Patent · US Expired

Riser pipe gas separator for well pump

US6932160B2 · kind B2 · utility

49Cited by
17References
40Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 28, 2003
Grant dateAug 23, 2005
Priority date
Expiry dateAug 16, 2023

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE21B43/38
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

A well pump has a riser gas separator for removing large slugs of gas prior to reentry into the pump. The riser extends upward from a barrier that is located in the well. The riser has an inlet that is located above an effective intake of the pump. Well fluid must turn to flow down to the pump, with gas separating by gravity flowing upward while the liquid flows downward. The downhole assembly has various configurations to assure that fluid flows past the motor for cooling.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.