Method for installing instruments in wells

Details Method for installing instruments in wells Method for installing instruments in wells

1992-10-09

1993-11-30

Novosad, Stephen J.

Wells

Processes

Assembling well part

166 651, 166242, 166381, E21B 1714, E21B 3314, E21B 4700

Patent

active

052656802

ABSTRACT:
A method for installing an instrument at or near the bottom of a cased well. A cavity is formed within the body of a float shoe or float collar positioned at the bottom or near the bottom of a casing string as it is assembled for installation in a well. An instrument is positioned within the cavity and an appropriate electrical cable is run from the instrument along the outer side of the casing string to the earth surface. The float shoe or float collar provides mechanical protection for the instrument during the installation of the casing string in the wellbore and during the cementing operation and ensures good acoustic coupling of the geophones to the earth in the downhole applications.

REFERENCES:
patent: 3807499 (1974-04-01), Tausch et al.
patent: 4506729 (1985-03-01), Davis, Jr. et al.
patent: 4603578 (1986-08-01), Stolz
patent: 4616702 (1986-10-01), Hanson et al.
patent: 4664192 (1987-05-01), Hogarth
patent: 4676310 (1987-06-01), Scherbatskoy et al.

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