Downhole cleaner assembly for petroleum wells

Details Downhole cleaner assembly for petroleum wells Downhole cleaner assembly for petroleum wells

1977-02-02

1978-08-01

Leppink, James A.

Boring or penetrating the earth

Processes

Boring with specific fluid

175107, 415502, E21B 312

Patent

active

041037499

ABSTRACT:
A centrifugal cleaner powered by a turbine are both downhole in a housing at the end of a drill string. A branch of a drilling mud stream is cleaned of solid matter by the centrifugal cleaner. A branch of the clean fluid drives the turbine of the centrifugal cleaner. A second branch of the clean fluid does useful work at the downhole location, such as erosive drilling of bore hole rock. Turbine exhaust, cleaner exhaust and drilling mud combine and flow into the rock erosion zone to clear it of chips formed by the drilling. Fluid from this zone passes up the annulus between the bore hole and the drill string.

REFERENCES:
patent: 2353534 (1944-07-01), Yost
patent: 2628819 (1953-02-01), Parsons
patent: 2735646 (1956-02-01), Wagner
patent: 2880970 (1959-04-01), Swart
patent: 2908534 (1959-10-01), Rielsch
patent: 3112800 (1963-12-01), Bobo
patent: 3400819 (1968-09-01), Burdyn
patent: 3433312 (1969-03-01), Burdyn et al.
patent: 3894818 (1975-07-01), Tschirky
patent: 3912426 (1975-10-01), Tschirky

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