Petrofac West Desaru Development

Daya offshore construction was called upon to provide a discrete scope of work as part of Petrofac's West Desaru development offshore Terrenganu, Malaysia. After a successful campaign to recover a section of damaged pipeline, Daya returned for jacket grout seal intervention. At a short notice, Daya provided an efficient engineered solution to both deficiencies, enabling the client to continue with the field development after a minimum of lost time.



BUCKLED PIPELINE REMOVAL

150m of flooded 10* pipeline was cut into manageable sections by saturation divers using Broco cutting equipment. The pipe sections and pulling head were then recovered to the surface.

LIFTING CLAMP INSTALLATION

To prepare for stalk on of the replacement pipeline, saturation diviers installed a series of 10MT lifting divers installed a series of 10MT lifting and stopper clamps, complete with ROV friendly rigging for later recovery by a pipelay barge.

GROUT SEAL INTERVENTION

After a grout seal failure between conductors and jacket legs, divers were deployed to pack out the annulus with timber wedges, supported by custom clamps, to provide a solid base for grouting operations.


Tapis EOR and Telok Gas Development

In 2012, Daya Offshore Construction was awarded a significant scope of work as part of EMEPMI's aggressive rejuvenation project offshore Terrenganu, Malaysia. The work involved the provision of a DP3 vessel combined with manpower, project management and engineering capabilities for Subsea Cable, Riser, and Spool tie-in works. Due to the reliability of the service provided and speed of completion, additional work scopes were added throughout year 2013.

40Km of 4" x 6.9kV power and fibre optic cable, a total of 10 platform preparations, pull-ins, and terminations
Rigid spools ranging from 10" to 18", length from 10-40m
Risers clamps/ guards and J-tubes/Risers to 70m



RIGID SPOOL INSTALLATION

Rigid Pipeline spools ranging from 10' to 16', with lengths to 30m were installed, using DOC engineered procedures and analyses. At 65m water depth, tie in was by saturation divers.

RISER, J-TUBE, AND CLAMP INSTALLATION

Pipeline riser and subsea cable J-tube installation with length to 60m have been completed. Interface with live platforms was key here, as were the innovative methods for securing the platform installation aids such as air tuggers.

SUBESEA CABLE INSTALLATION

A total of 5 subsea cables, with lengths totalling 40km, and 10 platform pull ins, are planned for late 2013 using the Bourbon Evolution 803. In house flex-lay analysis has been carried out using Orcaflex.





Njord A is a semi-submersible platform located in Blocks 6407/7 and 6407/10, around 130 km northwest of Kristiansund and 30 km west of the Draugen field in Norway. As a part of a planned life extension of the Njord A platform, areas of interest with regards to fatigue lifetime were required to be inspected to verify or disprove the presence of fatigue cracking.

The resulting light diving campaign involved CVI and NDT of specific nodes and welded connections at a mean depth of ~14msw, with a maximum diving depth of ~20msw. Suface supplied divers executed the scope of work from "Technip Seahunter" with engineering and dive support from the mother vessel, "Siem Daya 1"



Siem Daya 1

Technip, Njord 'A' Substructure Inspection
Field: Njord A - Norwegian Shelf
Start Date: 04/09/2013
End Date: 22/09/2013
Total Days: 18
End Client: Statoil

Location
Njord A is a semi-submersible platform located in Blocks 6407/7 and 6407/10, around 130km north west of Kristiansund and 30km west of the Draugen field.

Field Scope:
As part of the planned life extension of the Njord A Platform, analyses were carried out, which identified areas of interest with regards to fatigue lifetime. The areas were required to be inspected to verify or disprove the presence of fatigue cracking.

Vessel Scope:
Surface supplied divers were deployed from the LDC "Technip Seahunter" with Siem Daya 1 acting as "mother ship" for engineering and ancilliary support. The diving scope comprised CVI and NDT of specific nodes and welded connections at a mean depth of 14msw, with a maximum diving depth of 20msw.

Laggan - Torrmore Field 18 inch Flowline 2 Damage Investigation
Field: Laggan Tormore - West of Shetlands, UK Continental Shelf
Start Date: 06/10/2013
End Date: 05/11/2013
Total Days: 30
End Client: Total

Location
The Laggan and Tormore gas fields are located in approximately 600 m water depth, and are situated some 125 km north west of the Shetland Islands on the UK Continental Shelf

Field Scope:
After cleaning, gauging and hydro-testing operations, the gauge plate of one of the pigs used to gauge 18-inch FL2 showed substantial deformations. An anchor was found at the damage location and evidence of FL2 being dragged towards 18- inch FL1 was also found.

Vessel Scope:
Siem Daya 1 was chartered to ROV dredge and inspect the damaged pipe section and remove coating in the vicinity. Following this, a UT scan of the damaged pipe section was performed for further onshore analysis.

Asgard Subsea Compression Project
Field: Asgard - Norwegian Continental Shelf
Start Date: 02/03/2014
End Date: 23/04/2014
Total Days: 52
End Client: Statoil

Location
The Asgard field lies on the Halten Bank in the Norwegian Sea, about 200 kilometres off mid-Norway and 50 kilometres south of Heidrun.

Field Scope:
The Asgard Subsea Compression Project has been established to maintain the production rate from the Midgard and Mikkel fields above a critical minimum. To boost production, a Subsea gas Compression Station (SCSt) is planned at the Midgard Field for compression of the Midgard and Mikkel well streams.

Vessel Scope:
  • L-102 Riser Installation to FPSO using VLS 6
  • MEG lines Installation and HCS tie-in using VLS 6
  • MEG Lines RFO (Precomissioning)
  • Y-104 FCG and Hydrotesting
  • SCSt cans grouting

Valemon Power Cable Installation Project
Field: Valemon - Norwegian Shelf
Start Date: 27/04/2014
End Date: 06/05/2014
Total Days: 9
End Client: Statoil

Location
The Valemon field is located between production licence 050 and 193 in the Norwegian Sea. This gas and condensate field lies at a water depth of 135m, approximately 160km west of Bergen

Field Scope:
Various subsea installation work at the Kvitebjorn and Valemon platforms.

Vessel Scope:
Installation and temporary protection of an 11km, 111mm diameter power cable between the Kvitebjorn and Valemon platforms using VLS 6.

Boyla Project
Field: Boyla - Norwegian Shelf
Start Date: 07/05/2014
End Date: Est 01/06/2014
Total Days: Est 25 Days
End Client: Marathon Oil

Location
The Boyla field (previously Marihone) is located in PL340 of the Norwegian sector in the North Sea approximately 30 km South-West of the Alvheim FPSO facility in a water depth of about 125 m.

Field Scope:
Full field EPIC development by a 4-slot manifold with individual wells tied-back to the Alvheim FPSO via 3 flowlines and a control umbilical.


Vessel Scope:
Boulder clearance of the rigid pipeline lay route for Apache 2. ROV TDP monitoring for Apache 2 & other support roles for Apache 2 as required. Installation of 6x flextails by VLS 6. Clump weight and turning bollard installation.

Asgard Project
Field: Asgard - Norwegian Shelf
Start Date: 01/06/2014
End Date: 12/06/2014
Total Days: Est 12 Days
End Client: Statoil

Location
The Asgard field lies on the Halten Bank in the Norwegian Sea, about 200 kilometers off mid-Norway and 50 kilometers south of Heidrun.

Field Scope:
The Asgard Subsea Project has been established to maintain the production rate from the Midgard and Mikkel fields above a critical minimum. To boost production, a Subsea gas Compression Station (SCSt) is planned at the Midgard field for compression of the Midgard and Mikkel well streams.

Vessel Scope:
Fiber Optic cable installation

Gullfaks Project
Field: Asgard - Norwegian Shelf
Start Date: 13/06/2014
End Date: 14/07/2014
Total Days: Est 31 Days
End Client: Statoil

Location
The Gullfaks Sor IOR project is a further development of the Gullfaks Sor, block 34/10-2, in order to increase oil and gas recovery from the Gullfaks Sor field.

Field Scope:
Full EPCI of 4 rigid pipelines, subsea tie-in connections of the rigid spools and two extra Integrated Subsea Umbilicals (ISU), crossings, protection covers close to the subsea structures, pre-commissioning activities, installation of 3 CPI umbilicals , installation of manifold O and P

Vessel Scope:
  • Installation of 2 Manifold (template O and template P)
  • Wet storage of 6 Nearby Protection Structures

BP Foinaven Subsea Power Project
Field: Foinaven - UK Waters
Start Date: 15/07/2014
End Date: 11/07/2014
Total Days: Est 28 Days
End Client: BP UK

Location
The Foinaven field is locate approximately 150 km west of Shetland in blocks 204/19a and 204/24a of the UKCS. Water depths range between 360m and 510m, with 465m LAT water depth for current operation.

Field Scope:
Due to complications with the R12 control umbilical BP is planning to install a replacement in 2014 as a temporary solution. The replacement umbilical is a spare of identical design to umbilical riser R12 and was manufactured by Alcatel(now Nexans) at the same time 17 years ago. The intention is to install the umbilical in the spare R3 umbilical riser turret slot on Foinaven FPSO, which is adjacent to the current R12 umbilical.

Vessel Scope:
  • Installation of riser R3 including DUTA structure and riser jewellery
  • DUTA foundation structure
  • Riser Gravity Base (RGB) structure
  • UDA Structure

SNEPCO (SHELL) - BONGA Accomodation and ROV duties
Field: Bonga Field - Nigerians Waters
Start Date: 15/12/2014
End Date: 19/04/2015
Total Days: 120 Days
End Client: SNEPCO (SHELL)

Location
The Bonga FPSO is located in block 212 in Nigerians water just west of Port Harcourt. Water depths range between 1000 m and 1600m.

Vessel Scope:
  • To provide accommodation for 100 people in support of painting campaign on the BONGA FPSO. Provision of safe transportation of crew with Ampelman and safe keeping and storage of project equipment
  • Support in inspection, survey and deep water lifting operations.

Balder Phase 3
Field: Barents Sea, Norwegian Continental Shelf
Start Date: 14/05/2015
End Date: 09/06/2015
Total Days: 26 Days
End Client: ExxonMobile

Location
The field is located in the North Sea, approximately 190 km northwest of Stavanger. The Ringhorne platform is tied back to the Balder FPSO for processing and export. Balder exports gas to Statpipe via the production vessel, Jotun A.

Vessel Scope:
  • Spool Installation
  • RFO

DBU Subsea Development
Field: GORM Field, Danish Continental Shelf
Start Date: 09/06/2015
End Date: 03/08/2015
Total Days: 55 Days
End Client: Maersk

Location
Gorm is a natural gas and oilfield in the Danish Sector of North Sea that was discovered in 1971. It is the largest oilfield exploited by Denmark. The field consists of five platforms and is operated by Maersk Oil. The facilities include two wellhead platforms and several processing platforms.

Vessel Scope:
Preparatory works for pipe lay, metrology and survey, mattress installation and protection works, pipeline RFO works and finally as laid/as trench/as backfilling.

Hibernia Unit BNA
Field: Hibernia Oil Field, Offshore Newfoundland and Labrador, Canada
Start Date: 03/08/2015
End Date: 11/09/2015
Total Days: 39 Days
End Client: ExxonMobile

Location
Hibernia is an oil field in the North Atlantic Ocean, approximately 315 kilometres (196 mi) east-southeast of St. John's, Newfoundland, Canada, in 80 m of water

Vessel Scope:
  • Installation of flexible jumpers

TSC Installation Phase 1a - Tidal Energy
Field: Pentland Firth, United Kingdom
Start Date: 16/09/2015
End Date: 26/09/2015
Total Days: 10 Days
End Client: Atlantis

Location
Pentland Firth's Inner Sound, a stretch of water separating the Scottish mainland from Stroma.

Vessel Scope:
The project covers the installation of four cables from the shore to a wet store laydown point near the proposed turbine installation sites. The cables are to be pulled through four individual HDD ducts from the vessel and anchored at the shore ends. The cables will then be surface laid to the nominated lay-down points and anchored in position using a DMA.

Siem Daya 2

Asgard Subsea Compression Project
Field: Asgard - Norwegian Shelf
Start Date: 01/03/2014
End Date: Est 11/06/2014
Total Days: Est 102 Days
End Client: Statoil

Location
The Asgard field lies on the Halten Bank in the Norwegian Sea, about 200 kilometres off mid-Norway and 50 kilometres south of Heidrun.

Field Scope:
The Asgard Subsea Compression Project has been established to maintain the production rate from the Midgard and Mikkel fields above a critical minimum. To boost production, a Subsea gas Compression Station (SCSt) is planned at the Midgard Field for compression of the Midgard and Mikkel well streams.

Vessel Scope:
  • Spool HCS tie-in at SCMS
  • Spool Flushing and Leak testing at SCMS
  • Rigid Flowline Dewatering (3off)
  • L-102 Spool and riser tie-in (Icarus and UTIS)
  • Umbilical Anchors Installation
  • Control cable and FOC Installation
  • Y-102 Riser relocation
  • Rigid Flowline Dewatering (1off)
  • Y spools replacement and Tie-in (HCS and UTIS)
  • Umbilical Pull-in

Edradour Project - Pre Engineering Survey
Field: Total - UKCS West of Shetlands
Start Date: 02/07/2014
End Date: Est Est 22/07/2014
Total Days: Est 20 Days
End Client: Total

Location
The Edradour gas condensate field which is located in block 206/4 (P1453 licence) in the West of Shetland area of the UKCS.

Field Scope:
A Conceptual Study was undertaken by TEPUK in 2011, which concluded that the optimum strategy comprised of an initial development of Edradour first but with provision for future upsides. The concept selected includes:

  • A single well development of Edradour (completion of the 206/4-2 exploration well)
  • Installation of a 4 slot manifold at Edradour location
  • Subsea tie-back of production, MEG and service lines
  • Control umbilical extension from the Laggan manifold to Edradour

Vessel Scope:
Survey Operations
Provide detailed bathymetric and geophysical information along the routes and template locations
Edradour to Laggan umbilical route
Edradour to ILT pipeline route
Template locations (Edradour, ILT & Laggan).

Geotechnical Operations
  • Deployment and recovery of the Vibroconer
  • Deployment and recovery of the N5K Core Penetrometer Test instrument
  • Deployment and recovery of the Quad Stack Penetrometer Test instrument
  • Deployment and recovery of the NIOZ corer
  • Core handling and logging

Total - Abandoned Wellhead Inspection Survey
Field: Total - Heidal Field Norway
Start Date: 25/07/2014
End Date: Est 30/07/2014
Total Days: Est 5 Days
End Client: Total
Mobilization Peterhead Scotland
Demobilization Haugesend Norway

Vessel Scope:
  • Visual inspection and survey of RIND temporarily abandoned wellhead 25/2 - 13 and associated subsea assets
  • Visual inspection and survey of BYGGVE temporarily abandoned wellhead 25/5 - 4 and associated subsea assets

Halul Island Power Cable
Field: Qatar Petroleum
Start Date: 25/10/2014
End Date: Est 10/01/2015
Total Days: Est 80 Days
End Client: Qatar Petroluem

Location
Halul Island lies 300km east of Ras Laffan port in Qatar.

Field Scope:
Installation of 2 x 101km submarine cables from Ras Laffan to Halul Island to upgrade the power supply to Halul Island to meet the future additional power requirements.

Vessel Scope:
  • Installation of 800 protection and stabilization concrete mattresses. Mid-cable jointing.

Quad 204 - Deployment of RT17-F17
Field: Quad FPSO-E, United Kingdom
Start Date: 26/03/2015
End Date: 06/07/2015
Total Days: 102 Days
End Client: BP

Location
Located West of Shetland in the UK

Vessel Scope:
  • Installation of 16 No. Flexible Jumpers utilizing Aquatic Reel Drive System, Deck Tensioner & over boarding chute
  • Installation of Controls Distribution Assembly (CDA) Structures, 80t Each

Snohvit - Spool Installation and RFO
Field: Snohvit Field, Norwegian Continental Shelf
Start Date: 06/07/2015
End Date: 25/08/2015
Total Days: 50 Days
End Client: Statoil

Location
The Snohvit development comprises three fields - Snohvit, Albatross and Askeladd. These lie in the Barents Sea, about 140km north-west of Hammerfest in northern Norway. The fields were discovered in 1984 in 250-345m of water and extend across seven production licences.

Vessel Scope:
  • Spool Installation
  • RFO

Quad 204
Field: West of Shetland Quadrant 204, United Kingdom
Start Date: 25/08/2015
End Date: Present
Total Days: Approx 40 Days
End Client: BP

Location
Located West of Shetland in the UK

Vessel Scope:
  • Installation of 2 No. of structures
  • Flexible jumper leak testing offshore