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    • 1. 发明公开
    • APPARATUS AND METHODS FOR CONTROLLING AND COMMUNICATING WITH DOWNHOLE DEVICES
    • 装置和方法,用于控制和地下设备通信
    • EP3181805A1
    • 2017-06-21
    • EP16188952.2
    • 2009-08-05
    • Hunting Titan, Inc.
    • LERCHE, Nolan C.BROOKES, James E.
    • E21B43/1185F42D1/055
    • E21B43/1185E21B41/0021E21B43/119F42D1/055G01V3/18
    • Apparatus and methods for controlling and communicating with one or more tools in a downhole tool string including a tractor (10), an auxiliary tractor tool (130A, 130B, 130C, 130D), a logging tool (132A, 132B), a safety sub (14), a release mechanism (16), a unit (16) containing sensors (90) for monitoring downhole conditions, a setting tool, and a perforating gun (18). Also provided are apparatus and methods for controlling and communicating with one or more perforating guns (18), release devices (16), and explosive devices in a string to be lowered into a wellbore. Control and communication are accomplished by sending signals from the surface to control switches (68A, 68B) in the control units on the tool, with redundant switches for safety, to state machines in the respective control units, each state machine returning a signal verifying switch status to the surface. Control and power functions are accomplished with voltage of different polarities for safety.
    • 装置以及用于控制和在井下工具管柱包括一个牵引器(10),以辅助工具拖拉机(130A,130B,130C,130D),测井工具(132A,132B)与一个或多个工具通信,安全子方法 (14),一个释放机构(16),包含传感器(90),用于监控井下条件,设定工具的单元(16),和一个射孔枪(18)。 这样被提供的装置和用于控制和在字符串与一个或多个射孔枪(18),释放装置(16),和爆炸装置的通信方法被降低到井眼中。 控制和通信是通过在respectivement控制单元从所述表面,以控制在工具上的控制单元的开关(68A,68B)发送信号时,对安全的冗余开关,向状态机,每种状态机返回一个信号验证开关来完成 状态在表面上。 控制和功率功能与安全性不同极性的电压来实现。