(Protecting Assets and Environment from Effect of Corrosion)

Introduction

Corrosion effects our society on a daily basis causing degradation and damage to oil and gas installations, household appliances, automobiles, airplanes, highway bridges, buildings, power production, distribution systems and much more. The cost of corrosion and the damage it causes is astronomical.

In the recent years, Industry has witnessed tremendous expansion in underground metallic structures such as pipelines, well casings, storage facilities and communication cables. As the number of underground structures increased , Corrosion problems also multiplied likewise raising the cost of repairs and replacements to immense proportions. This led to a great demand for corrosion mitigations measures. There are many methods of Corrosion Prevention but the most cost effective and widely used method is Cathodic Protection

Inspectest (Private) Limited has vast and rich experience in providing Inspection, Testing and Certification services to various Industrial sectors all over Pakistan. To further facilitate our valued Clients, we are pleased to offer following Services in the field of Cathodic Protection.

• Design

• Installation, Commissioning and Maintenance

• Technical audit of In-Service Systems

Accurate site data and correct system installation are the foundation upon which the quality of a Cathodic Protection system is built.

Design

• Soil and water analysis

• Current requirement testing

• Isolation and resistance testing

• Potential profiling

• Underground pipeline current mapping

• Determine the type of corrosion and its effects

• Determine the methods of mitigation

• Plans and Drawing(s)

Installation services include:

• Impressed Current Cathodic Protection by deep anode ground bed

• Sacrificial Anodes

•  Test Station Installation

• System relocation and repairs

Cathodic Protection Systems are commissioned including all necessary tests and measurements as detailed in the Design documents and the work scope.

•  Cathodic Protection Review

• Routine Monitoring

• Coating Inspection

• Rectifier Monitoring and Repair

The following services are offered:

•  Site investigation

• Current drainage surveys

• Line current : native and applied

• Soil Resistively surveys Including Ground Bed Locating

• Electrical Continuity, Isolation and Resistance

• Pipe and cable detection, location and mapping

• Potential profiles : annual and close interval survey's

• Stray current and Interference

• Insulating flange / coupling di-electric tests

• Bellhole / NDT Inspections and documentation

• Above ground coating Integrity Survey

Petroleum and Petrochemicals

Underground piping and storage tanks, above ground storage tank bottoms, internal surfaces of water storage tanks, heat exchangers and storage well casings.

Marine

Ships, barges, buoys, steel or reinforced concrete dock structures, offshore pipelines, offshore drilling and production platforms.

Pulp and Paper

Effluent clarifiers, underground piping, aboveground storage tanks bottoms, foundation piping, water mains and effluent discharge piping.

Municipal

Foundation pilings, iron and steel water mains, concrete pressure pipes, sewage treatment clarifiers and sewage pump stations.

Electrical Power Industry

Cooling water pipelines and Intakes, grounding systems, tower footings, penstocks and condensers.