Patent · US Expired

Apparatus for removal of wellbore particles

US4694901A · kind A · utility

21Cited by
8References
10Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJul 29, 1985
Grant dateSep 22, 1987
Priority date
Expiry dateJul 29, 2005

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE21B37/00
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

A method and apparatus for removing solid particles which have settled out in a region of a wellbore which employs at least one pair of conduit means, one of said conduit means having nozzle means thereon, said conduit means being disposed in the region of settled particle and passing fluid through one conduit means and the nozzle means into region of settled particles to mix with same and recovering the mixture of fluid and particles from said region by way of the other conduit means.

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