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Class Information
Number: 73/152.27
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 > Pressure
Description: Subject matter wherein the determination of the characteristic of the borehole is made by measuring pressure.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7445043 |
System and method for detecting pressure disturbances in a formation while performing an operation |
Nov. 4, 2008 |
| 7438128 |
Identifying zones of origin of annular gas pressure |
Oct. 21, 2008 |
| 7346460 |
Downhole PV tests for bubble point pressure |
Mar. 18, 2008 |
| 7290443 |
Method for measuring formation properties with a time-limited formation test |
Nov. 6, 2007 |
| 7216533 |
Methods for using a formation tester |
May. 15, 2007 |
| 7210344 |
Method for measuring formation properties with a time-limited formation test |
May. 1, 2007 |
| 7080552 |
Method and apparatus for MWD formation testing |
Jul. 25, 2006 |
| 6941804 |
Determining the PVT properties of a hydrocarbon reservoir fluid |
Sep. 13, 2005 |
| 6923052 |
Methods to detect formation pressure |
Aug. 2, 2005 |
| 6843119 |
Apparatus for measuring and recording data from boreholes |
Jan. 18, 2005 |
| 6769296 |
Apparatus and method for measuring formation pressure using a nozzle |
Aug. 3, 2004 |
| 6675914 |
Pressure reading tool |
Jan. 13, 2004 |
| 6550322 |
Hydraulic strain sensor |
Apr. 22, 2003 |
| 6499540 |
Method for detecting a leak in a drill string valve |
Dec. 31, 2002 |
| 6474152 |
Methods and apparatus for optically measuring fluid compressibility downhole |
Nov. 5, 2002 |
| 6413227 |
Method and apparatus for assessment of changes in intracranial pressure |
Jul. 2, 2002 |
| 6389890 |
Hydraulic strain sensor |
May. 21, 2002 |
| 6178815 |
Method to improve the quality of a formation fluid sample |
Jan. 30, 2001 |
| 6000470 |
Self-locking connector |
Dec. 14, 1999 |
| 5983716 |
Method and measuring device for measuring hydrostatic pressure, in particular that of ground water |
Nov. 16, 1999 |
| 5900544 |
System and method for detecting upward growth of a hydraulic subterranean fracture in real time |
May. 4, 1999 |
| 5138877 |
Method and apparatus for intersecting a blowout well from a relief well |
Aug. 18, 1992 |
| 4409825 |
Down hole steam quality measurement |
Oct. 18, 1983 |
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