1
Robert Albertus Van Dijk: Drilling system with expandable sleeve. Shell Oil Company, January 9, 2007: US07159673 (3 worldwide citation)

A drilling system and method for drilling a borehole into an earth formation is provided. The drilling system has a drill string having a lower section provided with a sleeve which is radially expandable from a retracted mode in which the sleeve extends around the lower drill string section and is r ...


2
Van Dijk Robert Albertus: Dispositif de perforation a manchon extensible, Drilling system with expandable sleeve. Shell Canada, Shell Canada, Smart & Biggar, September 7, 2010: CA2444776

A drilling system and method for drilling a borehole into an earth formation is provided. The drilling system comprises a drill string (1) having a lower section provided with a sleeve (7) which is radially expandable from a retracted mode in which the sleeve extends around said lower drill string s ...


3
Van Dijk Robert Albertus: Drilling system with expandable sleeve. Shell Int Research, January 21, 2004: EP1381750-A1

A drilling system and method for drilling a borehole into an earth formation is provided. The drilling system comprises a drill string (1) having a lower section provided with a sleeve (7) which is radially expandable from a retracted mode in which the sleeve extends around said lower drill string s ...


4
Robert Albertus Van Dijk: Drilling system with expandable sleeve. Richard L Lemuth, Shell Oil Company, July 29, 2004: US20040144568-A1

A drilling system and method for drilling a borehole into an earth formation is provided. The drilling system comprises a drill string (1) having a lower section provided with a sleeve (7) which is radially expandable from a retracted mode in which the sleeve extends around said lower drill string s ...


5
Van, Dijk Robert Albertus: Drilling system with expandable sleeve. Shell Internationale Research Maatschappij, Shell Canada, Van, Dijk Robert Albertus, November 7, 2002: WO/2002/088510

A drilling system and method for drilling a borehole into an earth formation is provided. The drilling system comprises a drill string (1) having a lower section provided with a sleeve (7) which is radially expandable from a retracted mode in which the sleeve extends around said lower drill string s ...