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:
Mar. 20, 2018
Filed:
Sep. 17, 2014
Christopher A. Branton, Bossier City, LA (US);
Christopher A. Branton, Bossier City, LA (US);
Other;
Abstract
A drill string coupling and uncoupling method includes forming a well bore by conducting a drilling operation using a drill string having a first drill string segment and a second drill string segment detachably coupled to the first drill string segment; immobilizing the second drill string segment in the well bore; uncoupling the first drill string segment from the second drill string segment; at least partially retracting the first drill string segment in the well bore away from the second drill string segment; reinserting the first drill string segment in the well bore to the second drill string segment; and re-coupling the first drill string segment to the second drill string segment.