Method for locating the depth of a drill string washout or lost

Details Method for locating the depth of a drill string washout or lost Method for locating the depth of a drill string washout or lost

1980-11-14

1982-08-31

Myracle, Jerry W.

Measuring and testing

Borehole or drilling

Downhole test

E21B 4710

Patent

active

043465943

ABSTRACT:
For use in an oil well drilling system, methods are disclosed to determine the depth of drill string washouts and the depth of leach zones that cause lost circulation. The methods are based primarily on the circulating pressure of the drilling fluid at the surface within the standpipe.

REFERENCES:
patent: 2290408 (1942-07-01), Crites
patent: 2528956 (1950-11-01), Hayward
patent: 4297880 (1981-11-01), Berger

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