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Class Information
Number: 181/103
Name: Acoustics > Geophysical or subsurface exploration > Well logging > Programmed or timer-controlled
Description: Subject matter including means operative upon initiation to transmit or receive acoustical waves through a given cycle of operations.










Patents under this class:

Patent Number Title Of Patent Date Issued
8125848 Acoustic logging-while-drilling tools having a hexapole source configuration and associated logging methods Feb. 28, 2012
7636052 Apparatus and method for monitoring acoustic energy in a borehole Dec. 22, 2009
7301472 Big bore transceiver Nov. 27, 2007
6868038 Seismic method of performing the time picking step Mar. 15, 2005
6757218 Semi-passive two way borehole communication apparatus and method Jun. 29, 2004
6724687 Characterizing oil, gasor geothermal wells, including fractures thereof Apr. 20, 2004
6661737 Acoustic logging tool having programmable source waveforms Dec. 9, 2003
6619423 Measuring device for measuring the elastic properties of a surface structure Sep. 16, 2003
6470996 Wireline acoustic probe and associated methods Oct. 29, 2002
6366531 Method and apparatus for acoustic logging Apr. 2, 2002
6131694 Vertical seismic profiling in a drilling tool Oct. 17, 2000
6006855 Borehole seismic detector system employing stabilizers Dec. 28, 1999
5724308 Programmable acoustic borehole logging Mar. 3, 1998
5579283 Method and apparatus for communicating coded messages in a wellbore Nov. 26, 1996
5164548 Method and apparatus for ultrasonic scanning of a borehole having improved sensor array and timing circuit Nov. 17, 1992
5159578 Apparatus for rotating a transducer assembly of a borehole logging tool in a deviated borehole Oct. 27, 1992
5157392 Telemetry network for downhole multistation seismic recording tools Oct. 20, 1992
5051962 Computerized truck instrumentation system Sep. 24, 1991
5044462 Focused planar transducer Sep. 3, 1991
5022485 Method and apparatus for detonation of distributed charges Jun. 11, 1991
4793435 Apparatus for generating multiple seismic signals in a wellbore Dec. 27, 1988
4709234 Power-conserving self-contained downhole gauge system Nov. 24, 1987
4701892 Downhole casing inspection system Oct. 20, 1987
4699241 Method and apparatus for detonation of distributed charges Oct. 13, 1987
4662209 Course length measurement May. 5, 1987
4660638 Downhole recorder for use in wells Apr. 28, 1987
4513403 Data encoding and synchronization for pulse telemetry Apr. 23, 1985
4481612 Seismic surveying using shear waves Nov. 6, 1984
4415895 Well logging data transmission system Nov. 15, 1983
4390878 Two receiver noise loggers Jun. 28, 1983
4390975 Data transmission in a drill string Jun. 28, 1983
4383308 Acoustic well logging device for detecting shear and compressional waves May. 10, 1983
4349896 Digital acoustic logging method and apparatus Sep. 14, 1982
4223398 Method for acoustic signal detection Sep. 16, 1980
4210966 Selectively combining segments of at least four acoustic well logging waveforms to automatically measure an acoustic wave parameter Jul. 1, 1980
4210967 Method and apparatus for determining acoustic wave parameters in well logging Jul. 1, 1980
4147222 Acoustical underwater communication system for command control and data Apr. 3, 1979
4140994 Method and apparatus for acoustic well logging of earth boreholes Feb. 20, 1979
4066994 Well data telemetry by explosions Jan. 3, 1978
4042907 Apparatus for preventing cycle skipping in processing acoustic well-logging signals Aug. 16, 1977
4012712 System for telemetering well logging data Mar. 15, 1977
3962674 Acoustic logging using ultrasonic frequencies Jun. 8, 1976











 
 
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