US 12,168,914 B2
Systems and methods of production tubing chemical injection
Abdulaziz Khaled Albassam, Tanajib (SA); and Wail Khalid Aljehani, Tanajib (SA)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed on Feb. 9, 2023, as Appl. No. 18/167,014.
Prior Publication US 2024/0271505 A1, Aug. 15, 2024
Int. Cl. E21B 43/12 (2006.01); E21B 33/068 (2006.01); E21B 34/10 (2006.01); E21B 37/06 (2006.01)
CPC E21B 37/06 (2013.01) [E21B 33/068 (2013.01); E21B 34/10 (2013.01); E21B 43/126 (2013.01); E21B 43/128 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A well system, comprising:
a wellhead arranged atop a wellbore;
production tubing extending from the wellhead into the wellbore and thereby defining an annulus between the production tubing and an inner wall of the wellbore;
one or more fixed injection ports defined in the production tubing and in direct fluid communication with an interior of the production tubing; and
a chemical injection system including:
one or more chemical conduits extending from the wellhead within the annulus and directly coupled to the one or more fixed injection ports and thereby placing the one or more chemical conduits in direct fluid communication with the interior of the production tubing;
a chemical injection line extending from a chemical storage tank and in fluid communication with the one or more chemical conduits via the wellhead; and
a pump arranged in the chemical injection line and operable to convey one or more chemicals from the chemical storage tank and into the production tubing via the one or more chemical conduits.