| Patents for E21B 47 - Survey of boreholes or wells (31,352) |
|---|
| 08/18/2011 | WO2009133375A3 Downhole tool for determining the tuinnel depth of perforation tunnels |
| 08/18/2011 | US20110202275 Determining fluid pressure |
| 08/18/2011 | US20110199087 Flux plane locating in an underground drilling system |
| 08/18/2011 | US20110198125 Percussive driving apparatus for environmental sampling or test device |
| 08/18/2011 | US20110198078 Formation evaluation instrument and method |
| 08/18/2011 | US20110198077 Apparatus and method for valve actuation |
| 08/18/2011 | US20110198076 Adjustment of mud circulation when evaluating a formation |
| 08/18/2011 | US20110197667 Flow meter |
| 08/18/2011 | CA2789312A1 X-ray fluorescence analyzer |
| 08/18/2011 | CA2789299A1 Automated drilling fluid analyzer |
| 08/18/2011 | CA2788314A1 Passive micro-vessel and sensor |
| 08/17/2011 | EP2356612A1 Non-contact measurement systems for wireline and coiled tubing |
| 08/17/2011 | EP1226336B1 Drilling formation tester, apparatus and methods of testing and monitoring status of tester |
| 08/17/2011 | CN201934096U 井下压差式液面仪 Downhole pressure-level meter |
| 08/17/2011 | CN201934095U 陀螺测斜式井中三分量仪 Gyro inclinometer type well-thirds meter |
| 08/17/2011 | CN201934094U 一种稠油井陀螺加重装置 One kind of heavy oil gyro heavier device |
| 08/17/2011 | CN201934093U 新型抽油机悬绳器 The new pumping hanging rope |
| 08/17/2011 | CN201934092U 测井深度张力采集仪 Logging depth tension logger |
| 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 | CN201934089U 射孔起爆监测装置 Monitoring device detonating perforating |
| 08/17/2011 | CN201934082U 采油井电动分层配产器测控系统 Production wells producing electric layered with measurement and control system |
| 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 | CN201934061U 抽油井电加热自动控制系统 Pumping wells electric heating automatic control system |
| 08/17/2011 | CN102159792A Down-hole liquid level control for hydrocarbon wells |
| 08/17/2011 | CN102159602A Cationic fluorinated polymer compositions and methods for treating hydrocarbon-bearing formations using the same |
| 08/17/2011 | CN102155218A Electromagnetic password verification device and password input device |
| 08/17/2011 | CN102155217A Energy converter for sub-sectors |
| 08/17/2011 | CN102155216A Signal optimization and interference analysis method of continuous wave measurement while drilling |
| 08/17/2011 | CN102155215A Horizontal well dual caliper |
| 08/17/2011 | CN102155214A Detection device for gyrolevel |
| 08/17/2011 | CN102155213A Dynamic detection method for mine mining-induced fracture |
| 08/17/2011 | CN102155212A Throwing hole orientator of bit hole rig and positioning method |
| 08/17/2011 | CN102155211A Circuit for monitoring well kick at deepwater drilling mud line |
| 08/17/2011 | CN102155187A Method for treating coal bed bottom plate karst water through hydraulic jetting and radial drilling |
| 08/17/2011 | CN101368477B Oil-water interface inspection and control method |
| 08/17/2011 | CN101089363B Method for drawing track of borehole of running casing |
| 08/16/2011 | US7997340 Permanent downhole deployment of optical sensors |
| 08/16/2011 | CA2566010C Reciprocating pump drive apparatus |
| 08/16/2011 | CA2555170C System and method for optimizing production in a artificially lifted well |
| 08/11/2011 | WO2011097445A2 Spoolable signal conduction and connection line and method |
| 08/11/2011 | WO2011097339A1 Tilt meter including optical fiber sections |
| 08/11/2011 | WO2011097111A2 Method and apparatus for measuring the vertical separation of two stations in a borehole |
| 08/11/2011 | WO2011097110A1 Method and apparatus for precise positioning of a borehole measurement instrument |
| 08/11/2011 | WO2011097063A2 Measurement devices with memory tags and methods thereof |
| 08/11/2011 | WO2011069167A3 Geotechnical horizontal directional drilling |
| 08/11/2011 | WO2010150000A3 Method and apparatus for monitoring fluids |
| 08/11/2011 | US20110194806 Tilt meter including optical fiber sections |
| 08/11/2011 | US20110193560 Boring technique using locate point measurements for boring tool depth prediction |
| 08/11/2011 | US20110192599 System and method for determining position within a wellbore |
| 08/11/2011 | US20110192598 Use of Micro-Electro-Mechanical Systems (MEMS) in Well Treatments |
| 08/11/2011 | US20110192597 Use of Micro-Electro-Mechanical Systems (MEMS) in Well Treatments |
| 08/11/2011 | US20110192596 Through tubing intelligent completion system and method with connection |
| 08/11/2011 | US20110192595 Method and apparatus for measuring particle size distribution in drilling fluid |
| 08/11/2011 | US20110192594 Use of Micro-Electro-Mechanical Systems (MEMS) in Well Treatments |
| 08/11/2011 | US20110192593 Use of Micro-Electro-Mechanical Systems (MEMS) in Well Treatments |
| 08/11/2011 | US20110192592 Use of Micro-Electro-Mechanical Systems (MEMS) in Well Treatments |
| 08/11/2011 | US20110192222 Piezoelectric actuator for downhole applications |
| 08/11/2011 | DE102010007655A1 Method for monitoring carbon dioxide reservoir in e.g. coal-fired power station, involves closing lines or regions determined from time variation of amplitude and/or frequency and from alteration of dynamic change on state of reservoir |
| 08/11/2011 | DE10123999B4 Vorrichtung und Verfahren zum Ermitteln von Bohrparametern Apparatus and method for determining drilling parameters |
| 08/11/2011 | CA2788605A1 Method and apparatus for measuring the vertical separation of two stations in a borehole |
| 08/11/2011 | CA2788593A1 Method and apparatus for precise positioning of a borehole measurement instrument |
| 08/10/2011 | EP2354440A2 Communications connection in a subsea well |
| 08/10/2011 | EP2354437A2 Methods and systems for orienting in a wellbore |
| 08/10/2011 | EP2352902A1 A downhole pressure and vibration measuring device integrated in a pipe section as a part of a production tubing |
| 08/10/2011 | CN201928309U 探井计量数据远程网络监控装置 Exploratory measurement data remote network monitoring device |
| 08/10/2011 | CN201924918U 油水井套压取压装置 Oil wells set pressure to take pressure device |
| 08/10/2011 | CN201924917U 煤层气无压井液面监测装置 CBM no-kill level monitoring device |
| 08/10/2011 | CN201924916U 一种套管轨迹与变形方位全井测量装置 A whole well trajectory and deformation azimuth measuring device casing |
| 08/10/2011 | CN201924915U 一种声速、分扇区水泥胶结测井仪声系构成 One kind of sound, sub-sector of the cement bond logging instrument sound system constituted |
| 08/10/2011 | CN201924914U 一种维修时免拆装的整体鱼雷 A free disassembly when servicing the whole torpedo |
| 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 | CN201924912U 一种连续油管井下力学行为模拟实验装置 A continuous tubing downhole mechanical behavior simulation device |
| 08/10/2011 | CN201924911U 一种自带扶正装置的流量测调仪器 A built-tune the flow measurement instrumentation righting device |
| 08/10/2011 | CN201924910U 一种罐式称重计量装置 A tank weighing measurement device |
| 08/10/2011 | CN201924887U 分体式控制系统的单井控制子模块 Well Control sub-module split control system |
| 08/10/2011 | CN201924885U 一种可投杆和管内加压打开的测试循环阀 One kind can be cast rod and tube pressure testing cycle valve open |
| 08/10/2011 | CN201924850U 流量式井下漏点检测装置 Downhole flow leak detection device |
| 08/10/2011 | CN201924830U 一种双管外导内钻定向连续取芯造斜机具 Directional drilling within a two-tube outer conductor continuous coring equipment whipstocking |
| 08/10/2011 | CN201924828U 多功能试验机用双向动力水龙头装置 Multifunction tester with two-way power swivel device |
| 08/10/2011 | CN1776196B Method and system for accessing subterranean deposits from the surface |
| 08/10/2011 | CN102147051A Heating system for wellhead oil pipeline (Interval heating technology) |
| 08/10/2011 | CN102146792A Temperature and pressure monitoring cable with protection tube and manufacturing method thereof |
| 08/10/2011 | CN102146791A Method and device for measuring working fluid level of oil well |
| 08/10/2011 | CN102146790A Safe and intelligent oil-well liquid level depth tester |
| 08/10/2011 | CN102146779A Underground locating and angle-fixing drilling and windowing tool for horizontal well |
| 08/10/2011 | CN101929326B Geothermal well layer-by-layer filter material feeding process |
| 08/10/2011 | CN101124383B Improved anchor arm for seismic logging tool |
| 08/09/2011 | US7994932 Borehole telemetry system |
| 08/09/2011 | US7993604 Spectroscopic pH measurement using optimized mixtures of reagents to extend measurement range |
| 08/09/2011 | US7992434 Christmas tree with internally positioned flowmeter |
| 08/09/2011 | CA2635097C Method for determining formation fluid entry into or drilling fluid loss from a borehole using a dynamic annular pressure control system |
| 08/09/2011 | CA2451587C Conductor system |
| 08/04/2011 | WO2011094691A2 Lithology pair ratio: a ratio-based lithology indicator using pair production |
| 08/04/2011 | WO2011094405A2 Time dependent neutron-gamma spectroscopy |
| 08/04/2011 | WO2011094401A2 Time dependent measurment of formation properties using pulsed neutron generators |
| 08/04/2011 | WO2011094331A2 Device and method for discrete distributed optical fiber pressure sensing |
| 08/04/2011 | WO2011094275A2 Nmr contrast logging |
| 08/04/2011 | WO2011094268A2 Combined swept-carrier and swept-modulation frequency optical frequency domain reflectometry |
| 08/04/2011 | WO2011094266A2 Configuration of ordered multicomponent devices |