| Patents for E21B 47 - Survey of boreholes or wells (31,352) |
|---|
| 01/08/2014 | CN203383807U Self-supporting top sheave |
| 01/08/2014 | CN203383806U Coil structure of three-component induction logging instrument |
| 01/08/2014 | CN203383805U Oil well pumping unit outlet pressure difference type passing liquid sensor |
| 01/08/2014 | CN203383804U Scale locating device of induction log instrument |
| 01/08/2014 | CN203383751U Toppling type hydraulic lifting spraying-resistant device |
| 01/08/2014 | CN103502562A Device for measuring and controlling on-line viscosity at high pressure |
| 01/08/2014 | CN103498669A Quantitative determination method of interbedded cross flows of heterogeneous rock core models |
| 01/08/2014 | CN103498667A Downhole parameter transmitting system for shaft producing well |
| 01/08/2014 | CN103498666A Locator using two horizontally displaced measurement points |
| 01/08/2014 | CN103498665A Linear fixed type wireless deep hole clinometer and deep hole inclination measurement system |
| 01/08/2014 | CN103498664A Device and method for measuring rotary drilling in real time while drilling |
| 01/08/2014 | CN103498663A Method and device for determining swabbing technological parameters of sucker-rod pump lifting system |
| 01/08/2014 | CN103498662A Cement sheath structural integrity mechanics experiment device |
| 01/08/2014 | CN103498661A Method for determining oil deposit high pressure physical property parameters |
| 01/08/2014 | CN103498660A Single-well water-containing-rate remote metering device and transmission method of single-well water-containing-rate data |
| 01/08/2014 | CN103498659A Logging truck |
| 01/08/2014 | CN103498658A Gamma logging data processing method |
| 01/08/2014 | CN103498651A Thickened oil steam huff-and-puff well pressure curve collecting and using method |
| 01/08/2014 | CN102383781B Method for measuring gas pressure of coal bed |
| 01/08/2014 | CN102168549B Device and method for measuring output liquid of coal bed methane well |
| 01/08/2014 | CN102094628B LaBr3(Ce) crystal-based multi-channel gamma energy spectrum logging instrument |
| 01/08/2014 | CN101878351B Real-time completion monitoring with acoustic waves |
| 01/07/2014 | US8622150 Boring tool tracking fundamentally based on drill string length, pitch and roll |
| 01/07/2014 | US8622128 In-situ evaluation of reservoir sanding and fines migration and related completion, lift and surface facilities design |
| 01/07/2014 | US8621921 Retrievable downhole testing tool |
| 01/07/2014 | CA2788984C High efficiency fluid pumping apparatus and method |
| 01/07/2014 | CA2527271C Method for precise drilling guidance of twin wells |
| 01/04/2014 | CA2820179A1 Methods and apparatus for determining slowness of wavefronts |
| 01/03/2014 | WO2014004957A1 Interactive and three-dimensional well path design |
| 01/03/2014 | WO2014004946A1 Wireline flow through remediation tool |
| 01/03/2014 | WO2014004815A1 Electromagnetic imaging of proppant in induced fractures |
| 01/03/2014 | WO2014004786A1 Apparatus with rigid support and related methods |
| 01/03/2014 | WO2014004777A1 Analyzing subterranean formation with current source vectors |
| 01/03/2014 | WO2014004515A1 Data-logging truck control system |
| 01/03/2014 | WO2014004191A1 Neutrally-buoyant borehole investigation tools and methods |
| 01/03/2014 | WO2014003998A1 Impedance spectroscopy measurement device and methods for analysis of live reservoir fluids and assessment of in-situ corrosion of multiple alloys |
| 01/03/2014 | WO2014003913A1 Pore pressure measurement in low-permeability and impermeable materials |
| 01/03/2014 | WO2014003784A2 Full tensor micro-impedance imaging |
| 01/03/2014 | WO2014003763A1 Method and system of selecting hydrocarbon wells for workover |
| 01/03/2014 | WO2014003757A2 Measurement calibration apparatus, methods, and systems |
| 01/03/2014 | WO2014001249A1 Monitoring apparatus and method |
| 01/03/2014 | WO2014000777A1 Remote and manually actuated well tool |
| 01/03/2014 | WO2014000760A1 Arrangement for venting a riser annulus |
| 01/03/2014 | WO2014000096A1 Sagd control in leaky reservoirs |
| 01/03/2014 | WO2013147996A3 Optical casing collar locator systems and methods |
| 01/03/2014 | WO2013133861A3 Method for communicating with logging tools |
| 01/03/2014 | WO2013133860A3 Method and assembly for conveying well logging tools |
| 01/03/2014 | WO2012176174A3 Tool and method for locking and releasing a plug |
| 01/03/2014 | CA2877477A1 Method and system of selecting hydrocarbon wells for workover |
| 01/03/2014 | CA2877309A1 Remote and manually actuated well tool |
| 01/03/2014 | CA2877147A1 Electromagnetic imaging of proppant in induced fractures |
| 01/03/2014 | CA2876326A1 Full tensor micro-impedance imaging |
| 01/03/2014 | CA2874822A1 Data-logging truck control system |
| 01/02/2014 | US20140002088 Well monitoring |
| 01/02/2014 | US20140000910 Apparatus with rigid support and related methods |
| 01/02/2014 | US20140000358 Pore pressure measurement in low-permeability and impermeable materials |
| 01/02/2014 | CA2819959A1 Systems and methods for monitoring a wellbore and actuating a downhole device |
| 01/01/2014 | EP2680042A2 Surface instrumentation configuration for a drilling rig operation |
| 01/01/2014 | EP2679764A1 A Well comprising a Safety Mechanism and Sensors |
| 01/01/2014 | EP2679763A1 Well |
| 01/01/2014 | EP2679762A1 Casing Valve |
| 01/01/2014 | EP2678717A1 Method and systems of determining viable hydraulic fracture scenarios |
| 01/01/2014 | CN203374278U Rotary guiding signal transmission system |
| 01/01/2014 | CN203374277U Blocking type pressure meter for testing leakage |
| 01/01/2014 | CN203374276U Eccentric integrated dedicated well-testing instrument |
| 01/01/2014 | CN203374275U Protector for preventing cable on square bushing wellhead from being worn and being smashed |
| 01/01/2014 | CN203374274U Protector for preventing cable on round bushing wellhead from being worn and being smashed |
| 01/01/2014 | CN203374273U Metering and weighing device of oil produced by oil field single well |
| 01/01/2014 | CN203374272U Metering device of oil produced by oil field signal well |
| 01/01/2014 | CN203374271U Remote diagnosis device of wireless MWD instrument |
| 01/01/2014 | CN203374270U Plunger oil well weighing flow meter |
| 01/01/2014 | CN203374269U Drilling rig bypass process device |
| 01/01/2014 | CN203374268U Coal mine ground stress horizontal orientation device convenient to push |
| 01/01/2014 | CN203374267U High-temperature high-pressure miniaturization communication adaptive logger instrument |
| 01/01/2014 | CN203374266U Longitudinal multi-pole full-hole specific retention measurement conductivity sensor |
| 01/01/2014 | CN203374222U Water detection drill pipe |
| 01/01/2014 | CN203374221U Telescopic water exploitation drill rod |
| 01/01/2014 | CN103492672A Downhole pressure compensating device |
| 01/01/2014 | CN103492670A Apparatus and method for increasing the ultimate recovery of natural gas contained in shale and other tight gas reservoirs |
| 01/01/2014 | CN103490220A High temperature and high pressure seal electric connector for preventing softened plastic from flowing |
| 01/01/2014 | CN103485772A Well logging equipment, method and device |
| 01/01/2014 | CN103485768A Method for forming acoustic logging curve |
| 01/01/2014 | CN103485767A Cabled transmission device for connecting threaded joint |
| 01/01/2014 | CN103485766A Wireless two-way transmission device for signals between main shaft and movable sleeve in underground rotary steering drilling tool |
| 01/01/2014 | CN103485765A Oil-water distribution tester and oil-water distribution test method |
| 01/01/2014 | CN103485764A Calibrating device and calibrating method for borehole clinometer |
| 01/01/2014 | CN103485763A Monitoring environmental conditions of an underwater installation |
| 01/01/2014 | CN103485762A Visual simulation shale micro-crack plugging capacity test system and method |
| 01/01/2014 | CN103485761A Deepwater drilling riser state monitoring system and working method thereof |
| 01/01/2014 | CN103485760A Full-scale coal bed wellbore stability evaluation method |
| 01/01/2014 | CN103485759A Oil-gas well hydraulically-created-fracture expansion visualization experiment method and oil-gas well hydraulically-created-fracture expansion visualization experiment device |
| 01/01/2014 | CN103485758A Method and device for performing fitting inversion by utilizing plurality of pieces of data to realize complex lithologic interpretation |
| 01/01/2014 | CN103485757A 重量体积计量分离器 Volumetric weight separator |
| 01/01/2014 | CN103485755A Drilling process of anhydrous sodium sulfate mine well |
| 01/01/2014 | CN103485747A Automatic pressure-adding borehole sealing device and method |
| 01/01/2014 | CN103485713A Method for correcting position of target point in communicated well drilling process |
| 01/01/2014 | CN102852513B Continuous oil measuring device of integrating instrument of U-shaped pipe |
| 01/01/2014 | CN102031962B System and method for measuring downhole micro-flow of oil and gas well |
| 01/01/2014 | CN101806210B System using solenoid groups to achieve electromagnetic guiding distance measurement while drilling |
| 12/31/2013 | US8616288 Velocity analyzer for objects traveling in pipes |