackets. These tubes provided the conduit for subsea production umbilical's,

power lines and various other services.

Due to either the age or unserviceability of some of these umbilical's and a

need to add more control capabilities subsea, there is now a requirement to

replace some of these umbilicals.

STS has developed a subsea tooling system which allows the removal of

these umbilical’s and/or services using a safe, controlled and efficient

method. The system consists of our Umbilical Removal tool, 360o Subsea

Hydraulic Winch, Intelligent Subsea Control Valve Pack, Project specific

Dredging Tools and Hydraulic Support equipment

Dredging

➢ A full range of ROV / Diver operated hydraulically powered dredging tools

➢ Sizes from 3” to 12”

➢ Dredging rates from 22 to 150 tons per hour

➢ Accessories configured subsea with no need for dredge recovery

➢ Universal ROV interface mounting frame

➢ Option DNV 2.7-3 stand alone deployment frame

➢ Utilizes innovative fluid dynamic technology

➢ Available with our in house designed Intelligent Dredging System (IDS)

➢ 3” to 8” sizes can be driven from ROV DWP

➢ 10” & 12” versions driven from surface HPU

Umbilical Removal Tool & IVP

➢ Design for various sizes of umbilical’s

➢ Accurately applied pulling force using IVP

➢ Controlled by existing STS Intelligent Control System

➢ Accuracy through hang off design from FRP

➢ Multiple Hot-Stab capability

➢ ROV/Diver friendly

➢ Pulls the umbilical without damage to outer cover

➢ Flying reaction plate can be configured for various bell-mouths

➢ Weights 140 kg in water

➢ Rated to 3000msw

Subsea Winch

➢ Purpose built winch base c/w mud mat

➢ 15T, 30T & 50T options

➢ Base frame c/w 360o slew ring

➢ Frame 65T loading capability

➢ ROV/Diver friendly

➢ Level winding as standard

➢ Multiple Hot-Stab capability

➢ Controlled via STS Intelligent Winch System

➢ Precision pulling control

➢ Safely lays out umbilical on sea floor

➢ Can be configured with additional clump weights

➢ Manufactured in accordance with DNV 2.7-3

Project Overview

PROJECT DETAILS

Client:

Tier 1 Subsea Contractor

Location:

UK, Central North Sea

Equipment:

30 T Subsea Winch c/w IWS

STS Umbilical Removal Tool

T12” Titan Dredging Unit

T8” Predator Dredging Unit

Ancillary Equipment

Water Depth:

85msw

Project description:

➢ Provided all Dredging, Specialist

Umbilical Removal Tool (URT) and

Subsea Winch equipment and

personnel to assist with the removal of

the Umbilical.

➢ Included all subsea and topside

ancillary equipment and tooling

required.

➢ A FAT & SIT were carried out at an

onshore facility in Oldmeldrum with a

full size bellmouth, frame and

umbilical.

➢ The removal operations were carried

out in two stages. The subsea dredging

was completed in the first phase

followed by the removal operations

concluding the work scope.

➢ The Umbilical was to be removed

while pressurised and in a manner,

that would guarantee no damage to

the external umbilical sheath.

Conclusion:

Subsea Tooling Services Dredging,

Specialist Tooling and Subsea Winch

technology was utilised to access,

remove and layout on the seabed the

Production Controls Umbilical in a

safe, controlled and undamaged

manner

The benefits:

➢ Project successfully delivered as planned

➢ Experienced personnel with an impressive

track record in subsea projects worldwide

➢ Robust tooling for use in subsea environments

➢ Proven Technology

➢ Fully compatible for ROV & Diver use

Subsea Hydra

➢ Subsea Multi Tasking Solution

➢ Hydraulic Power & Distribution Package

➢ Surface Control System

➢ Valve Pack Delivers Various Flows & Pressures

➢ ROV/Diver Friendly

➢ Deployed by Vessel Crane or Dedicated LARS

➢ Multiple Hot-Stab Capability

➢ 110 kW Subsea Motor & Pump (150 liters of Fluid)

➢ Two of 2 Ton Winches

➢ Multi Functional Hose Reels – Power Retracted

➢ HP Air Capability – Saves Diving Gas

➢ HP Water Jetting 690 bar @ 30 lit/min

➢ Add in Subsea Sampling Capability

➢ Manufactured in accordance with DNV 2.7-3

Innovation – Q3 2017

www.subseatoolingservices.com info@subseatoolingservices.com

Phone: 01651 872273

Unit 4, Oldmeldrum Business Centre, Colpy Way, Oldmeldrum, AB51 0BZ

Questions?