Patent · US Active

Method and apparatus for in situ extraction of bitumen or very heavy oil

US8485254B2 · kind B2 · utility

3Cited by

20References

17Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Norbert Huber · Erlangen, DE
Hans-Peter Krämer · Erlangen, DE

Key dates

Filing date	Aug 19, 2008
Grant date	Jul 16, 2013
Priority date	—
Expiry date	Nov 23, 2029

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B43/2406
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A method for the in situ extraction of bitumen or very heavy oil from oil sand deposits close to the surface, where thermal energy is introduced into the deposit to reduce the viscosity of the bitumen or very heavy oil is provided. Condensed water is used that is introduced into the deposit via an injection pipe and is horizontally conducted inside the pipe within the deposit such that the water can evaporate in situ and the heat can be applied to the deposit. An apparatus including an injection pipe, an extraction pipe, a converter and electrical conductors are also provided.

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