AQUEOUS SOLUTION AND METHODS FOR MANUFACTURE AND USE
    21.
    发明申请
    AQUEOUS SOLUTION AND METHODS FOR MANUFACTURE AND USE 审中-公开
    水溶液及其制造方法

    公开(公告)号:US20150240147A1

    公开(公告)日:2015-08-27

    申请号:US14189714

    申请日:2014-02-25

    CPC classification number: C09K8/68 C09K8/74

    Abstract: Oilfield treatment compositions contain water, hydrochloric acid and urea. The urea and water may be present at a urea/water weight ratio between 0.8 and 12.0, and the hydrochloric acid and urea may be present at a urea/hydrochloric acid molar ratio between 0.1 and 0.5. The compositions are present as one liquid phase. The volumes of the compositions are substantially higher than those of the water volumes; consequently, the amount of water necessary to perform various well-service operations is lower.

    Abstract translation: 油田处理组合物含有水,盐酸和尿素。 尿素和水可以以0.8和12.0之间的尿素/水重量比存在,并且盐酸和尿素可以以0.1至0.5的尿素/盐酸摩尔比存在。 组合物作为一个液相存在。 组合物的体积显着高于水体积; 因此,执行各种良好服务操作所需的水量较低。

    AQUEOUS SOLUTION AND METHOD FOR USE THEREOF
    26.
    发明申请
    AQUEOUS SOLUTION AND METHOD FOR USE THEREOF 审中-公开
    水溶液及其使用方法

    公开(公告)号:US20150122499A1

    公开(公告)日:2015-05-07

    申请号:US14072437

    申请日:2013-11-05

    CPC classification number: C09K8/52 C09K8/54 C09K2208/32

    Abstract: Oilfield treatment compositions contain water, hydrochloric acid at a concentration between 15 wt % and 45.7 wt % and a first fixing agent. The first fixing agent comprises urea, a urea derivative or both. The molar ratio between the first fixing agent and water may be higher than or equal to 0.5, and urea is the dominant solvent species in the compositions. In these compositions the first fixing agent provides corrosion inhibition when exposed to steel. The compositions may also contain a second fixing agent and an inhibitor aid.

    Abstract translation: 油田处理组合物含有浓度为15重量%至45.7重量%之间的水,盐酸和第一固定剂。 第一固定剂包括尿素,尿素衍生物或二者。 第一固定剂和水之间的摩尔比可以高于或等于0.5,脲是组合物中主要的溶剂种类。 在这些组合物中,当暴露于钢时,第一固定剂提供腐蚀抑制。 组合物还可以含有第二固定剂和抑制剂助剂。

    SYNCHRONIZING PULSES IN HETEROGENEOUS FRACTURING PLACEMENT
    28.
    发明申请
    SYNCHRONIZING PULSES IN HETEROGENEOUS FRACTURING PLACEMENT 有权
    异构断裂放样中的同步脉冲

    公开(公告)号:US20140352954A1

    公开(公告)日:2014-12-04

    申请号:US14287526

    申请日:2014-05-27

    CPC classification number: E21B43/267

    Abstract: A technique facilitates a fracturing operation by maintaining the heterogeneity of proppant fluid as it is injected into reservoir fractures. The technique comprises using a blender to deliver proppant material in a pulsating manner to create pulses of proppant. The pulses of proppant are mixed with a fluid to create a proppant slurry having the pulses of proppant material separated by a second fluid. The proppant slurry is then split between a plurality of pumps which are operated to pump the slurry to a well. To maintain heterogeneity, the pump rates of the pumps are individually adjusted to control dispersion of the pulses of proppant downstream of the pumps and to substantially maintain the separated pulses of proppant material in the slurry. A wide variety of other system adjustments also may be made for enhancing the ability of the overall fracturing system to maintain separated pulses of concentrated proppant material.

    Abstract translation: 一种技术通过在支撑剂流体注入到储层裂缝中时保持支撑剂流体的异质性有利于压裂作业。 该技术包括使用搅拌器以脉动方式递送支撑剂材料以产生支撑剂的脉冲。 支撑剂的脉冲与流体混合以产生具有由第二流体分离的支撑剂材料的脉冲的支撑剂浆料。 然后将支撑剂浆料分离在多个泵之间,这些泵被操作以将浆料泵送到井中。 为了保持异质性,泵的泵速率被单独调节以控制泵下游的支撑剂的脉冲的分散,并且基本上保持浆料中支撑剂材料的分离的脉冲。 还可以进行各种各样的其他系统调整,以增强整个压裂系统维持浓缩的支撑剂材料的分离脉冲的能力。

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