SurFrac® - Surfactant-based Fracturing Fluids

Typical Properties and Field Applications

SurFrac technology was commercialized in 2012 successfully and has been applied in various oil and gas fields in the world. It has been proved to be effective in treatment of tight sandstone reservoirs with the following conditions:

Temperature:
 BHST 65‑275°F (18‑135°C)
Typical gel loading:
 3‑10 vol.%
Mix‑water:
 Fresh or salt water, seawater, heavy brine
Further information about field applications is described in documented “Case History of SurFrac Technology”.
Typical properties of SurFrac fluids are shown in the following Table.

Properties of Typical Fracturing Fluids at the Same Testing Conditions

Fluid Borate X‑linked Guar SurFrac
Leak‑off coefficient Ct, mL/(inch2 × min1/2) 0.08 0.37
Retained permeability, % 28 62
Retained conductivity, % 36 82
Friction pressure ‑ About 50% less than X‑linked guar

Precautions and HSE Considerations

Surfactant gelling agent KHF041 in SurFrac systems play the most important role in fluid and treatment design. In addition, clay stabilizer (KHF002, KHF002L and KHF002D) and SurFrac breaker (KHF017) are often used in SurFrac systems for better fluid performance.

The laboratory procedures, quality assurance program and guidelines for field mixing and handling of SurFrac systems are described in SurFrac fluid manual.

Refer to the technical sheet and SDS of the respective product for the health, safety and environmental information of each product.