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
Lighting fixture
Gas venting system
Composite syringe
Electrical storage element control system for a vehicle
Apparatus for walking and resting upon the water
System and method for displaying security information
Method and apparatus for using layer 4 information in a layer 2 switch in order to support end-to-end (layer 4) flow control in a communications network
  Randomly Featured Patents
Method for controlling storage device controller, storage device controller, and program
Apparatus and method for cutting and spooling a web of paper
High resolution dynamic pulse width modulation
Convertible computer apparatus acting as a desk-top computer or a docking station
Circuit breaker trip unit and method for real-time fault indication
Spring structure for bed mattress
Hose for air-water massager for bathtubs
Process for inserting silicon into zeolite frameworks
Process for producing metal interconnections and product produced thereby