Wells – Packers or plugs – Spaced sealing portions
Patent
1998-05-02
1999-04-13
Suchfield, George
Wells
Packers or plugs
Spaced sealing portions
1662421, 1662426, 166217, 166370, E21B 2300, E21B 2302, E21B 33129
Patent
active
058934146
ABSTRACT:
A device for intensification of hydrocarbons production has a substantially tubular hollow body adapted to be arranged inside a well tubing and having an axis and a plurality of passages arranged one after the other in an axial direction and having different dimensions so that hydrocarbons can flow from a bottomhole of the well successively through the passages toward a well head, the body having at least one tubular portion which is provided inside with at least one of the passages and is provided outside with a unit for fixing the at least one portion and therefore the body to the well tubing, the body also having another portion axially spaced from at least one portion and provided inside with at least one of the passages and outside with a unit for sealing the another portion relative to the well tubing.
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patent: 5697448 (1997-12-01), Johnson
patent: 5752570 (1998-05-01), Shaposhnikov
Kuslitskiy Leonid A.
Shaposhnikov Vladimir M.
Petroenergy LLC
Suchfield George
Zborovsky Ilya
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