Method and apparatus for the completion of an oil or gas well and the like

Patent · Tue Jan 12 04:00:00 EST 1988

OSTI ID:5409097

Tompkins, C R; Pitts, M

This patent describes an improved apparatus for isolating a damaged section of casing, isolating a formation, and pressure testing the apparatus while located in a cased well bore. The apparatus comprising: a first packer assembly having a flow passageway therethrough sealingly engaging the casing for isolating the formation; first valve means for closing the passageway through the first packer assembly during testing; a second packer assembly sealingly engaging the casing and having a flow passageway therethrough; first conduit means connecting the first and second packer assemblies with the flow passageways in communication; second valve means located in the first conduit means for permitting flow from the first conduit means into an annular space defined by the first and second packer assemblies; a third packer assembly sealingly engaging the casing having a passageway therethrough and connected in spaced relationship to the second packer assembly with the passageways in communication; second conduit means connected to the third packer and extending upwardly through the well bore forming an annulus with the casing where in pressure may be applied to pressure test the seal of the third packer assembly.

• Assignee: Dresser Industries, Inc., Dallas, TX
• Patent Number(s): US 4718496
• OSTI ID: 5409097
• 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 EQUIPMENT
DAMAGE
DESIGN
EQUIPMENT
FLOW REGULATORS
NATURAL GAS WELLS
OIL WELLS
PACKINGS
PRESSURIZING
TESTING
TOOLS
VALVES
WELL CASINGS
WELL COMPLETION
WELLS