Downhole gas separation method and system
    1.
    发明授权
    Downhole gas separation method and system 有权
    井下气体分离方法及系统

    公开(公告)号:US06755251B2

    公开(公告)日:2004-06-29

    申请号:US10234907

    申请日:2002-09-04

    IPC分类号: E21B4308

    摘要: The invention is a method and system of separating a multi-component fluid in a wellbore. At least one fluid separation membrane comprising a feed side and a permeate side is incorporated in the wellbore. A flowing stream of the multi-component fluid obtained from a subterranean zone being in fluid communication with the wellbore is passed across the feed side of the membrane at a first pressure. A retentate stream depleted in at least one component compared to the multi-component fluid is withdrawn from the feed side of the membrane and passed to the earth's surface. A permeate stream at a second pressure is withdrawn from the permeate side, in which the permeate stream is enriched in at least one component compared with the multi-component fluid. The second pressure is controlled to maintain the second pressure below the first pressure.

    摘要翻译: 本发明是一种在井眼中分离多组分流体的方法和系统。 包含进料侧和渗透侧的至少一个流体分离膜被并入井筒中。 从与井筒流体连通的地下区域获得的多组分流体的流动流在第一压力下穿过膜的进料侧。 与多组分流体相比,消耗至少一种组分的滞留物流从膜的进料侧排出并传递到地球表面。 渗透物流从第二压力排出,渗透物流与多组分流体相比富含至少一种成分。 控制第二压力以将第二压力保持在第一压力以下。

    High-pressure separation of a multi-component gas
    2.
    发明授权
    High-pressure separation of a multi-component gas 有权
    多组分气体的高压分离

    公开(公告)号:US06632266B2

    公开(公告)日:2003-10-14

    申请号:US10234920

    申请日:2002-09-04

    IPC分类号: B01D5322

    摘要: The invention relates to a method of separating one or more components from a multi-component gas stream comprising at least one non-acid gas component and at least one acid gas component. A multi-component gas stream at a pressure above 1,200 psia (82.8 bar) and a temperature above 120° F. (48.9° C.) with the concentration of at least one acid gas component in the gas stream being at least 20 mole percent is passed to a membrane system that selectively separates at least one acid gas component from the multi-component gas stream as a permeate stream. The permeate stream has a pressure at least 20% of the pressure of the feed pressure.

    摘要翻译: 本发明涉及从包含至少一种非酸性气体组分和至少一种酸性气体组分的多组分气流中分离一种或多种组分的方法。 压力高于1,200psia(82.8bar)和高于120°F(48.9℃)的多组分气流,气流中至少一种酸性气体组分的浓度为至少20摩尔% 被传递到膜系统,其选择性地将至少一种酸性气体组分与作为渗透物流的多组分气流分离。 渗透物流的压力至少为进料压力的20%