公开(公告)号：US20150034322A1

公开(公告)日：2015-02-05

申请号：US14446524

申请日：2014-07-30

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Scott MACADAM ,  James SEABA ,  David LARKIN

IPC: E21B43/24 ,  E21B43/16

CPC classification number: E21B43/2408

Abstract: Systems and methods relate to recovering hydrocarbons by injecting into a reservoir steam along with carbon dioxide recovered from flue gases produced while generating the steam and from separation of produced fluids. Due to benefits from the carbon dioxide injection, carbon dioxide capture rates from the flue gases selected below fifty percent in such combined recovery of the carbon dioxide enables lower fuel consumption even given that additional fuel is needed for the carbon dioxide capture versus steam only operations. As the capture rates from the flue gases increase above fifty percent like when employed for sequestration purposes, such approaches use more fuel than the steam only operations and may not be cost efficient. A carbon dioxide recovery unit coupled to an air-fired boiler or an auxiliary oxy-fired boiler may supply the carbon dioxide recovered from the flue gases.

Abstract translation: 系统和方法涉及通过从产生蒸汽产生的烟道气中回收的二氧化碳和从生产的流体的分离中注入到储存器蒸汽中来回收烃。 由于二氧化碳注入的好处，在二氧化碳的这种组合回收中，选择低于五十％的烟道气的二氧化碳捕集率可以降低燃料消耗，即使二氧化碳捕获与仅蒸汽操作需要额外的燃料。 由于来自烟道气的捕获率高于百分之五十以上，如同用于隔离目的一样，这种方法使用比仅蒸汽操作更多的燃料，并且可能不具有成本效益。 耦合到空气燃烧锅炉或辅助氧化锅炉的二氧化碳回收单元可以供应从烟道气中回收的二氧化碳。