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
Multiple output dynamic element matching algorithm with mismatch noise shaping for digital to analog converters
LED lamp for producing biologically-corrected light
Evaporator/absorbers combination, absorption cooling device and associated motor vehicle
Configurable circuitry for solving stochastic problems
Uplink load generation in communication networks
Converting static websites to resolution independent websites in a web development environment
Method and system for securing online identities
  Randomly Featured Patents
Less shear-thinning polyvinyl acetals
Method of fabrication of capacitor and bit-line at same level for 8F2 DRAM cell with minimum bit-line coupling noise
Display device and manufacturing method thereof
Power transfer device with contactless optical encoder and color reflective surface
System and method for auto-failover and version matching of bootloader in an access controller
V-MOS imaging array
Schizophrenia associated gene, proteins and biallelic markers
Electromechanical RF switch activated by external magnetic field
Cassette tape recorder
Rupture disc