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Class Information
Number: 73/152.43
Name: Measuring and testing > Borehole or drilling (e.g., drill loading factor, drilling rate, rate of fluid flow) > During drilling
Description: Subject matter wherein the determination of the physical characteristic of the borehole, the casing, or the drill rigging is made during the formation of or the enlargement of an elongated hole in the earth in situ by dislocating a solid material of the earth.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7587936 |
Apparatus and method for determining drilling fluid acoustic properties |
Sep. 15, 2009 |
| 7576543 |
Apparatus and method for resistivity measurements during rotational drilling |
Aug. 18, 2009 |
| 7546209 |
Formation dip geo-steering method |
Jun. 9, 2009 |
| 7465426 |
System for degassing muds and for analysing the gases contained in the muds |
Dec. 16, 2008 |
| 7441609 |
Method of decreasing the disintegration of shale-containing cuttings and drilling fluid therefor |
Oct. 28, 2008 |
| 7327145 |
Azimuthally focused electromagnetic measurement tool |
Feb. 5, 2008 |
| 7299132 |
Method and system for pre-drill pore pressure prediction |
Nov. 20, 2007 |
| 7250768 |
Apparatus and method for resistivity measurements during rotational drilling |
Jul. 31, 2007 |
| 7222681 |
Programming method for controlling a downhole steering tool |
May. 29, 2007 |
| 7207215 |
System, method and apparatus for petrophysical and geophysical measurements at the drilling bit |
Apr. 24, 2007 |
| 7137459 |
Silicate drilling fluid and method of drilling a well therewith |
Nov. 21, 2006 |
| 7128149 |
Apparatus and methods for improved fluid displacement in subterranean formations |
Oct. 31, 2006 |
| 7114579 |
System and method for interpreting drilling date |
Oct. 3, 2006 |
| 7082821 |
Method and apparatus for detecting torsional vibration with a downhole pressure sensor |
Aug. 1, 2006 |
| 7004021 |
Method and system for detecting conditions inside a wellbore |
Feb. 28, 2006 |
| 6997270 |
Compounds and method for generating a highly efficient membrane in water-based drilling fluids |
Feb. 14, 2006 |
| 6986282 |
Method and apparatus for determining downhole pressures during a drilling operation |
Jan. 17, 2006 |
| 6976392 |
Atomic clock for downhole applications |
Dec. 20, 2005 |
| 6957709 |
Apparatus and method for cleaning and sealing a well borehole portion for formation evaluation |
Oct. 25, 2005 |
| 6915875 |
Acoustic isolator for downhole applications |
Jul. 12, 2005 |
| 6837105 |
Atomic clock for downhole applications |
Jan. 4, 2005 |
| 6749030 |
Integrated transmitter surveying while boring entrenching powering device for the continuation of a guided bore hole |
Jun. 15, 2004 |
| 6636159 |
Borehole logging apparatus for deep well drillings with a device for transmitting borehole measurement data |
Oct. 21, 2003 |
| 6591702 |
Method for identifying sources of rapidly released contaminants at contaminated sites |
Jul. 15, 2003 |
| 6588266 |
Monitoring of downhole parameters and tools utilizing fiber optics |
Jul. 8, 2003 |
| 6553825 |
Torque swivel and method of using same |
Apr. 29, 2003 |
| 6530154 |
Method to detect deviations from a wellplan while drilling in the presence of magnetic interference |
Mar. 11, 2003 |
| 6499545 |
Miniature directional indication instrument |
Dec. 31, 2002 |
| 6467341 |
Accelerometer caliper while drilling |
Oct. 22, 2002 |
| 6422325 |
Method for reducing borehole erosion in shale formations |
Jul. 23, 2002 |
| 6410862 |
Device and method for measuring the flow rate of drill cuttings |
Jun. 25, 2002 |
| 6327539 |
Method of determining drill string stiffness |
Dec. 4, 2001 |
| 6205851 |
Method for determining drill collar whirl in a bottom hole assembly and method for determining borehole size |
Mar. 27, 2001 |
| 6192748 |
Dynamic orienting reference system for directional drilling |
Feb. 27, 2001 |
| 6068394 |
Method and apparatus for providing dynamic data during drilling |
May. 30, 2000 |
| 6065332 |
Method and apparatus for sensing and displaying torsional vibration |
May. 23, 2000 |
| 6006844 |
Method and apparatus for simultaneous coring and formation evaluation |
Dec. 28, 1999 |
| 5999891 |
Method and system for detecting the precession of an element of a drill string |
Dec. 7, 1999 |
| 5730234 |
Method for determining drilling conditions comprising a drilling model |
Mar. 24, 1998 |
| 5691475 |
Method for measuring the propagation velocity of ultrasonic acoustic waves through rock fragments |
Nov. 25, 1997 |
| 5654503 |
Method and apparatus for improved measurement of drilling conditions |
Aug. 5, 1997 |
| 5465798 |
Drill automation control system |
Nov. 14, 1995 |
| 5458207 |
Method and an equipment for adjusting rock drilling |
Oct. 17, 1995 |
| 5435176 |
Hazardous waste characterizer and remediation method and system |
Jul. 25, 1995 |
| 5402677 |
Method of determining drillstring bottom hole assembly vibrations |
Apr. 4, 1995 |
| 5358058 |
Drill automation control system |
Oct. 25, 1994 |
| 5321981 |
Methods for analysis of drillstring vibration using torsionally induced frequency modulation |
Jun. 21, 1994 |
| 5305830 |
Method and device for carrying out measurings and/or servicings in a wellbore or a well in the process of being drilled |
Apr. 26, 1994 |
| 5272916 |
Methods of detecting and measuring in-situ elastic anisotropy in subterranean formations |
Dec. 28, 1993 |
| 5181172 |
Method for predicting drillstring sticking |
Jan. 19, 1993 |
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