System for measuring cuttings and mud carryover during the drill

Details System for measuring cuttings and mud carryover during the drill System for measuring cuttings and mud carryover during the drill

1982-03-12

1983-11-08

Birmiel, Howard A.

Measuring and testing

Borehole or drilling

Downhole test

175 48, 175 66, E21B 4908

Patent

active

044135114

ABSTRACT:
This invention discloses a method and system for continuously measuring the amount of solid cuttings picked up by a drilling mud being circulated in a well being drilled into subterranean formations and the amount of drilling mud carried over with the cuttings when the cuttings are separated from the drilling mud by a shale shaker. The cuttings and carryover mud discharged from the shale shaker are introduced into a vessel wherein the weight and volume of the solid cuttings and carryover mud are continuously measured and the volume fraction of solid cuttings .phi..sub.c is determined in accordance with the following equation: ##EQU1## wherein W is the weight of a fixed volume of solid cuttings and carryover mud discharged from the shale shaker, V is the volume of solid cuttings and carryover mud discharged from the shale shaker, P.sub.m is the density of the drilling mud, and P.sub.c is the density of the solid cuttings. The volume fraction of the carryover mud .phi..sub.m is determined in accordance with the following equation:

REFERENCES:
patent: 2966059 (1960-12-01), Dower
patent: 3726136 (1973-04-01), McKean et al.
patent: 3729986 (1973-05-01), Leonard
patent: 4043193 (1977-08-01), Bailey
patent: 4250974 (1981-02-01), Heilhecker et al.
patent: 4353803 (1982-10-01), Dover, Jr.

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