Extended range emf antenna
AssigneePrecision Drilling Technology Services Group Inc.
InventorPaul Radzinski
Life of this patent
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Abstract
A measuring while drilling system typically has a metal pipework extending underground connected to an antenna. The metal pipework and the antenna are both connected to a type of downhole equipment. The antenna transmits or receives signals to/from a transceiver located on the surface, and the transceiver is connected to the metal pipeword and to a ground. The system is improved by joining a plurality of sections of wired drill pipe together to form a section where the antenna is integral with the metal pipework. One end of the section of wired drill pipe is joined to downhole equipment and another end is joined to a conventional metal pipework.
Claims17
A measuring while drilling apparatus having a metal pipework extending underground and connected to an antenna, wherein both the metal pipework and the antenna are connected to a type of downhole equipment, whereby the antenna transmits/receives signals with a transceiver located on a surface, wherein the transceiver is connected to the metal pipework and to a ground, comprising:
- a plurality of sections of wired drill pipe joined together to form the antenna and a section where the antenna is integral with the metal pipework
A new use for a section of wired drill pipe, comprising:
- installing one end of the section of wired drill pipe on a type of downhole equipment;
- installing a conventional metal pipework to the other end of the section of wired drill pipe;
- and
- using the section of wired drill pipe as an antenna for a well operation located below a surface from which the metal pipework emanates.
In an apparatus for telemetering information between a type of downhole equipment at a bottom of an operation and a surface, the apparatus having the combination of a metal pipework;
- a transceiver at the surface connected to both a ground, spaced from the operation, and the metal pipework;
- and an antenna for applying signals between two points, wherein the antenna has the improvement comprising:
- a plurality of sections of wired drill pipe joined together to form the antenna, wherein one end of said plurality of sections of wired drill pipe is connected to the metal pipework and another end is connected to the downhole equipment.
In a method for telemetering information between a type of downhole equipment at a bottom of an operation and a surface, the method having the combination of providing an antenna proximate the downhole equipment at the bottom of the operation and a transceiver at the surface connected to both a ground, spaced from the operation, and to a metal pipework of the operation;
- and applying signals with the antenna between two points along the metal pipework, wherein the step of providing the antenna has the improvement comprising:
- joining a plurality of sections of wired drill pipe together to form the antenna;
- and
- connecting the plurality of sections of wired drill pipe between the metal pipework of the operation and the downhole equipment.
Dependencies are inferred from the claim text.