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Trio OilTec ServicesTrio OilTec Services


Our Processes

We are your life-prolonging factor


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Hardbanding technologies


  • Drill pipes Hardbanding
  • TTRD Application example


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We are proud to present our broad range of hardbanding services that ensure we remain worldwide market leaders. Working in close cooperation with Castolin Eutectic, we have pioneered a range of welding consumables which allows us to protect your drill strings with unparalleled success. These include the welding consumables OTW-12Ti and OTW-16XS, plus the patented PTA overlay MX5. We are also an approved applicator of Arnco materials. Working closely with our Total Tubular Management partners in Stavanger, we are able to provide complete logistics and inspection services for your drill pipes. Our corner stone of this offer is a fully automated, four station handling, preparation and welding facility for large volume production and perfectly controlled quality. Owing to our unrivalled experience in diverse downhole conditions with a variety of hardbanding materials, we are in a unique position to advise operators, drilling companies and rental companies the optimum solution to their hardbanding requirements.


Through Tubing Rotary Drilling (TTRD)

Current technology allows only a 20% to 70% recovery rate for oil wells and 60% to 80% for gas wells. Therefore, major oil companies attempt to exploit oil fields at maximum capacity with conventional sidetracks, but also “drill” in other directions using new drilling technologies. Since the cost of conventional sidetracking can be prohibiting, our specialists use a technology called TTRD (Through Tubing Rotary Drilling), where you actually drill though your production system, impossible under normal circumstances. By using this technology you drill through the well wall in the area where you have your identified patches and reach the oil, so that production can start immediately after retracting the drilling equipment. Trio OilTec Services started the collaboration with Statoil, developing and testing Trio MX5 to protect drilling equipment and well construction. The result has been impressive: Statoil was able to drill a world record 1744m 5 ¾” TTRD sidetrack in one of the most abrasive formations in existance in the North Sea. Another achievement was marked by the development of a pressure control system to enter the well and enable drilling the TTRD sidetrack with a fraction of the usual operations cost.


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Coating technologies


  • Thermal Spraying
  • HVOF
  • Spray & Fuse
  • Eutalloy thermal spraying
  • Laser cladding
  • Selective Plating


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Thermal spraying

Trio OilTec Service is also a leader in thermal spray and related coatings technologies. In contrast to welding and other hot processes, these are applied “cold” to your components and give therefore minimal distortion. Thermal spraying allows coatings of high performance materials such as metals, alloys, ceramics, cermets or carbides to be applied to relatively easy-to-work and more economical base materials. The various coating processes can offer tremendous improvements in component performance such as wear, heat, oxidisation and corrosion resistance. Thermal spray is also widely used in the reclamation of damaged or worn components, offering a cost-effective alternative to buying new replacement parts. Treated parts often last up to twenty times longer than the original.


Our cutting-edge spraying equipment is constantly updated to always stay ahead of the field and includes a third generation HVOF system. Castolin Eutectic has recently launched a new CJK5 High Velocity Oxy Fuel unit, that operates with kerosene. This new development features many design improvements that simplify the user interface, while maintaining outstanding coating quality.

Spray & fuse coatings

Cold spray process at supersonic particle speeds for maximum mechanical bonding means aeronautic quality coatings available at industrial prices. A variety of materials and superhead carbides can be applied in thin layers.

Thermal spray with subsequent fusing (Eutalloy)

The Eutalloy process applies protective, surface engineered coatings on industrial machine parts subject to wear in order to prolong their service life performance. A wide range of Eutalloy selffluxing, powder alloys may be sprayed, fused and metallurgically bonded using the latest SuperJet -S- delivery system. Independent approvals and extensive field tests assure new quality standards for spray fusing performance, power and precision in the fields of preventive maintenance and repair applications.

Laser cladding

The laser coating process is one of the cladding processes which is used to fuse a desired alloy on a substrate material. The clad material may be similar to the substrate material in the case of repairs and rapid prototyping. The clad material may have a higher performance to offer enhanced corrosion resistance or wear resistance to protect a multitude of components. In the laser coating process, the filler alloy in powder form is injected into the laser beam, sprayed and welded onto the component in a one single step. This process uses a laser beam to fuse completely the desired material onto a substrate material for superior wear resistance or for repair.

Selective plating

Selective plating provides remarkable advantages over conventional plating processes: accurate metal deposition onto the required area in varying and closely controlled thicknesses; producing dense, fine-grained deposits, with increased hardness; no heat distortion since operating temperatures do not exceed 140ºF - 150ºF. In most cases selective plating translates into superior results, at a fraction of the cost.


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Wearfacing technologies


  • MMA welding
  • GMAW welding
  • TIG welding
  • PTA welding
  • Tiling


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Manual Metal Arc Welding

When an arc is struck between the flux coated electrode and the workpiece, both the core wire and the workpiece surface melt to form a weld pool. Simultaneous melting of the flux coating on the rod will form gas and slag which protects the weld pool from the surrounding atmosphere. The slag will solidify and cool and must be chipped off the weld bead once the weld run is complete (or before the next weld pass deposit). Castolin has developed the special EutecTrode® alloy range of low heat input electrodes for industrial wearfacing, repair and joining applications supported by a complete high quality, MMA welding equipment range based on latest technology.

Semi-automatic GMAW welding

MIG is similar to MMA in that heat is produced by forming an arc between a metal electrode and the workpiece. The electrode melts to form the bead. The main differences are that the metal electrode is a small diameter wire fed from a spool and an externally supplied shielding gas is necessary. As the wire is continuously fed, the process is often referred to as semi-automatic welding. The pulse mode was developed as a means of stabilizing the arc at low current values below the threshold level, to avoid short-circuiting and spatter. Metal transfer is achieved by applying pulses of current, each pulse having sufficient force to detach a droplet. Castolin has developed the special EnDOtec® (cored wire) and CastoMag® (solid wire) alloy ranges for industrial wearfacing, repair and joining applications supported by a complete high quality, MIG / MAG welding equipment range based on latest technology.

TIG welding

In the TIG process the arc is formed between a pointed tungsten electrode and the workpiece in an inert atmosphere of argon or helium. The small intense arc provided by the pointed electrode is ideal for high quality and precision welding. As the tungsten electrode is not consumed during welding, the heat of the arc will melt the base metal and a separate filler rod can be added into the weld pool if required. Castolin has developed the special CastoTig® alloy range for industrial wearfacing, repair and joining applications supported by a complete CastoTIG® welding equipment range based on latest technology.

Plasma transferred arc (PTA) welding

We are the market leader in using Plasma Transferred Arc welding to provide highest quality coatings to sensitive components with minimum heat input and distortion. Moreover, due to the low dilution rates, maximum coating properties are achieved in fewer passes or less coating thickness than traditional welding methods.

WC carbide tile deposition

Our extensive materials experience allows us to find the right carbide coating for your application. By varying the type, the shape, the size distribution, percentage of carbide deposited and the deposition method (welding, PTA, coating, brazing, tiling), we are able to bring the best coating properties for each and every application.