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:
Apr. 24, 2012
Filed:
Jun. 02, 2006
Ruben Martinez, Houston, TX (US);
Attilio Pisoni, Dubai, AE;
Jan W. Smits, Sugar Land, TX (US);
Reza Taherian, Sugar Land, TX (US);
Simon Bittleston, Drayton, GB;
Ruben Martinez, Houston, TX (US);
Attilio Pisoni, Dubai, AE;
Jan W. Smits, Sugar Land, TX (US);
Reza Taherian, Sugar Land, TX (US);
Simon Bittleston, Drayton, GB;
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
A system and method for downhole measurement for use with drill strings to reduce the borehole gap with respect to sensors carried by the drill string. In one embodiment, the sensors are mounted on a surface of the directional drilling hinged pad that comes in contact with the borehole wall. The hinged pad is pressed against the borehole wall as contact is made with the wall, thereby keeping the sensors at a minimum gap with respect to the wall. In another embodiment, the hinged pad is not used for directional drilling. Therefore the hinged pad is extended outward to the wall with the minimum necessary amount of force. Activation of the hinged pad can be initiated, for example, by flow of mud in the annulus of the string or through a user-provided command. The sensors can include resistivity, density, neutron, electromagnetic, acoustic, seismic, and NMR measurement sensors.