发明名称 Multi-chamber gas anchor
摘要 A gas anchor for use below a reciprocating well pump comprises a series of elongated chambers formed by radially extensive baffles for substantially blocking the space between a perforated liquid discharge tube and a perforated surrounding sleeve. The relative sizes and locations of the openings in the walls of the discharge tube and sleeve and the size of the chambers provide efficient operation and freedom from mechanical damage.
申请公布号 US4515608(A) 申请公布日期 1985.05.07
申请号 US19820354875 申请日期 1982.03.04
申请人 SHELL OIL COMPANY 发明人 CLEGG, JOE D.
分类号 B01D19/00;E21B43/38;(IPC1-7):B01D19/00 主分类号 B01D19/00
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