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Class Information
Number: 166/113
Name: Wells > Combined (e.g., with non-electrical indicating)
Description: Devices combined with means for other functions than operating, treating or making a well or a means for perfecting the functions of operating, treating or making a well, the said means not being provided for in preceding subclasses.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7472749 |
Drifting tubing |
Jan. 6, 2009 |
| 7246663 |
Positive engagement indicator for wireline fishing operations |
Jul. 24, 2007 |
| 7216703 |
Method and apparatus for testing and treatment of a completed well with production tubing in place |
May. 15, 2007 |
| 7073582 |
Method and apparatus for positioning a downhole tool |
Jul. 11, 2006 |
| 7025138 |
Method and apparatus for hydrogen sulfide monitoring |
Apr. 11, 2006 |
| 7000693 |
Control of hydrocarbon wells |
Feb. 21, 2006 |
| 6968905 |
Distributed control system |
Nov. 29, 2005 |
| 6860325 |
Downhole flow meter |
Mar. 1, 2005 |
| 6655452 |
Downhole gauge carrier apparatus |
Dec. 2, 2003 |
| 6547016 |
Apparatus for measuring weight and torque on drill bit operating in a well |
Apr. 15, 2003 |
| 6405588 |
Monitoring well |
Jun. 18, 2002 |
| 6374913 |
Sensor array suitable for long term placement inside wellbore casing |
Apr. 23, 2002 |
| 6349766 |
Chemical actuation of downhole tools |
Feb. 26, 2002 |
| 6334486 |
Downhole flow control devices |
Jan. 1, 2002 |
| 6321845 |
Apparatus for device using actuator having expandable contractable element |
Nov. 27, 2001 |
| 6302205 |
Method for locating a drill bit when drilling out cementing equipment from a wellbore |
Oct. 16, 2001 |
| 6227310 |
Method and apparatus for providing a magnetic direction reference |
May. 8, 2001 |
| 6098709 |
Wellhead union with safety interlock |
Aug. 8, 2000 |
| 6070662 |
Formation pressure measurement with remote sensors in cased boreholes |
Jun. 6, 2000 |
| 6016866 |
Rod guide with wear gauge |
Jan. 25, 2000 |
| 6006832 |
Method and system for monitoring and controlling production and injection wells having permanent downhole formation evaluation sensors |
Dec. 28, 1999 |
| 5957201 |
Verification apparatus and method for a static wellhead plug |
Sep. 28, 1999 |
| 5915476 |
Monitoring well |
Jun. 29, 1999 |
| 5906238 |
Downhole flow control devices |
May. 25, 1999 |
| 5787050 |
Well test imaging |
Jul. 28, 1998 |
| 5730219 |
Production wells having permanent downhole formation evaluation sensors |
Mar. 24, 1998 |
| 5662165 |
Production wells having permanent downhole formation evaluation sensors |
Sep. 2, 1997 |
| 5597042 |
Method for controlling production wells having permanent downhole formation evaluation sensors |
Jan. 28, 1997 |
| 5431227 |
Method for real time process control of well stimulation |
Jul. 11, 1995 |
| 5429190 |
Slick line casing and tubing joint locator apparatus and associated methods |
Jul. 4, 1995 |
| 5425417 |
Wellbore tool setting system |
Jun. 20, 1995 |
| 5375478 |
Test sample taking arrangement |
Dec. 27, 1994 |
| 5372193 |
Completion test tool |
Dec. 13, 1994 |
| 5320169 |
Gauge carrier |
Jun. 14, 1994 |
| 5293931 |
Modular, multi-level groundwater sampler |
Mar. 15, 1994 |
| 5269374 |
Locator method and apparatus |
Dec. 14, 1993 |
| 5167278 |
Well testing apparatus |
Dec. 1, 1992 |
| 5152340 |
Hydraulic set packer and testing apparatus |
Oct. 6, 1992 |
| 5113941 |
Surface sand detection monitoring device and method |
May. 19, 1992 |
| 5105881 |
Formation squeeze monitor apparatus |
Apr. 21, 1992 |
| 5095983 |
Multiphase production evaluation method using thru-tubing, wireline packoff devices |
Mar. 17, 1992 |
| 5095977 |
Coupon holder for corrosion test downhole in a borehole |
Mar. 17, 1992 |
| 5092402 |
Tubing end locator |
Mar. 3, 1992 |
| 5044437 |
Method and device for performing perforating operations in a well |
Sep. 3, 1991 |
| 5020590 |
Back pressure plug tool |
Jun. 4, 1991 |
| 5004048 |
Apparatus for injecting displacement plugs |
Apr. 2, 1991 |
| 4995457 |
Lift-through head and swivel |
Feb. 26, 1991 |
| 4971153 |
Method of performing wireline perforating and pressure measurement using a pressure measurement assembly disconnected from a perforator |
Nov. 20, 1990 |
| 4967853 |
Wireline retrievable gauge system |
Nov. 6, 1990 |
| 4964460 |
Shut-in tool |
Oct. 23, 1990 |
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