| Patents for E21B 47 - Survey of boreholes or wells (31,352) |
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| 02/19/2015 | WO2015023386A1 Casing thickness measurement using acoustic wave correlation |
| 02/19/2015 | WO2015023385A1 Determining cement impedance from a formation boundary |
| 02/19/2015 | WO2015023384A1 Ultrasonic casing and cement evaluation method using a ray tracing model |
| 02/19/2015 | WO2015023378A1 Optical fiber sensing with enhanced backscattering |
| 02/19/2015 | WO2015023272A1 Multifunction end cap for coiled tubing telemetry |
| 02/19/2015 | WO2015023271A1 Improved array laterolog tool techniques |
| 02/19/2015 | WO2015023270A1 Crosstalk suppression or removal for galvanic measurements |
| 02/19/2015 | WO2015023266A1 Probabilistic methodology for real time drilling |
| 02/19/2015 | WO2015023249A1 Multi-zone completion systems and methods |
| 02/19/2015 | WO2015021550A1 Downhole probe assembly with bluetooth device |
| 02/19/2015 | US20150047839 Method and system for alignment of a wellbore completion |
| 02/19/2015 | US20150047838 Technique and apparatus to form a downhole fluid barrier |
| 02/19/2015 | US20150047837 Multi-Zone Single Trip Well Completion System |
| 02/19/2015 | US20150047836 Combination power source for a magnetic ranging system |
| 02/19/2015 | US20150047835 Downhole Fluid Analysis Method And Apparatus For Determining Hydrogen Indexes |
| 02/19/2015 | US20150047834 Non-stop driller manifold and methods |
| 02/19/2015 | US20150047825 Stripper device with retrieval mounting portion and method of use |
| 02/18/2015 | EP2836679A1 Formation thermal measurement apparatus, methods, and systems |
| 02/18/2015 | EP2836678A1 Detecting bed boundary locations based on measurements from multiple tool depths in a wellbore |
| 02/18/2015 | EP2836677A1 Apparatuses and methods for at-bit resistivity measurements for an earth-boring drilling tool |
| 02/18/2015 | EP2836667A2 Apparatus and method to remotely control fluid flow in tubular strings and wellbore annulus |
| 02/17/2015 | US8958989 Method and apparatus for removal of the double indication of defects in remote eddy current inspection of pipes |
| 02/17/2015 | US8958604 LWD real-time borehole image transmission |
| 02/17/2015 | US8956043 Tank device for storing a liquid medium that reduces pollutant levels |
| 02/17/2015 | US8955603 System and method for positioning a bottom hole assembly in a horizontal well |
| 02/17/2015 | US8955586 Beacon assembly |
| 02/17/2015 | US8955583 Subsea multiple annulus sensor |
| 02/17/2015 | CA2796761C Apparatus and methods for estimating tool inclination using bit-based gamma ray sensors |
| 02/12/2015 | WO2015021355A1 Magnetic resonance transmitter |
| 02/12/2015 | WO2015021246A1 System and methodology for running casing strings through a conductor tube |
| 02/12/2015 | WO2015021106A1 Apparatus and method for drill pipe transmission line connections |
| 02/12/2015 | WO2015021088A1 Methods for determining a saturation-height function in oil and gas reservoirs |
| 02/12/2015 | WO2015021004A1 Apparatus for mode extraction using multiple frequencies |
| 02/12/2015 | WO2015020893A1 Retention device for drill pipe transmission line |
| 02/12/2015 | WO2015020748A2 Automatic driller |
| 02/12/2015 | WO2015020735A1 Method and apparatus for quantitative measurement of hydrocarbon production with fluid imbibition |
| 02/12/2015 | WO2015020674A1 Improved optical fiber feedthrough incorporating fiber bragg grating |
| 02/12/2015 | WO2015020647A1 High-speed, wireless data communication through a column of wellbore fluid |
| 02/12/2015 | WO2015020645A1 Monitoring a well flow device by fiber optic sensing |
| 02/12/2015 | WO2015020642A1 Apparatus and method of multiplexed or distributed sensing |
| 02/12/2015 | WO2015019081A1 Multiphase flowmeter |
| 02/12/2015 | US20150042487 Latching Assembly for Wellbore Logging Tools and Method of Use |
| 02/12/2015 | US20150041216 Drill pipe |
| 02/12/2015 | US20150041215 Apparatus and method for drill pipe transmission line connections |
| 02/12/2015 | US20150041214 Retention device for drill pipe transmission line |
| 02/12/2015 | US20150041149 System for coupling mwd tools |
| 02/12/2015 | US20150041124 Automatic packer |
| 02/12/2015 | US20150041122 Multi-Phase Flow Meter and Methods for Use Thereof |
| 02/12/2015 | US20150041121 Outward venting of inflow tracer in production wells |
| 02/12/2015 | US20150041120 Modeling and analysis of hydraulic fracture propagation to surface from a casing shoe |
| 02/12/2015 | US20150041119 Sensing magnetized portions of a wellhead system to monitor fatigue loading |
| 02/12/2015 | US20150041117 Low profile magnetic orienting protectors |
| 02/12/2015 | US20150040657 Automatic Optimizing Methods for Reservoir Testing |
| 02/11/2015 | EP2835494A1 Transmission apparatus, reception apparatus, reception system and reception program |
| 02/11/2015 | EP2834682A1 Formation volumetric evaluation using normalized differential data |
| 02/11/2015 | EP2834681A1 Formation compositional evaluation using normalized differential data |
| 02/11/2015 | EP2834461A2 Drilling control and information system |
| 02/11/2015 | EP2834460A2 Drilling control system |
| 02/11/2015 | EP2834459A2 Drilling control and information system |
| 02/11/2015 | EP2834458A2 Drilling information system |
| 02/11/2015 | EP2834457A1 Well tools selectively responsive to magnetic patterns |
| 02/11/2015 | EP2834456A1 Injection of fluid into selected ones of multiple zones with well tools selectively responsive to magnetic patterns |
| 02/11/2015 | EP2834455A2 Wellbore information system |
| 02/11/2015 | EP2834453A2 Methods for determining wettability from nmr |
| 02/11/2015 | CN204152505U 一种泥浆脉冲器平衡活塞密封总成 One kind of mud pulser balance piston seal assembly |
| 02/11/2015 | CN204152504U 一种基于微功耗无线负荷/扭矩/转速一体化传感器 Based micro-power wireless load / torque / speed sensor integration |
| 02/11/2015 | CN204152503U 一种煤矿井下随钻方位伽马测井仪器 One kind of coal mine drilling azimuth gamma logging equipment |
| 02/11/2015 | CN204152502U 一种毛细管测压系统及其补偿装置 One kind of capillary pressure measurement system and its compensation device |
| 02/11/2015 | CN204152501U 一种利用负载阻抗特性提高井下测斜仪抗震性能的电路 A use of load impedance characteristics to improve the seismic performance of downhole inclinometer circuit |
| 02/11/2015 | CN204152500U 一种测井电缆保护装置 Logging and Cable Protectors |
| 02/11/2015 | CN204152499U 一种钻孔探测机器人 For a drilled exploration robot |
| 02/11/2015 | CN204152498U 一种测井仪器 One kind of logging equipment |
| 02/11/2015 | CN204152497U 一种煤炭地下气化高压试验台 One kind of high voltage underground coal gasification test rig |
| 02/11/2015 | CN104350396A 用于获得倾斜方位角的电磁方法 Electromagnetic method for obtaining the tilt azimuth |
| 02/11/2015 | CN104343443A 三维阵列感应测井仪器中消除直接耦合信号的方法 Dimensional array induction logging tool to eliminate the direct coupling of the signal method |
| 02/11/2015 | CN104343441A 一种用于超深井的井底钻进参数传输系统 The bottom for ultra-deep drilling parameter transmission system |
| 02/11/2015 | CN104343440A 泥浆压力脉冲信号的检测方法及系统 Method and system for detecting mud pressure pulse signal |
| 02/11/2015 | CN104343439A 分注管柱电动直读验封系统及其使用方法 Dispense string electric direct-reading test seal system and method of use |
| 02/11/2015 | CN104343438A 测量钻井相对距离的旋转磁场测距仪及其测量方法 Drilling rotating magnetic field measurement range finder and relative distance measurement method |
| 02/11/2015 | CN104343437A 基于激光陀螺的钻孔轨迹测量装置及方法 Apparatus and method for measuring laser gyro-based drilling trajectory |
| 02/11/2015 | CN104343436A 一种通井洗井水泥胶结固井质量测井一体化装置及方法 One kind of flushing through well cementing quality cement bond logging integrated device and method |
| 02/11/2015 | CN104343435A 密封件的测试装置 Test apparatus of the seal |
| 02/11/2015 | CN104343434A 防止探针棒在钻孔的内部卡合的装置及方法 Apparatus and method for preventing the probe rods fit inside the bore of the card |
| 02/11/2015 | CN104343416A 深水气井测试系统及测试方法 Deepwater wells test system and test methods |
| 02/11/2015 | CN102828736B 可实时调控的悬挂式井下油水分离系统 Real-time control of downhole oil-water separation system hanging |
| 02/11/2015 | CN102606135B 用于钻井筒中返出固相颗粒质量流量的检测系统及检测方法 For drilling the barrel back to a solid phase detection system and method for detecting particle mass flow |
| 02/10/2015 | US8953412 Method and assembly for determining landing of logging tools in a wellbore |
| 02/10/2015 | US8952829 System and method for generation of alerts and advice from automatically detected borehole breakouts |
| 02/10/2015 | US8952700 Method for minimizing delays while drilling using a magnetic ranging apparatus |
| 02/10/2015 | US8952319 Downhole deployable tools for measuring tracer concentrations |
| 02/10/2015 | US8950517 Drill bit with a retained jack element |
| 02/10/2015 | US8950483 System and method for umbilical-less positional feedback of a subsea wellhead member disposed in a subsea wellhead assembly |
| 02/10/2015 | US8950482 Fracture monitoring |
| 02/10/2015 | US8950480 Downhole tool delivery system with self activating perforation gun with attached perforation hole blocking assembly |
| 02/10/2015 | US8950472 System for monitoring linearity of down-hole pumping systems during deployment and related methods |
| 02/10/2015 | CA2783289C Method and apparatus for borehole positioning |
| 02/05/2015 | WO2015017190A2 Dynamic in-situ measurement of reservoir wettability |
| 02/05/2015 | WO2015016936A1 Acoustic sensor metadata dubbing channel |
| 02/05/2015 | WO2015016932A1 Algorithm for optimal icd configuration using a coupled wellbore-reservoir model |
| 02/05/2015 | WO2015016927A1 Acoustic coupling of electrical power and data between downhole devices |