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Class Information
Number: 367/86
Name: Communications, electrical: acoustic wave systems and devices > Borehole testing
Description: Subject matter wherein information or intelligence pertaining to the walls of a passageway through the earth is obtained from a device which travels through the passageway and emits acoustic waves into the medium contained within the passageway (e.g., air, water) which are reflected from the walls back to the device and detected.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7116182 |
Method and system for downhole clock having compensation |
Oct. 3, 2006 |
| 7062072 |
Methods of producing images of underground formations surrounding a borehole |
Jun. 13, 2006 |
| 7046165 |
Method for collecting geological data ahead of a drill bit |
May. 16, 2006 |
| 7042802 |
Determination of stress characteristics of earth formations |
May. 9, 2006 |
| 6976392 |
Atomic clock for downhole applications |
Dec. 20, 2005 |
| 6973993 |
Methods and apparatus of suppressing tube waves within a bore hole and seismic surveying systems incorporating same |
Dec. 13, 2005 |
| 6965849 |
Method of designing geophysical surveys |
Nov. 15, 2005 |
| 6951262 |
Method and apparatus for suppressing waves in a borehole |
Oct. 4, 2005 |
| 6915875 |
Acoustic isolator for downhole applications |
Jul. 12, 2005 |
| 6837332 |
Method and apparatus for cancellation of unwanted signals in MWD acoustic tools |
Jan. 4, 2005 |
| 6837105 |
Atomic clock for downhole applications |
Jan. 4, 2005 |
| 6782970 |
Acoustic source using a shaftless electrical hammer |
Aug. 31, 2004 |
| 6776255 |
Methods and apparatus of suppressing tube waves within a bore hole and seismic surveying systems incorporating same |
Aug. 17, 2004 |
| 6739423 |
Acoustic logging tool |
May. 25, 2004 |
| 6739692 |
Ink jet recording apparatus |
May. 25, 2004 |
| 6697710 |
Gas pipe explorer robot |
Feb. 24, 2004 |
| 6614718 |
Device and method for seismic drill hole measuring |
Sep. 2, 2003 |
| 6456566 |
Use of minor borehole obstructions as seismic sources |
Sep. 24, 2002 |
| 6351991 |
Determining stress parameters of formations from multi-mode velocity data |
Mar. 5, 2002 |
| 6002639 |
Sensor configuration for nulling reverberations to image behind reflective layers |
Dec. 14, 1999 |
| 5996726 |
System and method for determining the distribution and orientation of natural fractures |
Dec. 7, 1999 |
| 5995447 |
System and method for processing acoustic signals to image behind reflective layers |
Nov. 30, 1999 |
| 5963508 |
System and method for determining earth fracture propagation |
Oct. 5, 1999 |
| 5841734 |
Rotating acoustic transducer head for cement bond evaluation tool |
Nov. 24, 1998 |
| 5834710 |
Acoustic pulse gun assembly |
Nov. 10, 1998 |
| 5619475 |
Method of predicting mechanical failure in formation utilizing stress derivatives which measure formation nonlinearity |
Apr. 8, 1997 |
| 5594176 |
Scan assembly and method for transferring power and data across a rotary interface |
Jan. 14, 1997 |
| 5555220 |
Slickline conveyed wellbore seismic receiver |
Sep. 10, 1996 |
| 5544127 |
Borehole apparatus and methods for measuring formation velocities as a function of azimuth, and interpretation thereof |
Aug. 6, 1996 |
| 5502686 |
Method and apparatus for imaging a borehole sidewall |
Mar. 26, 1996 |
| RE34975 |
Ultrasonic measurement apparatus |
Jun. 20, 1995 |
| 5413174 |
Signal transmission through deflected well tubing |
May. 9, 1995 |
| 5377160 |
Transmitter and receiver to radially scan the cementing conditions in cased wells |
Dec. 27, 1994 |
| 5354956 |
Ultrasonic measurement apparatus |
Oct. 11, 1994 |
| 5318129 |
Method and device for setting up sondes against the wall of a cased well |
Jun. 7, 1994 |
| 5317111 |
Ultrasonic measurement apparatus |
May. 31, 1994 |
| 5276656 |
Method for fluid identification and evaluation within wellbores using ultrasonic scanning |
Jan. 4, 1994 |
| 5275038 |
Downhole reeled tubing inspection system with fiberoptic cable |
Jan. 4, 1994 |
| 5229552 |
Method and apparatus for the downhole measurement of elastic rock properties |
Jul. 20, 1993 |
| 5218573 |
Well perforation inspection |
Jun. 8, 1993 |
| 5214251 |
Ultrasonic measurement apparatus and method |
May. 25, 1993 |
| 5170378 |
Hydraulic impedance test method |
Dec. 8, 1992 |
| 5138585 |
Method for fluid identification and evaluation within wellbores using ultrasonic scanning |
Aug. 11, 1992 |
| 5130950 |
Ultrasonic measurement apparatus |
Jul. 14, 1992 |
| 5103428 |
Method for optimizing well production rates |
Apr. 7, 1992 |
| 5093811 |
Fracture investigation by resonance sweeping technique |
Mar. 3, 1992 |
| 5081613 |
Method of identification of well damage and downhole irregularities |
Jan. 14, 1992 |
| 5060751 |
Pneumatic wall-locking geophone system |
Oct. 29, 1991 |
| 5010527 |
Method for determining the depth of a hydraulic fracture zone in the earth |
Apr. 23, 1991 |
| 5005666 |
Attenuation of borehole tube-waves |
Apr. 9, 1991 |
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