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. 21, 1978
Filed:
Dec. 23, 1976
Early B Denison, Houston, TX (US);
Shell Oil Company, Houston, TX (US);
Abstract
A method and apparatus for telemetering information from the bottom of a borehole to the surface while drilling wherein a wireline is used to transmit the information from the bottom of the borehole to an intermediate position in the drill string, and a special drilling string, having an insulated electrical conductor, is used to transmit the information from the intermediate position to the surface. In an alternate arrangement, an electro-magnetic method may be used to transmit information from the intermediate position to the surface. There is also disclosed special equipment that permits removal of the jumper wire from the surface without removing the drill string from the borehold.