OCTG and Rig Inspections

OCTG and Rig Inspections Hub

OCTG and Rig Inspections

SAFETY technical SERVICES is a full member of Lifting Equipment Engineers Association LEEA and an inspection body accredited by GAC for ISOIEC 17020. We provide various inspections, testing and certification for all the lifting equipment and loose lifting gears. We have a team of LEEA approved competent lifting equipment inspectors who can conduct six monthly, twelve monthly and forty eight monthly inspection at Lifting Division our rigging yard in Muscat or at your location. Inspections are carried out in compliance to ISO/IEC 17020, LEEA codes of practice, Lifting Operations and Lifting Equipment Regulations LOLER, Provision and Use of Work Equipment Regulations PUWER, BS EN Standards & Petroleum Development of Oman – PDO guidelines and procedures.

NDT: Non Destructive Testing Services STSI is a leading NDT service provider offering a wide range of services in both Up-Stream & Down-Stream, This includes: Comprehensive Rig Inspections, quality control, Our team of professionally qualified and certified technician are well versed and experienced to perform conventional and advanced NDT inspection. Our team of technicians is available on a 24 x 7 standby call irrespective of environmental conditions.

RIG and Hoist Inspection: STSI Rig & Hoist Inspection Services help prevent equipment downtime, boost productivity and enhance safety. We provide yearly Catogory III or Category IV Inspections at the customer facility to ensure its fitness for use which is done by experienced welding and NDT Inspectors

One of our main specialties is the planning and execution of the 5 yearly certification of the derrick drilling equipment, which is done according to the manufacturer’s specifications and as per API recommendations. We have multidisciplined, inspection teams provided with a thorough knowledge and proven experience in this critical scope.

For each equipment inspection, we perform sand blasting, inspection, assessment. Find below a list of the pieces of equipment usually included, but not limited to;

  • Mast and Substructure
  • Top Drive, DDM and Gear Box
  • Dolly Assembly
  • Travelling Block
  • Crown Block, Cluster Assemblies and Housing replacement
  • Fast and Dead Line Rocker Arms and Sheaves
  • Pipe Racking System

OCTG / Tubular Inspection

Pressure Testing and Well control

This is a specific scope mainly focused on well control equipment, especially for clients expecting difficult drilling conditions and well control risks. The concerned equipment are the following:

  • BOPs (annular, single ram, double ram)
  • Accumulator unit and associated equipment (bottles, hoses, remote panels…)
  • Choke Manifold & remote choke control unit
  • Choke line and its valves
  • Kill line and its valves
  • Mud cross, DSAs and Drilling spools
  • Trip tank, PVT system, flow show paddel, gas detector
 Our scope will be as follows:
  • Review of well control equipment Certificates (initial and original COCs)
  • Review of well control equipment RE-Certification records
  • Review of all related maintenance records
  • Internal inspection of BOP cavities (opened as required)
  • Internal inspection of annular (dismantled as required)
  • Visual inspection and functional test of accumulator unit and its remote stations
  • Functional test of the BOPs
  • Pressure tests of the BOPs
  • Pressure tests of the choke manifold, choke line and kill line and their valves
  • Functional test of all other well control equipment

Specialised Coating

Specialty Coatings including Xylan and Everslick

Both Xylan and Everslik are commonly used because of their combination of Corrosion Resistance and Chemical Resistance. Both Are popular in the Oil and Gas sector, but have different applications.

Xylan is a brand name of a range of coatings, each of which can be used for different applications but typically they contain PTFE and offer improved Wear Resistance, Reduced Friction and Heat Resistance. They are most popular as a coating for components that will be used in subsea environments.

Everslik is a dry lubricant coating that is often combined with different materials depending on the application. It’s one of a number of Molybdenum Disulphide based coatings that are supplied under various trade names. Everslik will give your components added protection against corrosion, is low friction, and can operate at a wide range of temperatures.

STSI Facility is at your service to provide you with the most technically advanced forms of industrial coatings.


  • Zinc Phosphate Coating: (for equipment that may be exposed to severe environments)
  • Xylan Coating: (generally used to reduce friction and for protection in corrosive environments)
  • Everslick Coating: (used for its lubricity and corrosion resistance)

Sand Blasting and Painting

“Sandblasting”, abrasive blasting is the use of abrasive “Media” under high pressure air to erode the surface of an object down to its parent material. Over time, metals by nature oxidize (e.g.. rust) and lose their luster and shine. Depending on the media used, dull metals can be made to look new again. Painted surfaces can be quickly cleaned away saving time and effort. Abrasive blasting is not limited in its use and has many applications to which it can be used with great effect. Grit blasting is ideal for aggressive cleaning applications.

Paint is the most commonly used material to protect steel. The protective paint systems usually consist of primer, undercoat(s) and finish coats. Each coating ‘layer’ in any protective system has a specific function, and the different types are applied in a particular sequence of primer followed by intermediate / build coats in the shop, and finally the finish or topcoat. We verify the paint materials are in compliance with the specification and this includes checking packaging and labelling; verifying the condition of paint in the container; and taking samples for testing. One of the most important inspection tasks we perform during a painting project is measuring the thickness of the paint coat to always make sure it’s the right thickness.


STSI has extensive experience with this type of inspection, we have been using DROPS Awareness and Prevention Format and the DROPS Inspection Guide, for several years within the oil and gas industry, aiming at avoiding potential accidents. We are qualified to conduct dropped object surveys for all types of

structures and areas, and the report will consist in an inventory of equipment within the structure, an assessment of its integrity and the recommended secondary retention method, including the inspection frequency for each item.

The surveys consider all items and attachments to the structure with regard to primary and secondary retention devices, to ensure they are secured or and fit for purpose condition. The report will also assess any corrosion to the structure, fixtures and equipment. Report on severity, location, and all areas of concern, will be identified and detailed on the inspection report with individual photos and recommendations.

OCTG and Rig Inspections

OCTG and Rig Services

For More Informtion:

+968 95971095
+968 97235228


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