How to Strengthen Weak and Depleted Zones With RiDrill WS2
Oilfield Solutions · Drilling Fluids
RiDrill™ WS2
Viscous Wellbore Strengthening LCM Pill
Next-generation, mechanically enhanced strengthening pill built for extreme wells. Less product, more PV/YP: a fast seal against filtrate invasion and a stronger near-wellbore where 1st-gen strengtheners fall short.
The near-wellbore is strengthened, reducing incidents of induced losses as drilling continues.
Loading range
7–20 lb/bbl
Varied to hit the target rheology
Rheology
Higher PV/YP
At lower loadings than 1st-gen strengtheners
Base fluids
Clear · WBM · OBM
Seepage through total losses
Severe to total losses?
Pair with
RadiLock™ 3mm
Legion-LCM
Saber-LCM
Arsenal-LCM
CompatibilityCompatible with most drilling fluids, surfactants, weighting agents & LCMs.
What is RiDrill WS2?
RiDrill™ WS2 is the next generation of mechanically enhanced viscous wellbore strengthening LCM pills from Riteks. It is formulated for extreme well conditions and stays stable at temperatures up to 400°F (205°C), which makes it a strong fit for challenging HPHT environments.
Weak and depleted zones are where induced losses tend to start. WS2 is built for those intervals. Reduced loading requirements and advanced rheological properties keep the pill cost-efficient while it maintains viscosity, suspension and premium strengthening performance.
Features and advantages
Seals against filtrate invasionForms a seal that minimizes filtrate invasion and reduces or eliminates losses.
More rheology from less productHigher PV/YP at lower loadings than first-generation strengtheners.
Strengthens the wellboreProvides wellbore strengthening and reduces incidents of induced losses downhole.
Carries your LCMCapable of suspending multiple LCMs in the same pill.
Cleans the holeSweeps and effectively removes cuttings.
Fits the fluid systemCompatible with most drilling fluids, surfactants, weighting agents and LCMs.
Applications
Primary operationsRun it with clear fluids, water-based mud (WBM) or oil-based mud (OBM).
Severe lossesCombine it with Riteks LCMs (RadiLock 3mm, Legion-LCM, Saber-LCM or Arsenal-LCM) to treat severe losses.
Weak or depleted zonesDelivers substantial benefits when strengthening weak or depleted zones.
This is a planning estimate, not a pill design. Riteks designs custom pills at no charge, and the button above sends these numbers with your request.
RiDrill WS2 FAQ
What is RiDrill WS2?
RiDrill™ WS2 is the next generation of mechanically enhanced viscous wellbore strengthening LCM pills from Riteks. It forms a seal to minimize filtrate invasion, strengthens the wellbore, and reduces or eliminates losses.
What temperature is RiDrill WS2 stable to?
RiDrill WS2 is stable at temperatures up to 400°F (205°C), which makes it suited to HPHT environments.
What is the loading range for RiDrill WS2?
The loading range is 7 to 20 lb/bbl, varied to hit the target rheology. RiDrill WS2 delivers higher PV/YP at lower loadings than first-generation strengtheners.
Which drilling fluids can RiDrill WS2 be used with?
It is used in primary operations with clear fluids, water-based mud (WBM) and oil-based mud (OBM), and it is compatible with most drilling fluids, surfactants, weighting agents and LCMs.
How do you treat severe or total losses with RiDrill WS2?
Combine RiDrill WS2 with a Riteks LCM such as RadiLock 3mm, Legion-LCM, Saber-LCM or Arsenal-LCM. RiDrill WS2 is capable of suspending multiple LCMs in the same pill.
Does RiDrill WS2 help with hole cleaning?
Yes. Along with wellbore strengthening, RiDrill WS2 sweeps and effectively removes cuttings.
