US 12,404,766 B2
Polymer-based well tracers with tunable release profile
Rajesh Kumar Saini, Cypress, TX (US); Amy J. Cairns, Houston, TX (US); Shitong Sherry Zhu, Waban, MA (US); Ayrat Gizzatov, Winchester, MA (US); Wei Wang, Quincy, MA (US); Mohammed Sayed, Katy, TX (US); and Hooisweng Ow, Woburn, MA (US)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed on Oct. 1, 2024, as Appl. No. 18/903,641.
Application 18/903,641 is a division of application No. 18/295,614, filed on Apr. 4, 2023, granted, now 12,140,021.
Prior Publication US 2025/0027404 A1, Jan. 23, 2025
Int. Cl. E21B 47/11 (2012.01); C09K 8/80 (2006.01)
CPC E21B 47/11 (2020.05) [C09K 8/805 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A method for preparing and using a polymer-based well tracer, comprising:
synthesizing at least one fluoropolymer having a fluorinated group,
wherein the at least one fluoropolymer is synthesized from a polymer and a fluorinated tracer comprising at least one fluorinated compound;
introducing the at least one fluoropolymer and a fluid into a formation via a well,
wherein upon reaction with water and degradation of the at least one fluoropolymer, the at least one fluorinated compound is released;
detecting the at least one fluorinated compound at a surface of the well; and
evaluating at least one property of the well based on detection of the at least one fluorinated compound.