| 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) |
|---|
| 06/08/2011 | CN101021149B Well logging magnetic suspension turbine flowmeter |
| 06/08/2011 | CA2688869A1 Electro-magnetic oil extraction |
| 06/03/2011 | WO2011065810A1 A sample container |
| 06/03/2011 | WO2011043890A3 Formation testing |
| 06/03/2011 | CA2778313A1 Probabilistic earth model for subterranean fracture simulation |
| 06/02/2011 | US20110130966 Method for well testing |
| 06/01/2011 | EP1188265B1 Method and apparatus for determining position in a pipe |
| 06/01/2011 | CN201851118U On-line sampling device of liquid with multi-phase flow |
| 06/01/2011 | CN201851117U Quick sampling system of deep hole gas |
| 06/01/2011 | CN201851116U Positive-pressure jet spiral sampling drill bit |
| 06/01/2011 | CN201851115U Simulation box for heterogeneous reservoir |
| 06/01/2011 | CN201851107U Telescoping ram |
| 06/01/2011 | CN201851106U Probe tube type formation gamma measurement-while-drilling (MWD) system |
| 06/01/2011 | CN201851105U Oil well tester |
| 06/01/2011 | CN1828012B System and method of downhole thermal property measurement |
| 06/01/2011 | CN102080540A Spectrum fluid identification nipple of formation tester |
| 06/01/2011 | CN102080539A Mineral exploration method adopting rotaary and crossed type mineral exploration network |
| 05/31/2011 | US7953585 Integrated reservoir optimization |
| 05/31/2011 | US7950277 Apparatus for actuating a pressure delivery system of a fluid sampler |
| 05/30/2011 | CA2686699A1 Selecting and annotating well logs |
| 05/26/2011 | WO2011061662A1 Methods for optimizing petroleum reservoir analysis |
| 05/26/2011 | WO2011060494A1 System for analysing gas from strata being drilled under high mud flows |
| 05/26/2011 | WO2011020017A3 Method of measuring multi-phase fluid flow downhole |
| 05/26/2011 | WO2009117504A3 Management of measurement data being applied to reservoir models |
| 05/26/2011 | CA2781548A1 System for analysing gas from strata being drilled under high mud flows |
| 05/26/2011 | CA2781465A1 Methods for optimizing petroleum reservoir analysis |
| 05/25/2011 | CN201843610U Gas sample collector at oil-gas well mouth |
| 05/25/2011 | CN201843609U Automatic geological logging rock waste sampling and cleaning device |
| 05/25/2011 | CN201843608U Interwell potential chromatography imaging system on drill |
| 05/25/2011 | CN201843605U Split piston of oil logging tool |
| 05/25/2011 | CN102071933A Method and device for sampling produced fluid of oil reservoir for microbial flooding |
| 05/25/2011 | CN102071932A Acoustic system structure of acoustic velocity-segmented cement bond logging tool and logging method |
| 05/25/2011 | CN102071931A Eight-arm omnibearing three-dimensional lateral logging method and logging instrument |
| 05/25/2011 | CN102071930A Multi-stage cylindrical barrel sand filling tube device for simulating two-dimensional rock core |
| 05/25/2011 | CN102071929A Method for generating dolomite reservoir geochemical plate |
| 05/25/2011 | CN102071928A Method for identifying lithology of three-dimensional volcanic rock |
| 05/25/2011 | CN102071926A Method and device for measuring full-hole annular pressure and method and device for controlling same |
| 05/25/2011 | CN102071923A Successive elution method and device for cores as well as equipment formed by device |
| 05/25/2011 | CN101169035B Erecting light-supplying device for adjustable drilling television imager |
| 05/24/2011 | US7946357 Drill bit with a sensor for estimating rate of penetration and apparatus for using same |
| 05/24/2011 | US7946340 Method and apparatus for orchestration of fracture placement from a centralized well fluid treatment center |
| 05/24/2011 | US7946166 Method for actuating a pressure delivery system of a fluid sampler |
| 05/24/2011 | CA2482943C Means and method for assessing the geometry of a subterranean fracture during or after a hydraulic fracturing treatment |
| 05/19/2011 | WO2011019565A3 Reservoir architecture and connectivity analysis |
| 05/19/2011 | US20110114385 Brine Salinity From Sound Speed |
| 05/19/2011 | US20110114310 Downhole formation tester |
| 05/18/2011 | CN201835861U Safety device at roof of oilfield logging instrument |
| 05/18/2011 | CN201835828U Dipulse neutron gamma-ray spectrum logging unit |
| 05/18/2011 | CN201835816U Flexible joint of spherical connecting structure |
| 05/18/2011 | CN201835815U iCAN (industrial controller area network) protocol-based comprehensive logging interface system |
| 05/18/2011 | CN201835814U Polymer shearing property testing device |
| 05/18/2011 | CN102061912A Four-antenna cyclic transmitting control circuit |
| 05/18/2011 | CN102061911A Method for measuring wall thickness of downhole casing |
| 05/18/2011 | CN102061910A Method for establishing waterflooding extraction predictable physical model of sandstone oil deposit |
| 05/17/2011 | US7942202 Continuous fibers for use in well completion, intervention, and other subterranean applications |
| 05/17/2011 | CA2716414A1 Consistent dip estimation for seismic imaging |
| 05/17/2011 | CA2602513C Obtaining and evaluating downhole samples with a coring tool |
| 05/12/2011 | WO2011054111A1 Electrically conductive oil base drilling fluids containing carbon nanotubes |
| 05/12/2011 | WO2011054085A1 High efficiency fluid pumping apparatus and method |
| 05/12/2011 | US20110108280 Method of testing a drilling riser connection |
| 05/12/2011 | CA2788984A1 High efficiency fluid pumping apparatus and method |
| 05/11/2011 | EP2320214A2 Multi-Channel Source Assembly for Downhole Spectroscopy |
| 05/11/2011 | EP2320213A2 Multi-Channel Detector Assembly for Downhole Spectroscopy |
| 05/11/2011 | EP2320027A1 Movable filter assembly for downhole spectroscopy |
| 05/11/2011 | EP2320026A1 A method and apparatus for a downhole micro-sampler |
| 05/11/2011 | CN201829349U Connecting structure of elastic nested honeycomb capacitor fixing seat |
| 05/11/2011 | CN201826836U Audio frequency vibration head for sampling drill |
| 05/11/2011 | CN201826835U Rock debris image acquisition and analysis device |
| 05/11/2011 | CN201826830U Logging device based on RS485 system data bus |
| 05/11/2011 | CN102057133A Geochemical surveillance of gas production from tight gas fields |
| 05/11/2011 | CN102052077A Oil well wax precipitation detection rod |
| 05/11/2011 | CN102052076A System for monitoring components of shaft fluid of H2S/CO2-containing gas field and analysis method thereof |
| 05/11/2011 | CN102052075A Sampling device, system for carrying out field sampling in oil field, method and application thereof |
| 05/11/2011 | CN102052074A Method for determining rock electricity parameters of digitalized core |
| 05/11/2011 | CN102052073A Sand-filled pipe combination device simulating two-dimensional drill core |
| 05/11/2011 | CN102052072A Sand-filled pipe device simulating two-dimensional drill core and provided with circular truncated cone shaped cylinder body |
| 05/11/2011 | CN102052071A Frustum cylinder-shaped near wellbore zone shear simulation device with sand prevention compacted sand bodies |
| 05/11/2011 | CN102052070A Complex lithology clastic rock stratum constituent logging processing method |
| 05/10/2011 | US7938199 Measurement while drilling tool with interconnect assembly |
| 05/10/2011 | US7938181 Method and composition for enhancing coverage and displacement of treatment fluids into subterranean formations |
| 05/10/2011 | US7938175 Drilling, perforating and formation analysis |
| 05/06/2011 | CA2718452A1 Multi-channel source assembly for downhole spectroscopy |
| 05/06/2011 | CA2718449A1 Multi-channel detector assembly for downhole spectroscopy |
| 05/05/2011 | WO2011005920A3 Borehole stress module and methods for use |
| 05/05/2011 | WO2010116228A3 In-situ evaluation of reservoir sanding and fines migration and related completion, lift and surface facilities design |
| 05/05/2011 | WO2009114508A3 Data gathering, transmission, integration and interpretation during coiled tubing well testing operations |
| 05/05/2011 | US20110100623 High efficiency fluid pumping apparatus and method |
| 05/05/2011 | CA2777900A1 A system for testing cement |
| 05/04/2011 | CN201818306U Electronic control explosive sampling switch device |
| 05/04/2011 | CN201818305U Oil-test burning arm |
| 05/04/2011 | CN201818303U Module type sound wave logging instrument scale device |
| 05/04/2011 | CN201818262U Semi-closed pipe thin wall surface coring apparatus |
| 05/04/2011 | CN102042015A Device and method for collecting coal sample |
| 05/04/2011 | CN102042014A Multistage-cylinder near well-bore zone shearing simulation device with three layers of compacted sand bodies |
| 05/04/2011 | CN102042013A Near wellbore area cutting simulation device for combined cylinder body with three layers of compacted sand bodies |
| 05/04/2011 | CN102042012A Multistage-cylinder near well-bore zone shearing simulation device |
| 05/04/2011 | CN102042011A Method for constructing pseudo nuclear magnetic T2 spectrum by using conventional logging data |
| 05/04/2011 | CN102042010A Method for determining development position of fractured-vuggy carbonate reservoir |
| 05/04/2011 | CN102042009A Array induction logging coil system for measuring formation resistivity |
| 05/04/2011 | CN102042008A Lithologic density short-spacing data acquisition processing thick film circuit |