| Patents for E21B 47 - Survey of boreholes or wells (31,352) |
|---|
| 01/11/2012 | CN202108497U Height detection controller for fracture zone |
| 01/11/2012 | CN202108496U Oil well diagram remote measurer with angle-adjustable solar cell panel |
| 01/11/2012 | CN202108495U Remote measuring device for oil well indicator diagrams |
| 01/11/2012 | CN202108491U Gas well separate stratum fracturing and separate stratum testing integrated process pipe column |
| 01/11/2012 | CN202108456U Multifunctional long-stopped well shut-in device for oil field |
| 01/11/2012 | CN202108455U Well opening system of abnormally-high-pressure gas well |
| 01/11/2012 | CN102317570A Method and apparatus for monitoring of esp |
| 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 | CN101526010B Mine water burst disaster monitoring and early-warning system and control method thereof |
| 01/11/2012 | CN101315024B Jackrod one-way pump injection type sealing/sealing releasing device for hole-inside base |
| 01/10/2012 | US8095318 Method for estimating formation dip using combined multiaxial induction and formation image measurements |
| 01/10/2012 | US8091633 Tool for locating and plugging lateral wellbores |
| 01/10/2012 | US8091631 Intelligent well system and method |
| 01/10/2012 | US8091246 Casing or work string orientation indicating apparatus and methods |
| 01/10/2012 | CA2551316C Rotary pulser |
| 01/10/2012 | CA2497150C Method for interpreting data measured in a hydrocarbon well in production |
| 01/10/2012 | CA2491903C System and method for automating or metering fluid recovered at a well |
| 01/10/2012 | CA2487132C Braided thermocouple cable bundle |
| 01/05/2012 | WO2012003329A2 Systems and methods for compressing data and controlling data compression in borehole communication |
| 01/05/2012 | WO2012003146A2 Blowout preventer monitoring system and method of using same |
| 01/05/2012 | WO2012003115A2 System, apparatus, and method for monitoring a subsea flow device |
| 01/05/2012 | WO2012001355A2 Riser wireless communications system |
| 01/05/2012 | WO2011139761A9 Gain-corrected measurements |
| 01/05/2012 | WO2011067606A3 Flow measurements in an oil reservoir |
| 01/05/2012 | US20120000707 Measuring Mechanism in a Bore Hole of a Pointed Cutting Element |
| 01/05/2012 | US20120000663 System, apparatus, and method for monitoring a subsea flow device |
| 01/05/2012 | US20120000655 Methods and apparatus for improved cement plug placement |
| 01/05/2012 | US20120000650 Methods and apparatus for improved cement plug placement |
| 01/05/2012 | US20120000649 Apparatus and methods for improved cement plug placement |
| 01/05/2012 | US20120000278 Gas trap for drilling mud having quick-release separable lower section |
| 01/05/2012 | CA2803533A1 Blowout preventer monitoring system and method of using same |
| 01/05/2012 | CA2801717A1 System, apparatus, and method for monitoring a subsea flow device |
| 01/04/2012 | EP2402556A1 Explosive initiator |
| 01/04/2012 | EP2402555A1 Tractor communication/control and select fire perforating switch |
| 01/04/2012 | EP2401475A2 System and method for wellbore monitoring |
| 01/04/2012 | CN202100254U Cableless signal transmission system for oil and gas wells |
| 01/04/2012 | CN202100253U Drilling pressure testing connector |
| 01/04/2012 | CN202100252U Electric inflation device for liquid level testing of coalbed gas well |
| 01/04/2012 | CN202100251U Nine-accelerometer continuous inclinometer |
| 01/04/2012 | CN202100250U Pinch-off preventing device of well logging wire |
| 01/04/2012 | CN202100249U Underground monitoring device of intelligent well |
| 01/04/2012 | CN202100228U Oil extraction testing blowout preventing device |
| 01/04/2012 | CN102305315A Operating method for making cable pass through overlong continuous oil pipe |
| 01/04/2012 | CN102305065A Wireless signal transmission method and system for oil and gas wells |
| 01/04/2012 | CN102305064A Horizontal communication well guiding system based on Labview display |
| 01/04/2012 | CN102305063A Flexible connector for oil well |
| 01/04/2012 | CN102305062A Method for interpreting saturation degree of multiphase liquid |
| 01/04/2012 | CN102305061A Method for explaining saturation of multiphase fluid |
| 01/04/2012 | CN102305060A Exploratory well metering control device |
| 01/04/2012 | CN102305042A Anti-freezing process for blowout-preventing pipe and cable matched with water injection well test |
| 01/04/2012 | CN102305032A Ball-shaped elastic centralizer |
| 01/04/2012 | CN102305021A Experimental method for simulating dynamic mechanics characteristic of underground drilling rig of air well drilling |
| 01/04/2012 | CN102304994A Electronic lock with function of automatically generating password and control method thereof |
| 01/03/2012 | US8087477 Methods and apparatuses for measuring drill bit conditions |
| 01/03/2012 | US8087461 Logging while producing apparatus and method |
| 01/03/2012 | US8087292 Method of miscible injection testing of oil wells and system thereof |
| 01/03/2012 | CA2559676C Borehole tool |
| 01/03/2012 | CA2520149C Borehole telemetry system |
| 01/03/2012 | CA2474998C Well system |
| 12/29/2011 | WO2011163602A2 Systems and methods for collecting one or more measurements in a borehole |
| 12/29/2011 | WO2011163491A2 Apparatus and method for remote actuation of a downhole assembly |
| 12/29/2011 | WO2011162939A2 Sensors in swellable materials |
| 12/29/2011 | WO2011162739A1 Mud pulse telemetry |
| 12/29/2011 | WO2011161513A1 Method and device for estimating cool down in a system |
| 12/29/2011 | WO2011139788A3 System and method for managing use of a downhole asset |
| 12/29/2011 | WO2011139786A3 Systems and methods for using wireless tags with downhole equipment |
| 12/29/2011 | WO2011139697A3 Pdc sensing element fabrication process and tool |
| 12/29/2011 | WO2011139468A3 Multi-gap interferometric sensors |
| 12/29/2011 | WO2011133620A3 Axial thrust balanced impeller for use with a downhole electrical submersible pump |
| 12/29/2011 | WO2011133530A3 Formation evaluation using a bit-based active radiation source and a gamma ray detector |
| 12/29/2011 | WO2011109233A3 Flow restriction insert for differential pressure measurement |
| 12/29/2011 | WO2011103564A3 Acoustic transducer with a backing containing unidirectional fibers and methods of making and using same |
| 12/29/2011 | WO2011094331A4 Device and method for discrete distributed optical fiber pressure sensing |
| 12/29/2011 | US20110320128 System and Method For Conformance Control In A Subterranean Reservoir |
| 12/29/2011 | US20110315445 Methods for Installling Sensors in a Borehole |
| 12/29/2011 | US20110315444 Apparatus and Methods for Corrosion Protection of Downhole Tools |
| 12/29/2011 | US20110315378 Insulating or modified conductivity casing in casing string |
| 12/29/2011 | US20110315377 Sensors in Swellable Materials |
| 12/29/2011 | US20110315375 System and method for determining downhole fluid parameters |
| 12/29/2011 | CA2801868A1 Mud pulse telemetry |
| 12/28/2011 | EP2399001A2 Drilling scorecard |
| 12/28/2011 | EP2399000A2 Swellable material activation and monitoring in a subterranean well |
| 12/28/2011 | EP2398999A1 Modular core orientation system |
| 12/28/2011 | EP2029854B1 Downhole formation testing sensors |
| 12/28/2011 | EP1996792B1 Method and apparatus for hydraulic fracturing and monitoring |
| 12/28/2011 | CN202090913U 井口测试连接器 Wellhead test connector |
| 12/28/2011 | CN202090912U 方位伽马测井装置 Gamma logging device orientation |
| 12/28/2011 | CN202090911U 一种探管测试装置 One kind of probe testing device |
| 12/28/2011 | CN202090910U 井下防喷系统的压力监测与声波发生装置 BOP downhole pressure monitoring system with acoustic generator |
| 12/28/2011 | CN202090909U 一种磁短节测试装置 A magnetic short section of the test device |
| 12/28/2011 | CN202090908U 小直径电子压力计环空测试防缠绳帽 Small diameter annulus test electronic manometer anti-tangle cord cap |
| 12/28/2011 | CN202090907U 油井热洗监测装置 Hot wash oil monitoring device |
| 12/28/2011 | CN202090906U 石油测井车及其使用的led灯光系统 Led lighting system and its use of petroleum logging truck |
| 12/28/2011 | CN202090897U 钻孔条栅套管 Grate casing drilling |
| 12/28/2011 | CN202090868U 用于起下连续油管的车载式多功能双臂吊 For coiled tubing from under the vehicle-mounted multi-function arms hanging |
| 12/28/2011 | CN1966934B 一种随钻预测钻头底下地层坍塌压力和破裂压力的方法 One kind of drilling forecast drill formation collapse under pressure and fracture pressure method |
| 12/28/2011 | CN102296981A 矿井瓦斯抽采与消突数据处理系统 Mine gas drainage and eliminate sudden data processing system |
| 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 |