Our certified inspectors comply with API, Proprietary, TH Hill DS-1, ASNT procedures and standards, offering inspection services for drill stem.
Standards
Reliability of inspection process depends on standards. These are used to ensure reproducible results during the drill pipe inspection and also helps us compare results and make decisions on acceptance/rejection. Ensuring all figures, dimensions and tolerances are complied within these requirements is an important factor in assuring the tubulars are fit for use.
Globally, some inspection standards apply depending on customer requirements in different drilling areas. These include:
• API RP 7G/2: Recommended practice for Inspection and Classification of used Drill Stem Elements
• DS-1 Volume 3: Drill Stem Inspection
• NS-2 Drill string Inspection Standard
Methods of inspection
Non Destructive Testing (NDT) is used to inspect the tubulars. The inspector will look at high-stress areas, including threads, slip areas, weld areas and radius changes, to detect if any fatigue or cracks have occurred in the pipe. There is some inspection that can be done in the field, eg. visual and dimensional inspection, internal conditions of the pipes and hard banding. To cover all methods, testing needs to be completed in the yard as a line flow is required for the inspection to be cost effective.
Many methods are used during the inspection process, including:
• Visual inspection (VTI)
• API/RSC thread inspection (API-TI)
• Dimensional inspection (DI)
• Electromagnetic tubular inspections (EMI)
• Magnetic particle (MT)
• Liquid dye penetrant (PT)
• Ultrasonic inspection of rotary-shouldered connections (UT-RSC)
• Ultrasonic inspection of high-stress areas and tube upsets (UTEA)
Depending on the client requirement the inspection programs are tailored with respect to the standards.
Please go to enquiry page for further details;
Pipe maintenance services
As customized tailor made services, we at EES provide the below mentioned maintenance services for the Tubulars.
• Cleaning and Water Blasting with Ultra High pressure pumps (UHP)
• ID/OD coating and preservation for long term storage
• Yard and Inventory management services
