Oil & Gas Industry
For more than 55 years Nash has provided reliable liquid ring pumps, compressors and systems to the oil & gas industry. NASH Liquid Ring Technology is cool running and offers safe, non-polluting gas and vapor management. Our liquid ring vacuum and compressor systems can handle saturated inlet gas streams, explosive gas mixtures, dirty abrasive gas mixtures and unpredictable streams that change with process variables.
From flare gas recovery to enhanced oil recovery and fuel gas boosting, Nash offers hardworking products and systems with the performance and reliability you need. Nash continues to prove Smarter Works Harder with ongoing innovations that increase production and extend product life.
Need reliable performance from hardworking product? You need Nash.
Oil & Gas Brochure
Offshore Oil & Gas Production (EMEA)
Coal Bed Methane Gas RecoveryCompatible Products
This application is found in coal mines where two forms of gas may be produced. One gas is from microorganisms feeding off the coal, and the other gas is from gas deposits in the mines. By drilling into the coalmines, and locating sufficient gas deposits, the gas can be recovered through vacuum, depending on suction and discharge pressures at the well head. The gas, once recovered by the low-pressure vacuum, is then compressed by high-pressure compressors to a pipeline for processing or used for cogeneration, etc. Normally the methane gas recovered is very clean but significant quantities of liquids may be entrained in the gas. This gas is recovered for a number of uses, including cogeneration and gas plant processing for redistribution of sale.
Crude Oil Vacuum DistillationCompatible Products
Crude oil is processed to produce gasoline and other hydrocarbon fuels via atmospheric and/or vacuum distillation in refineries.
This application involves applying a vacuum to a crude oil distillation column. The combination of heat and vacuum separates the crude oil into different components based on their boiling temperature (distillation). Its purpose is to enhance the recovery of the lighter components, such as gasoline. Vacuum distillation is more energy efficient than atmospheric distillation.
Enhanced Oil RecoveryCompatible Products
Enhanced oil recovery is an upstream process, which includes pulling a vacuum on an oil well to relieve pressure on the well. This allows the oil to flow more freely, increasing oil production. This application may also include associated gas, which is merely the inclusion or recovery of gas at the annulus of the well, with the oil being recovered and the separation of the oil/gas via a separator at the point of recovery, normally at the surface of the well.
Field Gas BoostingCompatible Products
Field gas boosting is the process of boosting low-pressure gas from the wellhead to a high-pressure pipeline. The wellhead gas pressure, below atmospheric pressure or at a relatively low positive pressure, will require a vacuum pump or a low-pressure compressor to extract the gas and to boost it to 15 to 30 PSI above atmospheric pressure. A liquid ring vacuum pump or compressor is used as the first stage, and then delivers the gas to the second stage high-pressure compressor. The high-pressure compressor, usually a rotary screw or reciprocating compressor, delivers the gas to a gas processing plant via a pipeline.
Flare Gas RecoveryCompatible Products
Flare gas, vent gas, tail gas or off gas recovery is the capturing of waste gases during the refining process. No longer is it acceptable to simply dispose of these gases by flaring. NASH liquid ring compressors enable refineries to collect and recover these gases for energy or other recovery purposes. NASH liquid ring technology provides for safe and reliable compression of these explosive and often times dirty gases.
Fuel Gas BoostingCompatible Products
This application involves the utilization of a booster compressor to provide natural gas to a natural gas engine that may be utilized in the gas recovery or compression process.
Offshore PlatformsCompatible Products
Flare gas, vent gas, tail gas or off gas recovery is the process of capturing of waste gases during the extraction process. It is no longer acceptable to simply dispose of these gases by flaring.
NASH liquid ring compressors enable the collection and recovery of these gases for energy or other recovery purposes.
NASH liquid ring technology provides for safe and reliable compression of these explosive and often times dirty gases.
Solvent DewaxingCompatible Products
Filtering or dewaxing is the process of recovering waxy compounds from production of hydrocarbon based oils. By removing waxy compounds from oils, it improves its quality and desirability. Liquid ring vacuum pumps are pulling vacuum on continuously rotating disc or drum type filters that may contain inert nitrogen gas with chilled Methyl Iso-Butyl Ketone [MIBK] solvent. If higher vacuum levels are required, then a combination of a mechanical blower and liquid ring vacuum pumps is selected for this application.
Vapor Recovery/Gas BoostingCompatible Products
This application differs from vent gas recovery in that the vapors recovered are of a relatively fixed composition rather than a variable mixture. A typical application is capturing gases vented from storage tanks. The vacuum level is closely controlled in order to protect the storage tanks. Usually the discharge pressure is relatively low. Often these gases are returned to the process or are liquified and returned to the storage tanks.