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

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)
10/2006
10/25/2006	CN1851232A Deuterium-deuterium controllable compensating neutron well logging instrument during drilling
10/25/2006	CN1851231A Movable matural gamma scale well during drilling
10/25/2006	CN1281845C System for carrying well equipment in the well
10/24/2006	US7126332 Downhole high resolution NMR spectroscopy with polarization enhancement
10/24/2006	US7124819 Downhole fluid pumping apparatus and method
10/24/2006	US7124596 Downhole sorption cooling and heating in wireline logging and monitoring while drilling
10/19/2006	WO2005056725A3 Superior extraction performance using sulfuric acid
10/18/2006	EP1712733A1 Method for designing formation tester for a well
10/18/2006	CN2828312Y Spring pressing type water obtaining apparatus
10/18/2006	CN1280621C Support rotating undisturbed soil sampling device
10/18/2006	CN1280523C Method for determining the viscosity of a hydrocarbon reservoir fluid
10/18/2006	CN1280514C Earth formation surveying method
10/17/2006	US7121347 Liquid sampler
10/17/2006	US7121338 Probe isolation seal pad
10/17/2006	CA2250090C Method of assaying compressive strength of rock
10/17/2006	CA2250030C Method of assaying downhole occurrences and conditions
10/12/2006	WO2006037079A3 Apparatus and method for wireline imaging in nonconductive muds
10/11/2006	EP1710576A1 Autocalibrated multiphase fluid characterization using extrema of time series
10/11/2006	EP1709294A2 Probe isloation seal pad
10/11/2006	EP1444416B1 Use of cutting velocities for real time pore pressure and fracture gradient prediction
10/11/2006	CN2825936Y Multifunctional oil sampling plug
10/10/2006	US7117734 Method for measuring formation properties with a time-limited formation test
10/10/2006	CA2385385C Method for fast and extensive formation evaluation
10/05/2006	US20060219001 Displacement instrument
10/04/2006	EP1706584A2 Measuring device and drilling device for deep drillings
10/04/2006	EP1095205B1 Method of determining in-situ stresses in an earth formation
10/04/2006	CN2823556Y Electronic clock controlled closed sampler
10/04/2006	CN2823555Y Lithology density logging instrument
10/04/2006	CN2823554Y Nuclear magnetic resonance logging instrument
10/04/2006	CA2541623A1 Process for determining the level of at least one given gas contained in drilling mud and associated device and installation
10/03/2006	US7114579 System and method for interpreting drilling date
10/03/2006	US7114562 Apparatus and method for acquiring information while drilling
10/03/2006	US7114385 Apparatus and method for drawing fluid into a downhole tool
10/03/2006	CA2426968C Method and apparatus for subsurface fluid sampling
10/03/2006	CA2326489C Drillstring with stabilisers for re-entering a primary wellbore
10/03/2006	CA2250483C Well system
10/03/2006	CA2202328C Method and apparatus for measuring formation pressure
09/2006
09/28/2006	US20060214098 Fluid flow measurement using optical fibres
09/28/2006	US20060213290 Unattended ground sensor assembly
09/27/2006	CN2821158Y Storage type radioactive property spectrum measuring instrument
09/27/2006	CN2821157Y Digital focusing microball logging instrument
09/27/2006	CN2821156Y Array induction logging instrument
09/26/2006	US7112783 Neutron measurement method for determining porosity of a formation surrounding a borehole
09/26/2006	US7111685 Downhole sampling apparatus and method
09/26/2006	US7111682 Method and apparatus for gas displacement well systems
09/21/2006	US20060207761 Methods of quantifying gas content of a gas-sorbed formation solid
09/20/2006	EP1703076A1 Method for measuring formation properties with a formation tester
09/20/2006	EP1702284A2 Contamination estimation using fluid analysis models
09/20/2006	CN1836155A Method and apparatus for a downhole refractometer and attenuated reflectance spectrometer
09/20/2006	CN1276167C Multi-frequency acoustic proe combined detection method of optical cable transmission signal and down-well instrument
09/19/2006	CA2389123C Apparatus and method for measuring formation pressure using a nozzle
09/19/2006	CA2322884C A non-rotating sensor assembly for measurement-while-drilling
09/18/2006	CA2539015A1 Method for designing formation tester for a well
09/14/2006	WO2006096452A2 Downhole uses of piezoelectric motors
09/14/2006	CA2764396A1 Radon transformations for removal of noise from seismic data
09/14/2006	CA2600032A1 Downhole uses of piezoelectric motors
09/13/2006	EP1701001A1 Integrated reservoir optimization
09/13/2006	EP1700003A2 High temperature circuits
09/12/2006	US7104343 Soil drill rod extractor
09/12/2006	US7104320 Method of optimizing production of gas from subterranean formations
09/07/2006	US20060198742 Downhole uses of piezoelectric motors
09/07/2006	US20060196670 Well testing system
09/06/2006	CN1828013A The use of lamb waves in cement bond logging
09/06/2006	CN1828012A System and method of downhole thermal property measurement
09/06/2006	CN1828011A Method for simulating oil-water two-phase cable formation testing
09/05/2006	US7100707 Stabilized soil core samples and method for preparing same
09/05/2006	US7100689 Sensor apparatus and method of using same
09/02/2006	CA2536446A1 The use of lamb waves in cement bond logging
08/2006
08/31/2006	US20060192554 Downhole high resolution NMR sprectroscopy with polarization enhancement
08/31/2006	US20060191684 Assembly for determining thermal properties of a formation while drilling or perforating
08/30/2006	CN2811978Y Apparatus Instrument for cutting, crushing and degassing rock chip
08/30/2006	CN1826455A Downhole pv tests for bubble point pressure
08/29/2006	US7099811 Method of determining by numerical simulation the restoration conditions, by the fluids of a reservoir, of a complex well damaged by drilling operations
08/29/2006	US7096976 Drilling formation tester, apparatus and methods of testing and monitoring status of tester
08/29/2006	US7096746 Method for determining the power of a test specimen, measuring device, and power test bench for the test specimen
08/29/2006	CA2417448C Metal pad for downhole formation testing
08/29/2006	CA2337703C An improved coring bit and method for obtaining a material core sample
08/28/2006	CA2535054A1 Method for measuring formation properties with a formation tester
08/24/2006	WO2006089258A1 Use of the dynamic downhole measurements as lithology indicators
08/24/2006	WO2005113937A9 Methods and apparatus for measuring formation properties
08/24/2006	US20060185430 Piezocomposite transducer for a downhole measurement tool
08/23/2006	EP1693548A2 Method and apparatus for treating a well
08/23/2006	EP1693547A2 Method and apparatus for well testing
08/23/2006	CN2809215Y Oil well production profile logging tool using microwave resonance method
08/23/2006	CN1823210A Method and apparatus for determining an optimal pumping rate based on a downhole dew point pressure determination
08/22/2006	US7093674 Drilling formation tester, apparatus and methods of testing and monitoring status of tester
08/17/2006	US20060180302 Groundwater sampling device
08/16/2006	EP1691032A2 Integrated reservoir optimization
08/16/2006	EP1691031A2 Integrated reservoir optimization
08/16/2006	EP1689972A1 Methods for geomechanical fracture modeling
08/16/2006	EP1689831A2 Superior extraction performance using sulfuric acid
08/16/2006	CN2806762Y Double-probe eccentering arm
08/16/2006	CN1270052C Method for obtaining survey of leakage and structum integrity by finite downhole pressure test
08/15/2006	US7092822 Method of evaluating the capillary pressure curve of an underground deposit rocks based on rock cuttings measurements
08/15/2006	US7091719 Method for determining properties of formation fluids
08/15/2006	US7090012 Method and apparatus for subsurface fluid sampling
08/15/2006	CA2411566C Modified tubular equipped with a tilted or transverse magnetic dipole for downhole logging
08/15/2006	CA2406857C Method and apparatus for determining reservoir characteristics
08/15/2006	CA2268444C Apparatus and method for drilling boreholes
08/10/2006	US20060174702 Transmitting Data through a Downhole Environment

1 ... 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 ... 119