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:
Oct. 16, 2007

Filed:

Jun. 18, 2004
Applicants:

Hiroshi Nakajima, Sagamihara, JP;

Atsushi Enomoto, Tokyo, JP;

Inventors:

Hiroshi Nakajima, Sagamihara, JP;

Atsushi Enomoto, Tokyo, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 23/00 (2006.01); E21B 23/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

A borehole tool positioning and measuring apparatus and its methods of use are provided. The apparatus and method can be used to centralize a logging tool in a wellbore, or position a logging tool at a desired relative alignment relative to the wellbore perimeter surface. The method and apparatuses can be used to determine useful information regarding borehole size and configuration. Various embodiments are useful for centralizing, eccentralizing, and otherwise positioning a borehole tool in a wellbore. Methods of determining borehole size and configuration measurements using a positioning apparatus are also provided.


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