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:
Nov. 15, 1983
Filed:
Feb. 09, 1981
Arnold M Walkow, Houston, TX (US);
Eugene J Linyaev, Houston, TX (US);
Dresser Industries, Inc., Dallas, TX (US);
Abstract
Apparatus is provided for assisting a subsurface well logging instrument, perforating tool or wireline service tool in tubing or casing re-entry in deviated boreholes. The apparatus includes a body member, composed of two conjugated halves, rotatably mounted on the well logging cable immediately above the well logging instrument. A pair of wheels are rotatably mounted to the uphole facing portion of the apparatus. These wheel members provide a lifting action upon tubing or casing contact to thereby lift the logging cable off the casing and prevent the logging instrument from engaging in jammed contact with the exposed end of the tubing or casing.