US 12,134,940 B2
Wear resistant tubular members and systems and methods for producing the same
Dan William Morgan, Navasota, TX (US)
Assigned to NATIONAL OILWELL VARCO, L.P., Houston, TX (US)
Filed by National Oilwell Varco, L.P., Houston, TX (US)
Filed on May 2, 2023, as Appl. No. 18/310,690.
Claims priority of provisional application 63/346,032, filed on May 26, 2022.
Prior Publication US 2023/0383612 A1, Nov. 30, 2023
Int. Cl. E21B 17/10 (2006.01); E21B 17/042 (2006.01); E21B 17/22 (2006.01)
CPC E21B 17/1085 (2013.01) [E21B 17/042 (2013.01); E21B 17/22 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A tubular member, comprising:
a central axis, a first end, a second end opposite the first end, a radially outer surface extending axially from the first end to the second end, and a radially inner surface extending axially from the first end to the second end, wherein the radially inner surface defines a throughbore extending axially from the first end to the second end;
a first connector at the first end;
a second connector at the second end;
a tubular region axially positioned between and axially spaced from the first connector and the second connector;
a first upset extending axially from the first connector to the tubular region, wherein the first upset has an internal transition within the throughbore that increases an inner diameter of the throughbore when moving axially from the first upset to the tubular region, and wherein the first upset has an external transition on the radially outer surface that decreases an outer diameter of the tubular member when moving axially from the first upset to the tubular region; and
a first wear pad integrally formed on the tubular region, wherein an outer diameter of the tubular member is greater along the first wear pad than along the tubular region.