Patent · US Active

Completion system for subsurface equipment

US8439105B2 · kind B2 · utility

0Cited by
32References
12Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJul 28, 2009
Grant dateMay 14, 2013
Priority date—
Expiry dateJul 26, 2031

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE21B43/129
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

An apparatus for creating multiple and isolated well flow paths operating at different pressures in the wellbore is described. These multiple flow paths establish a full circulation loop with the surface and a remaining isolated flow channel produces reservoir fluids to the surface. Heat is transferred from the produced reservoir fluid into the circulated loop via a unique down-hole heat exchanger. The flow of reservoir fluid through the isolated annular well channel allows for more efficient and extensive extraction of heat from the reservoir fluid compared with merely heating the circulating loop via the well bore exterior surface.

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