Resources Contact Us Home
Directional drilling control

Image Number 4 for United States Patent #7823655.

Methods and apparatus for using a quill to steer a hydraulic motor when elongating a wellbore in a direction having a horizontal component, wherein the quill and the hydraulic motor are coupled to opposing ends of a drill string, by monitoring an actual toolface orientation of a tool driven by the hydraulic motor via monitoring a drilling operation parameter indicative of a difference between the actual toolface orientation and a desired toolface orientation, and then adjusting a position of the quill by an amount that is dependent upon the monitored drilling operation parameter.

  Recently Added Patents
Biphotonic photosensitizers, nanoparticles containing the same and their use as drugs
Solid state lighting circuit and controls
System and method for displaying relationships between electronically stored information to provide classification suggestions via inclusion
System and method for deriving cell global identity information
Process to increase selectivity to ethylene in oxygenates-to-olefins conversions
Location-type tagging using collected traveler data
Resolution setting apparatus, resolution setting method, and recording medium recording a resolution setting program when a television is used as a monitor of a computer
  Randomly Featured Patents
Cabriolet vehicle
Binary azeotropic compositions of 1,1,1,2,3,3-hexafluoro-3-methoxypropane with one of trans-1,2-dichloroethylene, cis-1,2-dichloroethylene, 1,1-dichloro-1,2-difluoroethane or 1,2-dichloro-
Display screen with animated user interface
Antenna selection and training using a spatial spreading matrix for use in a wireless MIMO communication system
Multiple gate transistor having fins with a length defined by the gate electrode
Polymorphic forms of a GABAA agonist
Computer based method and system for adjusting page placement on a continuous feed print engine
Crimper startup method and system
Vent for respiratory mask
Indefinite-size variables within an intermediate language