Gravel-packed pipeline and method and apparatus for installation thereof
AssigneeEVI Cherrington Enviromental, Inc.
InventorMartin D. Cherrington
Life of this patent
Estimating the term…
Abstract
A gravel-packed pipeline is formed by inserting a liner pipe having a porous pipe contained therein. A conveyor pipe is attached to the liner pipe for conveying filtering material such as gravel. After positioning the liner pipe, the end of the porous pipe is pushed out and anchored. The liner is removed while the filtering material is conveyed to the hole.
Claims24
Apparatus for placing a porous pipe surrounded by filtering material in a horizontal subsurface hole, comprising:
- a liner pipe for containing the porous pipe during placement of the porous pipe in the hole;
- apparatus for removing the liner pipe from the hole while maintaining the porous pipe in a desired position within the hole;
- and
- a material conveyor pipe coupled to the liner pipe for conveying the filtering material to the hole during removal of the liner pipe.
Apparatus for retrieving hazardous material from a subsurface area comprising:
- a porous pipe disposed substantially parallel to the surface, said porous pipe operable to transport the hazardous material;
- an anchor having protruding sections for holding the porous pipe within the subsurface area;
- a filtering material layer surrounding the porous pipe to prevent subsurface material from obstructing said porous pipe;
- and
- a pump for evacuating material from the pipe.
A method of installing a material-packed porous pipe in a subterranean hole comprising the steps of:
- placing a liner pipe containing the porous pipe and coupled to a conveyor pipe in the subsurface hole;
- anchoring the porous pipe within the hole;
- and
- simultaneously removing the liner pipe and transporting the material through the conveyor pipe to the hole to surround the porous pipe.
Apparatus for placing a porous pipe surrounded by filtering material in a horizontal subsurface hole, comprising:
- a liner pipe for containing the porous pipe during placement of the porus pipe in the hole;
- apparatus for removing the liner pipe from the hole while maintaining the porus pipe in a desired position within the hole;
- and
- a material conveyor pipe coupled to the liner pipe for conveying the filtering material to the hole during removal of the liner pipe to positively place the filtering material around said liner pipe.
Dependencies are inferred from the claim text.