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US 8,783,346 B2Granted
System and method for improving operational characteristics
AssigneeSchlumberger Technology Corporation
InventorsReza Taherian, Henry N. Bachman
Life of this patent
Estimating the term…
Abstract
In one embodiment, an apparatus includes an antenna having a conductive winding, with the antenna disposed about a channel. A characteristic improvement material is disposed between the antenna and the channel. In some embodiments, the characteristic improvement material includes at least one of a negative stiffness material or a negative Poisson's ratio material. Various systems and methods are also disclosed herein.
Claims18
An apparatus comprising:
- a conductive material having a channel formed therethrough;
- a first layer of composite material disposed about the conductive material and comprising a characteristic improvement material comprising at least one of a negative stiffness material or a negative Poisson's ratio material;
- an antenna separate from the first layer of composite material and disposed about the first layer of composite material, the antenna comprising at least one conductive winding
- a second layer of composite material disposed around the antenna, the second layer of composite material being separate from the antenna and the first layer of composite material;
- and
- non-conductive layer of material disposed around the second layer of composite material.
3 more elements
A method for manufacturing a downhole apparatus comprising:
- providing a conductive cylindrical structure having an opening formed therethrough defining a channel;
- disposing a first layer of composite material about the conductive cylindrical structure, wherein the first layer of composite material comprises a characteristic improvement material comprising at least one of a negative stiffness material or a negative Poisson's ratio material;
- disposing an antenna about the first layer of composite material, wherein the antenna comprises at least one conductive coil winding and is separate from the first layer of composite material;
- disposing a second layer of composite material about the antenna, wherein the second layer of composite material is separate from the antenna and the first layer of composite material;
- and
- disposing a non-conductive layer of material about the second layer of composite material.
3 more elements
Dependencies are inferred from the claim text.