Flow control apparatus and methods
    1.
    发明授权
    Flow control apparatus and methods 失效
    流量控制装置及方法

    公开(公告)号:US6112817A

    公开(公告)日:2000-09-05

    申请号:US73328

    申请日:1998-05-06

    摘要: The present invention provides a method for obtaining equalized production from deviated wellbores. A plurality of spaced apart flow control device are deployed along the length of the wellbore. The fluid from various zones are drawn in a manner that depletes the reservoir uniformly along the entire length of the wellbore. Each flow control device is initially set at a rate determined from initial reservoir simulations or models. The depletion rate, water, oil and gas content, pressure, temperature and other desired parameters are determined over a time period. This data is utilized to update the initial reservoir model, which in turn is utilized to adjust the flow rate from one or more zones so as to equalize the flow rate from the reservoir. The present invention also provides a flow control device which includes an outer shroud that reduces the effect of fluid impact on the flow control device and one or more tortuous paths which carry the formation fluid into the production tubing. A control unit controls the flow output from the flow control device. The control unit may communicate with surface equipment or act autonomously to take actions downhole based on programmed instructions provided to the control unit.

    摘要翻译: 本发明提供了一种从偏斜井筒获得均匀生产的方法。 多个间隔开的流量控制装置沿着井筒的长度展开。 来自各个区域的流体以沿井筒的整个长度均匀地耗尽储层的方式被拉伸。 每个流量控制装置最初设定在从初始储层模拟或模型确定的速率。 在一段时间内确定耗尽率,水,油和气体含量,压力,温度和其他所需参数。 该数据用于更新初始储层模型,其又用于调节来自一个或多个区域的流速,以便使来自储层的流量相等。 本发明还提供了一种流量控制装置,其包括外罩,其减少流体冲击流量控制装置的影响,以及将地层流体运送到生产管道中的一个或多个曲折路径。 控制单元控制从流量控制装置输出的流量。 控制单元可以与地面设备进行通信,或者根据提供给控制单元的编程指令,自主地采取行动以进行井下作用。

    Method of packing extended reach horizontal wells
    2.
    发明授权
    Method of packing extended reach horizontal wells 有权
    包装延伸水平井的方法

    公开(公告)号:US06581688B2

    公开(公告)日:2003-06-24

    申请号:US09818406

    申请日:2001-03-27

    IPC分类号: E21B4304

    CPC分类号: E21B47/00 E21B43/04

    摘要: The present invention provides a method for efficiently packing proppant in an extended reach, horizontal, open hole annulus. For a given set of fixed parameters, such as the wellbore size, screen size and formation fracture pressure, the method provides a combination of critical parameter values, including the proppant density, the mixture ratio of proppant and liquid and the pump rate which will yield an efficient and effective placement of the proppant in the annulus.

    摘要翻译: 本发明提供了一种用于在延伸到达的水平孔洞环中有效地填充支撑剂的方法。 对于给定的一组固定参数,如井筒尺寸,筛网尺寸和地层断裂压力,该方法提供了关键参数值的组合,包括支撑剂密度,支撑剂和液体的混合比率以及将产生的泵送速率 支撑剂在环空中的有效和有效的放置。

    Downhole screen with tubular bypass
    5.
    发明授权
    Downhole screen with tubular bypass 有权
    带管状旁路的井下筛网

    公开(公告)号:US06409219B1

    公开(公告)日:2002-06-25

    申请号:US09439797

    申请日:1999-11-12

    IPC分类号: F16L3900

    摘要: A system for preferable use in gravel packing is disclosed which includes a plurality of transport tubes which are mounted outside of gravel pack screens. The multiplicity of shunt tubes cover a particular zone so that the tubes have a varying length to deposit gravel at different portions of the zone. The tops of the tubes are preferably sealed until ready for use and activated by applied pressure. In the preferred embodiment, rupture discs are found at the tops of each of the tubes, set for different pressures so as to open up the transport tubes to the lower most portion of a particular zone and later in sequence to the higher-most portion. The transport tubes are affixed to each section of pipe and are made up when two sections of pipe are made up to alignment marks. When the marks are aligned, the transport tube segments from each pipe section are in an aligned and sealed relation while the tool joint is properly torqued.

    摘要翻译: 公开了一种优选用于砾石包装的系统,其包括安装在砾石包装屏幕外部的多个输送管。 分流管的多重性覆盖特定区域,使得管具有变化的长度以在区域的不同部分沉积砾石。 管的顶部优选被密封直到准备使用并通过施加的压力激活。 在优选实施例中,在每个管的顶部处发现破裂盘,其设定为不同的压力,以便将输送管打开到特定区域的最下部,并且稍后依次到达最高部分。 运输管固定在管道的每个部分,并且当两个管段被制成对准标记时构成。 当标记对齐时,来自每个管段的输送管段在工具接头被适当扭转时处于对准且密封的关系。

    Screen Flow Equalization System
    6.
    发明申请
    Screen Flow Equalization System 审中-公开
    屏幕流动均衡系统

    公开(公告)号:US20100212895A1

    公开(公告)日:2010-08-26

    申请号:US12391067

    申请日:2009-02-23

    CPC分类号: E21B43/12

    摘要: An assembly of inflow control devices on a string along with isolation devices can be delivered into an existing or newly delivered screen assembly that requires inflow control for balanced flow from the formation. In newly delivered screen assemblies, any gravel packing that needs to be done can be accomplished without the presence of the inflow devices for faster circulation and improved gravel deposition. External annular barriers can also be delivered with an original screen assembly in a new well installation. The inflow devices and barriers can be of a variety of designs and the internal string can be removable if the barriers are retrievable to facilitate further drilling or completion below the screen assembly.

    摘要翻译: 串联的流入控制装置与隔离装置的组合可以被输送到现有的或新交付的屏幕组件中,该组件需要来自地层的平衡流的流入控制。 在新提供的筛网组件中,可以实现任何需要完成的砾石填充,而不需要存在用于更快循环和改进的砂砾沉积的流入装置。 外部环形屏障也可以在新的井装置中与原始屏幕组件一起交付。 流入装置和障碍物可以是各种设计,并且如果阻挡件可回收以促进屏幕组件下方的进一步钻孔或完成,则内部柱可以是可移除的。

    Flow restrictor device
    7.
    发明授权
    Flow restrictor device 有权
    流量限制器

    公开(公告)号:US08925634B2

    公开(公告)日:2015-01-06

    申请号:US13390788

    申请日:2010-07-08

    CPC分类号: E21B34/06 E21B34/08 E21B41/00

    摘要: A flow restrictor device for production tubing comprising an obstructing member. The flow restrictor is arranged for movement between a first position where the obstructing member is located so as to form a seal with an edge of an aperture formed in a wall of said production tubing and is arranged to prevent fluid flow through said aperture, and a second position where the obstructing member is located so that the aperture is unobstructed. The flow restrictor further comprises a retaining arrangement for restricting possible locations of said obstructing member to said first position, second position and positions therebetween. The aperture allows fluid communication between the exterior and interior of the production tubing.

    摘要翻译: 一种用于生产管道的限流装置,包括阻塞构件。 限流器布置成在阻塞构件所在的第一位置之间移动,以便与形成在所述生产管道的壁中的孔的边缘形成密封,并且被布置成防止流体流过所述孔,并且 阻挡构件所在的第二位置,使得孔不受阻碍。 限流器还包括保持装置,用于将所述阻挡构件的可能位置限制到所述第一位置,第二位置和它们之间的位置。 孔径允许生产管道的外部和内部之间的流体连通。

    Application of aluminum chlorohydrate in viscosifying brine for carrying proppants in gravel packing
    9.
    发明授权
    Application of aluminum chlorohydrate in viscosifying brine for carrying proppants in gravel packing 有权
    在粘稠盐水中使用水合氯铝酸盐,在砾石包装中运载支撑剂

    公开(公告)号:US06211120B1

    公开(公告)日:2001-04-03

    申请号:US09247168

    申请日:1999-02-09

    IPC分类号: C09K702

    摘要: New compositions have been discovered which are useful as slurry concentrates to carry solid particles along in a fluid. A non-limiting example would be to carry proppants in a concentrate to a completion fluid being pumped downhole in a hydrocarbon recovery operation. The composition employs both a trivalent salt, such as aluminum chlorohydrate, as a viscosifying agent, and a surfactant. Surprisingly, it has been discovered that a synergistic effect is present between the aluminum chlorohydrate and the surfactant in that less of each component is required when both are used together to suspend the same amount of solids, than if one or the other is used separately. The viscoelasticity of the concentrate may be easily broken by dilution; other mechanisms are also anticipated.

    摘要翻译: 已经发现了新的组合物,其可用作浆料浓缩物沿着流体携带固体颗粒。 非限制性的实例是在烃回收操作中将浓缩物中的支撑剂运送到在井下泵送的完井流体。 组合物使用三价盐,例如水合氯化铝,作为增粘剂和表面活性剂。 令人惊讶的是,已经发现,在水合氯铝酸盐和表面活性剂之间存在协同效应,因为当两者都一起使用时,需要较少的每种组分,因为如果分开使用一种或另一种,则需要同时悬浮相同量的固体。 浓缩物的粘弹性可能会因稀释而容易破裂; 还预期其他机制。

    FLOW RESTRICTOR DEVICE
    10.
    发明申请
    FLOW RESTRICTOR DEVICE 有权
    流量限制器件

    公开(公告)号:US20120227979A1

    公开(公告)日:2012-09-13

    申请号:US13390788

    申请日:2010-07-08

    IPC分类号: E21B43/00 E21B34/00

    CPC分类号: E21B34/06 E21B34/08 E21B41/00

    摘要: A flow restrictor device (10) for production tubing comprises: an obstructing member (18) arranged for movement between a first position where said obstructing member is located so as to form a seal with an edge of an aperture (14) formed in a wall of said production tubing and is arranged prevent fluid flow through said aperture, and a second position where said obstructing member is located so that the aperture is unobstructed; and a retaining arrangement (16) for restricting possible locations of said obstructing member to said first position, second position and positions therebetween.

    摘要翻译: 用于生产管道的限流装置(10)包括:阻塞构件(18),布置成在所述阻挡构件所在的第一位置之间移动,以便与形成在壁中的孔(14)的边缘形成密封 并且被布置成防止流体流过所述孔,并且阻止所述阻挡构件定位成使得所述孔不被阻挡的第二位置; 以及用于限制所述阻挡构件到所述第一位置,第二位置和它们之间的位置的可能位置的保持装置(16)。