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Class Information
Number: 367/25
Name: Communications, electrical: acoustic wave systems and devices > Seismic prospecting > Well logging
Description: Subject matter wherein the deflected acoustic waves are detected by means which travels through a passageway in the earth.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7626886 |
P-wave anisotropy determination using borehole measurements |
Dec. 1, 2009 |
| 7617908 |
Downhole seismic source |
Nov. 17, 2009 |
| 7602668 |
Downhole sensor networks using wireless communication |
Oct. 13, 2009 |
| 7602669 |
Tube-wave seismic imaging |
Oct. 13, 2009 |
| 7599251 |
Method for selective bandlimited data acquisition in subsurface formations |
Oct. 6, 2009 |
| 7587936 |
Apparatus and method for determining drilling fluid acoustic properties |
Sep. 15, 2009 |
| 7567485 |
Method and apparatus for borehole sensing |
Jul. 28, 2009 |
| 7554882 |
Methods and systems for calibrating acoustic receivers |
Jun. 30, 2009 |
| 7551516 |
Vertical seismic profiling method utilizing seismic communication and synchronization |
Jun. 23, 2009 |
| 7535795 |
Seismic data acquisition system and method for downhole use |
May. 19, 2009 |
| 7529152 |
Use of an effective tool model in sonic logging data processing |
May. 5, 2009 |
| 7529150 |
Borehole apparatus and methods for simultaneous multimode excitation and reception to determine elastic wave velocities, elastic modulii, degree of anisotropy and elastic symmetry configuratio |
May. 5, 2009 |
| 7518949 |
Shear wave velocity determination using evanescent shear wave arrivals |
Apr. 14, 2009 |
| 7500539 |
Method and apparatus of using crossed magnetic fields for measuring conductivity, permeability and porosity |
Mar. 10, 2009 |
| 7495995 |
Method and apparatus for investigating a borehole with a caliper |
Feb. 24, 2009 |
| 7492664 |
Method for processing acoustic reflections in array data to image near-borehole geological structure |
Feb. 17, 2009 |
| 7471591 |
Method and apparatus for azimuthal logging of shear waves in boreholes using optionally rotatable transmitter and receiver assemblies |
Dec. 30, 2008 |
| 7463550 |
Stoneley radial profiling of formation shear slowness |
Dec. 9, 2008 |
| 7463551 |
Method of generating directional low frequency acoustic signals and reflected signal detection enhancements for seismic while drilling applications |
Dec. 9, 2008 |
| 7460435 |
Acoustic transducers for tubulars |
Dec. 2, 2008 |
| 7457194 |
Discriminating natural fracture- and stress-induced sonic anisotropy using a combination of image and sonic logs |
Nov. 25, 2008 |
| 7453768 |
High-speed, downhole, cross well measurement system |
Nov. 18, 2008 |
| 7447114 |
Non-linear seismic trace matching to well logs |
Nov. 4, 2008 |
| 7433851 |
System and method for inferring geological classes |
Oct. 7, 2008 |
| 7424928 |
Apparatus, system and method for flexibly coupling sensors to a downhole tool |
Sep. 16, 2008 |
| 7424367 |
Method for predicting lithology and porosity from seismic reflection data |
Sep. 9, 2008 |
| 7418865 |
Method and apparatus for ultrasound velocity measurements in drilling fluids |
Sep. 2, 2008 |
| 7414919 |
Method for improving the seismic resolution |
Aug. 19, 2008 |
| 7414918 |
Method for normalizing signals in a cement bond logging tool |
Aug. 19, 2008 |
| 7414405 |
Measurement tool for obtaining tool face on a rotating drill collar |
Aug. 19, 2008 |
| 7411864 |
Method for processing signals in a cement bong logging tool |
Aug. 12, 2008 |
| RE40321 |
Remote reservoir resistivity mapping |
May. 20, 2008 |
| 7336562 |
Sonic logging tool including receiver and spacer structure |
Feb. 26, 2008 |
| 7331386 |
Anchor arm for seismic logging tool |
Feb. 19, 2008 |
| 7301852 |
Methods of generating directional low frequency acoustic signals and reflected signal detection enhancements for seismic while drilling applications |
Nov. 27, 2007 |
| 7283422 |
Systems for low frequency seismic and infrasound detection of geo-pressure transition zones |
Oct. 16, 2007 |
| 7263029 |
System and method for acquiring seismic and micro-seismic data in deviated wellbores |
Aug. 28, 2007 |
| 7259689 |
Transmitting power and telemetry signals on a wireline cable |
Aug. 21, 2007 |
| 7220067 |
Cable splice protector |
May. 22, 2007 |
| 7216737 |
Acoustic isolator between downhole transmitters and receivers |
May. 15, 2007 |
| 7187620 |
Method and apparatus for borehole sensing |
Mar. 6, 2007 |
| 7124818 |
Clamp mechanism for in-well seismic station |
Oct. 24, 2006 |
| 7116182 |
Method and system for downhole clock having compensation |
Oct. 3, 2006 |
| 7061830 |
Transducers coated with anechoic material for use in down hole communications |
Jun. 13, 2006 |
| 7042801 |
System for geophysical prospecting using induce electrokinetic effect |
May. 9, 2006 |
| 7042802 |
Determination of stress characteristics of earth formations |
May. 9, 2006 |
| 7035165 |
Imaging near-borehole structure using directional acoustic-wave measurement |
Apr. 25, 2006 |
| 7032707 |
Acoustic isolator downhole applications |
Apr. 25, 2006 |
| 7028806 |
Acoustic isolator for downhole applications |
Apr. 18, 2006 |
| 7024081 |
Fiber optic cable for use in harsh environments |
Apr. 4, 2006 |
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