Method for isolation of intake beds in drill holes and a device

Details Method for isolation of intake beds in drill holes and a device Method for isolation of intake beds in drill holes and a device

1987-05-05

1989-06-27

Suchfield, George A.

Wells

Processes

Separating material entering well

166286, 166222, 166242, 175 72, 175424, E21B 700, E21B 33138, E21B 4338

Patent

active

048420662

ABSTRACT:
There is claimed a method for isolating intake beds in drill holes (wells), wherein a cement slurry is pumped into a drill pipe string from a well mouth and flash setting and thickening of the cement slurry is ensured once it has left the drill pipe string and a separated phase of lower density is directed to the well mouth via an annular space of the well above a lost circulation zone. A device for carrying same into effect is also claimed.

REFERENCES:
patent: 1674815 (1928-06-01), Barnhart
patent: 1994850 (1935-03-01), Burt
patent: 1998833 (1935-04-01), Crowell
patent: 2072982 (1937-03-01), Dale
patent: 2117537 (1938-05-01), Baker
patent: 2257765 (1941-10-01), Scaramucci
patent: 2642268 (1953-06-01), Armentrout
patent: 2776111 (1957-01-01), Vance
patent: 2890169 (1959-06-01), Prokop
patent: 3072195 (1963-01-01), Kluck
patent: 3409093 (1968-11-01), Cunningham et al.

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