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.

Date of Patent:
Aug. 07, 2001

Filed:

Sep. 09, 1999
Applicant:
Inventor:

Douwe Johannes Runia, Rijswijk, NL;

Assignee:

Shell Oil Company, Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V 3/00 ; E21B 4/700 ; E21B 1/004 ;
U.S. Cl.
CPC ...
G01V 3/00 ; E21B 4/700 ; E21B 1/004 ;
Abstract

A system for drilling and logging of a wellbore formed in an earth formation is provided. The system comprises a logging tool string and a drill string having a longitudinal channel for circulation of drilling fluid, the drill string including a port providing fluid communication between the channel and the exterior of the drill string, the channel and the port being arranged to allow the logging tool string to pass through the channel and from the channel through the port to a position exterior of the drill string. The system further comprises a removable closure element adapted to selectively close the port, wherein the logging tool string may be selectively connected to the closure element.


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