# US 11,898,424 B2 · Non-explosive casing perforating devices and methods > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,898,424 B2 - Document ID: US11898424B2 - Status: Granted - Kind: B2 - Application number: 17/566,107 - Filed: 2021-12-30 - Published: 2022-07-07 - Granted: 2024-02-13 - Earliest claimed: 2021-01-06 - Assignees: Geodynamics, Inc. - Applicants: Geodynamics, Inc. - Inventors: Dennis Roessler - Web page: https://patentgrep.com/patent/US11898424B2 ## CPC - E21B 43/112: Perforators with extendable perforating members, e.g. actuated by fluid means - E21B 43/119: Details, e.g. for locating perforating place or direction - E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS ## Abstract A non-explosive punch system for making perforations in a casing includes a housing and one or more punch elements configured to extend through a wall of the housing to perforate a casing of the well. An actuating device is located within the housing and may comprise a piston and an actuator block configured to actuate the one or more punch elements. An energy supply device is also located within the housing and may comprise a valve to direct fluid flow and a piston configured to use a pressure of a well fluid present in the casing, to actuate the actuating device. No explosive material is present in the punch system. ## Claims ### Claim 1 A non-explosive punch system for making perforations in a casing, the non-explosive punch system comprising: a housing extending along a longitudinal axis and configured to be deployed in a well; one or more punch elements configured to extend through a wall of the housing to perforate a casing of the well; an actuating device comprising a piston located within the housing and configured to actuate the one or more punch elements; and an energy supply device comprising a valve located within the housing and configured to selectively direct pressurized fluid to the piston, wherein there is no explosive material. ### Claim 2 (depends on 1) The punch system of claim 1, wherein the energy supply device further comprises a hydrostatic chamber, an oil chamber and an air chamber. ### Claim 3 (depends on 2) The punch system of claim 2, wherein the hydrostatic chamber is open to a bore of the casing and is configured to hold the well fluid. ### Claim 4 (depends on 3) The punch system of claim 3, wherein the oil chamber is configured to store oil and is separated from the hydrostatic chamber by a floating piston. ### Claim 5 (depends on 4) The punch system of claim 4, wherein the valve comprises a first port fluidly connected to the oil chamber and a second port fluidly connected to the air chamber. ### Claim 6 (depends on 1) The punch system of claim 1, wherein the actuating device further comprises: a double action enclosure that fluidly communicates with the energy supply device; an actuating block configured to directly press on the one or more punch elements. ### Claim 7 (depends on 6) The punch system of claim 6, wherein the one or more punch elements is mechanically connected to the actuation block. ### Claim 8 (depends on 6) The punch system of claim 6, wherein a movement of the actuating block along the longitudinal axis forces the one or more punch elements to move along a line perpendicular to the longitudinal axis. ### Claim 9 (depends on 8) The punch system of claim 8, wherein the actuating block is located within an actuation chamber, which is located within the housing, and the actuation chamber is sealed from the double action enclosure. ### Claim 10 (depends on 6) The punch system of claim 6, wherein the piston separates the double action enclosure into first and second chambers, the first chamber is fluidly connected to a port of the valve and the second chamber is fluidly connected to another port of the valve. ### Claim 11 (depends on 1) The punch system of claim 1, wherein the energy supply device further comprises a hydrostatic chamber, an oil chamber and an air chamber, the hydrostatic chamber is open to a bore of the casing and holds the well fluid, the oil chamber stores oil and is separated from the hydrostatic chamber by a floating piston, wherein the valve is fluidly connected at a first port with the oil chamber and fluidly connected at a second port with the air chamber, wherein the actuating device further comprises a double action enclosure that fluidly communicates with the energy supply device and an actuating block configured to directly press on the one or more punch elements, and wherein the actuating block is located within an actuation chamber, located within the housing, and the actuation chamber is sealed from the double action enclosure. ### Claim 12 (depends on 11) The punch system of claim 11 wherein the piston separates the double action enclosure into first and second chambers, the first chamber is fluidly connected to a third port of the valve and the second chamber is fluidly connected to a fourth port of the valve. ### Claim 13 (depends on 11) The punch system of claim 11, further comprising: a first passage fluidly connecting the oil chamber to the first port; and a second passage fluidly connecting the air chamber to the second port. ### Claim 14 (depends on 13) The punch system of claim 13, wherein the oil from the oil chamber is directed, in a retrieving state, into the second chamber to retrieve the piston, and in a punching state, into the first chamber to actuate the piston. ### Claim 15 (depends on 1) The punch system of claim 1, wherein the energy supply device further comprises an air chamber configured to hold air, a first passage fluidly connecting an outside of the housing to a first port of the valve, and a second passage fluidly connecting the air chamber to a second port of the valve. ### Claim 16 (depends on 15) The punch system of claim 15, wherein the actuating device further comprises: a double action enclosure that fluidly communicates with third and fourth ports of the valve; and an actuating block configured to directly press on the one or more punch elements. ### Claim 17 (depends on 16) The punch system of claim 16, wherein the actuating block is located within an actuation chamber, located within the housing, and the actuation chamber is sealed from the double action enclosure. ### Claim 18 (depends on 16) The punch system of claim 16, wherein the piston separates the double action enclosure into first and second chambers, the first chamber is fluidly connected to the third port of the valve and the second chamber is fluidly connected to the fourth port of the valve. ### Claim 19 A method for manufacturing a non-explosive punch system for making perforations in a casing, the method comprising: providing a housing extending along a longitudinal axis and configured to be deployed in a well; adding one or more punch elements to the housing, wherein the one or more punch elements are configured to extend through a wall of the housing to perforate a casing of the well; installing within the housing an actuating device comprising a piston configured to actuate the one or more punch elements; and fluidly connecting an energy supply device comprising a valve to a well fluid present in the casing and to the piston, wherein there is no explosive material. ### Claim 20 (depends on 19) The method of claim 19, wherein the energy supply device further comprises a hydrostatic chamber, an oil chamber and an air chamber, wherein the hydrostatic chamber is open to the bore of the casing and holds the well fluid, wherein the oil chamber stores oil and is separated from the hydrostatic chamber by a floating piston, and wherein the valve is fluidly connected at a first port with the oil chamber and fluidly connected at a second port with the air chamber.