Replaceable antennas for wellbore apparatus
AssigneeSchlumberger Technology Corporation
InventorBrian Clark
Life of this patent
Estimating the term…
Abstract
An antenna structure is separately and independently formed with respect to a downhole tool. The antenna is adapted for easy and rapid deployment on the tool. An independently formed ‘partial ring section’ (or arcuate shaped member) contains an antenna coil. In one embodiment, two or more of the independently formed partial ring sections are placed in a recess on the tubular forming the downhole tool. In another embodiment, the partial ring sections can also be placed in one or more longitudinally distributed sections about the tool. Another embodiment includes partial ring sections forming an antenna with multiple coils of differing orientation to provide directional sensitivity.
Claims29
An arcuate shaped member adapted to function as an antenna, comprising:
- a curved shaped section, the curved shape of said section adapted to be placed in juxtaposition with another curved shaped section;
- and
- a coil disposed in said curved shaped section of said arcuate shaped member, said coil having a primary path and a return path.
An apparatus adapted for disposal within a wellbore, comprising:
- a tubular having an elongated section with a recess formed therein;
- at least one arcuate shaped member adapted for disposal within said recess on said tubular, said arcuate shaped member being independently formed with respect to said tubular;
- and
- said arcuate shaped member having a coil disposed therein.
A method of deploying an antenna on a wellbore tool, said tool including a recess formed therein, comprising:
- a) disposing at least two arcuate shaped members within and in juxtaposition with said recess, said arcuate shaped members each being independently formed with respect to said tool, said arcuate shaped members each including a coil disposed therein;
- and
- b) coupling an electrical source to said coils.
Dependencies are inferred from the claim text.