US 12,422,041 B2
Y-shaped packer
Meiqin Ma, Hebei (CN); Jianbang Sun, Hebei (CN); Xiaojuan Chen, Hebei (CN); Chengang Shi, Hebei (CN); Yasheng Zhang, Hebei (CN); Ting Yin, Hebei (CN); Yongxiao Lei, Hebei (CN); Baoquan Liu, Hebei (CN); and Jiande Tian, Hebei (CN)
Assigned to HENGXIANG TECHNOLOGY INC., LTD, Hebei (CN)
Appl. No. 18/547,516
Filed by HENGXIANG TECHNOLOGY INC., LTD, Hebei (CN)
PCT Filed Feb. 23, 2023, PCT No. PCT/CN2023/077813
§ 371(c)(1), (2) Date Aug. 23, 2023,
PCT Pub. No. WO2023/246144, PCT Pub. Date Dec. 28, 2023.
Claims priority of application No. 202210725470.9 (CN), filed on Jun. 24, 2022.
Prior Publication US 2024/0392879 A1, Nov. 28, 2024
Int. Cl. F16J 15/02 (2006.01); E02D 15/06 (2006.01)
CPC F16J 15/022 (2013.01) [E02D 15/06 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A packer configured to be disposed in an annular gap between an outer barrel and an inner barrel, comprising:
a supporting part, wherein the supporting part is an annular cylinder configured to be fixedly sleeved on an outer wall of the inner barrel;
a plugging part, wherein the plugging part is a circular ring having an inner edge connected with an outer wall of the supporting part and an outer edge tilted upward toward an inner wall of the outer barrel, so that the plugging part and the supporting part form an acute angle therebetween; and
an expansion seal, wherein the expansion seal is annual in shape and is connected with the supporting part at a location above the plugging part,
wherein the supporting part comprises a plurality of supporting blocks, and an inner wall of each supporting block is provided with a curved groove adapted to receive a section of a protrusion on the outer wall of the inner barrel.