We are currently working with industry-leading companies across many different sectors to achieve their project objectives on-time-on-budget. The following case studies provide a brief insight into both our many services and how they were successfully delivered.

ENGINEERING DESIGN & CONSULTANCY

Design and Manufacture of Conductor Restraining ‘Spider’ Clamp

  • Concept design
  • FEA & calculations
  • Project management
  • Installation and operational procedures
  • Designed and manufactured
  • Onshore trials

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Air Reels & Sheaves Rental

  • Air Driven Reels
  • Hydraulic Driven Reels
  • Sheaves (2te & 5te)
  • Umbilical Reels
  • Umbilical Reels Spreader bars
  • Over boarding Chutes
  • Design & Manufacture Reels & Sheaves Mobile HPU’s

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North Sea E&P Operator
Conductor Multi-Purpose Cleaning Tool Including Inspection

SengS was contracted to design and manufacture multi purpose conductor cleaning and inspection tool. The tool was designed to open and close during deployment to overcome anode clamps that were connected along the length of the conductor.

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Dsv Service Company
Conductor Emergency Pinning and Clamping

SengS was contracted to design and manufacture a conductor pinning tool c/w dual rota-broach drills and Pins. The reason for pinning the conductor was to retain until a permanent solution was engineered due to the integrity of the conductor I.e conductor potential failure (25te) to shear and cause damage to a gas pipeline that was routed below.

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Nexen UK
Emergency Temporary Caisson Restraints

Nexen Petroleum contracted Bibby Remote Intervention Limited (BRIL) to carry out emergency temporary restraining to Scott UQ Platform caissons. SengS Subsea Engineering Solutions ltd where subsequently contracted to produce detailed design and onshore and offshore engineering support. SengS designed two types of restraints and pin designs which were designed, FEA analysed and manufactured within 6 days.

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Centrica Energy
Sevan Hummingbird FPSO Chain Inspection

SengS Subsea Engineering Solutions ltd were contracted by BRIL (Bibby Remote Intervention Ltd) on behalf of Centrica Energy Ltd to carry out inspection works on the Sevan Hummingbird FPSO 2013 Mooring lines.

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Dana Petroleum
Umbilical De-commissioning

SengS Subsea Engineering Solutions were contracted by Enviroco on behalf of Dana Petroleum to conduct Flushing/Pigging and Cutting operations of the Triton umbilical approximately 2.4km in length.

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Hydraulic Design and Maintenance

Assembly & Testing of a 3 Station Subsea Distribution System

  • Orbital welding, over 1100 weld joints
  • SS316, duplex and super duplex orbital welding
  • Assembly of control systems (hydraulic, chemical and electrical)
  • Pressure testing and flushing operations
  • Full SIT & FAT trials
  • Project management and QA/QC

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ConocoPhillips
ICV Control Panel

SengS Subsea Engineering Solutions ltd were contracted by Conoco Phillips to design, manufacture and commission a Interval Control Valve Panel (ICV). The ICV panel consisted of stainless steel frameworks with engraved Flow diagram on the control panel interface. The unit is designed with bottom forklift pockets and additional M8 swivel joints lifting point all manufactured in accordance with the relevant industry standards.

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Nexen Petroleum UK
Emergency Temporary Repair to Scott UQ Platform C6 Caisson

SengS were contracted by BRIL (Bibby Remote Intervention Ltd) on behalf of Nexen Petroleum to carry out emergency temporary repair to Scott UQ Platform C6 Caisson which had perforations identified just within the water line/splash zone. The initial workscope was to secure the C6 caisson by installing temporary rigging which was conducted by the SVROV Reef Despina WROV.

SengS engineered and conducted offshore engineering operations on behalf of BRIL.

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Fabrication and Assembly

Conductor Offshore Instrumentation & Mechanical Installation

  • Instrumentation fit out
  • BOP control system fit out
  • Pressure testing activities
  • Process equipment fit out
  • Offshore technicians

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Dsv Service Company
Umbilical Reels and Lift Beams

SengS was contracted to design and manufacture a 4.2m x 3.2m diameter umbilical reel, li beam and support cradles. The complete project was conducted in 6 weeks – concept, detailed design and fabrication.

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Dsv Service Company
Mooring Chain Inspection Tools

SengS was contracted to design and manufacture mooring chain inspection tools. Three tools were designed; go-no-go gauges, chain measurement tool and scanning measurement tool. In addition, to optimise the WROV a subsea basket was designed & manufactured andboltedtotheframeoftheROVtoallowthe tools to be stored and changed out subsea.

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North Sea E&P Operator
20-inch Caisson Repair Sleeve and barrier

An Offshore platform 20inch outer caisson sheared at EL-17m, SengS were contracted to design and manufacture 20inch cassion restraining sleeve which was to realign the two sections of caissons and also capable of sealing to 7 barg differential pressure.

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Testing Services

Hyperbaric Testing Services for Downhole Tool

  • Development of qualification test procedure
  • Conducted hyperbaric testing
  • Temperature +220degC
  • Test Pressure 20,000psi
  • Electrical & Hydraulic tool functionality during test conditions
  • 6.5m length & 0.17m ID hyperbaric test chamber

Download Case Study | Our Hyperbaric Testing

Centrica Energy
Site integration Testing (SIT) – TDU / subsea X-tree interface checks

SengS was contracted by BRIL (Bibby Remote Intervention Ltd) on behalf of Centrica Energy to carry out WROV valve and stab plate removal operations within the Trees field. As part of this campaign and prior to mobilisation SengS conducted a full system Integration test (SIT) of the TDU(Tool deployment unit) to LMV valve and Stab plate interfaces of the subsea X-tree.

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Site Services

Asset Inventory

SengS was contracted to carry out a specialist detailed inventory and identification exercise on asset spares for a global Oil & Gas company based in Aberdeen. The scope of works included capturing unidentified and or unchecked asset spares information such as; description, material/part numbers (where available), quantities, item condition. Individual photographs were taken and hyperlinked from the inventory list for visual reference.

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Centrica Energy
IRM Campaign 2013

SengS was contracted by BOL (Bibby Offshore Ltd) on behalf of Centrica Energy Ltd to carry out IRM works on the Tree’s Field. The field consists of the Birch, Larch and Sycamore subsea assists tied back to the Brae Alpha platform.

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Centrica Energy
Mallard Well Scale Squeeze

SengS Subsea Engineering Solutions designed, engineered and conducted offshore operations on behalf of BRIL. This included but was not limited to; schedule, method statements, deck plans, sea-fastening calculation package and project specific operational procedures.

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Premier Oil
Solan Boulder Recovery Works

SengS were contracted by BRIL (Bibby Remote Intervention Ltd) on behalf of Premier Oil to carry out boulder recovery operations on the Solan development.

The Solan field contained a large concentration of boulders on the seabed. Some of these boulders were located in and around the proposed locations for the Solan facilities such as the; line Pipe Route, Jacket and Tank that are to be installed in the future. The boulders were required to be relocated to a suitable location nearby on the seabed.

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