Process for controlling iron
    2.
    发明授权
    Process for controlling iron 失效
    控制铁的工艺

    公开(公告)号:US5972849A

    公开(公告)日:1999-10-26

    申请号:US553964

    申请日:1995-11-06

    CPC分类号: C09K8/528 C09K8/74

    摘要: In the presence of certain crude oils, when ferric iron exists in very acidic fluid, it practically instantaneously forms precipitates known as sludges which lead to irreversible damage. Iron control compositions and acid fluids containing such iron control compositions are disclosed. For acid fluids containing up to 15% acid, the iron control composition includes a reducing agent selected from a substituted and unsubstituted thiourea compounds, and a reduction catalyst including a copper (cuprous or cupric) compound. When the acid fluid contains more than 15% acid, for example from 15 to 28% acid, the reducing agent is again selected from substituted or unsubstituted thiourea compounds, and the reduction catalyst is a combination of a copper (cuprous or cupric) compound and iodine (iodine or iodide ions). The invention also includes a process for treatment of oil, water, gas, geothermal or analogous wells using an acid fluid containing an iron control composition according to the present invention, and an industrial cleaning process using a cleaning fluid including an acid fluid containing an iron control agent according to the present invention.

    摘要翻译: 在某些原油的存在下,当三价铁存在于非常酸性的流体中时,它几乎瞬间形成称为淤泥的沉淀物,这导致不可逆的损伤。 公开了含铁控制组合物的铁控制组合物和酸流体。 对于含有高达15%酸的酸性流体,铁控制组合物包括选自取代和未取代的硫脲化合物的还原剂和包含铜(亚铜或铜)化合物的还原催化剂。 当酸性流体含有超过15%的酸,例如15至28%的酸时,还原剂再次选自取代或未取代的硫脲化合物,还原催化剂是铜(亚铜或铜)化合物和 碘(碘或碘离子)。 本发明还包括使用含有根据本发明的铁控制组合物的酸性流体处理油,水,气体,地热或类似井的方法,以及使用包括含有铁的酸性流体的清洁流体的工业清洁方法 根据本发明的控制剂。

    METHOD AND DEVICE FOR CONTACTING TWO IMMISCIBLE LIQUIDS WITHOUT MIXING THEM
    4.
    发明申请
    METHOD AND DEVICE FOR CONTACTING TWO IMMISCIBLE LIQUIDS WITHOUT MIXING THEM 有权
    用于在不混合两个液体的情况下接触两个液体的方法和装置

    公开(公告)号:US20120055874A1

    公开(公告)日:2012-03-08

    申请号:US12519150

    申请日:2007-12-19

    IPC分类号: B01D11/04 B01D35/30

    摘要: Method of contacting a first and a second immiscible liquids without mixing them, including: (a) the first liquid is placed in at least one container comprising a wall made of a solid material that is non reactive with the first and second liquids, said wall having one or more through-holes and the first liquid being non wetting vis à vis said solid material of the wall; (b) said first container is immersed in a volume of the second liquid so that the first liquid is in contact with the second liquid at the level of said through-holes; (c) the first liquid is left in contact with the second liquid for a time sufficient for mass exchange, transfer, to take place between the first and second liquids; and (d) said first container is withdrawn from the volume of the second liquid.

    摘要翻译: 在不混合第一和第二不混溶液体的情况下接触第一和第二不混溶液体的方法,包括:(a)将第一液体放置在至少一个容器中,该容器包括由与第一和第二液体不反应的固体材料制成的壁,所述壁 具有一个或多个通孔,并且第一液体相对于壁的所述固体材料不润湿; (b)将所述第一容器浸入所述第二液体的体积中,使得所述第一液体在所述通孔的高度与所述第二液体接触; (c)第一液体与第二液体保持接触一段足以进行质量交换,转移以在第一和第二液体之间发生的时间; 和(d)所述第一容器从第二液体的体积中取出。

    Method and device for contacting two immiscible liquids without mixing them
    5.
    发明授权
    Method and device for contacting two immiscible liquids without mixing them 有权
    在不混合的情况下接触两种不混溶液体的方法和装置

    公开(公告)号:US09295927B2

    公开(公告)日:2016-03-29

    申请号:US12519150

    申请日:2007-12-19

    摘要: Method of contacting a first and a second immiscible liquids without mixing them, including: (a) the first liquid is placed in at least one container comprising a wall made of a solid material that is non reactive with the first and second liquids, said wall having one or more through-holes and the first liquid being non wetting vis à vis said solid material of the wall; (b) said first container is immersed in a volume of the second liquid so that the first liquid is in contact with the second liquid at the level of said through-holes; (c) the first liquid is left in contact with the second liquid for a time sufficient for mass exchange, transfer, to take place between the first and second liquids; and (d) said first container is withdrawn from the volume of the second liquid.

    摘要翻译: 在不混合第一和第二不混溶液体的情况下接触第一和第二不混溶液体的方法,包括:(a)将第一液体放置在至少一个容器中,该容器包括由与第一和第二液体不反应的固体材料制成的壁,所述壁 具有一个或多个通孔,并且第一液体相对于壁的所述固体材料不润湿; (b)将所述第一容器浸入所述第二液体的体积中,使得所述第一液体在所述通孔的高度与所述第二液体接触; (c)第一液体与第二液体保持接触一段足以进行质量交换,转移以在第一和第二液体之间发生的时间; 和(d)所述第一容器从第二液体的体积中取出。

    Control of particulate flowback in subterranean wells
    8.
    发明授权
    Control of particulate flowback in subterranean wells 失效
    控制地下井中的颗粒物回流

    公开(公告)号:US06172011B2

    公开(公告)日:2001-01-09

    申请号:US08576923

    申请日:1996-03-08

    IPC分类号: E21B43267

    摘要: The addition of fibrous mixtures in intimate mixtures with particulates for fracturing and gravel packing decreases or eliminates the undesirable flowback of proppant or formation fines while stabilizing the sand pack and lowering the demand for high polymer loadings in the placement fluids. Fibers are useful for forming a porous pack in the subterranean formation. In some cases, channels or fingers of void spaces with reduced concentrations of proppant may be introduced into the proppant pack.

    摘要翻译: 在紧密混合物中加入纤维混合物用于压裂和砾石填充的颗粒减少或消除支撑剂或成矿细粉的不希望的回流,同时稳定砂堆并降低对放置流体中高聚合物负载的需求。 纤维可用于在地层中形成多孔包装。 在一些情况下,可以将支撑剂浓度降低的空隙空间的通道或手指引入支撑剂包中。