Resources Contact Us Home
Selectively combining segments of at least four acoustic well logging waveforms to automatically measure an acoustic wave parameter

Image Number 11 for United States Patent #4210966.

At least four waveforms representative of sonic waves obtained from an acoustic investigation of a borehole with at least four sonic receivers are combined to automatically measure a parameter of a wave present in the waveforms. The waveforms are derived from sonic receivers which are selectively spaced from each other as well as the sonic transmitter whose sonic pulses caused the sonic waves. Several techniques are described to measure acoustic wave parameters such as the interval travel time of compressional and shear waves for open or cased boreholes. In accordance with one technique a multiple fold correlation process and apparatus are described to measure the acoustic wave parameter.

  Recently Added Patents
Methods of reverse link power control
Transmission apparatus and network protection method
Method for growing group III-nitride crystals in supercritical ammonia using an autoclave
Method and device for determining a set of frequencies that can be used for transmitting information between radio transceivers of a network operating with frequency hopping
Method and system for reciprocal mixing cancellation of wideband modulated blockers
Method for treating rheumatoid arthritis by administering an anti-IL-6 antibody and methotrexate
Nonvolatile semiconductor memory device and method for manufacturing the same
  Randomly Featured Patents
Multi-lumen access port
Passive safety block
Method and system for cleaning an ink jet printhead
Plunger holder
Classifying workload for a service
Multi-function FET masterslice cell
L-buthionine-S-sulfoximine and methods of making
Horse blanket allowing freer movement of a horse in use
Decoding apparatus, processing apparatus and methods therefor
Matrix band for use in dentistry