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    • 74. 发明授权
    • Time-lapsed diffusivity logging for monitoring enhanced oil recovery
    • 用于监测提高石油采收率的耗时扩散测井
    • US07741841B2
    • 2010-06-22
    • US11966551
    • 2007-12-28
    • John EdwardsHemant K. J. Ladva
    • John EdwardsHemant K. J. Ladva
    • G01V3/00
    • G01V3/32
    • The use of time-lapsed NMR diffusivity measurements in an observation well is disclosed. The observation well is cased in the zone of interest with non-magnetic and non-conductive casing that is invisible to the NMR tool. Second, because NMR measurements have a dead zone in front of the antenna depending on the spatial variation of the fixed magnet strength, for example about 2.7 inches, a distance between the casing and the formation is reduced to less than the dead zone length by drilling the observation well at small deviation of about 5° and running the casing without centralizers. Both the casing and the pad-type NMR tool will follow the low side of the borehole, ensuring the measurement volume of the NMR tool is inside the formation and beyond the annulus. With the appropriate observation well completion, time-lapse diffusivity measurements with pad-type NMR tools can address several shortcomings in the current practice of monitoring EOR processes that rely upon changes in density and hydrogen index (HI). Various uses of NMR imaging in wells cased with non-metallic casing are also disclosed.
    • 公开了在观察井中使用经时的NMR扩散率测量。 在非磁性和非导电性外壳的观察区内,观测井套在NMR工具中是不可见的。 第二,由于NMR测量在天线前面具有死区,这取决于固定磁体强度的空间变化,例如约2.7英寸,壳体和地层之间的距离通过钻孔减小到小于死区长度 观察井在小偏差约5°,运行套管没有扶正器。 套管和垫式NMR工具都将跟随钻孔的低侧,确保NMR工具的测量体积在地层内部并超出环空。 通过适当的观测完井,使用垫式NMR工具的延时扩散测量可以解决目前依赖于密度和氢指数(HI)变化的EOR过程的实践中的几个缺点。 还公开了用非金属壳体套管的井中的NMR成像的各种用途。
    • 75. 发明申请
    • MULTIPLE CONCURRENT ACTIVE FILE SYSTEMS
    • 多个并发活动文件系统
    • US20100138394A1
    • 2010-06-03
    • US12698223
    • 2010-02-02
    • David HitzJohn EdwardsBlake Lewis
    • David HitzJohn EdwardsBlake Lewis
    • G06F17/00G06F12/16
    • G06F17/30067G06F2201/84Y10S707/99931Y10S707/99938Y10S707/99952Y10S707/99953
    • A method and apparatus for operating a data storage system is disclosed. An original active file system holds incoming write transactions. Data is written at a selected time to blocks in a data storage device of the original active file system, the data written to blocks which do not hold old data of the data storage system. Pointers to data of the original active file system are written at the selected time to the data storage device, the pointers written to blocks which do not hold old data of the data storage system, the pointers and a previously saved data of the active file system forming a consistency point of the original active file system at the selected time. A new active file system is started using the consistency point of the original active file system at the selected time.
    • 公开了一种用于操作数据存储系统的方法和装置。 原始活动文件系统保存传入的写入事务。 在选定的时间写入数据以在原始活动文件系统的数据存储装置中阻塞数据,该数据被写入不保存数据存储系统的旧数据的块。 原始活动文件系统的数据指针在选定的时间被写入数据存储装置,指针写入不保存数据存储系统的旧数据的块,指针和活动文件系统之前保存的数据 在选定的时间形成原始活动文件系统的一致性点。 在所选择的时间,使用原始活动文件系统的一致性点启动新的活动文件系统。
    • 80. 发明申请
    • Remote access to resouces
    • 远程访问资源
    • US20070088834A1
    • 2007-04-19
    • US11549567
    • 2006-10-13
    • Ivan LitovskiJohn Edwards
    • Ivan LitovskiJohn Edwards
    • G06F15/16
    • H04L67/34H04L63/0272H04L63/0823H04L67/14H04L69/24
    • The invention provides systems and methods for securely transmitting data between a roaming computer and a managed network service over a shared public network. A secure connection is created between the roaming computer and a server computer that hosts or acts as a secure gateway to the managed network service. The connection is set up and established by a client agent installed on the roaming computer and a connection component of the managed service on the server computer. The client agent and the connection component of the managed service operate, on an initial request from the roaming computer to the managed service to negotiate the secure connection using certificate-based client authentication. The client certificate preferably includes user-specific attributes that can be extracted by the connection component and made available to the managed service to apply processing rules specific to the user.
    • 本发明提供了通过共享公共网络在漫游计算机和被管理网络服务之间安全地传输数据的系统和方法。 在漫游计算机和托管或充当到受管网络服务的安全网关的服务器计算机之间创建安全连接。 连接由安装在漫游计算机上的客户端代理和服务器计算机上的受管服务的连接组件设置和建立。 被管理服务的客户端代理和连接组件在从漫游计算机到被管理服务的初始请求下操作,以使用基于证书的客户端认证来协商安全连接。 客户端证书优选地包括可由连接组件提取并使其可用于被管理服务以应用用户特定的处理规则的用户特定属性。