Shale stabilizing drilling fluids comprising calcium chloride and low molecular weight low charge cationicpolyacrylamide copolymers
    2.
    发明授权
    Shale stabilizing drilling fluids comprising calcium chloride and low molecular weight low charge cationicpolyacrylamide copolymers 失效
    包含氯化钙和低分子量低电荷阳离子聚丙烯酰胺共聚物的页岩稳定钻井液

    公开(公告)号:US06355600B1

    公开(公告)日:2002-03-12

    申请号:US09411346

    申请日:1999-10-01

    IPC分类号: C09K702

    CPC分类号: C09K8/12 C09K2208/18

    摘要: A drilling fluid and method of using same. The drilling fluid comprises water as a continuous phase, an amount of calcium chloride, and a quantity of a polyacrylamide copolymer. The amount of calcium chloride and the quantity of polyacrylamide copolymer in the drilling fluid are sufficient to produce a rate of penetration approaching that achieved using a synthetic oil-based drilling fluid while preventing substantial screen blinding. In a preferred embodiment, the continuous phase also comprises a second amount of a monovalent salt effective to increase gas hydrate suppression and decrease density when compared to a fluid consisting essentially of only a divalent salt in the absence of the monovalent salt.

    摘要翻译: 钻井液及其使用方法。 钻井液包括作为连续相的水,一定量的氯化钙和一定量的聚丙烯酰胺共聚物。 钻井液中氯化钙的量和聚丙烯酰胺共聚物的量足以产生接近使用合成油基钻井液达到的渗透速率,同时防止大量的筛网堵塞。 在一个优选的实施方案中,连续相还包含第二量的一价盐,当与不存在一价盐时基本上仅由二价盐组成的流体相比,这有效地增加气体水合物的抑制和降低密度。

    Collapsible golf bag cart
    3.
    发明授权
    Collapsible golf bag cart 失效
    可折叠高尔夫球包车

    公开(公告)号:US4061360A

    公开(公告)日:1977-12-06

    申请号:US660145

    申请日:1976-02-23

    IPC分类号: B62B1/04 B62B11/00

    摘要: A collapsible cart for carrying one or more golf bags while playing golf including a pair of large diameter wheels having an inflated pneumatic tire on each wheel and a foldable, lightweight, rigid frame of unique construction for positioning in a compact condition with folding of the frame between collapsed and extended positions enabling attachment and detachment of the independent wheels. The cart includes a unique U-shaped handle to facilitate movement of the cart by either pushing the cart or pulling the cart in the nature of a rickshaw. The handle is also pivotal for movement to a compact position alongside the frame. A pivotal bar is mounted on the frame to support the bottom portion of one or two golf bags and a tie cord is provided on the upper portion of the frame to retain the upper end portion of the bag or bags on the frame. Detachment of the frame from the wheels enables storage of the cart in relatively small spaces.

    摘要翻译: 一种用于在打高尔夫球时携带一个或多个高尔夫球袋的可折叠推车,其包括一对具有在每个车轮上充气的充气轮胎的大直径车轮以及具有独特结构的可折叠,重量轻的刚性框架,用于在紧凑状态下定位以便框架折叠 在折叠和延伸位置之间,能够独立车轮的附接和拆卸。 推车包括独特的U形手柄,以便通过推动推车或者以人力车的性质拉动推车来促进推车的移动。 手柄也可以移动到框架旁边的紧凑位置。 枢轴杆安装在框架上以支撑一个或两个高尔夫球袋的底部,并且在框架的上部设有连接绳,以将袋或袋的上端部分保持在框架上。 从车轮上拆下框架可以将推车存放在相对较小的空间内。

    Fluid loss additives and methods of making and using same
    10.
    发明授权
    Fluid loss additives and methods of making and using same 有权
    流体损失添加剂及其制造和使用方法

    公开(公告)号:US09034800B2

    公开(公告)日:2015-05-19

    申请号:US13250882

    申请日:2011-09-30

    IPC分类号: C09K8/502 C09K8/32 C09K8/64

    摘要: A non-aqueous wellbore servicing fluid comprising a fluid loss additive wherein the fluid loss additive comprises the reaction product of (i) a functional polymer and (ii) an oligomerized fatty acid. A method of conducting an oil-field operation comprising placing a non-aqueous wellbore servicing fluid downhole wherein the non-aqueous wellbore servicing fluid comprises a fluid loss additive comprising the reaction product of (i) a functional polymer and (ii) an oligomerized fatty acid.

    摘要翻译: 包含流体损失添加剂的非水性井筒维修流体,其中所述流体损失添加剂包含(i)官能聚合物和(ii)低聚脂肪酸的反应产物。 一种进行油田操作的方法,包括在井下放置非水井筒维修流体,其中非水井筒维修流体包括流体损失添加剂,其包含(i)官能聚合物和(ii)低聚脂肪 酸。