US 12,390,884 B2
Textured surface of oil and gas equipment and machining method thereof
Lin Zhong, Chengdu (CN); Guorong Wang, Chengdu (CN); Qingyou Liu, Chengdu (CN); Gang Wei, Chengdu (CN); Xia He, Chengdu (CN); Linyan Chen, Chengdu (CN); Gang Hu, Chengdu (CN); Chuan Wang, Chengdu (CN); Zheng Zhang, Chengdu (CN); Zhichao Li, Chengdu (CN); Zixuan Wang, Chengdu (CN); and Xiaolong Wu, Chengdu (CN)
Assigned to SOUTHWEST PETROLEUM UNIVERSITY, Chengdu (CN)
Filed by Southwest Petroleum University, Chengdu (CN)
Filed on Sep. 27, 2022, as Appl. No. 17/935,692.
Claims priority of application No. 202111160029.2 (CN), filed on Sep. 30, 2021.
Prior Publication US 2023/0100604 A1, Mar. 30, 2023
Int. Cl. B23K 26/352 (2014.01); C10M 177/00 (2006.01); C10N 30/06 (2006.01); C10N 40/02 (2006.01); C10N 50/08 (2006.01); E21B 17/10 (2006.01)
CPC B23K 26/355 (2018.08) [C10M 177/00 (2013.01); E21B 17/1085 (2013.01); B05D 2350/33 (2013.01); C10N 2030/06 (2013.01); C10N 2040/02 (2013.01); C10N 2050/08 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A textured surface of oil and gas equipment, comprising a first substrate, an antiwear coating, and a second substrate, wherein the textured surface of oil and gas equipment further comprises a texture, wherein the texture comprises a first texture and a second texture; the first substrate and the second substrate are capable of moving relative to each other when operating, the first texture is arranged on a surface of the first substrate that is in contact with the antiwear coating, and the second texture is arranged on a surface of the antiwear coating that is in contact with the second substrate;
wherein before laser machining of the second texture, the surface of the antiwear coating is strengthened and modified by laser to obtain a hard antiwear coating;
wherein the texture comprises a plurality of pits or protrusions, and the plurality of pits or protrusions are distributed and combined in three dimensions to form textured regions; and
wherein the plurality of pits or protrusions of the texture are uniformly and orderly arranged or arranged at intervals.