Apparatus for controlling a well during drilling operations

Details Apparatus for controlling a well during drilling operations Apparatus for controlling a well during drilling operations

1977-09-14

1978-08-22

Novosad, Stephen J.

Boring or penetrating the earth

With expansible bore wall anchor

166122, 166129, 166154, 166183, 166188, 175325, E21B 2304, E21B 33127, E21B 33129

Patent

active

041082575

ABSTRACT:
A method and apparatus for use in controlling a well during drilling operations is disclosed. The method includes actuating a downhole packer and providing for flow in a controlled manner past the packer. The apparatus includes a packer and means for controlling flow past the packer. This abstract is neither intended to define the scope of the invention which, of course, is defined in the claims, nor is it intended to be limiting in anyway.

REFERENCES:
patent: 2978046 (1961-04-01), True
patent: 3134439 (1964-05-01), Shields, Jr.
patent: 3190359 (1965-06-01), Brown
patent: 3299955 (1967-01-01), Page, Jr.
patent: 3373820 (1968-03-01), Robinson, Jr. et al.
patent: 3503445 (1970-03-01), Cochrum et al.
patent: 3527296 (1970-09-01), Malone
patent: 3606924 (1971-09-01), Malone
patent: 3710862 (1973-01-01), Young et al.

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