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Logic Ndt Solutions

Logic has since grown into a leading project delivery company with a strong background in Inspections who aim to provide stellar service to our customers in multiple service sectors.

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Overview

Logic NDT Solutions Ltd was born in the light of the global market crash in April 2009. Our founders saw opportunity through the cloud of recession and economic turmoil within the oil and gas industry and knew they could build a company with a base to outlast.

Logic has since grown into a leading project delivery company with a strong background in Inspections who aim to provide stellar service to our customers in multiple service sectors. Your satisfaction in the services and documentation you are provided is paramount in importance to us, and we continuously strive to ensure your demands are being met.

Our objective is to provide innovative, sustainable and cost-effective solutions to the best interest of our esteemed clients. We aim to always offer best-in-class services to improve the operational capacity of our clients and help them grow their business with us.

With the interest of our clients and partners at heart, Logic NDT Solutions Ltd is driving forward through the surreal times put in front of us throughout the COVID-19 pandemic and the Oil & Gas turndown of 2020 – and are on track to come out stronger and more efficient on the other side.

Products & Services
Inspection Services

Magnetic Particle Inspection

Magnetic Particle Inspection is an investigative inspection technique used for finding surface/near surface defects in ferromagnetic material. Magnetic particle testing is a versatile inspection used for both field and shop applications.

How it Works

Magnetic particle testing works by magnetizing a ferromagnetic specimen using either a magnet or special magnetizing equipment. If the specimen has discontinuity, then the magnetic field flowing throughout the specimen is interrupted, where leakage field occurs.

The specialist applies finely milled iron particles coated with dye pigment to the specimen. These are attracted to leakage fields and cluster to form indications directly over the discontinuity. This indication is then detected visually under proper lighting conditions.

Basic Procedures for Performing Magnetic Particle Testing

The basic procedure that is followed to perform Magnetic Particle testing consists of the following:

  1. Pre-cleaning of the Component
  2. Introduction of Magnetic Field
  3. Application of Magnetic Media
  4. Interpretation of Magnetic Particle Indications

It is essential for the particles to have an unimpeded path for migration to both strong and weak leakage fields. Therefore, the component in question


should be clean and dry before beginning this inspection process. The presence of grease, oil, or scale can compromise the inspection.

The introduction of the magnetic field can be done in a few ways, including the use of a permanent magnet, passing electrical current through the specimen or a coil of wire around said part, or through a central conductor running near the part.

Types of Magnetic Fields Used For Magnetic Particle Inspection

Establishing two types of magnetic fields within the specimen is possible.

Longitudinal Magnetic Fields

Longitudinal magnetic fields are produced using a magnetic coil or a permanent magnet called a Magnetic Particle Yoke.

Circular Magnetic Fields

We produce Circular Magnetic Fields by passing current through the part, or by placing the part in a strong circular magnetic field.


Magnetic Particle Inspection can use either wet or dry magnetic media. While the dry method is more portable, the wet method is generally more sensitive due to the liquid carrier giving the magnetic particles added mobility.

The Importance of a Skilled Inspector in The Process of Magnetic Particle Inspection

A skilled inspector must interpret indications formed after applying the magnetic fields. This requires individuals to distinguish between relevant and irrelevant indications.

  • Can detect both surface and near-subsurface indications
  • Can inspect parts with irregular shapes easily
  • Pre-cleaning is not as critical in comparison to other inspection methods
  • A fast method of inspection with visible indications directly on the specimens surface
  • Considered low cost compared to other NDT techniques
  • Very portable inspection
  • Liquid Penetrant Inspection

Liquid Penetrant Inspection

Liquid Penetrant Inspection is an inspection technique based on the properties of capillary action, the phenomenon of a liquid rising or climbing when confined to a small opening due to surface wetting properties of the liquid. We use this Penetrant testing to find surface breaking discontinuities on relatively smooth, nonporous surfaces.

Basic Procedures for Liquid Penetrant Inspection

The basic procedure necessary for carrying out Liquid Penetrant Inspection consist of the following:

Rolled Products: Penetrant identifies anomalies (cracks, seams or laminations)

Castings: Cold shuts, hot tears, porosity, blow holes or shrinkage

Forgings: Illuminating cracks, laps or external bursts

Welds: To identify cracks, porosity, undercut, overlap, lack of fusion or lack of penetration

Rotary Shouldered Threaded Drilling Tools: To identify cracks, corrosion pitting, mechanical damages on outside diameters, or inside diameters, and internal/external washing from fluid erosion


Two Types of Liquid Penetrant Inspection

There are two main types of Penetrant, Fluorescent or Visible. Within either of these methods, there are several other practices including water washable, postemulsifiable-lipophilic, solvent removal and postemulsifiable-hyperdrophilic.

There are six main steps involved with penetrant testing:

  1. Pre-Clean.
  2. Application of Penetrant Material.
  3. Dwell Time/Penetrant Removal.
  4. Developer Application
  5. Inspection/Evaluation.
  6. Post Clean.


Advantages of Liquid Penetrant Inspection

The main advantages of Penetrant Testing are:

  • Relatively easy to use
  • Used on a wide range of material types
  • Large areas or large volumes of parts/material can be inspected rapidly and at low cost
  • Easily inspect Parts with complex geometries
  • Indications are produced directly on the surface of the part providing a visual image of the anomaly
  • Using Aerosol spray cans make equipment very portable

A partial list of these certifications/techniques includes American Petroleum Institute (API), SNT-TC-1A, and DS-1 (TH Hill) Standards.

Visual Inspection

This is a visual inspection technique to multiple industries.

All NDT techniques are based on interpreting visual anomalies to determine test specimen soundness as detailed by the code or specifications to which the test is performed.

However, specific industries require a variety of visual inspection certifications to inspect their specific equipment.


A partial list of these certifications/techniques includes; American Petroleum Institute (API), SNT-TC-1A, ASNT, CGSB, and DS-1 (TH Hill) Standards.

Internal & External Tool Repair Services

Connection Thread & Seal Repair

Logic NDT Solutions Ltd works with specialists trained and authorized through Logics’ extensive professional training to complete tasks as per specification. Our specialists verify the Thread and Seal Repair of rotary shouldered connections in the visual portion of the inspection process.

There are acceptance criteria dictated to Logic by the specific specifications followed, and by our customers. Some clients have written acceptance criteria that supersedes other criteria. While others do not have criteria and instead require Logic NDT Solutions Ltd to follow the criteria that is stipulated in the work/purchase order.

Unfortunately, in many drilling applications, some threads and seals may become damaged. There are two types of damages, one of which can be repairable onsite, while unfixable onsite damages must be sent to a machine shop to be repaired or re-cut.


Machine Shop Services

In many drilling applications threads and seals may become damaged, cracked, exposed to corrosion inhibited pitting, and washed due to fluid erosion. Unfortunately, because a part may be cracked, further evaluation is required depending upon the nature of the material.

There are acceptance criteria dictated to Logic by the specific specifications followed, and by our customers. Some clients have written acceptance criteria that supersedes other criteria. While others do not have criteria and instead require Logic NDT Solutions Ltd to follow the criteria that is stipulated in the work/purchase order.

Non-ferrous materials require Liquid Penetrant evaluations, while ferrous materials require Magnetic Particle evaluations.

Logic NDT Solutions Ltd offers three types of machine shop services to our valued clients:

  1. Manufacturing of tools or new rotary shouldered connections
  2. Re-cut rotary shouldered connections or a face
  3. Chase repair services of a rotary shouldered connection of shoulder

All three of these services require Logic NDT Solutions Ltd to transport  from or to our critical provider’s facility to perform the required services for our customer. Logic NDT will verify the proper machining is followed through by inspecting everything before delivery to the customer.

Below are some examples of damages that require a machine shop repair:


Hard-Band & Mud-Ring Repair

Our specialists determine the Hard-Banding servicing of drilling during the  visual segment of the inspection process.

There are acceptance criteria dictated to Logic by the specific specifications followed, and by our customers. Some clients have written acceptance criteria that supersedes other criteria. While others do not have criteria and instead require Logic NDT Solutions Ltd to follow the criteria that is stipulated in the work/purchase order.

The size (width) and type (PTA or Laser Clad) of hard-banding are provided to us by our clients. We monitor the before and after measurement by issuing hard-band report format given to the provider by Logic NDT Solutions Ltd on behalf of the customer.

Once completed, the customer receives a copy, and Logic keeps a digital copy for reference if required later.


Window Cutting & Tools Serialization

Logic NDT Solutions Ltd offers professional window cutting and tool serialization services on a wide scale to ensure our clients receive premium quality services.

We use the best experts in this field with state of the art machinery to provide cutting-edge tool serialization services.

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