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    • 94. 发明申请
    • HYDROCARBON-BASED DRILLING FLUIDS CONTAINING CESIUM PHOSPHATE
    • 基于碳氢化合物的磷酸氢盐钻井液
    • WO2013003192A1
    • 2013-01-03
    • PCT/US2012/043531
    • 2012-06-21
    • CABOT SPECIALTY FLUIDS, INC.HOWARD, Siv, K.DOWNS, John
    • HOWARD, Siv, K.DOWNS, John
    • C09K8/34C09K8/36C09K8/64C09K8/82
    • C09K8/032C09K8/34C09K8/36C09K8/64C09K8/82
    • A hydrocarbon-based or ester-based drilling fluid or mud is described wherein the drilling fluid contains cesium phosphate. The hydrocarbon-based or ester-based drilling fluid or mud can have, for example, an external phase that contains hydrocarbon fluid and an internal phase that contains cesium phosphate. The hydrocarbon-based drilling fluid or mud can further contain at least one emulsifier or surfactant, and optionally other ingredients. The present invention can permit hydrocarbon-based drilling fluids to be essentially solids-free and may be used without corrosion and/or formation damage problems, for example, due to the use of the cesium phosphate in an internal phase of the hydrocarbon-based or ester-based drilling fluid. The present invention also relates to hydrocarbon-based or ester-based fluids for completion, workover, suspension and packer operations which contain cesium phosphate.
    • 描述了一种烃基或酯基钻井液或泥浆,其中钻井液含有磷酸铯。 烃基或酯基钻井液或泥浆可以具有例如含有烃流体和含有磷酸铯的内相的外部相。 烃基钻井液或泥浆可以进一步含有至少一种乳化剂或表面活性剂,以及任选的其它成分。 本发明可以允许基于烃的钻井液基本上是无固体的,并且可以不使用腐蚀和/或地层损伤问题来使用,例如,由于在烃基的内相中使用磷酸铯或 酯基钻井液。 本发明还涉及含有磷酸铯的用于完成,修井,悬浮和封隔器操作的烃基或酯基流体。
    • 96. 发明申请
    • DUAL-FUNCTION NANO-SIZED PARTICLES
    • 双功能纳米颗粒
    • WO2011159472A3
    • 2012-04-12
    • PCT/US2011038764
    • 2011-06-01
    • BAKER HUGHES INCCREWS JAMES BHUANG TIANPINGMONTEIRO OTHON
    • CREWS JAMES BHUANG TIANPINGMONTEIRO OTHON
    • C09K8/58B82B3/00
    • C09K8/516C09K8/50C09K8/565C09K8/572C09K8/64C09K8/665C09K8/68C09K8/805C09K2208/10E21B43/04E21B43/14E21B43/25E21B43/267E21B47/1015
    • Dual-function nano-sized particles or nanoparticles may be effective at fixating or reducing fines migration and they may facilitate identification of a particular zone in a well having more than one zone. In some embodiments the dual- function nanoparticles are tagged with a detectable material that is distinguishable from the composition of the primary nanoparticle component. In these embodiments, the taggant material rather than the primary component of the nanoparticles may be used to enable identification of a particular zone. The nanoparticles (with or without taggant) may be added to a treatment fluid containing carrier particles such as proppant. The treatment fluid is pumped downhole to one of the zones; each zone receiving its own unique or uniquely- tagged nanoparticles. Should one of the zones fail, the composition of the nanoparticles (or its taggant) produced on the carrier particles may be correlated to the zone from which it was received, and hence produced.
    • 双功能纳米尺寸颗粒或纳米颗粒在固定或减少细粉迁移方面可能是有效的,并且它们可以有助于鉴定具有多于一个区域的孔中的特定区域。 在一些实施方案中,双功能纳米颗粒用可检测的材料标记,其可与初级纳米颗粒组分的组成区分开。 在这些实施方案中,标记剂材料而不是纳米颗粒的主要组分可用于使得能够识别特定区域。 可以将纳米颗粒(具有或不具有标签剂)加入到含有载体颗粒如支撑剂的处理流体中。 处理液在井下泵送到其中一个区域; 每个区域接收其自己独特或唯一标记的纳米粒子。 如果其中一个区域失效,则在载体颗粒上产生的纳米颗粒(或其标签剂)的组成可能与其接收的区域相关,并因此产生。