Phorcys™ Subsea Pigging and Hydrotesting Units

Offering greater flow and pressure subsea with unprecedented efficiency, accuracy, and versatility

OVERVIEW

The Halliburton Phorcys™ 3 subsea pigging and hydrotesting unit has an unrivaled track record for precommissioning, maintaining, and decommissioning subsea pipeline and well systems. Incorporating lessons learned from over 20 years of subsea operations, it uses field-proven filtration, flow control, and pumping systems to achieve industry-standard flowrates and pressures.

The Phorcys 3 skid is equipped with a hydraulic hot stab, which allows it to be powered and controlled by most work-class remotely operated vehicles (ROVs).

The chemical injection and logging systems give accurate and reliable control of chemicals. The on-board data logger collects all relevant job parameters, and selected information is shown on a digital display panel that can be viewed by the ROV operator.

The Phorcys 3 unit is compact and simple to operate, and incorporates reliable and proven mechanical, hydraulic, and electrical systems.

High-quality corrosion-resistant alloys are used for the majority of components, including the loading arm, pipework, valves, and fittings. The Phorcys 3 unit can be stored subsea for extended periods between work scopes with no degradation in reliability or performance.

Phorcys™ 3 Subsea Pigging and Hydrotesting Unit

APPLICATIONS

» Precommissioning of new subsea pipelines, risers, and associated systems

» Maintenance and decommissioning of existing pipeline systems

» Flooding, flushing, pigging, hydrotesting, leak testing, chemical injection, ballasting

» Subsea pumping operations for other applications, including well maintenance and stimulation

FEATURES

» Seabed flooding, pigging, and hydrotest skid with integral pumping system

» High-flow and high-pressure pumping systems powered by ROV hydraulics

» Collapse-resistant flooding 3-inch loading arm

» Integral filtration and flow control » Onboard data logging system » Mobilized as two skids, connected together and deployed subsea as a single lift

BENEFITS

» Free-flooding and hydrotesting hold can be autonomous, without a vessel or ROV, thus optimizing schedules and reducing costs

» Proven design with long track record » Compatible with most work-class ROVs with fitment of hydraulic hot stab

» Compact footprint when assembled » Can be “wet stored” subsea for extended periods

Phorcys 3 Specification

Parameter Details

Frame Design Code DNV 2.7-3

Gross Weight Fully Laden17,350 kg in air 7,800 kg in seawater

Length4.0 meters 6.01 meters with mudmats

Width

2.3 meters4.7 meters with mudmats and loading arm

Height

5.1 meters with control panel8.0 meters hook height

Maximum Water Depth 3,000 meters

Chemical Storage 6 x 1,000 liters

Boost Pump Maximum Pressure 10.0 bar

Boost Pump Performance 1,800 liters/minute at 1 bar

Low-Pressure/High-Flow Pump 120 liters/minute at 90 bar

Medium Pressure/Flow Pump 30 liters/minute at 800 bar

High-Pressure/Low-Flow Pump 0.5 liters/minute at 1,000 bar

Chemical Dosing Pump 50–500 ppm at 0.5–120 liters/minute

Recommended ROV Hydraulic Supply 180 liters/minute at 210 bar

Pipeline and Process Services

OVERVIEW

Halliburton’s Phorcys™ 3.5 is the latest innovative technology for pre-commissioning, maintaining and decommissioning of subsea pipeline and well systems.

Incorporating lessons learned from over 20 years of subsea operations with advanced subsea technology, the Phorcys 3.5 unit is more reliable, faster, and easier to set up, run, and maintain than previous models. It combines field-proven pumping systems with the latest ROV industry technology to achieve unrivaled flow rates and pressures. Designed, specified, and built in conjunction with a leading ROV manufacturer to produce the most innovation focused precommissioning and pumping unit available today.

The Phorcys 3.5 seabed flooding skid and ROV underslung modules offer the flexibility to be operated individually or docked and latched together magnetically, minimizing hydraulic power requirements.

Our advanced chemical injection and dual redundancy logging systems give unrivaled accuracy and reliability while reducing the need to use excess chemicals.

The onboard multiplex system allows data transfer, data logger setup and control to and from the surface, independent of the ROV controls.

The Phorcys 3.5 unit is compact, easy to mobilize, configure, operate, and maintain. The use of finite element analysis in the design process has minimized vibration and wear in our systems, thus reducing upkeep and prolonging equipment life. The high-quality and corrosion-resistant alloy loading arm uses a rugged standardized bearing set, allowing an easier and more reliable connection.

Phorcys™ 3.5 Subsea Pigging and Hydrotesting Unit

APPLICATIONS

» Precommissioning of subsea pipelines, risers, and piping systems

» Flooding, flushing, pigging, pressure testing, chemical injection, ballasting

» Pumping for subsea pipelines and wells, especially for maintenance and decommissioning

FEATURES

» Seabed flooding skid and ROV underslung pump module

» Pump module direct-coupled to ROV hydraulics for more power and efficiency

» Smaller, lighter, stronger, and easier to maintain than previous generations of this unit

» Improved filtration and flow control » Intelligent dual-module logging system with 0.01 percent full-scale accuracy

BENEFITS

» Base module and pump skid can operate separately or together for greater versatility

» Higher performance reduces schedule time and cost

» Quicker setup and reliability, as well as simplified maintenance, to provide more uptime

» Faster, lower-cost mobilization and demobilization

Phorcys 3.5 Specifications

Parameter Seabed Flooding Skid ROV Underslung Unit

Frame Design Code DNV 2.7-3

Gross Weight Fully Laden 9,600 kg in air1400 kg in air35 kg in seawater

Length3.8 meters 5.8 meters with mudmats

2.47 meters

Width

2.0 meters4.0 meters with mudmats

2.02 meters

Height2.0 meters 0.92 meters

Maximum water depth 3,000 meters 3,000 meters

Chemical Storage 4 x 800 liters 120 liters

Boost Pump Maximum Pressure 14.5 bar

Boost Pump Performance

1,800 liters/minute at 1 Bar500 liters/minute at 13 bar

Low-Pressure/High-Flow Pump120 liters/minute at 90 bar

Medium Pressure/Flow Pump30 liters/minute at 800 bar

High-Pressure/Low-Flow Pump0.5 liters/minute at 1,000 bar

Chemical Dosing Pump50- 500 ppm at 0.5-120 liters/minute

Hydraulic Fluid

Hydraulic mineral oil ISO VG 22/32

Max. Hydraulic Supply Flow/Pressure

160 liters/minute at 207 bar

Pipeline and Process Services

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