What is the Pegasus LP and How Does it Improve Gas Conditioning?

The Pegasus LP is a mechanical refrigeration unit (MRU) designed to condition lower pressure raw field gas by removing heavy hydrocarbons and water. It converts associated gas into a consistent, engine-quality fuel gas and recoverable liquids, and is suitable for use in a variety of oilfield applications.

Is the Pegasus LP only for frac fleets?

No. While it is commonly used for Tier 2 frac fleets, the Pegasus LP is also well suited for other applications using rich burning engines such as production facilities, drilling rigs, compressor fuel, as well as flare gas recovery and tank vapor capture.

What applications is the Pegasus LP suited for?

The Pegasus LP is ideal for frac fleet fueling (Tier 2 fleets), production facility fuel gas, gas lift and field compressor fuel, drilling rig fuel, flare gas capture, and tank vapor capture and monetization.

What is the difference between Pegasus LP and Pegasus Dream?

Pegasus LP processes low pressure gas and produces moderately conditioned fuel gas. Its target fuel quality is CAT methane number 55, suitable for Tier 2 engines. The Pegasus Dream has a wider pressure range, larger capacity and can produce high fuel quality of up to CAT methane number 70, suitable for all engines including Tier 4 engines.

What problem does the Pegasus LP solve?

Raw field gas is often too rich, wet, or inconsistent to be used directly as fuel or monetized efficiently. The Pegasus LP conditions this gas to improve fuel quality for engines and equipment, enable higher diesel substitution, capture valuable liquids, and reduce emissions, flaring, and fuel logistics costs.

Pegasus Mini HP
Field Gas Conditioning System

The Pegasus Mini HP is a Refrigerated JT (RJT) designed for field gas conditioning, providing the removal of heavy hydrocarbons and water from higher pressure raw input gas. It is ideally suited for several applications, including conditioning raw gas from the output of a gas lift compressor, significantly improving gas lift operation and uptime, as well as supplying consistent high-quality fuel for pilots and heater treaters.

The Pegasus Mini HP is provided in a ruggedized 34’ skid package, enabling rapid deployment at field locations. It accepts associated gas from a 800 to 1,200 PSI source and provides up to 330 Mscfd of conditioned fuel gas at a regulated output pressure of 335 PSI and a regulated output temperature. The system can be easily paralleled to provide even greater capacity.

Spec Sheet – Pegasus Mini HP

Field Gas Conditioning System

DOWNLOAD SPEC SHEET

330 Mscfd

Conditioned fuel gas

34’

Skid package

800 - 1,200

PSI source

Pegasus Mini HP - Applications

The Pegasus Mini HP is a good fit for the following applications where a high-pressure gas source is available:

FIELD GAS CONDITIONING FOR GAS LIFT COMPRESSORS, PILOTS & BURNERS

FIELD GAS CONDITIONING FOR PRODUCTION FACILITIES

FIELD GAS CONDITIONING FOR POWER GENERATION

FIELD GAS CONDITIONING FOR DRILLING RIGS

Pegasus Mini HP – Features & Capabilities

Performance – Conditions most higher-pressure field gas to a CAT Methane Number of 65+ with consistent output pressure and temperature.

Capacity – Provides up to 330 Mscfd of output conditioned gas with significant turndown. Easily paralleled to provide whatever fuel gas volume is required for gas lift engines, power generation or other on-site fuel gas consumers.

High Availability – Proprietary software and robust hardware enables high availability, which greatly improves economic return and is essential for mission critical oilfield applications.

Operating Pressure – 800 to 1,200 PSI. Output pressure regulated to 335 PSI.

Robust Construction – Built tough to withstand rough oilfield environments and the punishment of regularly occurring deployments and redeployments.

Highly Mobile – The Pegasus Mini HP is a 34’ long skid-based system with quick and easy disconnects. With appropriate planning and staging; teardown, transport and setup can be achieved in less than 24 hours.

Liquid Return – The Pegasus Mini HP can return liquid residue to a return line, low pressure collection drum, or liquid knockout for use or disposal.

Autonomous – Leveraging Pioneer's sophisticated control software, the Pegasus Mini HP is designed to be easy to operate with simple push button controls, minimizing the required attention of field operations personnel.

Cloud Enabled – Real time status and diagnostic information provided from the onboard SCADA system is made available via cellular, local area network, or Starlink connection and stored in a secure online data historian for future reference. Customer or Pioneer technicians can log in for remote configuration, monitoring & control, and status and alerts can be set to automatically push to relevant stakeholders via text message and email.

Additional Functionality – The system has an onboard heater to allow regulation of the output fuel gas temperature. Additional fuel filtration & gas manifolding can be provided with the Pegasus Mini HP through the addition of a separate stand-alone module (Field Gas Filtering, Heating & Manifolding Skids), or the design can be customized to incorporate these elements onboard.

Safe – Built for full compliance with all relevant oilfield equipment standards, including all ASME code stamped vessels and Class 1 Div 2 compliance, the Pegasus Mini HP design has also been subjected to a rigorous HAZOP process. The Pegasus Mini HP can be connected on each site with the customer's systems for permissives and emergency stop controls.

The Pegasus Mini HP can accept a wide range of input gas compositions at 800 to 1,200 PSI input pressures, providing field gas conditioning and liquids & water removal.

Pegasus Mini HP –Performance in Field Gas Conditioning

For most gas lift compressor engines, a CAT methane number of 65 or greater with consistent fuel pressure & temperature and no free water or condensables enables very good compressor uptime with far fewer maintenance shutdowns. The Pegasus Mini HP was designed to meet this need.

The units are designed to be paralleled to enable as much capacity as desired. The Pegasus Mini HP was designed to meet this need. The unit also excels at conditioning other higher pressure gas streams to produce conditioned fuel gas for drilling rigs, power generation, as well as for typical production facility equipment (heater treaters, separators, other site engines, flare pilots, etc.). The economical Pegasus Mini HP system can provide outstanding economic return through improved equipment uptime and reduced maintenance needs.

Pioneer offers a complimentary analysis using your gas composition and our proprietary HYSYS equipment model, providing an accurate snapshot of Pegasus Mini HP performance to support project economics evaluation.

Frequenty Asked Questions

Overview & Applications Performance & Capacity Liquids Handling & Monetization Mobility & Deployment Operations & Controls Reliability & Safety Integration & Customization Getting Started

The Pegasus Mini HP is a refrigerated Joule-Thomson (RJT) field gas conditioning system designed to remove heavy hydrocarbons and free water from high-pressure raw field gas. It produces clean, dry, and consistent fuel gas at regulated pressure and temperature, making it especially well-suited for gas lift compressors, engines, pilots, heater treaters, and other mission-critical oilfield equipment. By improving fuel quality and eliminating liquid slugs and free water, the Pegasus Mini HP significantly enhances equipment reliability and uptime.

The Pegasus Mini HP is ideal for the following applications where a high-pressure gas source is available: 1. Field gas conditioning for gas lift compressors, pilots and burners 2. Field gas conditioning for production facilities 3. Field gas conditioning for power generation 4. Field gas conditioning for drilling rigs It is particularly effective downstream of gas lift compressors, where consistent fuel quality is essential for compressor performance and reliability.