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. 08, 2011
Filed:
Apr. 26, 2007
Jeremy R. Angelle, Lafayette, LA (US);
Robert L. Tribodeaux, Jr., Lafayette, LA (US);
Donald E. Mosing, Lafayette, LA (US);
Vernon J. Bouligny, Jr., New Iberia, LA (US);
Hans W. Schmidt, Lafayette, LA (US);
Richard Wiggins, Runaway Bay, TX (US);
Jeremy R. Angelle, Lafayette, LA (US);
Robert L. Tribodeaux, Jr., Lafayette, LA (US);
Donald E. Mosing, Lafayette, LA (US);
Vernon J. Bouligny, Jr., New Iberia, LA (US);
Hans W. Schmidt, Lafayette, LA (US);
Richard Wiggins, Runaway Bay, TX (US);
Frank's Casing Crew & Rental Tools, Inc., Lafayette, LA (US);
Abstract
Method and apparatus for handling a supported tubular string with a string elevator and a spider on a rig to prevent damaging contact between the string elevator and spider while facilitating further connections of add-on tubular segments. The string elevator and supported tubular string descend toward the spider until reaching a predetermined position. The process of setting the spider into engagement of the tubular string is automatically initiated in response to detecting the predetermined position of the string elevator. With the spider set, the string elevator can be unloaded. Optionally, the method may also automatically terminate the string elevator descent in response to detecting that the spider has been set. A preferred apparatus for detecting the position of the elevator includes a tilt switch secured to a fixed position along the length of the Kelly hose.