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1. 发明授权

US07270185B2 Drilling system and method for controlling equivalent circulating density during drilling of wellbores 有权
标题翻译：钻井系统和钻井过程中控制等效循环密度的方法
公开(公告)号：US07270185B2
公开(公告)日：2007-09-18
申请号：US10191152
申请日：2002-07-09
申请人： Peter Fontana , Larry Watkins , Peter Aronstam
发明人： Peter Fontana , Larry Watkins , Peter Aronstam
IPC分类号： E21B29/12
CPC分类号： E21B47/0001 , E21B7/12 , E21B21/001 , E21B21/08 , E21B33/076 , E21B43/12
摘要： A drilling system for drilling subsea wellbores includes a tubing-conveyed drill bit that passes through a subsea wellhead. Surface supplied drilling fluid flows through the tubing, discharges at the drill bit, returns to the wellhead through a wellbore annulus, and flows to the surface via a riser extending from the wellhead. A flow restriction device positioned in the riser restricts the flow of the returning fluid while an active fluid device controllably discharges fluid from a location below to just above the flow restriction device in the riser, thereby controlling bottomhole pressure and equivalent circulating density (“ECD”). Alternatively, the fluid is discharged into a separate return line thereby providing dual gradient drilling while controlling bottomhole pressure and ECD. A controller controls the energy and thus the speed of the pump in response to downhole measurement(s) to maintain the ECD at a predetermined value or within a predetermined range.
摘要翻译：用于钻井海底井筒的钻井系统包括通过海底井口的管道输送的钻头。表面提供的钻井液流过管道，在钻头处排出，通过井筒环返回井口，并通过从井口延伸的提升管流到表面。定位在提升管中的流量限制装置限制返回流体的流动，而主动流体装置可控制地将流体从下方的位置排放到提升管内的流量限制装置正上方，从而控制井底压力和等效循环密度（“ECD” ）。或者，流体被排放到单独的返回管线中，从而提供双梯度钻井，同时控制井底压力和ECD。控制器响应于井下测量而控制能量并因此控制泵的速度，以将ECD保持在预定值或在预定范围内。

2. 发明申请

US20060124352A1 Control systems and methods for active controlled bottomhole pressure systems 失效
标题翻译：主动控制井底压力系统的控制系统和方法
公开(公告)号：US20060124352A1
公开(公告)日：2006-06-15
申请号：US11221429
申请日：2005-09-08
申请人： Sven Krueger , Volker Krueger , Harald Grimmer , Larry Watkins , Peter Aronstam , Peter Fontana , Roger Fincher
发明人： Sven Krueger , Volker Krueger , Harald Grimmer , Larry Watkins , Peter Aronstam , Peter Fontana , Roger Fincher
IPC分类号： E21B21/08
CPC分类号： B63B21/502 , E21B7/002 , E21B7/128 , E21B7/28 , E21B17/206 , E21B19/002 , E21B19/09 , E21B19/22 , E21B21/00 , E21B21/001 , E21B21/08 , E21B33/076 , E21B43/121 , E21B43/122 , E21B2021/006
摘要： An active differential pressure device (APD device) in fluid communication with a returning fluid creates a differential pressure across the device, which controls pressure below the APD Device. In embodiments, a control unit controls the APD Device to provide a selected pressure differential at a wellbore bottom, adjacent a casing shoe, in an intermediate wellbore location, or in a casing. In one arrangement, the control system is pre-set at the surface such that the APD Device provides a substantially constant pressure differential. In other arrangements, the control system adjusts an operating parameter of the APD Device to provide a desired pressure differential in response to one or more measured parameters. Devices such as an adjustable bypass can be used to control the APD Device. In other embodiments, one or more flow control devices coupled to the return fluid reduce the effective pressure differential provided by the APD Device.
摘要翻译：与返回流体流体连通的主动差压装置（APD装置）在整个装置上产生压差，控制压力低于APD装置。在实施例中，控制单元控制APD装置以在中间井筒位置或套管中的井眼底部，靠近套管靴提供选定的压力差。在一种布置中，控制系统被预先设置在表面上，使得APD装置提供基本恒定的压力差。在其他布置中，控制系统调整APD装置的操作参数以响应于一个或多个测量参数提供期望的压力差。诸如可调旁路的设备可用于控制APD设备。在其他实施例中，耦合到返回流体的一个或多个流量控制装置减少由APD装置提供的有效压差。

3. 发明授权

US07096975B2 Modular design for downhole ECD-management devices and related methods 有权
标题翻译：井下ECD管理装置的模块化设计及相关方法
公开(公告)号：US07096975B2
公开(公告)日：2006-08-29
申请号：US10809648
申请日：2004-03-25
申请人： Peter Aronstam , Volker Krueger , Sven Krueger , Harald Grimmer , Roger Fincher , Larry Watkins , Peter Fontana
发明人： Peter Aronstam , Volker Krueger , Sven Krueger , Harald Grimmer , Roger Fincher , Larry Watkins , Peter Fontana
IPC分类号： E21B21/08
CPC分类号： B63B21/502 , E21B7/002 , E21B7/128 , E21B7/28 , E21B17/206 , E21B19/002 , E21B19/09 , E21B19/22 , E21B21/00 , E21B21/001 , E21B21/08 , E21B33/076 , E21B43/121 , E21B43/122 , E21B2021/006
摘要： One or more components of a wellbore drilling assembly utilize a modular construction to facilitate assembly, disassembly, repair and/or maintenance of a wellbore drilling assembly and/or to extend the overall operating capabilities of the drilling assembly. In one embodiment, a modular construction is used for an APD Device, a motor driving the modular APD Device, a comminution device, and an annular seal. Individual modules can be configure have different operating set points, operating parameters and characteristics (e.g., rotational speeds, flow rates, pressure differentials, etc.) and/or different responses to given environmental factors or conditions (e.g., pressure, temperature, wellbore fluid chemistry, etc.). In one embodiment, the high-pressure seals used in conjunction with the APD Device and/or motor is a hydrodynamic seal that provides a selected leak or flow rates. Optionally, the seal is modular to provide different degrees of leak rates and/or different functional characteristics.
摘要翻译：井眼钻井组件的一个或多个部件利用模块化结构来促进井眼钻井组件的组装，拆卸，修理和/或维护和/或延伸钻井组件的总体操作能力。在一个实施例中，模块化结构用于APD装置，驱动模块化APD装置的电动机，粉碎装置和环形密封件。单个模块可以被配置为具有不同的操作设定点，操作参数和特性（例如，转速，流速，压差等）和/或对给定的环境因素或条件的不同响应（例如，压力，温度，井筒流体化学等）。在一个实施例中，与APD装置和/或马达结合使用的高压密封件是提供选定的泄漏或流速的流体动力密封件。可选地，密封件是模块化的，以提供不同程度的泄漏率和/或不同的功能特性。

4. 发明授权

US07055627B2 Wellbore fluid circulation system and method 有权
标题翻译：井筒流体循环系统及方法
公开(公告)号：US07055627B2
公开(公告)日：2006-06-06
申请号：US10713708
申请日：2003-11-14
申请人： Peter Fontana , Roger Fincher , Larry Watkins , Peter Aronstam
发明人： Peter Fontana , Roger Fincher , Larry Watkins , Peter Aronstam
IPC分类号： E21B44/00
CPC分类号： E21B21/08 , E21B21/00
摘要： The present invention provides drilling systems for drilling wellbores. The drilling system includes an umbilical that passes through a wellhead and carries a drill bit. A drilling fluid system supplies drilling fluid into an annulus (supply line) between the umbilical and the wellbore, which discharges at the drill bit bottom and returns to the wellhead through the umbilical (return line) carrying the drill cuttings. A fluid circulation device, such as a turbine or centrifugal pump, is operated in the return line to provide the primary motive force for circulating drilling fluid through a fluid circuit formed by the supply line and return line. Optionally, a secondary fluid circulation device in fluid communication with the return line can cooperate with the fluid circulation device to circulate drilling fluid and/or a near bit fluid circulation device can be used to provide localized flow control or suction pressure to improve bit cleaning.
摘要翻译：本发明提供了用于钻井井筒的钻井系统。钻井系统包括通过井口并承载钻头的脐带。钻井液系统将钻井流体提供到脐带和井眼之间的环（供应管线）中，其在钻头底部排放，并通过承载钻屑的脐带（返回管线）返回到井口。诸如涡轮或离心泵的流体循环装置在返回管线中操作，以提供用于使钻井液体循环通过由供应管线和返回管线形成的流体回路的主要动力。可选地，与返回管线流体连通的二次流体循环装置可以与流体循环装置配合以循环钻井流体和/或可以使用近位流体循环装置来提供局部流量控制或抽吸压力以改善钻头清洗。

5. 发明申请

US20070278007A1 Reverse Circulation Pressure Control Method and System 失效
标题翻译：反循环压力控制方法与系统
公开(公告)号：US20070278007A1
公开(公告)日：2007-12-06
申请号：US11693574
申请日：2007-03-29
申请人： Sven Krueger , Volker Krueger , Jens Bruns , Roger Fincher , Larry Watkins , Peter Aronstam , Peter Fontana
发明人： Sven Krueger , Volker Krueger , Jens Bruns , Roger Fincher , Larry Watkins , Peter Aronstam , Peter Fontana
IPC分类号： E21B21/08
CPC分类号： E21B21/08 , E21B21/00 , E21B2021/006
摘要： A system for reverse circulation in a wellbore include equipment for supplying drilling fluid into the wellbore bit via at least an annulus of the wellbore and returning the drilling fluid to a surface location via at least a bore of a wellbore tubular. The system also includes devices for controlling the annulus pressure associated with this reverse circulation. In one embodiment, an active pressure differential device increases the pressure wellbore annulus to at least partially offset a circulating pressure loss. In other embodiments, the system includes devices for decreasing the pressure in the annulus of the wellbore. For offshore application, annulus pressure is decreased to accommodate the pore and fracture pressures of a subsea formation. In still other embodiments, annulus pressure is decreased to cause an underbalanced condition in the well.
摘要翻译：用于在井筒中反向循环的系统包括用于经钻孔的至少一个环形孔向钻井钻头提供钻井液的设备，并且通过井筒管的至少一个钻孔将钻探流体返回到表面位置。该系统还包括用于控制与该反向循环相关联的环空压力的装置。在一个实施例中，主动压差装置增加了井筒环的压力，至少部分地抵消了循环压力损失。在其他实施例中，该系统包括用于降低井眼的环空中的压力的装置。对于海上应用，环形压力降低以适应海底地层的孔隙和断裂压力。在其它实施例中，环形压力降低，导致井中欠平衡状态。

6. 发明申请

US20050098349A1 Control systems and methods for active controlled bottomhole pressure systems 有权
标题翻译：主动控制井底压力系统的控制系统和方法
公开(公告)号：US20050098349A1
公开(公告)日：2005-05-12
申请号：US10936858
申请日：2004-09-09
申请人： Sven Krueger , Volker Krueger , Harald Grimmer , Roger Fincher , Larry Watkins , Peter Aronstam , Peter Fontana
发明人： Sven Krueger , Volker Krueger , Harald Grimmer , Roger Fincher , Larry Watkins , Peter Aronstam , Peter Fontana
IPC分类号： B63B21/50 , E21B7/00 , E21B7/12 , E21B7/128 , E21B7/28 , E21B17/20 , E21B19/00 , E21B19/09 , E21B19/22 , E21B21/00 , E21B21/08 , E21B33/076 , E21B43/12
CPC分类号： B63B21/502 , E21B7/002 , E21B7/128 , E21B7/28 , E21B17/206 , E21B19/002 , E21B19/09 , E21B19/22 , E21B21/00 , E21B21/001 , E21B21/08 , E21B33/076 , E21B43/121 , E21B43/122 , E21B2021/006
摘要： Methods and control systems are provided for a wellbore drilling system having an active differential pressure device (APD device) in fluid communication with a returning fluid. The APD Device creates a differential pressure across the device, which reduces the pressure below or downhole of the device. In embodiments, a control unit controls the APD Device to provide a selected pressure differential at a wellbore bottom, adjacent a casing shoe, in an intermediate wellbore location, or in a casing. In one arrangement, the control system is pre-set at the surface such that the APD Device provides a substantially constant pressure differential. In other arrangements, the control system measures one or more parameters (e.g., wellbore pressure, formation parameters, BHA parameters, etc.) and adjusts an operating parameter of the APD Device to provide a desired pressure differential. Devices such as an adjustable bypass can be used to control the APD Device.
摘要翻译：为具有与返回流体流体连通的主动差压装置（APD装置）的井眼钻井系统提供方法和控制系统。 APD装置在整个装置上产生压差，从而将装置的压力降低或降低。在实施例中，控制单元控制APD装置以在中间井筒位置或套管中的井眼底部，靠近套管靴提供选定的压力差。在一种布置中，控制系统被预先设置在表面上，使得APD装置提供基本恒定的压力差。在其他布置中，控制系统测量一个或多个参数（例如，井眼压力，地层参数，BHA参数等）并且调整APD装置的操作参数以提供期望的压力差。诸如可调旁路的设备可用于控制APD设备。

7. 发明授权

US07174975B2 Control systems and methods for active controlled bottomhole pressure systems 有权
标题翻译：主动控制井底压力系统的控制系统和方法
公开(公告)号：US07174975B2
公开(公告)日：2007-02-13
申请号：US10936858
申请日：2004-09-09
申请人： Sven Krueger , Volker Krueger , Harald Grimmer , Roger Fincher , Larry Watkins , Peter Aronstam , Peter Fontana
发明人： Sven Krueger , Volker Krueger , Harald Grimmer , Roger Fincher , Larry Watkins , Peter Aronstam , Peter Fontana
IPC分类号： E21B7/00
CPC分类号： B63B21/502 , E21B7/002 , E21B7/128 , E21B7/28 , E21B17/206 , E21B19/002 , E21B19/09 , E21B19/22 , E21B21/00 , E21B21/001 , E21B21/08 , E21B33/076 , E21B43/121 , E21B43/122 , E21B2021/006
摘要： Methods and control systems are provided for a wellbore drilling system having an active differential pressure device (APD device) in fluid communication with a returning fluid. The APD Device creates a differential pressure across the device, which reduces the pressure below or downhole of the device. In embodiments, a control unit controls the APD Device to provide a selected pressure differential at a wellbore bottom, adjacent a casing shoe, in an intermediate wellbore location, or in a casing. In one arrangement, the control system is pre-set at the surface such that the APD Device provides a substantially constant pressure differential. In other arrangements, the control system measures one or more parameters (e.g., wellbore pressure, formation parameters, BHA parameters, etc.) and adjusts an operating parameter of the APD Device to provide a desired pressure differential. Devices such as an adjustable bypass can be used to control the APD Device.
摘要翻译：为具有与返回流体流体连通的主动差压装置（APD装置）的井眼钻井系统提供方法和控制系统。 APD装置在整个装置上产生压差，从而将装置的压力降低或降低。在实施例中，控制单元控制APD装置以在中间井筒位置或套管中的井眼底部，靠近套管靴提供选定的压力差。在一种布置中，控制系统被预先设置在表面上，使得APD装置提供基本恒定的压力差。在其他布置中，控制系统测量一个或多个参数（例如，井眼压力，地层参数，BHA参数等）并且调整APD装置的操作参数以提供期望的压力差。诸如可调旁路的设备可用于控制APD设备。

8. 发明授权

US07114581B2 Active controlled bottomhole pressure system & method 有权
公开(公告)号：US07114581B2
公开(公告)日：2006-10-03
申请号：US10783471
申请日：2004-02-20
申请人： Peter Aronstam , Volker Krueger , Sven Krueger , Harald Grimmer , Roger Fincher , Larry Watkins , Peter Fontana
发明人： Peter Aronstam , Volker Krueger , Sven Krueger , Harald Grimmer , Roger Fincher , Larry Watkins , Peter Fontana
IPC分类号： E21B7/00
CPC分类号： E21B21/00 , B63B21/502 , E21B7/002 , E21B7/128 , E21B7/28 , E21B17/206 , E21B19/002 , E21B19/09 , E21B19/22 , E21B21/001 , E21B21/08 , E21B33/076 , E21B43/121 , E21B43/122 , E21B2021/006
摘要： A wellbore drilling system has an umbilical that carries a drill bit in a wellbore. Drilling fluid pumped into the umbilical discharges at the drill bit bottom and returns through an annulus between the umbilical and the wellbore carrying entrained drill cuttings. An active differential pressure device (APD device), such as a jet pump, turbine or centrifugal pump, in fluid communication with the returning fluid creates a differential pressure across the device, which alters the pressure below or downhole of the device. The APD device can be driven by a positive displacement motor, a turbine, an electric motor, or a hydraulic motor. A controller controls the operation of the APD device in response to programmed instructions and/or one or more parameters of interest detected by one or more sensors. A preferred system is a closed loop system that maintains the wellbore at under-balance condition, at-balance condition or over-balance condition.

9. 发明授权

US08132630B2 Reverse circulation pressure control method and system 失效
标题翻译：反循环压力控制方法和系统
公开(公告)号：US08132630B2
公开(公告)日：2012-03-13
申请号：US11693574
申请日：2007-03-29
申请人： Sven Krueger , Volker Krueger , Jens Bruns , Roger Fincher , Larry Watkins , Peter Aronstam , Peter Fontana
发明人： Sven Krueger , Volker Krueger , Jens Bruns , Roger Fincher , Larry Watkins , Peter Aronstam , Peter Fontana
IPC分类号： E21B21/08
CPC分类号： E21B21/08 , E21B21/00 , E21B2021/006
摘要： A system for reverse circulation in a wellbore includes equipment for supplying drilling fluid into the wellbore bit via at least an annulus of the wellbore and returning the drilling fluid to a surface location via at least a bore of a wellbore tubular. The system also includes devices for controlling the annulus pressure associated with this reverse circulation. An active pressure differential device may increase the pressure wellbore annulus to at least partially offset a circulating pressure loss. Alternatively, the system may include devices for decreasing the pressure in the annulus of the wellbore.
摘要翻译：用于在井筒中反向循环的系统包括用于经钻孔的至少一个环形孔向井筒钻头提供钻井液的设备，并且通过井筒管的至少一个孔将钻井液返回到表面位置。该系统还包括用于控制与该反向循环相关联的环空压力的装置。主动压差装置可以增加井筒的压力环，至少部分地抵消循环压力损失。或者，该系统可以包括用于降低井眼的环空中的压力的装置。

10. 发明申请

US20070045006A1 Control systems and methods for real-time downhole pressure management (ECD control) 有权
标题翻译：用于实时井下压力管理（ECD控制）的控制系统和方法
公开(公告)号：US20070045006A1
公开(公告)日：2007-03-01
申请号：US11372803
申请日：2006-03-10
申请人： Sven Krueger , Volker Krueger , Harald Grimmer , Roger Fincher , Larry Watkins , Peter Aronstam , Peter Fontana
发明人： Sven Krueger , Volker Krueger , Harald Grimmer , Roger Fincher , Larry Watkins , Peter Aronstam , Peter Fontana
IPC分类号： E21B21/08
CPC分类号： E21B21/08 , E21B2021/006
摘要： Methods and control systems are provided for a wellbore drilling system having an active differential pressure device (APD device) in fluid communication with a returning fluid. The APD Device creates a differential pressure across the device, which reduces the pressure below or downhole of the device. In embodiments, a control unit controls the APD Device in real time via a data transmission system. In one arrangement, the data transmission system includes data links formed by conductors associated with the drill string. The conductors, which may include electrical wires and/or fiber optic bundles, couple the control unit to the APD Device and other downhole tools such as sensors. In other arrangements, the data link can include data transmission stations that use acoustic, EM, and/or RF signals to transfer data. In still other embodiments, a mud pulse telemetry system can be used in transfer data and command signals.
摘要翻译：为具有与返回流体流体连通的主动差压装置（APD装置）的井眼钻井系统提供方法和控制系统。 APD装置在整个装置上产生压差，从而将装置的压力降低或降低。在实施例中，控制单元通过数据传输系统实时地控制APD设备。在一种布置中，数据传输系统包括由与钻柱相关联的导体形成的数据链。可以包括电线和/或光纤束的导体将控制单元耦合到APD装置和诸如传感器的其它井下工具。在其他布置中，数据链路可以包括使用声学，EM和/或RF信号来传输数据的数据传输站。在其它实施例中，泥浆脉冲遥测系统可用于传送数据和命令信号。

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