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
Control service for relational data management
Data processor with virtual machine management
Method for parking or exiting a parking bay and for avoiding a collision of a vehicle, and corresponding assistance systems and vehicle
Polarity switching member of dot inversion system
Low-staining room temperature curable coating composition
Method for cutting C--Mn steel with a fiber laser
Inductive signal transfer system for computing devices
  Randomly Featured Patents
Doctor blade apparatus
Truck vehicle
Color conversion apparatus, and color conversion method
Amine derivatives, processes for their production and their use
Operating device having force feedback
Soybean cultivar 9452199547779
Strontium-substituted apatite coating
Heat-sealable and peelable laminated packaging construction
Field emission device employing a sequential emitter electrode formation method
Device for coupling a light source and an optical waveguide