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26 条记录 (耗时 0.028 秒)

    Optical architectures for microvolume laser-scanning cytometers
    5.
    发明授权
    Optical architectures for microvolume laser-scanning cytometers 失效
    用于微体积激光扫描细胞仪的光学架构

    公开(公告)号：US06603537B1

    公开(公告)日：2003-08-05

    申请号：US09378259

    申请日：1999-08-20

    申请人： Louis J. Dietz ,  Ian Walton ,  Scott Norton

    发明人： Louis J. Dietz ,  Ian Walton ,  Scott Norton

    IPC分类号： G01J330

    CPC分类号： G01N15/1475 ,  G01N15/1434 ,  G01N15/1484

    摘要： Methods and instrumentation for performing charge coupled device (CCD)-based confocal spectroscopy with a laser spot array are provided. The methods and instruments of the invention are useful in any spectroscopic application, including, but not limited to, microscopy and microvolume laser scanning cytometry (MLSC).

    摘要翻译： 提供了一种用激光点阵进行基于电荷耦合器件（CCD）的共聚焦光谱法的方法和仪器。 本发明的方法和仪器在任何光谱应用中是有用的，包括但不限于显微镜和微体积激光扫描细胞计数（MLSC）。

    Perforation strategy for heterogeneous proppant placement in hydraulic fracturing
    6.
    发明授权
    Perforation strategy for heterogeneous proppant placement in hydraulic fracturing 有权
    水力压裂中异质支撑剂放置穿孔策略

    公开(公告)号：US08540024B2

    公开(公告)日：2013-09-24

    申请号：US12667073

    申请日：2007-07-03

    申请人： Ivan Vitalievich Kosarev ,  Oleg Olegovich Medvedev ,  Anatoly Vladimirovich Medvedev ,  Ian Walton

    发明人： Ivan Vitalievich Kosarev ,  Oleg Olegovich Medvedev ,  Anatoly Vladimirovich Medvedev ,  Ian Walton

    IPC分类号： E21B43/267

    CPC分类号： E21B43/267 ,  E21B43/11

    摘要： Hydraulic fracturing an individual reservoir fracturing layer of a subterranean formation to produce heterogeneous proppant placement is given in which pillars of proppant are placed such that the pillars do not extend the entire height of the fracture (for a vertical fracture) but are themselves interrupted by channels so that the channels between the pillars form pathways that lead to the wellbore. The method combines methods of introducing slugs of proppant-carrying and proppant-free fluids through multiple clusters of perforations within a single fracturing layer of rock, with methods of ensuring that the slugs exiting the individual clusters do not merge.

    摘要翻译： 给出地下地层单个储层压裂层的水力压裂以产生不均匀的支撑剂放置，其中支撑剂的支柱被放置成使得支柱不延伸断裂的整个高度（对于垂直断裂），但是本身被通道所中断 使得柱之间的通道形成通向井筒的通路。 该方法结合了通过在单个岩石压裂层内的多个穿孔簇引入支撑剂载体和不含支撑剂的流体的lug combines的方法，确保离开各个簇的s do不合并的方法。

    Perforating Optimized for Stress Gradients Around Wellbore
    8.
    发明申请
    Perforating Optimized for Stress Gradients Around Wellbore 有权
    孔眼周围应力梯度的穿孔优化

    公开(公告)号：US20070050144A1

    公开(公告)日：2007-03-01

    申请号：US11162195

    申请日：2005-08-31

    申请人： Brenden Grove ,  Ian Walton

    发明人： Brenden Grove ,  Ian Walton

    IPC分类号： G01V1/40

    CPC分类号： E21B43/119

    摘要： A technique includes determining a stress tensor in a formation that surrounds a wellbore. The stress tensor varies with respect to the wellbore. The technique includes running a perforating charge into the wellbore to perforate the formation and performing at least one of selecting the perforating charge and orienting the perforating charge in the wellbore based at least in part on the determination of the stress tensor.

    摘要翻译： 一种技术包括确定围绕井筒的地层中的应力张量。 应力张量相对于井筒变化。 该技术包括将穿孔电荷运送到井筒中以使地层穿孔，并且至少部分地基于应力张量的确定，执行选择射孔荷载和使钻孔中的射孔荷载定向中的至少一种。

    Method and Apparatus for Reducing Pressure in a Perforating Gun
    10.
    发明申请
    Method and Apparatus for Reducing Pressure in a Perforating Gun 有权
    用于降低穿孔枪压力的方法和装置

    公开(公告)号：US20050236183A1

    公开(公告)日：2005-10-27

    申请号：US10709250

    申请日：2004-04-23

    申请人： Brenden Grove ,  Lawrence Behrmann ,  Ian Walton ,  Philip Kneisl ,  Andrew Werner

    发明人： Brenden Grove ,  Lawrence Behrmann ,  Ian Walton ,  Philip Kneisl ,  Andrew Werner

    IPC分类号： E21B20060101 ,  E21B7/00 ,  E21B43/116 ,  E21B43/119

    CPC分类号： E21B43/119 ,  Y10S102/704

    摘要： An apparatus for reducing the post-detonation pressure of a perforating gun, the apparatus including a perforating gun carrying at least one explosive charge, wherein when the explosive charge is detonated the explosive charge produces a pressurized detonation gas, and a mechanism for reducing the pressure of the detonation gas proximate the perforating gun. The detonation gas pressure is desirably reduced in a time frame sufficient to create a dynamic underbalance condition to facilitate a surge flow of fluid from a reservoir into a wellbore. The pressure reduction mechanism may include singularly or in combination a heat sink to reduce the temperature of the detonation gas, a reactant to recombine with the reactant gas and reduce the molar density of the detonation gas, and a physical compression mechanism to utilize the waste energy of the detonation gas to create work, simultaneously reducing the temperature of the gas and the molar density of the detonation gas.

    摘要翻译： 一种用于降低射孔枪的爆震后压力的装置，该装置包括一个携带至少一种炸药的射孔枪，其中当炸药被引爆时，炸药产生加压的爆震气体，以及用于降低压力的机构 靠近射孔枪的爆炸气体。 期望在足以产生动态不平衡条件的时间框架内减小爆震气体压力，以促进流体从储层涌入井眼的浪涌流。 减压机构可以单独地或组合地使用散热器来降低爆震气体的温度，与反应气体重新组合的反应物并降低爆震气体的摩尔密度，以及物理压缩机构以利用废能 的爆炸气体以产生作用，同时降低气体的温度和爆震气体的摩尔密度。