Patent · US Expired

Fluid mixing apparatus for submersible pumps

US4749034A · kind A · utility

36Cited by
7References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 26, 1987
Grant dateJun 7, 1988
Priority date
Expiry dateJun 26, 2007

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE21B43/128
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

A well pump assembly has a tube extending into the well for delivering water to a point below the pump to reduce the viscosity of the oil being pumped. The downhole motor that drives the pump is surrounded by a jacket. The tube that delivers the water extends to a point below the jacket to a cross-over member mounted to the lower end of the jacket, which directs the water upward and inward. The cross-over member also has passages that directs the production fluid upward and outward.

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