| 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) |
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| 05/23/2012 | CN202228061U Radial connection structure |
| 05/23/2012 | CN102472700A Apparatus and methods of determining fluid viscosity |
| 05/23/2012 | CN102465701A 多相流液体在线取样装置 Multiphase flow of liquid sampling device online |
| 05/23/2012 | CN102465700A 碳酸盐岩储层评估方法 Carbonate Reservoir Evaluation Method |
| 05/23/2012 | CN102465699A 碳酸盐岩储层预测方法 Carbonate reservoir prediction method |
| 05/23/2012 | CN102465698A 一种检测压裂和注水效果及其优势方向的装置和方法 An apparatus and method for fracturing and water effects and advantages of direction detection |
| 05/23/2012 | CN102174888B Method for processing formation data based on lithologic parameter of reservoir rock |
| 05/23/2012 | CN101936929B X-ray fluorescent element analysis device and mud logging unit thereof |
| 05/23/2012 | CN101413389B Graduation apparatus of magnetic nuclear resonance logger |
| 05/23/2012 | CN101403294B Stratum pressure detection method for interchange of PDC drilling bit and roller bit |
| 05/23/2012 | CN101403291B Preset production fluid section plane test method of mechanical mining horizontal well and special shaft mouth test apparatus |
| 05/23/2012 | CN101377130B Experiment well for testing multiple-component induction logging instrument |
| 05/23/2012 | CN101344001B Analytical method of X-ray fluorescence terrigenous clastic rock porosity in petroleum well drilling |
| 05/23/2012 | CN101324186B Device for measuring oil, gas, water three phase flow containing rate |
| 05/23/2012 | CN101240706B Annular space logging process of neutron gamma-ray logging instrument for well gadolinium-injecting labelling |
| 05/22/2012 | CA2599827C Method and apparatus for sampling high viscosity formation fluids |
| 05/17/2012 | US20120118040 System and method for sampling and analyzing downhole formation fluids |
| 05/16/2012 | EP2453106A1 Method for characterising the network of fractures of a fractured deposit and method for exploiting same |
| 05/16/2012 | CN202220601U Pressure adjustable hydraulic sampling drilling tool |
| 05/16/2012 | CN202220598U Three-dimensional electric analog experiment device of horizontal well exploitation |
| 05/16/2012 | CN102454403A Method and device for controlling flow velocity of high-pressure fluid |
| 05/16/2012 | CN102454402A Method for testing damages to reservoir caused by foam fracturing fluid |
| 05/16/2012 | CN102454401A Method for obtaining logging saturation of low porosity permeability reservoir |
| 05/16/2012 | CN102454400A Method for recognizing carbonate rock crevice cave-shaped reservoir |
| 05/16/2012 | CN102454399A Method for correcting time difference signals of well logging acoustic waves |
| 05/16/2012 | CN102454398A Gas layer and water layer recognition method for low-porosity and low-permeability reservoir |
| 05/16/2012 | CN101210546B Pump control for formation testing |
| 05/15/2012 | CA2721292A1 Core barrel assembly |
| 05/15/2012 | CA2598220C Use of the dynamic downhole measurements as lithology indicators |
| 05/15/2012 | CA2556427C Smooth draw-down for formation pressure testing |
| 05/10/2012 | WO2012061845A1 An apparatus, system and method for estimating a property. of a downhole fluid |
| 05/10/2012 | WO2012061844A1 A method and apparatus for estimating a downhole fluid property using a rare earth doped laser |
| 05/10/2012 | WO2012061843A1 A method and apparatus for estimating a downhole fluid property using a charged particle densitometer |
| 05/10/2012 | WO2012024492A3 Methods for borehole measurements of fracturing pressures |
| 05/10/2012 | WO2012024490A3 Methods for testing stimulation fluids |
| 05/10/2012 | US20120111635 Sample Encapsulation and Cache Device and Methods |
| 05/10/2012 | US20120111632 Formation tester pad |
| 05/10/2012 | US20120111559 Method for fracturing and analyzing an earthen formation surrounding a well bore |
| 05/10/2012 | US20120111104 Fiber optic cable for distributed acoustic sensing with increased acoustic sensitivity |
| 05/09/2012 | CN202215241U High-temperature high-pressure airtight sampling device for ultra-deep ultra-thick oil well |
| 05/09/2012 | CN202215227U Ultra low speed control system of hydraulic logging truck |
| 05/09/2012 | CN102444400A 核磁共振流体分析仪探头以及核磁共振流体分析仪 NMR fluid analyzer probe and NMR fluid analyzer |
| 05/09/2012 | CN101037859B Double-tubes single-action valve type coring earth borrowing device |
| 05/08/2012 | US8171990 In-situ formation strength testing with coring |
| 05/08/2012 | CA2674749C Borehole tester apparatus and methods using dual flow lines |
| 05/04/2012 | CA2724499A1 T-frac zone test tool and system |
| 05/03/2012 | WO2012058579A2 In-situ downhole x-ray core analysis system |
| 05/03/2012 | WO2012012098A8 Method for in situ fluid assessment and optimization during wellbore displacement operations |
| 05/02/2012 | EP2447467A1 Method for exploiting an oil deposit based on production data and seismic data history matching |
| 05/02/2012 | EP2446117A2 Sampling skid for subsea wells |
| 05/02/2012 | CN1908372B Security lock |
| 05/02/2012 | CN102434152A Method for calculating oil saturation of reservoir |
| 05/02/2012 | CN101403301B Method for acquiring container layer coarseness area distribution rule |
| 05/02/2012 | CN101358527B Butt-joint water detection and blocking equipment |
| 05/01/2012 | US8168121 Portable gas monitor |
| 05/01/2012 | US8167040 In situ combustion in gas over bitumen formations |
| 05/01/2012 | US8166812 Vibrating wire viscometers |
| 04/26/2012 | WO2012054865A2 System and method related to a sampling packer |
| 04/26/2012 | WO2012054038A1 Very high pressure sample capture and transportation vessel |
| 04/26/2012 | US20120097450 System and method for automatic detection and analysis of borehole breakouts from images and the automatic generation of alerts |
| 04/26/2012 | US20120096935 Downhole sensor tool with a sealed sensor outsert |
| 04/26/2012 | CA2814186A1 System and method related to a sampling packer |
| 04/26/2012 | CA2810611A1 Very high pressure sample capture and transportation vessel |
| 04/25/2012 | EP1948904B1 Methods and systems for determining reservoir properties of subterranean formations |
| 04/25/2012 | CN202202863U 具有防震抗撞击性能的探头套 Shockproof anti-impact performance of the probe sets |
| 04/25/2012 | CN202202859U 同位素示踪多排安全注入器 Isotope tracer injector multi-row Safety |
| 04/25/2012 | CN202202660U 一种单车锁具 One kind of bike locks |
| 04/25/2012 | CN202201666U 试井绞车液压排丝机构 Well test hydraulic winch wire agency row |
| 04/25/2012 | CN1912340B 分阶段预测聚合物驱油藏工程综合含水的方法 Phased predict polymer flooding method of comprehensive water reservoir engineering |
| 04/25/2012 | CN102425412A 一种外挂式聚焦探针 One kind of plug-focused probe |
| 04/25/2012 | CN102425402A 一种自定位式方位伽玛测量系统 A self-positioning azimuth gamma measurement system |
| 04/25/2012 | CN101392648B 一种对勘探钻孔内煤层气进行超前探测采样装置 Kind of exploration drilling carried out ahead of the probe within the CBM sampling device |
| 04/25/2012 | CN101182769B 储油层样本监管链 Reservoir sample chain of custody |
| 04/24/2012 | US8165817 Method for integrating reservoir charge modeling and downhole fluid analysis |
| 04/24/2012 | US8162076 System and method for reducing the borehole gap for downhole formation testing sensors |
| 04/24/2012 | US8162052 Formation tester with low flowline volume and method of use thereof |
| 04/19/2012 | WO2012050725A2 Sourceless downhole x-ray tool |
| 04/19/2012 | US20120090894 Locking device for a drilling device |
| 04/19/2012 | US20120090835 Downhole material-delivery system for subterranean wells |
| 04/18/2012 | EP2193255B1 Methods and systems for evaluating and treating previously-fractured subterranean formations |
| 04/18/2012 | CN202194657U 防冻取样装置 Antifreeze sampling device |
| 04/18/2012 | CN202194656U 高温井钢丝自动润滑降温器 Automatic lubrication of high temperature wells wire cooling device |
| 04/18/2012 | CN202194655U 一种用于微电阻率扫描成像测井仪上的八臂探测器 An eight-arm probe micro-resistivity scanning imaging logging tool on |
| 04/18/2012 | CN202194648U 板簧组件 Leaf spring assembly |
| 04/18/2012 | CN102418520A 锁水型松散地层取样钻具 Lock water-sampling drill loose formation |
| 04/18/2012 | CN102418519A 核磁共振测井仪刻度箱 NMR logging tool tick box |
| 04/18/2012 | CN102418518A 神经网络模拟交会图识别油层水淹级别的方法 Neural Network Simulation intersection flooded reservoir level pattern recognition methods |
| 04/18/2012 | CN102418516A 随钻近钻头定向参数测量装置 Near drill directional drilling parameter measurement device |
| 04/18/2012 | CN102418512A Flexible insulation short section |
| 04/18/2012 | CN102418511A 低渗透储层井下关井水井压降试井分析方法 Low permeability reservoir of underground water wells shut-drop method of Well Test Analysis |
| 04/18/2012 | CN101694157B 电极探头内置电子线路的双侧向测井仪 Electrode probe to the built-in electronic circuits bilateral logging tool |
| 04/18/2012 | CN101349151B 一种电磁波测井仪的三级刻度装置 An electromagnetic wave logging tool three scale devices |
| 04/18/2012 | CN101338665B 一种高频电磁波发射机 A high-frequency electromagnetic wave transmitter |
| 04/18/2012 | CN101285787B 三维油藏含水率测量的智能传感阵系统 Smart sensor array system to measure the moisture content of the three-dimensional reservoir |
| 04/18/2012 | CN101251007B 一种插装式电液集成装置 An integrated electro-hydraulic device mounted plug |
| 04/18/2012 | CN101113674B 一孔多点测量的钻孔应力计 A multi-point measurement hole drilling strain gage |
| 04/17/2012 | US8157011 System and method for performing a fracture operation on a subterranean formation |
| 04/17/2012 | US8156800 Methods and apparatus to evaluate subterranean formations |
| 04/17/2012 | CA2619976C Rotary coring device and method for acquiring a sidewall core from an earth formation |
| 04/17/2012 | CA2610663C Modular apparatus for production testing |