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公开(公告)号：US5375658A
公开(公告)日：1994-12-27
申请号：US68425
申请日：1993-05-27
CPC分类号： E21B49/081 , E21B34/066 , E21B34/085 , E21B2034/007
摘要： A downhole shut-in tool includes in one aspect a pilot valve which when opened places a differential pressure across a piston which in turn operably engages a shut-in valve element to close the shut-in tool. An electronic timer assembly and electric drive motor are provided for controlling the action of the pilot valve. The drive motor is controlled by a load sensor which senses that the motor has stalled when an actuator engages a movement limiting abutment. In another aspect a pilot value is provided which can selectively communicate the pressure differential across the piston so as to repeatedly open and close the shut-in valve element. Efficient methods of drawdown and buildup testing using such an automated multiple operating shut-in tool are provided. Associated automated sampling tools are also disclosed.
摘要翻译： 井下关闭工具在一个方面包括先导阀，其在打开时将压差跨越活塞，其又可操作地接合关闭阀元件以闭合闭合工具。 提供电子定时器组件和电驱动马达用于控制先导阀的动作。 驱动电动机由负载传感器控制，负载传感器感测到当致动器接合移动限制支座时电动机已经停转。 在另一方面，提供了先导值，其可以选择性地连通活塞上的压力差，以便重复地打开和关闭关闭阀元件。 提供了使用这种自动化多操作关闭工具的有效的缩小和累积测试方法。 还公开了相关的自动采样工具。
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公开(公告)号：US5234057A
公开(公告)日：1993-08-10
申请号：US868832
申请日：1992-04-14
CPC分类号： E21B49/081 , E21B34/066 , E21B34/085 , E21B2034/007
摘要： A downhole shut-in tool includes in one aspect a pilot valve which when opened places a differential pressure across a piston which in turn operably engages a shut-in valve element to close the shut-in tool. An electronic timer assembly and electric drive motor are provided for controlling the action of the pilot valve. The drive motor is controlled by a load sensor which senses that the motor has stalled when an actuator engages a movement limiting abutment. In another aspect a pilot valve is provided which can selectively communicate the pressure differential across the piston so as to repeatedly open and close the shut-in valve element. Efficient methods of drawdown and buildup testing using such an automated multiple operating shut-in tool are provided. Associated automated sampling tools are also disclosed.
摘要翻译： 井下关闭工具在一个方面包括先导阀，其在打开时将压差跨越活塞，其又可操作地接合关闭阀元件以闭合闭合工具。 提供电子定时器组件和电驱动马达用于控制先导阀的动作。 驱动电动机由负载传感器控制，负载传感器感测到当致动器接合移动限制支座时电动机已经停转。 在另一方面，提供了一个先导阀，其可以选择性地连通活塞上的压力差，以便重复地打开和关闭关闭阀元件。 提供了使用这种自动化多操作关闭工具的有效的缩小和累积测试方法。 还公开了相关的自动采样工具。
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公开(公告)号：US5332035A
公开(公告)日：1994-07-26
申请号：US69351
申请日：1993-05-27
CPC分类号： E21B34/066 , E21B34/085 , E21B49/081
摘要： A downhole shut-in tool includes in one aspect a pilot valve which when opened places a differential pressure across a piston which in turn operably engages a shut-in valve element to close the shut-in tool. An electronic timer assembly and electric drive motor are provided for controlling the action of the pilot valve. The drive motor is controlled by a load sensor which senses that the motor has stalled when an actuator engages a movement limiting abutment. In another aspect a pilot valve is provided which can selectively communicate the pressure differential across the piston so as to repeatedly open and close the shut-in valve element. Efficient methods of drawdown and buildup testing using such an automated multiple operating shut-in tool are provided. Associated automated sampling tools are also disclosed.
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公开(公告)号：US5279363A
公开(公告)日：1994-01-18
申请号：US68068
申请日：1993-05-27
CPC分类号： E21B49/081 , E21B34/066 , E21B34/085
摘要： A downhole shut-in tool includes in one aspect a pilot valve which when opened places a differential pressure across a piston which in turn operably engages a shut-in valve element to close the shut-in tool. An electronic timer assembly and electric drive motor are provided for controlling the action of the pilot valve. The drive motor is controlled by a load sensor which senses that the motor has stalled when an actuator engages a movement limiting abutment. In another aspect a pilot valve is provided which can selectively communicate the pressure differential across the piston so as to repeatedly open and close the shut-in valve element. Efficient methods of drawdown and buildup testing using such an automated multiple operating shut-in tool are provided. Associated automated sampling tools are also disclosed.
摘要翻译： 井下关闭工具在一个方面包括先导阀，其在打开时将压差跨过活塞进行压差，该活塞又可操作地接合关闭阀元件以关闭闭合工具。 提供电子定时器组件和电驱动马达用于控制先导阀的动作。 驱动电动机由负载传感器控制，负载传感器感测到当致动器接合移动限制支座时电动机已经停转。 在另一方面，提供了一个先导阀，其可以选择性地连通活塞上的压力差，以便重复地打开和关闭关闭阀元件。 提供了使用这种自动化多操作关闭工具的有效的缩小和累积测试方法。 还公开了相关的自动采样工具。
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公开(公告)号：US5329811A
公开(公告)日：1994-07-19
申请号：US13591
申请日：1993-02-04
申请人： Roger L. Schultz , William L. Bohan
发明人： Roger L. Schultz , William L. Bohan
CPC分类号： E21B49/081
摘要： Apparatus and methods are provided for measuring a parameter of a hydrocarbon-bearing well fluid sample while the sample is still in place in the well and at downhole pressure and temperature conditions. A tool is lowered into the well to a downhole location. A well fluid sample is trapped in the tool at the downhole location. While the tool remains within the well, the volume of the well fluid sample is expanded while repeatedly measuring the pressure of the trapped well fluid sample at different volumes and thereby generating pressure versus volume data for the trapped well fluid sample. From this data, various parameters such as bubble-point pressure and compressibility of the sample can be readily obtained. The apparatus is suited for drawing and testing multiple samples in succession. After each sample is tested, it is expelled from the tool so that another sample can be taken. The data can be stored for subsequent analysis at the surface or it can be transmitted to the surface for real time analysis.
摘要翻译： 提供的装置和方法用于测量含烃井流体样品的参数，同时样品仍然在井中以及井下压力和温度条件下。 一个工具下沉到井中到井下位置。 良好的流体样品被困在井下位置的工具中。 当工具保持在井内时，井流体样品的体积扩大，同时重复测量不同体积下被捕获的井流体样品的压力，从而产生被捕获的井流体样品的压力对体积数据。 从该数据可以容易地获得各种参数，例如泡点压力和样品的压缩性。 该设备适用于连续绘制和测试多个样品。 每个样品经过测试后，将其从工具中排出，以便可以取出另一个样品。 数据可以存储在表面的后续分析中，也可以传输到表面进行实时分析。
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公开(公告)号：US5149984A
公开(公告)日：1992-09-22
申请号：US658478
申请日：1991-02-20
CPC分类号： F02C1/02 , E21B34/06 , E21B34/066 , E21B41/0085
摘要： A downhole electrical power supply apparatus has a high fluid pressure source zone and a low fluid pressure discharge zone each defined at least partially within the apparatus. A fluid powered engine provides rotational mechanical output and is powered by fluid flowing from the source zone through the engine to the discharge zone. An electrical powered generator converts the rotational mechanical output of the engine into electrical output.
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公开(公告)号：US5887652A
公开(公告)日：1999-03-30
申请号：US906188
申请日：1997-08-04
申请人： Harold K. Beck , Roger L. Schultz
发明人： Harold K. Beck , Roger L. Schultz
CPC分类号： E21B49/081
摘要： Apparatus and method for testing an open-hole well and obtaining a fluid sample therefrom. The apparatus comprises a compression packer on a drill pipe. Disposed in the drill pipe is a housing, defining a surge chamber therein, and a closure valve in communication with the surge chamber. A fluid sampler is in communication with the surge chamber. In operation, the packer is placed in a set position by setting down weight. The closure valve is pressure actuated so that fluid is flowed from a formation or zone of interest into the surge chamber and then into the sampler. By opening a housing valve at an upper end of the surge chamber, formation fluid may be forced back into the formation or zone of interest by a bull-heading operation. In a preferred embodiment, the packer and drill pipe are disconnectable from the remainder of the apparatus, and the packer is drillable.
摘要翻译： 用于测试露天井并从其获得流体样品的装置和方法。 该设备包括在钻杆上的压缩式封隔器。 设置在钻杆中的是在其中限定缓冲室的壳体和与缓冲室连通的关闭阀。 流体采样器与缓冲室连通。 在操作中，通过减轻重量将封隔器放置在设定位置。 关闭阀被压力致动，使得流体从感兴趣的地层或区域流入缓冲室，然后进入采样器。 通过在缓冲室的上端打开壳体阀，可以通过公牛运行将地层流体强制回到地层或区域中。 在优选实施例中，封隔器和钻杆可与装置的其余部分断开，并且封隔器是可钻的。
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公开(公告)号：US5826662A
公开(公告)日：1998-10-27
申请号：US792744
申请日：1997-02-03
IPC分类号： E21B33/124 , E21B34/12 , E21B49/08 , E21B33/12
CPC分类号： E21B49/081 , E21B33/124 , E21B34/125
摘要： Method and apparatus for testing and sampling open-hole oil and gas wells. The apparatus includes a packer, a surge chamber, a closure valve which may be opened to flow fluid into the surge chamber, and a sampler. The surge chamber may be one of a pair of surge chambers, and the closure valve may be one of a pair of closure valves so that two surges may be carried out prior to obtaining a fluid sample in the sampler. In operation, the packer is placed in a set position by setting down weight. The closure valves are also actuated when weight is set down. The first closure valve has a first predetermined time delay before opening so that the packer may be set, and the second closure valve has a second predetermined time delay so that the packer may be set and the first closure valve opened before a fluid sample is captured. By opening a vent tool at an upper end of the uppermost surge chamber, formation fluid may be forced back into the formation or zone of interest by a bull-heading operation. In a preferred embodiment, portions of the apparatus are detachable in the event of sticking of the apparatus in the well. In the method of the two-surge test, a clean fluid sample for capturing in the sampler is provided. All of the steps are carried out without flowing fluid to the surface.
摘要翻译： 井眼油气井测试和取样方法和装置。 该装置包括封隔器，缓冲室，可打开以将流体流入缓冲室的闭合阀以及采样器。 缓冲室可以是一对缓冲室中的一个，并且闭合阀可以是一对闭合阀中的一个，使得在获取采样器中的流体样品之前可以执行两个浪涌。 在操作中，通过减轻重量将封隔器放置在设定位置。 当重量下降时，关闭阀也被启动。 第一关闭阀在打开之前具有第一预定的时间延迟，使得封隔器可以被设定，并且第二闭合阀具有第二预定时间延迟，使得封隔器可以被设定，并且在流体样品被捕获之前第一闭合阀打开 。 通过在最上面的缓冲室的上端打开排气工具，地层流体可以通过公牛运行而被迫回到地层或区域中。 在优选实施例中，在设备在井中粘附的情况下，装置的部分可拆卸。 在双浪试验的方法中，提供了用于在采样器中捕获的清洁的流体样品。 所有的步骤都是在没有流体流动到表面的情况下进行的。
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公开(公告)号：US5240072A
公开(公告)日：1993-08-31
申请号：US765075
申请日：1991-09-24
申请人： Roger L. Schultz , Harold K. Beck
发明人： Roger L. Schultz , Harold K. Beck
CPC分类号： E21B23/006 , E21B34/108 , E21B49/081
摘要： The invention discloses a multiple sample annulus pressure responsive sampler which allows the collection of samples at different time intervals and at different depth intervals in a wellbore. In one embodiment, the tool contains cylindrical housing means, a power piston, means for biasing the power piston, an oil case, an air case, valve means, valve activation means, and means for sampling the well fluid. In a second embodiment, the valve activating means includes energizing means for energizing an electric motor. In a third embodiment, a rupture disc is used in order to axially move the power piston.
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公开(公告)号：US5103906A
公开(公告)日：1992-04-14
申请号：US602823
申请日：1990-10-24
申请人： Roger L. Schultz , Harold K. Beck
发明人： Roger L. Schultz , Harold K. Beck
CPC分类号： E21B49/082 , E21B34/108 , E21B41/00
摘要： A downhole tool apparatus includes an operating mechanism and a hydraulic timer. The hydraulic timer is operably associated with the operating mechanism for providing a time delay prior to operation of the operating mechanism. The hydraulic timer includes a fluid flow restriction and a spring biased piston which pushes a predetermined volume of hydraulic fluid through the fluid flow restriction.
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