non destructive test ndt

understanding Non Destructive Testing (NDT) used in Oil and Gas industry

Non Destructive Testing In oil and gas industry (upstream, middle stream and down stream), we used advance inspection and non destructive testing or NDT. Advance inspection include ILI, Long range Ultrasonic testing, Short range Ultrasonic testing, UAV inspection and Ground Penetrating Radar survey / inspection. NDT used in inspection & maintenance daily job, turn around and project ( construction phase ). Every fixed equipment construction, use NDT as quality control tools. The purpose of NDT activity is to detect defects/discontinuity (above the surface, beneath the surface, and in a material). NDT measure the geometry of the objects and determine the[…]

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arc welding basics

understanding arc welding basics and type of arc welding

Arc Welding Welding can be defined as “the operation that produces coalescence of two or more members by applying heats or pressure or both, with or without the use of filler metal” . Welding (Metallurgical joining) can further be classified by the joining mechanism into 4 groups : Fusion welding ( can be referred to as welding in the narrow sense), solid phase joining (pressure welding), diffusion welding and joining by liquid-solid phase reaction (Brazing & soldering). Fusion welding consist of 5 categories : gas welding, arc welding, electroslag welding , thermite welding and high energy beam welding (electron beam[…]

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essential variables in WPS

1G, 2G, 3G, 4G, 5G, 6G, 1F, 2F, 3F, 4F pipe and plate welding position

What is the welding position? Welding Position is the type or position of the connection to be welded, this welding position is based on the material or product to be welded. In welding technology, all of them have coding based on the type of connection. For fillet connections, it is symbolized with positions 1F, 2F, 3F, and 4F, while for groove or bevel connections it is symbolized by 1G, 2G, 3G, and 4G. Fillet weld is a method for combining two parts of metal vertically or slightly at an angle. They are also known as T connections or Lap connections[…]

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guided wave ultrasonic testing and LRUT basic

guided wave ultrasonic testing for pipeline inspection in oil and gas industry

Why choose guided wave ultrasonic testing pipeline inspection? LRUT (Long range ultrasonic testing) or sometimes called as GWT (guided wave testing) or GWUT (Guided wave ultrasonic testing) is becoming commonplace today for ultrasonic pipeline inspection. This technology is used as excellent NDT for the screening tool. Guided wave ultrasonic pipeline inspection offer many advantages such as High productivity (km per day), access required only at discrete locations, carried out with pipe on-line ( not require shutdown) and 100% coverage except for flanges, tees and other large features. This LRUT/GWT technology come as a solution for pipeline inspection problem like restricted[…]

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