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
5-lipoxygenase-activating protein (FLAP) inhibitors
Power-saving receiver
Information retrieval system, information retrieval method, and information retrieval program
Methods of saccharification of polysaccharides in plants
Ventilated vacuum commutation structure
Package for a medicinal product
Transmission apparatus and network protection method
  Randomly Featured Patents
Method and apparatus for controlling a fluid actuated system
Command and control architecture for a digital sound
Bubble separating apparatus
Automatic priming system for a marine engine
Rotary directional control valve
System for automatically opening basket doors of a top loading horizontal axis automatic washer
Ionomeric polyester compositions containing organoclays, and method
Combined storage bag and ski seat
Synthesis of directed sequence polymer compositions and antibodies thereof for the treatment of protein conformational disorders
Antibody against von Willebrand factor cleaving enzyme and assay system using the same