Subsea wellbore drilling system for reducing bottom hole pressure

    公开(公告)号:US06648081B2

    公开(公告)日:2003-11-18

    申请号:US10094208

    申请日:2002-03-08

    IPC分类号: E21B700

    摘要: The present invention provides drilling systems for drilling subsea wellbores. The drilling system includes a tubing that passes through a sea bottom wellhead and carries a drill bit. A drilling fluid system continuously supplies drilling fluid into the tubing, which discharges at the drill bit bottom and returns to the wellhead through an annulus between the tubing and the wellbore carrying the drill cuttings. A fluid return line extending from the wellhead equipment to the drilling vessel transports the returning fluid to the surface. In a riserless arrangement, the return fluid line is separate and spaced apart from the tubing. In a system using a riser, the return fluid line may be the riser or a separate line carried by the riser. The tubing may be coiled tubing with a drilling motor in the bottom hole assembly driving the drill bit. A suction pump coupled to the annulus is used to control the bottom hole pressure during drilling operations, making it possible to use heavier drilling muds and drill to greater depths than would be possible without the suction pump. An optional delivery system continuously injects a flowable material, whose fluid density is less than the density of the drilling fluid, into the returning fluid at one or more suitable locations the rate of such lighter material can be controlled to provide supplementary regulation of the pressure. Various pressure, temperature, flow rate and kick sensors included in the drilling system provide signals to a controller that controls the suction pump, the surface mud pump, a number of flow control devices, and the optional delivery system.

    Subsea wellbore drilling system for reducing bottom hole pressure
    2.
    发明授权
    Subsea wellbore drilling system for reducing bottom hole pressure 有权
    用于减少井底压力的海底井筒钻井系统

    公开(公告)号:US06854532B2

    公开(公告)日:2005-02-15

    申请号:US10716106

    申请日:2003-11-17

    摘要: The present invention provides drilling systems for drilling subsea wellbores. The drilling system includes a tubing that passes through a sea bottom wellhead and carries a drill bit. A drilling fluid system continuously supplies drilling fluid into the tubing, which discharges at the drill bit bottom and returns to the wellhead through an annulus between the tubing and the wellbore carrying the drill cuttings. A fluid return line extending from the wellhead equipment to the drilling vessel transports the returning fluid to the surface. In a riserless arrangement, the return fluid line is separate and spaced apart from the tubing. In a system using a riser, the return fluid line may be the riser or a separate line carried by the riser. The tubing may be coiled tubing with a drilling motor in the bottom hole assembly driving the drill bit. A suction pump coupled to the annulus is used to control the bottom hole pressure during drilling operations, making it possible to use heavier drilling muds and drill to greater depths than would be possible without the suction pump. An optional delivery system continuously injects a flowable material, whose fluid density is less than the density of the drilling fluid, into the returning fluid at one or more suitable locations the rate of such lighter material can be controlled to provide supplementary regulation of the pressure. Various pressure, temperature, flow rate and kick sensors included in the drilling system provide signals to a controller that controls the suction pump, the surface mud pump, a number of flow control devices, and the optional delivery system.

    摘要翻译: 本发明提供了用于钻井海底井筒的钻井系统。 钻井系统包括通过海底井口并承载钻头的管道。 钻井液系统将钻井液连续地供应到管道中,该钻井液在钻头底部排放,并通过管道和承载钻屑的井筒之间的环形空间返回到井口。 从井口设备延伸到钻井船的流体回流管将返回的流体输送到表面。 回流流体管线以不连续的方式分开并与管道间隔开。 在使用提升管的系统中,返回流体管线可以是提升管或由提升管携带的单独管线。 管道可以是在驱动钻头的底孔组件中的钻井马达的连续油管。 耦合到环空的抽吸泵用于控制钻井操作期间的井底压力,使得可以使用较重的钻井泥浆和钻头比没有抽吸泵更大的深度。 可选的输送系统将流体密度小于钻井液密度的可流动材料在一个或多个合适的位置连续地喷射到返回流体中,可以控制这种较轻材料的速率以提供对压力的补充调节。 包括在钻井系统中的各种压力,温度,流量和踢脚传感器向控制抽吸泵,表面泥浆泵,多个流量控制装置和可选输送系统的控制器提供信号。

    Subsea wellbore drilling system for reducing bottom hole pressure

    公开(公告)号:US06415877B1

    公开(公告)日:2002-07-09

    申请号:US09353275

    申请日:1999-07-14

    IPC分类号: E21B712

    摘要: The present invention provides drilling systems for drilling subsea wellbores. The drilling system includes a tubing that passes through a sea bottom wellhead and carries a drill bit. A drilling fluid system continuously supplies drilling fluid into the tubing, which discharges at the drill bit bottom and returns to the wellhead through an annulus between the tubing and the wellbore carrying the drill cuttings. A fluid return line extending from the wellhead equipment to the drilling vessel transports the returning fluid to the surface. In a riserless arrangement, the return fluid line is separate and spaced apart from the tubing. In a system using a riser, the return fluid line may be the riser or a separate line carried by the riser. The tubing may be coiled tubing with a drilling motor in the bottom hole assembly driving the drill bit. A suction pump coupled to the annulus is used to control the bottom hole pressure during drilling operations, making it possible to use heavier drilling muds and drill to greater depths than would be possible without the suction pump. An optional delivery system continuously injects a flowable material, whose fluid density is less than the density of the drilling fluid, into the returning fluid at one or more suitable locations the rate of such lighter material can be controlled to provide supplementary regulation of the pressure. Various pressure, temperature, flow rate and kick sensors included in the drilling system provide signals to a controller that controls the suction pump, the surface mud pump, a number of flow control devices, and the optional delivery system.

    SYSTEM AND METHOD FOR CHARACTERIZATION OF DOWNHOLE MEASUREMENT DATA FOR BOREHOLE STABILITY PREDICTION
    4.
    发明申请
    SYSTEM AND METHOD FOR CHARACTERIZATION OF DOWNHOLE MEASUREMENT DATA FOR BOREHOLE STABILITY PREDICTION 有权
    用于表征井间稳定性预测的井下测量数据的系统和方法

    公开(公告)号:US20140214325A1

    公开(公告)日:2014-07-31

    申请号:US13755973

    申请日:2013-01-31

    IPC分类号: E21B47/06

    CPC分类号: E21B47/06

    摘要: A method for estimating a time at which a pressure window relevant observation occurred relating to an event that occurred in an open borehole penetrating an earth formation includes: receiving with a processor a pressure window relevant observation that provides input to adjusting a pressure window for drilling fluid for drilling the borehole; and estimating with the processor a time window in which a physical parameter, a chemical parameter, or a process that caused the pressure window relevant observation to occur, the time window having a start time and an end time.

    摘要翻译: 一种用于估计与在穿透地层的开放井眼中发生的事件相关的压力窗口相关观测的时间的方法包括:用处理器接收压力窗口相关观测值,该压力窗口相关观测值为调节钻井液体的压力窗口提供输入 用于钻孔; 并且利用处理器估计出具有发生压力窗口相关观察的物理参数,化学参数或处理的时间窗口,该时间窗口具有开始时间和结束时间。

    System and method to locate, monitor and quantify friction between a drillstring and a wellbore
    8.
    发明授权
    System and method to locate, monitor and quantify friction between a drillstring and a wellbore 有权
    定位,监测和量化钻柱与井筒之间摩擦的系统和方法

    公开(公告)号:US08600679B2

    公开(公告)日:2013-12-03

    申请号:US12389441

    申请日:2009-02-20

    IPC分类号: G01V3/38

    摘要: Disclosed herein is a method of locating and quantifying friction between a drillstring and a wellbore. The method includes, positioning a plurality of sensors within a wellbore, communicatively coupling the plurality of sensors, monitoring signals from the plurality of sensors, logging the sensed signals versus time versus depth of each of the plurality of sensors, locating at least one friction zone along the drillstring within the wellbore based on the logging and quantifying friction in the at least one friction zone based on the logging.

    摘要翻译: 本文公开了一种定位和量化钻柱和井筒之间的摩擦力的方法。 该方法包括:在井孔内定位多个传感器,通信地耦合多个传感器,监测来自多个传感器的信号,记录感测信号与多个传感器中的每一个的时间相对于深度,定位至少一个摩擦区 基于测井,基于测井和测量至少一个摩擦区域中的摩擦,沿井筒内的钻柱进行测井。

    In-situ rheology behavior characterization using data analytics techniques

    公开(公告)号:US11352883B2

    公开(公告)日:2022-06-07

    申请号:US15600100

    申请日:2017-05-19

    IPC分类号: E21B49/08 E21B47/26

    摘要: Examples of techniques for performing a wellbore construction operation in a wellbore are disclosed. In one example implementation according to aspects of the present disclosure, a computer-implemented method includes: performing a rheology test on a test fluid, the test fluid being representative of a fluid pumped through the wellbore, to generate test fluid data; performing, by the processing device, a data analysis on the test fluid data to generate at least one parameterized correlation; measuring a first property of the fluid to generate measured data; calculating, by the processing device, a second property of the fluid in the wellbore by using the parameterized correlations and the measured data to generate calculated data; and changing a parameter of the wellbore construction operation based at least in part on the calculated data.

    Automation of energy industry processes using stored standard best practices procedures

    公开(公告)号:US10287855B2

    公开(公告)日:2019-05-14

    申请号:US14925590

    申请日:2015-10-28

    摘要: An embodiment of a method of performing an energy industry operation includes storing one or more sets of instructions at a storage location accessible by a controller configured to control aspects of an energy industry operation, the one or more sets of instructions retrieved from a library of sets of instructions, each set of instructions prescribing a standard procedure for performing a process forming part of the energy industry operation, the standard procedure based on best operating practices developed from previously performed operations independent of the process to be performed. The method also includes deploying a carrier in a borehole in an earth formation and performing an energy industry operation, monitoring the operation and, in response to detecting a condition associated with the process, automatically retrieving the set of instructions corresponding to the process, and automatically performing the process by the controller according to the retrieved set of instructions.