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.
168 Citations
36 Claims
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1. A system for downhole power generation, comprising:
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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, 6, 7, 8)
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9. 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 said bottom hole assembly. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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18. 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. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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25. 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. - View Dependent Claims (26, 27, 28, 29, 30)
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31. 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 (32, 33, 34, 35, 36)
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Specification