| 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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| 07/19/2012 | US20120180562 Logging tool sonde sleeve |
| 07/18/2012 | CN202338340U 一种控制高压流体流速的装置 A method of controlling flow rate of the high-pressure fluid |
| 07/18/2012 | CN202338339U Eccentric backup device for logging instrument |
| 07/18/2012 | CN202338328U 一种可控外径尺寸片式扶正器 A controlled diameter size piece centralizers |
| 07/18/2012 | CN202338275U 油水井防冻取样阀 Oil wells antifreeze sampling valve |
| 07/18/2012 | CN1912341B Methods and apparatus of fluid analysis |
| 07/18/2012 | CN102597766A In-borehole gas monitor apparatus and method comprising a VOC concentration analyser and a VOC collector |
| 07/18/2012 | CN102597422A Formation fluid sampling control |
| 07/18/2012 | CN102587900A Undisturbed soil sampler |
| 07/18/2012 | CN102587899A Observation well liquid level test method of coal seam in-situ key parameters |
| 07/18/2012 | CN102587898A Method and device for detecting gas content of mixed fluid under while drilling condition |
| 07/18/2012 | CN102587894A Horizontal well seepage experimental device |
| 07/18/2012 | CN102587874A Experimental device and experimental method for hydrothermal catalytic pyrolysis in heavy oil layer by means of ultrasonic wave |
| 07/18/2012 | CN102580360A Degassing equipment, fluid suction structure thereof and fluid suction head of fluid suction structure |
| 07/18/2012 | CN101393188B Method for characterization research of depth fluid flowing diverting agent in oil field |
| 07/18/2012 | CN101377129B Transducer assemblies for subsurface logging use |
| 07/18/2012 | CN101344000B Array magnetic-acoustic electro-conductibility imaging logging method and apparatus |
| 07/18/2012 | CN101268359B Electro-chemical sensor |
| 07/17/2012 | CA2610525C Multi-zone formation evaluation systems and methods |
| 07/12/2012 | WO2012094094A2 Method and apparatus for a mid-infrared (mir) system for real time detection of petroleum in colloidal suspensions of sediments and drilling muds during drilling, logging, and production operations |
| 07/12/2012 | US20120175109 Non-intrusive flow indicator |
| 07/12/2012 | CA2823716A1 Method and apparatus for a mid-infrared (mir) system for real time detection of petroleum in colloidal suspensions of sediments and drilling muds during drilling, logging, and production operations |
| 07/11/2012 | EP2473843A1 In-borehole gas monitor apparatus and method comprising a voc concentration analyser and a voc collector |
| 07/11/2012 | CN202333397U 一种用于随钻测量的电联通装置 Electrical communication apparatus for measurement while drilling |
| 07/11/2012 | CN202325500U 油井遥控取样装置 Well remote sampling device |
| 07/11/2012 | CN202325499U 气体钻井岩屑取样器 Gas drilling cuttings sampler |
| 07/11/2012 | CN202325498U Balanced calibration device for directional double-gamma instrument |
| 07/11/2012 | CN202325497U 储层参数变化对声波测井影响的模拟实验装置 Reservoir simulation device parameters on the impact of sonic logging |
| 07/11/2012 | CN202325496U 卧式推靠器 Horizontal biasing device |
| 07/11/2012 | CN202325495U 随钻密度测量仪器 LWD density measuring instruments |
| 07/11/2012 | CN202325494U 防震抗撞击的伽马闪烁探头 Shock and impact resistant gamma scintillation probe |
| 07/11/2012 | CN202325476U 新型随钻电阻率壳体 The new casing drilling resistivity |
| 07/11/2012 | CN202325472U 岩层结构探测的窥视仪探头可转动定向器 Peep rock structure detection instrument probe rotatable directional control |
| 07/11/2012 | CN102562138A Active decompression and outburst removal method for coal petrography dynamic disasters of expansion region of high gas-containing coal seam |
| 07/11/2012 | CN102562054A Electronic-control high-pressure physical-property sampling system |
| 07/11/2012 | CN102562053A Sampling method for oil and gas field deep well gas and liquid mixture and device adopted by same |
| 07/11/2012 | CN102562052A Method for recognizing harm bodies of casing failure of shallow layer of close well spacing |
| 07/11/2012 | CN102562051A Method for processing original data of gas-measuring plate |
| 07/11/2012 | CN102562050A Method for reducing pressure of switch piston of intelligent water exploration instrument and mechanical switch of intelligent water exploration instrument |
| 07/11/2012 | CN102562049A Method for predicting change of strata while drilling |
| 07/11/2012 | CN102562048A Method for predicting low-porosity and low-permeability clasolite effective reservoir at high-diagenesis stage |
| 07/11/2012 | CN102562047A System and method for correcting borehole environment under centered array sensing instruments |
| 07/11/2012 | CN102562046A Well wall image acquirer, system and method |
| 07/11/2012 | CN102562038A Direct reading testing system for pressure and temperature of underground stratum |
| 07/11/2012 | CN102562030A Shell for sensing logging device and design plan for shell |
| 07/11/2012 | CN102562027A Plate type centering device with controllable outer diameter and manufacturing method of plate type centering device |
| 07/11/2012 | CN102562008A Oil-gas exploration and development integrated mode for Bohai Sea |
| 07/11/2012 | CN102561996A Intelligent well killing system |
| 07/11/2012 | CN102121374B Borehole time domain pulse electromagnetic method for detecting electrical resistivity of stratum out of metal bushing |
| 07/11/2012 | CN102011580B Method for predicting failure pressure of reservoir with acid damage |
| 07/11/2012 | CN101581214B Transient electromagnetic logging device in through-casing well |
| 07/10/2012 | US8215391 Coiled tubing deployed single phase fluid sampling apparatus and method for use of same |
| 07/10/2012 | US8215390 Coiled tubing deployed single phase fluid sampling apparatus and method for use of same |
| 07/10/2012 | US8215389 Apparatus and method for formation evaluation |
| 07/10/2012 | US8215388 Separator for downhole measuring and method therefor |
| 07/10/2012 | US8215387 In situ combustion in gas over bitumen formations |
| 07/10/2012 | CA2478136C Determining the pressure of formation fluid in earth formations surrounding a borehole |
| 07/05/2012 | WO2012089985A1 Analysis of a fluid flowing in a pipe |
| 07/05/2012 | WO2012033650A3 Machine, computer program product and method to generate unstructured grids and carry out parallel reservoir simulation |
| 07/04/2012 | CN202307399U Workable precise ceramic pipe-shaped coil insulator |
| 07/04/2012 | CN202300384U 气动定量泥浆脱气装置 Pneumatic quantitative mud degasser |
| 07/04/2012 | CN202300383U 电动脱气机支架 Electric degasser Bracket |
| 07/04/2012 | CN202300382U 井周超声成像下井仪扫描头 Well-week ultrasound imaging scanner head go down |
| 07/04/2012 | CN202300381U 井周超声成像下井仪 Well-week ultrasound imaging downhole instrument |
| 07/04/2012 | CN202300380U 一种水平井完井模拟试验装置 A horizontal well completion simulation test device |
| 07/04/2012 | CN202300379U 推靠器伸出位置检测装置 Biasing protrudes position detecting means |
| 07/04/2012 | CN202300369U 一种双弱点充油式测井马龙头 A two weaknesses leading oil-filled horse logging |
| 07/04/2012 | CN202300313U 油井取样阀防盗装置 Oil sampling valve anti-theft device |
| 07/04/2012 | CN1861981B Apparatus and method for sensing downhole parameters. |
| 07/04/2012 | CN1756893B Method and system for cause-effect time lapse analysis |
| 07/04/2012 | CN1690357B Openhole perforating device |
| 07/04/2012 | CN102536224A Convenient sampling drill bit |
| 07/04/2012 | CN102536223A Rapid calculation method for porosity of coal seam fracture |
| 07/04/2012 | CN102536222A Analog evaluation device for evaluating damage of coalbed methane reservoir polluted by external fluid |
| 07/04/2012 | CN102536221A Borehole fluid time spectrum evaluation method using PNT (pulsed-neutron tool) |
| 07/04/2012 | CN102536220A Ground test method and ground test device for remote intersection tools |
| 07/04/2012 | CN102536219A Detection method for reservoir changes of oil and gas fields |
| 07/04/2012 | CN102536218A Method for monitoring temperature of coal underground gasification working surface |
| 07/04/2012 | CN102536200A Method for predicting primary capacity of compact carbonate rock gas bearing formations |
| 07/04/2012 | CN102536199A Controllable source while-drilling nuclear logging tool calibration device and calibration method |
| 07/04/2012 | CN102536198A Electrode measuring pushing-against mechanism of casing-through resistivity logging instrument |
| 07/04/2012 | CN102536195A Method for automatically dividing logging depositional sequence |
| 07/04/2012 | CN101672197B Processing method for high-pressure water-enriched filling karst cavity |
| 07/04/2012 | CN101532384B Continuous measuring moisture content meter by underground low-frequency dielectric method |
| 07/04/2012 | CN101435330B Method for making man-made rock core target |
| 07/04/2012 | CN101421488B Kerogen extraction from subterranean oil shale resources |
| 07/04/2012 | CN101343999B Array magnetic-acoustic electro-conductibility imaging logging method and apparatus |
| 07/04/2012 | CN101305159B Method of drilling and producing hydrocarbons from subsurface formations |
| 07/04/2012 | CN101235716B Prealarming method and method for avoiding oil gas well drilling neighbouring wellbore collision |
| 07/04/2012 | CN101139925B Method for while-drilling testing reservoir parameter property and adjusting well drilling action in real time |
| 07/03/2012 | US8210284 Coring apparatus and methods to use the same |
| 07/03/2012 | US8210260 Single pump focused sampling |
| 07/03/2012 | US8210257 Fracturing a stress-altered subterranean formation |
| 06/28/2012 | WO2012088417A2 Sampling tool with dual flowline architecture |
| 06/28/2012 | WO2012088058A2 Sampling assembly for a single packer |
| 06/28/2012 | WO2012087898A2 Wettability analysis of disaggregated material |
| 06/28/2012 | WO2012087864A2 Method of utilizing subterranean formation data for improving treatment operations |
| 06/28/2012 | WO2012087797A2 Method to characterize underground formation |
| 06/28/2012 | WO2012087305A1 Azimuthal saturation logging systems and methods |
| 06/28/2012 | WO2012054865A3 System and method related to a sampling packer |