06322616 is referenced by 12 patents and cites 18 patents.

A gas separator connectable between the seating nipple/pump and the mud anchor of a well production line takes advantage of gravitational, shear and centrifugal forces to detrain gas from the formation fluid. An outer cylindrical tube is concentrically secured by upper and lower couplings in relation to an inner cylindrical tube having an axial flow passage and a plurality of radial perforations. The upper coupling is adapted for connection to the seating nipple/pump and the lower coupling is adapted for connection to the mud anchor. The couplings each have a passage therethrough to extend the inner tube axial flow passage in fluid communication between the pump and the mud anchor. The outer cylindrical tube has a plurality of inwardly downwardly centrifugally oriented passages for admitting liquid entrained with gas into an annulus between the tubes and for causing the admitted liquid to flow in a downward spiral in the annulus. The centrifugally oriented passages have irregular sawtooth surfaces extending inwardly downwardly and approximately tangentially in relation to the inner wall of the outer cylindrical tube so as to shear the gas from the fluid and centrifugally cause the gas to move inwardly and the oil and gas combinations to move outwardly in the annulus.

Title
Gas separator for an oil well production line
Application Number
9/512198
Publication Number
6322616 (B1)
Application Date
February 24, 2000
Publication Date
November 27, 2001
Inventor
Gary W Lewis
Bartlesville
OK, US
Howard L Kennedy
Bartlesville
OK, US
Agent
Frank J Catalano
US
Assignee
SDH
OK, US
IPC
B01D 19/00
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