Centralizer
Patent
·
OSTI ID:6892371
A centralizer is described for mounting on a well casing to function in the annular space between the casing and a well bore or another casing. The centralizer comprises a pair of axially spaced apart collars slideably fixed to the exterior of the casing, outwardly bowed spring members spanning the space between the collars and substantially equally spaced circumferentially of the collars, one of the ends of the member attached to the upper collar, the opposite end thereof to the lower collar, each of the collars having upper and lower end edges of relatively lesser internal diameter, whereby to closely fit and engage the casing with the upper and lower end edges thereof, the intermediate portion of the collar between the end edges being of greater internal diameter than the upper and lower edges thereof, whereby to be spaced outwardly from the casing when the collars engage same, and the inboard, adjacent edges of the collars and parts of the collar intermediate portions next thereto being cut away in a plurality of spaced apart portions thereof, whereby to receive portions of the ends of the spring members thereunder and therepast.
- Assignee:
- Antelope Oil Tool and Mfg. Co., TX
- Patent Number(s):
- US 4651823
- OSTI ID:
- 6892371
- Country of Publication:
- United States
- Language:
- English
Similar Records
Line protector
Valve supporting arrangement of an internal combustion engine
Spring bow, centralizer, and related methods
Patent
·
Tue Aug 05 00:00:00 EDT 1986
·
OSTI ID:5376828
Valve supporting arrangement of an internal combustion engine
Patent
·
Tue May 27 00:00:00 EDT 1986
·
OSTI ID:5502180
Spring bow, centralizer, and related methods
Patent
·
Mon Nov 28 23:00:00 EST 1988
·
OSTI ID:6482832