Nitrogen is an abundant gas forming approximately 78 % of the earths atmosphere. As an inert chemical it is both non-reactive and non-corrosive. Due to its properties, nitrogen is widely used in many industries to purge and condition systems. TES can apply nitrogen at various temperatures and pressures to assist with your project specific requirements while ensuring system limitations are respected and protected. Nitrogen related services provided by TES include:
- Purging and Inerting
- Nitrogen-helium leak detection
- Dewatering and drying
- Accelerated cooldown
- Foam inerting
- Freeze plug isolation
- Pneumatic testing
- Well applications
Nitrogen is often shipped as a cryogenic liquid with a boiling point near -196 °C. Specialized vaporization and pumping equipment is utilized to vaporize and apply nitrogen at predetermined temperature, pressure, and flow conditions. Gaseous nitrogen can also be shipped in pressurized containment vessels and applied at predetermined conditions.
Due to its physical properties, nitrogen also poses hazards that must be diligently managed. These include, extreme temperatures, extreme pressures, and asphyxiation risk. TES has the knowledge and experience to enable safe and efficient field application of nitrogen services.
Nitrogen-Helium Leak Detection
Do you need to prove systems are leak free prior to start-up? Do you need to find a leak? Technical Energy Solutions (TES) conducts nitrogen-helium leak detection to prove systems are leak free. Typically, a system is pressurized with a mixture of 99 % nitrogen and 1 % helium to 95 % of system PSV setting to closely simulate live conditions. Potential leak sources such as flanges are methodically checked and evaluated. Leak rates are quantified and compared against target thresholds to enable informed decision making. Leaks beyond a set threshold are rectified. Moreover, because nitrogen is inert, the system is left inert, oxygen-free, and ready for introduction of hydrocarbons.
TES will generate a project-specific engineered procedure combined with a risk assessment to enable safe and efficient field execution. By applying this methodical approach, TES helps you start up your process system safely and without delays due to unidentified leaks. As is customary for TES, parameters are monitored and verified utilizing calibrated instruments to drive safe and efficient operations.
Freeze Plug Isolation
Do you require a temporary isolation because a system isolation does not exist? Do you require a secondary isolation to enable safe maintenance work? Technical Energy Solutions (TES) conducts nitrogen freeze plug isolations to provide a safe temporary barrier within your process system. This service relies on the controlled application of liquid nitrogen which has a temperature of approximately -196 °C. Freeze plugs can be established on a wide range of system fluids and piping metallurgies. This solution is not intrusive to your system and requires minimal operational support.
TES will generate a project-specific engineered procedure combined with a risk assessment to enable safe and efficient field execution. By applying this methodical process TES helps you achieve a temporary isolation. As is customary for TES, parameters are monitored and verified utilizing calibrated instruments to drive safe and efficient operations.