US 11,703,161 B2
Internal spiral conduit bearing capacity reinforcing device and method for using the same
Qishuai Yin, Beijing (CN); Jin Yang, Beijing (CN); Shanshan Shi, Beijing (CN); Yang Long, Beijing (CN); Qianling Xue, Beijing (CN); and Li Li, Beijing (CN)
Assigned to China University of Petroleum-Beijing, Beijing (CN)
Filed by China University of Petroleum-Beijing, Beijing (CN)
Filed on Jul. 17, 2019, as Appl. No. 16/514,970.
Claims priority of application No. 201811414858.7 (CN), filed on Nov. 26, 2018.
Prior Publication US 2020/0166160 A1, May 28, 2020
Int. Cl. F16L 11/12 (2006.01); E21B 17/22 (2006.01)
CPC F16L 11/121 (2013.01) [E21B 17/22 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A bearing capacity reinforcing device, comprising:
a reinforcing mechanism having a reinforcing body and a reinforcing disc connected to a lower portion of the reinforcing body, a plurality of reinforcing rib plates being spaced apart in a circumferential direction of the reinforcing body and connected to the reinforcing disc; wherein the reinforcing disc is provided with a plurality of accommodating spaces which are spaced apart in a circumferential direction thereof and provided therein with a movable sector plate, respectively, and the reinforcing disc at each of the accommodating spaces is provided with a perforated portion which can be blocked by the sector plate; and
a connecting portion having a male threaded connection end connected to a lower end of the reinforcing body, and a female threaded connection end connected to an upper end of the reinforcing body.