Gas injection while drilling
    1.
    发明授权
    Gas injection while drilling 有权
    钻井时注气

    公开(公告)号:US09493986B2

    公开(公告)日:2016-11-15

    申请号:US14117518

    申请日:2012-05-25

    摘要: Injection of gas into a managed pressure drilling system to provide for operation of the drilling system in a downhole pressure window defined by the pore pressure of a formation being drilled and a fracture pressure of the formation. Gas injection being controlled so as to produce the desired downhole pressure without causing large oscillations in borehole pressure.

    摘要翻译: 将气体注入管理的压力钻井系统中,以提供钻井系统在井下压力窗口中的操作,该井下压力窗口由被钻井的地层的孔隙压力和地层的断裂压力所限定。 控制气体注入以产生所需的井下压力,而不会引起钻孔压力的大的振荡。

    System and method for directional drilling a borehole with a rotary drilling system
    2.
    发明授权
    System and method for directional drilling a borehole with a rotary drilling system 有权
    用旋转钻井系统定向钻孔的系统和方法

    公开(公告)号:US08534380B2

    公开(公告)日:2013-09-17

    申请号:US12116408

    申请日:2008-05-07

    IPC分类号: E21B44/00 E21B7/04 E21B29/00

    CPC分类号: E21B7/06

    摘要: This disclosure relates in general to a method and a system for directionally drilling a borehole with a rotary drilling system. More specifically, but not by way of limitation, methods and system provide for controlling motion of the rotary drilling system in the borehole when a side force is applied to the drilling system to bias or focus the motion so that the drilling system directionally drills the borehole through an earth formation. In certain aspects, side cutting of a sidewall of the borehole by a drill bit under an applied side force is controlled by a geostationary element to provide for directional side cutting and, as a result, directional drilling of the borehole through the earth formation. In other aspects, a non-concentrically coupled gauge pad assembly may rotate with the drilling system and bias or focus the applied side force.

    摘要翻译: 本公开一般涉及一种用旋转钻井系统定向钻孔的方法和系统。 更具体地但非限制性的方法和系统提供了当侧向力施加到钻井系统以偏置或聚焦运动时控制旋转钻井系统在钻孔中的运动,使得钻井系统定向钻钻孔 通过地球形成。 在某些方面,在施加的侧力下通过钻头对钻孔的侧壁进行侧面切割由对地静止元件控制,以提供定向侧切割,并且因此通过地层形成定向钻孔。 在其他方面,非同心耦合的量规垫组件可以与钻孔系统一起旋转并且偏压或聚焦所施加的侧向力。

    Systems and methods for distributed interferometric acoustic monitoring
    3.
    发明授权
    Systems and methods for distributed interferometric acoustic monitoring 有权
    分布式干涉声学监测系统和方法

    公开(公告)号:US08225867B2

    公开(公告)日:2012-07-24

    申请号:US13085921

    申请日:2011-04-13

    IPC分类号: E21B47/00

    摘要: Acoustic monitoring is carried out using a fiber optic cable. Coherent Rayleigh noise generated by the transmission of a coherent beam of radiation through the fiber optic cable is detected, a phase of the coherent Rayleigh noise is measured and the measured phase is processed to identify an acoustic occurrence along the fiber optic cable. In certain aspects an optical fiber serves as a distributed interferometer that may be used to monitor a conduit, wellbore or reservoir. The distributed interferometric monitoring provides for accurate detection of acoustic occurrences along the fiber optic cable and these acoustic occurrences may include fluid flow in a pipeline or wellbore, processes taking place in a wellbore or pipeline, fracturing, gravel packing, or production logging.

    摘要翻译: 使用光纤电缆进行声学监测。 检测到通过光纤电缆传输相干的辐射束产生的相干瑞利噪声,测量相干瑞利噪声的相位,并且处理测量的相位以识别沿着光纤电缆的声音发生。 在某些方面,光纤用作分布式干涉仪,其可用于监测导管,井眼或储层。 分布式干涉测量提供对沿着光纤电缆的声学发生的精确检测,并且这些声学发生可以包括在管道或井眼中的流体流动,在井眼或管道中发生的过程,压裂,砾石填充或生产测井。

    DRILLING APPARATUS
    4.
    发明申请
    DRILLING APPARATUS 有权
    钻孔设备

    公开(公告)号:US20120055712A1

    公开(公告)日:2012-03-08

    申请号:US13140200

    申请日:2008-12-19

    IPC分类号: E21B7/00 E21B10/26

    摘要: An apparatus for drilling a wellbore (10) is disclosed, the apparatus comprising a lowermost pilot drill bit (16) having a diameter less than that of the diameter of wellbore (12) drilled by the apparatus, above which is a reamer, having an adjustable drill diameter from a first diameter less than that of the pilot drill to a second diameter greater than that of the pilot drill, above which is a body portion (24) having a lower diameter less than that of the pilot drill and an upper diameter greater than that of the pilot' drill but less than the second diameter of the reamer.

    摘要翻译: 公开了一种用于钻井井(10)的装置,该装置包括直径小于由装置钻出的井眼(12)直径的直径的最下面的先导钻头(16),其上方是铰刀,具有 可调节钻头直径小于先导钻头的第一直径,直径大于先导钻头的第二直径,其中,主体部分(24)的直径小于先导钻头的直径,并且上部直径 大于飞行员的钻头,但小于铰刀的第二直径。

    Stochastic bit noise control
    5.
    发明授权
    Stochastic bit noise control 有权
    随机位噪声控制

    公开(公告)号:US08066085B2

    公开(公告)日:2011-11-29

    申请号:US12116380

    申请日:2008-05-07

    CPC分类号: E21B7/06 E21B44/005

    摘要: A drill bit direction system and method is disclosed that modifies or biases the stochastic movement of the drill bit and/or stochastic interactions between the drill bit and an inner-wall of a borehole being drilled by a drilling system to change the direction of drilling of the drilling system. The direction of the drill bit is monitored to determine if the direction happens to align in some way with a preferred direction. If the direction isn't close enough to a preferred direction, a biasing mechanism modifies the stochastic movement in an attempt to modify the direction closer to the preferred direction. Any of a number of biasing mechanisms can be used. Some embodiments can resort to conventional steering mechanisms to supplement the biasing mechanism.

    摘要翻译: 公开了一种钻头方向系统和方法,其修改或偏置钻头的随机运动和/或钻头与正在钻探的钻孔的内壁之间的随机相互作用以改变钻孔方向 钻井系统。 监测钻头的方向以确定方向是否以某种方式与优选方向对齐。 如果方向不够接近优选的方向,则偏置机构修改随机运动以试图改变更靠近优选方向的方向。 可以使用多个偏置机构中的任何一种。 一些实施例可以采用常规的转向机构来补充偏置机构。

    Perforation logging tool and method
    7.
    发明授权
    Perforation logging tool and method 有权
    穿孔测井工具及方法

    公开(公告)号:US07784339B2

    公开(公告)日:2010-08-31

    申请号:US11667230

    申请日:2005-11-16

    IPC分类号: E21B49/00

    CPC分类号: E21B47/10 E21B43/11

    摘要: The present invention provides an apparatus an methods for detecting the behavior of perforations in a wellbore casing, the apparatus including a sensor array movable within the internal diameter of the casing, the sensor array having one or more sensors located proximate the internal surface of the casing with the sensors being located or oriented such that properties of flow from a proximate perforation can be distinguished from properties of a main flow through the wellbore.

    摘要翻译: 本发明提供了一种用于检测井筒壳体中的穿孔行为的方法,该装置包括可在壳体的内径内移动的传感器阵列,该传感器阵列具有位于壳体内表面附近的一个或多个传感器 其中传感器被定位或定向,使得来自邻近穿孔的流动性能可以与通过井筒的主流的性质区分开。

    COMPLIANTLY COUPLED CUTTING SYSTEM
    8.
    发明申请
    COMPLIANTLY COUPLED CUTTING SYSTEM 有权
    合适的切割系统

    公开(公告)号:US20100038139A1

    公开(公告)日:2010-02-18

    申请号:US12191172

    申请日:2008-08-13

    IPC分类号: E21B7/00 E21B17/10

    摘要: A drill bit system for a drilling assembly is disclosed. The drill bit system may include a chassis, a head, and a first plurality of gauge pads. The head may include a first plurality of cutters coupled with an end of the head, and the head may be movably coupled with chassis. The first plurality of gauge pads may include a second plurality of cutters, and the first plurality of gauge pads may be fixedly coupled with the chassis.

    摘要翻译: 公开了一种用于钻井组件的钻头系统。 钻头系统可以包括底架,头部和第一多个量规垫。 头可以包括与头部的端部耦合的第一多个切割器,并且头部可以与底盘可移动地联接。 第一多个测量垫可以包括第二多个切割器,并且第一多个测量垫可以与底盘固定地联接。

    STOCHASTIC BIT NOISE CONTROL
    10.
    发明申请
    STOCHASTIC BIT NOISE CONTROL 有权
    STOCHASTIC BIT NOISE控制

    公开(公告)号:US20090044978A1

    公开(公告)日:2009-02-19

    申请号:US12116380

    申请日:2008-05-07

    IPC分类号: E21B44/00

    CPC分类号: E21B7/06 E21B44/005

    摘要: A drill bit direction system and method is disclosed that modifies or biases the stochastic movement of the drill bit and/or stochastic interactions between the drill bit and an inner-wall of a borehole being drilled by a drilling system to change the direction of drilling of the drilling system. The direction of the drill bit is monitored to determine if the direction happens to align in some way with a preferred direction. If the direction isn't close enough to a preferred direction, a biasing mechanism modifies the stochastic movement in an attempt to modify the direction closer to the preferred direction. Any of a number of biasing mechanisms can be used. Some embodiments can resort to conventional steering mechanisms to supplement the biasing mechanism.

    摘要翻译: 公开了一种钻头方向系统和方法,其修改或偏置钻头的随机运动和/或钻头与正在钻探的钻孔的内壁之间的随机相互作用以改变钻孔方向 钻井系统。 监测钻头的方向以确定方向是否以某种方式与优选方向对齐。 如果方向不够接近优选的方向,则偏置机构修改随机运动以试图改变更靠近优选方向的方向。 可以使用多个偏置机构中的任何一种。 一些实施例可以采用常规的转向机构来补充偏置机构。