Method and apparatus for indicating sample collection times duri

Details Method and apparatus for indicating sample collection times duri Method and apparatus for indicating sample collection times duri

1988-08-01

1989-08-29

Novosad, Stephen J.

Boring or penetrating the earth

With signaling, indicating, testing or measuring

Providing identifiable indication of core position in situ...

175 48, 175 50, 73153, E21B 4400

Patent

active

048608360

ABSTRACT:
A system for eliminating the need for one or more mud loggers on a drilling rig keeps track of the travel of drilling mud injected into the bottom of the well as it moves to the surface of the well with entrapped drill cuttings and gas so that for mud reaching the surface of the well, the system knows at what depth in the well the mud was injected. The system indicates to drill rig personnel when mud from preselected well depths reach the surface of the well and when to collect samples of drill cuttings strained from the mud in order to have the required samples representative of the preselected well depths. The system monitors the performance of well personnel in collecting samples by monitoring the time it takes to collect a sample after the indication that the sample should be collected. The system can also print labels to be attached to the collected samples to properly identify them and can also measure various properties of the mud reaching the surface and correlate such properties with the depth of the well from which the mud came.

REFERENCES:
patent: 3982432 (1976-09-01), Hammond
patent: 4393485 (1983-07-01), Redden
patent: 4565086 (1986-01-01), Orr, Jr.
patent: 4635735 (1987-01-01), Crownover
patent: 4708212 (1987-11-01), McAuley et al.
patent: 4739655 (1988-04-01), Greer et al.
Anadrill Schlumberger, The Advisor System brochure, 9/86.
Data sheets on Exploration Logging, Inc.'s EXLOG system, 1988.

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