US 9,810,059 B2
Wireless power transmission to downhole well equipment
Talha Jamal Ahmad, Dhahran (SA)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Jun. 10, 2015, as Appl. No. 14/735,227.
Claims priority of provisional application 62/018,749, filed on Jun. 30, 2014.
Prior Publication US 2015/0377016 A1, Dec. 31, 2015
Int. Cl. G01V 3/00 (2006.01); E21B 47/16 (2006.01); E21B 41/00 (2006.01)
CPC E21B 47/16 (2013.01) [E21B 41/0085 (2013.01)] 28 Claims
OG exemplary drawing
 
1. An apparatus for wireless transmission of power from a wellhead through walls of well tubing in a wellbore to downhole electrical equipment mounted with the well tubing, comprising:
(a) a transducer module mounted with the well tubing at the surface and converting electrical power to guided wave energy for transfer of the guided wave energy to the well tubing for downhole travel through the walls of the well tubing;
(b) a motion sensing module mounted with the well tubing in the wellbore at a depth in the wellbore of the electrical equipment and sensing the guided wave energy in the walls of the well tubing;
(c) a power converter mounted with the well tubing in the wellbore at the depth in the wellbore of the electrical equipment converting the sensed guided wave energy to electrical energy; and
(d) an electrical power storage unit mounted with the well tubing at the depth in the wellbore of the electrical equipment to store electrical energy converted from the sensed guided wave energy.