Automatic recovery system for plugs and excavation materials

Details Automatic recovery system for plugs and excavation materials Automatic recovery system for plugs and excavation materials

1976-09-20

1978-07-04

Spear, Jr., Frank A.

Liquid purification or separation

Diverse distinct separators

Including a filter

175 60, 175206, 210316, 210448, 210449, 210460, B01D 2306

Patent

active

040986985

ABSTRACT:
The present invention relates to a system for automatically recovering the entirety of the excavated materials in the order in which they are raised to the surface.
The excavated materials being delivered through the central passage of a double pipe system pass into a strainer pipe 6 discharging into a perforated recovery sheath 5 which is closed at its base. A decompression sleeve 3 encloses the strainer pipe. Air and water are evacuated through the strainer slots 6 and all the excavated materials are deposited at 5 in the order in which they are brought up.
The invention is applicable to any reverse circulation drilling system.

REFERENCES:
patent: 1645364 (1927-10-01), Weaver
patent: 3291229 (1963-11-01), Houston

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