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Sequential Fire TCP Gun String

IP.com Disclosure Number: IPCOM000256528D
Publication Date: 2018-Dec-06
Document File: 1 page(s) / 5K

Publishing Venue

The IP.com Prior Art Database

Abstract

A method to shoot individual TCP guns consisting of: 1. A series of TCP guns w/ 2. Individual pressure actuated initiators. 3. Gun shot actuated switch isolation subs. 4. Uses rupture disc override for each switch sub (3000psi over primary actuation pressure. 5. The system can be run with time delays. 6. The system is run with a retrievable mechanical packer on the bottom of the gun string to allow for pressure isolation from the previous perforations.

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Title: Sequential Fire TCP Gun String

Abstract: A method to shoot individual TCP guns consisting of: 1. A series of TCP guns w/ 2.

Individual pressure actuated initiators. 3. Gun shot actuated switch isolation subs. 4. Uses rupture

disc override for each switch sub (3000psi over primary actuation pressure. 5. The system can be

run with time delays. 6. The system is run with a retrievable mechanical packer on the bottom of

the gun string to allow for pressure isolation from the previous perforations.

Description: A method to shoot individual TCP guns consisting of: 1. A series of TCP guns w/

2. Individual pressure actuated initiators (rupture disc). 3. Gun shot actuated switch subs. 4. The

gun shot shatters a frangible bulkhead to open the next switch to bore hole pressure. 5. Bore hole

pressure acts on differential pressure in the switch sub to open the next gun iniator to borehole

pressure. 6. Uses rupture disc override for each switch sub (3000psi over primary rupture disc).

7. The system can be run with time delays. 8. The system is run with a retrievable mechanical

packer on the bottom of the gun string to allow for pressure isolation from the previous

perforations. Proposed method of operation: 1. Run the tool string in to full depth. 2. Set

retrievable packer. 3. Pressure up to fire first gun. 4. Gun shot shatters frangible bulkhead. 5.

Differential pressure pushes switch sleeve to open the next initiator to borehole pressure. 6.

Retrieve packer. 7. Move guns to next p...