Invention Grant
- Patent Title: Staged steam extraction of in situ bitumen
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Application No.: US15115293Application Date: 2015-03-18
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Publication No.: US10400564B2Publication Date: 2019-09-03
- Inventor: Harpreet Singh , Naoko Akiya , Wu Chen , Paul A. Gillis , Abu Mokhtarul Hassan , Zubin B. Kuvadia , Biplab Mukherjee , Jorge H. Pazmino , Defne Kayrak Talay
- Applicant: Dow Global Technologies LLC
- Applicant Address: US MI Midland
- Assignee: Dow Global Technologies LLC
- Current Assignee: Dow Global Technologies LLC
- Current Assignee Address: US MI Midland
- International Application: PCT/US2015/021253 WO 20150318
- International Announcement: WO2015/143034 WO 20150924
- Main IPC: C09K8/584
- IPC: C09K8/584 ; C09K8/592 ; E21B43/24

Abstract:
The present invention relates to an in situ staged steam extraction method for removing petroleum products from a heavy oil or bitumen reservoir from subterranean locations. Specifically, each injection stage comprises a different steam composition. A steam composition may consist essentially of steam or may comprise one or more enhanced oil recovery agent.
Public/Granted literature
- US20170241250A1 STAGED STEAM EXTRACTION OF IN SITU BITUMEN Public/Granted day:2017-08-24
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