Patent · US Active

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

US8113281B2 · kind B2 · utility

0Cited by

5References

17Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

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

Key dates

Filing date	Aug 19, 2008
Grant date	Feb 14, 2012
Priority date	—
Expiry date	Oct 20, 2028

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B43/2408
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A method to extract bitumen or very heavy oil in situ from oil sand seams close to the Earth's surface is provided. Energy is introduced via at least two pipes at a given, repeatable distance from the seam, a predefined geometry is maintained in relation to the well pair. The associated apparatus includes at least one additional pipe which is alternatively designed as an electrode or also for feeding vapor and is placed above the injection pipe.

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