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 Dream
Field Gas Conditioning System

The Pegasus Dream is a next generation mechanical refrigeration unit (MRU) and refrigerated Joule-Thomson (RJT) unit.

Building on more than a decade of mechanical refrigeration experience, the Pegasus Dream incorporates Pioneer’s latest features and technological innovations in a robust field proven platform.

The Pegasus Dream is provided in a ruggedized 30’ skid package, enabling rapid deployment at field locations. It accepts associated gas from a 100 to 585 PSI source and provides up to 4 MMscfd of gas processing capacity. The system can be easily paralleled to provide even greater capacity.

Flyer – Pegasus Dream

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PEGASUS DREAM FLYER

4 MMscfd

Conditioned fuel gas

30’

Skid package

100 - 585

PSI source

Pegasus Dream - Applications

The Pegasus Dream is ideally suited for today’s high performance gas conditioning applications, including:

FRAC FLEET FUELING

FIELD GAS FOR PRODUCTION FACILITIES

POWER GENERATION & DATACENTERS

CNG PRODUCTION

FLARE GAS CAPTURE

MODULAR GAS PROCESSING PLANTS

Pegasus Dream Gas Conditioning - Features & Capabilities

High Performance - Conditions most field gas to a CAT Methane Number of 70+.

Large Capacity - Provides up to 4 MMscfd of gas processing with extreme turndown. Designed for easy paralleling to provide whatever gas processing capacity may be required.

High Availability – Proprietary software and robust hardware enables high availability with load balancing and failover, greatly improving economic return while being ideal for mission critical applications like datacenters.

Wide Operating Pressure – 80 to 600 PSI. Allowing operation without front end compression for less challenging applications, while enabling extremely high fuel quality and throughput when higher pressure is made available.

Universal Applicability – Supports lean and rich burn reciprocating engines as well as turbine applications.

Robust Construction – Built tough to withstand rough oilfield environments and the punishment of regularly occurring deployments and redeployments. Unique design elements enable no derate in extreme heat or cold. Highly reliability electrical actuators are used throughout the system and the electrical cabinets are external to the classified zone, eliminating the need for temperamental instrument air.

Highly Mobile – The Pegasus Dream is a 30’ long skid-based system with quick and easy disconnects. It is designed to travel with frac fleets from site to site. With appropriate planning, staging and sparing; teardown, transport and setup can be achieved in less than 24 hours.

Liquid Return or Optional NGLs – The Pegasus Dream can return liquid residue to a return line (if available). Alternatively, a stabilizer module can be added to the system, providing the flexibility to produce a truckable Y-grade NGL product if desired.

Autonomous – Leveraging Pioneer's sophisticated control software, the Pegasus Dream 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 troubleshooting. Status and alerts can be set to automatically push to relevant stakeholders via text message and email.

Additional Functionality – Fuel filtration, heating & gas manifolding can be provided with the Pegasus Dream through the addition of a separate, Pioneer built, stand-alone module (Field Gas Filtering, Heating & Manifolding Skids) , or a Pioneer built stand-alone CNG Super Blender skid.

Safe – Built for full compliance with all relevant oilfield equipment standards, including ASME code stamped vessels, UL 508-A rated electrical panels, and Class 1 Div 2 compliance, the design has also been subjected to a rigorous HAZOP process. The Pegasus Dream can be connected on each site with the customer's systems for permissives and emergency stop controls.

Pegasus Dream
Superior Performance in Field Gas Conditioning

Providing a wide performance envelope, the Pegasus Dream can operate over input pressures between 100 and 585 PSI and can produce conditioned fuel gas in flow rates up to 4 MMscfd. Indicative performance is shown above for a typical 1,350 BTU HHV gas sample from the Permian Basin. End users can select the combination of input pressure and desired throughput to achieve their desired methane number target.

Pegasus Dream units are designed to be paralleled to enable as much capacity as desired. For most dual fuel Tier 4 engines, a CAT methane number of 65 or greater provides optimal diesel substitution rates while ensuring minimal or no engine derate. The Pegasus Dream delivers.

Pioneer offers a complimentary analysis using your gas composition and our proprietary HYSYS equipment model, providing an accurate snapshot of Pegasus Dream 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 Dream™ is Pioneer Energy’s flagship next-generation mechanical refrigeration unit (MRU) designed for high-performance field gas conditioning. It removes heavy hydrocarbons and water from raw field gas, producing a consistent, high-quality fuel gas while optionally recovering valuable liquids. Building on more than a decade of refrigeration experience, the Pegasus Dream incorporates advanced hardware design and proprietary control software to deliver higher methane number targets, wider operating flexibility, and improved economics across demanding oilfield and power generation applications.

The Pegasus Dream is ideal for high-performance gas conditioning applications, including: • Frac fleet fueling • Field gas for production facilities • Power generation and datacenters • CNG production • Flare gas capture • Modular gas processing plants Its wide pressure envelope, high methane number capability, and large throughput capacity make it suitable for both lean and rich burn engines as well as turbine applications.

The Pegasus Dream is designed for higher performance applications requiring: • Higher methane number targets (CAT Methane Number 70+) • Wider operating pressure range (100–585 PSI) • Greater processing capacity (up to 4 MMscfd) • Support for Tier 4 dual-fuel engines and mission-critical applications such as datacenters While the Pegasus LP is optimized for moderate conditioning at lower pressures and Tier 2 engines, the Pegasus Dream provides expanded capability, flexibility, and economic impact in more demanding environments.

Pegasus Dream
Field Gas Conditioning System