Patent · US Active

Downhole motor with diamond-like carbon coating on stator and/or rotor and method of making said downhole motor

US9340854B2 · kind B2 · utility

1Cited by

12References

10Claims

0Family size

Assignee

Baker Hughes Holdings LLC · US

Inventors

Dan E. Scott · Conroe, US
Chih Lin · Zhuolan Township, TW

Key dates

Filing date	Jul 13, 2011
Grant date	May 17, 2016
Priority date	—
Expiry date	Mar 12, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49229
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A drilling motor and method of making a drill motor are disclosed. The drilling motor includes a stator having a bore therethrough and inner surface and a rotor having an outer surface configured to be disposed in the stator. The outer surface of the rotor comes in contact with the inner surface of the stator. At least one of the inner surface of the stator and the outer surface of the rotor includes a coating of a diamond-like carbon material.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.