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
Portable communication terminal, communication method and control program
Vehicle grille
Controller with screen
Method and apparatus for decoding/encoding a video signal with inter-view reference picture list construction
System and method for content delivery
Digital signal processing apparatus, liquid crystal display apparatus, digital signal processing method and computer program
Method for media access controlling and system and method for channel time reservation in distributed wireless personal area network
  Randomly Featured Patents
Shearing machine
Method for producing substituted nitro benzoic acids by oxidation of corresponding nitro toluenes, nitro benzyl alcohols, esters and/or ethers
Method for manufacturing carbon nanotube containing conductive micro wire and sensor including the micro wire
Erectable shelter with collapsible central roof support
Method of forming a rough (high surface area) electrode from Ti and TiN capacitors and semiconductor devices including same
Skinning of progressive cavity apparatus
Device for monitoring thread travel
Method of and means for compensating for the dead time of a gamma camera
Blowout preventer bonnet seal carrier