Protection of electronic devices used with perforating guns
First Claim
Patent Images
1. A sensing subassembly for use with a downhole tool comprising:
- a housing;
a cavity, wherein the cavity is disposed within the housing;
at least one electronic component disposed within the cavity; and
at least one isolating member disposed within the cavity, wherein the at least one isolating member is configured to attenuate at least a portion of frequency components of a mechanical wave above a threshold and transmit at least a portion of frequency components below the threshold to the at least one electronic device.
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Abstract
A sensing subassembly for use with a downhole tool comprises a housing, a cavity disposed within the housing, at least one electronic component disposed within the cavity, and at least one isolating member disposed within the cavity. The at least one isolating member is configured to attenuate at least a portion of frequency components of a mechanical wave above a threshold and transmit at least a portion of frequency components below the threshold to the at least one electronic device.
239 Citations
20 Claims
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1. A sensing subassembly for use with a downhole tool comprising:
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a housing; a cavity, wherein the cavity is disposed within the housing; at least one electronic component disposed within the cavity; and at least one isolating member disposed within the cavity, wherein the at least one isolating member is configured to attenuate at least a portion of frequency components of a mechanical wave above a threshold and transmit at least a portion of frequency components below the threshold to the at least one electronic device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of measuring a shock event in a wellbore comprising:
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receiving, by a sensing subassembly, at least one mechanical wave within a wellbore, wherein the sensing subassembly comprises; a cavity disposed within a housing, at least electronic component disposed within the cavity, and at least one isolating member disposed with the at least one electronic device within the cavity; attenuating at least a portion of frequency components of the at least one mechanical wave above a threshold frequency; transmitting at least a portion of the frequency components of the at least one mechanical wave below the threshold to the electronic device; sensing at least one parameter associated with the at least one mechanical wave; generating, by the electronic component, at least one signal in response to the sensing; and storing the at least one signal in a non-transitory computer readable media. - View Dependent Claims (14)
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15. A method of absorbing a mechanical wave using a shock protection apparatus comprising:
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receiving a mechanical wave at a housing, wherein the housing is disposed in a wellbore, wherein the housing contains at least one cavity with at least one sensor disposed within the at least one cavity, wherein the at least one sensor is coupled to the housing by an isolation member; attenuating at least a portion of the mechanical wave using the isolation member; transmitting at least a portion of the mechanical wave to the at least one sensor using the isolation member; and sensing at least one parameter of the mechanical wave transmitted to the at least one sensor. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification