Method and apparatus for setting, unsetting, and retrieving a packer from a subterranean well

Patent · Tue Nov 24 04:00:00 EST 1987

OSTI ID:5602093

Halbardier, F A

A method for setting, unsetting, and retrieving an inflatable packer utilizing a downhole packer actuator assembly having an upper connector portion and a lower actuator portion, a remedial tubing string and a wireline in a subterranean well including a large diameter bore and a relatively small diameter tubing string is described comprising: connecting the upper connector portion of the packer actuator assembly and the lower portion of the packer actuator assembly, suspending the packer actuator assembly and the inflatable packer from the remedial tubing string; lowering the inflatable while suspended from the remedial tubing string downhole through the small diameter tubing string and to a selected location within the subterranean well; passing pressurized fluid through the remedial tubing string, the lower actuator portion, and to the inflatable packer to set the packer within the large diameter bore; unsetting the inflatable packer; passing pressurized fluid through the remedial tubing string and to the packer actuator assembly; retrieving the upper connector portion of the packer actuator assembly from the subterranean well through the small diameter tubing string; interconnecting the wireline and the lower portion of the packer actuator assembly while positioned within the well; retrieving the lower portion of the packer actuator assembly and the inflatable packer.

• Assignee: Baker Oil Tools, Inc., Orange, CA
• Patent Number(s): US 4708208
• OSTI ID: 5602093
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
COUPLINGS
DESIGN
DRILL PIPES
DRILLING EQUIPMENT
EQUIPMENT
FLUID MECHANICS
HYDRAULICS
MATERIALS HANDLING
MATERIALS HANDLING EQUIPMENT
MECHANICS
NATURAL GAS WELLS
OIL WELLS
PACKINGS
PIPES
TOOLS
WELL COMPLETION
WELLS