Wells – Processes – Producing the well
Patent
1998-10-26
1999-05-18
Neuder, William
Wells
Processes
Producing the well
1662423, E21B43/00
Patent
active
059042095
ABSTRACT:
A method and device for removal of production inhibiting liquid from a gas well, wherein a tubing string is placed inside the well to form a fluid communication path from the liquid accumulation zone near the bottom of the well to the ground surface. The diameter of the tubing string is sufficiently small (preferably between 1/16 and 1/2 inch) so as to define a high liquid-to-gas ratio two-phase flow, preferably capillary bubble flow along the tubing string in order to maximize the liquid head and minimize the gas loss in this tubing string, and to reduce or eliminate the additional restriction along the main gas production tubing generally associated with the presence of such tubing string. In some embodiments, the tubing string comprises a plurality of individual tubing channels for increased rate of liquid removal, each channel being of sufficiently small size so as to define a capillary bubble flow.
REFERENCES:
patent: 5634522 (1997-06-01), Hershberger
patent: 5671813 (1997-09-01), Lima
patent: 5730220 (1998-03-01), Ganelin
Ganelin Boris
Kenworthy Michael W.
Leschinsky Boris
Neuder William
Technology Commercialization Corp.
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