| 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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| 08/24/2011 | CN201943685U 一种连续光谱气测录井装置 A continuous spectrum of gas logging device |
| 08/24/2011 | CN201943654U 取压取样组合阀 Pressure sampling combination valve |
| 08/24/2011 | CN201943653U 防盗取样阀 Theft sampling valve |
| 08/24/2011 | CN102162359A High-precision pumping device used for formation tester |
| 08/24/2011 | CN102162358A Soundwave-while-drilling well logging device |
| 08/24/2011 | CN102162357A Method for testing in-situ internal stress of vertical shaft wall |
| 08/24/2011 | CN102162356A Simulation device for evaluating sand control effect and anti-blocking capability of sand control pipe |
| 08/24/2011 | CN102162260A Lateral force application device of similar experimental model |
| 08/24/2011 | CN102160938A Passive degassing device as well as tank body and slurry treating element thereof |
| 08/24/2011 | CN101065556B A method and apparatus for storing energy and multiplying force to pressurize a downhole fluid sample |
| 08/18/2011 | WO2011098770A1 Method and system for predicting the effect of microbes injected into an oil-bearing reservoir |
| 08/18/2011 | US20110198124 Substantially simultaneous core containment, core retrieval and borehole abatement |
| 08/18/2011 | US20110198079 Phase sampler probe and method of using thereof |
| 08/18/2011 | CA2789122A1 Method and system for predicting the effect of microbes injected into an oil-bearing reservoir |
| 08/17/2011 | EP2356315A2 Fluid expansion in mud gas logging |
| 08/17/2011 | EP1226336B1 Drilling formation tester, apparatus and methods of testing and monitoring status of tester |
| 08/17/2011 | CN201934097U 油井防气取样桶 Well anti-gas sampling barrel |
| 08/17/2011 | CN201934091U 一种带逆止装置的推靠器 A tape device is pushed against the backstop device |
| 08/17/2011 | CN201934090U 液压测井绞车的智能控制系统 Intelligent control system of hydraulic logging winches |
| 08/17/2011 | CN201934065U 一种低位调节的注入头辅助支撑装置 One kind of low adjustable auxiliary support unit injector head |
| 08/17/2011 | CN201934058U 油井防盗取样阀 Well theft sampling valve |
| 08/17/2011 | CN201933518U 填埋场防渗层hdpe膜漏洞修补装置 Landfill liner hdpe film bug fixes means |
| 08/17/2011 | CN102155218A Electromagnetic password verification device and password input device |
| 08/17/2011 | CN102155217A Energy converter for sub-sectors |
| 08/17/2011 | CN102151421A Float type quantitative degasser |
| 08/17/2011 | CN101308062B Self sealed self decompressed coal seam sampling method and apparatus |
| 08/16/2011 | US7997341 Downhole fluid filter |
| 08/11/2011 | WO2011097111A2 Method and apparatus for measuring the vertical separation of two stations in a borehole |
| 08/11/2011 | WO2005104003A8 Method for constructing a geologic model of a subsurface reservoir |
| 08/11/2011 | CA2788605A1 Method and apparatus for measuring the vertical separation of two stations in a borehole |
| 08/10/2011 | CN201924922U 一种小直径地层测试取样器 One kinds small-diameter Formation Tester sampler |
| 08/10/2011 | CN201924921U 无源式泡沫钻井采样分析器 Passive sampling analyzer foam drilling |
| 08/10/2011 | CN201924920U 一种地质录井岩屑自动采集及清洗装置 One kind of automatic collection of geological logging debris and cleaning equipment |
| 08/10/2011 | CN201924919U 超临界流体钻完井模拟试验装置 Drilling and completion of supercritical fluid simulation test device |
| 08/10/2011 | CN201924913U 一种密度测井多井径刻度装置 Caliper with a density multi-scale logging device |
| 08/10/2011 | CN101864949B Test device and method for simulating acid etching crack flow guide capability |
| 08/10/2011 | CN101012748B Wellface scanning imagery logging device with microresistivity |
| 08/09/2011 | US7993604 Spectroscopic pH measurement using optimized mixtures of reagents to extend measurement range |
| 08/09/2011 | US7992639 Methods for improved hydrocarbon and water compatibility |
| 08/09/2011 | CA2392063C Method and program for simulating a physical system using object-oriented programming |
| 08/04/2011 | WO2011091626A1 Forced cooling circulation system for drilling mud |
| 08/04/2011 | WO2011044071A3 Cooling apparatus and methods for use with downhole tools |
| 08/04/2011 | WO2011044070A3 Formation testing planning and monitoring |
| 08/04/2011 | WO2011042448A9 Managing flow testing and the results thereof for hydrocarbon wells |
| 08/03/2011 | EP2352000A1 Apparatus for measuring in-situ stress of rock using thermal crack |
| 08/03/2011 | CN201917505U 岩心中气体渗流启动压力测试装置 Cores of gas flow starting pressure testing device |
| 08/03/2011 | CN201916145U 一种固定在钻铤表面的柱塞泵 A fixed piston surface drill collars |
| 08/03/2011 | CN201915957U Oil log gas sample collection anti-freezing and anti-plugging protector |
| 08/03/2011 | CN201915956U 定量针管注样系统 NOTE quantitative needle-like system |
| 08/03/2011 | CN201915955U 活塞循环往复式原油采样器 Piston cycle Crude Oil Sampler |
| 08/03/2011 | CN201915954U 沥青封堵模拟试验装置 Asphalt sealing simulation test device |
| 08/03/2011 | CN201915953U 瓦斯含量快速测定仪 Gas content Tester |
| 08/03/2011 | CN201915952U 一种岩溶洞穴储层埋藏保存程度的预测装置 One kind of karst caves buried reservoir prediction means save degree |
| 08/03/2011 | CN201915938U 新型多臂井径刻度装置 The new multi-arm caliper scale devices |
| 08/03/2011 | CN102141637A Method for continuously quantitative evaluation of pore structures of reservoir strata by utilizing nuclear magnetic resonance well logging data |
| 08/03/2011 | CN102140914A Underground debris sampler |
| 08/03/2011 | CN102140908A Device, system and method for evaluating sand prevention performance of sand prevention sieve pipe |
| 08/02/2011 | US7987907 Hydrocarbon recovery process |
| 08/02/2011 | US7987901 Electrical control for a downhole system |
| 07/28/2011 | WO2011090868A2 Single pump focused sampling |
| 07/28/2011 | WO2011090865A2 Detecting and meausuring a coring sample |
| 07/27/2011 | EP2347096A2 Isolation system for drilling systems |
| 07/27/2011 | CN201908653U Computerized tomographic (CT) scanning test system for non-homogeneity models |
| 07/27/2011 | CN201908652U Heterogeneous multilayered core holder |
| 07/27/2011 | CN201908651U Nesting type combined sealing can |
| 07/27/2011 | CN201908647U Oilfield logging device |
| 07/27/2011 | CN201908646U Downhole instrument through line routing device |
| 07/27/2011 | CN201908644U Optimized short-array induction logger |
| 07/27/2011 | CN102134994A Stratum data processing method based on electrical resistivity of bedrock oil deposit oil water layer |
| 07/27/2011 | CN102134993A Simulation experiment device for controlling production of coal bed methane vertical well |
| 07/27/2011 | CN102134970A Device for accurately positioning deep hole in process of testing ground stress |
| 07/27/2011 | CN101054898B Electromagnetic wave logging tool coil supporting and pulling device |
| 07/27/2011 | CA2691255A1 Method, system and computer-readable medium for providing a user interface for predicting the physical attributes of a proposed well |
| 07/26/2011 | US7984761 Openhole perforating |
| 07/26/2011 | US7984755 Electrical cased well-logging method |
| 07/21/2011 | WO2011087607A1 Pressure controlled tester and collet therefor |
| 07/21/2011 | WO2011085444A1 Measuring gas content of unconventional reservoir rocks |
| 07/21/2011 | WO2011044427A3 Automated sidewall coring |
| 07/21/2011 | US20110174543 Detecting and measuring a coring sample |
| 07/21/2011 | US20110174484 Well tools operable via thermal expansion resulting from reactive materials |
| 07/21/2011 | US20110174068 Wireline Conveyed Single Phase Fluid Sampling Apparatus and Method for Use of Same |
| 07/21/2011 | CA2786778A1 Measuring gas content of unconventional reservoir rocks |
| 07/20/2011 | CN201902207U Discharge and mining control simulation experiment device for coalbed gas vertical well |
| 07/20/2011 | CN201902206U Leakage stopping simulation evaluation device for well drilling in stress-sensitive formation |
| 07/20/2011 | CN102128817A Three-dimensional quantitative fluorescence spectrum total volume integral method |
| 07/20/2011 | CN102128031A Simulation device and method for researching horizontal well gas-liquid two-phase pipe flow mechanism |
| 07/20/2011 | CN102128030A Wellbore vicinity shearing simulating device with multistage cylindrical barrel with sand-prevention compacted sand bodies |
| 07/20/2011 | CN102128028A Ultrasonic signal inversion method for evaluating cement and formation interface cementing quality |
| 07/20/2011 | CN102128026A Formation pressure measuring device while drilling |
| 07/20/2011 | CN102128025A Method for determining drilling fluid density in salt-gypsum layer deflection |
| 07/20/2011 | CN102128012A Method capable of avoiding blowout |
| 07/20/2011 | CN102125772A Degasser |
| 07/19/2011 | CA2598712C Apparatus and methods to perform focused sampling of reservoir fluid |
| 07/19/2011 | CA2348804C Method for modelling flows in a fractured environment traversed by major fractures |
| 07/14/2011 | WO2011041577A3 Pump-in seal |
| 07/14/2011 | WO2011035131A3 Tdem forward focusing system for downhole use |
| 07/14/2011 | WO2009032924A3 Method and system for increasing production of a reservoir using lateral wells |
| 07/14/2011 | US20110168446 Method and apparatus for transmitting or receiving information between a down-hole eqipment and surface |
| 07/14/2011 | US20110167910 Apparatus and method for detecting a property of a fluid |
| 07/13/2011 | CN201896615U Experimental circulating device of recyclable foam base fluid used in sand flushing operation |