Resources Contact Us Home
Acoustic logging-while-drilling tools having a hexapole source configuration and associated logging methods

Image Number 3 for United States Patent #8125848.

Multipole acoustic logging-while-drilling (LWD) tools and associated methods are disclosed herein. In some embodiments, the disclosed acoustic LWD tool comprises a transmitter array and at least one receiver array. The transmitter array generates acoustic waves with an excitation pattern having a cutoff frequency greater than about 3 kHz. The receiver array is spaced apart from the transmitter array and is configured to detect said acoustic waves. Some of the disclosed method embodiments comprise: generating multipole acoustic waves in a fluid-filled borehole using an excitation pattern with a cutoff frequency greater than about 3 kHz; selectively detecting acoustic waves that propagate with said excitation pattern; and determining an acoustic shear wave slowness for a formation penetrated by the borehole.

  Recently Added Patents
Power supply apparatus for light emitting diode
Active gate drive circuit
Method of fabricating CIGS by selenization at high temperature
Portable electronic device holder and tether
Compositions and methods for activating innate and allergic immunity
Digital image processing device and processing method thereof
Integrated circuit devices having conductive structures with different cross sections
  Randomly Featured Patents
Method and system for providing continuous voice and packet data services to a mobile station
Process for producing alkoxyiminoacetamide compounds and intermediates
Container shroud
Lamp head for LED streetlight
Disk drive with airflow channeling enclosure
Compression of sorted value indexes using common prefixes
Method for application authoring employing a pre-certified master application template
Circuit board electrical connector
Mobile meeting and collaboration
Salts of physiologically active and psychoactive alkaloids and amines simultaneously exhibiting bioavailability and abuse resistance