Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 33 - Sealing or packing boreholes or wells
Patents for E21B 33 - Sealing or packing boreholes or wells (33,564)
04/2014
04/03/2014US20140090854 Rotating and reciprocating swivel apparatus and method
04/03/2014US20140090845 Defoaming Compositions
04/03/2014US20140090844 Swellable elastomer and its use in acidizing or matrix stimulation
04/03/2014US20140090843 Use of Synthetic Smectite in Set-Delayed Cement Compositions
04/03/2014US20140090842 Cement Compositions Comprising Deagglomerated Inorganic Nanotubes and Associated Methods
04/03/2014US20140090840 Gravel pack carrier fluids
04/03/2014US20140090831 Non-metallic Slips having Inserts Oriented Normal to Cone Face
04/03/2014US20140090830 Lubricator with interchangeable ports
04/02/2014EP2713004A2 Inserts for non-metallic slips oriented normal to cone face
04/02/2014EP2712385A1 Reducing trips in well operations
04/02/2014CN203516049U Blowout preventer for pump tripping of oil well pump
04/02/2014CN203515648U Double-hole pipe special for hole packer
04/02/2014CN203515579U Oil filed oil gauging and sampling joint device
04/02/2014CN203515542U Downhole hydraulic control type fully-opened sliding sleeve sand blasting and packing integrated staged fracturing device
04/02/2014CN203515538U Double-hanger gas well fracture well mouth
04/02/2014CN203515530U Bridge-type packer water distributor
04/02/2014CN203515520U Seat sealing and gun throwing connector device
04/02/2014CN203515464U Well cementation device
04/02/2014CN203515463U Circulation type drilling gel injection device
04/02/2014CN203515462U Composite bridge plug and central pipe thereof
04/02/2014CN203515461U Safe and drill-free blind plate cementing tool
04/02/2014CN203515460U Instant adhering type grouting bag pocket type hole sealing device
04/02/2014CN203515459U Double-level well cementation dead cavity unbinding recyclable easy-drilling device
04/02/2014CN203515458U Double-hole pipe slurry filling hole sealing device
04/02/2014CN203515457U Pressure-bearing testing device of multi-position pressure-bearing crack temporary plugging agents
04/02/2014CN203515456U Fixation type grouting hole sealing and air leakage processing integrated device
04/02/2014CN203515455U Perforation fracturing packer device
04/02/2014CN203515454U Quick hole packer
04/02/2014CN203515453U Reliable packer
04/02/2014CN203515452U Fixture block type anti-setting packer
04/02/2014CN203515451U Claw sleeve type setting-preventing packer
04/02/2014CN203515450U Blocking device of packer
04/02/2014CN203515449U Expansion type rubber sleeve packer
04/02/2014CN203515448U Stratification testing packer
04/02/2014CN203515447U Water flooding and oil extraction packer
04/02/2014CN203515446U Claw sleeve type hydraulic packer
04/02/2014CN203515445U Hydraulic control hollow piston rod enabling high-pressure natural gas well mouth gate valve to be replaced without well control
04/02/2014CN203515444U Water stopping device for drilling
04/02/2014CN203515443U Oil production packer
04/02/2014CN203515442U Hole sealing device
04/02/2014CN203515441U Special combined-type blowout preventer
04/02/2014CN203515440U Construction hole sealing device for drill hole
04/02/2014CN203515439U Internal blowout preventer
04/02/2014CN203515438U Ground blowout preventer control device of welding and flange connecting structure
04/02/2014CN203515437U Self-sealed type well opening casing pipe hanging device
04/02/2014CN203515436U Energy-saving wellhead sealing device
04/02/2014CN203515435U Pumping well packing box hanging device
04/02/2014CN203515434U Sucker rod suspension device in process of oil well blowout
04/02/2014CN203515433U High-temperature pressure pulling test continuous oil pipe suspension sealing device
04/02/2014CN203515432U Spiral packing box hanger
04/02/2014CN203515342U Completion pipe string for multi-cluster perforation fracture
04/02/2014CN203514333U Basement soleplate precipitation well mouth blocking sleeve
04/02/2014CN203514332U Casing for blocking dewatering tube well of post-cast strip
04/02/2014CN103703211A Systems and methods for gravel packing wells
04/02/2014CN103703210A Selectively degradable passage restriction
04/02/2014CN103696731A Quick cut-off device for wellhead production flow passages
04/02/2014CN103696730A Sludge leakage stopping method in drilling construction
04/02/2014CN103696729A Method for sealing drilled hole for mine gas drainage
04/02/2014CN103696728A Double-stage self-sealing thermal recovery packer
04/02/2014CN103696727A Automatic-expanding packer
04/02/2014CN103696726A Gas drainage hole-sealing device
04/02/2014CN103696725A Drilling water stop
04/02/2014CN103696724A Emergency automatic control device of blowout preventer
04/02/2014CN103696723A Wellhead protector for intermittent-bailing pumping unit
04/02/2014CN103696715A Anchoring structure and underground blocking device
04/02/2014CN102926700B Grouting bag type hole packer with multi-section seal
04/02/2014CN102777123B High-expansibility naked eye suspension adhering system and method
04/02/2014CN102561988B Small-diameter water-swelling setting plug
04/02/2014CN102392616B Microcomputer controlled packer
04/02/2014CN102352734B Ground blowout preventer control device with function of preventing lifting breakage of drill column
04/02/2014CN102213081B Spindle type metal sealing and metal framework type rubber sealing sleeve hanger
04/02/2014CN102200000B Blowout preventing box of continuous oil pipe and drill rod
04/02/2014CN102182418B Joint device for underwater dry-type Christmas tree sealed cabin
04/02/2014CN102171410B Dual tubing hanger
04/02/2014CN102116137B Blanking plug for eccentric water distributor
04/01/2014US8685903 Lost circulation compositions and associated methods
04/01/2014US8685901 Wellbore servicing compositions and methods of using same
04/01/2014US8684100 Electrically engaged, hydraulically set downhole devices
04/01/2014US8684092 System and method for providing additional blowout preventer control redundancy
04/01/2014US8684091 Wellbore servicing compositions and methods of making and using same
04/01/2014US8684087 Downhole flow control using perforator and membrane
04/01/2014US8684082 Radiation-induced thickening for set-on-command sealant compositions and methods of use
04/01/2014US8684081 Zero-leakoff gel
03/2014
03/28/2014CA2829279A1 Lubricator with interchangeable ports
03/27/2014WO2014047594A1 An improved subsea connector system
03/27/2014WO2014047403A1 Packer plug retrieval tool and related methods
03/27/2014WO2014047237A1 In situ polymerization for completions sealing or repair
03/27/2014WO2014047132A1 Use of aqueous alkali aluminosilicate for profile modification, water control and stabilization
03/27/2014WO2014047088A1 Methods for plug cementing
03/27/2014WO2014046937A1 Methods of treating a subterranean formation with stress-activated resins
03/27/2014WO2014046676A1 Swellable packer having reinforcement plate
03/27/2014WO2014046651A1 Subsea dummy run elimination assembly and related method
03/27/2014WO2014043807A1 Wellbore tool with indexing mechanism and method
03/27/2014WO2014043806A1 Wellbore tool with indexing mechanism and method
03/27/2014WO2013038397A3 Methods and equipment to improve reliability of pinpoint stimulation operations
03/27/2014US20140087974 Particulate Weighting Agents Comprising Removable Coatings and Methods of Using the Same
03/27/2014US20140084547 High pressure seal back-up
03/27/2014US20140084192 Linear clutch for blowout preventer
03/27/2014US20140083717 High-molecular-weight polyglycolides for hydrocarbon recovery
03/27/2014US20140083701 Cement Set Activators for Set-Delayed Cement Compositions and Associated Methods
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