| 发明名称 |
FORMATION PRECONDITIONING USING AN AQUEOUS POLYMER PREFLUSH |
| 摘要 |
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. |
| 申请公布号 |
US2016075936(A1) |
申请公布日期 |
2016.03.17 |
| 申请号 |
US201514850478 |
申请日期 |
2015.09.10 |
| 申请人 |
SHELL OIL COMPANY |
发明人 |
WASSING Leonardus Bartholomeus Maria;VERMOLEN Esther Christianne Maria;LOOIJER Mark Theodoor;SUIJKERBUIJK Bartholomeus Marinus Josephus Maria |
| 分类号 |
C09K8/588;E21B43/16 |
主分类号 |
C09K8/588 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method comprising:
injecting a selected volume of an aqueous polymer preflush fluid having a total dissolved solids content into a formation comprising hydrocarbons through an injection well extending into the formation; after injecting the aqueous polymer preflush fluid into the formation, injecting an aqueous polymer displacement fluid having a total dissolved solids content into the formation through the injection well, wherein the total dissolved solids content of the aqueous polymer preflush fluid is greater than the total dissolved solids content of the aqueous polymer displacement fluid; and producing a produced fluid comprising hydrocarbons from the formation through a production well. |
| 地址 |
Houston TX US |
