Fluid pressure activated firing head for providing clean fluid
Patent
·
OSTI ID:6530302
This patent describes a fluid pressure actuated perforating gun suspendable on a well conduit by a packer having a central bore. The packer central bore is of greater diameter than the well conduit bore. The gun is supported by a tubing assembly depending from the packer and having an axially extending fluid passage connected to a fluid pressure actuated firing mechanism adjacent the perforating gun. The improvement comprises: a sleeve mounted in the packer central bore and having a bore substantially equal in diameter to the conduit bore and in communication with the well conduit bore. The sleeve defines an annular fluid passage extending upwardly through the packer and terminating at its upper end in an annular downwardly directed passage communicating with the well annulus above the packer. Pressure transmitting sealing means fixedly secure in the lower end of the downwardly directed passage.
- Assignee:
- Baker Oil Tools, Inc., Orange, CA
- Patent Number(s):
- US 4667735
- OSTI ID:
- 6530302
- Country of Publication:
- United States
- Language:
- English
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