Pipeline Testing

Pipeline testing is the process in which an inert gas (such as Nitrogen) or water is used to pressurize a section of pipe to the maximum allowable operating pressure (MAOP) and checked for integrity. Integrity testing typically lasts from 4 to 8 hours depending on the visibility of the pipeline and industry standards. Within that time window, the pressure is held at a constant and the pipeline is checked for leaks.

Atlantic is able to handle every step of the testing process eliminating the logistical supply chain and efficiently test pipelines.

We provide several options to fit your testing needs. For nitrogen testing, we offer either on-site generated nitrogen or delivered cryogenic liquid nitrogen. Click on the tabs to learn more about the process. We are also able to provide hydrostatic or water testing wich can be a safer alternative to high pressure nitrogen.

Nitrogen Testing

Cryo Nitrogen

Membrane Nitrogen Generator

Nitrogen Gas

Nitrogen gas in a membrane rig is separated from the atmosphere, eliminating the need for liquid nitrogen to be delivered on site and produces nitrogen at a fraction of the cost of liquid nitrogen units. Membrane Nitrogen can be pumped at rates up to 750 standard cubic feet per minute (SCFM).

Click on each dot to find out more about the operation of the Membrane Rig.

Control Cab

The climate controlled operator's cab provides precise control of all instruments on board the trailer. The temperature and flow rate of the nitrogen going into the system can be finely tuned for what the job needs.

Diesel Fuel Tank

400 gallon fuel tank for up to 10 hours of continuous operation. Atlantic provides a sister truck to run fuel so there is no downtime in nitrogen operations.

Engine and Air Compressor

Rotary screw feed air compressor driven by a Caterpillar diesel engine.

Pretreatment Filtration and Air Separation

The air compressor feeds an air pretreatment filtration system for moisture, particulate, and hydrocarbon removal. Then the pretreated air flows through a hollow fiber air separation membrane for high nitrogen recovery.

The membrane rig runs at 750 scfm with 95% Nitrogen purity.

Booster Compressor

High pressure nitrogen booster compressor driven by a Caterpillar diesel engine.

The booster is able to reach pressures up to 4,000 pounds per square inch (PSI).

Trailer and Enclosure

53ft drop deck tri-axle trailer with built in pipe racks and tool boxes.

Custom steel and aluminum enclosure for maximum airflow and maintainability.

Cryo Nitrogen

Cryogenic Nitrogen Pumper

Nitrogen Gas

Nitrogen is an inert gas that has many properties that makes it ideal for use in the oil and gas industry. As an intert gas, it does not support combustion, and is capable of displacing flammable materials inside a system. Cryogenic Nitrogen can be pumped at rates up to 12,000 standard cubic feet per minute (SCFM).

Click on each dot to find out more about the operation of the Cryo Rig.

Control Cab

The climate controlled operator's cab provides precise control of all instruments on board the trailer. The temperature and flow rate of the nitrogen going into the system can be finely tuned for what the job needs.

Liquid Nitrogen Tank

The pumper holds 3,300 gallons of liquid nitrogen at a time that can be supported by a separate queen unit which holds 1,500,000 SCF of Nitrogen at a time.

Engine and Exchange Heater

600 Horse power cummings engine.

This is a direct fire engine for heating the liquid nitrogen from -320°F to 500°F and can pump nitrogen at rates up to 12,000 SCFM.

Hydrostatic Testing

Complete Turn-Key Operation

We are able to provide services in every step of the hydrostatic testing process. We handle the logistical supply chain necessary to provide the clean water, testing, removing the water after the test, and drying the system so it is ready for use.

How Hydro Testing Works

Hydrostatic testing is a type of testing where a system is completely filled with water removing all of the air and pressurizing the vessel to a specified test pressure. The vessel is first filled with high flow pumps which can operate anywhere from 300-500 Gallons Per Minute (GPM) at 100-800 PSI of head pressure.

Once the system is full of water, high pressure pumps are used to bring the system to Maximum Allowable Operating Pressure (MAOP) or some other specified test pressure.

Services

At Atlantic Nitrogen & Testing, we provide complete Turn Key service where we handle every aspect of the process.

We can supply the water tanks, hydrostatic pumps, pressure pumps, gauges and equipment, and most importantly, the safe disposal and cleaning of the pipeline after the test is finished.

We posess the capability of counting all water that goes into the system using stroke counters and flow meters, and all of our pressure gauges are calibrated to work with both water and nitrogen.

The Safer Alternative to Pneumatic Testing

Pneumatic testing or using compressed air to test a pipeline can potentially pose a danger through stored energy. When air is pressurized in a vessel, there is the potential for a critical faliure in the pipe to cause an explosion.

However, with hydrostatic testing, that stored energy is no longer a threat. Since water cannot be compressed like a gas, if the vessel under pressure were to fail, there will be no stored energy to cause secondary damage.

Testing Equipment

Atlantic Nitrogen uses state of the art testing equipment to ensure the accuracy and precision of tests. All of our equipment are recalibrated every 6 months and all paperwork is kept up to date.

Pressure Testing Equipment

Barton 12" Dual Pin Chart Recorder

An industry standard for years. The Barton Chart recorder is an analog histogram recorder which measures pressure and temperature on a 24 hour chart.

Crystal nVision Digital Data Logger

We use both the digital and the analog recorders simultaneously in order to ensure the safe and acurate logging of data. The digital sensor also has much more precise instruments to accuately measure pressure and temperature compared to the Barton recorder.

Deadweight

While the digital pressure meters have replaced much of the need for deadweights, certain standards call for an analog deadweight to be used in a test. Atlantic has all of the equipment necessary to handle those needs.

Meters and Gauges

Badger Flow Meter

Used in hydro testing, the badger flow meter can accurately measure the amount of water put into a system. These meters are rated to function at high pressures compared to stroke counters which only can be used with static pressure.

Defelsko Dew Point Meter

Once the system has been tested and all of the medium taken out, all of the moisture present in the system must be taken out so that live product may be put in. To measure the moisture levels in a pipe, we use the dew point meter which can measure down to -100°F relative humidity.