Global Patent Index - EP 1379756 A4

EP 1379756 A4 20050914 - METHOD FOR PUMPING FLUIDS

Title (en)

METHOD FOR PUMPING FLUIDS

Title (de)

VERFAHREN ZUM PUMPEN VON FLUIDEN

Title (fr)

PROCEDE DE POMPAGE DE FLUIDES

Publication

EP 1379756 A4 20050914 (EN)

Application

EP 02709817 A 20020311

Priority

  • US 0207348 W 20020311
  • US 27567701 P 20010312
  • US 83874401 A 20010419

Abstract (en)

[origin: WO02072998A1] The production rate, useful life and operating efficiency of electric submergible pumping systems (ESP) is improved by operating the system so that the motor (220, 320) is cooled by two passes of production. Production fluids remove waste heat from the motor (220, 320) by passing the fluid in contact with the exterior of the motor (220, 320). The improved cooling permits the motor to be operated at a lower temperature improving life and efficiency, and/or to be operated at higher power at a similar temperature. Additionally, oversized and excess equipment is not required, further improving performance and economics for the user. In another aspect, the invention is a method of pumping fluids using a motor having vortex generators (366) on its exterior surfaces or on the interior surfaces of a surrounding shroud.

IPC 1-7

E21B 43/00; E21B 43/12

IPC 8 full level

E21B 43/12 (2006.01)

CPC (source: EP)

E21B 43/128 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

WO 02072998 A1 20020919; CN 1281847 C 20061025; CN 1507531 A 20040623; EP 1379756 A1 20040114; EP 1379756 A4 20050914

DOCDB simple family (application)

US 0207348 W 20020311; CN 02809753 A 20020311; EP 02709817 A 20020311