WELL SHUT IN DEVICE
    2.
    发明申请
    WELL SHUT IN DEVICE 审中-公开

    公开(公告)号:WO2013064658A3

    公开(公告)日:2013-05-10

    申请号:PCT/EP2012/071753

    申请日:2012-11-02

    IPC分类号: E21B34/16

    摘要: There are certain wellhead emergencies that present a danger in that it is extremely hazardous to approach the well close enough to activate the manual emergency shut in valve. An additional way of actuating the shut-in valve is disclosed, employing a remote handheld radio controller. Thus, we describe a well for extraction of hydrocarbons, and an associated control system, comprising a flow conduit for the hydrocarbons leading from a subsurface region to an above-surface region, a normally-closed shut-in valve located in the subsurface region of the flow conduit, a hydraulic system arranged to cause the shut-in valve to open when the hydraulic system is pressurised, and a release valve for releasing pressure in the hydraulic system, a wireless interface having a unique identifier, and being adapted to open the release valve on receipt of a wireless communication from a remote device, and a plurality of remote devices, each comprising a wireless transmitter compatible with the wireless interface and able to transmit control instructions to the wireless interface, at least one control instruction in any sequence of control instructions issued by the remote device induding the unique identifier, wherein the wireless interface is adapted to ignore control instructions containing an identifier differing from the unique identifier. A pressure sensor is ideally provided in the hydraulic system, to detect the pressure of the hydraulic fluid in the hydraulic system. The wireless interface is preferably adapted to transmit data relating to this detected pressure, allowing users to confirm that the shut-in valve has operated. The plurality of remote devices ideally each include a directional antenna for communicating with the wireless interface, which assists in a number of ways.

    APPARATUS FOR TRANSMITTING INSTRUMENTATION SIGNALS OVER POWER CONDUCTORS
    3.
    发明申请
    APPARATUS FOR TRANSMITTING INSTRUMENTATION SIGNALS OVER POWER CONDUCTORS 审中-公开
    用于传输功率传感器的仪表信号的装置

    公开(公告)号:WO1993005272A1

    公开(公告)日:1993-03-18

    申请号:PCT/GB1992001630

    申请日:1992-09-07

    IPC分类号: E21B47/12

    摘要: A downhole instrumentation system (1) comprises one or more transducers (11-14) coupled in a DC current circuit between the star point (18) of an electrical submersible pump (2) and the chassis (15). A sensing circuit including a DC power supply (7) and an ammeter (8) is arranged to monitor the current drawn. The system includes active electronic components which provide a sequence of signals that may include reference and measuring signals or multiplexed signals from the transducers (11-14).

    摘要翻译: 井下仪表系统(1)包括耦合在电潜泵(2)的星点(18)和底盘(15)之间的直流电流回路中的一个或多个换能器(11-14)。 包括直流电源(7)和电流表(8)的检测电路被设置为监视所绘制的电流。 该系统包括有源电子部件,其提供可包括来自换能器(11-14)的参考和测量信号或多路复用信号的信号序列。

    DEVICE FOR MEASURING INTERNAL DIMENSIONS OF TUBES
    4.
    发明申请
    DEVICE FOR MEASURING INTERNAL DIMENSIONS OF TUBES 审中-公开
    用于测量管内部尺寸的装置

    公开(公告)号:WO1985002674A1

    公开(公告)日:1985-06-20

    申请号:PCT/GB1984000426

    申请日:1984-12-10

    IPC分类号: G01B07/12

    CPC分类号: G01B7/287 E21B47/08 G01B7/13

    摘要: A measuring apparatus for measuring the internal dimensions of a tube such as a pipe in an oil well includes a central body (1) and number of lateral extending measuring arms comprising pivoted links (31, 32). The links are mounted on the body via slider mechanisms (8, 9, 13, 22) so that the displacement of the inner link end provides a measurement of arm extension. The displacement is measured by a variable inductance device (21, 47), the electrical components of which are shielded from external pressure.

    MONITORING AN ALTERNATING CURRENT COMPONENT OF A DOWNHOLE ELECTRICAL IMBALANCE VOLTAGE
    5.
    发明申请
    MONITORING AN ALTERNATING CURRENT COMPONENT OF A DOWNHOLE ELECTRICAL IMBALANCE VOLTAGE 审中-公开
    监测卧式电气不平衡电压的替代电流分量

    公开(公告)号:WO2010075227A3

    公开(公告)日:2010-08-26

    申请号:PCT/US2009068803

    申请日:2009-12-18

    发明人: ATHERTON ERIC

    IPC分类号: E21B43/12

    CPC分类号: E21B43/128 G01R29/16

    摘要: An apparatus and method are provided for monitoring and controlling a power system of an electrical submersible pump assembly. A sensor monitors an alternating current component of a downhole electrical imbalance voltage at a neutral point of a motor of the electrical submersible pump assembly. The sensor measurement is transmitted to a controller at the surface. The controller analyzes the alternating current component of the downhole electrical imbalance voltage and then adjusting an operation of the electrical submersible pump assembly, or scheduling maintenance, accordingly. Also, a model of a power system of an electrical submersible pump assembly is created to predict an alternating current component of a downhole electrical imbalance voltage. The model is modified as necessary responsive to measurements from the sensor. A controller adjusts surface currents according to the model of the power system to match downhole motor drive currents to thereby optimize the power system.

    摘要翻译: 提供了一种用于监测和控制电潜泵组件的电力系统的装置和方法。 传感器监测电潜水泵组件的电机的中性点处的井下电不平衡电压的交流分量。 传感器测量被传送到表面的控制器。 控制器分析井下电气不平衡电压的交流分量,然后相应地调节电潜泵组件的运行或调度维护。 此外,产生电潜泵组件的动力系统的模型以预测井下电不平衡电压的交流分量。 该模型根据传感器的测量需要进行修改。 控制器根据电力系统的型号调整表面电流,以匹配井下电机驱动电流,从而优化电力系统。

    REMOTE AREA SENSOR SYSTEM
    6.
    发明申请
    REMOTE AREA SENSOR SYSTEM 审中-公开
    远程传感器系统

    公开(公告)号:WO2007085850A1

    公开(公告)日:2007-08-02

    申请号:PCT/GB2007/000275

    申请日:2007-01-26

    IPC分类号: H04Q9/00 G08C17/02

    摘要: A communications system comprises a primary wireless network and at least one secondary wireless networks, the primary and secondary wireless networks differing in at least one characteristic, at least one sensor unit comprising a means for sensing a parameter and a node of that secondary network adapted to transmit data relating to the parameter via that secondary network, at least one local data gathering point associated with the at least one secondary wireless network, incorporating a node of that secondary wireless network, a node of the primary network, and a control unit adapted to receive data signals from the at least one sensor unit via the secondary network, construct an outgoing data signal incorporating information from the received data signal, and transmit the outgoing data signal via the primary network, the primary wireless network being a multipoint radio network. The primary wireless network is optimised for relatively long distance communications, of the order of 10 km, and the secondary network or networks are optimised for relatively short distance communications of the order of 100m, the radio power of each network being different and appropriate for each transmission distance required. This means that the secondary wireless network can have a restricted power output suitable for use proximate to wellheads, with the result that the range is unlikely to be greater than 1 km. The at least one sensor can be an oil or gas wellhead pressure sensor, preferably self powered. The nodes of the primary network may contain GPS receivers, to synchronise the sensors with which the nodes communicate, and aid routing performance of the primary wireless meshing network.

    摘要翻译: 通信系统包括主无线网络和至少一个辅助无线网络,主要和次要无线网络在至少一个特征中不同,至少一个传感器单元包括用于感测参数的装置和适于 通过所述辅助网络传送与所述参数有关的数据,与所述至少一个辅助无线网络相关联的至少一个本地数据收集点,并入所述辅助无线网络的节点,所述主要网络的节点以及适于 经由次级网络从至少一个传感器单元接收数据信号,构建从接收到的数据信号中合并信息的输出数据信号,并通过主网络发送输出数据信号,主无线网络是多点无线电网络。 主要无线网络针对距离为10公里的相对长距离通信进行了优化,对于距离为100米的短距离通信,二级网络或网络进行了优化,每个网络的无线电功率不同,适合于每个 传输距离要求。 这意味着次级无线网络可以具有适合在井口附近使用的受限功率输出,结果是该范围不大于1km。 所述至少一个传感器可以是油或气体井口压力传感器,优选是自供电的。 主网络的节点可以包含GPS接收器,以使与节点通信的传感器同步,并辅助主无线网状网络的路由性能。

    CORROSION MONITORING PROBE
    7.
    发明申请
    CORROSION MONITORING PROBE 审中-公开
    腐蚀监测探头

    公开(公告)号:WO2006059136A1

    公开(公告)日:2006-06-08

    申请号:PCT/GB2005/004646

    申请日:2005-12-02

    发明人: ATHERTON, Eric

    IPC分类号: G01N17/00

    CPC分类号: G01N17/04

    摘要: A compliant seal for a probe can be maintained in compression using a separate spring element mounted inside the probe, which maintains a force on the element with respect to the body such that the seal is always in compression. Thus, a sensor comprises a housing having an aperture, through which at least one element is exposed to an environment, and a seal disposed in the aperture between the housing and the element, the seal being urged into a sealing state by a force exerted on the seal and created by a biasing means located within the housing. The force can be transmitted to the seal via the element, enabling the seal to be compressed by the force between a seat and the element. Also disclosed is a pressure-balancing mechanism, whereby the inside of the probe is filled with a non-corrosive fluid at substantially the same pressure as the corrosive medium on the exterior of the probe. Thus, a sensor comprises a housing with an opening allowing ingress of fluid from the environment external thereto into the interior of the housing, wherein the opening leads to a closed bellows within the housing, a remainder of the interior being filled with a fluid. Finally, such sensors benefit from the inclusion of a corrodible fuse within the body of the probe, such that the occurrence of an open-circuit in this fuse provides an early warning of corrosive fluid ingress into the probe. Typically, these measures will be most useful in a corrosion sensor.

    摘要翻译: 可以使用安装在探针内部的单独的弹簧元件来保持用于探针的柔顺密封件,该单独的弹簧元件相对于主体保持元件上的力,使得密封件始终处于压缩状态。 因此,传感器包括具有孔的壳体,至少一个元件暴露于环境中,以及设置在壳体和元件之间的孔中的密封件,密封件被施加在其上的力推动到密封状态 密封件并由位于壳体内的偏置装置产生。 力可以通过元件传递到密封件,使得密封件能够通过座椅和元件之间的力被压缩。 还公开了一种压力平衡机构,由此探针的内部充满与探针外部的腐蚀介质基本相同的压力的非腐蚀性流体。 因此,传感器包括具有开口的壳体,允许流体从外部的环境进入壳体的内部,其中开口通向壳体内的封闭波纹管,内部的其余部分填充有流体。 最后,这样的传感器受益于在探针体内包含可腐蚀的保险丝,使得在该保险丝中的开路的发生提供了腐蚀性流体进入探头的早期警告。 通常,这些措施在腐蚀传感器中将是最有用的。

    METHOD FOR A SOLID PHASE SYNTHESIS OF A LINEAR COMBINATION OF AMINO ACID RESIDUES
    8.
    发明申请
    METHOD FOR A SOLID PHASE SYNTHESIS OF A LINEAR COMBINATION OF AMINO ACID RESIDUES 审中-公开
    氨基酸残留物的线性组合的固相合成方法

    公开(公告)号:WO1986003494A1

    公开(公告)日:1986-06-19

    申请号:PCT/GB1985000573

    申请日:1985-12-11

    IPC分类号: C07K01/04

    CPC分类号: C07K1/088 Y02P20/55

    摘要: Method for a solid phase synthesis of a linear combination of amino acid residues, linked via peptide bonds, starting with an amino acid residue covalently linked to a support and protected by an N-alpha-amino protecting group, comprising the following steps: (a) removing the N-alpha-amino protecting group to obtain an N-alpha-amino group, (b) adding an amino acid residue protected by an N-alpha-amino protecting group, via a peptide bond, to the N-alpha-amino group obtained in step (a) by use of a reactive protected amino acid derivative and, where necessary, a catalyst, (c) repeating steps (a) and (b) until the said liner combination has been obtained. According to the invention the said reactive protected amino acid derivative has the acyl group used to form the peptide bond activated as a pentafluorophenyl ester.

    DOWNHOLE TOOL FOR DETERMINING THE TUINNEL DEPTH OF PERFORATION TUNNELS
    10.
    发明申请
    DOWNHOLE TOOL FOR DETERMINING THE TUINNEL DEPTH OF PERFORATION TUNNELS 审中-公开
    用于确定管道隧道深度的井下工具

    公开(公告)号:WO2009133375A3

    公开(公告)日:2011-08-18

    申请号:PCT/GB2009001108

    申请日:2009-05-01

    摘要: A means of investigating the quality and/or nature of perforations in a downhole environment is disclosed. A "pecking1 finger (4) and depth measuring probe (40A) that can be axially and radially displaced enables the perforation to be located and its depth determined, through sequentially pecking around the wall lining in patterns such as radial, axial, and spiral sequences. By swinging a pecking finger that supports a depth measuring probe or cable with a bullet or conically shaped tip and measuring the displacement of the finger, the edge and centre of the hole can be determined with the largest displacement being when the tip is fully in the hole. When this position has been determined, the depth measuring cable is deployed and the depth of the perforation can be established by both an increase in the force required to push the cable and by the displacement of the pecking finger as it is pushed back by the reaction forces on the cable. Thus, a downhole tool comprises a elongate housing for insertion into a downhole environment, from which a probe extends radially by a variable amount, means for driving the probe in a radial direction, and means for sensing resistance to outward radial movement of the probe.

    摘要翻译: 公开了一种调查井下环境中穿孔质量和/或性质的方法。 可以轴向和径向移位的“啄食1手指(4)和深度测量探针(40A)使得能够定位穿孔并且通过依次以诸如径向,轴向和螺旋序列的图案啄围壁衬垫来确定其深度 通过摆动支撑深度测量探针或电缆的啄食手指,其具有子弹或圆锥形尖端并测量手指的位移,可以确定孔的边缘和中心,当尖端完全处于最大位移时 当确定该位置时,展开深度测量电缆,并且可以通过推动电缆所需的力的增加和被推回的啄食手指的位移两者来建立穿孔的深度 因此,井下工具包括用于插入井下环境的细长壳体,探头从该井下径向径向延伸可变量,我 用于沿径向方向驱动探头,以及用于感测对探针向外径向运动的阻力的装置。