Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Downhole tools










Image Number 3 for United States Patent #7604059.

An improved centralizer is provided for centralization of tubulars such as casings, liners, production tubing, and production screens, in oil/gas wells. Such a centralizer comprises a tubular body, wherein a portion of an outermost surface of the tubular body is formed from a first material, and a portion of, or portion adjacent to, at least one end of the tubular body, and/or a portion of an innermost surface of the tubular body, is formed from at least one second material, in contrast to unitary construction centralizers disclosed by the prior art, and the first material has a lower Young's modulus than the at least one second material.








 
 
  Recently Added Patents
Compositions and methods for concentrating and depleting microorganisms
Modular connector for touch sensitive device
Device for installing conducting components in structures
Rupture resistant system
Administrable compositions
Method of sheet alignment and method of post-processing comprising the same and method of image formation
Digital-to-analog converter and performing method thereof
  Randomly Featured Patents
Oxidative coupling of olefins and aromatics using a rhodium catalyst and a copper(II) redox agent
Rotary electric devices
Contact/via force fill techniques
Hydraulic actuator
Means and method for defining a layout
Recombinant Brucella abortus gene expressing immunogenic protein
Single camel hump die
Transpose table-biased arbitration
Sensing system for controlling air circulation valves in motor vehicles
Device for measuring displacement including a displacement sensor with a detection coil and excitation coils