Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Whipstock casing milling system










Image Number 2 for United States Patent #6880631.

This invention relates to a whipstock casing milling system and, more particularly, to such a system in which a window mill is secured to a whipstock so that the system may be run into a well, set and operated to open a window in a casing during a single trip. The milling system of the present invention comprises a protrusion (B) provided on the whipface of the whipstock wherein the protrusion (B) forms an extension of a relatively steep ramp surface (45) of the whipface so as to reduce damage to said surface (45) at a juncture (A) of said surface (45) with a relatively shallow ramp surface or parallel surface (46) during use of the system. The protrusion (B) thereby avoids an undercutting of a casing and a thinning of the whipstock.








 
 
  Recently Added Patents
Image forming apparatus, information processing method, and storage medium for generating screen information
Thermosensitive recording medium
UV liquid treatment system
Asynchronous distributed de-duplication for replicated content addressable storage clusters
Low offset, fast response voltage controlled current source and controlling method thereof
Optical multiplexer/demultiplexer
Providing user interfaces and window previews for hosted applications
  Randomly Featured Patents
Method and system for interfacing with a computer output device
Fluid flow control in waterflood
Method for treating disruptive behavior disorders with xanomeline
Tunable drum
Precision pen height control for micro-scale direct writing technology
Fluid dispensing system
Video disc player having caddy lockout mechanism
Portable electric hammer drill
Video capture device
Battery chargers for secondary cells, and or batteries