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.:
Date of Patent:
May. 08, 2001
Filed:
Feb. 24, 1999
Applicant:
Inventors:
Mark Carmichael, Aboyne, GB;
Paul Howlett, Cults, GB;
Assignee:
Specialised Petroleum Services Limited, Aberdeenshire, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 3/702 ;
U.S. Cl.
CPC ...
E21B 3/702 ;
Abstract
A well cleaning tool for cleaning the inside walls of a well casing has at least two types of cleaning members; for example it may have a row of scraper blades and a row of brushes. The tool may also include one or more rotatable stabilizers that serve to maintain contact of the tool with the internal casing walls. The tool provides for obtaining the benefits of different types of cleaning members from a single trip into a well bore.