JT (Joule-Thomson) Assembly

The JT assembly provides hydrocarbon dew point control and increased recovery of natural gas liquids (NGL). The JT Plant consists of a gas-to-gas heat exchanger with hot gas bypass, liquid-to-gas heat exchanger, JT valve, cold separator, methanol injection system and control system, all mounted on a single skid.

The Joule-Thomson Assembly makes it easy for you to recover valuable NGL and reduce the water and hydrocarbon dew point of your production stream to pipeline specifications. This self-contained, skid-mounted system can be quickly installed and started up, making it ideal for short-term, space-constrained operating environments.

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Key Benefits

Expedited production drawings available as early as 4-5 business days for faster planning
Single well or multi well designs available along with full pad well designs
Robust skid design and commitment to service help bring operations online quickly
Cost-effective maintenance
Installation and commissioning of the units to facilitate and speed startup
Industry-leading delivery to speed startup

How it Works

The assembly consists of a gas/gas exchanger with hot gas bypass, JT valve, cold separator, methanol injection system and control system.

Following gas/liquid separation and gas dehydration, high-pressure gas enters the assembly through the gas/gas exchanger and chiller for pre-cooling. Methanol is injected to prevent formation of hydrates, and the raw natural gas passes through a JT valve. The resulting pressure drop causes expansion of the gas and a significant temperature reduction due to the Joule-Thompson effect.

The cooled gas is routed to the cold separator to remove the condensed NGL. The outlet gas from the cold separator is routed through the gas/gas exchanger for inlet cooling. The NGL from the cold separator is routed through the inlet NGL/gas exchanger and then to a separate optional pressurized NGL storage tank.