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Class Information
Number: 73/152.36
Name: Measuring and testing > Borehole or drilling (e.g., drill loading factor, drilling rate, rate of fluid flow) > Fluid flow measuring or fluid analysis > Rate of fluid flow > Packer or deflector detail
Description: Subject matter including either (a) a means for constraining a stream of the fluid flow to or from a certain stratum and wherein significance is attributed to the constraining means or (b) means for constraining the fluid to flow within a certain flow path within the borehole and wherein significance is attributed to the constraining means.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7000697 |
Downhole measurement apparatus and technique |
Feb. 21, 2006 |
| 6951262 |
Method and apparatus for suppressing waves in a borehole |
Oct. 4, 2005 |
| 6915686 |
Downhole sub for instrumentation |
Jul. 12, 2005 |
| 6865934 |
System and method for sensing leakage across a packer |
Mar. 15, 2005 |
| 6296056 |
Subsurface measurement apparatus, system, and process for improved well drilling, control, and production |
Oct. 2, 2001 |
| 6269683 |
System and method for pressure testing the fittings and seals associated with the communication lines of a well tool |
Aug. 7, 2001 |
| 6148912 |
Subsurface measurement apparatus, system, and process for improved well drilling control and production |
Nov. 21, 2000 |
| 6116340 |
Downhole build-up pressure test using coiled tubing |
Sep. 12, 2000 |
| 5767400 |
Hydraulic test system mounted with borehole television set for simultaneous observation in front and lateral directions |
Jun. 16, 1998 |
| 5052220 |
Apparatus for measurements related to fluid flow in a borehole |
Oct. 1, 1991 |
| 4852401 |
Well fluid flow velocity measuring apparatus including a spinner cartridge assembly |
Aug. 1, 1989 |
| 4827765 |
Motor driven spinner flow meter |
May. 9, 1989 |
| 4800752 |
Flow restricting logging tool and method |
Jan. 31, 1989 |
| 4771635 |
Fluid injector for tracer element well borehole injection |
Sep. 20, 1988 |
| 4581927 |
Self-contained bore hole flow measurement system and method therefor |
Apr. 15, 1986 |
| 4576042 |
Flow basket |
Mar. 18, 1986 |
| 4566317 |
Borehole flow meter |
Jan. 28, 1986 |
| 4507552 |
Method and apparatus for determining flow characteristics within a well |
Mar. 26, 1985 |
| 4484626 |
Pneumatic packer |
Nov. 27, 1984 |
| 4452076 |
Well logging tool |
Jun. 5, 1984 |
| 4442711 |
Device for measuring the flow of fluid in a well |
Apr. 17, 1984 |
| 4441361 |
Method and apparatus for measurement of fluid density and flow rates in multi-phase flow regimes |
Apr. 10, 1984 |
| 4033187 |
Well flow measuring apparatus |
Jul. 5, 1977 |
| 3982433 |
Spinner tool for boreholes |
Sep. 28, 1976 |
| 3960015 |
Well flow sensing apparatus |
Jun. 1, 1976 |
| 3934467 |
Spinner flowmeter with isolated bearings |
Jan. 27, 1976 |
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