Pressure responsive perforating and testing system
Patent
·
OSTI ID:5430486
In accordance with an illustrative embodiment of the present invention, a well perforating and testing system includes packer and test valve means for respectively isolating a well bore interval and controlling flow of well fluids therefrom, a perforating gun connected below the packer means, and firing means responsive to a greater pressure in the well annulus above the packer means than in said isolated interval for actuating the perforating gun so theat the casing can be perforated at underbalanced pressure conditions.
- Assignee:
- Schlumberger Technology Corporation
- Patent Number(s):
- US 4509604
- OSTI ID:
- 5430486
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
03 NATURAL GAS
030200 -- Natural Gas-- Reserves
Geology
& Exploration
CONTROL
CONTROL EQUIPMENT
DRILL STEM TESTING
EQUIPMENT
FLOW REGULATORS
MWD SYSTEMS
PACKINGS
PERFORATION
PRESSURE CONTROL
PRESSURE REGULATORS
SPARGERS
TESTING
WELL CASINGS
020200* -- Petroleum-- Reserves
Geology
& Exploration
03 NATURAL GAS
030200 -- Natural Gas-- Reserves
Geology
& Exploration
CONTROL
CONTROL EQUIPMENT
DRILL STEM TESTING
EQUIPMENT
FLOW REGULATORS
MWD SYSTEMS
PACKINGS
PERFORATION
PRESSURE CONTROL
PRESSURE REGULATORS
SPARGERS
TESTING
WELL CASINGS