| |
 |
|
Class Information
Number: 181/101
Name: Acoustics > Geophysical or subsurface exploration
Description: Subject matter relating to systems for mechanically transmitting or receiving acoustical waves for the purpose of identifying geologic or subsurface structure.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7395897 |
Accelerated weight drop configurable for use as a shear wave seismic energy source and a method of operation thereof |
Jul. 8, 2008 |
| 7284636 |
Accelerated weight drop for use as a seismic energy source and a method of operation thereof |
Oct. 23, 2007 |
| 7216738 |
Acoustic stimulation method with axial driver actuating moment arms on tines |
May. 15, 2007 |
| 7213681 |
Acoustic stimulation tool with axial driver actuating moment arms on tines |
May. 8, 2007 |
| 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 |
| 6782970 |
Acoustic source using a shaftless electrical hammer |
Aug. 31, 2004 |
| 6619423 |
Measuring device for measuring the elastic properties of a surface structure |
Sep. 16, 2003 |
| 6418081 |
System for detection of buried objects |
Jul. 9, 2002 |
| 6209640 |
Method of obtaining improved geophysical information about earth formations |
Apr. 3, 2001 |
| 6089345 |
Elastic wave exploration tool for wells |
Jul. 18, 2000 |
| 6076630 |
Acoustic energy system for marine operations |
Jun. 20, 2000 |
| 6076629 |
Low frequency flextensional acoustic source for underwater use |
Jun. 20, 2000 |
| 6065538 |
Method of obtaining improved geophysical information about earth formations |
May. 23, 2000 |
| 6065562 |
System for imparting compressional and shear waves into the earth |
May. 23, 2000 |
| 6041888 |
Low frequency flextensional acoustic source for underwater use |
Mar. 28, 2000 |
| 5954517 |
Interactive sand box for training |
Sep. 21, 1999 |
| 5811741 |
Apparatus for placing geophones beneath the surface of the earth |
Sep. 22, 1998 |
| 5646379 |
Attentuator for borehole acoustic waves |
Jul. 8, 1997 |
| 5551881 |
Method and system for geophysical and geologic modeling |
Sep. 3, 1996 |
| 5432305 |
Penetrometer acoustic soil sensor |
Jul. 11, 1995 |
| 5408441 |
Method for seismic exploration in artic regions |
Apr. 18, 1995 |
| 5373486 |
Seismic event classification system |
Dec. 13, 1994 |
| H1307 |
Method for continuity logging |
May. 3, 1994 |
| 5170018 |
Method and apparatus for tube-wave suppression |
Dec. 8, 1992 |
| 5131477 |
Method and apparatus for preventing drilling of a new well into an existing well |
Jul. 21, 1992 |
| 5005665 |
Piezoelectric seismic vibration device and method |
Apr. 9, 1991 |
| 4982381 |
Method and device for acquiring and processing signals obtained in wells and particularly in horizontal wells |
Jan. 1, 1991 |
| 4850449 |
Piezoelectric seismic vibration device and method |
Jul. 25, 1989 |
| 4833658 |
Method of seismic prospecting with very high resolution in horizontal boreholes |
May. 23, 1989 |
| 4649524 |
Integrated acoustic network |
Mar. 10, 1987 |
| 4016942 |
Method and apparatus for indicating the position of one well bore with respect to a second well bore |
Apr. 12, 1977 |
|
|
|
