Patent · US Active

Estimation of multichannel mud characteristics

US9726010B2 · kind B2 · utility

1Cited by

13References

17Claims

0Family size

Assignee

Baker Hughes Holdings LLC · US

Inventors

Ingolf Wassermann · Houston, US
Hanno Reckmann · Wathlingen, DE
Michael Neubert · Lakeville, US

Key dates

Filing date	Jul 10, 2008
Grant date	Aug 8, 2017
Priority date	—
Expiry date	Oct 5, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG01V11/002
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The disclosure is directed to method and apparatus for communication through a fluid. The method includes measuring signals in the fluid at at least two spaced apart positions; estimating a subset of a separation matrix; and using the estimated subset and the signals to estimate a signal sent by the message source. The apparatus may include a message source on a bottom hole assembly; sensors disposed at least two spaced apart locations; and at least one processor configured to: estimate a subset of a separation matrix based on the signals and use the subset to estimate a message signal set by the message source.

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