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.

Date of Patent:
Jan. 29, 1985

Filed:

May. 11, 1983
Applicant:
Inventors:

James B Scott, Ponca City, OK (US);

Fred J Radd, Ponca City, OK (US);

Assignee:

Conoco Inc., Ponca City, OK (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166285 ; 166242 ;
Abstract

Well completion system providing for an enhanced bond between a well casing and the surrounding cement sheath. The system comprises a casing string disposed within a well extending to a subterranean location within the earth's crust. A metal ribbon is disposed about the outer surface of the casing to provide a wrapping having a series of helical turns along the length of the casing. A cement sheath in the annulus about the casing encompasses the wrapping and enters into openings therein to provide a bond between the cement and the outer surface of the casing. The metal ribbon may take the form of an expanded metal ribbon having a staggered mesh structure so that a portion of the ribbon stands off from the surface of the casing.


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