Signal transmission through deflected well tubing

Details Signal transmission through deflected well tubing Signal transmission through deflected well tubing

1994-05-18

1995-05-09

Britts, Ramon S.

Wells

Processes

With indicating, testing, measuring or locating

166381, 367 35, 367 86, E21B 4700, G01V 326

Patent

active

054131740

ABSTRACT:
Fluid production or injection wells may be used to transmit or receive seismic signals by lowering a signal transmitting device within a tubing string disposed in the well and exerting a pressure fluid force on a free bottom end of the tubing string to cause the tubing string to helically deflect within the well and engage the wellbore wall firmly over a large portion of the tubing string to enhance the quality and intensity of the signal transmitted between the transmitting device and the earth formation penetrated by the well.

REFERENCES:
patent: 2137985 (1938-11-01), Salvatori
patent: 2449037 (1948-09-01), Harkness
patent: 2530308 (1950-11-01), Martin
patent: 3599085 (1971-08-01), Semmelisck
patent: 3876971 (1975-04-01), Wuenschel
patent: 4578785 (1986-03-01), Gelfand
patent: 4596143 (1986-06-01), Norel
patent: 4706225 (1987-11-01), Raoult
patent: 4766577 (1988-08-01), Clerke et al.
patent: 5180011 (1993-01-01), Wittrisch
patent: 5318129 (1994-06-01), Wittrisch

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