Resources Contact Us Home
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
Transmission apparatus and network protection method
Apparatus and method for multiplying frequency of a clock signal
Etching composition
Radiation detector array
Device for maneuvering a vehicle using maneuvering moves using at least one trajectory
Soft co-processors to provide a software service function off-load architecture in a multi-core processing environment
Discharge lamp comprising coated electrode
  Randomly Featured Patents
Dual range countershaft transmission
Apparatus and method for ablating liquefaction of materials
Camera with electronic flash device
Process for destroying and removing material from teeth
System and method for integrated waveguide packaging
Solid state circuit breaker
Piston structure for internal combustion engine
Discharge tube driving device and piezoelectric transformer therefor
Vibration attenuating apparatus and method for use on the damper spring of clutch disc
Monitor and methods for characterizing airborne particulates