Abstract

ABSTRACT Oilfield polymers such as HEC (Hydroxyethyl Cellulose) and Xanvis™ (Xanthan Gum) solutions are filtered to remove microgels and minimize formation plugging. Mechanical and hydraulic shearing of the gel alter the rheology of the polymers. Field data on various concentrations of HEC and Xanvis show the effects of each shearing mechanism on polymer viscosity, sand fall rate, and leakoff. A guideline for the on-site evaluation of the quality of sheared and filtered HEC is presented so that excessive shearing and unnecessary degradation of the gel can be recognized and prevented.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.