HYDROLYZED NITRILOTRIACETONITRILE COMPOSITIONS, NITRILOTRIACETONITRILE HYDROLYSIS FORMULATIONS AND METHODS FOR MAKING AND USING SAME
    21.
    发明申请
    HYDROLYZED NITRILOTRIACETONITRILE COMPOSITIONS, NITRILOTRIACETONITRILE HYDROLYSIS FORMULATIONS AND METHODS FOR MAKING AND USING SAME 有权
    水解硝基乙酸酯组合物,硝基乙酸盐水解方法及其制备和使用方法

    公开(公告)号:US20110224107A1

    公开(公告)日:2011-09-15

    申请号:US13112032

    申请日:2011-05-20

    IPC分类号: C09K8/52

    CPC分类号: C07C255/05

    摘要: Hydrolyzed nitrilotriacetonitrile compositions are disclosed prepared by a method characterized by a one-shot addition of an amount of nitrilotriacetonitrile to a solution containing an acid catalyst, where the reaction is complete in a time period of less than an hour. The method is also characterized by adjusting the pH of the reaction mixture to a pH of at least 8. The method is also characterized by oxidatively removing free cyanide to a desired low level through the addition of an oxidizing agent the produces environmentally benign by-products to the crude hydrolyzed NTAN to form hydrolyzed NTAN compositions having minimized, negligible, or substantially no free cyanide levels.

    摘要翻译: 公开了水解的次氮基三乙腈组合物,其通过以下方法制备,其特征在于将一定量的次氮基三乙腈一次性加入到含有酸催化剂的溶液中,其中反应在少于1小时的时间内完成。 该方法的特征还在于将反应混合物的pH调节至至少8的pH。该方法的特征还在于通过加入产生环境友好的副产物的氧化剂将游离氰化物氧化去除所需的低水平 到粗水解的NTAN以形成具有最小化,可忽略或基本上没有游离氰化物水平的水解的NTAN组合物。

    APPARATUS, COMPOSITIONS, AND METHODS OF BREAKING FRACTURING FLUIDS
    22.
    发明申请
    APPARATUS, COMPOSITIONS, AND METHODS OF BREAKING FRACTURING FLUIDS 有权
    装置,组合物和破碎流体的方法

    公开(公告)号:US20110177982A1

    公开(公告)日:2011-07-21

    申请号:US13079081

    申请日:2011-04-04

    IPC分类号: C09K8/62

    摘要: Apparatus and compositions for reducing the viscosity of a gelled fluid is provided. In one embodiment, a viscosity reducing microbe is disposed in a capsule and added to the gelled fluid. The gelled fluid may include a thickening agent adapted to increase its viscosity. Upon release from the capsule, the microbe begins to digest the thickening agent in the gelled fluid and/or releases enzymes that that breakdown the thickening agent.

    摘要翻译: 提供了用于降低凝胶流体粘度的装置和组合物。 在一个实施方案中,将降粘微生物置于胶囊中并加入到胶凝液中。 凝胶流体可以包括适于增加其粘度的增稠剂。 当从胶囊释放时,微生物开始消化胶凝液中的增稠剂和/或释放破坏增稠剂的酶。

    Non-aqueous foam composition for gas lift injection and methods for making and using same
    26.
    发明授权
    Non-aqueous foam composition for gas lift injection and methods for making and using same 有权
    用于气举注射的非水泡沫组合物及其制造和使用方法

    公开(公告)号:US07565933B2

    公开(公告)日:2009-07-28

    申请号:US11736971

    申请日:2007-04-18

    IPC分类号: E21B43/00

    CPC分类号: C09K8/58 C09K8/594 E21B43/122

    摘要: A hydrocarbon drilling fluid system is disclosed including a hydrocarbon fluid and a foaming composition, where the foaming composition includes a polymer, a gelling agent and its cross-linking agent, an optional foaming agent, or mixtures or combinations thereof. Uses of this drilling fluid system in a variety of downhole application are also disclosed.

    摘要翻译: 公开了一种烃钻井液系统,其包括烃流体和发泡组合物,其中发泡组合物包括聚合物,胶凝剂及其交联剂,任选的发泡剂或其混合物或组合。 还公开了在各种井下应用中的该钻井液系统的使用。

    Well bore servicing fluids comprising thermally activated viscosification compounds and methods of using the same
    27.
    发明申请
    Well bore servicing fluids comprising thermally activated viscosification compounds and methods of using the same 有权
    包含热活化增粘化合物的井眼维修流体及其使用方法

    公开(公告)号:US20080121395A1

    公开(公告)日:2008-05-29

    申请号:US12021889

    申请日:2008-01-29

    IPC分类号: E21B43/267

    摘要: Well bore servicing fluids are provided that include a thermally activated viscosification compound. Further, methods of servicing a well bore are provided that include displacing such a servicing fluid into the well bore, wherein a viscosity of the servicing fluid increases as it passes down the well bore due to its temperature increasing. Thus, the viscosity of the servicing fluid is effective to suspend solids therein when the servicing fluid is in the well bore. The servicing fluid may be, for example, a cement slurry, a drilling fluid, a gravel packing fluid, a fracturing fluid, a completion fluid, or a work-over fluid. In an embodiment, the thermally activated viscosification compound includes at least one water-soluble hydrophobically modified polymer comprising a hydrophobic substituent having from about 1 to about 22 carbon atoms.

    摘要翻译: 提供井眼维修流体,其包括热活化增稠化合物。 此外,提供了维修井眼的方法,其包括使这种维修流体移动到井眼中,其中当维修流体由于其温度升高而向下通过井眼时,维修流体的粘度增加。 因此,当维修流体在井眼中时,维修流体的粘度有效地将固体悬浮在其中。 维修流体可以是例如水泥浆,钻井液,砾石填充流体,压裂流体,完井流体或修补流体。 在一个实施方案中,热活化的增粘化合物包括至少一种包含具有约1至约22个碳原子的疏水取代基的水溶性疏水改性聚合物。

    Method of using a swelling agent to prevent a cement slurry from being lost to a subterranean formation
    29.
    发明授权
    Method of using a swelling agent to prevent a cement slurry from being lost to a subterranean formation 有权
    使用溶胀剂防止水泥浆料丢失到地层的方法

    公开(公告)号:US06983799B2

    公开(公告)日:2006-01-10

    申请号:US10375206

    申请日:2003-02-27

    IPC分类号: E21B33/14 E21B33/16

    摘要: Methods of cementing in a subterranean formation include passing a swelling agent to a permeable zone in a subterranean formation. The swelling agent is combined with a carrier fluid before being passed to the permeable zone. Upon contacting an aqueous fluid, the swelling agent swells in the permeable zone. The aqueous fluid may already be present in the subterranean formation, or alternatively, it may be introduced to the subterranean formation after passing the swelling agent into the subterranean formation. The swelling agent substantially inhibits a cement slurry subsequently pumped into the subterranean formation from passing through the permeable zone. The cement slurry therefore continues flowing down through the casing and up through the annulus where it sets and forms a strong cement column.

    摘要翻译: 在地层中固井的方法包括使溶胀剂通过地层中的可渗透区域。 溶胀剂在被传送到渗透区之前与载体流体结合。 在与含水流体接触时,溶胀剂在可渗透区域中膨胀。 含水流体可能已经存在于地层中,或者可以在将溶胀剂通入地层之后引入地下地层。 溶胀剂基本上抑制随后泵送到地层中的水泥浆通过可渗透区。 因此,水泥浆料继续向下流过套管并向上流过其所在的环形区并形成一个坚固的水泥柱。