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. 30, 1995
Filed:
Jun. 16, 1993
J Scott Reynolds, Aberdeen, GB;
Robert L Sloan, Katy, TX (US);
Well-Flow Technologies, Inc., Houston, TX (US);
Abstract
A tool for cleaning oil, gas, and water well wall casing is disclosed. The cleaning tool includes a cylindrical member and a helical swath of scratching elements affixed to the side walls of the cylindrical member positioned for scouring the interior wall of the casing. Also included in the side walls of the cylindrical member is a helical channel adjacent to the swath of scratching elements. Typically, a workstring maneuvers the tool through the casing under mechanical force. Fluid is circulated through the channel of the tool to carry to the surface the loosened debris scoured from the interior wall of the casing. A method of cleaning a well casing is also disclosed. The method includes the use of a tool with scratching elements and flow channels, which tool can be used either with or without cleaning solvents.