| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
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| 09/21/2005 | CN2727384Y Major structure for hands-free well head |
| 09/21/2005 | CN2727383Y Tensile tubing hanger |
| 09/21/2005 | CN2727382Y Plug for master control valve pressure replacement for well head assembly |
| 09/21/2005 | CN1671943A Method for construction and completion of injection wells |
| 09/20/2005 | US6945330 Slickline power control interface |
| 09/20/2005 | US6945326 Non-rotating cement wiper plugs |
| 09/20/2005 | CA2289374C Unlocking packer setting method and device |
| 09/18/2005 | CA2461524A1 Method of sealing subterranean zones |
| 09/15/2005 | WO2005085587A2 Method for accelerating oil well construction and production processes and heating device therefor |
| 09/15/2005 | WO2005085586A1 Improved well fluids and methods of use in subterranean formations |
| 09/15/2005 | WO2005085580A1 A method and device for establishing an underground well |
| 09/15/2005 | WO2005062749A3 System for drilling oil and gas wells using a concentric drill string to deliver a dual density mud |
| 09/15/2005 | WO2005017300A3 Continuous monobore liquid lining system |
| 09/15/2005 | US20050199401 System and Method to Seal Using a Swellable Material |
| 09/15/2005 | US20050199399 Lock for a downhole tool with a reset feature |
| 09/15/2005 | US20050199390 downhole tool contains an inner tubing, outer tubing and a mixing chamber formed between the bottom end of both tubes; for pumping, mixing first and second components of the cement sealant and discharging; monitoring the formed cement properties |
| 09/15/2005 | US20050199307 Sealing method and apparatus |
| 09/15/2005 | CA2559140A1 A method and device for establishing an underground well |
| 09/15/2005 | CA2558055A1 Compositions and methods for controlling unconsolidated particulates |
| 09/14/2005 | EP1415104A4 Valve system and method |
| 09/14/2005 | CN2725515Y Packer used for deep well pressure cracking |
| 09/14/2005 | CN2725514Y Steel wire cord sutomatic expansion type oil field packer rubber cylinder |
| 09/14/2005 | CN2725513Y Impact small diameter plug |
| 09/14/2005 | CN2725512Y Overflow valve |
| 09/14/2005 | CN2725511Y Pressurized operation sealed hydraulic pressurization power head |
| 09/14/2005 | CN2725510Y Inside contraction compression type self taking packing box device |
| 09/13/2005 | US6943697 Reservoir management system and method |
| 09/13/2005 | US6943340 Method and apparatus of providing an optical fiber along a power supply line |
| 09/13/2005 | US6942192 Gate valve with flow-through gate |
| 09/13/2005 | US6942039 Flapper valve and associated method for single trip retrieval of packer tools |
| 09/13/2005 | US6942038 Mud diverter and method for horizontal drilling |
| 09/13/2005 | US6942032 Resistive down hole heating tool |
| 09/13/2005 | US6942028 Slim-bore tubing hanger |
| 09/13/2005 | CA2360966C System with a compliant guide and method for inserting a coiled tubing into an oil well |
| 09/13/2005 | CA2249432C Method and apparatus using coiled-in-coiled tubing |
| 09/12/2005 | CA2500520A1 System and method to seal using a swellable material |
| 09/09/2005 | WO2005083230A1 Stripper rubber insert assembly |
| 09/09/2005 | WO2005083229A1 Removable surface pack-off device for reverse cementing applications |
| 09/09/2005 | WO2005083228A1 Connection system for subsea flow interface equipment |
| 09/09/2005 | WO2005081780A2 Electric-hydraulic power unit |
| 09/09/2005 | WO2003070565A3 Subsea intervention system, method and components thereof |
| 09/08/2005 | US20050196243 Riser apparatus assembly and method of installing same |
| 09/08/2005 | US20050194190 Method for accelerating oil well construction and production processes and heating device therefor |
| 09/08/2005 | US20050194188 Method of drilling and completing multiple wellbores inside a single caisson |
| 09/08/2005 | US20050194144 Well fluids and methods of use in subterranean formations |
| 09/08/2005 | US20050194143 One trip perforating, cementing, and sand management apparatus and method |
| 09/08/2005 | US20050194140 Methods useful for diverting aqueous fluids in subterranean operations |
| 09/07/2005 | EP1570153A1 Downhole safety valve for central circulation completion system |
| 09/07/2005 | EP1570151A2 A cable duct device in a swelling packer |
| 09/07/2005 | CN2723675Y Detactable wellhead device of screw rod pump oil production system |
| 09/07/2005 | CN2723671Y Down hole operation blowout retaining ball for water injection well |
| 09/07/2005 | CN2723670Y 油井盘根更换器 Well packing changer |
| 09/07/2005 | CN1664306A Method for redevelopment of junked drowned oil field |
| 09/06/2005 | US6938698 Shear activated inflation fluid system for inflatable packers |
| 09/06/2005 | US6938696 Backpressure adapter pin and methods of use |
| 09/06/2005 | US6938695 Fully recoverable drilling control pod |
| 09/06/2005 | CA2352604C Expandable tubing joint and through-tubing multilateral system and method |
| 09/06/2005 | CA2293170C Polymeric latexes with high multivalent-ion stability |
| 09/06/2005 | CA2207690C Remote control for a plug-dropping head |
| 09/01/2005 | WO2005080747A1 Methods and compositions for cementing wells |
| 09/01/2005 | WO2005080287A1 Use of substantially hydrated cement particulates in cementing and subterranean applications |
| 09/01/2005 | WO2005079403A2 System for controlling a hydraulic actuator, and methods of using same |
| 09/01/2005 | WO2005079224A2 Hydraulic impulse generator and frequency sweep mechanism for borehole applications |
| 09/01/2005 | US20050189121 Expandable packer with mounted exterior slips and seal |
| 09/01/2005 | US20050189120 Slotted slip element for expandable packer |
| 09/01/2005 | US20050189119 Inflatable sealing assembly and method for sealing off an inside of a flow carrier |
| 09/01/2005 | US20050189116 Submersible well pump installation procedure |
| 09/01/2005 | US20050189115 Subsea Intervention |
| 09/01/2005 | US20050189104 Resin impregnated continuous fiber plug with non-metallic element system |
| 09/01/2005 | US20050189103 Drillable bridge plug |
| 09/01/2005 | CA2555348A1 Cement compositions with improved corrosion resistance and methods of cementing in subterranean formations |
| 08/31/2005 | EP1436482A4 High power umbilicals for subterranean electric drilling machines and remotely operated vehicles |
| 08/31/2005 | CN2721869Y Layer adjusting producing tubular column with multiple oil layer |
| 08/31/2005 | CN2721865Y Reducing and cracking packer |
| 08/31/2005 | CN2721864Y Automatic wellhead for preventing bias grinding |
| 08/31/2005 | CN2721863Y Environmental protective two-stage sealer of polish rod |
| 08/31/2005 | CN2721862Y Device for preventing incline of packing box |
| 08/30/2005 | US6936574 Displacing a cement comprising a cement and a gelling additive into a well bore such that the gelling additive passes into the subterranean zone; allowing the gelling additive to form a crosslinked gel in the subterranean zone |
| 08/30/2005 | US6935432 Method and apparatus for forming an annular barrier in a wellbore |
| 08/30/2005 | US6935431 Well reference apparatus and method |
| 08/30/2005 | CA2320324C Improvements in or relating to reducing water flow |
| 08/25/2005 | WO2005078235A1 Suppressing fluid communication to or from a wellbore |
| 08/25/2005 | WO2005078234A1 Stripper rubber adapter |
| 08/25/2005 | WO2005078233A1 Power generation system |
| 08/25/2005 | WO2005078047A1 Drilling fluids with improved shale inhibition and methods of drilling in subterranean formations |
| 08/25/2005 | WO2005031205A3 Radial penetrator assembly and method |
| 08/25/2005 | US20050186033 Apparatus and method |
| 08/25/2005 | US20050184083 Remote actuator for ball injector |
| 08/25/2005 | US20050183865 Stripper rubber insert assembly |
| 08/25/2005 | US20050183863 Method of coupling a tubular member to a preexisting structure |
| 08/25/2005 | US20050183857 Removable surface pack-off device for reverse cementing applications |
| 08/25/2005 | US20050183856 Armored stripper rubber |
| 08/25/2005 | US20050183499 Method and device for measuring a path that has been covered |
| 08/25/2005 | DE102005004353A1 Unterwasser-Installationsvorrichtung Underwater installation device |
| 08/25/2005 | DE102004003481A1 Meßeinrichtung und Bohrvorrichtung für Tiefbohrungen sowie Verfahren zur Messung relevanter Daten bei Tiefbohrungen Measuring device and drilling device for deep drilling and method for measuring relevant data in deep wells |
| 08/25/2005 | CA2554237A1 Suppressing fluid communication to or from a wellbore |
| 08/24/2005 | EP1565644A1 Well treating process and system |
| 08/24/2005 | EP1278934B1 Tubing hanger system with gate valve |
| 08/24/2005 | CN2720107Y Horizontal well bridge plug capable of draging for |
| 08/24/2005 | CN2720106Y Stepped-depacking packer |