| Patents for E21B 34 - Valve arrangements for boreholes or wells (14,685) |
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| 03/05/2015 | WO2015031745A1 Autonomous flow control system and methodology |
| 03/05/2015 | WO2015030975A2 Systems and methods for restricting fluid flow in a wellbore with an autonomous sealing device and motion-arresting structures |
| 03/05/2015 | WO2015030775A1 Rotating control device with rotary latch |
| 03/05/2015 | US20150060143 Remotely controlled apparatus for downhole applications and methods of operation |
| 03/05/2015 | US20150060140 Eccentric Steering Device and Methods of Directional Drilling |
| 03/05/2015 | US20150060084 Autonomous flow control system and methodology |
| 03/05/2015 | US20150060078 Subsea drilling with casing |
| 03/05/2015 | US20150060076 Profile selective system for downhole tools |
| 03/04/2015 | EP2841689A1 Hydropower and geothermal energy system and methods |
| 03/04/2015 | EP2841685A1 Tubing retrievable injection valve assembly |
| 03/04/2015 | EP2841683A2 Oilfield apparatus and methods of use |
| 03/03/2015 | US8967279 Reinforced shear components and methods of using same |
| 03/03/2015 | US8967277 Variably configurable wellbore junction assembly |
| 03/03/2015 | US8967272 Annular pressure relief system |
| 03/03/2015 | US8967271 Subsea overpressure relief device |
| 03/03/2015 | US8967269 Tubular valving system and method |
| 03/03/2015 | US8967267 Fluid discrimination for use with a subterranean well |
| 03/03/2015 | US8967253 Pump control for formation testing |
| 02/26/2015 | WO2015026840A1 Production system including tubing hanger with valve |
| 02/26/2015 | WO2015026367A1 High-strength, low specific gravity, fracturing balls |
| 02/26/2015 | WO2015026354A1 Two line operation of two hydraulically controlled downhole devices |
| 02/26/2015 | WO2015026340A1 Wellbore steam injector |
| 02/26/2015 | WO2015026337A1 Cement head remote control and tracking |
| 02/26/2015 | WO2015026330A1 Sand control assemblies including flow rate regulators |
| 02/26/2015 | US20150053420 Flow control device for controlling flow based on fluid phase |
| 02/26/2015 | US20150053419 Passive in-flow control devices and methods for using same |
| 02/26/2015 | US20150053417 Autonomous Inflow Control Device Having a Surface Coating |
| 02/26/2015 | US20150053416 Wellbore annular safety valve and method |
| 02/26/2015 | US20150053415 Wellbore annular safety valve and method |
| 02/26/2015 | US20150053412 Production System Including Tubing Hanger with Valve |
| 02/25/2015 | EP2840228A2 Wellbore Annular Safety Valve and Method |
| 02/25/2015 | EP2840227A2 Wellbore annular safety valve and method |
| 02/25/2015 | EP2839110A1 Apparatus, systems and methods for a flow control device |
| 02/25/2015 | EP2839109A1 Apparatus, systems and methods for bypassing a flow control device |
| 02/24/2015 | US8960316 Interventionless adjustable flow control device using inflatables |
| 02/24/2015 | US8960310 Apparatus and method for connecting fluid lines |
| 02/24/2015 | US8960308 Methods and devices for isolating wellhead pressure |
| 02/24/2015 | US8960300 Remote subsea connection equipment |
| 02/24/2015 | US8960298 Deep set subsurface safety system |
| 02/24/2015 | US8960295 Fracture valve tools and related methods |
| 02/24/2015 | US8960292 High rate stimulation method for deep, large bore completions |
| 02/24/2015 | US8960283 Damper cartridge for launching plugs in cementing operations |
| 02/24/2015 | US8960270 Shunt tube flowpaths extending through swellable packers |
| 02/24/2015 | CA2808080C Variable flow restrictor for use in a subterranean well |
| 02/24/2015 | CA2804400C Dual-flow valve and swivel |
| 02/24/2015 | CA2681389C Bi-directional flapper valve |
| 02/19/2015 | WO2015023393A1 System for gas hydrate production and method thereof |
| 02/19/2015 | WO2015023294A1 Flow control device for controlling flow based on fluid phase |
| 02/19/2015 | WO2015023249A1 Multi-zone completion systems and methods |
| 02/19/2015 | US20150047851 Compliant Dart-Style Reverse-Flow Check Valve |
| 02/19/2015 | US20150047838 Technique and apparatus to form a downhole fluid barrier |
| 02/19/2015 | US20150047834 Non-stop driller manifold and methods |
| 02/19/2015 | US20150047828 Apparatus and method for stimulating subterranean formations |
| 02/18/2015 | EP2836674A1 Adjustable flow control device |
| 02/18/2015 | EP2836673A1 Apparatus and method to remotely control fluid flow in tubular strings and wellbore annulus |
| 02/18/2015 | EP2836672A2 Downhole apparatus |
| 02/18/2015 | EP2836667A2 Apparatus and method to remotely control fluid flow in tubular strings and wellbore annulus |
| 02/17/2015 | US8957538 Apparatus for downhole power generation |
| 02/17/2015 | US8955847 Sealing arrangement for a down hole valve |
| 02/17/2015 | US8955604 Receptacle sub |
| 02/17/2015 | US8955603 System and method for positioning a bottom hole assembly in a horizontal well |
| 02/17/2015 | US8955601 Flow management system and method |
| 02/17/2015 | US8955600 Multi-barrier system and method |
| 02/17/2015 | US8955543 Large bore auto-fill float equipment |
| 02/17/2015 | CA2838094C Multi-stage well isolation and fracturing |
| 02/12/2015 | WO2015020849A2 Hydraulic cycle opening sleeve |
| 02/12/2015 | WO2015020652A2 Casing joint assembly for producing an annulus gas cap |
| 02/12/2015 | US20150041148 Hydraulic Cycle Opening Sleeve |
| 02/12/2015 | US20150041147 Oil well safety valve apparatus and method |
| 02/12/2015 | US20150041146 Magnetic Valve Assembly |
| 02/12/2015 | US20150041143 Apparatus For Controlling Injection Pressure In Offshore Enhanced Oil Recovery |
| 02/12/2015 | US20150041141 Mechanically actuated device positioned below mechanically actuated release assembly utilizing j- slot device |
| 02/12/2015 | US20150041140 Casing Joint Assembly for Producing an Annulus Gas Cap |
| 02/12/2015 | US20150041133 Methods of Operating Well Bore Stimulation Valves |
| 02/11/2015 | EP2835493A1 Electronically-actuated cementing port collar |
| 02/11/2015 | EP2834457A1 Well tools selectively responsive to magnetic patterns |
| 02/11/2015 | EP2834450A2 Wellbore completion |
| 02/11/2015 | EP2834445A2 Actuator for dual drill string valve and drill string valve configurations therefor |
| 02/11/2015 | CN204152490U 一种万能型磨轮式流量调节装置 A versatile wheel type flow regulating device |
| 02/11/2015 | CN204152481U 水下隔离阀门支撑的笼式结构 Isolation valve underwater cage support structure |
| 02/11/2015 | CN204152480U 稠油井气举阀 Heavy oil gas lift valve |
| 02/11/2015 | CN104343417A 一种六开度开关滑套 One kind of six open-degree switch sleeve |
| 02/11/2015 | CN104343416A 深水气井测试系统及测试方法 Deepwater wells test system and test methods |
| 02/10/2015 | US8950503 Control system |
| 02/10/2015 | US8950502 Series configured variable flow restrictors for use in a subterranean well |
| 02/10/2015 | US8950499 Pipe-in-pipe apparatus, and methods and systems |
| 02/10/2015 | US8950496 Counter device for selectively catching plugs |
| 02/10/2015 | US8950485 Drilling/frac adapter and method of use |
| 02/10/2015 | CA2772277C Cluster opening sleeves for wellbore |
| 02/05/2015 | WO2015017698A1 Clutch apparatus and method for resisting torque |
| 02/05/2015 | WO2015017696A1 Method and apparatus for restricting fluid flow in a downhole tool |
| 02/05/2015 | WO2015017527A2 Methods for the production of long length clonal sequence verified nucleic acid constructs |
| 02/05/2015 | WO2015017526A1 Fluidic modulators and along string systems |
| 02/05/2015 | WO2015017522A1 Moveable element to create pressure signals in a fluidic modulator |
| 02/05/2015 | WO2015017512A1 Fluidic modulators |
| 02/05/2015 | WO2015017337A1 Valve assembly |
| 02/05/2015 | WO2015017021A1 A wellbore isolation device containing a substance that undergoes a phase transition |
| 02/05/2015 | US20150034386 Fluidic Modulators and Along String Systems |
| 02/05/2015 | US20150034385 Moveable Element to Create Pressure Signals in A Fluidic Modulator |
| 02/05/2015 | US20150034384 Method of and apparatus for drilling a subterranean wellbore |