Down-hole tool filter and method for protecting such tools...

Details Down-hole tool filter and method for protecting such tools... Down-hole tool filter and method for protecting such tools...

2007-03-13

2007-03-13

Neuder, William (Department: 3672)

Boring or penetrating the earth

With receptacle

Sieve or strainer

C175S314000

Reexamination Certificate

active

10982652

ABSTRACT:
An improved apparatus for filtering down-hole drilling fluids, insertable at any point in the drill string, i.e.: tool joints or within instrument subs. The filter element is a disk insertable between the two threadably connected ends of any two lengths of the drill string or adaptively placed within a tool joint containing down-hole tools such as data gathering instruments. The filter is essentially a disk having a series of expanding concentric radial slots and may be used in combination with an X collar support ring insert, combined with a sleeve having a landing ring or provided with a retrieval means.

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