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. 16, 1982
Filed:
Aug. 04, 1980
Applicant:
Inventors:
Eugene E Baker, Duncan, OK (US);
Ernest E Carter, Jr, Duncan, OK (US);
Assignee:
Halliburton Services, Duncan, OK (US);
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
166355 ; 166129 ; 166186 ;
Abstract
An apparatus is provided for cementing an oil well borehole from a floating vessel. A sliding sleeve cementing valve is adapted to be interconnected with a casing string. A drill string to be lowered into the casing string includes a drill pipe, an opening positioner connected to the drill pipe for opening the cementing valve, an anchor connected to the opening positioner to provide sufficient resistance between the drill string and casing string to operate a motion compensator on the floating vessel, and an isolation packer connected to the anchor.