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
Identifying users of remote sessions
Authorization method for location based services
Image forming system, printing control method, and program
Method and system for imaging a cross section of a specimen
Systems and methods for generating a user profile based customized media guide with user-generated content and non-user-generated content
Chip on chip semiconductor device including an underfill layer having a resin containing an amine-based curing agent
Video editing apparatus
  Randomly Featured Patents
B-pillar for a vehicle
Electro-hydraulic braking system having cold temperature detection and compensation
Method and vessel for the storage of gas
Method and apparatus for creating a virtual data copy
Hindered hydroxyphenylalkanoates of substituted vicinal glycols
Method for feeding a subliming material into a liquid
Recording apparatus
Preinsulated tube end cap, end capped preinsulated tube and method of installing end cap
Needle protective sheath device
Electronic flash photographing system