Treating Field Gas for Dual-Fuel & E-Fleets
When using field gas to power dual-fuel engines, it is imperative that the natural gas is properly processed or the whole operation can fail. CROFT offers solutions for separation, dehydration, and BTU reduction, which are all crucial steps to making field gas suitable for powering dual-fuel engines and e-fleets.
Separators & Coalescing Filters
Prevents Slugging and Removes Particles
When treating field gas for use in high-speed engines, it is important to have proper separation in order to prevent slugging and to remove unwanted particulates from the gas stream. This can be achieved with CROFT's separators and coalescing filters.
Separators prevent slugs from entering the processing equipment downstream. CROFT offers horizontal and vertical separators in both two-phase and three-phase designs.
Coalescing filters remove fine particles such as dust or mist that are too small for a separator to remove. This level of filtration for dual fuel and e-fleets will increase the longevity of the engine life.
Separators and coalescing filters can be added to all-in-one compact skid packages for easy transportation.
Dehydrates Gas with Zero Emissions
Dehydrating your field gas will prevent hydrate formation and corrosion. These issues can halt production and decrease the life of e-fleet and dual-fuel engines.
CROFT offers traditional glycol dehydrators as well as our preferred dehydration unit, Passive Dehydration Systems (PDS). The PDS units are solid desiccant dehydration units that provide a safe, emission-free alternative to glycol dehydrators or TEGs.
This dehy unit works by wet gas flowing upward through a series of dry desiccant vessels each containing our specifically formulated enviroDRI® desiccant. This non-hazardous product absorbs the moisture and dissolves into a brine solution that is drained to the water storage on location.
CROFT Passive Dehydration Systems can be skid mounted or trailer-mounted with separators and/or coalescing filters for easy transportation.
Fuel Gas Conditioning System
Recovers Valuable NGLs and Reduces BTU
When treating field gas, lowering the BTU removes heavy hydrocarbons and prevents hydrate formation and derating engines. With the reduction in the BTU, we can take otherwise unusable fuel from the wellhead and run dual fuel and e-fleet engines. By separating the NGL’s and dehydrating the gas stream, we remove most of the heavier components that often cause engine issues.
The Fuel-Gas Conditioning System incorporates the Ambient Cooling System to initially cool the gas. The Joule Thomson System then removes hydrates and hydrocarbon liquids, reducing the BTU.
CROFT can custom design a fuel gas conditioning system to include line heaters, meter runs, and separators to provide an all-in-one package for e-frac fleets.
Resources
The Rise of Renewable Natural Gas
This case study will focus on treating fuel gas for gas lifts utilizing CROFT’s Fuel Gas Conditioning System.
Conditioning Fuel Gas for Natural Gas Driven FRAC Fleet | Case Study
This case study will focus on treating fuel gas for gas lifts utilizing CROFT’s Fuel Gas Conditioning System.
Frequently Asked Questions | Separators
Get answers to our client’s most frequently asked questions about our Fuel Gas Conditioning System (FCS)
Frequently Asked Questions | Fuel Gas Conditioning System (FCS)
Get answers to our client’s most frequently asked questions about our Fuel Gas Conditioning System (FCS)
Webinar | JT Systems & Fuel Gas Applications
This webinar provides education on fuel gas and JTs. Our Director of Engineering focuses on cleaning up fuel gas and getting natural gas to pipeline specification.
Glycol Dehydration versus solid Dessicant Dehydration
Absorption vs. Adsorption Dehydrating natural gas, or the removal of water vapor from natural gas can be done by either adsorption or absorption. Croft’s Passive Dehydration System uses adsorption, where water vapor is collected and condensed on the surface with the use of a solid desiccant. Solid desiccants have a high adsorption capacity, a low resistance to gas […]
Frequently Asked Questions | enviroDRI
CROFT Passive Dehydration Systems natural gas dehydration unit that utilizes a specially formulated solid desiccant called enviroDRI to adsorb water from the gas stream. Below are our clients’ most commonly asked questions about enviroDRI. What is enviroDRI? enviroDRI is a deliquescent desiccant pellet about the size of an almond designed to adsorb water from hydrocarbon […]
How a Passive dehydration System Works
This is Croft’s preferred alternative to the glycol unit for natural gas dehydration. Dehydration is a critical process required to meet pipeline specifications.
Natural Gas Driven Drilling And Hydraulic Fracturing
Dual Fuel Powered Drilling Rigs and Frac Spreads Many cost-conscious oilfield companies have made the switch to either natural gas or dual-fuel, also referred to as bi-fuel, which is a mixture of diesel and natural gas. Dual-fuel engines run on a combination of diesel and natural gas, giving companies the flexibility to choose which fuel […]
Purring Compressors with FCS
Croft has just installed a Fuel-gas Conditioning System (FCS) for a new client in the Eagleford and is already showing excellent results. The unit, our FCS-500, takes the high pressure/high temperature gas from the discharge of the compressor and cools, separates, dehydrates, reduces the BTU, and reduces the pressure to the required fuel system PSI. The reduction […]
