Method and apparatus for servicing well casing and the like

Details Method and apparatus for servicing well casing and the like Method and apparatus for servicing well casing and the like

1989-01-12

1990-02-13

Novosad, Stephen J.

Wells

Processes

Cleaning or unloading well

166222, 166373, E21B 3700, E21B 3708

Patent

active

048998214

ABSTRACT:
A method and apparatus for servicing well casing and the like using a treating fluid, the apparatus having a first tool; a second tool having a pair of openings; conduit interconnecting the first and second tools in series relation so that a first of the pair of openings communicate through the conduit with the first tool and the second of the pair of openings communicates with the second tool; a source of treating fluid communicating with the second of the pair of openings; and a valve assembly borne by the second tool and engageable with the interior of the well casing and operable by such contact selectively to control the flow of treating fluid through the openings to the first and second tools.

REFERENCES:
patent: Re31495 (1984-01-01), Zublin
patent: 3797572 (1974-03-01), Mignotte
patent: 3912173 (1975-10-01), Robichaux
patent: 4046199 (1977-09-01), Tafoya
patent: 4088191 (1978-05-01), Hutchison
patent: 4431058 (1984-02-01), Spencer et al.
patent: 4671355 (1987-06-01), Strange
patent: 4673728 (1988-08-01), Lacey
patent: 4815538 (1989-03-01), Burroughs

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