Lead NDT

Magnetic particle testing is utilized to inspect ferromagnetic materials (those that can be magnetized) for defects located at or near the surface.

This technique is highly effective in detecting cracks, stress fractures, and other surface flaws. Lead NDT commonly utilizes mag particle testing for the inspection of handling tools such as slips, elevators, bales, etc.

Main Advantages:

• Large surface areas of complex parts can be inspected rapidly
• Can detect surface and subsurface flaws
• Surface preparation is less critical than penetrant inspection
• Magnetic particle indications are produced directly on the surface of the part and form an image of the discontinuity or defect
• Equipment costs are relatively low

Ultrasonic testing is utilized to detect surface and subsurface defects in a wide range of materials including metals, plastics, and wood.

Ultrasonic inspection may also be utilized to measure the thickness of materials and to characterize the properties of various materials. This form of testing is an electronic process based on sound velocity and attenuation measurements. Lead NDT commonly uses ultrasonic testing on welds, SEA, and various raw materials. In addition, we utilize the latest in ultrasonic technology to ensure accurate results and dependability.

Main Advantages:

• Depth of penetration for flaw detection or measurement is superior to other methods
• Only single-sided access is required
• Provides distance information
• Minimum part preparation is required
• The method can be used for much more than just flaw detection

Liquid penetrant testing is utilized to locate cracks, porosity, and other defects that break the surface of a material and have enough volume to trap and hold the penetrant material.

 This type of inspection can be utilized to inspect large areas very efficiently – and will work on most nonporous materials.

Main Advantages:

• Large surface areas or large volumes of parts/materials can be inspected rapidly and at low cost
• Parts with complex geometry can be inspected efficiently
• Indications are produced directly on the surface of the part, providing a visual image of the discontinuity

Visual inspection or visual testing (VT) is always performed as the first step in any NDT inspection – unless the specimen is in a location or position that cannot be viewed.

Visual testing requires direct line-of-sight contact with the portion of the specimen to be inspected.

Adequate illumination of the test specimen is also required – as well as a thorough understanding of the nature and origin of potential defects within the test object. The technician must also have detailed knowledge of the specifications controlling the inspection process to properly perform visual testing.

Electromagnetic inspection (also known as electromagnetic induction) has been proven to be the most efficient and effective method for detecting defects that can shorten the life of drill pipe.

EMI is capable of detecting a much wider range of defects than other testing methods – including fatigue cracks, corrosion, pits, cuts, washouts, and more. This advanced technology utilizes a portable device that can be used on-site and automatically scans the entire length of the pipe for defects.

By investing in an inspection and maintenance program that utilizes EMI, you can avoid failure of your drill string – which can result in costly downtime or even the loss of an entire well.

Main Advantages:

• Portable equipment can be utilized on-site
• Faster than other methods – saving both time and money
• Detects many more types of defects than most other testing methods