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:
Aug. 08, 1989
Filed:
Dec. 14, 1987
Brian K Simpson, Bristol, GB;
DRG (UK) Limited, , GB;
Abstract
A drill rig installation has, for handling the elongate tubular well elements, a handling boom provided with grabs to lift the tubulars from the strongbacks and present them at the drilling axis. For this purpose the boom has pivot mountings for movements about a vertical axis and a horizontal axis respectively, and the grabs are displaceable transversely of the boom. A support pad for the tubular elements is transversely displaceable on the boom jointly with the grabs. The installation further comprises a grid-form base providing a fixed platform on which a drilling derrick can be slid to different grid positions to drill a series of bore holes. The base grid also carries the store of tubular elements and trolleys that register the elements with the handling boom, and other ancillary equipment such as slips and torque wrench machines for assembling and dismantling drill strings.