我们的项目案例

Noble Valiant Crown, Turndown Sheave and Crane Ram Change-Out

Noble Drilling

DSL supplied an IRATA rope access rig-building team to Noble Drilling's drillship Valiant to remove and reinstall the crown assembly and 16 turndown sheaves and change out the NOV knuckle boom crane rams.

Turndown sheaves removed and refitted

Work scopes delivered

Ram Rig Structure Splitting and Reassembly

Drilling vessel operatorLas Palmas, Canary Islands

DSL rig builders split a drilling vessel's ram rig structure so it could transit the Bosphorus into the Mediterranean, then reassembled it in Las Palmas so the client could commence drilling operations.

Repsol Sinopec, Beatrice Alpha Derrick Removal

Repsol SinopecNorth Sea, UK

DSL began removing a redundant 147 ft derrick from Repsol Sinopec's Beatrice Alpha platform in the North Sea, taking down the top 63 ft and associated equipment without a crane and without any LTIs.

147 ft

Derrick height

63 ft

Removed in first phase

Crane lifts required

RFID Asset Tagging Across a Middle East Rig Fleet

Large rig operator in the Middle EastMiddle East

DSL tagged key assets on several rigs in the Middle East with RFID and loaded them into RigCentral, giving a large rig operator full visibility of documentation, expiry dates and maintenance records.

Spirit Energy, DP6 and DP8 Simplification Project

Spirit EnergyMorecambe Bay, Irish Sea, UK

Under a £24m EPC contract, DSL simplified process and control systems and carried out structural repairs and partial topsides decommissioning on two Morecambe Bay NUIs, removing over 500 tonnes of scrap steel.

£24m

EPC contract value

500+ t

Scrap steel removed

300,000+

Man-hours without LTI

ConocoPhillips Viking Vulcan, Decommissioning Pre-Works and Removal Support

ConocoPhillipsSouthern North Sea, UK

DSL delivered two decommissioning packages on the Viking Vulcan gas assets, preparing them for lighthouse mode for ConocoPhillips and supporting Boskalis as 7 jackets and 4 topsides were removed in 2019.

Jackets removed

Topsides removed

90,000+

Man-hours without incident (operator package)

CTF Tunisia, Drilling Package Decommissioning, Upgrade and Reinstallation

CTF, on behalf of operator SereptOffshore Tunisia

For CTF and operator Serept, DSL decommissioned the drilling package, power generation and mud treatment package from Platform 5 offshore Tunisia, upgraded them onshore and hooked them up on Platform 06, through to DNV certification of the drilling systems.

Packages decommissioned and upgraded

Work scopes delivered

DNV

Drilling systems certification

EnQuest Thistle Platform, Exhaust Stack and Support Tower Installation

EnQuest, via Wood Group PSNNorth Sea, 218 km north of Shetland, UK

For Wood Group PSN and EnQuest, DSL trial assembled a new gas turbine exhaust stack and support tower at Montrose, then installed it by rope access on the Thistle platform in the North Sea with no incidents.

Incidents offshore

Perenco Inde 49/23 Alpha Integrity Improvement

Perenco UK LtdSouthern North Sea, off East Anglia, UK

DSL delivered fabric maintenance, construction and redundant equipment removal on Perenco's Inde 49/23 Alpha platform in the Southern North Sea, completing over 130,000 man hours without incident on a £4.7m contract.

130,000+

Man hours without incident

4,500+

Rope access hours

£4.7m

Contract value

Hidden Corrosion in Hollow Section Members on Dreco Jack-Up Derricks

Jack-up rig owner

During periodic inspection, DSL identified through-thickness internal corrosion in hollow section members on Dreco derricks on jack-up rigs, with one structure found to retain only 40% of its original design capacity.

40%

Remaining design capacity

Early 1980s

Build era of affected derricks

10+ years

Age at which thickness checks are recommended

陆地钻井

Halliburton Land Rig Inspection and Survey Contract, Indonesia

HalliburtonIndonesia

Under a two year contract, DSL delivers rig surveys, API 4G inspections, lifting gear recertification and RigCentral based maintenance management across 4 to 5 Halliburton land rigs in Indonesia.

2 years

Contract duration

4 to 5

Land rigs supported

Work scopes delivered

Dreco Slingshot Rig, Fast-Track A-Frame Replacement

Dreco Slingshot rig operatorSingapore

After a customer damaged the A-frame cantilever legs on a Dreco Slingshot rig during rig up, our Singapore workshop surveyed, designed and fabricated API 4F replacements ready for delivery within 15 days of the initial survey.

15 days

Survey to parts ready for delivery

API 4F

Fabrication specification

Weatherford Pipe Handling Retrofits on Jack-Up Derricks

Weatherford

Working with Weatherford, DSL engineered, supplied and installed derrick modification kits and the Iron Derrickman racking system on the ENSCO 71 and Transocean Monarch jack-ups, and designed and fabricated new automated racking boards.

Jack-up derricks retrofitted

Rigs in upgrade programme

Failed Offshore Crane Boom, Emergency Make-Safe and Dismantling

Offshore installation operator

After an offshore crane boom snapped at its base, DSL designed temporary supports and a portable lifting device from scratch, then safely secured and dismantled the 136 ft boom without any supporting crane.

136 ft

Failed crane boom dismantled

2 t

Unsecured block and hook made safe

Supporting cranes available