Internal power source for downhole detection system
First Claim
Patent Images
1. A system for downhole power generation, comprising:
- a bottom hole assembly;
a downhole power source which collects vibrational energy from said bottom hole assembly and converts said vibrational energy into electrical energy.
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Abstract
A drill string is equipped with a downhole assembly having an instrumented sub and a drill bit. The instrumented sub has a power source that requires no electrical chemical batter. A mass-spring system is used, which during drilling causes a magnet to oscillate past a coil. This induces current which is used to power downhole instruments.
12 Citations
22 Claims
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1. A system for downhole power generation, comprising:
- a bottom hole assembly;
a downhole power source which collects vibrational energy from said bottom hole assembly and converts said vibrational energy into electrical energy. - View Dependent Claims (2, 3, 4, 5)
- a bottom hole assembly;
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6. A system for downhole power generation, comprising:
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a downhole assembly, said assembly having sensors which collect data during drilling;
wherein said sensors are electrically connected to a downhole power source; and
wherein said source powers said sensors using vibrations from said bottom hole assembly. - View Dependent Claims (7, 8, 9, 10, 11, 13, 14, 15, 17, 18, 19)
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12. A system for downhole power generation, comprising:
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a drill string connecting a drill bit to the surface;
a sub assembly on the lower end of said string above said drill bit;
a detection platform on said sub assembly which receives data from one or more sensors;
wherein said sub assembly has an independent refreshable internal power source.
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16. A system for downhole power generation, comprising:
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a bottom hole assembly having a drill bit and a sub assembly;
sensors connected to monitor said bottom hole assembly;
an elastically positioned mass, having magnetic properties which generate a current in a nearby coil as said mass oscillates;
wherein said current provides electricity to said sensors.
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20. A method of generating power in a downhole assembly, comprising the steps of:
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collecting vibrational energy from drilling operation; and
converting said vibrational energy into electrical current using a magnet and coil. - View Dependent Claims (21, 22)
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Specification