| Patents for E21B 49 - Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells (11,875) |
|---|
| 02/13/2013 | CN102926747A Low-shear sampling device |
| 02/13/2013 | CN102926746A System and method for monitoring and logging formation fluid oil gas in real time |
| 02/13/2013 | CN102926745A Anti-sticking short segment for cable formation tests |
| 02/13/2013 | CN102926742A 填砂管 Filling sand tube |
| 02/13/2013 | CN102926740A Hydraulic sidewall contact device for through casing resistivity logger |
| 02/13/2013 | CN102926739A Double-U-shaped-pipe type high-temperature high-pressure fluid density sensor |
| 02/13/2013 | CN102162359B High-precision pumping device used for formation tester |
| 02/13/2013 | CN101956541B Underground switching well used for measuring, directly reading and storing coalbed methane |
| 02/13/2013 | CN101892836B Method for preparing large-scale porous percolating medium |
| 02/13/2013 | CN101864947B Method and device for simulating formation temperature in multi-element thermal fluid injected oil extraction three-dimensional simulation test |
| 02/13/2013 | CN101839131B Method and structure for optimizing axial fluid line in cylindrical matrix |
| 02/13/2013 | CN101644154B Formation evaluation tool (FET) |
| 02/12/2013 | US8371161 Apparatus and method for formation testing |
| 02/12/2013 | CA2665328C Methods and systems for well stimulation using multiple angled fracturing |
| 02/12/2013 | CA2639621C Method and apparatus for logging foam cement in cased boreholes |
| 02/07/2013 | WO2013019557A2 Systems and program product for performing a fully automated workflow for well performance model creation and calibration |
| 02/07/2013 | WO2013019554A2 Viscometer for downhole use |
| 02/07/2013 | WO2013019523A2 Method and system for sampling multi-phase fluid at a production wellsite |
| 02/07/2013 | WO2013019522A2 System and method for sampling multiphase fluid at a production wellsite |
| 02/07/2013 | WO2012152916A3 System and method for generating fluid compensated downhole parameters |
| 02/07/2013 | US20130031969 Simulating Downhole Flow Through a Perforation |
| 02/07/2013 | CA2843733A1 Systems and program product for performing a fully automated workflow for well performance model creation and calibration |
| 02/07/2013 | CA2843505A1 A downhole device for data acquisition during hydraulic fracturing operation and method thereof |
| 02/06/2013 | EP2554779A2 Pulsed-electric drilling systems and methods with formation evaluation and/or bit position tracking |
| 02/06/2013 | EP2553435A1 A system for classification of materials using laser induced breakdown spectroscopy |
| 02/06/2013 | CN202718674U Sampling tube device capable of collecting underground fluid on random layer |
| 02/06/2013 | CN202718673U Visual physical simulation device for bottom-water reservoirs |
| 02/06/2013 | CN102913242A Method of determining formation water resistivity of water flooded layer |
| 02/06/2013 | CN102913241A Downhole stratified fluid sampler |
| 02/06/2013 | CN102913240A Reservoir fluid recognizing method |
| 02/06/2013 | CN102913239A Array sound-wave logger |
| 02/06/2013 | CN102913238A Method for dissolving initial oil saturation degree of oil-water layer |
| 02/06/2013 | CN102913229A Sealing joint body |
| 02/06/2013 | CN102913228A Production profile logging instrument for screw pump well |
| 02/06/2013 | CN102011581B Simulated evaluation device for well-drilling plugging of stress sensitivity stratum |
| 02/06/2013 | CN101967971B Ternary fluid non-separation on-line measurement instrument |
| 02/05/2013 | US8365822 Interleaved arm system for logging a wellbore and method for using same |
| 01/31/2013 | WO2013016669A2 Active equivalent circulating density control with real-time data connection |
| 01/31/2013 | WO2013016095A2 Apparatus and method for retrieval of downhole sample |
| 01/31/2013 | WO2012158522A3 Separation system to separate phases of downhole fluids for individual analysis |
| 01/31/2013 | WO2012149375A3 Spring force nodal mounting method for resonator sensor |
| 01/31/2013 | WO2012042397A3 Methods for reservoir evaluation employing non-equilibrium compositional gradients |
| 01/31/2013 | US20130025943 Apparatus and method for retrieval of downhole sample |
| 01/31/2013 | US20130025855 Formation Sampling |
| 01/31/2013 | US20130025854 Method and system for sampling multi-phase fluid at a production wellsite |
| 01/31/2013 | CA2842791A1 Automatic optimizing methods for reservoir testing |
| 01/30/2013 | EP2551445A2 Automatic optimizing methods for reservoir testing |
| 01/30/2013 | EP2550429A2 Well fluid sampling system for use in heavy oil environments |
| 01/30/2013 | CN202707048U Oil well continuous sampling and separating device |
| 01/30/2013 | CN202707047U Natural gamma and well deviation position combination logging instrument |
| 01/30/2013 | CN202707046U Analog measurement test device of circumferential borehole electro-acoustic imaging detector |
| 01/30/2013 | CN202707036U Drilling tool passing storage type logging instrument releaser |
| 01/30/2013 | CN102906370A Spectroscopic nanosensor logging systems and methods |
| 01/30/2013 | CN102900434A Method for distinguishing gas reservoir oil-bearing feature through hydrocarbon ratio curve |
| 01/30/2013 | CN102900433A Method for discriminating reservoir fluid by establishing gas logging chart on basis of discriminant analysis |
| 01/30/2013 | CN102900432A Method for reservoir assessment by calculating logging porosity while drilling by utilizing data during micro drilling |
| 01/30/2013 | CN102900431A Plugging simulation experiment device for horizontal well |
| 01/30/2013 | CN102900423A Gel-based solid physical simulator for electrical logging detector and forming method of gel-based solid physical simulator |
| 01/30/2013 | CN102900408A Experimental evaluation method of gas-injection displaceable oil of fracture-cave type carbonate reservoir |
| 01/30/2013 | CN102071926B Method and device for measuring full-hole annular pressure and method and device for controlling same |
| 01/30/2013 | CN101864954B Multi-sampling device for formation testing |
| 01/29/2013 | US8360148 Methods, apparatus and articles of manufacture to measure gas reservoir formation pressures |
| 01/29/2013 | US8360145 Selective placement of conformance treatments in multi-zone well completions |
| 01/29/2013 | US8360144 Method for geophysical and stratigraphic interpretation using waveform anomalies |
| 01/29/2013 | US8360143 Method of determining end member concentrations |
| 01/29/2013 | CA2658870C Performing in-situ, downhole analysis of properties of an unknown formation fluid based on in-situ analysis of like properties of a known fluid |
| 01/29/2013 | CA2469363C Methods, apparatus, and systems for obtaining formation information utilizing sensors attached to a casing in a wellbore |
| 01/28/2013 | CA2783967A1 Neutron porosity measurement devices with semiconductor neutron detection cells and methods |
| 01/24/2013 | WO2013012967A1 Using low frequency for detecting formation structures filled with magnetic fluid |
| 01/24/2013 | WO2013012906A2 Viscosity measurement in a fluid analyzer sampling tool |
| 01/24/2013 | WO2013012629A1 Apparatus and method for determining formation density from nuclear density measurements made using sensors at more than one location |
| 01/24/2013 | WO2012166864A3 Systems and methods for limiting winch overrun |
| 01/24/2013 | WO2012166289A3 Sand detection using magnetic resonance flow meter |
| 01/24/2013 | WO2012142259A3 Self-propelled simultaneous platform |
| 01/24/2013 | US20130020134 Fixed Cutter Drill Bit With Core Fragmentation Feature |
| 01/24/2013 | US20130020077 Apparatus and method for improved fluid sampling |
| 01/24/2013 | US20130019673 Viscosity measurement in a fluid analyzer sampling tool |
| 01/24/2013 | US20130019671 Optimization of sample cleanup during formation testing |
| 01/23/2013 | EP2549057A2 Apparatus and method for improved fluid sampling |
| 01/23/2013 | EP2547865A2 Formation testing |
| 01/23/2013 | EP2547864A2 Automatic stage design of hydraulic fracture treatments using fracture height and in-situ stress |
| 01/23/2013 | CN202690042U Pressure balance bunker device of hydraulic pushing instrument |
| 01/23/2013 | CN202690041U Device used for location and protection of probe of rock stratum detection recording meter |
| 01/23/2013 | CN202690040U Double-position rotating system for combustion arm |
| 01/23/2013 | CN202690039U Column type combustion beam guardrail |
| 01/23/2013 | CN202690031U Shell for measuring-while-drilling instrument |
| 01/23/2013 | CN202690030U Seal hooping device for leather bag |
| 01/23/2013 | CN102889079A Acoustic logging transmitting transducer driving system |
| 01/23/2013 | CN101963057B Simulation experimental device for natural hydrate geological stratification |
| 01/23/2013 | CN101581215B Collector capable of automatically controlling gas separation for measuring production profile of oil well |
| 01/23/2013 | CN101251010B Single phase fluid sampling apparatus and method for use of same |
| 01/22/2013 | US8357639 Nanoemulsions |
| 01/17/2013 | WO2013009895A1 Encapsulated tracers and chemicals for reservoir interrogation and manipulation |
| 01/17/2013 | WO2013009801A2 Estimating a wellbore parameter |
| 01/17/2013 | WO2013009567A2 An apparatus, system and method for injecting a fluid into a formation downhole |
| 01/17/2013 | WO2013009501A2 Cnt fiber based impedance spectroscopy for characterizing downhole fluids |
| 01/17/2013 | WO2012161918A9 A regulation-compliant holding device for storing or transporting a non-compliant container |
| 01/17/2013 | WO2011132095A3 Methods for characterization of petroleum reservoirs employing property gradient analysis of reservoir fluids |
| 01/17/2013 | US20130014994 Systems and methods of a sample bottle assembly |
| 01/17/2013 | US20130014943 Microplasma for downhole compositional analysis |