# US 12,000,241 B2 · Electronic rupture disc with atmospheric chamber > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,000,241 B2 - Document ID: US12000241B2 - Status: Granted - Kind: B2 - Application number: 17/904,029 - Filed: 2021-02-18 - Published: 2023-03-23 - Granted: 2024-06-04 - Earliest claimed: 2021-02-18 - Assignees: Schlumberger Technology Corporation - Applicants: Schlumberger Technology Corporation - Inventors: Michael Underbrink; Yann Dufour; Kaiyang Kevin Liew; Joao Mendonca; Oguzhan Guven; Laurent Alteirac - Web page: https://patentgrep.com/patent/US12000241B2 ## CPC - E21B 34/063: {Valve or closure with destructible element, e.g. frangible disc (E21B34/103 takes precedence)} - E21B 33/12: Packers; Plugs (used for cementing E21B33/134, E21B33/16) - E21B 34/06: in wells - E21B 34/066: {electrically actuated} - E21B 47/18: through the well fluid {, e.g. mud pressure pulse telemetry} - E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS ## Abstract An electronic trigger system includes a longitudinal housing including detection, electronics, and actuation sections disposed therein. The detection section includes a pressure sensor for receiving a predetermined pressure signal, and an electronic control board including at least one battery is disposed in the electronics section. The actuation section includes a prefill chamber, a setting piston disposed in the prefill chamber, an actuation device, an atmospheric chamber, and a pressure port. A predetermined amount of prefilled fluid at hydrostatic pressure is trapped between the setting piston and the actuation device in the prefill chamber. The actuation device isolates the prefilled fluid at hydrostatic pressure in the prefill chamber from the atmospheric chamber. Actuation occurs when, upon receipt of the predetermined pressure signal by the pressure sensor, the electronic control board transmits power to the actuation device, causing the prefilled fluid to flow through the actuation device and into the atmospheric chamber. ## Claims ### Claim 1 A system for use in a wellbore, comprising: a completion comprising at least one downhole tool, wherein the at least one downhole tool comprises a pilot valve; and an electronic trigger system comprising: a longitudinal housing comprising: a detection section; an electronics section; and an actuation section disposed therein; a pressure sensor disposed in the detection section, wherein the pressure sensor is configured to receive a predetermined pressure signal; and an electronic control board comprising at least one battery disposed in the electronics section, wherein the actuation section comprises: a prefill chamber; a setting piston disposed in the prefill chamber, wherein a stem portion of the setting piston is coupled to the pilot valve; and an actuation device, wherein a predetermined amount of prefilled fluid at hydrostatic pressure is trapped between the setting piston and the actuation device in the prefill chamber; at least one atmospheric chamber, wherein the actuation device isolates the prefilled fluid at hydrostatic pressure in the prefill chamber from the at least one atmospheric chamber; and a pressure port, wherein actuation occurs when, upon receipt of the predetermined pressure signal by the pressure sensor, the electronic control board transmits power to the actuation device, causing the prefilled fluid to flow through the actuation device and into the at least one atmospheric chamber using the pressure port, wherein the longitudinal housing of the system is coupled to the at least one downhole tool for actuation of the at least one downhole tool, and wherein movement of the setting piston triggers an alternate path for pressure through the pilot valve to actuate the at least one downhole tool. ### Claim 2 (depends on 1) The system of claim 1, wherein the pressure sensor is configured to receive the predetermined pressure signal from a surface location. ### Claim 3 (depends on 1) The system of claim 1, wherein the pressure sensor is configured to receive the predetermined pressure signal from a downhole signal emitter. ### Claim 4 (depends on 1) The system of claim 1, wherein the predetermined pressure signal comprises a plurality of pressure pulses. ### Claim 5 (depends on 1) The system of claim 1, wherein the pressure port and the setting piston share a common seal bore. ### Claim 6 (depends on 1) The system of claim 1, wherein the actuation device is an electronic rupture disc. ### Claim 7 (depends on 1) The system of claim 1, wherein the flowing of the prefilled fluid from the prefill chamber into the at least one atmospheric chamber causes the setting piston to move linearly within the prefill chamber toward the actuation device. ### Claim 8 (depends on 1) The system of claim 1, wherein an inflow control device is installed in the pressure port. ### Claim 9 A method of actuating a downhole tool, comprising: deploying a completion in a wellbore, the completion comprising: at least one downhole tool comprising a pilot valve; and an electronic trigger system coupled to the at least one downhole tool, wherein the system comprises: a longitudinal housing coupled to the at least one downhole tool for actuation of the at least one downhole tool, the longitudinal housing comprising: a detection section; an electronics section; and an actuation section disposed therein; a pressure sensor disposed in the detection section, wherein the pressure sensor is configured to receive a predetermined pressure signal; and an electronic control board comprising at least one battery disposed in the electronics section, wherein the actuation section comprises: a prefill chamber; a setting piston disposed in the prefill chamber, wherein a stem portion of the setting piston is coupled to the pilot valve; and an actuation device, wherein a predetermined amount of prefilled fluid at hydrostatic pressure is trapped between the setting piston and the actuation device in the prefill chamber; at least one atmospheric chamber, wherein the actuation device isolates the prefilled fluid at hydrostatic pressure in the prefill chamber from the at least one atmospheric chamber; and a pressure port, wherein actuation occurs when, upon receipt of the predetermined pressure signal by the pressure sensor, the electronic control board transmits power to the actuation device, causing the prefilled fluid to flow through the actuation device and into the at least one atmospheric chamber using the pressure port; detecting the predetermined pressure signal by the pressure sensor; decoding the predetermined pressure signal on the electronic control board; transmitting power from the electronic control board to the actuation device; and actuating the at least one downhole tool by flowing the prefilled fluid through the actuation device and into the at least one atmospheric chamber using the pressure port, wherein movement of the setting piston triggers an alternate path for pressure through the pilot valve to actuate the at least one downhole tool. ### Claim 10 (depends on 9) The method of claim 9, wherein the pressure sensor is configured to receive the predetermined pressure signal from a surface location. ### Claim 11 (depends on 9) The method of claim 9, wherein the pressure sensor is configured to receive the predetermined pressure signal from a downhole signal emitter. ### Claim 12 (depends on 9) The method of claim 9, wherein the predetermined pressure signal comprises a plurality of pressure pulses. ### Claim 13 (depends on 9) The method of claim 9, wherein the actuation device is an electronic rupture disc. ### Claim 14 (depends on 9) The method of claim 9, wherein the pressure port and the setting piston share a common seal bore. ### Claim 15 (depends on 9) The method of claim 9, wherein the flowing of the prefilled fluid from the prefill chamber into the at least one atmospheric chamber causes the setting piston to move linearly within the prefill chamber toward the actuation device. ### Claim 16 (depends on 9) The method of claim 9, wherein an inflow control device is installed in the pressure port.