Well perforating and completion apparatus and associated method

Patent · Tue Jun 18 04:00:00 EDT 1985

OSTI ID:6367919

McGlothen, J R

A well perforating and completion apparatus includes a packer connectable to the lower end of a tubing string, a vent assembly connected below the packer for communication between the tubing string and the annulus, a well perforating gun assembly having a hydraulically actuatable detonator and a hydraulic actuating fluid flow path between the detonator and the earth surface. A releasable coupling is provided between the packer and the vent assembly to permit disconnecting and dropping of the vent assembly and perforating gun assembly from the tubing string after the perforating has been accomplished to leave an open ended tubing string in the well. The well perforation and completion method of this invention includes assemblying the tool string on the tubing string then running it into the well and positioned with the perforating gun and the packer at the desired location. The packer is set then the perforating gun fired by manipulating the hydraulic fluid pressure in the well through the hydraulic fluid flow path. Well production can then begin immediately through the vent assembly. Provided the perforating gun assembly is to be detached further manipulation of hydraulic pressure in the well or in an alternative mechanical manipulation of the coupling is used.

• Assignee: Dresser Industries Inc.
• Patent Number(s): US 4523643
• OSTI ID: 6367919
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
CONTROL
DETONATORS
DRILL PIPES
DRILLING EQUIPMENT
EQUIPMENT
FLUID MECHANICS
FLUIDS
HYDRAULICS
MECHANICS
NATURAL GAS WELLS
OIL WELLS
PACKINGS
PERFORATION
PIPES
PRESSURE CONTROL
WELL COMPLETION
WELLS
WORKING FLUIDS