Patent · US Expired

Protective barriers for small devices

US7673679B2 · kind B2 · utility

138Cited by
15References
16Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 19, 2005
Grant dateMar 9, 2010
Priority date
Expiry dateOct 27, 2025

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE21B49/10
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

Protective barriers for small devices, such as sensors, actuators, flow control devices, among others, protect the devices from erosive and/or corrosive fluids, for example, formation fluids under harsh downhole conditions. The protective barriers include protective coatings and fluid diverting structures in the fluid flow which facilitate use of the small devices in high temperature-high pressure applications with erosive and/or corrosive fluids that are often found in downhole environments.

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