US 12,066,138 B2
Sealant injection system for scraper trap door
Mohanned Tarabzouni, Dhahran (SA)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed on Feb. 10, 2022, as Appl. No. 17/650,626.
Prior Publication US 2023/0250913 A1, Aug. 10, 2023
Int. Cl. F16L 55/46 (2006.01); F16L 55/10 (2006.01); F16L 55/175 (2006.01); G01M 3/00 (2006.01)
CPC F16L 55/175 (2013.01) [F16L 55/1018 (2013.01); F16L 55/46 (2013.01); G01M 3/00 (2013.01); F16L 2201/30 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A scraper launcher, comprising:
a body comprising a rim;
a trap door having a first surface and a second surface, opposite the first surface, wherein an interfacing portion of the second surface interfaces with an interfacing surface of the rim when the trap door is closed against the rim;
a seal provided between the interfacing portion of the trap door and the interfacing surface of the rim; and
a sealant injection system, wherein the sealant injection system comprises:
sealant passages formed through the scraper launcher, fluidly communicating an exterior of the scraper launcher to an interior of the scraper launcher; and
an injection fitting in communication with the sealant passages.