FloMaster

FloMaster CS – Controlled Fluid Flow for Superior Cementing Performance

Precision Pressure Management | Consistent Cement Placement | Proven Operational Results

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The FloMaster CS is PDG’s innovative casing-deployed fluid-control tool, engineered to overcome many of the traditional challenges encountered during primary and remedial cementing. Installed as a bespoke pup-joint complete with integrated FloMaster modules, the tool acts as a downhole flow regulator, ensuring uniform displacement, controlled ECD and dependable cement placement throughout the entire operation.

Developed through extensive R&D and validated in multiple field trials, FloMaster CS gives operators something they have never had before—full control over annular fluid movement and surface pressure responses during the critical cementing phase.

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Why FloMaster CS?

Traditional cementing often relies on pump performance alone to manage fluid placement. Variations in flow, pressure drops and uncontrolled free-fall can cause channelling, losses and cement contamination. The FloMaster CS changes that dynamic.

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Key Advantages

• Regulates fluid flow and circulating pressure downhole, keeping operations on design

• Improves mud removal and cement displacement efficiency, ensuring high-quality zonal isolation

• Maintains positive and consistent surface pressure signatures throughout the displacement phase

• Mitigates loss-circulation risks through controlled annular flow and reduced free-fall conditions

• Ensures accurate plug placement and prevents flash setting

• Allows full control of flow rate regardless of available pump capacity

• Simple to deploy, made up offline and run as part of the BHA

• Drillable design – easily removed using a standard PDC bit

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Tool Architecture & Operating Principle

FloMaster CS contains a series of precision-engineered orifices that act as a flow-path regulator, slowing uncontrolled fluid movement while maintaining a predictable differential pressure response.
The number of modules used determines the level of flow control (“F-Factor”), enabling the system to be tailored to each well program.

Technical Highlights

• No moving parts, no valves, no dependency on mechanical activation

• Modules permanently integrated within the casing pup-joint for maximum reliability

• Designed and built to match customer tubular requirements (size, grade, weight & thread)

• Available from 7"–20" casing sizes

 

Cost Efficiency

Poor displacement or multiple cementing attempts can dramatically increase non-productive time.
Example rig economics indicate that typical cementing operations may double or triple due to repeated jobs or losses. FloMaster CS mitigates these risks by increasing first-time success.

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Applications

• Primary cementing of intermediate and production casing

• Extended-reach and high-angle wells

• Loss circulation environments

• Plug setting operations requiring precise height control

• P&A, side-track and kick-off applications (via DP variant)

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Bringing Innovation to Well Integrity

The FloMaster CS is a proven, practical technology that enhances cementing reliability—removing guesswork, reducing risk and supporting long-term zonal isolation integrity.

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Let PDG help you take control of your cementing operations.