| 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) |
|---|
| 08/28/2001 | US6282452 Apparatus and method for well management |
| 08/28/2001 | US6281489 Monitoring of downhole parameters and tools utilizing fiber optics |
| 08/28/2001 | US6279392 Method and system for distributed well monitoring |
| 08/23/2001 | DE10008106A1 Quality determination for acquisition and processing of mineral raw material involves optical on-line analysis of drilling material at drilling position to determine composition |
| 08/21/2001 | US6276465 Method and apparatus for determining potential for drill bit performance |
| 08/21/2001 | US6276453 Method and apparatus for forcing an object through the sidewall of a borehole |
| 08/21/2001 | US6276190 Differential total-gas determination while drilling |
| 08/14/2001 | US6275775 Method for determining at least one physico-chemical property of a petroleum fraction |
| 08/14/2001 | US6274865 Analysis of downhole OBM-contaminated formation fluid |
| 08/14/2001 | US6273202 Swab test for determining relative formation productivity |
| 08/08/2001 | EP0764236B1 Use of a sampling apparatus for calibrating electronic mass flow/fraction meters, in a pipeline |
| 08/07/2001 | US6269684 Dynamic fluid loss cell apparatus and method thereof |
| 08/07/2001 | CA2174885C Method of determining gas-oil ratios from producing oil wells |
| 07/31/2001 | US6268911 Monitoring of downhole parameters and tools utilizing fiber optics |
| 07/26/2001 | WO2001053855A1 Resistivity and dielectric constant well core measurement system for measurement while drilling and laboratory |
| 07/24/2001 | CA2244342C A method and apparatus for measuring well characteristics and formation properties |
| 07/19/2001 | WO2001051898A1 Downhole densitometer |
| 07/19/2001 | WO2001051768A2 Formation fluid side-wall sampler |
| 07/18/2001 | EP1116350A1 Drill string telemetry with insulator between receiver and transmitter |
| 07/18/2001 | CN2439544Y Two purpose water injection mandrel for oil well/water well |
| 07/17/2001 | US6261029 Density-enhanced remediation of non-aqueous phase liquid contamination of subsurface environments |
| 07/17/2001 | US6260633 Soil sampling apparatus removably attachable to a vehicle |
| 07/12/2001 | WO2001049973A1 Method and apparatus for downhole production testing |
| 07/04/2001 | EP1112438A1 $i(IN SITU) BOREHOLE SAMPLE ANALYZING PROBE AND VALVED CASING COUPLER THEREFOR |
| 07/03/2001 | US6253848 Method of obtaining improved geophysical information about earth formations |
| 06/28/2001 | WO2001046673A1 Improved method and apparatus for predicting the fluid characteristics in a well hole |
| 06/28/2001 | WO2001046549A1 Three dimensional steerable system |
| 06/26/2001 | US6250848 Process for guidance, containment, treatment, and imaging in a subsurface environment utilizing ferro-fluids |
| 06/26/2001 | US6250138 Determining fluid bubble point pressure using an adjustable choke |
| 06/20/2001 | EP1108114A1 Method and apparatus for anchoring a tool within a cased borehole |
| 06/20/2001 | CN2435515Y Stratified oil production process testing string |
| 06/19/2001 | US6247542 Non-rotating sensor assembly for measurement-while-drilling applications |
| 06/19/2001 | US6247358 Method for the evaluation of shale reactivity |
| 06/07/2001 | WO2001040937A1 Method and program for simulating a physical system using object-oriented programming |
| 06/05/2001 | US6241029 Earth formation surveying device |
| 05/30/2001 | CN2432336Y Leather bag used on collector of annular water detector |
| 05/30/2001 | CN1297101A Non-cable near-distance dynamic parameters logging method for oil well |
| 05/29/2001 | US6238595 Target for testing perforating systems |
| 05/29/2001 | US6237404 Apparatus and method for determining a drilling mode to optimize formation evaluation measurements |
| 05/22/2001 | US6236620 Integrated well drilling and evaluation |
| 05/22/2001 | US6234257 Deployable sensor apparatus and method |
| 05/17/2001 | DE19947214A1 Ram core drilling involves sondes driven in in tandem and connected at target depth with each sonde cylinder bored out and fitted with sample removal opening. |
| 05/16/2001 | CN1065944C Elongated logging and early trial production system for marine petroleum exploration |
| 05/16/2001 | CN1065943C Method and facilities for drilling well, logging and early trial production at same time |
| 05/15/2001 | US6230820 Universal drive point device |
| 05/15/2001 | US6230557 Formation pressure measurement while drilling utilizing a non-rotating sleeve |
| 05/10/2001 | WO2001033045A1 Drilling formation tester, apparatus and methods of testing and monitoring status of tester |
| 05/10/2001 | WO2001033044A1 Drilling formation tester, apparatus and methods of testing and monitoring status of tester |
| 05/10/2001 | CA2376544A1 Drilling formation tester, apparatus and methods of testing and monitoring status of tester |
| 05/09/2001 | CN1294305A Special-state mineral method |
| 05/09/2001 | CN1294296A Quick casting technology for rock dust |
| 05/08/2001 | US6229308 Formation evaluation using magnetic resonance logging measurements |
| 05/08/2001 | US6227296 Method to reduce water saturation in near-well region |
| 05/02/2001 | EP1096104A1 Apparatus and methods of testing and drilling a well |
| 05/02/2001 | EP1095205A1 Method of determining in-situ stresses in an earth formation |
| 05/01/2001 | US6223822 Downhole sampling tool and method |
| 04/25/2001 | EP1094196A1 Method and soil-sampling device for preparing soil samples |
| 04/24/2001 | US6220371 Downhole in-situ measurement of physical and or chemical properties including fluid saturations of cores while coring |
| 04/19/2001 | WO2001027755A1 Method and system for simulating a hydrocarbon-bearing formation |
| 04/19/2001 | WO2001027432A2 Methods and apparatus for making measurements on fluids produced from underground formations |
| 04/17/2001 | US6218662 Downhole carbon dioxide gas analyzer |
| 04/17/2001 | US6216782 Apparatus and method for verification of monophasic samples |
| 04/12/2001 | WO2001025823A1 Method for updating an earth model using measurements gathered during borehole construction |
| 04/11/2001 | EP1091087A2 Measurement port coupler and probe interface |
| 04/10/2001 | US6212948 Apparatus and method to obtain representative samples of oil well production |
| 04/05/2001 | WO2001024099A1 Method for determining a property of a hydrocarbon-bearing formation |
| 04/05/2001 | WO2001023829A2 Determining optimal well locations from a 3d reservoir model |
| 04/05/2001 | DE19959909C1 Recovery of ground samples e.g. when examining abandoned polluted areas, employs pneumatic hammer drill with detachable pointed- and annular-coring tips |
| 04/05/2001 | DE19946287A1 Permeator, for determining hydraulic conductivity of ground, comprises feeding water into bore hole avoiding sludge formation, and electronically controlling the level, |
| 04/03/2001 | US6209640 Method of obtaining improved geophysical information about earth formations |
| 04/03/2001 | US6209636 Wellbore primary barrier and related systems |
| 03/29/2001 | WO2001022050A1 Method and system for extracting, analysing and measuring constituents transported by a bore fluid |
| 03/22/2001 | WO2001020126A2 System for enhancing fluid flow in a well |
| 03/20/2001 | US6202752 Wellbore milling methods |
| 03/14/2001 | EP1082691A1 Improved process for predicting behavior of a subterranean formation |
| 03/14/2001 | CN2423402Y Proving installation while drilling |
| 03/06/2001 | US6196074 Diffusion sampler and method of use |
| 03/06/2001 | US6196064 In situ underground sample analyzing probe |
| 02/27/2001 | US6194216 Isolating additive from sample, placing into cuvette, exposing to ultraviolet light, and measuring count value of fluorescence spectrum at its peak using a spectrometer |
| 02/27/2001 | US6192984 Method of sampling a well using a control valve and/or floating piston |
| 02/20/2001 | US6190092 Density-enhanced remediation of dense non-aqueous phase liquid contamination of subsurface environments |
| 02/20/2001 | US6189612 Subsurface measurement apparatus, system, and process for improved well drilling, control, and production |
| 02/20/2001 | US6189392 Fluid sampling apparatus using floating piston |
| 02/20/2001 | US6189383 Method and apparatus for acoustic logging of fluid density and wet cement plugs in boreholes |
| 02/15/2001 | WO2001011391A1 A method of determining parameters of formations through which a borehole passes |
| 02/14/2001 | EP1076156A2 Early evaluation system for a cased wellbore |
| 02/13/2001 | CA2315482A1 Early evaluation system for cased wellbore |
| 02/08/2001 | WO2001009483A1 Method for determining a fluid contact level in a formation |
| 02/06/2001 | US6182757 Method of sampling a well using an isolation valve |
| 02/06/2001 | US6182753 Well fluid sampling apparatus with isolation valve and check valve |
| 02/01/2001 | WO2000031654A3 Apparatus and method of well management |
| 02/01/2001 | DE19838200C2 Vorrichtung, Verfahren und System zur automatisierten Bodenprobenentnahme The device, method and system for automated soil sampling |
| 01/30/2001 | US6178815 Method to improve the quality of a formation fluid sample |
| 01/23/2001 | US6176325 Moling apparatus and a ground sensing system therefor |
| 01/23/2001 | US6176323 Drilling systems with sensors for determining properties of drilling fluid downhole |
| 01/18/2001 | WO2001004462A1 Anti-wobbling bailer with high speed insertion |
| 01/18/2001 | WO2001004460A1 Sensing device |
| 01/17/2001 | EP1068425A1 Drillstring with stabilisers for re-entering a primary wellbore |
| 01/04/2001 | WO2001000962A1 Cavity stability prediction method for wellbores |
| 01/04/2001 | WO2000053887A3 Wellbore primary barrier and related systems |