Experts in non-destructive testing

Serving the Australasian Oil & Gas Industry

Independent NDT performs maintenance inspections for New Zealand drilling operators performing non destructive testing (NDT) inspections on all equipment from the crown to the drill bit.

All of Independent’s inspectors are trained on the job, through the company’s training scheme, and are then sent to the International Pipe Inspectors Association of Houston, Texas, USA, for the relevant inspection examinations.

Independent NDT Limited has their purpose built inspection facility at 9 Swans Road, Bell Block, Taranaki. This allows for all weather indoor inspections and the ability to work around the clock to meet customer requirements and time frames when required.

our services

Independent NDT Limited performs non-destructive testing including:

  • Magnetic particle inspection (MT) for ferrous equipment, and
  • Liquid penetrant inspections (PT) for non-magnetic equipment
  • Of end area connections
  • Thread profile gauging and visual end area
  • UT connection inspection of both ferrous and non ferrous tools (to what is commonly referred to as an “API inspection”)

Further to this, dimensional checks are made for compliance to API Specification 7, for new rotary shouldered threaded connections, and also compliance to the used criteria for drill pipe and bottom hole assembly (BHA) such as T. H. Hill, Drill Stem 1, commonly referred to as T. H. Hill, DS-1.

Independent NDT Limited can inspect drill pipe, full length, using the Electronic Magnetic Induction method (EMI, buggy run) and critical areas with the latest Ultrasonic end area wheel to the following recommended procedure of API RP7G-2 and or to a T. H. Hill DS-1, drill pipe inspection category 5, if required, which encompasses the dimensional check of rotary shouldered connections, ultrasonic (UT) wall thickness measuring, EMI, MT inspections of the tubular outside diameter and connections, UTEA in compliance with that procedure.

“…We added the techsonic EZ II Ultrasonic end area wheel toperform category 5 inspections making Independent the only company in New Zealand able to perform this inspection”

During 2008 Independent NDT Limited purchased two new VEDAQ 2000 mobile drill pipe units and can perform inspections from 2-7/8 inch to 6-5/8 inch OD drill pipe. Giving full digital acquisition search coil and hall effect monitoring of tube integrity.

In 2014 we added the techsonic EZ II Ultrasonic end area wheel to perform category 5 inspections making Independent the only company in New Zealand able to perform this inspection. Directional equipment such as drilling motors, non-magnetic jewellery, intelligent directional equipment, and BHA dumb iron have been a core part of Independent’s business and the company has been entrenched with major players in this business since day one.

certified
experts

Independent’s inspectors undergo on-the-job training through the company’s training program. Following their training, they participate in relevant inspection examinations administered by the International Pipe Inspectors Association in Houston, Texas, USA.

ABOUT US

Oilfield Inspection Programs

Independent NDT Limited specializes in maintenance inspections for New Zealand drilling operators. Their focus is on non-destructive testing (NDT) inspections for all equipment, from the crown to the drill bit. 

decades of
Experience

Independent NDT Limited was established in January 2001 with the purpose of conducting third-party non-destructive testing (NDT) on down-hole drilling equipment. Between them, our team has decades of expierence in oil and gas and pipe inspections.

Professional
Team

All of Independent’s inspectors receive on-the-job training through the company’s training scheme. After training, inspectors undergo relevant inspection examinations conducted by the International Pipe Inspectors Association in Houston, Texas, USA. 

purpose-built inspection facility

Independent NDT Limited operates a purpose-built inspection facility located at 9 Swans Road, Bell Block, Taranaki. This facility allows for all-weather indoor inspections and ensures they can work around the clock to meet customer requirements and time frames.

our clients

Get the EXPERTS IN NON-DESTRUCTIVE TESTING​

Get in touch today with our friendly team.