Method of decoding MWD signals using annular pressure signals

Details Method of decoding MWD signals using annular pressure signals Method of decoding MWD signals using annular pressure signals

1991-05-17

1993-12-21

Moskowitz, Nelson

Communications, electrical: acoustic wave systems and devices

Wellbore telemetering

Through well fluids

367 83, 364422, G01V 140

Patent

active

052726800

ABSTRACT:
A method is presented for obtaining borehole measurements using measurement-while-drilling apparatus wherein mud pulse telemetry signals are decoded from the annulus pressure signals (as opposed to the standpipe pressure signals). The data bearing signals are enhanced by combining the annulus pressure signals and standpipe pressure signals using addition, multiplication or correlation techniques.

REFERENCES:
patent: 4575261 (1986-03-01), Berger et al.
patent: 4590593 (1986-05-01), Rodney
patent: 4703461 (1987-10-01), Kotlyar
patent: 4733232 (1988-03-01), Grosso
patent: 4733233 (1988-03-01), Grosso et al.
patent: 4866680 (1989-09-01), Scherbatskoy
patent: 4878206 (1989-10-01), Grosso et al.
Bryant et al., "Gas Influx Detection . . . MWD Technology"; IADC/SPE Drilling Conf., Mar. 2, 1990, Proc. pp. 515-529; Abst. only.
Grosso et al., "Report on MWD . . . Downhole Sensors"; J. Petrol. Technol., vol. 35, No. 5, pp. 899-904; May 1983; abst. only.

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