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    • 25. 发明申请
    • TREE PLUG
    • 树皮
    • WO2006095160A1
    • 2006-09-14
    • PCT/GB2006/000815
    • 2006-03-07
    • CALEDYNE LIMITEDMARTIN, David, GlenVAN DORT, Roland, MarcelSINCLAIR, Ewan
    • MARTIN, David, GlenVAN DORT, Roland, MarcelSINCLAIR, Ewan
    • E21B33/043E21B33/035
    • E21B33/035E21B2033/005
    • The invention relates to a tree plug for a tree of the type used in the oil and gas exploration and production industry. The invention also relates to a plug and to a lock adapted to be located in various types of downhole tubing, and to a method of plugging a tree bore. In one embodiment, a tree plug (16,17) for a tree (10) having a main tree bore (14) is disclosed, the tree plug having a plug body (22) , a number of locking members (24) mounted for radial movement relative to the plug body between retracted and extended positions, a radially expandable seal element (26) , and a mandrel (28) . The mandrel is translated relative to the plug body to urge the locking- members to the extended position, and to exert an axial force on the seal element to radially expand the seal element, to thereby lock and seal the plug within the tree bore.
    • 本发明涉及一种用于石油和天然气勘探和生产行业类型树的树塞。 本发明还涉及适于位于各种类型的井下管道中的塞子和锁,以及堵塞树木孔的方法。 在一个实施例中,公开了一种用于具有主树孔(14)的树(10)的树形塞(16,17),所述树塞具有插头主体(22),多个锁定构件(24)安装用于 在缩回位置和延伸位置之间相对于塞体的径向运动,径向可膨胀的密封元件(26)和心轴(28)。 心轴相对于插塞主体平移以将锁定构件推动到延伸位置,并且在密封元件上施加轴向力以径向扩张密封元件,从而将插头锁定并密封在树孔内。
    • 30. 发明申请
    • METHOD AND APPARATUS FOR DATA COMMUNICATION WITHIN A PHYSICAL LINK LAYER OF A COMMUNICATIONS SYSTEM
    • 在通信系统的物理链路层中进行数据通信的方法和装置
    • WO2006016129A1
    • 2006-02-16
    • PCT/GB2005/003086
    • 2005-08-05
    • ELONICS LIMITEDSRODZINSKI, David
    • SRODZINSKI, David
    • H04L25/49
    • H04L27/18H04J3/12H04J9/00
    • A method and apparatus that permits direct communication of information between elements within a physical link layer of a communication system is described. This is achieved by exploiting existing relevant standards to transmit a quantity of additional data by encoding it as an additional low frequency phase modulation on an existing data information signal transmitted within the communications system. Importantly the additional information is effectively transparent to the normally transmitted data signals and so these signals are not corrupted by the presence of the additional data while no extra bandwidth requirement is placed on the communications system. The described method and apparatus is architecturally efficient and leads to a solution that exhibits an improved performance, cost and size.
    • 描述允许在通信系统的物理链路层内的元件之间直接通信信息的方法和装置。 这是通过利用现有的相关标准来通过将其编码为在通信系统内传输的现有数据信息信号上的附加低频相位调制来传送附加数据的量来实现的。 重要的是,附加信息对于正常发送的数据信号是有效的透明的,因此在通信系统没有额外的带宽要求的情况下,这些信号不会被附加数据的存在所破坏。 所描述的方法和装置在架构上是有效的,并且导致显示出改进的性能,成本和尺寸的解决方案。