| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
|---|
| 11/21/2001 | EP1155218A1 Selective zonal isolation within a slotted liner |
| 11/21/2001 | EP1155217A2 A method for setting a packer in a well bore, and a packer |
| 11/20/2001 | US6318729 Seal assembly with thermal expansion restricter |
| 11/20/2001 | US6318482 Blowout preventer |
| 11/20/2001 | US6318472 Hydraulic set liner hanger setting mechanism and method |
| 11/20/2001 | US6318469 Completion equipment having a plurality of fluid paths for use in a well |
| 11/20/2001 | US6318461 High expansion elastomeric plug |
| 11/20/2001 | US6318460 Retrievable high pressure, high temperature packer apparatus with anti-extrusion system and method |
| 11/20/2001 | US6318458 Water-well-head adaptor |
| 11/20/2001 | CA2032986C Composition and process for selective water permeability reduction in hot salted hydrocarbon tanks |
| 11/15/2001 | WO2001086112A2 Mud bucket seal attachment |
| 11/15/2001 | US20010040052 Method and system for return of drilling fluid from a sealed marine riser to a floating drilling rig while drilling |
| 11/14/2001 | EP1153320A1 Focused formation fluid sampling probe |
| 11/14/2001 | CN2459437Y Oil removing blowout preventer for polish rod of oil hole |
| 11/13/2001 | US6315053 Method of use and apparatus for a hydraulic tensioning device for inflatable packer element |
| 11/13/2001 | US6315051 Continuous circulation drilling method |
| 11/13/2001 | US6315050 Packer |
| 11/13/2001 | US6315046 Method of servicing a well |
| 11/13/2001 | US6315044 Pre-milled window for drill casing |
| 11/13/2001 | US6315041 Multi-zone isolation tool and method of stimulating and testing a subterranean well |
| 11/10/2001 | CA2347320A1 Rotating drilling head system with static seals |
| 11/08/2001 | WO2001084032A1 Clamping well casings |
| 11/08/2001 | WO2001083938A1 Compression set packer |
| 11/08/2001 | WO1999066171A3 Method and system for moving equipment into and through an oil and/or gas production well |
| 11/08/2001 | US20010037884 Hydraulic control system for downhole tools |
| 11/08/2001 | US20010037881 Well production enhancing device |
| 11/08/2001 | EP1144801A3 Method and system for moving equipment into and through an oil and/or gas production well |
| 11/07/2001 | EP1152119A2 An apparatus for running tubulars into a borehole |
| 11/07/2001 | EP1151180A1 Tubing anchor |
| 11/07/2001 | EP1151178A1 Subsea completion apparatus |
| 11/07/2001 | CN2458420Y Pail type slip packer |
| 11/06/2001 | US6311792 Casing clamp |
| 11/06/2001 | US6311776 Dual diverter and orientation device for multilateral completions and method |
| 11/06/2001 | US6311775 Pumpdown valve plug assembly for liner cementing system |
| 11/06/2001 | US6311774 Method and apparatus for securing a well casing to a wellbore |
| 11/06/2001 | US6311772 Hydrocarbon preparation system for open hole zonal isolation and control |
| 11/06/2001 | US6311771 Plug for use in wellbore operations and apparatus for launching said plug |
| 11/06/2001 | US6311770 Pitless adapter assembly |
| 11/01/2001 | WO2001081712A1 Method and apparatus for injecting one or more fluids into a borehole |
| 11/01/2001 | WO2001081711A1 Coiled tubing line deployment system |
| 11/01/2001 | WO2001081710A1 Central circulation completion system |
| 11/01/2001 | WO2001080650A2 Packer, setting tool for a packer and method for setting a packer |
| 11/01/2001 | US20010036905 Filter cake cleanup and gravel pack methods for oil based or water based drilling fluids |
| 11/01/2001 | US20010035287 Data line deployment in hydrocarbon wells |
| 11/01/2001 | US20010035252 Method for manufacturing a wall thickness program into an elastomeric tubular component for incorporation into a packing device for use in a subterranean well |
| 11/01/2001 | CA2407436A1 Packer, setting tool for a packer and method for setting a packer |
| 10/31/2001 | EP1149980A2 Downhole hydraulic power unit |
| 10/31/2001 | EP1149139A1 Agent and method for sealing or consolidating rock, loose rock or soils, especially bore holes |
| 10/31/2001 | EP1076757A4 Method and apparatus for sealing between casing and wellhead connector structure |
| 10/31/2001 | CN2457334Y Perforation sealing bomb for oil well |
| 10/31/2001 | CN2457333Y Forced anti-jack slips |
| 10/31/2001 | CN2457332Y Improved drillable bridge plug |
| 10/31/2001 | CN2457331Y Hanging back-off packer |
| 10/31/2001 | CN2457330Y Polish rod packing of oil pamping well |
| 10/31/2001 | CN2457329Y Multifunction polish rod sealing device |
| 10/31/2001 | CN2457328Y Anti-theft device for wall head |
| 10/31/2001 | CN2457327Y Integrated casing head |
| 10/30/2001 | US6308780 Method for regaining mud circulation in operating well and device for its embodiment |
| 10/25/2001 | WO2001079654A1 High pressure rotating blowout preventer assembly |
| 10/25/2001 | WO2001079652A1 Top drive for casing connection |
| 10/25/2001 | US20010034153 Connector |
| 10/25/2001 | CA2850900A1 Top drive for casing connection |
| 10/25/2001 | CA2756624A1 Top drive for casing connection |
| 10/25/2001 | CA2406189A1 High pressure rotating blowout preventer assembly |
| 10/25/2001 | CA2344751A1 Downhole hydraulic power unit |
| 10/24/2001 | EP1147287A2 Procedures and equipment for profiling and jointing of pipes |
| 10/24/2001 | CN2455926Y Packer |
| 10/24/2001 | CN2455925Y Mechanical dual anchored packer |
| 10/24/2001 | CN2455924Y Packer for thickened oil production by steam injection |
| 10/24/2001 | CN2455923Y Blowout preventer |
| 10/24/2001 | CN2455922Y Security stuffing box |
| 10/23/2001 | US6305477 Apparatus and method for maintaining relatively uniform fluid pressure within an expandable well tool subjected to thermal variants |
| 10/23/2001 | US6305475 Method for simultaneously installing multiple strings within a wellbore and related tools |
| 10/23/2001 | US6305471 Pressure control apparatus |
| 10/23/2001 | CA2212978C Early evaluation formation testing system |
| 10/18/2001 | WO2001077484A1 Method and device for testing a well |
| 10/17/2001 | EP1144802A2 Profile formation |
| 10/17/2001 | EP1144801A2 Method and system for moving equipment into and through an oil and/or gas production well |
| 10/17/2001 | EP1144794A2 Control system for the workover of oil wells |
| 10/17/2001 | CN2454532Y 封隔器 Packer |
| 10/17/2001 | CN2454531Y Oil-tube rotating device |
| 10/17/2001 | CN2454530Y Portal loaded mud scraper |
| 10/17/2001 | CN2454529Y Portal mud scraper |
| 10/17/2001 | CN2454528Y Oil-tube oil wiper |
| 10/17/2001 | CN2454527Y Portal polish-rod sealing device |
| 10/16/2001 | US6302405 Anti-extrusion seal |
| 10/16/2001 | US6302217 Extreme service packer having slip actuated debris barrier |
| 10/16/2001 | US6302214 Apparatus and method for inflating packers in a drilling well |
| 10/16/2001 | US6302212 Tubing hanger and tree with horizontal flow and annulus ports |
| 10/16/2001 | US6302211 Apparatus and method for remotely installing shoulder in subsea wellhead |
| 10/16/2001 | US6302204 Method of obtaining improved geophysical information about earth formations |
| 10/16/2001 | US6302203 Apparatus and method for communicating with devices positioned outside a liner in a wellbore |
| 10/16/2001 | US6302202 Inflatable plug assembly for borehole |
| 10/16/2001 | US6302199 Mechanism for dropping a plurality of balls into tubulars used in drilling, completion and workover of oil, gas and geothermal wells |
| 10/16/2001 | US6302140 Cementing head valve manifold |
| 10/16/2001 | US6301959 Focused formation fluid sampling probe |
| 10/16/2001 | CA2192701C Pitless well adaptor |
| 10/14/2001 | CA2331195A1 Improved variable bore ram packer for tapered tubular members in a ram type blowout preventer |
| 10/11/2001 | WO2001075265A1 New and improved method and apparatus for cleaning wellbore casing |
| 10/11/2001 | US20010027868 Inflation element for a downhole tool having a pre-disposed bladder and/or cover, and method shaping tool for pre-disposing the bladder and/or cover |