Method for steam assisted gravity drainage with pressure differential injection
    11.
    发明授权
    Method for steam assisted gravity drainage with pressure differential injection 有权
    用压差法注入蒸汽辅助重力排水方法

    公开(公告)号:US09267367B2

    公开(公告)日:2016-02-23

    申请号:US13432954

    申请日:2012-03-28

    IPC分类号: E21B43/24 E21B43/16 E21B36/00

    摘要: A process for recovering hydrocarbons with steam assisted gravity drainage (SAGD) with pressure differential injection. Methods for producing hydrocarbons in a subterranean formation having at least two well pairs include installing a highest pressure well pair in the subterranean formation; installing a lowest pressure well pair in the subterranean formation; applying a pressure differential across the highest pressure well pair and the lowest pressure well pair; injecting steam into the first injection well to form a first steam chamber; injecting steam into the final injection well to form an adjacent steam chamber; monitoring the steam chambers until they merge into a final steam chamber; ceasing the flow of steam into the first injection well; and injecting steam into the final injection well to maintain the final steam chamber.

    摘要翻译: 采用蒸汽辅助重力排水(SAGD)采用压力差分注入方法回收碳氢化合物的方法。 在具有至少两个井对的地层中生产碳氢化合物的方法包括在地层中安装最高压力井对; 在地层中安装最低压力井对; 在最高压力井对和最低压力井对上施加压力差; 将蒸汽注入第一注入井以形成第一蒸汽室; 将蒸汽注入最终的注入井以形成相邻的蒸汽室; 监测蒸汽室,直到它们合并成最终的蒸汽室; 停止蒸汽流入第一注入井; 并将蒸汽注入最终注射井以保持最终的蒸汽室。