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
Automatically enabling the forwarding of instant messages
Apparatus and methods for distributing and storing electronic access clients
Quality control scheme for multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems
Nonvolatile memory controller with two-stage error correction technique for enhanced reliability
Message processing engine with a virtual network interface
Information processing apparatus connectable to a server and a printer
Decoder architecture systems, apparatus and methods
  Randomly Featured Patents
Semiconductor memory and controller with time-shared mode for row address, column address and data mask signals inputted via address terminals
Methods for conducting and playing a lottery game
Finger loop for a beverage bottle
Apparatus for use in the measurement of the flow rate of fluid flow
System for automatically testing a fluid specimen
Diaphragm assembly for fluid powered diaphragm pumps
Plunger with anti-splash shield
Process for the production of crosslinked siloxanes by disproportionation
Luminous stick
Flavoring dispenser