Resources Contact Us Home
Sonic well logging for radial profiling

Image Number 4 for United States Patent #6611761.

A method for determining a radial profile of sonic shear velocity of formations surrounding a fluid-containing borehole, including: suspending a logging device in the borehole; transmitting sonic energy from the logging device to establish flexural waves in the formation; receiving sonic energy from the flexural waves and producing, from the received sonic energy, measurement signals at a number of frequencies; determining, at each frequency, the flexural wave velocity in the formation; deriving sonic compressional and shear velocities of the substantially undisturbed formation; deriving sonic compressional velocity of the borehole fluid; and determining the radial profile of sonic shear velocity from the derived compressional and shear velocities of the substantially undisturbed formation, the derived compressional velocity of the borehole fluid, and the flexural wave velocities.

  Recently Added Patents
Display device and method of manufacturing the same
Shape memory polymers formed by self-crosslinking of copolymers
Performing a cyclic redundancy checksum operation responsive to a user-level instruction
Flexible pouch
Audit planning
Parasitic element compensation circuit and method for compensating for the parasitic element
Method, apparatus and article for detection of transponder tagged objects, for example during surgery
  Randomly Featured Patents
Ballistic aerosol marking venturi pipe geometry for printing onto a transfuse substrate
Pushback storage system
Josephson junctions made with thin superconductive layers
Accessory system with integrated multiband antenna
Stator for synchronous motors having more than two poles
Electrical light circuit for doll house and other miniature displays
Bicycle handle shifter grip
Ceramic binder and use thereof
Two stage compression ignition fuel ignitor
Topical spray compositions