Invention Grant
- Patent Title: Formation preconditioning using an aqueous polymer preflush
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Application No.: US14850478Application Date: 2015-09-10
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Publication No.: US10308863B2Publication Date: 2019-06-04
- Inventor: Leonardus Bartholomeus Maria Wassing , Esther Christianne Maria Vermolen , Mark Theodoor Looijer , Bartholomeus Marinus Josephus Maria Suijkerbuijk
- Applicant: SHELL OIL COMPANY
- Applicant Address: US TX Houston
- Assignee: SHELL OIL COMPANY
- Current Assignee: SHELL OIL COMPANY
- Current Assignee Address: US TX Houston
- Main IPC: C09K8/588
- IPC: C09K8/588 ; E21B43/16
Abstract:
A method of producing fluid from a formation containing hydrocarbons in which an aqueous polymer preflush fluid is injected into the formation followed by injection of an aqueous polymer displacement fluid, where the aqueous polymer preflush fluid has a total dissolved solids content that is greater than the total dissolved solids content of the aqueous polymer displacement fluid.
Public/Granted literature
- US20160075936A1 FORMATION PRECONDITIONING USING AN AQUEOUS POLYMER PREFLUSH Public/Granted day:2016-03-17
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