| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
|---|
| 08/28/2001 | US6281489 Monitoring of downhole parameters and tools utilizing fiber optics |
| 08/28/2001 | US6279658 Method of forming and servicing wellbores from a main wellbore |
| 08/28/2001 | US6279655 Thixotropic materials |
| 08/28/2001 | US6279654 Method and multi-purpose apparatus for dispensing and circulating fluid in wellbore casing |
| 08/28/2001 | US6279392 Method and system for distributed well monitoring |
| 08/23/2001 | WO2001061148A2 Filter cake cleanup and gravel pack methods for oil based or water based drilling fluids |
| 08/23/2001 | WO2001061147A1 Circulation tool for use in gravel packing of wellbores |
| 08/23/2001 | WO2001061146A1 Method and apparatus for stimulation of multiple formation intervals |
| 08/23/2001 | WO2001061145A1 Intervention device for a subsea well, and method and cable for use with the device |
| 08/23/2001 | WO2001061144A1 Digital hydraulic well control system |
| 08/23/2001 | WO2001060545A1 Expanding a tubular member |
| 08/23/2001 | WO2001060429A2 Vestibular irrigator test system (vits) |
| 08/23/2001 | US20010015277 Packer |
| 08/22/2001 | EP1125344A1 Electrical connector system |
| 08/22/2001 | EP1125036A1 Making up and breaking out of a tubing string in a well while maintaining continuous circulation |
| 08/22/2001 | EP0851965B1 Simplified xmas tree using sub-sea test tree |
| 08/22/2001 | CN2444055Y Preventing offset wear device for inner cavity of blow-out preventer |
| 08/22/2001 | CN2444054Y Well head device for extracting oil with turning regulating type suspending device |
| 08/22/2001 | CN1069945C Heat-resistant plugging agent for oil bearing reservoirs and preparing method thereof |
| 08/21/2001 | US6276690 Ribbed sealing element and method of use |
| 08/21/2001 | US6276455 Subsea gas separation system and method for offshore drilling |
| 08/21/2001 | US6276454 Tubing injection systems for oilfield operations |
| 08/21/2001 | US6276451 Pressure relief system for live well snubbing |
| 08/21/2001 | US6276438 Energy systems |
| 08/21/2001 | US6276386 Charging device for hydraulic systems |
| 08/21/2001 | CA2128337C Case cementing method and system |
| 08/16/2001 | US20010013415 Apparatus and method for hydraulically actuating a downhole from a remote location |
| 08/16/2001 | US20010013414 Floating spar for supporting production risers |
| 08/16/2001 | US20010013411 Methods and associated apparatus for downhole data retrieval, monitoring and tool actuation |
| 08/16/2001 | US20010013410 Methods and associated apparatus for downhole data retrieval, monitoring and tool actuation |
| 08/16/2001 | EP1123907A2 Cementing casing strings in deep wells |
| 08/15/2001 | CN2443143Y 压裂封隔器 Fracturing packer |
| 08/15/2001 | CN1308714A Plexus products international limited |
| 08/14/2001 | US6273195 Downhole flow and pressure control valve for wells |
| 08/14/2001 | US6273192 Method for strengthening a subterranean formation |
| 08/14/2001 | US6273191 Preparing a cement of hydraulic cement, water reducing, dispersing, compressive strength enhancing, set retarding and set accelerating additives and water; placing in an anulus between the casing string and well bore and allowing to set |
| 08/14/2001 | US6273190 Wellbore sidetrack plug |
| 08/09/2001 | WO2001057395A1 Controlling activation of devices |
| 08/09/2001 | US20010011593 Well completion system with an annular bypass and a solid stopper means |
| 08/09/2001 | US20010011592 Preloading type connector |
| 08/09/2001 | CA2334521A1 Cementing casing strings in deep water offshore wells |
| 08/08/2001 | EP1121508A1 Drilling method |
| 08/08/2001 | EP0877852B1 Inflatable packer |
| 08/08/2001 | CN2441973Y Water injection packet for oil field |
| 08/08/2001 | CN2441971Y Negative pressure ball injector for oil well sand washing temporary blocking |
| 08/07/2001 | US6269878 Drillable inflatable packer and methods of use |
| 08/07/2001 | US6269875 Chemical stick storage and delivery system |
| 08/07/2001 | US6269641 Stroke control tool for subterranean well hydraulic actuator assembly |
| 08/02/2001 | WO2001055550A1 Crossover tree system |
| 08/02/2001 | WO2001055549A1 Tubing hanger shuttle valve |
| 08/02/2001 | WO2001018357A3 Methods and associated apparatus for downhole data retrieval, monitoring and tool actuation |
| 08/02/2001 | WO2000047864A9 Subsea completion apparatus |
| 08/02/2001 | WO1999051704A8 Injection molded degradable casing perforation ball sealers |
| 08/01/2001 | EP0828921B1 Activating means for drilling apparatus |
| 08/01/2001 | EP0698175A4 Well plugging apparatus and method |
| 08/01/2001 | CN2440942Y Slip packer with large inside diameter |
| 08/01/2001 | CN2440941Y Pressure tester for preventing blowout |
| 08/01/2001 | CN2440940Y Casing head |
| 08/01/2001 | CN2440939Y Calibrator for packing casing |
| 08/01/2001 | CN1306149A Technology for removing stratum blocking of oil well or water injection well by means of ClO2/hydrochloric acid composition |
| 07/31/2001 | US6268911 Monitoring of downhole parameters and tools utilizing fiber optics |
| 07/31/2001 | US6267419 Remotely actuated and locked hub clamp |
| 07/31/2001 | US6267180 Packer releasing tool and method for releasing a packer assembly from a wellbore |
| 07/25/2001 | EP0927085A4 In situ deep remediation injection system & method |
| 07/24/2001 | US6263987 One pass drilling and completion of extended reach lateral wellbores with drill bit attached to drill string to produce hydrocarbons from offshore platforms |
| 07/24/2001 | US6263982 Method and system for return of drilling fluid from a sealed marine riser to a floating drilling rig while drilling |
| 07/24/2001 | US6263970 Wellhead device for retaining the solid particles carried by the production fluid |
| 07/24/2001 | US6263968 Apparatus and methods for completing a wellbore |
| 07/19/2001 | WO2001051764A1 Telescoping tool |
| 07/19/2001 | WO2001051758A2 Subsea completion annulus monitoring and bleed down system |
| 07/19/2001 | CA2397101A1 Telescoping tool |
| 07/18/2001 | EP1116860A1 Subterranean well tool and slip assembly |
| 07/18/2001 | CN2439541Y Thermal packer |
| 07/18/2001 | CN2439540Y Thelf-proof well head apparatus |
| 07/18/2001 | CN2439539Y Multi-functional well head sealing mean for pumping well |
| 07/17/2001 | USRE37283 Apparatus for the remote measurement of physical parameters |
| 07/17/2001 | US6260817 Hydraulic blowout preventer assembly for production wellhead |
| 07/17/2001 | US6260624 Internal production riser primary tieback |
| 07/17/2001 | US6260622 Apparatus and method of injecting treatment fluids into a formation surrounding an underground borehole |
| 07/17/2001 | US6260618 Method for locating placement of a guide stock in a multilateral well |
| 07/12/2001 | US20010007284 Downhole apparatus |
| 07/11/2001 | EP1114239A2 Plug and plug set for use in wellbore |
| 07/11/2001 | EP1114238A1 Lubricator |
| 07/11/2001 | CN1302942A Oil recovery technique combining chemical handling with water blocking in oil well |
| 07/11/2001 | CA2328666A1 Wellhead assembly |
| 07/10/2001 | US6257549 Actuation module |
| 07/10/2001 | US6257338 Method and apparatus for controlling fluid flow within wellbore with selectively set and unset packer assembly |
| 07/10/2001 | CA2100254C Connecting apparatus |
| 07/05/2001 | WO2001048352A1 A system for intervention of subsea wells |
| 07/04/2001 | CN2437847Y Packing kit |
| 07/04/2001 | CN2437846Y Packing kit for thermal recovery |
| 07/04/2001 | CN2437845Y Side through electric immersed pump wellhead |
| 07/03/2001 | US6253857 Downhole hydraulic power source |
| 07/03/2001 | US6253856 Pack-off system |
| 07/03/2001 | US6253854 Emergency well kill method |
| 07/03/2001 | US6253850 Selective zonal isolation within a slotted liner |
| 07/03/2001 | US6253848 Method of obtaining improved geophysical information about earth formations |
| 06/27/2001 | CN2436645Y High pressure difference encapsulation tube |
| 06/27/2001 | CN2436644Y Thermal packer for vapour injection well |
| 06/27/2001 | CN1067737C Injection-type chemical composition for stabilization and reinforcement process using same |