Integrated Viscosity-variable Acid System

Integrated Viscosity-variable Acid, with multi-fluid integration, delayed viscosity change, and on-site preparation. It reduces friction, increases injection rates, slows acid-rock reactions, and redirects flow within fractures, meeting the needs of deep carbonate reservoir acidizing at temperatures up to 200°C.

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8100m

Maximum application well depth.

200℃

Withstand temperatures up to

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Core Product

Thickener

Good viscosity adjustment

Viscosity adjustable from 3~200 mPa·s, low on the surface and high underground

High-temperature resistance

Meets acid fracturing needs for ultra-high temperature reservoirs up to 200℃.

Reduced cost

Mix and inject in time, integrate multiple fluids, minimize waste

Efficient

Strong non-uniform etching from viscosity change, boosting conductivity by 50% over conventional acid

High-performance

Temperature resistance: <200°C

Retardation rate: 95% | Friction reduction: >75%

deep penetration.

Application Cases

The integrated variable - viscosity acid fracturing technology has been applied in multiple regions and wells. It has achieved a maximum well depth of 8,100 meters, withstood temperatures up to 180°C, and provided a drag reduction rate of 75 - 80%. Having been applied in over 30 wells, it enabled the PY3 vertical well to produce 2.1315 million cubic meters of gas per day, making it the first well in the area to exceed two million cubic meters. The technology is now mature.