One trip perforating and gravel pack system
Patent
·
OSTI ID:5910683
The invention provides a method and apparatus for effecting the perforating of a well casing and the gravel packing of the perforated areas of the well casing with one trip into the well of a combined perforating and gravel packing apparatus. This desirable objective is accomplished by a design of the crossover mandrel normally employed in gravel packing apparatus. The mandrel disclosed herein provides, in its run-in position, a continuous axial passage through its entire length, permitting a detonating bar to be dropped therethrough to actuate a perforating gun. Subsequent to the perforation operation, a ball is dropped and seated on an annular sleeve carried within the hollow mandrel which permits the development of internal pressure within the mandrel. Such internal pressure is employed not only to effect the setting of a fluid pressure actuated packer but also to shift the ball supporting sleeve downwardly and uncover a crossover port in the mandrel which permits the gravel packing operation to be carried out conventionally.
- Assignee:
- Baker International Corp.
- Patent Number(s):
- US 4540051
- OSTI ID:
- 5910683
- Country of Publication:
- United States
- Language:
- English
Similar Records
One trip perforating and gravel pack system
Method of field assembly of a selected number of shaped charges in a well casing perforating gun
Fail-safe one trip perforating and gravel pack system
Patent
·
Tue Sep 17 00:00:00 EDT 1985
·
OSTI ID:5920645
Method of field assembly of a selected number of shaped charges in a well casing perforating gun
Patent
·
Tue Oct 01 00:00:00 EDT 1985
·
OSTI ID:5865920
Fail-safe one trip perforating and gravel pack system
Patent
·
Mon Jan 27 23:00:00 EST 1986
·
OSTI ID:5784845