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31.发明公开
公开(公告)号：EP1259702A1
公开(公告)日：2002-11-27
申请号：EP01920195.3
申请日：2001-03-02
发明人： HIRSCH, John, Michele , VINEGAR, Harold, J. , BURNETT, Robert, Rex , SAVAGE, William, Mountjoy , CARL, Frederick, Gordon, Jr.
CPC分类号： E21B47/122 , E21B17/003 , E21B17/028 , E21B34/066 , E21B34/08 , E21B34/16 , E21B41/0085 , E21B43/123 , E21B43/14
摘要： A petroleum well (20) for producing petroleum products that incorporates a system adapted to provide power to a downhole device (50) in the well (20). The system comprises a current impedance device (70) and a downhole power storage device (112). The current impedance device (70) is positioned such that when a time-varying electrical current is transmitted through the portion of a piping structure (30 and/or 40) a voltage potential forms between one side (81) of the current impedance device (70) and another side (82) of the current impedance device (70). The device (112) is adapted to be electrically connected to the piping structure (30 and/or 40) across the voltage potential formed by the current impedance device (70), is adapted to be recharged by the electrical current, and is adapted to be electrically connected to the downhole device (50) to provide power to the downhole device (50) as needed.
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公开(公告)号：EP1250514A1
公开(公告)日：2002-10-23
申请号：EP01911520.3
申请日：2001-01-22
发明人： BURNETT, Robert, Rex , CARL, Frederick, Gordon, Jr. , SAVAGE, William, Mountjoy , VINEGAR, Harold, J.
CPC分类号： E21B47/122 , E21B17/003 , E21B34/066 , E21B34/08 , E21B34/16 , E21B43/122 , E21B43/123 , E21B43/14 , E21B47/12
摘要： A petroleum well having a wireless power and data communication system is provided. The well uses the tubing and/or casing to communicate with and power a plurality of devices, such as sensors and controllable valves. An electrically isolating portion of a tubing hanger at the surface of the well and a ferromagnetic choke downhole may electrically isolate the tubing from the casing and provide a communications path. A plurality of modems positioned downhole along the tubing string communicate sensor information to a modem and a computer located at the surface of the well. Based on an analysis of the sensor information received by the computer, instructions can be communicated along the tubing string to the controllable valves to adjust the flow rate of lift gas passing through the valves.
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公开(公告)号：EP1250513A1
公开(公告)日：2002-10-23
申请号：EP01909683.3
申请日：2001-01-22
发明人： BURNETT, Robert, Rex , CARL, Frederick, Gordon , SAVAGE, William, Mountjoy , VINEGAR, Harold, J.
CPC分类号： E21B47/122 , E21B17/003 , E21B34/066 , E21B34/08 , E21B34/16 , E21B43/122 , E21B43/123 , E21B43/14 , E21B47/101 , E21B47/12 , E21B2041/0028
摘要： A controllable gas-lift well having controllable gas-lift valves and sensors for detecting flow regime is provided. The well uses the tubing and casing to communicate with and power the controllable valve from the surface. Ferromagnetic chokes at the surface and downhole electrically isolate the tubing from the casing. A high band-width, adaptable spread spectrum communication system is used to communicate between the controllable valve and the surface. Sensors, such as pressure, temperature, and acoustic sensors, may be provided downhole to more accurately assess downhole conditions and in particular, flow regime. Operating conditions, such as gas injection rate, back pressure on tubing and position of downhole controllable valves are varied depending on flow regime, downhole conditions, oil production, gas usage and availability, to optimize production. An Artificial Neural Network (ANN) is trained to detect Taylor flow regime using downhole acoustic sensors, plus other sensors as desired. The detection and control system and method thereof is useful in many applications involving multi-phase flow in a conduit.
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公开(公告)号：EP0500343B1
公开(公告)日：1995-11-02
申请号：EP92301364.3
申请日：1992-02-19
申请人： HALLIBURTON COMPANY
发明人： Skinner, Neal G.
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公开(公告)号：EP0456397B1
公开(公告)日：1995-07-19
申请号：EP91303867.5
申请日：1991-04-29
申请人： HALLIBURTON COMPANY
发明人： Baldridge, Morris G.
CPC分类号： F15B21/001 , E21B33/05 , E21B34/16
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公开(公告)号：EP0597704A1
公开(公告)日：1994-05-18
申请号：EP93309016.9
申请日：1993-11-11
申请人： HALLIBURTON COMPANY
CPC分类号： E21B47/18 , E21B34/06 , E21B34/16 , E21B47/124
摘要： An oil or gas well is flow tested by acoustic transmission (68,70) and reception (102) devices for communicating preferably through at least 5,000 feet (1525m) of an annular column of substantially static fluid which is susceptible to gelling which further attenuates the acoustic signals. The apparatus comprises a tubing string (66) including a packer (92), a tester valve (76). an actuator (109) therefor, an acoustic receiver (102). an acoustic transmitter (68,70) and control means (110) responsive to the receiver (102) to control the actuator (109).
摘要翻译： 油或气井通过声学传播（68,70）和接收（102）装置进行流动测试，优选地通过至少5,000英尺（1525m）的基本静态流体的环形柱进行流动，其易于胶凝，这进一步衰减 声信号。 该装置包括一个管柱（66），其包括封隔器（92），一个测试阀（76）。 用于其的致动器（109），声学接收器（102）。 响应于接收器（102）来控制致动器（109）的声发射器（68,70）和控制装置（110）。
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37.发明公开APPARATUS FOR INDUCTIVELY COUPLING SIGNALS BETWEEN A DOWNHOLE SENSOR AND THE SURFACE 失效一个卧室传感器和表面之间的感应耦合信号的设备
公开(公告)号：EP0512063A4
公开(公告)日：1993-12-22
申请号：EP91904366
申请日：1991-01-18
CPC分类号： E21B47/06 , E21B34/16 , E21B41/00 , E21B43/1185 , E21B47/065 , E21B47/122
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公开(公告)号：EP0200535B1
公开(公告)日：1991-04-10
申请号：EP86303259.5
申请日：1986-04-29
申请人： DEVELCO, INC.
发明人： More, Henry S.
CPC分类号： G08C25/04 , E21B34/16 , E21B47/122 , E21B47/124 , Y10T137/402 , Y10T137/8242
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公开(公告)号：EP0200535A3
公开(公告)日：1988-06-22
申请号：EP86303259
申请日：1986-04-29
申请人： DEVELCO, INC.
发明人： More, Henry S.
CPC分类号： G08C25/04 , E21B34/16 , E21B47/122 , E21B47/124 , Y10T137/402 , Y10T137/8242
摘要： A system for verifying the effectiveness of electromagnetic signal control of a subsurface safety valve installed in a well. Signals are transmitted from a surface station to actuate the subsurface installed valve. Signals received at the valve are decoded and information relating to them is stored. A sensor detects actual valve actuation and provides signals indicative thereof which are also stored. After the valve is removed from its downhole installation, the stored signals are read, and the data indicated thereby is compared with data recorded at the time of signal transmission from the surface.
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