The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 6571867 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 03, 2003

Filed:

Jun. 14, 2001
Applicant:
Inventor:

Lesley O. Bond, Neosho, MO (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 7/08 ; E21B 4/300 ;
U.S. Cl.
CPC ...
E21B 7/08 ; E21B 4/300 ;
Abstract

A method and apparatus for forcing drainage devices through the sidewall of a borehole and into the formation to increase oil and gas recovery from the formation. The object usually comprises a plurality of drainage devices, which may be a plurality of nesting discs perforated to provide a passageway for recovery fluid. The discs and drainage device are forced non-drillingly through the side wall and into the formation. The apparatus and method also may be used with interconnected links instead of discs to push a core sampler into the formation and retrieve it. The housing includes a guide channel that is usually an angled passageway or tube. The discs or links are sized to be received in the guide. The apparatus includes a propulsion assembly that impacts the discs or links that act as an anvil assembly. Alternatively, the apparatus takes the form of a pre-loaded casing section, that is, a casing section in which a plurality of drainage devices have been incorporated. A bit pushed through the casing forces the drainage devices out into the formation.


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