Apparatus for pneumatically monitoring conditions of a well circ

Details Apparatus for pneumatically monitoring conditions of a well circ Apparatus for pneumatically monitoring conditions of a well circ

1975-06-06

1977-01-04

Myracle, Jerry W.

Measuring and testing

Borehole or drilling

Downhole test

137608, 13762418, E21B 4710

Patent

active

040006450

ABSTRACT:
Pneumatic apparatus for monitoring conditions of the drilling fluid circulating system of a well being drilled. A pneumatic signal having unequal duration times and representative of the rate of movement of the circulating pump is transmitted through a repeater valve and converted by a frequency divider into a pair of pneumatic signals having equal duration times. These signals actuate a series of metering systems which generate rate pressures representative of conditions of the circulating system. These rate pressures are displayed to the operator through independently calibrated and adjusted gauges.

REFERENCES:
patent: 3070295 (1962-12-01), Glattli
patent: 3602322 (1971-08-01), Gorsuch
patent: 3726136 (1973-04-01), McKean et al.

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