Wellbore treatment

Details Wellbore treatment Wellbore treatment

1981-12-14

1984-03-27

Howell, Janice A.

Radiant energy

Geological testing or irradiation

Well testing apparatus and methods

G01V 500

Patent

active

044396783

ABSTRACT:
A method for determining the success of a multiple perforation operation by determining whether all perforations are open comprising providing a fluid loss control composition which carries one or more materials designed to form a filter cake on the wellbore wall, at least one of the filter cake forming materials being radioactively tagged, injecting the fluid loss control composition into the wellbore and into the perforations to build up a filter cake on the wellbore wall behind the perforations and running a nuclear log survey in the wellbore to determine which of the perforations were sufficiently open to the wellbore wall to establish a filter cake buildup thereon.

REFERENCES:
patent: 3251993 (1966-05-01), Bader et al.
patent: 3503447 (1970-03-01), Hamby, Jr.

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