Resources Contact Us Home
Multi-function apparatus for adding a branch well sealed liner and connector to an existing cased well at low cost

Image Number 4 for United States Patent #6533040.

A multi-function apparatus designated as a "Liner Stub Assembly", run in and set in an existing cased well at the end of a work pipe string is used to add a liner-equipped branch well to an existing cased well in a way which provides full access to both wells. Pre-fabricated mobile straight tubular connectors (Liner Stubs) are installed and sealed by on-board explosive means which accurately cut a window of pre-determined shape and dimensions in the existing well casing and weld to it the Liner Stub's stop collar to make downhole a leak-proof tubular junction of the two wells, by means of such short connectors.

  Recently Added Patents
Treatment of influenza
Nitrogen-doped carbon-supported cobalt-iron oxygen reduction catalyst
Solid-state imaging apparatus, method of manufacturing solid-state imaging apparatus, and electronic apparatus
Method of estimating remaining constant current/constant voltage charging time
Portable electric circular saw
Protein purification
Display apparatus, a method for a display control, and program
  Randomly Featured Patents
Coffee spray head
Method for enhancing memory or correcting memory deficiency with arylamidopyrazolidines and arylamidodiazabicycloalkanes
Transmitter and SSB signal generation method
Acetoxymethyl penam compounds as .beta.-lactamase inhibitors
Blackberry plant named `Driscoll Carmel`
Semiconductor device and method for fabricating the same
Electronic devices with composite atomic barrier film and process for making same
Method of manufacturing head suspension for disk drive, and semi-finished suspension
Hand-held massager
Electro-optic device