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    • 7. 发明申请
    • Degradable additive for viscoelastic surfactant based fluid systems
    • 用于粘弹性表面活性剂的流体系统的可降解添加剂
    • US20050252659A1
    • 2005-11-17
    • US11159023
    • 2005-06-22
    • Philip SullivanJ. BrownJesse LeeGolchehreh Salamat
    • Philip SullivanJ. BrownJesse LeeGolchehreh Salamat
    • C09K8/68C09K8/70E21B43/267
    • C09K8/68C09K8/506C09K8/62C09K8/70C09K8/72C09K8/74C09K2208/26C09K2208/30Y10S507/902
    • A method is given for treating a subterranean formation penetrated by a wellbore with a viscosified fluid. The fluid contains a solid hydrolysable polyacid that upon dissolution and hydrolysis releases an acid that is a breaker for the viscosifying system. Suitable solid hydrolysable polyacids include polylactic acid and polyglycolic acid. The fluid also contains a pH control agent, present in an amount sufficient to neutralize any acid present in the solid hydrolysable polyacid before the injection and to neutralize any acid generated by the solid hydrolysable polyacid during the injection, so that the acid breaker is not available to break the fluid during the injection. In one embodiment the viscosifier is a viscoelastic surfactant fluid system and the solid hydrolysable polyacid is of a size selected to be a fluid loss additive, for example in fracturing or gravel packing. In another embodiment, the solid hydrolysable polyacid is used in particles sufficiently small that they enter the pores of the formation. In either case, the viscosifier is broken after the solid releases more acid than can be neutralized by the pH control agent.
    • 给出了用增稠液体处理井眼渗透的地层的方法。 流体包含固体可水解的多酸,其在溶解和水解时释放酸,该酸是用于增粘体系的断裂剂。 合适的固体可水解的多元酸包括聚乳酸和聚乙醇酸。 流体还含有pH控制剂,其量足以中和注射前固体可水解的多元酸中存在的任何酸,并且在注射期间中和由固体可水解的多元酸产生的任何酸,使得酸性破坏剂不可用 在注射期间打破流体。 在一个实施方案中,增粘剂是粘弹性表面活性剂流体系统,并且固体可水解的多元酸的尺寸被选择为流体损失添加剂,例如在压裂或砾石包装中。 在另一个实施方案中,固体可水解的多元酸以足够小的颗粒使用,使得它们进入地层的孔。 在任一种情况下,在固体释放比可以被pH控制剂中和的酸更多之后,粘稠剂被破坏。
    • 9. 发明申请
    • Variable tint cosmetics
    • 变色调化妆品
    • US20060193800A1
    • 2006-08-31
    • US11340297
    • 2006-01-26
    • John ReinhardtJohn HillMichele WardJ. Brown
    • John ReinhardtJohn HillMichele WardJ. Brown
    • A61K8/02A61K8/97
    • A61Q1/02A61K8/0241A61K8/11A61K8/31A61K8/37A61K8/8111A61K8/922A61K8/97A61K2800/31A61K2800/412A61K2800/43A61Q1/12
    • The disclosed systems and methods for delivery of variable tint pigment materials in cosmetic concealer/foundation products generally include anhydrous carrier particles adapted to carry pigment. The pigmentation carrier particles may be optionally admixed with anhydrous (optionally tinted) base formulation material that is suitably adapted to suspend and/or separate the pigmentation carrier particles. Disclosed features and specifications may be variously controlled, adapted or otherwise modified to realize improved site-specific delivery of pigment in customized concentrations in order to achieve a desired result. Exemplary embodiments of the present invention generally provide anhydrous pigmentation carrier particles that may be mixed with substantially anhydrous topical base formulations that allow a user to deliver a selected concentration of concealer/foundation tint to a specific region of the skin, for example, in order to obscure a blemish.
    • 用于在化妆品遮瑕膏/粉底产品中递送可变色素材料的所公开的系统和方法通常包括适于承载颜料的无水载体颗粒。 色素载体颗粒可以任选地与适当地适于悬浮和/或分离着色载体颗粒的无水(任选着色的)基础制剂材料混合。 公开的特征和规格可以被不同地控制,适应或以其他方式修饰,以实现改变的定制浓度的颜料的位置特异性递送,以获得期望的结果。 本发明的示例性实施方案通常提供可与基本上无水的局部基础制剂混合的无水色素沉淀载体颗粒,其允许使用者将选定浓度的遮瑕膏/基质着色剂递送至皮肤的特定区域,以便 晦涩难懂