US 12,390,884 B2Granted

Textured surface of oil and gas equipment and machining method thereof

AssigneeSouthwest Petroleum University

InventorsLin Zhong, Guorong Wang, Qingyou Liu, Gang Wei, Xia He, Linyan Chen, Gang Hu, Chuan Wang, Zheng Zhang, Zhichao Li, Zixuan Wang, Xiaolong Wu

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Abstract

A textured surface of oil and gas equipment includes a first substrate, an antiwear coating, and a second substrate, and further includes a texture, where the texture includes a first texture and/or 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, the second texture is arranged on a surface of the antiwear coating that is in contact with the second substrate. A method for machining the textured surface of oil and gas equipment is provided, which improves various performances of the oil and gas equipment such as antifriction, wear resistance, and corrosion resistance by combining a coating with a texture, so as to prolong the service life of the oil and gas equipment, increase oil and gas production efficiency.

Claims17

Dependent claims

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.

2 more elements

Dependencies are inferred from the claim text.