Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › 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)
12/2003
12/11/2003WO2003102372A1 Method and apparatus for a high resolution downhole spectrometer
12/11/2003WO2003102371A1 Method and apparatus for effective well and reservoir evaluation without the need for well pressure history
12/11/2003US20030226690 In situ reactor
12/11/2003US20030226663 Method for in-situ analysis of formation parameters
12/11/2003CA2488451A1 Method and apparatus for a high resolution downhole spectrometer
12/11/2003CA2485492A1 Apparatus and method for analyzing well fluid sag
12/09/2003US6662146 Methods for performing reservoir simulation
12/09/2003US6661000 Method for measuring absorbed and interstitial fluids
12/09/2003US6659200 Actuator assembly and method for actuating downhole assembly
12/09/2003US6659197 Method for determining drilling fluid properties downhole during wellbore drilling
12/09/2003US6659177 Reduced contamination sampling
12/09/2003US6658930 Metal pad for downhole formation testing
12/09/2003CA2197960C Method and apparatus for changing bits while drilling with a flexible shaft
12/04/2003WO2003100219A1 Fluid sampling methods and apparatus for use in boreholes
12/04/2003WO2003100218A1 Deployment of underground sensors
12/04/2003WO2001023829A3 Determining optimal well locations from a 3d reservoir model
12/04/2003US20030225522 Method and apparatus for effective well and reservoir evaluation without the need for well pressure history
12/04/2003US20030223069 Method and apparatus for a derivative spectrometer
12/04/2003US20030223068 Method and apparatus for a high resolution downhole spectrometer
12/04/2003US20030221826 Bailer discharging device and method of using thereof
12/03/2003CN2589676Y Drilling mud sample gas online sampler
12/02/2003US6655458 Formation testing instrument having extensible housing
12/02/2003US6655457 Method for use in sampling and/or measuring in reservoir fluid
11/2003
11/27/2003WO2003098639A1 Method and apparatus for mwd formation testing
11/27/2003WO2003098196A1 Method for evaluating capillary pressure curve of an underground deposit rocks based on rock cuttings measurements
11/27/2003WO2003098191A2 Liquid sampling device
11/27/2003WO2003098000A1 Method for determining by strata reserve quality of an oil well
11/27/2003WO2003097999A1 Mwd formation tester
11/27/2003WO2003097988A2 Equalizer valve and method of use
11/27/2003US20030217845 Fluid sampling methods and apparatus for use in boreholes
11/26/2003CN1458998A Formation testing apparatus with axially and spirally mounted prots when drilling
11/25/2003CA2138134C Method and apparatus for pressure, volume and temperature measurement and characterization of subsurface formations
11/20/2003WO2003095985A1 Method and probe for measuring hydraulic conductivity of soil
11/20/2003US20030216898 Method for modelling fluid flows in a multilayer porous medium crossed by an unevenly distributed fracture network
11/20/2003US20030214879 Formation testing while drilling data compression
11/18/2003US6648083 Method and apparatus for measuring mud and formation properties downhole
11/13/2003WO2003034175A3 Methods and systems for offering and servicing financial instruments
11/13/2003WO2002066791A8 Downhole sensing and flow control utilizing neural networks
11/13/2003US20030212495 Real-time method for maintaining formation stability and monitoring fluid-formation interaction
11/13/2003US20030209364 Method and device for determining the nature of a formation at the head of drilling tool
11/13/2003US20030209066 Method and apparatus for measuring fluid density downhole
11/11/2003US6644423 Wireline system for multiple direct push tool usage
11/11/2003CA2235204C Soil sampler for taking multiple soil samples from horizontal boreholes
11/06/2003US20030206026 Potentiometric sensor for wellbore applications
11/06/2003US20030205376 Means and Method for Assessing the Geometry of a Subterranean Fracture During or After a Hydraulic Fracturing Treatment
11/06/2003US20030205375 Treatment well tiltmeter system
11/06/2003US20030205083 Monitoring of downhole parameters and tools utilizing fiber optics
11/05/2003CN2584827Y Deep sea hand-held type manipulator sequence fidelity sampler
11/04/2003US6640908 Apparatus and method for formation testing while drilling with minimum system volume
11/04/2003US6640625 Method and apparatus for measuring fluid density downhole
11/04/2003CA2093600C Borehole stressed packer inflation system
10/2003
10/30/2003WO2003089759A1 Method and apparatus for determining drill string movement mode
10/30/2003WO2003089758A1 System and method for interpreting drilling data
10/30/2003WO2003089757A1 Means and method for assessing the geometry of a subterranean fracture during or after a hydraulic fracturing treatment
10/30/2003WO2003089751A2 Method for improving drilling depth measurements
10/30/2003WO2003029602A3 Methods for determining characteristics of earth formations
10/29/2003EP1357403A2 A method of generating electric power in a wellbore
10/29/2003EP1357402A2 A light actuated system for use in a wellbore
10/29/2003EP1357401A2 A system for controlling a downhole device in a wellbore
10/29/2003EP1356189A1 Method to evaluate the hydrocarbon potential of sedimentary basins from fluid inclusions
10/28/2003US6637524 Non-rotating sensor assembly for measurement-while-drilling applications
10/22/2003EP1355170A2 A method of controlling production from a wellbore
10/22/2003EP1355169A2 Method and apparatus for controlling chemical injection of a surface treatment system
10/22/2003EP1355168A2 A method for avoiding injection induced unintentional fracture growth
10/22/2003EP1355167A2 An injection well with a fibre optic cable to measure fluorescence of bacteria present
10/22/2003EP1355166A2 An injection evaluation system
10/16/2003US20030192692 Method and system for wireless communications for downhole applications
10/15/2003EP1352155A1 Determining the in situ effective mobility and the effective permeability of a formation
10/15/2003EP1352154A1 Determining the pvt properties of a hydrocarbon reservoir fluid
10/15/2003EP1352153A1 Determining the viscosity of a hydrocarbon reservoir fluid
10/15/2003EP1352152A1 Retrieving a sample of formation fluid in a cased hole
10/15/2003EP1352151A1 Measuring the in situ static formation temperature
10/14/2003US6631763 Method and system for testing a borehole by the use of a movable plug
10/09/2003WO2003083249A2 Apparatus for sampling drill hole cuttings
10/08/2003CN2578525Y Well logging instrument for increasing resolution rate of acoustic log
10/08/2003CN1123761C Strain-sensing device
10/02/2003WO2003081233A1 Method and apparatus for simulating pvt parameters
10/02/2003US20030187582 Method of assaying downhole occurrences and conditions
10/02/2003US20030183422 Retrieving a sample of formation fluid in as cased hole
10/02/2003US20030182997 Apparatus for sampling drill hole cuttings
10/02/2003CA2502627A1 Method and apparatus for simulating pvt parameters
10/01/2003EP0991845B1 Earth formation surveying device
10/01/2003CN1445432A Subdevice with changable module
09/2003
09/30/2003US6627873 Down hole gas analyzer method and apparatus
09/25/2003WO2003078794A1 Method of modelling the production of hydrocarbons by a subsurface deposit which are subject to depletion
09/25/2003US20030182093 Controlling azimuthally varying continuity in geologic models
09/25/2003US20030182061 Method and apparatus for simulating PVT parameters
09/24/2003EP1347150A1 Apparatus with exchangeable modules
09/24/2003CN2575375Y Improved switch valve for filling conveyor
09/24/2003CN2575302Y Arbor wheel type internal combustion engine
09/24/2003CN1122236C Apparatus and method of well management
09/23/2003US6625548 Measuring device for determining physical and chemical properties of gases, liquids and solids
09/23/2003US6622554 Open hole formation testing
09/18/2003US20030176973 Determining the viscosity of a hydrocarbon reservoir fluid
09/18/2003US20030173115 Sub apparatus with exchangeable modules
09/18/2003US20030173079 Method for characterising parameters of wells, well bottom zone and formation, and device for carrying out said method
09/17/2003EP1200709B1 Method for determining a fluid contact level in a formation
09/16/2003US6619402 System for enhancing fluid flow in a well
09/16/2003US6619395 Methods for determining characteristics of earth formations
09/11/2003US20030168257 Realtime control of a drilling system using the output from combination of an earth model and a drilling process model
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