Bridge it, then seal it
Most wellbore strengthening additives do one job. RiDrill WS-1 is a patent-pending dual-mechanism strengthener that props the fracture and then builds a low-permeability membrane across the formation — so you can drill at lower equivalent circulating densities without giving up stability or strength.
The window keeps getting narrower
Weak and depleted zones are where the drilling window closes. The shale wants mud weight; the sand next to it can't carry it. Guess wrong and it shows up the way it always does — losses, non-productive time, and remedial work on a section that should have been routine.
Conventional wellbore strengthening answers that with bridging: sized particles wedge into the fracture mouth and hold it propped, raising the pressure the formation can carry. It works, and it is only half of what a weak zone needs.
Two mechanisms, one dry grey powder
RiDrill WS-1 bridges like a conventional strengthener, then keeps going. Step through both mechanisms below.
Mechanical membrane
Forms a low-permeability membrane across the formation to strengthen the wellbore and mitigate losses.
- Aids in prevention of gas migration
- Compatible with most muds — Brine, WBM, or OBM
- Customizable rheology, enhanced hole cleaning
- Pairs with Riteks LCMs to treat severe losses
Running a weak or depleted section this quarter?
Request a sampleSize a treatment
Recommended loading runs 3 to 10 lb/bbl. Enter your active system volume and slide to the loading you plan to run.
Planning figure only — confirm loading for your fluid system and hole conditions with Riteks technical services.
Runs in the fluid you already have
RiDrill WS-1 is a dry grey powder that is compatible with most muds. Pick a system to see how it lands.
Brine — compatible. RiDrill WS-1 runs at 3 to 10 lb/bbl and holds performance at 350°F+ (177°C+), with customizable rheology and enhanced hole cleaning.
When losses turn severe
Strengthening the zone and curing an active loss are two different jobs. RiDrill WS-1 pairs with the Riteks LCM line so you can do both in the same fluid system — strengthen the formation, then treat the loss with Legion-LCM, Saber-LCM, or the rest of the Riteks lost circulation portfolio.
Common questions
What makes RiDrill WS-1 a dual-mechanism additive?
It combines a mechanical membrane that forms across the formation to strengthen the wellbore and mitigate losses with a secondary strengthening matrix that takes strengthening further, improving fracture gradients in weak or depleted zones.
What loading should I run?
Recommended loading levels are 3 to 10 lb/bbl. Riteks technical services can help you land on a figure for your fluid system and hole conditions.
How hot can it run?
RiDrill WS-1 is stable at 350°F+ (177°C+).
Which mud systems is it compatible with?
It is compatible with most muds, including brine, water-based mud, and oil-based mud.
Can it be combined with lost circulation material?
Yes. RiDrill WS-1 pairs with Riteks LCMs to treat severe losses.
Does it help with gas migration?
It aids in the prevention of gas migration, and its customizable rheology supports enhanced hole cleaning.
Put RiDrill WS-1 in your next section
Request a sample, pull the technical documents, or talk the section through with the Riteks drilling fluids team.