Clsta Clay Stabilizer: Low-Viscosity-Impact Stabilization for Salt-Tolerant Polymer Systems
Explain how Clsta addresses clay swelling and migration in fracturing, acidizing, and injection operations through a non-traditional route, with limited viscosity impact and a defined compatibility boundary for salt-tolerant polymers.
Article Summary
A clay stabilizer must control hydration swelling and particle migration while surviving water washing and remaining compatible with the surrounding fluid system. The article presents Clsta as a clay-stabilizer approach that does not rely on high electrolyte loading. At 0.7% dosage, it meets the relevant technical requirements of China Petroleum standard Q/SY 17013—2024 and is positioned to have a relatively small effect on the viscosity of polyacrylamide solutions, inverse emulsions, and suspensions.
The compatibility boundary is explicit: Clsta is best suited to salt-tolerant polymers such as AM/AMPS copolymers and cannot make a salt-sensitive polymer salt-tolerant. Swelling inhibition, water-wash resistance, viscosity retention, and storage stability should be verified under fixed polymer, salinity, temperature, and shear conditions, with a KCl control recommended.
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