FIG. 1 is a perspective view of a casing centralizer showing our new design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a right-side elevational view thereof;
FIG. 5 is a left-side elevational view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view.
The broken lines showing a cylinder are included for the purposes of illustrating only and form no part of the claimed design.
Patent |
Priority |
Assignee |
Title |
1460632, |
|
|
|
1767198, |
|
|
|
1807050, |
|
|
|
2166116, |
|
|
|
2228648, |
|
|
|
2546582, |
|
|
|
2602512, |
|
|
|
2605844, |
|
|
|
2622684, |
|
|
|
2659439, |
|
|
|
2715552, |
|
|
|
2728399, |
|
|
|
2865605, |
|
|
|
2943009, |
|
|
|
3049382, |
|
|
|
3080926, |
|
|
|
3125382, |
|
|
|
3128827, |
|
|
|
3289767, |
|
|
|
3292708, |
|
|
|
3320004, |
|
|
|
3410613, |
|
|
|
3528499, |
|
|
|
3613783, |
|
|
|
3747700, |
|
|
|
3762472, |
|
|
|
3933203, |
Mar 27 1975 |
|
Centralizer for production string including support means for control lines |
3938853, |
May 01 1974 |
Eastman Christensen Company |
Shrink-fit sleeve apparatus for drill strings |
3955625, |
Mar 06 1975 |
DOWELL SCHLUMBERGER INCORPORATED, |
Cementing basket |
3963075, |
Mar 27 1975 |
|
Centralizer for elastomer coated blast joint |
4050514, |
Sep 03 1976 |
The Steel Company of Canada, Limited |
Paraffin sucker rod scraper and rod centralizer |
4088185, |
Aug 10 1973 |
J. M. Huber Corporation |
Molded plastic paraffin scrapers and centralizers |
4146060, |
Jul 25 1977 |
Smith International, Inc. |
Drill pipe wear belt assembly |
4275935, |
Jul 17 1979 |
DIAMANT BOART STRATABIT S A , A BELGIAN CORP |
Drilling stabilizer |
4372562, |
Sep 09 1981 |
HALLIBURTON COMPANY, A CORP OF DE |
Inflatable packer with liquid resin anchored reinforcing sheath |
4396234, |
Apr 06 1981 |
GARRETT, WILLIAM R |
Weldable blade stabilizer |
4436118, |
Jul 25 1977 |
SMITH INTERNATIONAL INC A DE CORP |
Sleeved drill pipe |
4595058, |
Aug 28 1984 |
Shell Oil Company |
Turbulence cementing sub |
4658896, |
Aug 16 1985 |
|
Apparatus for a tubular string and method of attaching the same thereto |
4757861, |
Aug 06 1987 |
NATIVE VENTURE CAPITAL CO LTD , A BODY CORPORATE UNDER THE LAW OF CANADA |
Oil well sucker rod coupling assembly |
4796670, |
Oct 15 1987 |
Exxon Production Research Company; EXXON PRODUCTION RESEARCH COMPANY, A CORP OF DE |
Drill pipe protector |
4825947, |
Oct 30 1986 |
|
Apparatus for use in cementing a casing string within a well bore |
4858688, |
Jun 27 1988 |
|
Sucker rod guide |
4919202, |
Feb 08 1989 |
|
Sucker rod guide bearing |
4938299, |
Jul 27 1989 |
BAROID TECHNOLOGY, INC |
Flexible centralizer |
4984633, |
Oct 20 1989 |
WEATHERFORD U S INC , A CORP OF DE |
Nozzle effect protectors, centralizers, and stabilizers and related methods |
5095981, |
Feb 22 1985 |
|
Casing centralizer |
5115863, |
Apr 05 1991 |
ROBBINS & MYERS ENERGY SYSTEMS, L P |
Low turbulence rod guide |
5179140, |
Dec 27 1988 |
TUBOSCOPE I P INC |
Filled resin compositions and articles made therefrom |
5191938, |
Dec 16 1991 |
FLOW CONTROL EQUIPMENT, INC |
Rod guide assembly and method of its installation on a rod shank |
5247990, |
Mar 12 1992 |
ROBBINS & MYERS ENERGY SYSTEMS, L P |
Centralizer |
5277254, |
Mar 28 1991 |
ROBBINS & MYERS ENERGY SYSTEMS, L P |
Helical rod guide |
5332049, |
Sep 29 1992 |
Hexagon Technology AS |
Composite drill pipe |
5339896, |
May 06 1993 |
ROBBINS & MYERS ENERGY SYSTEMS, L P |
Field installable rod guide and method |
5492174, |
May 26 1993 |
ROBBINS & MYERS ENERGY SYSTEMS, L P |
Rod guide with enhanced erodable volume |
5692562, |
Apr 13 1995 |
ROBBINS & MYERS ENERGY SYSTEMS, L P |
Well rod, centralizer and centralizer stop interfaces with wear reducing surface |
5697442, |
Nov 13 1995 |
Halliburton Company |
Apparatus and methods for use in cementing a casing string within a well bore |
5797455, |
Mar 12 1994 |
Downhole Products Limited |
Casing centraliser |
5860760, |
Aug 12 1994 |
Downhole Products Limited |
Gripping device |
5881810, |
Aug 24 1996 |
WEATHERFORD TECHNOLOGY HOLDINGS, LLC |
Centralizer |
5908072, |
May 02 1997 |
ANTELOPE OIL TOOL & MFG CO , LLC |
Non-metallic centralizer for casing |
5937948, |
Jan 15 1998 |
RAY OIL TOOL COMPANY, INC |
Extruded casing centralizer |
6006830, |
Mar 12 1994 |
Downhole Products Limited |
Casing centraliser |
6102118, |
Dec 30 1998 |
|
Multi-purpose adjustable centralizer system with tool |
6283205, |
Jan 19 2000 |
FORUM US, INC |
Polymeric centralizer |
6435275, |
Aug 23 1999 |
Downhole Products Limited |
Casing centralizer |
6439304, |
Feb 05 1999 |
FORUM US, INC |
Stand-off device |
6585052, |
May 30 2000 |
NABORS DRILLING TECHNOLOGIES USA, INC |
Casing centralizer |
6659173, |
Jan 24 1998 |
Downhole Products Limited |
Downhole tool |
6666267, |
Nov 15 1997 |
TERCEL IP LIMITED |
Downhole tools |
6725939, |
Jun 18 2002 |
BAKER HUGHES HOLDINGS LLC |
Expandable centralizer for downhole tubulars |
6830102, |
Jan 22 2000 |
Downhole Products Limited |
Centraliser |
6845816, |
Mar 10 2000 |
Downhole Products Limited |
ADI centralizer |
7082997, |
Jun 15 2001 |
NABORS DRILLING TECHNOLOGIES USA, INC |
Pipe centralizer and method of attachment |
7096939, |
Mar 16 2002 |
Downhole Products Limited |
Slotted expandable centraliser |
7159668, |
Jun 21 2000 |
DEEP CASING TOOLS LIMITED |
Centralizer |
7357178, |
Jun 30 2000 |
TERCEL IP LIMITED |
In and relating to downhole tools |
7409758, |
Oct 29 2003 |
Wells Fargo Bank, National Association |
Vibration damper systems for drilling with casing |
7604059, |
Jun 30 2000 |
TERCEL IP LIMITED |
Downhole tools |
7694733, |
Jan 18 2005 |
Downhole Products plc |
Centralizer |
7814633, |
Sep 23 2002 |
NABORS DRILLING TECHNOLOGIES USA, INC |
Pipe centralizer and method of forming |
8167034, |
Jun 19 2008 |
Offshore Manufacturing & Design, LLC |
Device for centering a well casing |
8701759, |
Mar 14 2013 |
BULK MOLDING COMPOUNDS, INC |
Casing centralizer |
20010032722, |
|
|
|
20020023749, |
|
|
|
20030164236, |
|
|
|
20060070731, |
|
|
|
20080164019, |
|
|
|
20100059218, |
|
|
|
20110114307, |
|
|
|
20140124269, |
|
|
|
20140151026, |
|
|
|
20140158372, |
|
|
|
20150060050, |
|
|
|
CA1032867, |
|
|
|
CA1154380, |
|
|
|
D363293, |
Sep 27 1993 |
|
Angled severing head having centralizer assembly |
D663750, |
Oct 28 2011 |
TERCEL OILFIELD PRODUCTS USA L L C |
Casing centralizer |
D664568, |
Oct 28 2011 |
TERCEL OILFIELD PRODUCTS USA L L C |
Casing centralizer |
D665568, |
Dec 01 2011 |
|
Stocking |
D665824, |
Oct 28 2011 |
TERCEL OILFIELD PRODUCTS USA L L C |
Casing centralizer |
D665825, |
Oct 28 2011 |
TERCEL OILFIELD PRODUCTS USA L L C |
Casing centralizer |
D674817, |
Oct 28 2011 |
TERCEL OILFIELD PRODUCTS USA L L C |
Casing centralizer |
D674818, |
Oct 28 2011 |
TERCEL OILFIELD PRODUCTS USA L L C |
Casing centralizer |
D676464, |
Apr 04 2012 |
SUMMIT CASING SERVICES, LLC |
Casing centralizer having straight blades |
D849800, |
Apr 04 2012 |
SUMMIT CASING SERVICES, LLC |
Casing centralizer having spiral blades |
EP138603, |
|
|
|
EP140311, |
|
|
|
EP297716, |
|
|
|
EP333450, |
|
|
|
EP671546, |
|
|
|
GB2016063, |
|
|
|
GB2171436, |
|
|
|
GB2226520, |
|
|
|
GB2233690, |
|
|
|
GB2249333, |
|
|
|
GB2275284, |
|
|
|
GB2282615, |
|
|
|
GB2288198, |
|
|
|
GB2304753, |
|
|
|
GB2329209, |
|
|
|
GB682362, |
|
|
|
WO166904, |
|
|
|
WO204781, |
|
|
|
WO910593, |
|
|
|
WO9510685, |
|
|
|
WO9521986, |
|
|
|
WO9634173, |
|
|
|
WO9837302, |
|
|
|
WO9925949, |
|
|
|