Resources Contact Us Home
Horizontal drilling method

Image Number 3 for United States Patent #6109828.

A bore hole support system is formed from a flexible liner that is readily everted within a bore hole and forms a bore hole support system to install a casing in the bore hole while supporting the bore hole walls. After a pilot hole is drilled, the pilot hole is traversed with a reamer to form the pilot hole diameter to a larger diameter for the final bore hole. The flexible liner with the attached casing is everted and pressurized behind the reamer as the reamer traverses the pilot hole to support walls defining the bore hole while pulling the casing into the bore hole. The liner is simply removed from a storage and everting canister and remains with the casing in the bore hole. In certain circumstances, the liner may be coated with a water soluble material so that the casing may be in fluid communication with the bore hole walls when the coating has dissolved.

  Recently Added Patents
Method and apparatus for receiving signals in a MIMO system with multiple channel encoders
Method for dropping packet data, radio communication device, and mobile communication system
Push mechanism for efficiently sending aggregated data items to client
Proton conducting electrolytes with cross-linked copolymer additives for use in fuel cells
Multi-channel memory system including error correction decoder architecture with efficient area utilization
Promoting content
Catalyst and process of hydrocarbon feedstock reformation to hydrogen and carbon monoxide
  Randomly Featured Patents
Image processing system and method of enhancing the quality of an ultrasound image
Ground source heat pump system comprising modular subterranean heat exchange units with multiple parallel secondary conduits
Capacitive pressure transducer
Functional organic-inorganic composite amorphous material and process for its production
Fishing rod holder
Method for preparing hydride configurations and reactive metal surfaces
Electrospray devices for mass spectrometry
Combined mapping, pacing, and defibrillating catheter
Communication method for implantable medical device