Process and device for installing seismic sensors inside a petro

Details Process and device for installing seismic sensors inside a petro Process and device for installing seismic sensors inside a petro

1987-01-20

1988-10-04

Suchfield, George A.

Wells

Processes

With indicating, testing, measuring or locating

166 66, 166285, E21B 3314, E21B 4704

Patent

active

047750090

ABSTRACT:
A process for installing seismic sensors inside a petroleum production well equipped with a cemented casing involves arranging the seismic sensors along an outer surface of the casing before being descended into a drilled well and cementing a ring-shaped space between the casing and the well so as to acoustically connect the sensors to geological formations. The sensors and transmission cables which link them to the surface are secured to centering devices guiding the descent of the casing or to the casing outer wall, possibly by means of a coating of damping material. The sensors may be inserted into sleeves secured outside the casing.

REFERENCES:
patent: 2305229 (1942-12-01), Alexander
patent: 2309791 (1943-02-01), Sanders
patent: 3106960 (1963-10-01), Doak
patent: 3196946 (1965-07-01), Lauffer
patent: 3489219 (1970-01-01), Higgins
patent: 4191250 (1980-03-01), Messenger
patent: 4229122 (1980-10-01), Ballantyne
patent: 4480690 (1984-11-01), Vann
patent: 4662442 (1987-05-01), Debreville

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