CN101539006B - Method and equipment for completed well - Google Patents

Method and equipment for completed well Download PDF

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Publication number
CN101539006B
CN101539006B CN200810085467.5A CN200810085467A CN101539006B CN 101539006 B CN101539006 B CN 101539006B CN 200810085467 A CN200810085467 A CN 200810085467A CN 101539006 B CN101539006 B CN 101539006B
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filter
valve
fluid
tube
base pipe
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CN200810085467.5A
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CN101539006A (en
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加里·L·瑞特斯克
悉尼·加斯克
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普拉德研究及开发股份有限公司
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Abstract

本发明公开一种用于完成井的方法和设备,其中用于完成井的方法包括:在井中运行基管上的滤管组件,每个滤管组件与井的不同砂砾填充层关联;在井的砂砾填充期间,选择性地把滤管组件构造成保持压力以便形成流体密封,而不在基管中运行工具。 The present invention discloses a method and apparatus for a well completion, wherein a method for completing a well comprising: a filter tube assembly on the base pipe associated with the well operation, each filter tube assembly and gravel packing the well layers different; in the well during gravel packing, the filter selectively configured to hold pressure in the tube assembly to form a fluid-tight seal, without running the tool in the base pipe.

Description

用于完成井的方法和设备 A method and apparatus for well completion

技术领域 FIELD

[0001 ] 本发明涉及一种用于完成井的方法和设备。 [0001] The present invention relates to a method and apparatus for completing wells.

背景技术 Background technique

[0002] 当从地层产生井液(well fluid)时,井液典型地包含粒子或“沙子”。 [0002] when produced well fluids (well fluid) from the formation, the well fluid typically comprises particles or "sand." 必需控制从井中产生沙子,以便延长井的寿命。 Necessary to control the generation of sand from the well, in order to extend the life of the well. 控制产生沙子的一个方法是在井中安装滤管(screen)并在滤管的周围形成衬底以便过滤产生的井液中的沙子。 Generating a control method is to install the sand filter tube (Screen) is formed in the well and the substrate in order to produce well fluid in the filter sand around the filter tubes. 一种典型的沙滤管由圆柱形滤管形成,该沙滤管通常与产生井液的井的钻孔同心。 A typical filter sand filter tube is formed by a cylindrical tube, the sand filter tubes are typically produced well fluids with the well bore concentrically. 砂砾充填在包围沙滤管的环形区中。 Gravel pack sand filter tube surrounding annular region. 产生的井液流通过砂砾,进入沙滤管并经连接到沙滤管的油管与井上连通。 Well stream generated by the gravel, sand filter into the tube and the uphole via tubing connected to a sand filter tubes communicate.

[0003] 包围滤管的砂砾典型地经砂砾充填操作被引导进井中。 [0003] gravel surrounding the filter tubes are typically guided by the gravel pack operation proceeds well. 在传统的砂砾充填操作中,砂砾经泥浆与井下连通,泥浆是流体和砂砾的混合物。 In a conventional gravel pack operation, the gravel slurry through the downhole communication, fluid and slurry is a mixture of gravel. 井中的砂砾填充系统引导沙滤管周围的泥浆,从而当泥浆中的流体消失时砂砾仍保留在滤管周围。 A well gravel packing slurry around the system boot sand filter tube, so that when the fluid disappears gravel slurry remains around the filter tube.

[0004] 不平常的是,井中充填砂砾的层大于一个。 [0004] unusual is gravel packed wells in more than one layer. 完成具有多个砂砾填充层(multiplegravel pack zones)的井的一个方法是首先运行井底隔离器,然后运行具有工作管柱(work string)和井下服务工具的一个隔离器和滤管组件。 The method to complete a well having a plurality of gravel packing layers (multiplegravel pack zones) are the first run downhole separator, and then operating a work string (work string), and a separator and a filter tube assembly downhole service tool. 设定单个隔离器,然后给单个层填充砂砾。 Setting a single separator, then gravel filled to a single layer. 随后,服务工具撤回到地面。 Subsequently, the service tool to withdraw to the ground. 重复该顺序直至完成每个层的砂砾填充。 The sequence is repeated until the completion of gravel packing of each layer.

[0005] 另一种完成具有多个砂砾填充层的井的技术是把多个隔离器和滤管全部放到具有井下服务工具的井中。 [0005] Another technique having a plurality of well layers of gravel packing a completion of the separator and a plurality of filter tubes into all wells having a downhole tool service. 首先完成较下的层,然后每次填充一个上方层。 More under the first layer is completed, and each time over a filling layer. 逆循环典型地用于在服务工具向上移动到下一个层之前去除服务工具上的沙子。 Typically, the reverse cycle for removing sand on the service in the service tool before moving the tool up to the next layer. 为了实现逆循环,工具在滤管内部运行以便封堵正在填充的层上方的滤管。 In order to achieve reverse cycle, in order to run the tool above the sealing layer of filter tubes being filled inside the filter tube. 然而,该工具典型地相当复杂,工具必需执行泥浆的密封和输送,以及返回液体。 However, the tool is typically quite complex, mud tools necessary to perform the sealing and transport, as well as the returning liquid.

[0006] 为了防止产生沙子和最终的完全失效,实现有效的和完全的砂砾放置是重要的。 [0006] In order to prevent the sand and the final complete failure to achieve efficient and complete gravel placement is important. 如果没有完成填充,一个或多个滤管会失效。 If the padding is not completed, the one or more filter tubes fail. 一旦滤管部分已经失效,产生的砂砾或沙子开始流进生产油管。 Once the filter tube portion has failed, gravel or sand produced begins to flow into the production tubing. 沙子可导致腐蚀,损害地面设备的流体控制装置,并且通常会缩短井的寿命O Sand can lead to corrosion, damage to equipment ground fluid control device, and typically will shorten the life of the well O

[0007] 因此,需要更好的方法来对多层井进行砂砾填充,同时当滤管失效时还需要考虑腐蚀作用。 [0007] Thus, a better way to require gravel packing wells of a multi-layer, while when the filter tube failure requires consideration of corrosion.

发明内容 SUMMARY

[0008] 在本发明的实施例中,用于井的技术包括:在井中运行基管上的滤管组件,每个滤管组件与井的不同砂砾填充层关联;在井的砂砾填充期间,选择性地把滤管组件构造成保持压力以便形成流体密封,而不在基管中运行工具。 [0008] In an embodiment of the present invention, techniques for wells comprising: a filter tube assembly on the base pipe associated with the well operation, each filter tube assembly and gravel packing the well layers different; in the well during the gravel packing, the filter selectively configured to hold pressure in the tube assembly to form a fluid-tight seal, without running the tool in the base pipe.

[0009] 在本发明的另一个实施例中,一种用于井的系统,包括:基管;第一滤管,所述第一滤管至少部分地包围基管的第一部分,以便在第一滤管和基管之间产生第一流体容纳区域;第二滤管,所述第二滤管至少部分地包围基管的第二部分,以便在第二滤管和基管之间产生第二流体容纳区域;第一阀,所述第一阀控制第一流体容纳区域和基管之间的流体连通;和第二阀,所述第二阀控制第二流体容纳区域和基管之间的流体连通,其中,所述第一阀适用于打开以便允许第一滤管附近的砂砾填充,所述第二阀适用于在第一滤管附近的砂砾填充期间闭合以便使中心通路与第二流体容纳区域隔离。 [0009] In another embodiment of the present invention, a system for a well, comprising: a base pipe; a first filter tube, the first filter tube at least partially surrounds the first portion of the base pipe, so that the first generating a filter between the pipe and the base pipe a first fluid containing region; a second filter tube, the second tube at least partially surrounds the filter a second portion of the base pipe, so as to generate a first filter between the second tube and the substrate tube two fluid containing region; a first valve, the first valve controlling fluid communication between the first fluid containing region and the base pipe in communication; and a second valve, the second valve controlling fluid communication between the second region and the base pipe receiving fluid communication, wherein the first valve is adapted for opening to permit gravel packing tube near the first filter, the second valve is closed during applicable to gravel packing tube near the first filter so that the center of the second passage isolating fluid containing region.

[0010] 在本发明的另一个实施例中,一种用于井的设备,包括:基管,所述基管具有中心通路并包括至少一个径向端口;滤管,所述滤管至少部分地包围基管的一部分,以便在滤管和基管之间建立流体容纳区域;和阀,所述阀与滤管纵向地偏移并控制流体容纳区域和中心通路之间的流体连通。 [0010] In another embodiment of the present invention, an apparatus for a well, comprising: a base pipe, the base pipe having a central passageway and including at least one radial port; filter tube, the filter tube is at least partially surrounds a portion of the base pipe, so as to establish fluid containing region between the filter pipe and the base pipe; and a valve with filter tube longitudinally offset and controls fluid communication between the fluid receiving region and a central passageway communicating.

[0011] 在本发明的另一个实施例中,一种用于井的设备,包括:基管;至少一个隔离装置,所述至少一个隔离装置产生隔离区;位于隔离区中的多个滤管;和阀,所述每个阀与所述多个滤管中的一个关联,以便独立地控制包围关联的滤管的环形区和中心通路之间的流体连通。 [0011] In another embodiment of the present invention, an apparatus for a well, comprising: a base pipe; at least one spacer means, said spacer means for generating at least one isolation region; a plurality of filter tubes in quarantine ; between the fluid and the valve, a valve associated with each of said filter and said plurality of tubes, so as to independently control the associated annular region surrounding the filter tubes and the central passageway in communication.

[0012] 在本发明的另一个实施例中,一种用于井的方法,包括如下步骤:在井中形成隔离区;在所述隔离区中设置多个滤管;在隔离区中设置管状构件,所述管状构件具有多个径向端口以便接收流通过滤管的流体;和选择性地阻断所述多个径向端口中的至少一个的流体连通,并允许所述多个径向端口中的剩余的一个或更多个的流体连通。 Embodiment, a method for well [0012] In another embodiment of the present invention, comprising the steps of: forming an isolation region in the well; a plurality of filter tubes disposed in said isolation region; a tubular member disposed in the isolation region the tubular member having a plurality of radial fluid flow port for receiving the filter tube; and selectively block at least one radial port in fluid communication with the plurality, and allowing the plurality of radial ports the remaining one or more of the fluid communication.

[0013] 根据下面的附图、说明和权利要求,本发明的优点和其它特征将变得显然。 [0013] The following figures, description and claims, other features and advantages of the present invention will become apparent.

附图说明 BRIEF DESCRIPTION

[0014] 图1是显示根据本发明的实施例的砂砾填充系统的井的示意图; [0014] FIG. 1 is a schematic diagram of a well gravel packing system according to an embodiment of the present invention is based on the display;

[0015] 图2是说明根据本发明的实施例的井中砂砾填充多层技术的流程图; [0015] FIG 2 is a flowchart illustrating a multi-layer technique according to the well to fill gravel embodiment of the present invention;

[0016]图3是根据本发明的实施例的图1的砂砾填充组件的滤管和相关流体流量控制阀的不意图; [0016] FIG. 3 is not intended to control valve assembly according to the filter tubes gravel packing diagram of an embodiment of the present invention and associated fluid flow;

[0017] 图4是根据本发明的实施例的图1的砂砾填充组件的阀的示意图; [0017] FIG. 4 is a schematic view of a valve according to the gravel packing assembly view of an embodiment of the present invention 1;

[0018] 图5是根据本发明的实施例的当打开时的滤管部分的示意图; [0018] FIG. 5 is a schematic diagram of the filter when open tube portion of the embodiment of the present invention;

[0019] 图6是根据本发明的实施例的当闭合时的滤管部分的示意图; [0019] FIG. 6 is a schematic view when the filter tube portion when closed according to embodiments of the present invention;

[0020] 图7是根据本发明的实施例的图5的滤管部分的放大图; [0020] FIG. 7 is an enlarged portion of the filter tubes in accordance with an embodiment of the present invention is 5;

[0021] 图8是说明根据本发明的实施例的防止在滤管一滤管基础上产生沙子的技术的流程图。 [0021] FIG 8 is a flowchart illustrating techniques produce a sand filter tube on the basis of the filter tube according to an embodiment of the prevent invention.

具体实施方式 Detailed ways

[0022] 参考图1,根据本发明的一些实施例,系统10用于多层砂砾填充井。 [0022] Referring to FIG 1, in accordance with some embodiments of the present invention, a multilayer system gravel packing the well 10. 系统10与竖直井眼12 —起显示,竖直井眼12被套管柱14衬垫。 The system 10 and the vertical wellbore 12-- display from the vertical wellbore 12 quilt liner string 14. 然而,请注意,根据本发明的其它实施例,系统10可用在横向井中,并可用于裸井中。 However, please note that, according to other embodiments, the system 10 of the present invention may be used in lateral wells, open hole can be used. 进一步地,请注意,根据本发明的特定实施例,系统10可用于地下油井或水下油井。 Further, note that, according to certain embodiments of the present invention, the system 10 may be used in underground wells or subsea wells. 因此,想到许多变化例,它们都在所附权利要求的保护范围内。 Thus, a number of conceivable variations, all of which are within the scope of the appended claims.

[0023] 系统10包括在套管柱(casing string) 14内部延伸的管状管柱(tubularstring) 20。 [0023] The system 10 includes a casing string (casing string) 14 extending inside the tubular column (tubularstring) 20. 管柱20包括滤管组件,例如实例性的滤管组件50和60。 String filter tube assembly 20 includes, for example, an exemplary tube assembly 50 and the filter 60. 请注意,根据本发明的特定实施例,管柱20可包括附加的滤管组件。 Please note that, according to certain embodiments of the present invention, the string 20 may include additional filter tube assembly.

[0024] 如这里所述,根据本发明的实施例,每个滤管组件50,60具有保持压力的能力(即,形成流体密封)以便防止包围滤管组件的环形区和管柱20的中心通路之间的流体连通。 [0024] As described herein, according to embodiments of the present invention, each filter tube assembly 50, 60 has the ability to maintain pressure (i.e., a fluid seal) in order to prevent the annular region surrounding the central filter pipe assembly and the string 20 fluid communication between the passage. 由于该形成流体隔离的能力,因此不需要在管柱20内部运行用于砂砾填充多层的内部工具。 Due to the ability of the fluid separator is formed, the multilayer internal gravel packing tool 20 is not required for operation of the inner tubing string.

[0025] 更具体地,根据本发明的一些实施例,每个滤管组件(例如滤管组件50和60),包括:隔离装置(例如隔离器30);阀38,该阀38把砂砾填充泥浆引导到围绕滤管组件的环形区中;滤管36 ;和阀34,阀34控制滤管组件打开和闭合。 [0025] More specifically, according to some embodiments of the present invention, each filter tube assembly (e.g., filter assembly 50 and tube 60), comprising: isolation means (e.g., an isolator 30); a valve 38, the valve 38 gravel packing guiding the annular region surrounding the mud filter tube assembly; filter tubes 36; and a valve 34, valve assembly 34 controls the opening and closing of the filter tubes.

[0026] 更具体地,根据本发明的一些实施例,每个滤管36与特定的阀34关联,阀34可直接地定位在相关的滤管36的下方,如图1所示。 [0026] More specifically, according to some embodiments of the present invention, each filter tube 36 associated with a particular valve 34, the valve 34 may be positioned directly below the associated filter tube 36, as shown in FIG. 如下面进一步的说明,在每个36的内部、滤管36和滤管组件的内部基管之间形成环形空间,用于形成容纳环空(annulus)周围流体的区域。 As further described below, within each 36, an annular space 36 between the filter tube and the inner tube assembly of the filter base pipe, the area surrounding the fluid receiving annulus (Annulus) for forming. 流体不是直接流通过基管中的端口,而是通过环形流体容纳区域流到相关的阀34,阀34与滤管36纵向地偏移(例如在滤管36的下面)。 Fluid is not directly flow (e.g. below the filter tube 36) through the port in the base pipe, but flows to the associated valve receiving region 34, the valve 34 and the filter tube 36 is longitudinally shifted through the annular fluid. 因此,根据它的状态,阀34控制流体是否与它的相关的滤管36连通和是否与管柱的中心通路连通。 Thus, according to its state, if the control valve 34 in fluid communication with its associated filter and the tube 36 communicates with the central passageway whether communication string.

[0027] 因此,根据本发明的一些实施例,经系统10的砂砾填充可以下面的方式进行。 [0027] Thus, in accordance with some embodiments of the present invention, the gravel packing system 10 may be performed in the following manner. 首先,每个滤管组件构造成使得当管柱20首先在井下运行时所有阀34闭合,因而使所有滤管组件构造成保持压力(contain pressure) 0如这里所述,各个层(每个滤管组件一个层)可以从底到顶的顺序方式填充。 First, each filter tube assembly is configured such that when the string 20 is first of all valve 34 is closed downhole operation, thus making all the filter assembly is configured to maintain a pressure tube (contain pressure) 0 As described herein, each layer (each filter a tube assembly layer) may be filled in a sequential manner from bottom to top. 换言之,当每个层被填充时,打开环形区和管柱中心通路之间对应的滤管组件的流体连通。 In other words, when each layer is filled, open the fluid filter assembly of the tube and the annular region between the tubing string corresponding to central passageway communicates. 因此,泥浆可通过阀38引导进每个层的环形区中,泥浆然后在滤管组件的滤管36周围沉淀对应的沙子,随后多余的水通过滤管36返回并进入中心通路20。 Accordingly, the slurry may be directed into valve 38 through the annular area of ​​each layer, the slurry then precipitated around the corresponding sand filter tube filter tube assembly 36, and then the excess water through the filter return pipe 36 and into the central passage 20.

[0028] 如更具体的实例,假设与滤管组件60关联的层在被填充。 [0028] As a more specific example, assume that the associated filter assembly 60 is filled in the layer. 对于该状态的管柱20,滤管组件50和滤管组件50上方的所有滤管组件构造成使滤管组件周围的环形区与管柱中心通路隔离。 For the column 20 in this state, all the filter tube assembly 50 above the filter tube and filter assembly 50 is configured such that the tube assembly and the annular region surrounding the string filter center channel spacer tube assembly. 还设置隔离器30a,还可能在管柱20的滤管组件60的下方设置一个隔离器(图1中未表示)。 Provided isolator 30a, a spacer may also be provided beneath the filter assembly 60 of column 20 (not shown in FIG. 1). 在设置好隔离器30a后,阀38a打开用于在中心通路20和围绕滤管组件60的环形区之间建立连通,以便允许砂砾填充泥浆流进正在填充的环形区(即围绕滤管组件60的环形区)。 After setting up the isolators 30a, the valve 38a is opened and the passage 20 for establishing communication between the filter tube assembly surrounding annular region 60 at the center, to permit gravel packing slurry flows into an annular region being filled (i.e., around the filter assembly 60 the annular region). 如下面进一步的说明,阀38a的打开可引起滤管组件60的所有的阀34打开,以便允许多余的水流出泥浆通过中心通路20返回。 As further described below, the valve 38a is open all the valves 34 may cause filter assembly 60 is opened to allow the slurry through the central passage 20 returns excess water to flow out.

[0029] 因此,在隔离器30a设置好并且阀38a和34打开后,泥浆通过管柱20连通,从而使泥浆离开阀38进入围绕滤管组件60的环形区。 [0029] Thus, in the separator 30a and set 38a and 34 after opening the valve, communication through the mud column 20, such that the slurry leaving the valve 38 into the annular region surrounding the filter assembly 60. 多余的水经滤管36返回。 Excess water back through the filter tube 36.

[0030] 请注意,在本发明的一些实施例中,管柱20包括在阀38上方的过渡装置(crossover device)用于在环形区和中心通路之间输送流体。 [0030] Note that in some embodiments of the present invention, column 20 comprises a valve means 38 above the transition (crossover device) for conveying a fluid between the annular region and the central passage. 这样,流进井的用于砂碌填充的泥浆例如可朝下流动到滤管组件60上方的井的环形区,并在隔离器30a上方过渡到管柱20的中心通路中。 Thus, the mud flow into the well for example, may be filled with sand bunk flows downwardly into the well annulus above the filter assembly 60, and the transition to the central passage 20 in the column above the separator 30a. 从沉积的砂砾返回的多余的水可进入滤管36,流过关联的阀34,并经管柱20的中心通路返回到过渡装置。 Returning the excess water from the deposited sand may enter the filter tubes 36, flows through the valve 34 associated with, and returns to the transition passage means through the central column 20. 从过渡装置,返回的流体可通过管柱20的中心通路与井上连通。 , May communicate with the return fluid uphole from the transition passage means through the central column 20. 然而,在本发明的其它实施例中,返回的水可经环形区与地面连通,并且泥浆流可经管柱20的中心通路从井的地面连通。 However, in other embodiments of the present invention, water may be returned through the annular region communicating with the ground, and the mud flow may be communicated from the surface of the well through the central passageway of the string 20. 因此,可想到许多变化例,它们都在所附权利要求的保护范围内。 Thus, a number of conceivable variations, all of which are within the scope of the appended claims.

[0031] 为了简要,图2说明了这里所述的本发明的实施例的技术80。 [0031] For brevity, FIG 2 illustrates an embodiment of the techniques of the present invention 80 described herein. 根据技术80,按照方框84,滤管组件运行到基管的井中,每个滤管组件与井的不同砂砾填充层关联。 According to 80, according to block 84, running into the well filter tube assembly substrate tube, associated with each filter tube assembly and gravel packing wells in different layers. 按照方框88,在井的砂砾填充期间,滤管组件被选择性地操作成保持压力以便实现流体密封,而不在基管内部运行工具。 In accordance with block 88, the well during the gravel packing, filter tube assembly is selectively operable to maintain a pressure in order to achieve a fluid tight seal, without the running tool in the interior of the substrate tube.

[0032] 图3显示滤管36和关联的阀34的实例性实施例。 [0032] FIG. 3 shows an exemplary embodiment of the filter tube 36 and associated valve 34. 如图3所示,滤管36由滤管罩102形成,滤管罩102大致包围基管104部分。 3, the filter tube 36 is formed of a filter pipe cover 102, the cover substantially encloses filter tube portion 102 of base pipe 104. 基管104形成管柱20的内部,基管104的中心通路形成管柱20的中心通路部分。 Substrate tube 104 is formed of the inner tubing string 20, the central passage 104 of the base pipe string 20 forms the central portion of the passageway. 在滤管罩102和基管104之间存在足够的环形空间用于产生流体容纳区域106,流体容纳区域106容纳进入的井液。 There is sufficient annular space between the shroud 102 and the filter base pipe 104 for generating a fluid containing region 106, the fluid receiving area receiving the well fluid 106 entering. 井液从流体容纳区域106流到阀34的纵向通路108。 Well fluid flowing from the fluid receiving region of the valve 106 the longitudinal passageway 108 34. 如果阀34闭合,如图3的实例所示,流体容纳区域106和管柱20的中心通路之间无流体连通。 If the valve 34 is closed, as shown in Example 3, no fluid between the receiving region 106 and the central passageway of the string 20 in fluid communication. 因此,在该状态下,滤管36保持压力。 Thus, in this state, the filter tubes 36 maintain the pressure.

[0033] 为了控制通路108和20之间的流体连通,阀34包括套120,该套120被构造成上下纵向地滑动,用于控制通过径向端口112的流量/流速。 [0033] In order to control fluid communication between the passage 108 and the communication 20, the valve 34 includes a sleeve 120, the sleeve 120 is longitudinally slidable up and down is configured for controlling the flow through the radial port / flow rate of 112. 在图3所示的位置处,套120闭合径向端口112以便阻止流体容纳区域106和中心通路20之间的流体连通。 In the position shown in FIG. 3, the radial port 120 is closed sleeve 112 so as to prevent fluid containing region 106 and the central passage 20 communicating between the fluid.

[0034] 套120包括活塞头124,压力可作用在活塞头124上用于在朝下的方向上移动套120以便打开通过端口112的连通。 [0034] The sleeve 120 includes a piston head 124, the pressure can act to move in a downward direction on the piston head 124 by the sleeve 120 so as to open the communication port 112. 这样,如图3所示,根据本发明的一些实施例,活塞头124的上表面可与控制流体通路110连通。 Thus, as shown in Figure 3, in accordance with some embodiments of the present invention, the upper surface of the piston head 124 may be in communication with the control fluid passage 110. 控制压力可从井的表面或其它压力源(如下面进一步的说明)连通到通路110,用于移动套120以便打开阀34。 Pressure control may be (as further described below) from the surface of the well or other pressure source to the communication passage 110, 120 for moving the sleeve 34 so as to open the valve. 如图3所示,根据本发明的一些实施例,控制流体通路110可在阀34的主体100中形成。 As shown in FIG 3, in accordance with some embodiments of the present invention, the control fluid passage 110 may be formed in the body 34 of the valve 100.

[0035] 根据本发明的一些实施例,纵向通路110可包括流体限制件(或阀34可包括另一延时机构)实现延时打开阀34。 [0035] According to some embodiments of the present invention, the longitudinal passage 110 may include a flow restriction member (or valve 34 may further include a delay mechanism) to achieve the delay valve 34 is opened. 因此,根据本发明的一些实施例,特定层中的阀34可在延时序列的每个时刻打开一次(从顶部向底部)。 Thus, according to some embodiments of the present invention, the valve 34 can be opened in a particular layer at each moment of time delay sequence (from top to bottom).

[0036] 阀34可以其它方式打开,根据本发明的其它实施例。 [0036] The valve 34 may be opened in other ways, according to other embodiments of the present invention. 例如,根据本发明的一些实施例,阀34包括夹套(collet sleeve) 130,夹套130定位在套124的下端和主体100的内表面之间。 For example, according to some embodiments of the present invention, the valve 34 comprises a jacket (collet sleeve) 130, a jacket 130 is positioned between the inner surface of the sleeve 124 and the lower end of the body 100. 在图3所示的位置处,夹套130使套120保持在闭合位置。 In the position shown in FIG. 3, the jacket 130 so that sleeve 120 in the closed position. 然而,经控制流体通路110施加的压力导致套120朝下移动并打开端口112。 However, the pressure of the control fluid passage 110 is applied to the lead sleeve 120 moves downwardly and opens the port 112. 相似地,可通过移位工具致动夹套130,例如用于使套120朝下移动以便打开端口112。 Similarly, the tool can be displaced by actuation of the jacket 130, for example, sleeve 120 is moved downwardly so as to open port 112.

[0037] 根据本发明的一些实施例,液压控制线路110的压力连通可通过阀38的动作来控制。 [0037] The communication may be controlled by the action of the pressure valve 38 according to some embodiments, the hydraulic control circuit 110 according to the present invention. 例如,参考图4,根据本发明的一些实施例,阀38可包括套178,套178控制液压流体通路110的流体压力的连通。 For example, with reference to FIG. 4, in accordance with some embodiments of the present invention, the valve 38 may include a sleeve 178, sleeve 178 controlling the hydraulic fluid pressure communication with the fluid passage 110. 更具体地,根据本发明的一些实施例,阀38包括套160,致动套160用于打开通过径向端口156的连通以便在包围阀38的环形区和管柱20的中心通路之间建立流体连通。 More specifically, in accordance with some embodiments of the present invention, the valve 38 comprises a sleeve 160, sleeve 160 actuated to open communication through the radial ports 156 to establish between the annular region surrounding the valve 38 and the central passageway of the string 20 fluid communication. 当朝下移动打开通过端口156的连通时,套160接触套178的上端,套178可包括位于环形槽166内部的套筒指状物。 When moved downwardly through the opening of the communication port 156, upper sleeve 160 contacts the sleeve 178, sleeve 178 may comprise a sleeve positioned inside the annular groove 166 of the fingers. 当套160朝下移动时,套筒指状物从槽166移开,套178朝下移动以便在通路110和管柱20的中心通路之间建立连通。 When the sleeve 160 moves downward, the fingers of the sleeve is removed from the groove 166, sleeve 178 is moved downwards so as to establish communication between the passage 110 and the central passageway of the string 20.

[0038] 请注意,阀34和38仅仅是本发明的可能的实施例的实例,可以想到其它阀设计,它们都在所附权利要求的保护范围内。 [0038] Note that valves 34 and 38 are merely possible examples of the embodiments of the present invention may conceive of other valve designs, which are within the scope of the appended claims. 例如,根据本发明的其它实施例,阀36可以是可变位置阀(variable posit1n valve),其中阀36具有多个开口位置以便为井液流提供可控的节流或扼流。 For example, according to other embodiments of the present invention, the valve 36 may be a variable position valve (variable posit1n valve), wherein a plurality of the valve 36 having an open position in order to provide a controllable throttle or choke fluid flow as well.

[0039] 在砂砾填充后滤管36仍然打开用于容纳井液。 [0039] After the gravel packing a filter tube 36 remains open for receiving well fluid. 在上述实施例中,特定滤管组件的滤管36全部一起打开或闭合。 In the above embodiment, the particular filter tube filter tube assembly 36 is opened or closed all together. 然而,在本发明的其它实施例中,特定滤管组件的滤管36单独地可控,这允许产生沙子的滤管关闭,而不用切断整个滤管组件的生产。 However, in other embodiments of the present invention, the particular filter tube assemblies individually controllable filter tube 36, which allows the production of a tube closed sand filter, the entire filter without cutting production pipe assembly.

[0040]因此,根据这里所述的本发明的实施例,在从井生产期间滤管组件的单个滤管可选择性地关闭,用于隔离还没有充分地填充的部分。 [0040] Thus, according to an embodiment of the present invention described herein, a single filter tube filter tube assembly during production from the well may be selectively closed to isolate not fully filled portion. 独立地填充的特定滤管或多个滤管可由井的地面处的操作员来确定,例如通过滤管打开和关闭的迭代过程,用于评估哪些滤管在产生沙子。 Independently of the particular filter tubes filled or more operators at the surface of the well filter tube may be determined, for example by opening and closing the filter tubes iterative process for evaluating which produced sand filter tube. 一旦已经识别导致产生沙子的滤管或多个滤管,然后(通过操作员的动作)关闭滤管以便允许从其余层生产。 Once the sand has lead to identification of a plurality of filter tube or filter tubes, then (by the action of the operator) so as to allow closing of the filter tubes produced from the remaining layers.

[0041] 图5大致显示本发明的一些实施例的滤管分段200。 [0041] Figure 5 generally shows some embodiments of the filter tube segment 200 of the present invention. 井中的关联的滤管组件可包括多个滤管分段200。 Associated with the well filter tube filter assembly may include a plurality of tube segments 200. 滤管分段200显示可与特定的滤管罩220 —起使用用于控制通过滤管罩220的井液的流量的阀。 Filter tube segment 200 may be displayed with a specific filter cap tube 220-- used together to control the flow through the filter pipe cover 220 well fluid valve. 前述控制独立于滤管组件的其它滤管的相关流量控制。 Independently of the other controls the filter tube filter tube assembly associated flow control.

[0042] 在图5所示的实例中,滤管200包围基管210的一部分,基管210的一部分形成生产管柱的一个分段。 [0042] In the example shown in FIG. 5, the filter tube 200 surrounds a portion of the base pipe 210, a portion of the substrate tube to form a segment of the production string 210. 因此,当滤管罩220容纳井液流时,井液流动到滤管罩220中并且通过基管210的径向端口230朝井的地表流动。 Thus, when the cover 220 receiving well filter tube flow, the well fluid flows into the well and the surface flow towards the filter tube 220 in the cover 210 through the radial ports 230 of the base pipe.

[0043] 滤管分段200包括套240,套240形成滤管分段200的阀的流体控制元件。 [0043] The filter tube segment 200 includes a sleeve 240, sleeve 240 is formed filtered off valve 200 of the pipe segment fluid control element. 特别地,套240位于基管210的内部并与基管210同轴(即,具有相同的纵向轴线201)。 In particular, the sleeve 240 located inside the base pipe 210 and is coaxial with the base pipe 210 (i.e., having the same longitudinal axis 201). 套240可位于滤管220的上方(在图5所示的实例中),并且阀240的位置控制流体是否通过径向端口230 (如图5所示,阀处于打开状态)或者控制是否控制阻止流体连通(如图6所示,阀处于闭合位置)。 Sleeve 240 may be located above (in the example shown in FIG. 5) of filter tubes 220, and the position of the valve 240 controls whether the fluid through the radial ports 230 (shown in Figure 5, the valve is in an open state) or blocking controls whether the control fluid communication (as shown in Figure 6, the valve is in the closed position).

[0044] 继续参考图5,在它的上端附近,套240连接到卡环250,卡环250把套240锁止在打开位置(图5)或闭合位置(图6)。 [0044] With continued reference to FIG. 5, in the vicinity of its upper end, sleeve 240 is connected to the collar 250, the collar 250 locking sleeve 240 in the open position (FIG. 5) or closed position (FIG. 6). 图7显示当套240在它的下部开口位置时、套240和它的关联元件的更详细的视图,如图5所示。 Figure 7 shows the sleeve 240 when in its lower open position, a more detailed view of the sleeve 240 and its associated components, as shown in FIG. 卡环250位于套240的外部环形槽中,并且当阀打开时卡环250卡扣到基管210的内部环形槽258 (参见图6)中。 Snap ring 250 located in an outer annular groove of the sleeve 240, and the valve is opened when the snap ring 250 snaps into the inner annular groove 210 of the base pipe 258 (see FIG. 6). 相反,当套240处于它的关闭阀的最上部位置(图6所示的状态),卡环250卡扣到基管210的内部环形槽254(参见图5)中。 254 (see FIG. 5) in contrast, when (the state shown in FIG. 6) sleeve 240 is in its uppermost position of the shut-off valve, the snap ring 250 snaps into the base pipe 210. The inner annular groove. 卡环250处于适当的槽254,258后,套240被“锁定”到适当位置。 Snap ring 250 in an appropriate groove 254, 258 after, the sleeve 240 is "locked" into place.

[0045] 为了改变阀的状态,移位工具可运行到管柱和基管210的中心通路中用于接合套240的内部轮廓241。 [0045] In order to change the state of the valve, the displacement tool can be run into the central passage 210 of the tubing string and the base pipe 241 for the internal profile of the sleeve 240. 因此,一旦与轮廓241接合,移位工具的运动可用于把套240移动到适当位置以便打开或关闭阀。 Thus, upon engagement with the profile 241, moving the tool may be used to shift sleeve 240 moved into position so as to open or close the valve.

[0046] 参考图8,为了概述,根据这里描述的本发明的实施例,技术300可用于隔离区中的特定滤管以便使沙子产生最少。 [0046] Referring to Figure 8, for an overview, in accordance with embodiments of the invention described herein, the technique 300 may be used to isolate a specific region so that the sand filter tube to produce a minimum. 根据技术300,按照方框304,在井中形成隔离区(即沙子产生层),按照方框310,滤管设置在隔离区中。 According to 300, according to block 304, the isolation region is formed in a well (i.e., produce sand layer), in accordance with block 310, filter tubes disposed in the isolation region. 接下来,基管设置成容纳来自隔离区的流体(方框314),并且通过滤管的流体连通被选择性地封闭和允许(方框318)用于寻找允许产生过量沙子的滤管,并且允许滤管产生不过量的沙子。 Next, the substrate tube is provided to receive fluid from the isolation region (block 314), and fluid communication through the filter tubes are selectively closed and allowed (block 318) to allow for finding excessive sand filter tube, and but the amount of produced filter tubes allow sand.

[0047] 尽管已经参考优先实施例说明了本发明,但是根据本发明的公开,对于本领域的熟练技术人员而言,各种变化和修改是显而易见的。 [0047] While the preferred embodiment has been described with reference to the present invention, but according to the present invention is disclosed, for a person skilled in the art that various changes and modifications will be apparent. 所附权利要求覆盖本发明的精神和保护范围内的所有变化和修改。 Spirit and cover all changes and modifications within the scope of the invention as claimed in the appended claims.

Claims (9)

1.一种用于具有多个砂砾填充层的井的系统,包括: 基管,所述基管包括中心通路、第一径向端口和第二径向端口; 第一滤管,所述第一滤管至少部分地包围基管的第一部分,以便在第一滤管和基管之间产生第一流体容纳区域; 第二滤管,所述第二滤管至少部分地包围基管的第二部分,以便在第二滤管和基管之间产生第二流体容纳区域; 第一阀,所述第一阀控制第一流体容纳区域和基管之间的流体连通; 第二阀,所述第二阀控制第二流体容纳区域和基管之间的流体连通; 阀控制连通路径,适于将流体压力与第一阀和第二阀连通以响应于所述流体压力使得第一阀从关闭状态过渡到打开状态以及使得第二阀从关闭状态过渡到打开状态;以及延时元件,设置在所述阀控制连通路径中以将流体压力到第二阀的连通延迟以使得第一阀和第二阀响应于流体压 1. A well system having a plurality of layers of gravel packing, comprising: a base pipe, the base pipe includes a central passage, a first radial port and a second radial port; a first filter tube, said first a filter tube at least partially surrounds the first portion of the base pipe, so as to generate a first fluid containing region between the first tube and the base pipe filter; a second first filter tube, the second tube at least partially surrounds the filter base pipe two portions, so as to produce a second fluid containing region between the second tube and the base pipe filter; a first valve, said control fluid communication between the first fluid containing region and the substrate tube communicating a first valve; a second valve, the said second valve controlling fluid communication between the second fluid containing region and the base pipe in communication; communication path control valve, fluid pressure adapted to communicate with the first and second valves in response to the fluid pressure from the first valve such that transition to a closed state and an open state such that the second valve transitions from the closed state to the open state; and a delay element, a control valve disposed in the communication path to communicate fluid pressure to the second valve and the first valve so that the delay a second valve in response to fluid pressure 被引入到阀控制连通路径中以延时序列打开, 其中,第一滤管和第二滤管、所述阀控制连通路径和所述基管适于作为一个单元下入到井下, 其中所述第一阀适于打开以便允许第一滤管附近的砂砾填充,所述第二阀适于在第一滤管附近的砂砾填充期间闭合以便使中心通路与第二流体容纳区域隔离。 Is introduced into the communication path control valve to open the delay sequence, wherein the first filter and a second filter tubular pipe, said valve control communication path and the base pipe is suitable as a unit into the underground, wherein said the first valve is adapted to open to permit gravel packing tube near the first filter, the second valve adapted to close the central passage and the second fluid containing region isolated during gravel packing vicinity of the first filter tube.
2.根据权利要求1的系统,还包括: 隔离器,适于设置成形成含有第一滤管和第二滤管的隔离区。 2. The system of claim 1, further comprising: a spacer adapted to form the isolation region is provided comprising a first tube and the second filter filter tubes.
3.根据权利要求1所述的系统,其中: 所述延时元件包括流动限制件。 3. The system of claim 1, wherein: said delay element comprises a flow restriction member.
4.根据权利要求1所述的系统,其中: 所述阀控制流通路径包括适于与流体连通的控制管线。 4. The system of claim 1, wherein: the flow path includes a control valve adapted to control fluid communication line.
5.一种用于砂砾填充井的方法,包括如下步骤: 把管柱上的滤管组件运行到井中,所述管柱包括滤管组件、阀和基管,其中每一个滤管组件包括滤管,滤管环绕基管的不同部分以在滤管和基管之间形成流体接收区域,每一个阀与不同的滤管组件相关联以独立控制流体接收区域中的一个与基管的流体连通; 将砂砾填充泥浆连通到井内; 将控制流体压力连通到井下,控制流体压力的连通与砂砾填充泥浆的连通彼此分开;以及在井下,顺序地将流体压力连通到第一阀和第二阀,以及调节将流体压力连通到第一阀和第二阀的顺序连通以调节由第一阀和第二阀接收流体压力,从而使得第一阀和第二阀以要求的序列打开。 5. A method for gravel packing a well, comprising the steps of: operating the filter tube assembly into the well on a pipe string, said pipe string comprising a filter assembly, valves and the base pipe, wherein each of the one filter assembly comprising a filter tube tubes, different portions of the filter tubes surrounding the base pipe to form a fluid-receiving area between the filter tube and the substrate tube, each with a different valve assembly associated with the filter tube in a fluid independent control of the base pipe in fluid communication with the receiving region ; communicating the gravel packing slurry into the well; the control fluid pressure to the downhole communication, the communication control fluid pressure from each other in communication with the filling gravel slurry; and downhole fluid pressure is sequentially communicated to the first and second valves, and adjusting the fluid pressure communicated to the order of the first and second valves to regulate the communication of fluid pressure received by the first and second valves such that the first and second valves to open the required sequence.
6.根据权利要求5所述的方法,其中: 将控制流体压力连通到井下的步骤包括使用控制管线连通流体压力。 6. The method according to claim 5, wherein: the step of controlling fluid pressure communicated to the downhole control line includes using a fluid pressure communication.
7.根据权利要求5所述的方法,其中: 调节由第一阀和第二阀接收流体压力的步骤包括延迟井下的流体压力。 7. The method according to claim 5, wherein: the step of adjusting the fluid pressure received by the first and second valves comprises a delay downhole fluid pressure.
8.一种与井一起使用的系统,包括: 基管; 滤管,至少部分围绕基管的第一部分以在滤管与基管之间形成流体接收区域; 第一阀,响应于在第一阀的控制端口处的流体压力控制流体接收区域与基管的流体连通; 第二阀,适于选择性地打开以控制在基管的中心通路与围绕基管的环空区域之间的砂砾泥浆连通;以及第三阀,适于作为单元的一部分下入到井下,并且选择性地将第一阀的控制端口暴露到压力以开启第一阀。 8. A system for use with a well, comprising: a base pipe; filter tubes, at least partially surrounding a first portion of the base pipe to form a fluid-receiving area between the base pipe and the filter tube; a first valve in response to the first fluid pressure at the control port of the valve control fluid receiving area in fluid communication with the base pipe; a second valve is adapted to selectively opened to control the central passageway between the base pipe and the annular region surrounding the base pipe gravel slurry communication; and a third valve, into suitable as part of the downhole unit, and selectively exposing a first port to a pressure control valve to open the first valve.
9.根据权利要求8所述的系统,其中: 所述第二阀适于与包括砂砾和流体的砂砾填充泥浆连通,使得滤管过滤出砂砾。 9. The system of claim 8, wherein: said second valve is adapted to communicate with the grit and gravel packing fluid comprising a slurry, so that the filter tube filter gravel.
CN200810085467.5A 2008-03-19 2008-03-19 Method and equipment for completed well CN101539006B (en)

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Citations (6)

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Publication number Priority date Publication date Assignee Title
US4241787A (en) * 1979-07-06 1980-12-30 Price Ernest H Downhole separator for wells
US5896928A (en) * 1996-07-01 1999-04-27 Baker Hughes Incorporated Flow restriction device for use in producing wells
US6622794B2 (en) * 2001-01-26 2003-09-23 Baker Hughes Incorporated Sand screen with active flow control and associated method of use
US6644412B2 (en) * 2001-04-25 2003-11-11 Weatherford/Lamb, Inc. Flow control apparatus for use in a wellbore
US6722440B2 (en) * 1998-08-21 2004-04-20 Bj Services Company Multi-zone completion strings and methods for multi-zone completions
US6857475B2 (en) * 2001-10-09 2005-02-22 Schlumberger Technology Corporation Apparatus and methods for flow control gravel pack

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4241787A (en) * 1979-07-06 1980-12-30 Price Ernest H Downhole separator for wells
US5896928A (en) * 1996-07-01 1999-04-27 Baker Hughes Incorporated Flow restriction device for use in producing wells
US6722440B2 (en) * 1998-08-21 2004-04-20 Bj Services Company Multi-zone completion strings and methods for multi-zone completions
US6622794B2 (en) * 2001-01-26 2003-09-23 Baker Hughes Incorporated Sand screen with active flow control and associated method of use
US6644412B2 (en) * 2001-04-25 2003-11-11 Weatherford/Lamb, Inc. Flow control apparatus for use in a wellbore
US6857475B2 (en) * 2001-10-09 2005-02-22 Schlumberger Technology Corporation Apparatus and methods for flow control gravel pack

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