US 12,296,412 B2
Work string tubing connection restoration
Robert F. Miller, Cleveland, OH (US); James D. Allen, Cleveland, OH (US); and Steven L. Stefancic, Cleveland, OH (US)
Assigned to Postle Industries, Inc., Cleveland, OH (US)
Filed by Postle Industries, Inc., Cleveland, OH (US)
Filed on Mar. 28, 2023, as Appl. No. 18/127,205.
Application 18/127,205 is a division of application No. 16/507,886, filed on Jul. 10, 2019, granted, now 11,612,948.
Application 16/507,886 is a division of application No. 15/831,523, filed on Dec. 5, 2017, granted, now 10,751,824, issued on Aug. 25, 2020.
Claims priority of provisional application 62/432,086, filed on Dec. 9, 2016.
Prior Publication US 2023/0347438 A1, Nov. 2, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. E21B 17/042 (2006.01); B23K 9/00 (2006.01); B23K 9/04 (2006.01); B23K 9/167 (2006.01); B23K 9/173 (2006.01); B23K 9/18 (2006.01); B23K 35/24 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/22 (2006.01); C22C 38/26 (2006.01); C22C 38/38 (2006.01); C23C 30/00 (2006.01); E21B 17/00 (2006.01); G01R 31/28 (2006.01); B23K 101/04 (2006.01); B23K 103/04 (2006.01); C22C 38/18 (2006.01); E21B 17/10 (2006.01)
CPC B23K 9/0035 (2013.01) [B23K 9/0026 (2013.01); B23K 9/048 (2013.01); B23K 9/167 (2013.01); B23K 9/173 (2013.01); B23K 9/18 (2013.01); B23K 35/24 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/22 (2013.01); C22C 38/26 (2013.01); C22C 38/38 (2013.01); C23C 30/005 (2013.01); E21B 17/00 (2013.01); E21B 17/042 (2013.01); G01R 31/2822 (2013.01); B23K 2101/04 (2018.08); B23K 2103/04 (2018.08); C22C 38/18 (2013.01); E21B 17/1078 (2013.01); E21B 17/1085 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A restored worn tubing that can be reused in well operations; said worn tubing comprising a tube body, a box located at one end of said tube body and a threaded pin member located at an opposite end of said tube body; said box has a base body with a base outer surface; said base body has a base body front end, a base body back end, a cavity and threads located in said cavity; said base body has a maximum diameter that is greater than a diameter of said tube body that is located adjacent to said base body; said threaded pin member includes an upset portion, a rear end of said upset portion that is connected to said tube body, and a threaded region that extends from a front end of said upset portion; said upset portion has a maximum diameter that is greater than a diameter of said threaded region of said pin member; said maximum diameter of said upset portion is greater than said diameter of said tube body that is located adjacent to said upset portion; and
wherein said tubing includes I) a first layer of a hardfacing metal on said base outer surface of said box such that an outer diameter of said box is about 90-200% an OEM outer diameter of said box; said base outer surface has a diameter that is less than 90% of an OEM diameter of said box prior to said first layer of said hardfacing metal being applied to said base outer surface; and wherein said box is not disfigured or damaged after application of said hardfacing metal to said base outer surface of said box; and/or II) a first layer of a hardfacing metal on an upset outer surface said upset portion of said threaded pin member such that an outer diameter of said upset portion is about 90-200% an OEM outer diameter of said upset portion; said upset portion of said threaded pin member is less than 90% of an OEM outer diameter of said upset portion prior to said first layer of said hardfacing metal being applied to said upset portion; and wherein said threaded region is not damaged after application of said hardfacing metal to said upset outer surface said upset portion of said threaded pin member; and
wherein said first layer of said hardfacing metal has been applied to said outer surface of said box from a direction from a front end of said box towards a back end of said box, and/or said first layer of said hardfacing metal has been applied to said outer surface of said upset portion of said threaded pin member in a direction from a front end of said upset portion to a back end of said upset portion.