Derrick Services Limited (DSL) is UK based with worldwide range, and supports the upstream sector of the industry for all services associated with offshore and onshore drilling structures. Services are provided by in-house resources and include, but are not limited to, drilling structure design, manufacturing, construction, upgrade, repair, re-certification, inspection, assembly and modification.
As the industry’s leading drilling structure specialist, DSL’s success is based on an impeccable work ethic and our priority on retaining and expanding our customer relationships through engineering integrity, quality of product and service, supply of positive and productive offshore/site personnel, safety of our operations, speed of response and flexibility. In support of this philosophy, we have a strong and experienced management team with a wealth of knowledge and practice that spans over 30 years.
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DSL offers comprehensive in-house engineering resources for all electrical, mechanical and structural engineering tasks, supported by the latest design software.
- FABRICATION FACILITIES
Our manufacturing projects range from general fabrication of deck extensions and subsea templates to specialist fabrication of drilling derrick/rig modification kits.
- TRAINING ACADEMY
DSL’s state-of-the-art API-U, OPTICO and IADC approved Training Academy ensures that our specialists perform to the highest standards of competence and safety.
DSL is a leading world authority in the decommissioning of platform installation drilling packages, with an impressive record of successful platform decommissioning projects.
- DERRICK ASSEMBLY
We provide a wide range of derrick assemblies for shipyards, derrick manufacturers, drilling contractors, main contractors and operators at any location, worldwide.
- DERRICK CMC INSTALL/REMOVAL
DSL is the most experienced, competent company for CMC installation/removals. We continually enhance services for various models and makes of CMCs.
- DERRICK / OTHER EQUIPMENT UPGRADES
For over 30 years, we have upgraded, repaired, re-certified and inspected almost every type of structure, regardless of manufacturer, design or location.
- DRILLING PACKAGE UPGRADES & REFURBISHMENT
DSL upgrades and refurbishes drilling packages for drilling contractors and operators, worldwide, with turnkey results.
- RIG BUILDING CREWS
DSL employs API certified rig building crews all over the world – erecting, outfitting, decommissioning, extending and modifying derricks.
- ROPE ACCESS SERVICES
We are an ISO accredited, IRATA-approved company, providing diversified rope access technicians for offshore and onshore requirements, worldwide, with an unsurpassed safety record.
- ASSET INTEGRITY / FABRIC MAINTENANCE
DSL provides outstanding offshore production facility maintenance, distinguished by industry-setting safety benchmarks and cost savings.
DSL has managed decommissioning projects on a variety of installations including FPSO and MODU fixed platforms.
- ASSET SIMPLIFICATION
We provide asset simplification of older installations with efficiency, and reduced cost on smaller installations such as Southern Sector gas platforms.
- API CAT III & IV DERRICK INSPECTIONS
DSL derrick inspectors are qualified by API approved training for API 4G drilling structure inspections.
- DRILLING STRUCTURE RECERTIFICATION
We provide recertification of derricks and masts/substructures, from survey and engineering through installation of replacement parts.
- DROPPED OBJECT SURVEYS
DSL is a leading provider of comprehensive Dropped Object Surveys and associated support services. We offer an outstanding record of rig safety enhancements.
- LIFTING GEAR INSPECTION
Our comprehensively trained engineers provide periodic inspection on all cranes and lifting equipment.
- PRV CALIBRATION AND TESTING
DSL provides drilling contractors with an on-site testing and calibration service for Temperature Units, Pressure Units and similar equipment, to ensure compliance with international codes and manufacturer’s recommendations.
- RIG CONDITION SURVEYS
DSL conducts land rig inspections, condition surveys, rig selection inspections and audits worldwide.
- CASING STABBING BOARD
Our DSL Casing Stabbing Board for onshore/offshore rigs meets the highest standards of installation and operation. This product offers durability and maximizes space.
- DERRICK BOLTS
After periodic re-torquing, derrick bolts can fail. DSL supplies and installs replacement derrick bolts according to your rig’s specifications.
- DERRICK & DRILL FLOOR WINDWALL CLADDING
DSL has designed and installed a wide variety of bespoke (custom) windwalls for derrick and drill floors, as well as heat shield cladding.
- DERRICK & LAND RIG ACCESSORIES
At our facilities in the UK, we are constantly building replacement accessories for our customers, ranging from racking boards to hydraulic cylinders.
- DRILLING DERRICKS
DSL offers over 25 years of experience designing and manufacturing Dynamic and Static Derricks, along with Folding and Telescoping Masts of every configuration, at our API approved facilities.
- GUIDE RAILS & BRACES
We manufacture new rails and braces, remove the older ones from your equipment, then install and align replacement parts according to the required TD manufacture’s tolerances.
- MASTS & SUBSTRUCTURES
DSL designs and manufactures a variety of mast and substructure configurations to fit variable specifications and climates.
- MASTS & SUBSTRUCTURES FOR DESERT RIGS
Our customized upgrades to existing rigs result in quicker moves, less downtime, safer operations, and improved operation and performance.
- REPLACEMENT MASTS FOR CARRIER RIGS
DSL has designed a unique new range of API rated drilling masts for 250lb to 500,000lb hook load capacity carrier, for trailer workover and drilling rigs.
- WORKOVER MASTS & SUBSTRUCTURES
DSL offers a range of masts and substructures for workover rigs and drilling rigs – ranging from 150lb to 500,000 lb hook load capacity.
- RACKING BOARD ASSEMBLIES
DSL continually builds replacement racking boards and support frames for every type of drilling structure, from trailer rigs through large offshore derricks.
- REPLACEMENT DERRICK MEMBERS
As an API 4F licensed company, DSL is qualified to replace damaged, corroded or worn braces and girts without compromising the integrity of your structure.
- API 4G CATEGORY I & II E-LEARNING
Our drilling structure inspection training provides fundamental inspection skills for rig personnel to ensure critical monitoring worldwide.
- RIG INSPECTION & ASSET DATABASE SOFTWARE
Our state-of-the-art RigCentral© software ensures efficient, comprehensive access to all of your inspection reports and data from one system.
- CTF TUNISIA
DSL was contracted for, and successfully completed, a major offshore and onshore project in Tunisia. This remote site required DSL’s extensive resources and sophisticated delivery infrastructure. The scope of work encompassed decommissioning and dismantling the derrick equipment set, the power generation and mud treatment package from platform 5, an onshore upgrade and refurbishment program, as well as the installation, outfitting and commissioning from offshore North Africa to platform 06.
- DSL SINGAPORE FAST RESPONSE
Our Singapore fabrication facility was recently contracted to provide emergency repair for a customer that had experienced significant damage to their A-Frame/Cantilever Legs on a Slingshot Rig during rig up. We immediately dispatched a survey crew to assess the damage and establish a full scope of work to get the rig up and running. After creating the necessary engineering drawings, we commenced the fabrication and machining of the replacement A-Frames according to API 4F specifications. Our Singapore workshop personnel turned this around in record time. The new parts were ready for delivery within 15 days of the initial survey, without any compromise to quality. The subsequent installation was a complete success.
- HALIBURTON RIG CONDITION SURVEY
Halliburton engaged in a two-year contract with DSL to carry out a variety of inspection, survey, and associated services on four land rigs in Indonesia. This contract provides a perfect case study of the range of services that DSL can offer our clients in the evaluation of rigs, auditing of operational systems and requisite certification. We conduct these services while providing the management support to ensure that certification of equipment and plant is current. This Halliburton project included 12 related steps – beginning with a rig assessment survey for each rig move, all the way through troubleshooting and maintenance. We used RigCentral software to manage and monitor all of these services and inspections from one location, with alerts provided whenever recertification of any particular component or systems was due.