Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Mean strain ratio analysis method and system for detecting drill bit failure and signaling surface operator










Image Number 16 for United States Patent #6817425.

An apparatus and method for monitoring and reporting downhole bit failure. Sensors are located on a sub assembly (which is separate from the drill bit itself but located above it on the drill string). Strain measurements are taken from the sensors to detect changes in induced bending and axial stresses which are related to a roller cone bearing failure. As a cone begins to fail, the average share of the total load on the bit that the failing cone can support changes, which causes a change in the bending strain induced by the eccentric loading of the cone.








 
 
  Recently Added Patents
Systems and methods for automated institutional processing of payments
Evaluating programmer efficiency in maintaining software systems
Mobility management in a communications system
Method and apparatus for providing charging status information to subscriber of communication service
Distributed IP-PBX signal processing
Support for a parameterized query/view in complex event processing
Digital processing method and system for determination of optical flow
  Randomly Featured Patents
Nonvolatile semiconductor memory drive, information processing apparatus and management method of storage area in nonvolatile semiconductor memory drive
Solvent for ink, method for producing solvent for ink, ink for inkjet recording, method for producing ink for inkjet recording, ink cartridge, and method for producing ink cartridge
Oxoimidazoquinoxalines
Process for preparation of polyesters with improved molecular weight from glycols containing a vicinal secondary hydroxyl group
Electromagnetic actuating unit
Modular analyzer of digital signal traffic
Carton for dispensing personal care articles
Output driver circuit utilizing floating wells
Performing ultrasound ranging in the presence of ultrasound interference
System for a direct image transmission by spectral coding