Method for injecting fluid into a wellbore

Details Method for injecting fluid into a wellbore Method for injecting fluid into a wellbore

1995-01-13

1996-08-13

Novosad, Stephen J.

Wells

Processes

With indicating, testing, measuring or locating

166291, 166310, 166155, 166169, E21B 3316

Patent

active

055447058

ABSTRACT:
A method for injecting fluid, such as an accelerator, into a wellbore comprises storing the fluid in a reservoir, locating the reservoir downhole in the wellbore, and then transferring the fluid from the reservoir into the wellbore. More particularly, one embodiment of the method comprises storing the fluid in a reservoir in a plug, pumping the plug down casing in a wellbore, and transferring the fluid at the bottom of the wellbore via a venturi effect. Another embodiment of the method comprises storing the fluid in a reservoir integrated into the wall of a portion of casing, setting the casing in the wellbore, and then transferring the fluid via a venturi effect from the reservoir into the annulus defined between the casing and the wellbore.

REFERENCES:
patent: 2968351 (1961-01-01), Jones
patent: 3104715 (1963-09-01), Robinson, Jr., et al.
patent: 3212576 (1965-10-01), Lanmon II
patent: 4191254 (1980-03-01), Bughman
patent: 4361187 (1982-11-01), Luers
patent: 4846279 (1989-07-01), Bruce
patent: 4953620 (1990-09-01), Bloys et al.
patent: 4976316 (1990-12-01), Carpenter et al.
patent: 5005646 (1991-04-01), Bloys et al.

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