US 7,320,370 B2
Automatic downlink system
Stephane J. Virally, Sugar Land, Tex. (US); Christopher P. Reed, West University Place, Tex. (US); John A. Thomas, Porter, Tex. (US); Franck Al Shakarchi, Deir ez Zor (Syrian Arab Republic); Remi Hutin, New Ulm, Tex. (US); and Jean-Marc Follini, Houston, Tex. (US)
Assigned to Schlumberger Technology Corporation, Sugar Land, Tex. (US)
Filed on Sep. 17, 2003, as Appl. No. 10/605,248.
Prior Publication US 2005/0056465 A1, Mar. 17, 2005
Int. Cl. E21B 44/06 (2006.01)
U.S. Cl. 175—48  [367/83; 175/40] 24 Claims
OG exemplary drawing
 
1. A downlink system, comprising:
at least one mud pump for pumping drilling fluid from a drilling fluid storage tank to a drilling system;
a standpipe in fluid communication with the mud pump and in fluid communication with the drilling system;
a return line in fluid communication with the drilling system for returning the drilling fluid to the drilling fluid storage tank; and
a drilling fluid modulator in fluid communication with at least one of the group consisting of the standpipe and the return line.