| 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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| 01/11/2012 | CN102312671A Method capable of fast explaining and evaluating reservoir fluid properties |
| 01/11/2012 | CN102312670A Method and system for correcting sound wave emitting voltage in sound wave amplitude logging |
| 01/11/2012 | CN102312669A Method (Ip) for evaluating properties of reservoir based on gas survey logging data |
| 01/11/2012 | CN102312668A Method (IT) for evaluating properties of reservoir based on gas survey logging data |
| 01/11/2012 | CN102312665A Stratum perforation test device |
| 01/11/2012 | CN102134994B Stratum data processing method based on electrical resistivity of bedrock oil deposit oil water layer |
| 01/11/2012 | CN101694163B Determination method of deep tunnel roof support forms and support depth |
| 01/11/2012 | CN101382070B Electromagnetical method for dynamically monitoring oil reservoir injection-production |
| 01/11/2012 | CN101315024B Jackrod one-way pump injection type sealing/sealing releasing device for hole-inside base |
| 01/11/2012 | CN101189409B Methods and apparatus of downhole fluid analysis |
| 01/10/2012 | US8091635 Apparatus and methods to remove impurities at a sensor in a downhole tool |
| 01/10/2012 | US8091634 Single packer structure with sensors |
| 01/05/2012 | WO2012003027A1 Method and system for modeling fractures in ductile rock |
| 01/05/2012 | WO2012001090A1 Test cell for assessing a well fluid |
| 01/05/2012 | WO2012000077A1 Remotely operable underwater drilling system and drilling method |
| 01/05/2012 | WO2011140166A3 Well fluid sampling system for use in heavy oil environments |
| 01/05/2012 | US20120000279 Fluid Expansion in Mud Gas Logging |
| 01/05/2012 | CA2802872A1 Remotely operable underwater drilling system and drilling method |
| 01/04/2012 | CN202100255U Multistage cylinder barrel cutting and simulating device with sand prevention compaction sand body in near well bore area |
| 01/04/2012 | CN102305042A Anti-freezing process for blowout-preventing pipe and cable matched with water injection well test |
| 01/03/2012 | CA2474998C Well system |
| 01/03/2012 | CA2466538C System for degassing muds and for analysing the gases contained in the muds |
| 12/29/2011 | WO2011163602A2 Systems and methods for collecting one or more measurements in a borehole |
| 12/29/2011 | WO2011160160A1 A shut-in tool |
| 12/29/2011 | WO2011139570A3 Formation testing |
| 12/29/2011 | WO2011095600A3 Method of conducting well operations |
| 12/29/2011 | US20110315445 Methods for Installling Sensors in a Borehole |
| 12/28/2011 | CN202090914U 井内分层气液两相流体保真取样装置 Gas-liquid two-phase stratified wells fidelity sampling device |
| 12/28/2011 | CN202090891U 环保取样防盗阀门 Environmental sampling valve theft |
| 12/28/2011 | CN102296950A 一种液压剪切式取样钻具 A hydraulic shear sampling drill |
| 12/28/2011 | CN102296949A 高温高压动态钻井液烃类拉曼谱检测仪 Dynamic HPHT drilling hydrocarbon Raman detector |
| 12/28/2011 | CN102296948A 一种随钻测井仪的数据帧存储方法 One kind of LWD data frame storage method |
| 12/28/2011 | CN102296947A 一种油田用速溶型微量元素示踪剂及制备方法 One kind of oil to use instant-type trace element tracer and preparation methods |
| 12/28/2011 | CN102296946A 复杂结构井井筒固液两相变质量流动模拟系统 Complex structure of solid-liquid two-phase Shaft variable mass flow simulation system |
| 12/28/2011 | CN101907725B 裂缝预测方法和装置 Fracture prediction method and apparatus |
| 12/28/2011 | CN101514614B 干冰升华孔底冷冻保压取样器及取样方法 Dry ice sublimation hole bottom freezer packing sampler and sampling methods |
| 12/28/2011 | CN101358523B 井下差压式流量密度计 Downhole density differential pressure flow meter |
| 12/27/2011 | US8082780 Methods and apparatus for decreasing a density of a downhole fluid |
| 12/22/2011 | WO2011159304A1 Non-invasive compressibility and in situ density testing of a fluid sample in a sealed chamber |
| 12/22/2011 | US20110313670 Method and apparatus for speciating hydrocarbons |
| 12/22/2011 | US20110308792 Method for operating an oil pool based on a reservoir model gradually deformed by means of cosimulations |
| 12/22/2011 | CA2773759A1 Non-invasive compressibility and in situ density testing of a fluid sample in a sealed chamber |
| 12/21/2011 | EP2396510A2 Wellbore fluid testing apparatus and methods |
| 12/21/2011 | CN202081890U 一种多能气举地层测试管柱 A multi-energy gas lift formation testing string |
| 12/21/2011 | CN202081861U 一种油气井地层测试专用井口装置 One kind of stratigraphic test wells dedicated wellhead |
| 12/21/2011 | CN202081839U 随钻声波测井隔声装置 LWD sonic acoustic device |
| 12/21/2011 | CN202078778U 浮子式定量脱气装置及其定量脱气器和配平装置 Float quantitative and quantitative degassing degassing unit and Trimmers |
| 12/21/2011 | CN102287179A 可洗井存储式井下视像检测装置 Well washable storage downhole video detection device |
| 12/21/2011 | CN101906965B Vr地质环境下的地层识别与分析方法 Vr stratigraphic identification and analysis of geological environment |
| 12/20/2011 | CA2497714C Data logger plunger |
| 12/17/2011 | CA2719816A1 Method and apparatus for speciating hydrocarbons and for liberating gases from drilling fluid |
| 12/15/2011 | WO2011155932A1 Formation evaluation probe set quality and data acquisition method |
| 12/15/2011 | WO2011154170A1 Method and apparatus for determining the local spatial extent of the phase of valuable mineral in a rock |
| 12/15/2011 | WO2011154169A1 Method and apparatus for increasing the yield of a deposit |
| 12/15/2011 | WO2011154168A1 Method and apparatus for increasing the yield in a deposit |
| 12/15/2011 | WO2011064541A3 Probabilistic earth model for subterranean fracture simulation |
| 12/15/2011 | US20110303463 Method for Determining the Content of A Plurality of Compounds Contained In A Drilling Fluid |
| 12/15/2011 | US20110303409 Downhole Fluid Injection |
| 12/15/2011 | CA2801630A1 Method and apparatus for determining the local spatial extent of the phase of valuable mineral in a rock |
| 12/15/2011 | CA2801289A1 Formation evaluation probe set quality and data acquisition method |
| 12/15/2011 | CA2737572A1 Characterizing flow production |
| 12/14/2011 | EP2395352A1 Method and device for determining the local extension of mineral material in a rock |
| 12/14/2011 | CN202073554U 矿井监测设备 Mine monitoring equipment |
| 12/14/2011 | CN202073546U 油井井口限流防盗阀 Wellhead valve limiting theft |
| 12/14/2011 | CN202073531U 油井新型防盗取样阀 The new sampling valve oil theft |
| 12/14/2011 | CN202070195U 浮子式定量脱气装置 Float quantitative degasser |
| 12/14/2011 | CN1912656B 非对称电磁测量 Asymmetric electromagnetic measurements |
| 12/14/2011 | CN102280184A 一种多功能复合型测试电缆 A multifunctional complex test cable |
| 12/14/2011 | CN102278107A 连续油管测试作业平台 Coiled tubing test platforms |
| 12/14/2011 | CN102278106A 综合低压系统的增强作用 Enhance the role of integrated low voltage systems |
| 12/14/2011 | CN102278088A 一种解决疏松砂岩稠油油藏出砂的技术 One solution unconsolidated sandstone heavy oil reservoir sand technology |
| 12/13/2011 | US8074510 High pressure screen flow-through testing device |
| 12/13/2011 | CA2624305C Methods and systems for determining reservoir properties of subterranean formations |
| 12/13/2011 | CA2624304C Methods and systems for determining reservoir properties of subterranean formations with pre-existing fractures |
| 12/08/2011 | WO2011152877A1 Monitoring emulsion formation |
| 12/08/2011 | WO2011152820A1 Fluid resistivity sensor |
| 12/08/2011 | WO2011150465A1 Through the drill string or core bit dst system |
| 12/08/2011 | US20110297444 Core barrel restraint |
| 12/08/2011 | US20110297369 Windowed Statistical Analysis For Anomaly Detection In Geophysical Datasets |
| 12/08/2011 | CA2800469A1 Fluid resistivity sensor |
| 12/07/2011 | EP2392772A1 Method and device for increasing the yield from a mineral deposit |
| 12/07/2011 | EP2392768A1 Method and device for increasing the yield from a mineral deposit |
| 12/07/2011 | EP2391800A2 In-situ stress measurements in hydrocarbon bearing shales |
| 12/07/2011 | CN202064947U 多相流取样器 Multiphase flow sampler |
| 12/07/2011 | CN202064946U 多级井下流体抽吸器 Multi-level downhole fluid suction devices |
| 12/07/2011 | CN202064945U 筒式三维储层物理模拟装置 Drum dimensional reservoir physics simulator |
| 12/07/2011 | CN202064944U 一种压裂充填防砂模型 Fracturing a filling sand model |
| 12/07/2011 | CN202064943U 层内非均质模型水驱油效率评价系统 Heterogeneity within the model water flooding efficiency evaluation system |
| 12/07/2011 | CN202064942U 一种组合圆柱筒体近井地带剪切模拟装置 A cylindrical barrel cut near wellbore simulator portfolio |
| 12/07/2011 | CN202064941U 一种带有防砂压实砂体的组合圆柱筒体近井地带剪切模拟装置 A sand compacted sand combination of cylindrical barrel near wellbore simulator with shear |
| 12/07/2011 | CN202064940U 一种带有三层压实砂体的多级圆柱筒体近井地带模拟装置 A three-compacted sand multistage cylindrical tube with a near wellbore simulator |
| 12/07/2011 | CN202064939U 一种带有三层压实砂体的圆台筒体状近井地带模拟装置 A three-compacted sand barrel-shaped round table near wellbore simulator with |
| 12/07/2011 | CN102268986A 井底参数测量装置 Downhole parameter measurement device |
| 12/07/2011 | CN101382071B 岩芯夹持装置 Core clamping device |
| 12/07/2011 | CN101294493B 居中型核磁共振测井仪探头永磁体 NMR logging tool probe centered type permanent magnet |
| 12/07/2011 | CA2741791A1 Hydrocarbon production allocation methods and systems |
| 12/07/2011 | CA2741763A1 Detection and quantification of gas mixtures in subterranean formations |
| 12/06/2011 | US8069924 Well jet device and the operating method thereof |
| 12/06/2011 | US8069715 Vadose zone pore liquid sampling system |
| 12/06/2011 | CA2702886C Apparatus and method for characterizing a reservoir |