Device for improving oil and gas recovery in wells

Details Device for improving oil and gas recovery in wells Device for improving oil and gas recovery in wells

2006-05-30

2006-05-30

Glessner, Brian E. (Department: 3676)

Wells

Processes

Producing the well

C166S068000, C166S370000

Reexamination Certificate

active

07051817

ABSTRACT:
A device for improving recovery of hydrocarbons through a well by creating, regulating and maintaining under the device a calculated bottomhole pressure at a desired level and creating above the device a two-phase gas-liquid homogenous flow for efficient lifting of hydrocarbons to a surface, the device has a body having a central throughgoing opening with a shape corresponding a shape of a Laval nozzle and with a cross section which changes steplessly and gradually, and a mandrel attachable to a tubing and associated with the body without interfering with a flow of fluids.

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patent: 6547532 (2003-04-01), Gonzalez et al.
patent: 6863125 (2005-03-01), Ivannikov et al.
patent: 2002/0096332 (2002-07-01), De Almeida

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