Device and method for transmitting information by electromagnetic waves
First Claim
1. A device for transmitting information between the bottom of a well (5) and the ground surface, said well comprising an array of pipes (4) separated in a lower part and an upper part by means (9) intended to seal the inner space of said pipes, seal assembly means (6) between said pipes and said well, wherein said lower part comprises a first unit (1) including information acquisition means and electromagnetic signal transmission and reception means, a second electromagnetic signal transmission and reception unit (2) is placed in the inner space of the upper part of the pipes by operating means (3) comprising at least one electric or optical communication line running up to the surface and said second unit comprises means (18, 15) of electric contact with said pipes.
2 Assignments
0 Petitions
Accused Products
Abstract
A device and method for transmitting information between a well bottom and the surface by means of electromagnetic waves. The device includes transmitting information on either side of a valve (9) placed in a string of pipes (4) in a well by means of two electromagnetic wave transmitter-receiver unit (1, 2) placed on either side of the valve. In the device, unit (2) placed above valve (9) is lowered by means of logging type cable (3) into inner space of pipes (4).
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Citations
20 Claims
- 1. A device for transmitting information between the bottom of a well (5) and the ground surface, said well comprising an array of pipes (4) separated in a lower part and an upper part by means (9) intended to seal the inner space of said pipes, seal assembly means (6) between said pipes and said well, wherein said lower part comprises a first unit (1) including information acquisition means and electromagnetic signal transmission and reception means, a second electromagnetic signal transmission and reception unit (2) is placed in the inner space of the upper part of the pipes by operating means (3) comprising at least one electric or optical communication line running up to the surface and said second unit comprises means (18, 15) of electric contact with said pipes.
- 12. A method for transmitting information between the bottom of a well (5) and the ground surface, said well comprising an array of pipes (4) separated in a lower part and an upper part by means (9) intended to seal the inner space of said pipes, seal assembly means (6) between said pipes and said well, information acquisition means, wherein said information is transmitted through an electromagnetic current from the lower part to the upper part by a first unit (1) placed below said seal means (9) and a second unit (2) placed in the inner space of the upper part, and said information is transmitted to the surface through an electric or optical communication line connecting said second unit to the ground surface.
Specification