Actuating downhole devices in a wellbore
First Claim
1. A method, comprising:
- receiving, at a downhole tool, power for tool actuation and an actuation signal comprising a plurality of tones and a plurality of reference frequencies at corresponding reference tone durations associated with the downhole tool;
comparing frequencies and durations of the plurality of tones in the actuation signal to the plurality of reference frequencies and corresponding reference tone durations; and
actuating the downhole tool in response to the comparison of the frequencies and durations of the plurality of tones in the actuation signal to the plurality of reference frequencies and corresponding reference tone durations if one or more frequencies and durations of the plurality of tones in the actuation signal substantially matches one or more of the reference frequencies and corresponding tone durations.
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Accused Products
Abstract
A downhole tool system includes a first downhole tool and a second downhole tool. The first downhole tool includes a first controller operable to receive an actuation signal including a tone. The first controller actuates the first downhole tool if the tone is a first specified frequency and changes the first downhole tool to communicate the actuation signal to the second downhole tool if first downhole tool is not actuated in response to the actuation signal. A second downhole tool includes a second controller operable to receive the actuation signal. The second controller actuates the second downhole tool if the tone is a second specified frequency. The second frequency is different from the first frequency.
61 Citations
33 Claims
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1. A method, comprising:
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receiving, at a downhole tool, power for tool actuation and an actuation signal comprising a plurality of tones and a plurality of reference frequencies at corresponding reference tone durations associated with the downhole tool; comparing frequencies and durations of the plurality of tones in the actuation signal to the plurality of reference frequencies and corresponding reference tone durations; and actuating the downhole tool in response to the comparison of the frequencies and durations of the plurality of tones in the actuation signal to the plurality of reference frequencies and corresponding reference tone durations if one or more frequencies and durations of the plurality of tones in the actuation signal substantially matches one or more of the reference frequencies and corresponding tone durations. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method, comprising:
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receiving, at a downhole tool, power for tool actuation and an actuation signal comprising a tone; comparing the actuation signal to a reference frequency associated with the downhole tool; and actuating the downhole tool in response to the comparison of the actuation signal and the reference frequency if a tone of the actuation signal substantially matches the reference frequency, wherein actuating the downhole tool further comprises actuating the downhole tool in response to the comparison of the actuation signal and the reference frequency and a comparison of a duration of the tone and a specified duration associated with the downhole tool. - View Dependent Claims (8, 9, 10, 11)
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12. A downhole tool system, comprising:
a downhole device comprising; a downhole tool; and a controller operable to receive an actuation signal comprising a tone, the controller actuates the downhole tool if the tone is a specified frequency associated with the downhole device, wherein the actuation signal comprises a plurality of tones and wherein the controller actuates the downhole tool if the tones comprise a specified plurality of frequencies associated with the downhole device, and the specified frequency is different from any other frequency associated with any other downhole device of the downhole tool system. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A downhole tool system, comprising:
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a downhole device comprising; a downhole tool; and a controller operable to receive an actuation signal comprising a plurality of tones, the controller operable to actuate the downhole tool if the tones comprise a specified plurality of frequencies associated with the downhole device; and a mono-conductor wireline communicating the actuation signal and power to actuate the downhole tool to the downhole device. - View Dependent Claims (21, 22, 23, 24, 25, 26)
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27. A downhole tool system, comprising:
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a first downhole device comprising; a first downhole tool; and a first controller operable to receive an actuation signal comprising a plurality of tones, the first controller operable to actuate the first downhole tool if the tones comprise a first specified plurality of frequencies associated with the first downhole device; and a second downhole device comprising; a second downhole tool; and a second controller operable to receive the actuation signal comprising the plurality of tones, the second controller operable to actuate the second downhole tool if the tones comprise a second specified plurality of frequencies associated with the second downhole device. - View Dependent Claims (28, 29, 30, 31, 32, 33)
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Specification