E21B 33 - Sealing or packing boreholes or wells

Patents for E21B 33 - Sealing or packing boreholes or wells (33,564)
11/2004
11/04/2004	US20040216884 Subsea choke control system
11/04/2004	US20040216879 Apparatus and method for disconnecting a tail pipe and maintaining fluid inside a workstring
11/04/2004	US20040216878 Method and apparatus for drilling and lining a wellbore
11/04/2004	US20040216877 Hydraulic tools for setting liner top packers and for cementing liners
11/04/2004	US20040216871 Composite inflatable downhole packer or bridge plug
11/04/2004	US20040216870 Drilled hole closure
11/04/2004	US20040216868 Self-set bridge plug
11/04/2004	CA2523088A1 Cement compositions with improved corrosion resistance and methods of cementing in subterranean formations
11/04/2004	CA2522540A1 Biodegradable dispersants for cement compositions and methods of cementing in subterranean formations
11/03/2004	EP1473436A2 Quick release blowout preventer bonnet
11/03/2004	EP1226333B1 A device in a subsea system for controlling a hydraulic actuator and a subsea system with a hydraulic actuator
11/03/2004	EP1071862B1 Rotating subsea diverter
11/03/2004	CN2653119Y Bottom structure of self filling self seal casing
11/03/2004	CN1543694A Conductor system
11/03/2004	CN1542255A Quick release blowout preventer bonnet
11/02/2004	US6810954 Production flow tree cap
11/02/2004	CA2664979A1 Method and apparatus for anchoring downhole tools in a wellbore
11/02/2004	CA2342657C Zero drill completion and production system
11/02/2004	CA2278404C Downhole packer with element extrusion-limiting device
11/02/2004	CA2270759C Removable bridge plug or packer
11/02/2004	CA2227858C Pressure-compensation system
11/02/2004	CA2203091C Integral pumping tee, blowout preventer and tubing rotator
11/02/2004	CA2137336C Dual string tubing rotator
10/2004
10/28/2004	WO2004092535A1 Pump plug
10/28/2004	WO2004092528A2 Apparatus for radially expanding and plastically deforming a tubular member
10/28/2004	WO2004092527A2 Apparatus for radially expanding and plastically deforming a tubular member
10/28/2004	WO2004092526A2 Downhole polymer plug and liner and methods employing same
10/28/2004	WO2004046589A3 Well stuffing box packing
10/28/2004	US20040211561 agglomeration of particles having curable coatings, by the pumping mixtures of the particles and liquid fracturing fluid into subterranean zones, then curing the coatings with heat; stabiliztion; well completion
10/28/2004	US20040211341 Cementing composition and application of such compositions for cementing oil wells or the like
10/28/2004	DE10297236T5 Absperrvorrichtung Shut-off
10/28/2004	CA2523779A1 Apparatus for radially expanding and plastically deforming a tubular member
10/28/2004	CA2523654A1 Apparatus for radially expanding and plastically deforming a tubular member
10/27/2004	EP1471208A2 Two-part connector for fluid carrying conduit
10/27/2004	CN2651437Y Rough-faced well cementing casing pipe
10/27/2004	CN2651436Y Sectional well cementing water-jetting mud devices
10/27/2004	CN2651435Y Small well oil extracting packer of oil-gas field
10/27/2004	CN2651434Y Small-well cracking packer
10/27/2004	CN2651433Y Small diameter inflatable packer for water injection well
10/27/2004	CN2651432Y Reusable packer
10/27/2004	CN2651431Y Large diameter packer
10/27/2004	CN2651430Y Hanging packer of layered sandproof and sand filtering pipe
10/27/2004	CN2651429Y Compensative hot producing packer
10/27/2004	CN2651428Y Security cap of polish rod sealer
10/27/2004	CN2651427Y Oil scraping sealer of rotary steel wire
10/27/2004	CN2651426Y Rack sealer
10/27/2004	CN2651425Y Well shut-in apparatus
10/27/2004	CN1539786A Low-density cement slurry
10/27/2004	CN1539782A Cement made from modified fly ash ash and manufacturing technqiue
10/26/2004	US6808024 Downhole seal assembly and method for use of same
10/26/2004	US6808021 Subsea intervention system
10/21/2004	WO2004090281A1 Methods and compositions for stabilizing unconsolidated subterranean formations
10/21/2004	WO2004090067A2 Drilling fluids with improved shale inhibition and methods of use in subterranean formations
10/21/2004	WO2004089608A2 Apparatus for radially expanding and plastically deforming a tubular member
10/21/2004	US20040207159 Washpipe apparatus
10/21/2004	US20040206548 Active controlled bottomhole pressure system & method
10/21/2004	US20040206513 Sand control for blanking plug
10/21/2004	US20040206508 Remedial system to flush contaminants from tubing string
10/21/2004	US20040206507 Manifold device and method of use for accessing a casing annulus of a well
10/21/2004	US20040206502 Biodegradable dispersants for cement compositions and methods of cementing in subterranean formations
10/21/2004	US20040206500 Cementing system and method for wellbores
10/21/2004	US20040206496 Testing drill packer
10/21/2004	CA2523500A1 Apparatus for radially expanding and plastically deforming a tubular member
10/20/2004	EP1469243A1 A swivel seal assembly, a method for increasing the life of a swivel seal and a swivel
10/20/2004	EP1468165A1 Riser control device
10/20/2004	EP1104517A4 Spring compression seal
10/20/2004	EP1015729B1 Connection of tubulars using a top drive
10/20/2004	CN2649772Y Split wellhead packing box
10/20/2004	CN2649771Y Gas-storage wellhead sealing device
10/20/2004	CN2649770Y 防盗井口装置 Theft wellhead
10/20/2004	CN2649769Y Protective hood for preventing sump oil and sewage pollution for oil field injection well measurement
10/20/2004	CN2649766Y Continuous casing-off no-perfusate casing pipe short joint
10/20/2004	CN1539066A Valve system and method
10/20/2004	CN1538943A Low density, fibre-reinforced cement composition
10/19/2004	US6805200 Horizontal spool tree wellhead system and method
10/19/2004	US6805199 Process and system for effective and accurate foam cement generation and placement
10/19/2004	CA2335677C Seal assembly for dual string coil tubing injection and method of use
10/19/2004	CA2137560C Method of creating a wellbore in an underground formation
10/16/2004	CA2463413A1 Testing drill packer
10/15/2004	CA2462798A1 Washpipe apparatus
10/14/2004	WO2004057715A3 A cable duct device in a swelling packer
10/14/2004	WO2004016899B1 Horizontal spool tree wellhead system and method
10/14/2004	US20040204323 boring well bores using mixtures of water, nanoparticles comprising polyvinyl pyrrolidone or rubber latex, and optionally salts, antifoams, biocides,corrosion inhibitors, dispersants, flocculants,scavengers, lubricants, scavengers, antiscaling or flow control agents
10/14/2004	US20040200614 Drill-through spool body sleeve assembly
10/13/2004	EP1466072A1 Inflatable packing element
10/13/2004	EP1114238B1 Lubricator
10/13/2004	CN2648056Y Bag type pluging leaking device
10/13/2004	CN2648055Y Slips packer
10/13/2004	CN2648054Y Integrated high temp. gas injection packer
10/13/2004	CN2648053Y Compression type sealer capable of flushing well
10/13/2004	CN2648052Y Hydraulic expanding type packer by crevice water intaking
10/13/2004	CN2648051Y Dual piston self-packing type packer capable of flushing well
10/13/2004	CN2648050Y Steam driving packer with forced removing packing
10/13/2004	CN2648049Y Pneumatic mud scraper for drilling well
10/13/2004	CN2648048Y Active packing rotating blow-out preventer and its controller
10/13/2004	CN2648047Y Casing head
10/13/2004	CN2648046Y Self fastening packing assembly
10/13/2004	CN2648042Y Special tool for changing packing of packing casing with dual wing
10/12/2004	US6802375 Method for plugging a well with a resin
10/12/2004	US6802373 Apparatus and method of detecting interfaces between well fluids

1 ... 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 ... 336