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)
11/2010
11/23/2010US7838468 Acid ammonium salts of an imide of polymaleic anhydride; hydraulic fracturing fluids used in enhanced oil recovery; subterranean formations
11/23/2010US7836962 Methods and apparatus for a downhole tool
11/23/2010US7836961 Integrated hydraulic setting and hydrostatic setting mechanism
11/23/2010US7836960 Method for running a continuous communication line through a packer
11/23/2010US7836956 Positional control of downhole actuators
11/23/2010US7836954 Cement compositions comprising stevia retarders
11/23/2010US7836953 Cementing a cased well penetrating a subterranean formation using an extender of finely ground, bituminous sponge coal prepared from coal and/or liquid hydrocarbons; injection of of the cement into the annulus between the casing and the formation; high heat resistance
11/23/2010CA2613757C Wellbore plug adapter kit
11/23/2010CA2601283C System and method for real-time management of formation fluid sampling with a guarded probe
11/23/2010CA2497113C Remote actuator for ball injector
11/23/2010CA2466685C Liner hanger with sliding sleeve valve
11/20/2010CA2704575A1 Wellhead hydrocarbon upgrading using microwaves
11/18/2010WO2010132345A2 Fracturing with telescoping members and sealing the annular space
11/18/2010WO2010131119A2 System and method for enhancing packer operation and longevity
11/18/2010WO2010130048A1 Locking core plug
11/18/2010WO2010110952A3 Dc powered subsea inverter
11/18/2010WO2010105173A3 Pressure control device for wireline cables
11/18/2010WO2010067060A3 Hydraulic coupling
11/18/2010WO2009076614A9 Function spool
11/18/2010US20100288514 Well packing
11/18/2010US20100288513 Non-Metallic Mandrel and Element System
11/18/2010US20100288512 Rolling bridge through tubing bridge plug
11/18/2010US20100288511 System and Method for Enhancing Packer Operation and Longevity
11/18/2010US20100288508 Non-Metallic Mandrel and Element System
11/18/2010US20100288504 Subsea Connection Apparatus for a Surface Blowout Preventer Stack
11/18/2010US20100288496 Radial ball injecting apparatus for wellbore operations
11/18/2010US20100288491 Subterranean Tubular Cutter with Depth of Cut Feature
11/18/2010US20100288488 Non-Metallic Mandrel and Element System
11/18/2010US20100288487 Non-Metallic Mandrel and Element System
11/18/2010US20100288486 Swellable Downhole Packer
11/18/2010US20100288483 Wellhead Completion Assembly Capable of Versatile Arrangements
11/18/2010DE202010009282U1 Mehrkammerdruckstoppadapter zur Schließung eines unter Druck stehenden Rohres Multi-chamber pressure stop adapter to the closure of a pressurized tube
11/18/2010CA2762035A1 System and method for enhancing packer operation and longevity
11/18/2010CA2761584A1 Subsea winch
11/18/2010CA2761583A1 Fracturing with telescoping members and sealing the annular space
11/18/2010CA2758433A1 Locking core plug
11/17/2010EP2251525A1 Methods and devices for treating multiple-interval well bores
11/17/2010EP2251524A1 Wellbore treatment
11/17/2010EP2250862A2 Arrangement system
11/17/2010EP2250339A2 Donhole actuator tool
11/17/2010CN201635736U Well mouth sampling valve antitheft device
11/17/2010CN201635703U Sleeve pipe pressure test plugging device
11/17/2010CN201635702U Packer
11/17/2010CN201635701U Choke
11/17/2010CN201635700U Broken rod sealer
11/17/2010CN201635699U Pressure-assistance floating and sealing blowout preventer of interference type well
11/17/2010CN201635698U Automatic sucker rod breaking blowout preventer
11/17/2010CN201635697U Fractured and acidized oil extraction wellhead device
11/17/2010CN201635696U High-pressure sealing password theft-proof well-sealing lock
11/17/2010CN201635695U Polish rod sealer
11/17/2010CN201635694U Well mouth gas antitheft device
11/17/2010CN201635693U Water detection and release drilling diversion gate valve type orifice device
11/17/2010CN201635692U Decentralized wellhead device
11/17/2010CN201635691U Underground scratch resistant safety device
11/17/2010CN201635690U Wellhead area oil guiding collector
11/17/2010CN101886531A Drilling and sealing method for gas drainage from coal seam
11/17/2010CN101886530A Deepwater blowout preventer set electric control system based on FPGAs (Field Programmable Gate Arrays)
11/16/2010US7832706 RAM BOP position sensor
11/16/2010US7832491 Well packing
11/16/2010US7832490 Compositions containing shape-conforming materials and nanoparticles to enhance elastic modulus
11/16/2010US7832489 Methods and systems for completing a well with fluid tight lower completion
11/16/2010US7832488 Anchoring system and method
11/16/2010US7832479 Polymeric extenders for flexible cement
11/16/2010US7832473 Method for controlling the flow of fluid between a downhole formation and a base pipe
11/16/2010US7832472 Hydraulic open hole packer
11/16/2010CA2620050C Packer variable volume excluder and sampling method therefor
11/16/2010CA2508434C Expandable liner hanger system and method
11/13/2010CA2665921A1 Method and apparatus for sealing abandoned oil and gas wells
11/11/2010WO2010129896A1 Multi-piece stacked sealing system and method of using same
11/11/2010WO2010129678A2 Selectively movable seat arrangement and method
11/11/2010WO2010129478A1 Subsea control system
11/11/2010WO2010129396A2 Universal frac sleeve
11/11/2010WO2010129266A2 Nitinol through tubing bridge plug
11/11/2010WO2010129178A2 System and method of providing high pressure fluid injection with metering using low pressure supply lines
11/11/2010WO2010127801A2 Activation-device launcher for a cementing head
11/11/2010WO2010127457A1 Sliding sleeve sub and method and apparatus for wellbore fluid treatment
11/11/2010WO2010098930A3 Sealing array for high temperature applications
11/11/2010US20100282478 Activation-Device Launcher For A Cementing Head
11/11/2010US20100282469 Fracturing with Telescoping Members and Sealing the Annular Space
11/11/2010US20100282466 Acid-Soluble Cement Compositions Comprising Cement Kiln Dust and/or a Natural Pozzolan and Methods of Use
11/11/2010US20100282465 Methods of consolidating particulates using a hardenable resin and an orgaosilane coupling agent
11/11/2010US20100282463 Pump In Reverse Outliner Drilling System
11/11/2010DE202010005672U1 Sonde zum Verschließen eines Erdölbohrloches Probe for closing an oil borehole
11/11/2010CA2761072A1 Subsea overload release system and method
11/11/2010CA2760107A1 Sliding sleeve sub and method and apparatus for wellbore fluid treatment
11/11/2010CA2697089A1 Production tubing drain valve
11/10/2010EP2248991A2 Remotely operated drill pipe valve
11/10/2010EP2248990A2 Wellhead system having a tubular hanger securable to wellhead and method of operation
11/10/2010EP2247819A1 Method and apparatus for in situ testing of gas flow controllers
11/10/2010EP2247818A1 Downhole seal
11/10/2010EP2247816A1 A method and system for installing geothermal heat exchangers, energy piles, concrete piles, micropiles, and anchors using a sonic drill and a removable or retrievable drill bit
11/10/2010CN201627567U Vertical choke-kill manifold for oceanic use
11/10/2010CN201627564U Non-drill automatic hole-closing cementing tool
11/10/2010CN201627563U Hot melt steam injection packer
11/10/2010CN201627562U Switch plugging blowout relief device in wellhead
11/10/2010CN201627561U Two-in-one ocean wellhead device with safety valve
11/10/2010CN201627560U Device for fracturing wellhead
11/10/2010CN201627559U Integral electric pump wellhead device with safety valve
11/10/2010CN201627558U Valve for mounting oil-extraction well head flange
11/10/2010CN101881149A Heat injection drilling and sealing method of heating coalbed
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