Case Studies
In this section: Learn more about how Claxton helps operators all over the world meet the challenges posed by their projects.
23.11.12
Claxton's vast experience of wellhead system design, installation and maintenance is proving invaluable in helping one of the North Sea's leading operators to manage the integrity of a selection of older platform wells whose original construction left something to be desired, at least by today's standards...
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23.11.12
There are serious doubts about whether King Arthur's Camelot ever really existed. In contrast, the UK North Sea gas fields and production platform of the same legendary name certainly did, though the evidence is disappearing rapidly....
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07.09.12
Since 2005 Claxton, with sister companies from Acteon, have been involved in the conception, design, fabrication and installation of CoSMOS platforms. CoSMOS provides minimum facilities wellhead platforms that are supported on well conductors....
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18.06.12
A UAE-based rig builder put Claxton's flexibility to the test recently when it asked the company to provide modified riser tension systems for two new jackup drilling rigs at very short notice...
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19.09.11
Claxton Engineering has developed a new hydraulically operated riser-handling tool that helps users to run subsea and surface drilling risers more quickly and with greater safet...
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16.06.11
Subsea 7 approached Claxton when it had the job of retrofitting centralisers in a number of subsea conductor guides beneath two platforms for an operator in the Norwegian sector of the North Sea. The project was in response to various challenges connected with the inaccurate positioning or slippage of the original centralisers...
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18.05.11
When conventional, manually operated riser-handling tools appeared incapable of fully supporting a particular drilling riser system that one of our clients was installing, it was time for Claxton to go back to the drawing board. In response, we initiated an intense in-house development program to create an innovative hydraulic tool...
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13.09.10
During a workover a land-well client encountered cement higher than expected in the casing strings. The only solution would be to drill out the cement and re-run the 10.3/4" and 7" casing. Budget constraints meant a rig would be out of the question for the job - so Claxton had to designed a system to pull and run the casing riglessl...
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03.06.10
Claxton was recently contracted to supply five complete Wellhead systems for a major gas storage project in the United Kingdom - a project that started out as a typical Wellhead design and supply job... until the client was forced to bring the delivery schedule forward by nearly a month...
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12.12.08
A client needed to recover 5000 meters of tubing from a total of five wells. They chose Claxton to provide skilled service technicians and a bespoke recovery system - our expertise saved them significant amounts of time and mone...
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12.12.08
A client had seven Xmas trees to install as part of the Callanish and Brodger Field development program. MultiCam was used to aid the installation of the Xmas trees and obtain the viewing angles required not available via conventional means....
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12.12.08
Qatar Shell GTL asked Claxton to mobilize one of our fleet of Camscan TM subsea camera systems based at Doha to carry out a visual survey in the NFP 1-1 well, 13 3/8" mudline suspension Hanger area at +/- 250' below the drill floor....
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12.12.08
Claxton designed a Slimline Tension Ring in order to add flexibility and save time for clients...
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09.02.09
A major operator asked Claxton to provide technical advice and guidance for design, specification, manufacture and supply of a subsea protective structure to protect subsea distribution and umbilical termination assemblies for the East Davy Field. Claxton completed the project ahead of time, and on-budget...
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05.03.09
Claxton was asked to provide technical advice and guidance for the design, specification and manufacture of a cement top up system to reduce lateral deflection in a 30" conductor in the Nemo field...
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06.03.09
Claxton designed an Annuiar Sealing Unit (ASU) to solve a complex cementing problem on the South Arne field resulting in a successful remedial job for the client...
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09.07.09
In 2007 Claxton worked with a major operator in Norway to provide an application specific custom subsea hot tapping machine. The operator needed to insert a hot tap tee to connect a new pipeline link - a critical-path operati...
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30.07.09
Claxton was responsible for the first-ever rigless abandonment in the North Sea - and since this landmark operation we have developed a suite of tools to support cost effective decommissioning. Claxton has used these tools on many of the world's most significant abandonment campaign...
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21.09.09
Claxton recently provided a sub-sea hot tapping solution in the Brent field, including a machine rated for 10,000psi safe working pressure. The Hot tap operation was to drill at a water depth of 140 metres into 8" OD Flowlines which were a Duplex 23% CR material and 10" OD Flowlines which were a carbon steel grade X-65 material. The flowlines had a protective polyurethane coating which was removed prior to the drilling operation...
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21.09.09
Claxton's long heritage of supplying risers - and our large call-off inventory - means we are often uniquely placed to deliver quickly. Find out how we were able to supply a high pressure riser at short notice for a high-profile water injection project....
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21.09.09
Claxton has one of the largest stocks of drilling riser assemblies and associated tools in Europe. This large inventory, combined with fast-track engineering and mobilisation has seen us lead the way in riser supply....
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06.10.09
Claxton enjoys a fine reputation for coming up with highly effective engineering solutions, often within very tight deadlines. The company is strongly inclined towards practical and reliable designs, but at the same time is not afraid to challenge conventional thinking...
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10.02.10
Claxton developed a novel method to recover a potentially challenging tieback riser - resulting in a successful recovery....
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10.02.10
MultiCam provides high quality visual performance in a compact, low cost camera system. In this case study a North Sea operator used MultiCam to verify an installation in conditions that would defeat an ROV...
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