| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
|---|
| 08/24/2005 | CN2720105Y Pressure-conductive balanced packer |
| 08/24/2005 | CN2720104Y 全封闭液压封隔器 Closed hydraulic packer |
| 08/24/2005 | CN2720103Y Constant-flow eccentric water-distribution blocking device |
| 08/24/2005 | CN2720102Y On-water tool capable of draging for drilling and blocking |
| 08/24/2005 | CN2720101Y Partial-pressure joint-production process pipe column |
| 08/24/2005 | CN2720100Y High-pressure oil nipple cover |
| 08/24/2005 | CN1657737A Process for regulating profile / by gas-liquid method |
| 08/23/2005 | US6932158 To plug an abandoned well |
| 08/23/2005 | CA2415446C Wellhead hydraulic drive unit |
| 08/18/2005 | WO2005052310A3 Methods of using cement compositions having long-term slurry-state stability |
| 08/18/2005 | US20050179263 Power generation system |
| 08/18/2005 | US20050178586 Downhole blowout preventor |
| 08/18/2005 | US20050178562 Method and apparatus for isolating and testing zones during reverse circulation drilling |
| 08/18/2005 | US20050178561 Ribbed sealing element and method of use |
| 08/18/2005 | US20050178560 System for controlling a hydraulic actuator, and methods of using same |
| 08/18/2005 | US20050178559 Seal assembly for a safety valve |
| 08/18/2005 | US20050178558 Hydraulic impulse generator and frequency sweep mechanism for borehole applications |
| 08/18/2005 | US20050178557 Electric-hydraulic power unit |
| 08/18/2005 | US20050178554 Technique and Apparatus for Multiple Zone Perforating |
| 08/18/2005 | US20050178552 Method and apparatus for wellbore fluid treatment |
| 08/18/2005 | US20050178551 Method and apparatus for stimulation of multiple formation intervals |
| 08/18/2005 | US20050178549 Methods of reducing the permeabilities of horizontal well bore sections |
| 08/18/2005 | US20050178548 entraining or capturing sand, proppant or other solids in a wellbore, thereby aiding in their removal; fluids form a strong or viscous gel; relatively low density |
| 08/18/2005 | US20050178544 Placing an aqueous polymer in water conduits of production zone of a gas or oil reservoir to form a barrier to shut off or reduce unwanted production of water, through a well-bore tubing; injecting nitrogen or carbon dioxide into formation in to displace water |
| 08/18/2005 | US20050178540 Pack off system & apparatus |
| 08/17/2005 | EP1564367A1 Earth displacement drill |
| 08/17/2005 | EP1563161A1 Re-entry in multilateral wellbores |
| 08/17/2005 | EP1563160A2 Tensioning system for production tubing in a riser at a floating installation for hydrocarbon production. |
| 08/17/2005 | EP1395732B1 In-situ casting of well equipment |
| 08/17/2005 | CN2718216Y Impact pressing floating hoop |
| 08/17/2005 | CN2718215Y Large-path non-anchoring hydraulic packer |
| 08/17/2005 | CN2718214Y Confirmation seal section |
| 08/17/2005 | CN1654591A Deep plugging agent containing wood dust and gel |
| 08/16/2005 | CA2487155C Hydraulic underreamer and sections for use therein |
| 08/16/2005 | CA2371232C Method of manufacturing a wall thickness program into an elastomeric tubular component for incorporation into a packing device for use in a subterranean well |
| 08/16/2005 | CA2270162C Deformed multiple well template and process of use |
| 08/11/2005 | WO2005073504A1 Methods of cementing in subterranean formations using crack resistant cement compositions |
| 08/11/2005 | WO2005073502A2 Emulsion admixtures for improving cement elasticity |
| 08/11/2005 | WO2005073501A1 Hydrogel for use in downhole seal applications |
| 08/11/2005 | WO2005072430A2 Probe isloation seal pad |
| 08/11/2005 | WO2005049956A3 High pressure wireline top-entry packoff apparatus and method |
| 08/11/2005 | WO2005042911A3 System for drilling oil and gas wells using oversized drill string to achieve increased annular return velocities |
| 08/11/2005 | WO2005008016A3 Improve inflatable packer |
| 08/11/2005 | US20050173127 Stripper rubber adapter |
| 08/11/2005 | US20050173126 Disposable downhole tool with segmented compression element and method |
| 08/11/2005 | US20050173122 Well operations system |
| 08/11/2005 | US20050173117 Use of substantially hydrated cement particulates in cementing and subterranean applications |
| 08/11/2005 | US20050173110 Wellbore seal device |
| 08/11/2005 | CA2556250A1 Hydrogel for use in downhole seal applications |
| 08/11/2005 | CA2496649A1 Method and apparatus for isolating and testing zones during reverse circulation drilling |
| 08/10/2005 | CN2716498Y Two-stage portable self seal |
| 08/10/2005 | CN2716497Y Special rubber plug with overflow prevention function |
| 08/10/2005 | CN2716496Y Blowout control pipe |
| 08/09/2005 | US6926467 Method and device for replacing equipment on the seabed |
| 08/09/2005 | US6926283 Metal-to-metal sealing system |
| 08/09/2005 | US6926101 System and method for treating drilling mud in oil and gas well drilling applications |
| 08/09/2005 | US6926089 Downhole actuation system utilizing electroactive fluids |
| 08/09/2005 | US6926083 Cement heating tool for oil and gas well completion |
| 08/09/2005 | US6926081 Methods of discovering and correcting subterranean formation integrity problems during drilling |
| 08/04/2005 | WO2005071224A2 Measuring device and drilling device for deep drillings |
| 08/04/2005 | WO2005071221A1 Completion suspension valve system |
| 08/04/2005 | WO2005071220A1 Methods and compositions for the diversion of aqueous injection fluids in injection operations |
| 08/04/2005 | WO2005071218A1 Method for removing a tool from a well |
| 08/04/2005 | WO2004055318B1 Horizontal spool tree with improved porting |
| 08/04/2005 | US20050171248 Hydrogel for use in downhole seal applications |
| 08/04/2005 | US20050167118 Tubing annulus valve |
| 08/04/2005 | US20050167117 Underwater installation apparatus |
| 08/04/2005 | US20050167107 Methods of cementing in subterranean formations using crack resistant cement compositions |
| 08/04/2005 | US20050167106 Preparing a cement, placing the cement into the subterranean zone; allowing the cement to set therein, wherein the polar monomer and the elasticity enhancing monomer are present in the polymer emulsion in relative amounts effective to increase the elasticity of the set cement |
| 08/04/2005 | US20050167097 Patriot retrievable production packer |
| 08/04/2005 | US20050167095 Through bore wellhead hanger system |
| 08/04/2005 | US20050167094 System and method for sensing load on a downhole tool |
| 08/04/2005 | US20050166803 storage stable aqueous slurries comprising hydraulic cements, set retarders, plasticizers, glass or ceramic microspheres and strengthening agents, that is substantially free of a suspension |
| 08/04/2005 | CA2544711A1 Measuring device and drilling device for deep drillings |
| 08/03/2005 | EP1558831A2 Method and apparatus for varying the density of drilling fluids in deep water oil drilling applications |
| 08/03/2005 | CN2714795Y Multifunctional well plugger |
| 08/03/2005 | CN1648406A Ground injecting gas boosting oil production and liquid discharging gas producing device and method |
| 08/03/2005 | CN1648405A Injecting air boosting oil production and liquid discharging gas producing device and method |
| 08/03/2005 | CN1648404A Automatic boosting oil production and liquid discharge gas producing device and method for underwell gas |
| 08/02/2005 | US6924745 System and method for monitoring packer slippage |
| 08/02/2005 | US6923263 Well sealing method and apparatus |
| 08/02/2005 | US6923261 Apparatus and method for expanding a tubular |
| 08/02/2005 | US6923254 Washpipe apparatus |
| 08/02/2005 | CA2365554C Straddle packer systems |
| 07/28/2005 | WO2005068778A1 Method of consolidating an underground formation |
| 07/28/2005 | WO2005068775A1 Electrically operated actuation tool for subsea completion system components |
| 07/28/2005 | WO2005068774A1 Control system of an actuator for the actuation of submarine devices |
| 07/28/2005 | WO2005068770A1 Split locking ring for wellhead components |
| 07/28/2005 | WO2005068769A2 Inflate control system for inflatable straddle stimulation tool |
| 07/28/2005 | US20050164894 Water soluble relative permeability modifier comprising polymer with hydrophilic and polar hydrophobic monomers such as dimethylaminoethyl methacrylate or dimethylaminopropyl methacrylamide; and vinyl amine, vinyl alcohol, and/or alkyl acrylate; subterranean formations; enhanced oil recovery |
| 07/28/2005 | US20050161232 Annular Barrier Tool |
| 07/28/2005 | US20050161229 Expandable packer with anchoring feature |
| 07/28/2005 | US20050161224 Method for removing a tool from a well |
| 07/28/2005 | US20050161218 Probe isolation seal pad |
| 07/28/2005 | US20050161212 System and Method for Utilizing Nano-Scale Filler in Downhole Applications |
| 07/28/2005 | US20050160947 Displacement of gelling additive to well bore; crosslinking; forming barrier |
| 07/28/2005 | CA2552579A1 Settable fluids and methods for use in subterranean formations |
| 07/28/2005 | CA2548329A1 Method of consolidating an underground formation |
| 07/27/2005 | EP1556458A1 Self-destructing filter cake |
| 07/27/2005 | CN2713130Y Casing float collar and float shoe |