Gasfield Equipment & Supplies

Natural Gas exploration, production, distribution, and custody transfer can be complicated, requiring skilled engineering, specialized equipment, and precise, trustworthy instrumentation for measurement.

Petrogas can provide exactly what you need, from production and distribution expertise and equipment to real solutions for flow measurement and custody transfer.

The Invisible Issue

One issue with Natural Gas is being an "Invisible Commodity." You cannot see it, smell it, or taste it. Thus, it is imperative that the instrumentation and gauges used are of the highest quality and reliably accurate—from extraction to processing to the final product being shepherded via pipeline, railcar, or truck for sale.

Petrogas offers both its expertise and unrivaled equipment supply to ensure a reliable process at every step of the supply chain. Here is a list of some of the equipment we offer:

Flow Meters of All Types:

• Orifice

• Ultrasonic

• Coriolis

• Turbine

• Rotary

• Diaphragm

• Complete Meter Tubes provided separately or as complete measurement skids

Quality Analysis Devices:

• BTU Analyzers (Gas Chromatographs)

• Moisture/H2S/Carbon Dioxide/Oxygen Analyzers 

For Quality Analysis we can provide you with Sample Conditioning Systems delivered separately or as a complete Analyzer Enclosure and Shelter. Other professional services and equipment offered by Petrogas include, but are not limited to, the following:

• Flow computers and remote terminal units (RTUs)

• Volume correctors, pressure recorders, SCADA software, and remote communications

• Moisture filters, sample probes, natural gas filters, filter-dryers, and sample conditioning system components

• Natural gas odorizer systems

• Combustible gas detection and flame detection for personnel and asset protection

• Flame and detonation arrestors, tank vents, and pressure relief vents

• Pressure, DP, and temperature-transmitters, transducers, switches, wireless instrumentation, and thermowells

• Choke valves, safety relief valves, control valves, gauge plugs, and probes

• Gas chromatograph buildings

• Fuel gas skids, main line valve settings, and pig launchers and receivers

• Meter tubes, pipe supports, and facility piping

• Gas filters, separators and coalescers; replacement filters elements for PECO filters and many other brands 

• Pressure and temperature gauges, recorders, chart drives, volume recorders, thermometers, and thermowells 

• Valves, steel gate/ball/plastic/needle, weld end insulators/rain caps for relief valves, universal and portable electrofusion machines

• Hand-held digital manometers and rotary meter testers

• Residential and commercial lockwing type ball valves, including bypass design

• Automatic meter reading systems: walk, drive-by and fixed-base for gas, water, and electric 

• Pulsimatic transmitters, gas meter pulsers, and remote gas meter indexes 

• Electronic flow correctors, chart recorders, pulse accumulators, software and MI Wireless communication solutions

• Ball, slab gate and butterfly API valves 

• Enhanced performance pressure relief valves 

• Gas dry and coalescing filters, custom designs available

• Ultrasonic and turbine type gas flow meters 

• Gas diaphragm, rotary,  turbine meters, gas regulators,  filters

• Gas and liquid valves and actuators; modifications, testing

• Full port API ball valves, trunnion mounted, check valves; gear operators; and actuators

• Flameless infrared heaters for gas regulator sensing lines and heated regulator enclosures 

• Prefabricated measurement and regulator stations/skids, valve settings, manifolds, and pig launchers/receivers 

• Gas leak detection technology

• Floating ball valves, trunnion ball valves, swing check valves and needle valves for the oil and gas industry

• Pressure gauges, diaphragm seals, thermometers, thermowells, transducers and transmitters

• Natural gas odorant and odorant related products

• Moisture analyzers, deadweight testers, gravitometers, densitometers, dew point testers, tunable diode lasers, and UV/IR analyzers 

• Strainers, straightening vanes, meter tubes and orifices 

• Meter/regulator sets, bars, posts, manifolds; standard, custom designs

• Flow computers and BTU gas chromatographs

• High- and Low-pressure regulator products-- general purpose gas regulators, back pressure relief regulators, flow controllers, manifold systems, instrument air regulators, gauge thermometers, thermowells, needle valves and electronic products for oil, gas and petrochemical (pipeline); and gas regulation

Why This Matters

At Petrogas, we understand that owners, operators, regulators, consumers, and the public cannot easily manage, appreciate, or accept as fair what they cannot measure. So the accepted accuracy of the equipment is paramount.

The processing of natural gas is also quite complex, as the byproducts of processing can be sold. Some processing factors consist of the following:

• Btu content

• Water content

• Carbon dioxide

• Hydrogen sulphide

• Liquefiable hydrocarbons

Here's a closer look:

a) Btu content is the measure of the heating value of natural gas that is free of moisture. Contractually, natural gas may be defined as "dry" if it contains less than seven pounds of water vapor per thousand cubic feet (Mcf). This standard of measurement reflects the conditions under which natural gas is usually delivered into the pipeline system.

b) Water content is the actual measure of water vapor in the gas stream. If the content is too high (more than seven pounds per Mcf), dehydration may be required to remove the vapor before the gas is accepted into a pipeline's system. Water vapor removal is accomplished by passing the gas stream through glycol solution separators (and yes, we have them.)

c) Carbon dioxide (CO2) is a naturally occurring compound in gas reservoirs. Its presence diminishes the Btu value of a gas stream. If found in too high quantities (>2-3 percent), extraction may be required before transport on a pipeline.

d) Hydrogen sulfide (H2S) is measured in grains per million. This is a poisonous, corrosive gas that must be chemically treated and removed if found more than four parts per million. Natural gas may be "sweet" and "sour." Sweet gas has no measurable H2S that affects its merchantability. Sour gas has high enough levels of H2S that it requires treating or commingling with sweet gas to dilute the measurable level of H2S. The result is levels of H2S that are acceptable to pipeline systems.

e) Liquefiable hydrocarbons are heavier than natural gas (methanol) and may be economical to extract from the gas stream prior to sale if present in sufficient quantities. Some examples are butane, ethane, pentane, propane, and natural gasoline. However, if they remain, the gas stream's heating value will improve, resulting in a higher price to the producer.

With so much at stake, you need a partner you can rely on to advise, consult, and procure the absolute best equipment. That's Petrogas Field Services. Contact us here.