US 12,241,325 B2
Side pocket mandrel for metered chemical injection
Jawad Zahur, Abqaiq (SA); Mohammed Madan, Abqaiq (SA); and Saud A. Al-Shuwaier, Abqaiq (SA)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed on May 22, 2023, as Appl. No. 18/321,496.
Prior Publication US 2024/0392639 A1, Nov. 28, 2024
Int. Cl. E21B 23/03 (2006.01); E21B 37/06 (2006.01)
CPC E21B 23/03 (2013.01) [E21B 37/06 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A well system, comprising:
production tubing extendable into a wellbore, the production tubing defining a first bore;
a side pocket mandrel interposing upper and lower sections of the production tubing and comprising:
a body that provides a lateral projection extending radially outward from the body, the body including an inner surface defining a second bore extending through the body and in communication with the first bore; and
a pocket defined by the inner surface of the body within the lateral projection, wherein the pocket is a blind bore having an open end and a closed end; and
a chemical vessel insertable into the pocket through the open end, the chemical vessel being operable to discharge an injection fluid stored within the chemical vessel into the production tubing via one or more apertures provided in the chemical vessel.