
FloMaster
FloMaster DP — Precision Cement Plug Placement for P&A Success
Controlled Fluid Flow | Accurate TOC | Reduced Losses & NPT | Reusable & Cost-Effective
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When undertaking Plug & Abandonment operations, precision cementing is critical to achieving regulatory compliance and long-term well integrity. Inconsistent fluid displacement, uncontrolled free-fall, loss-circulation events or flash-setting can lead to uncertainty in plug top-of-cement (TOC), necessitating costly redrills, re-runs and verification operations.
FloMaster DP is PDG’s drill-pipe-deployed flow-control tool engineered specifically to overcome these operational challenges. Installed as a custom pup joint with integrated FloMaster modules, the tool regulates fluid flow at the lower end of the drill pipe to ensure consistent and controlled annular displacement during cement plug placement — improving the likelihood of first-time success.
Purpose-Built for P&A
The DP-conveyed version of FloMaster is designed for plug & abandonment, side-tracking and kick-off operations.
By controlling annular fluid behaviour in real time, the tool provides operators with a predictable, measurable displacement response, enabling reliable barrier formation across all cementing regimes.
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Key Benefits for P&A Campaigns
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Consistent, uniform annular flow throughout circulation and cementing, reducing channelling and contamination.
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Accurate and repeatable TOC indication enabled by positive surface pressure signature throughout the job.
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Control of cement free-fall, eliminating U-tube effects for precise plug height.
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Reduced losses and improved ECD management, enabling controlled pressure at formation-weak zones.
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Mitigation of premature or flash setting through controlled rate and turbulence.
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Minimal risk, operational simplicity, compatible with standard rig procedures — made up like any pup joint.
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Compatible with foam-ball cleaning, providing pressure signature confirmation.
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Reusable, simple and reliable with no moving parts and no valving mechanisms.
Technical Features
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Flow control delivered through precision-engineered orifice modules acting as a down-hole regulator.
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Positive surface pressure indication showing when fluids hit and pass the tool for clear operational visibility.
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Differential pressure curves configurable by number of modules (F-factor). Example graph showing performance is available upon request.
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Available in 3.5”, 5” and 5.5” DP variants and fully bespoke to weight, grade & thread.
Why FloMaster DP Delivers Value for P&A
P&A operations often suffer from uncertainty around plug position, losses and rework. By controlling fluid movement rather than relying solely on pump capacity, FloMaster DP provides a predictable, high-confidence method of achieving barrier objectives, reducing rig time exposure and lowering lifecycle abandonment cost.
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Summary
FloMaster DP gives full control of cement plug placement, ensuring a measurable and consistent plug height with improved displacement efficiency. The technology supports well-abandonment assurance and delivers lower NPT exposure for operators planning P&A or remedial cementing activities.
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A reliable, reusable and cost-effective tool designed to bring confidence and discipline to P&A cementing.

