Control valve maintenance and things to do to extend control valves life

Published on April 2, 2020

Always follow the control valve manufacturer’s maintenance manuals. Typical maintenance topics are summarized here together with recommendation to extend the life of the control valves. Optimi...


How to control corrosion at compressor stations

Published on March 15, 2020

Corrosion failures at compressor stations result from carelessness mostly on the part of the users or poor choices of material and/or configuration by the project. The following factors shoul...


Definitions of MAWP, MAP, MOP, Design Pressure, Hydrotest Pressure, Burst Pressure, Working Pressure and more

Published on March 4, 2020

Maximum Allowable Working Pressure ( MAWP ) - maximum gauge pressure permissible at the top of the equipment in its operating position for a designated temperature (e.g. maximum pressure tha...


Steam Traps selection and advantages vs. disadvantages of each type

Published on March 2, 2020

There are many factors that affect steam generating system in the energy industry, and multiple pros and cons in selecting a right steam trap for your application, the following are advantages vs....


What are corrosion coupons and corrosion probes and holders?

Published on Feb. 19, 2020

Corrosion coupons, probes, holders are corrosion-sensing devices that can detect the rate of corrosion in any process environment. Corrosion coupons are probably the oldest and simple and ver...


FPSO Inert Gas [Nitrogen] Description and Design Requirements

Published on Feb. 18, 2020

The FPSO topside typically includes a nitrogen generation and distribution system. The system should be designed to provide sufficient nitrogen for blanketing and purging of the process syst...


How to effectively use Adjusts and Recycle Operations?

Published on Feb. 17, 2020

What are the Adjust and recycle logical operations? Adjust and recycle logical operations are examples of iterative calculation routines. That is, these operations take an initial guess a...


Thermal Insulation Credit for Pressure Relief Valve Sizing Calculation

Published on Feb. 16, 2020

Credit factors for insulation in determining the minimum Pressure Relief valve sizes for fire exposure should be as per API RP 521 with following additional guidelines: Credit can be take...


Reducing the likelihood of highly toxic & hazard chemicals that has catastrophic consequences

Published on Feb. 3, 2020 By ES Staff

A look at quality assurance beyond existing Industry Standards and typical Quality Assurance Programs, regarding the installation and fabrication of construction materials in "highly toxi...


Factors affecting steam generating systems and facilities

Published on Jan. 25, 2020 By ES Staff

The following are considerations associated with steam systems that have special significance for the steam trap user and designer alike. While these are common problems, their adverse effects...


Racking, Stabbing, Switching of high energy electrical systems

Published on Jan. 18, 2020 By ES Staff

High energy electrical systems have the potential to cause serious injury with shock and flash hazards and significant equipment damage. During racking, stabbing, and switching of high energy ...


Offshore Pipeline Abandonment

Published on Oct. 2, 2016 By Tadd Pham

All offshore pipelines in water depths shallower than 200 feet below mean sea level should be removed unless buried to a minimum of 3 feet below the seabed surface, e.g. below the natural seafloor, ...


Working on or near exposed energized electrical equipment

Published on Oct. 10, 2019 By ES Staff

The purpose of this document is to protect personnel when working on or near exposed energized electrical circuits and equipment. First and foremost, working on unguarded energized equipment ...


Overheating of pre-insulated instrument tubing and freeze protection lesson learned in supporting the use of ground-fault equipment protection

Published on Oct. 4, 2019 By ES Staff

Overheating of pre-insulated instrument tubing exceeded the service temperature of the tracer materials (Polyolefin) which set up conditions for an arcing ground fault as the energized bus con...


Safe Practice of Removing Power to a Heater Circuit Whenever the Thermal Insulation is Removed

Published on Sept. 9, 2019 By ES Staff

This lesson learned supports the safe practice of removing power to a heater circuit whenever the thermal insulation is removed. Ground leakage equipment protection devices limit the energy av...