Patent · US Active

Two sensor impedance estimation for uplink telemetry signals

US7423550B2 · kind B2 · utility

6Cited by
16References
25Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 19, 2005
Grant dateSep 9, 2008
Priority date—
Expiry dateJan 22, 2027

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE21B47/18
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

Measurements made with dual sensors (flow rate or pressure) are used to attenuate pump noise in a mud pulse telemetry system.

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