US 12,203,347 B2
Scale/corrosion inhibitor dispenser for wellbore protection
Jamie Cochran, Aberdeenshire (GB); and Jinjiang Xiao, Dhahran (SA)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed on Jan. 27, 2023, as Appl. No. 18/160,412.
Prior Publication US 2024/0254863 A1, Aug. 1, 2024
Int. Cl. E21B 41/02 (2006.01); E21B 41/00 (2006.01)
CPC E21B 41/02 (2013.01) [E21B 41/0042 (2013.01)] 17 Claims
OG exemplary drawing
 
12. A method of dispensing chemicals inside a wellbore, comprising:
creating a scale and corrosion inhibitor program based, at least in part, on wellbore conditions,
wherein creating the scale and corrosion inhibitor program comprises a quantity of inhibitor chemicals, a type of inhibitor chemicals, and a duration of scale and corrosion inhibition;
loading one or more pressure retaining chambers with a volume of inhibitor chemicals and a dissolvable plug;
positioning the one or more pressure retaining chambers into a desired configuration;
connecting the one or more pressure retaining chambers to a bypass line in a Y-tool,
wherein the Y-tool comprises a pump line held in parallel with and connected to the bypass line via a Y-block, and
wherein an electrical submersible pump is disposed within the pump line;
running the Y-tool into the wellbore;
activating the electric submersible pump; and
dispensing inhibitor chemicals over a period of time.