Resources Contact Us Home
Differential energy acoustic measurements of formation characteristic

Image Number 3 for United States Patent #4888740.

A method for acoustically investigating characteristics of formations penetrated by a borehole such as fractures by taking differential Stoneley wave acoustic energy measurements between pairs of receivers of an array of receivers carried by a logging tool. The receivers of each pair all have the same spacing. The energy is that detected by the receivers in response to acoustic pulses generated by a transmitter spaced from the receivers on the tool. The differential energy measurements are stacked to obtain a stacked differential energy log.

  Recently Added Patents
Data transfer operation completion detection circuit and semiconductor memory device provided therewith
Techniques for forming a contact to a buried diffusion layer in a semiconductor memory device
Pattern forming method using printing device and method of manufacturing liquid crystal display device using the same
Enhancement of semiconducting photovoltaic absorbers by the addition of alkali salts through solution coating techniques
5-HT.sub.3 receptor modulators, methods of making, and use thereof
Method and composition for attracting arthropods by volatizing an acid
Method and assembly for determining the temperature of a test sensor
  Randomly Featured Patents
Compensation tank for a hydraulic motor vehicle brake system
Diaper with elastic means
Straight bore butterfly valve carburetor with accelerator assist module
Driveshaft sealing for a marine propulsion system
Power device with trenches having wider upper portion than lower portion
Process for the preparation of sodium fosphenytoin
High frequency epidural neuromodulation catheter for effectuating RF treatment in spinal canal and method of using same
Fresh fruit packaging
Vehicle front lower grille
Operation controlling apparatus