Rotary pulser for transmitting information to the surface from a drill string down hole in a well
    4.
    发明授权
    Rotary pulser for transmitting information to the surface from a drill string down hole in a well 有权
    旋转脉冲发生器,用于从井中的钻柱井下向井表面传送信息

    公开(公告)号:US07327634B2

    公开(公告)日:2008-02-05

    申请号:US10888312

    申请日:2004-07-09

    IPC分类号: H04H9/00

    CPC分类号: E21B47/182

    摘要: A rotary pulser for transmitting information to the surface from down hole in a well by generating pressure pulses encoded to contain information. The pressure pulses travel to the surface where they are decoded so as to decipher the information. The pulser includes housing containing a stator forming passages through which drilling fluid flows on its way to the drill bit, a rotor, and a replaceable wear sleeve enclosing the rotor. The rotor has blades that are capable of imparting a varying obstruction to the flow of drilling fluid through the stator passages depending on the circumferential orientation of the rotor, so that rotation of the rotor by a motor generates the encoded pressure pulses. The rotor is located downstream of the stator and the rotor blades are shaped so that when the motor is not in operation, a hydrodynamic opening torque is imparted to the rotor that tends to rotate the rotor blades away from the circumferential orientation that results in the maximum obstruction and toward the circumferential orientation that results in the minimum obstruction. A torsion spring provides a mechanical force that also tends to rotate the rotor into the orientation that provides the minimum flow obstruction.

    摘要翻译: 旋转脉冲发生器,用于通过产生编码为包含信息的压力脉冲将信息传送到井的井下的表面。 压力脉冲行进到它们被解码的表面,以便破译信息。 脉冲发生器包括容纳定子成形通道的壳体,钻孔流体通过该定子成形通道流入钻头,转子和包围转子的可更换的耐磨套筒。 转子具有叶片,其能够根据转子的圆周方向对穿过定子通道的钻井流体的流动施加不同的阻塞,使得马达的转子旋转产生编码的压力脉冲。 转子位于定子的下游,并且转子叶片的形状使得当电动机不工作时,向转子施加流体动力开启扭矩,转子倾向于使转子叶片远离导致最大值的圆周取向 阻塞并朝向导致最小阻塞的圆周方向。 扭转弹簧提供机械力,其也趋向于使转子旋转到提供最小流动阻塞的取向。

    METHOD FOR COMMUNICATION SECURITY AND APPARATUS THEREFOR
    5.
    发明申请
    METHOD FOR COMMUNICATION SECURITY AND APPARATUS THEREFOR 有权
    通信安全方法及其设备

    公开(公告)号:US20100287617A1

    公开(公告)日:2010-11-11

    申请号:US12777570

    申请日:2010-05-11

    IPC分类号: G06F21/00 G06F15/16 G06F17/30

    CPC分类号: H04L63/02 H04L63/1408

    摘要: A FireNet security system in which trustworthy networks, called BlackNets, each comprising One (1) or more client computers, are protected by FireBreaks against attacks from untrustworthy networks, called RedNets. All incoming transactions from the RedNet are examined by the FireBreak to determine if they violate any of a plurality of protection rules stored in a local protection rules database. Any transaction found to be in violation is discarded. Valid transactions are forwarded to the BlackNet. If an otherwise valid transaction is found to be suspicious, the FireBreak will forward to a FireNet Server relevant information relating to that transaction. If the FireNet Server verifies that the transaction is indeed part of an attack, the FireNet Server will create new protection rules suitable to defend against the newly identified source or strategy of attack. Periodically, all FireBreaks in the FireNet system will transfer, directly or indirectly, all new rules.

    摘要翻译: 一个FireNet安全系统,其中称为BlackNets的每个包含一(1)个或更多客户端计算机的可信网络受到FireBreaks的保护,防止称为RedNets的不可信网络的攻击。 FireBreak检查RedNet的所有传入事务,以确定它们是否违反存储在本地保护规则数据库中的多个保护规则。 任何被发现违规的事务被丢弃。 有效的交易将转发到BlackNet。 如果发现其他有效的交易是可疑的,则FireBreak将转发到与该交易相关的FireNet Server相关信息。 如果FireNet服务器验证事务确实是攻击的一部分,FireNet服务器将创建适用于防御新发现的攻击源或策略的新保护规则。 定期地,FireNet系统中的所有FireBreak将直接或间接地转移所有新规则。

    Thread timing for a rotary shouldered connection
    6.
    发明授权
    Thread timing for a rotary shouldered connection 失效
    螺纹定时旋转肩部连接

    公开(公告)号:US5134783A

    公开(公告)日:1992-08-04

    申请号:US723455

    申请日:1991-06-28

    申请人: Carl A. Perry

    发明人: Carl A. Perry

    IPC分类号: G01B3/36 G01B3/48

    CPC分类号: G01B3/48 G01B3/36

    摘要: A method of thread timing for a rotary shouldered connection is presented. A ring gage which has a first and second scribe line thereon is used to establish a male timed rotary connection of a first tool. The angular distance between the first and second scribe lines is the advance timing correction (ATC), i.e., the angular distance between hand tight face-up and full torque make-up of a rotary connection comprising the male timed rotary connection of the first tool and a female timed rotary connection of a second tool. The second scribe line (indicative of the ATC) is transferred onto the first tool. A pin gage which has a third scribe line thereon is used to establish the female connection of the second tool. The third scribe line on the pin gage corresponds to the first scribe line on the ring gage. The third scribe line is transferred onto the second tool. When the first and second tools are rotatively connected at full torque, the transferred lines on the tools are in general angular alignment. These transferred lines provide the angular data for machining of the tools (e.g., machining of hatches or other features to house directional formation evaluation sensors or the like).

    摘要翻译: 提出了一种旋转肩部连接的螺纹定时方法。 使用其上具有第一和第二划线的环形计量器来建立第一工具的男性定时旋转连接。 第一和第二划线之间的角距是提前定时校正(ATC),也就是包括第一工具的男性定时旋转连接的旋转连接的手紧正面和全扭矩组合之间的角距离 以及第二工具的女性定时旋转连接。 第二划线(指示ATC)被转移到第一工具上。 使用其上具有第三划线的针规来建立第二工具的阴连接。 针规上的第三个划线对应于环规上的第一个划线。 第三划线被转移到第二个工具上。 当第一和第二工具以全扭矩旋转连接时,工具上的传输线通常为角度对准。 这些传送线提供用于加工工具的角度数据(例如,加工舱口或其他特征以容纳定向成形评估传感器等)。

    Formation density logging MWD apparatus
    9.
    发明授权
    Formation density logging MWD apparatus 失效
    形成密度登录MWD装置

    公开(公告)号:US5134285A

    公开(公告)日:1992-07-28

    申请号:US642314

    申请日:1991-01-15

    IPC分类号: E21B47/01 G01V5/12

    CPC分类号: E21B47/011 G01V5/12

    摘要: A measurement-while-drilling (MWD) density tool is provided which incorporates a single gamma ray source and a pair of longitudinally displaced and mutually aligned detector assemblies (i.e., dual scintillation counters). A nuclear source is mounted in a pocket in the sub wall and partially surrounded by gamma ray shielding. The subwall section adjacent the source is expanded radially so as to define a lobe which displaces mud thus reducing borehole and mudcake effects. The two detector assemblies are mounted within a cavity or hatch formed in the subwall and enclosed by a detector hatch cover under ambient pressure. The detector assemblies are fixedly spaced from the source and are also partially surrounded by gamma ray shielding to provide good formation response. The hatch cover is secured to the sub by bolts and contains radiation transparent windows therethrough in alignment with the detector assemblies. A threaded-on fluid displacement sleeve is positioned on the sub and over the detector hatch cover. This sleeve has several important functions including the displacement of borehole fluids, reducing mudcaking which might have an adverse effect on the measurement and maintaining a relatively constant formatio to detector distance. The sleeve is full gage (with respect to the borehole diameter) and includes radiation transparent windows that are positioned over the hatch cover windows in a manner which optimizes the response of the tool. The sleeve includes blades which are configured such as to provide adequate flow area in the annulus between the density sub and formation wall.

    摘要翻译: 提供了一种钻探测量(MWD)密度工具,其包括单个伽马射线源和一对纵向位移和相互对准的检测器组件(即双重闪烁计数器)。 核源安装在子壁的口袋中,并被伽马射线屏蔽部分地包围。 靠近源的底壁部分径向扩张,以便限定一个叶片,从而排除泥浆,从而减少钻孔和泥饼效应。 两个检测器组件安装在形成在底板中的空腔或舱口内,并在环境压力下由检测器舱口盖封闭。 检测器组件与源固定地间隔开并且还被伽马射线屏蔽部分地包围以提供良好的地层响应。 舱口盖通过螺栓固定到副处,并且包含通过其与检测器组件对准的辐射透明窗口。 带螺纹的流体移动套筒定位在检测器舱盖上的副和上方。 该套筒具有几个重要功能,包括钻孔流体的位移,减少了可能对测量产生不利影响的泥浆,并保持与检测器距离相对恒定的格式。 套筒是满量程(相对于钻孔直径),并且包括以优化工具的响应的方式定位在舱口盖窗口上方的辐射透明窗口。 套筒包括叶片,其被构造成在密度子层和地层壁之间的环空中提供足够的流动面积。

    Method for communication security and apparatus therefor
    10.
    发明授权
    Method for communication security and apparatus therefor 有权
    通信安全方法及其设备

    公开(公告)号:US07152240B1

    公开(公告)日:2006-12-19

    申请号:US09624923

    申请日:2000-07-25

    CPC分类号: H04L63/02 H04L63/1408

    摘要: A FireNet security system in which trustworthy networks, called BlackNets, each comprising One (1) or more client computers, are protected by FireBreaks against attacks from untrustworthy networks, called RedNets. All incoming transactions from the RedNet are examined by the FireBreak to determine if they violate any of a plurality of protection rules stored in a local protection rules database. Any transaction found to be in violation is discarded. Valid transactions are forwarded to the BlackNet. If an otherwise valid transaction is found to be suspicious, the FireBreak will forward to a FireNet Server relevant information relating to that transaction. If the FireNet Server verifies that the transaction is indeed part of an attack, the FireNet Server will create new protection rules suitable to defend against the newly identified source or strategy of attack. Periodically, all FireBreaks in the FireNet system will transfer, directly or indirectly, all new rules.

    摘要翻译: 一个FireNet安全系统,其中称为BlackNets的每个包含一(1)个或更多客户端计算机的可信网络受到FireBreaks的保护,防止称为RedNets的不可信网络的攻击。 FireBreak检查RedNet的所有传入事务,以确定它们是否违反存储在本地保护规则数据库中的多个保护规则。 任何被发现违规的事务被丢弃。 有效的交易将转发到BlackNet。 如果发现其他有效的交易是可疑的,则FireBreak将转发到与该交易相关的FireNet Server相关信息。 如果FireNet服务器验证事务确实是攻击的一部分,FireNet服务器将创建适用于防御新发现的攻击源或策略的新保护规则。 定期地,FireNet系统中的所有FireBreak将直接或间接地转移所有新规则。