Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Systems and methods for automated institutional processing of payments
Mechanical and moisture protection apparatus for electronic devices
ESD protection device and method for producing the same
Wideband multi-channel receiver with fixed-frequency notch filter for interference rejection
Method of manufacturing semiconductor devices using ion implantation
Semiconductor device
Illumination apparatus
  Randomly Featured Patents
Surgical laser tip apparatus with alignment assembly
Drying oil soap for intaglio inks
Apparatus and method for recovering spent lime for use as a nutritional flowing agent for poultry and animal feeds
Toilet
Circuit and method of converting a floating point number to a programmable fixed point number
Wallboard bundling tape and method
Flat-type fluorescent lamp and liquid crystal display device having the same
Approach section for a bowling alley
Process for controlling operation of a flotation cell
Floor stripping composition and method