Casing guide for well template

Patent · Tue Nov 15 04:00:00 EST 1988

OSTI ID:6338828

Leach, C P; White, C N

This patent describes a casing guide apparatus, comprising: a well template having a template housing with a housing bore therethrough defining a well opening; a cylindrical well casing received through the well opening; and bushing means, operably associated with the template and the casing, for permitting relative vertical movement between the template and the casing and for preventing relative lateral movement between the template and the casing at the well opening wherein the bushing means includes: a cylindrical bushing member having a cylindrical inner bushing bore within which the casing is closely received; and latch means, operably associated with the bushing member and the well opening of the template, for latching the bushing member into a fixed position within the well opening upon insertion of the casing and the bushing means downwardly into the well opening of the template the latch means including: an annular latching groove defined in the housing bore; and radially outwardly biased locking means, connected to the bushing member and extending radially outwardly from the bushing member, for receipt in the latching groove of the housing bore of the template.

• Assignee: Conoco Inc., Ponca City, OK
• Patent Number(s): US 4784224
• OSTI ID: 6338828
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
BUSHINGS
FASTENERS
INSTALLATION
MECHANICAL STRUCTURES
NATURAL GAS WELLS
OFFSHORE PLATFORMS
OIL WELLS
POSITIONING
SUPPORTS
UNDERWATER OPERATIONS
WELL CASINGS
WELL COMPLETION
WELLS