Clay swelling and fines migration are silent production killers - they close off the permeability you worked to create, long after the stimulation program is complete. STIMWRX brine-based and polymer systems lock the formation in place, protecting your investment for the long term.
Fines Migration and Clay Swelling Addressed in a Single Engineered Program
Designed for Both Pre-Treatment Conditioning and Post-Stimulation Protection
Secondary Damage - Chemistry Engineered to Break Cleanly Without Residue
The wrong stabilizer applied to the wrong clay type can accelerate damage rather than prevent it. STIMWRX identifies the specific clay mineralogy of your reservoir before any chemistry is selected - because Kaolinite, Montmorillonite, Illite, and Chlorite each require a fundamentally different treatment approach.
Migrates as booklet-shaped particles under high flow velocity, bridging pore throats and causing rapid permeability decline. Does not swell with water but is highly susceptible to fines migration.
The most water-sensitive clay - can swell up to 20 times its dry volume when contacted with fresh or low-salinity water. Even small concentrations can cause catastrophic permeability reduction.
Forms fine, hair-like fibers that detach from pore walls under flow stress and migrate to plug pore throats. Moderate water sensitivity but highly damaging once mobilized due to fiber geometry.
Extremely acid-sensitive - reacts with HCl to release iron and form gelatinous precipitates that plug pore throats. Requires careful acid system selection and iron control when present.
For water-sensitive reservoirs where fresh water contact would trigger immediate clay swelling, STIMWRX designs brine-based stabilizer programs that condition the formation ahead of treatment. By matching the ionic strength of the treatment fluid to the formation water, we prevent the osmotic shock that causes Montmorillonite and mixed-layer clays to expand.
These systems are particularly critical in tight sandstone completions where even minor permeability reduction from clay swelling can eliminate the economic case for stimulation entirely.
Where brine conditioning manages swelling clays ahead of treatment, polymer stabilizers address the migration risk that follows. STIMWRX polymer systems adsorb onto clay particle surfaces and pore walls, reducing surface energy and physically anchoring Kaolinite booklets and Illite fibers in place during production.
By reducing the surface energy of clay particles, our chemistry locks fines in place and prevents the progressive permeability decline that causes production to taper off weeks or months after an otherwise successful stimulation program.
Our technical team will identify the specific clay types present in your reservoir before any chemistry is selected - ensuring the stabilizer program is matched to your formation's actual damage mechanism, not a generic formulation.