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    • 1. 发明授权
    • Cement retarder
    • 水泥缓凝剂
    • US07896964B2
    • 2011-03-01
    • US11965319
    • 2007-12-27
    • Stephane BoulardJesse Lee
    • Stephane BoulardJesse Lee
    • C04B24/04
    • C04B22/02C04B24/04C09K8/467
    • The invention provides a cementitious composition for oilfield application comprising an organic retarder having at least one carboxylate group and copper ions such that a complex is made between copper ion and carboxylate group. Also a method to retard cementitious composition for oilfield application is disclosed, the method comprising the unique double step of adding an organic retarder having at least one carboxylate group and adding copper ions such that a complex is made between copper ion and carboxylate group.
    • 本发明提供一种用于油田施用的水泥组合物,其包含具有至少一个羧酸盐基团和铜离子的有机延迟剂,使得在铜离子和羧酸盐基团之间形成络合物。 还公开了一种延缓油田施用的胶结组合物的方法,该方法包括添加具有至少一个羧酸酯基的有机延迟剂并加入铜离子以使得在铜离子和羧酸酯基之间形成络合物的独特的双重步骤。
    • 6. 发明授权
    • Carbon dioxide foamed fluids
    • 二氧化碳发泡流体
    • US07803744B2
    • 2010-09-28
    • US11858246
    • 2007-09-20
    • Yiyan ChenJesse LeeTimothy L. Pope
    • Yiyan ChenJesse LeeTimothy L. Pope
    • C09K8/518C09K8/60
    • C09K8/706B01F17/0085C09K8/516C09K8/703C09K8/74C09K2208/30Y10S507/904
    • An aqueous viscoelastic surfactant (VES) fluid foamed or energized with carbon dioxide, in which the VES is more compatible with the carbon dioxide, is made by the addition of one or more than one synergistic co-surfactant. The synergist co-surfactant includes quaternary amines and ethoxylated carboxylates having a hydrophobic chain shorter than the hydrophobic chain of the VES. Improved compatibility is evidenced for a given surfactant concentration either by formation and maintenance of a foam under conditions at which the foam could not otherwise have been formed or maintained, or by either higher viscosity of the foamed fluid at a given temperature or longer foam life at a given temperature or a higher temperature at which useful fluid viscosity can be generated or maintained for a useful time. The aqueous carbon dioxide foamed fluids may be used in acidizing, acid fracturing, gravel packing, diversion, and well cleanout.
    • 通过添加一种或多种协同辅助表面活性剂,可以制备VES与二氧化碳更相容的二氧化碳发泡或赋能的含水粘弹性表面活性剂(VES)流体。 增效剂助表面活性剂包括具有比VES的疏水链短的疏水链的季胺和乙氧基化羧酸盐。 对于给定的表面活性剂浓度,通过在泡沫不能形成或保持的条件下形成和维持泡沫,或通过在给定温度下较高粘度的发泡流体或更长的泡沫寿命来证明给定的表面活性剂浓度的改进的相容性 给定的温度或更高的温度,在该温度下可以产生或维持有用的时间。 二氧化碳水溶液发泡流体可用于酸化,酸压裂,砾石填充,分流和清洁。
    • 10. 发明申请
    • METHODS FOR SERVICING SUBTERRANEAN WELLS
    • 维修地下水井的方法
    • US20110048720A1
    • 2011-03-03
    • US12872320
    • 2010-08-31
    • Nelson DiazJesse LeeStéphane Boulard
    • Nelson DiazJesse LeeStéphane Boulard
    • E21B43/00
    • C09K8/518
    • Methods for controlling lost circulation in subterranean wells, and in particular, fluid compositions and methods for operations during which the fluid compositions are pumped into a wellbore, enter voids in the subterranean-well formation through which wellbore fluids escape, and form a seal that limits further egress of wellbore fluid from the wellbore. The methods include preparing a carrier fluid containing compressed expandable foam that may be encapsulated. The carrier fluid is then placed into a lost-circulation zone, whereupon the foam expands to form a barrier that minimizes or blocks further ingress of carrier fluid. Lost-circulation control may be supplemented by introducing additional lost-circulation materials, pumping a cement slurry behind the foam-containing carrier fluid or both.
    • 用于控制地下井中的流失的方法,特别是用于将流体组合物泵入井孔的操作的流体组合物和方法在井眼流体排出的地下井井中进入空隙,并形成限制的密封 从井眼进一步排出井筒流体。 所述方法包括制备包含可被包封的压缩的可膨胀泡沫的载体流体。 然后将载体流体放入失去循环区域,于是泡沫体膨胀形成最小化或阻止载体流体进一步进入的屏障。 可以通过引入额外的缺失循环材料,在包含泡沫的载体流体或两者之后泵送水泥浆来补充流失控制。