| 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) |
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| 10/21/2004 | US20040206495 Mitigating risk by using fracture mapping to alter formation fracturing process |
| 10/21/2004 | DE202004013350U1 Groundwater sampling device for obtaining uncontaminated water samples from an aquifer has a shuttle device that connects to a sampling station via a valve arrangement to obtain a sample of uncontaminated water |
| 10/20/2004 | CN2649774Y 钻井取样装置 Drilling sampling device |
| 10/16/2004 | CA2463413A1 Testing drill packer |
| 10/14/2004 | US20040203160 Method and device for analyzing the CO2 contained in a drilling fluid |
| 10/13/2004 | CN1536198A Method for measuring downhole pressure in the course of drilling operation and its equipment |
| 10/07/2004 | WO2004085797A1 System and method for measuring formation properties through cased wellbores |
| 10/07/2004 | WO2004085795A1 Method to measure injector inflow profiles |
| 10/07/2004 | US20040196038 Downhole NMR processing |
| 10/06/2004 | EP1352151B1 Measuring the in situ static formation temperature |
| 10/06/2004 | CN2646382Y Perforation and formation testing and flowing thribble working test oil equipment of jet injector |
| 10/06/2004 | CN1170146C Drilling fluid quantitative fluorescent logging method |
| 10/05/2004 | US6801857 Method and device for determining the quality of an oil well reserve |
| 09/30/2004 | WO2004083833A1 A method and apparatus for downhole quantification of methane using near infrared spectroscopy |
| 09/30/2004 | WO2004038178A9 Apparatus and method for cleaning and sealing a well borehole portion for formation evaluation |
| 09/30/2004 | US20040190589 Determination of virgin formation temperature |
| 09/29/2004 | EP1462605A1 Method of modelling a hydrocarbon mixture by subdividing it in pseudocomponents |
| 09/29/2004 | EP1461821A1 Method for measuring adsorbed and interstitial fluids |
| 09/29/2004 | CN2644675Y Poured polymer well subsurface sampler |
| 09/29/2004 | CN1168890C Hydraulic spray pump with sampler |
| 09/28/2004 | US6799117 Predicting sample quality real time |
| 09/28/2004 | US6798518 Method and apparatus for a derivative spectrometer |
| 09/28/2004 | CA2154846C Method and apparatus for testing wells using dual coiled tubing |
| 09/23/2004 | WO2004081344A2 A method and apparatus for pumping quality control through formation rate analysis |
| 09/23/2004 | WO2004081334A2 Formation testing and sampling apparatus and methods |
| 09/23/2004 | US20040184938 Bladder pump for borehole sampling |
| 09/23/2004 | US20040182606 Method and system for predicting performance of a drilling system for a given formation |
| 09/23/2004 | US20040182147 System and method for measuring compaction and other formation properties through cased wellbores |
| 09/21/2004 | US6795773 Well completion method, including integrated approach for fracture optimization |
| 09/21/2004 | US6792798 Ultrasonic cylindrical resonator to facilitate bubble point pressure measurement |
| 09/16/2004 | US20040177955 Method of controlling the direction of propagation of injection fractures in permeable formations |
| 09/15/2004 | EP1457778A1 Method and device for analysing the CO2 content of a borehole fluid |
| 09/15/2004 | EP1456621A1 Method for the detection of performance, measuring device, and performance test stand for a test piece |
| 09/15/2004 | EP1247002B1 Formation fluid side-wall sampler |
| 09/14/2004 | US6791469 Method of drilling in response to looking ahead of the bit |
| 09/11/2004 | CA2458962A1 Method and device for analysing the co2 content in a drilling fluid |
| 09/10/2004 | WO2004076816A1 Estimation of formation characteristics in wells |
| 09/10/2004 | WO2004076815A1 Determining an inflow profile of a well |
| 09/09/2004 | US20040173351 Formation testing and sampling apparatus and methods |
| 09/07/2004 | US6788066 Method and apparatus for measuring resistivity and dielectric in a well core in a measurement while drilling tool |
| 09/07/2004 | US6787758 Wellbores utilizing fiber optic-based sensors and operating devices |
| 09/07/2004 | US6786086 Determining the in situ effective mobility and the effective permeabilty of a formation |
| 09/07/2004 | CA2236753C Method of controlling development of an oil or gas reservoir |
| 09/02/2004 | WO2004074625A1 Radially adjustable downhhole devices & methods for same |
| 09/01/2004 | EP1212514B1 System for enhancing fluid flow in a well |
| 09/01/2004 | CN2637729Y Lifting type path stratigraphic tester |
| 08/26/2004 | US20040163808 Methods of downhole testing subterranean formations and associated apparatus therefor |
| 08/26/2004 | US20040163803 Methods of downhole testing subterranean formations and associated apparatus therefor |
| 08/24/2004 | CA2278080C Formation pressure measurement with remote sensors in cased hole |
| 08/19/2004 | WO2004070425A1 Method for computing complexity, confidence and technical maturity indices for reservoir evaluations |
| 08/19/2004 | WO2003067018A3 Well system |
| 08/19/2004 | US20040160858 Method and apparatus for determining downhole pressures during a drilling operation |
| 08/19/2004 | US20040159434 Providing a low pressure condition in a wellbore region |
| 08/19/2004 | US20040159432 Creating an underbalance condition in a wellbore |
| 08/19/2004 | US20040159149 Sensor apparatus and method of using same |
| 08/19/2004 | CA2514718A1 Method for computing complexity, confidence and technical maturity indices for reservoir evaluations |
| 08/18/2004 | CN2634114Y Micro electrode micro ball focusing hole diameter integrated data logging instrument |
| 08/17/2004 | CA2233437C Apparatus for early evaluation formation testing |
| 08/17/2004 | CA2206806C Formation evaluation tool and method for use of the same |
| 08/17/2004 | CA2206726C Automatic downhole pump assembly and method for use of the same |
| 08/12/2004 | WO2004067913A1 Permanently eccentered formation tester |
| 08/12/2004 | WO2004011763A3 Mechanical bladder pump |
| 08/12/2004 | US20040158406 Method for computing complexity, confidence and technical maturity indices for reservoir evaluations |
| 08/11/2004 | EP1444416A1 Use of cutting velocities for real time pore pressure and fracture gradient prediction |
| 08/11/2004 | CN2632308Y Sampling valve of producing well top |
| 08/10/2004 | CA2228439C Method and apparatus for testing and sampling open-hole oil and gas wells |
| 08/05/2004 | US20040149437 Methods of downhole testing subterranean formations and associated apparatus therefor |
| 08/05/2004 | US20040149044 Displacement and force sensor |
| 08/04/2004 | EP1352155B1 Determining the in situ effective mobility and the effective permeability of a formation |
| 08/04/2004 | EP1269149A4 Method and apparatus for determining fluid viscosity |
| 08/04/2004 | EP1159510B1 Wellbore primary barrier and related systems |
| 08/03/2004 | US6769296 Apparatus and method for measuring formation pressure using a nozzle |
| 07/29/2004 | US20040148148 Well planning using seismic coherence |
| 07/29/2004 | US20040148147 Modeling in-situ reservoirs with derivative constraints |
| 07/29/2004 | US20040144533 Method and apparatus for fast pore pressure measurement during drilling operations |
| 07/28/2004 | EP1441238A2 Modeling in-situ reservoirs with derivative constraints |
| 07/28/2004 | CN2628712Y Oil well side-wall core barrel |
| 07/28/2004 | CN1515785A Equipment and method for defining drilling mode and using optimized formation to make assess measurement |
| 07/28/2004 | CA2456600A1 Bladder pump for borehole sampling |
| 07/27/2004 | US6768106 Method of kick detection and cuttings bed buildup detection using a drilling tool |
| 07/27/2004 | US6768105 Methods and apparatus for downhole fluids analysis |
| 07/27/2004 | US6766854 Well-bore sensor apparatus and method |
| 07/22/2004 | US20040140126 Coring Bit With Uncoupled Sleeve |
| 07/22/2004 | US20040139798 Downhole Determination of Formation Fluid Properties |
| 07/21/2004 | EP1240495A4 Improved method and apparatus for predicting the fluid characteristics in a well hole |
| 07/20/2004 | US6766254 Method for updating an earth model using measurements gathered during borehole construction |
| 07/20/2004 | US6763884 Method for cleaning and sealing a well borehole portion for formation evaluation |
| 07/20/2004 | CA2304323C Deployable sensor apparatus and method |
| 07/15/2004 | WO2004059127A1 Dowhole chemical sensor and method of using same |
| 07/15/2004 | WO2004001352B1 Apparatus and method of monitoring and signaling for downhole tools |
| 07/15/2004 | WO2003098191A3 Liquid sampling device |
| 07/13/2004 | US6761574 Coiled tubing connector |
| 07/13/2004 | US6761062 Borehole testing system |
| 07/13/2004 | CA2299835C Formation fluid sampling apparatus and method |
| 07/13/2004 | CA2234733C Strain-sensing device |
| 07/08/2004 | WO2001094749A8 Real-time method for maintaining formation stability |
| 07/08/2004 | US20040129874 Determining fluid chemistry of formation fluid by downhole reagent injection spectral analysis |
| 07/08/2004 | US20040129070 Formation fluid sampling apparatus and method |
| 07/07/2004 | CN1511219A Method of controlling direction of propagation of injection fractures in permeable formations |
| 07/07/2004 | CN1510435A Method and apparatus for collecting layer character by nuclear magnetic resonance measure |