Hydraulically set well packer

Patent · Tue Jan 19 04:00:00 EST 1982

OSTI ID:5557676

Mullins, A A

A double grip well bore packer which is run into a well casing on a tubular conduit string has actuator means responsive to applied fluid pressure to set slips and to force a packing into engagement with the casing, and the setting force is locked into the packing. The applied setting force results from relative axial movement between an inner body mandrel, a setting mandrel and a housing surrounding the lower end of the inner body mandrel to define a pressure chamber housing a releasing piston. A bottom member defines the lower end of the housing and provides a mounting for a removable plug which closes the tubing bore to permit build-up of tubing pressure to set the packer, including limited pressure induced upward movement of the inner mandrel body relative to the bottom member to facilitate the application of the setting forces.

• Assignee: Baker International Corp
• Patent Number(s): US 4311195
• OSTI ID: 5557676
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
BOREHOLES
CAVITIES
DESIGN
DRILL PIPES
DRILLING EQUIPMENT
EQUIPMENT
HYDRAULIC EQUIPMENT
PACKINGS
PIPES
WELL CASINGS
WELLS