US12366143 - Addressable switch assembly for wellbore systems and method
The patent describes a downhole system featuring a gun string with multiple gun assemblies and a detonator block that includes a switch assembly. This switch assembly is designed to receive fire commands from an external controller and to determine whether to activate the detonator based on measured voltage levels.
Claim 1
- A downhole system comprising: a gun string configured to be deployed into a wellbore, the gun string including plural gun assemblies; and a detonator block attached to a given gun assembly of the plural gun assemblies, wherein the detonator block includes a switch assembly, and wherein the switch assembly includes, a communication unit (CU) configured to receive, from an external controller, a fire command to activate a detonator associated with the detonator block, a measuring unit configured to measure a voltage (V) at the switch assembly, and a computing core (CC) is configured to close a switch resulting in the activation of the detonator, after the fire command is received from the external controller, based on whether the voltage measured by the measuring unit at the switch assembly is larger or not than a baseline voltage that is lower than the increased voltage. a gun string configured to be deployed into a wellbore, the gun string including plural gun assemblies; and a detonator block attached to a given gun assembly of the plural gun assemblies, wherein the detonator block includes a switch assembly, and wherein the switch assembly includes, a communication unit (CU) configured to receive, from an external controller, a fire command to activate a detonator associated with the detonator block, a measuring unit configured to measure a voltage (V) at the switch assembly, and a computing core (CC) is configured to close a switch resulting in the activation of the detonator, after the fire command is received from the external controller, based on whether the voltage measured by the measuring unit at the switch assembly is larger or not than a baseline voltage that is lower than the increased voltage. a communication unit (CU) configured to receive, from an external controller, a fire command to activate a detonator associated with the detonator block, a measuring unit configured to measure a voltage (V) at the switch assembly, and a computing core (CC) is configured to close a switch resulting in the activation of the detonator, after the fire command is received from the external controller, based on whether the voltage measured by the measuring unit at the switch assembly is larger or not than a baseline voltage that is lower than the increased voltage.
Google Patents
https://patents.google.com/patent/US12366143
USPTO PDF
https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12366143