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Class Information
Number: 73/152.28
Name: Measuring and testing > Borehole or drilling (e.g., drill loading factor, drilling rate, rate of fluid flow) > Fluid flow measuring or fluid analysis > With sampling > Downhole
Description: Subject matter wherein the apparatus for the determination of a characteristic of the borehole, the casing, or the drill rigging is located within the borehole while the measurement is being made.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7594434 |
Downhole tool system and method for use of same |
Sep. 29, 2009 |
| 7526953 |
Methods and apparatus for the downhole characterization of formation fluids |
May. 5, 2009 |
| 7493954 |
Systems and methods for installation, design and operation of groundwater monitoring systems in boreholes |
Feb. 24, 2009 |
| 7445043 |
System and method for detecting pressure disturbances in a formation while performing an operation |
Nov. 4, 2008 |
| 7379819 |
Reservoir sample chain-of-custody |
May. 27, 2008 |
| 7377169 |
Apparatus and methods for acoustically determining fluid properties while sampling |
May. 27, 2008 |
| 7360597 |
Method and apparatus for gas displacement well systems |
Apr. 22, 2008 |
| 7252145 |
Method and apparatus for gas displacement well systems |
Aug. 7, 2007 |
| 7210344 |
Method for measuring formation properties with a time-limited formation test |
May. 1, 2007 |
| 7210343 |
Method and apparatus for obtaining a micro sample downhole |
May. 1, 2007 |
| 7195063 |
Downhole sampling apparatus and method for using same |
Mar. 27, 2007 |
| 7111682 |
Method and apparatus for gas displacement well systems |
Sep. 26, 2006 |
| 7096976 |
Drilling formation tester, apparatus and methods of testing and monitoring status of tester |
Aug. 29, 2006 |
| 7093674 |
Drilling formation tester, apparatus and methods of testing and monitoring status of tester |
Aug. 22, 2006 |
| 7083009 |
Pressure controlled fluid sampling apparatus and method |
Aug. 1, 2006 |
| 7066281 |
Formation fluid sampling and hydraulic testing tool and packer assembly therefor |
Jun. 27, 2006 |
| 6976535 |
Method of utilizing flowable devices in wellbores |
Dec. 20, 2005 |
| 6964301 |
Method and apparatus for subsurface fluid sampling |
Nov. 15, 2005 |
| 6941804 |
Determining the PVT properties of a hydrocarbon reservoir fluid |
Sep. 13, 2005 |
| 6935425 |
Method for utilizing microflowable devices for pipeline inspections |
Aug. 30, 2005 |
| 6923052 |
Methods to detect formation pressure |
Aug. 2, 2005 |
| 6766703 |
Apparatus and method for enhancing remote sensor performance and utility |
Jul. 27, 2004 |
| 6758090 |
Method and apparatus for the detection of bubble point pressure |
Jul. 6, 2004 |
| 6745833 |
Method of utilizing flowable devices in wellbores |
Jun. 8, 2004 |
| 6702017 |
Apparatus and method for well fluid sampling |
Mar. 9, 2004 |
| 6581454 |
Apparatus for measurement |
Jun. 24, 2003 |
| 6443228 |
Method of utilizing flowable devices in wellbores |
Sep. 3, 2002 |
| 6427530 |
Apparatus and method for formation testing while drilling using combined absolute and differential pressure measurement |
Aug. 6, 2002 |
| 6427529 |
Instrument for surveying the depth and volume of oil and brine in a static fluid column of an oil well |
Aug. 6, 2002 |
| 6408691 |
Well monitoring system |
Jun. 25, 2002 |
| 6378362 |
In-situ Vadose zone remote sensor |
Apr. 30, 2002 |
| 6343507 |
Method to improve the quality of a formation fluid sample |
Feb. 5, 2002 |
| 6272915 |
Dual transmitter multi-capacitance flow meter |
Aug. 14, 2001 |
| 6263730 |
Downhole pump strainer data recording device and method |
Jul. 24, 2001 |
| 6216782 |
Apparatus and method for verification of monophasic samples |
Apr. 17, 2001 |
| 6196064 |
In situ underground sample analyzing probe |
Mar. 6, 2001 |
| 6062073 |
In situ borehole sample analyzing probe and valved casing coupler therefor |
May. 16, 2000 |
| 6000470 |
Self-locking connector |
Dec. 14, 1999 |
| 5922950 |
Depth-discrete sampling port |
Jul. 13, 1999 |
| 5794696 |
Groundwater testing well |
Aug. 18, 1998 |
| 5741962 |
Apparatus and method for analyzing a retrieving formation fluid utilizing acoustic measurements |
Apr. 21, 1998 |
| 5375478 |
Test sample taking arrangement |
Dec. 27, 1994 |
| 5329811 |
Downhole fluid property measurement tool |
Jul. 19, 1994 |
| 5046568 |
Driven groundwater sampling device |
Sep. 10, 1991 |
| 5009100 |
Down hole reservoir fluid sampler |
Apr. 23, 1991 |
| 4962665 |
Sampling resistivity of formation fluids in a well bore |
Oct. 16, 1990 |
| 4905510 |
Method of isolating an oilfield flowline sample for analysis without shearing the sample |
Mar. 6, 1990 |
| 4802143 |
Alarm system for measurement while drilling oil wells |
Jan. 31, 1989 |
| 4799389 |
Tandem sampler actuation device |
Jan. 24, 1989 |
| 4717473 |
Apparatus for time-averaged or composite sampling of chemicals in ground water |
Jan. 5, 1988 |
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