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
Multibranched polymer and method for producing the same
System and method for providing private demand-driven pricing
Pizza stone
Image processing apparatus, image forming system, and computer-readable storage medium
Method and system for checking citations
Pyridazine compounds for controlling invertebrate pests
LED string with a capability to maintain a current path and LED unit thereof
  Randomly Featured Patents
Carbocyclic six-membered ring compounds
Radio-frequency identification device with foam substrate
Microwave water heater
Lung coil for imaging hyper-polarized gas in an MRI scanner
Mask inspection apparatus
Toys having gyroscope-based motion resisting action
Moveable theater seats
Ethylene-responsive transcription coactivators in plants
Work performing member with removable head
Mine roof bolt