Abstract: A system and method for conditioning fuel gas comprises a separator to receive rich gas and to separate NGLs from the rich gas to produce lean fuel gas. A first valve is coupled before the separator to receive the rich gas to expand the rich gas in a throttling or Joule-Thomson effect to reduce the pressure and temperature of the rich gas for the separator. A heat exchanger is coupled before the first valve to transfer heat from the rich gas to the lean fuel gas. The system can further comprise another separator to receive rich gas to separate water from the rich gas to preprocess the rich gas. The system can further comprise a temperature control loop utilizing a slip stream from the separator, a second expansion valve, and another heat exchanger.

Abstract: A natural gas conditioning system for conditioning unconditioned natural gas for use in a gas lift system at a wellbore comprises a series of coolers to receive and cool unconditioned natural gas, and a high-pressure, three-phase separator. The separator receives cooled unconditioned natural gas from the coolers and results in separate flows of conditioned lift gas, waste water and hydro-carbon liquids. The conditioned lift gas can be directed to a first heat exchanger, and the hydro-carbon liquids can be directed to a second heat exchanger. A chiller can be coupled to a third heat exchanger. All the components can be carried by a skid.

Abstract: A lift gas treatment system and method for treating lift gas by a high-pressure separation of heavy hydrocarbons and water from the gas stream to be used as lift gas. The system and method first remove water from the lift gas in a first separator. The lift gas is then cooled in a pair of heat exchangers. A second separator separates natural gas liquids (NGLs) from the lift gas. The NGLs are passed through a valve to reduce the temperature and passed to the second heat exchanger. The lift gas is passed through the first heat exchanger to raise the temperature.

Abstract: A system and method for conditioning fuel gas comprises a separator to receive rich gas and to separate NGLs from the rich gas to produce lean fuel gas. A first valve is coupled before the separator to receive the rich gas to expand the rich gas in a throttling or Joule-Thomson effect to reduce the pressure and temperature of the rich gas for the separator. A heat exchanger is coupled before the first valve to transfer heat from the rich gas to the lean fuel gas. The system can further comprise another separator to receive rich gas to separate water from the rich gas to preprocess the rich gas. The system can further comprise a temperature control loop utilizing a slip stream from the separator, a second expansion valve, and another heat exchanger.

Abstract: A lift gas treatment system and method for treating lift gas by a high-pressure separation of heavy hydrocarbons and water from the gas stream to be used as lift gas. The system and method first remove water from the lift gas in a first separator. The lift gas is then cooled in a pair of heat exchangers. A second separator separates natural gas liquids (NGLs) from the lift gas. The NGLs are passed through a valve to reduce the temperature and passed to the second heat exchanger. The lift gas is passed through the first heat exchanger to raise the temperature.

Abstract: A fugitive gas remediation (FGR) system for eliminating fugitive gas, such as surface casing vent gas produced from the casing head of an oil well, or so-called casinghead or Bradenhead gas, and other fugitive gas sources. An enclosure is positioned at a site with a fugitive gas source, such as a wellhead. A separator is located in the enclosure to remove liquid from the fugitive gas. A catalytic heater is located in the enclosure and coupled to the separator to react with the fugitive gas and produce heat in the enclosure. A pilot gas source can provide pilot gas to the catalytic heater.

Abstract: A natural gas conditioning system for conditioning unconditioned natural gas for use in a gas lift system at a wellbore comprises a series of coolers to receive and cool unconditioned natural gas, and a high-pressure, three-phase separator. The separator receives cooled unconditioned natural gas from the coolers and results in separate flows of conditioned lift gas, waste water and hydro-carbon liquids. The conditioned lift gas can be directed to a first heat exchanger, and the hydro-carbon liquids can be directed to a second heat exchanger. A chiller can be coupled to a third heat exchanger. All the components can be carried by a skid.