CN100523428C - A method and apparatus for creating a cemented lateral junction system - Google Patents

A method and apparatus for creating a cemented lateral junction system Download PDF

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Publication number
CN100523428C
CN100523428C CN 200380103060 CN200380103060A CN100523428C CN 100523428 C CN100523428 C CN 100523428C CN 200380103060 CN200380103060 CN 200380103060 CN 200380103060 A CN200380103060 A CN 200380103060A CN 100523428 C CN100523428 C CN 100523428C
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China
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wellbore
branch
sleeve
system
cement
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CN 200380103060
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Chinese (zh)
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CN1711407A (en
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A·C·米尔斯
D·J·默里
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贝克休斯公司
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Priority to US60/425,355 priority
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Publication of CN1711407A publication Critical patent/CN1711407A/en
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Publication of CN100523428C publication Critical patent/CN100523428C/en

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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B29/00Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
    • E21B29/06Cutting windows, e.g. directional window cutters for whipstock operations
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00Sealing or packing boreholes or wells
    • E21B33/10Sealing or packing boreholes or wells in the borehole
    • E21B33/13Methods or devices for cementing, for plugging holes, crevices, or the like
    • E21B33/14Methods or devices for cementing, for plugging holes, crevices, or the like for cementing casings into boreholes
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B41/00Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/0035Apparatus or methods for multilateral well technology, e.g. for the completion of or workover on wells with one or more lateral branches
    • E21B41/0042Apparatus or methods for multilateral well technology, e.g. for the completion of or workover on wells with one or more lateral branches characterised by sealing the junction between a lateral and a main bore

Abstract

一种用于形成已注水泥的分支井连接点的装置,包括具有预先机加工孔(12)的套(10)和设置在该套上的罩(14),在罩上设置有一种释放材料(16)。 An apparatus for connecting a branch point cementing wells have been used to form, comprising a pre-machined hole (12) of the sleeve (10) disposed on the cover and the sleeve (14), is provided in the cover there is a release material (16). 进一步披露的是一种构造井筒的方法,该方法包括制备具有预先机加工窗口(12)的套(10)、设置成用于封闭该窗口的罩(14)和一种用于在井眼中起作用的位于通过所述窗口暴露于环境中的在所述罩的至少一部分上的释放材料。 Further disclosed is a configuration of a wellbore, the method comprising preparing a pre-machined window (12) having a sleeve (10), provided the cover (14) to enclose the window and for use in a wellbore from action is in the released material on at least a portion of the cover exposed to environment through said window. 该方法还可以包括在井眼中安装该套以及围绕该套在井眼的环空中施加可硬化试剂。 The method may further include installing the sleeve and surrounding the sleeve is applied to the wellbore annulus in the wellbore hardenable agent.

Description

形成已注水泥的分支井连接点系统的装置和构造井筒的方法 Forming apparatus and method have been configured wellbore cementing branch wellbore junction system

相关申请的交叉参者 CROSS REFERENCE TO RELATED APPLICATIONS person

本申请要求2002年11月11日申请的,美国临时申请系列号为NO.60/425,355的在前专利申请的权益,在此通过参考结合其全部公开内容。 This application claims the November 11, 2002 application, US Provisional Application Serial No. interests of the former patent NO.60 / 425,355 application and incorporated by reference herein the entire disclosure.

背景技术 Background technique

尤其在最近几年,烃类的勘探钻井和开釆方案已经常采用多分支井技术。 Especially in recent years, and hydrocarbons exploration drilling program has been opened preclude multilateral wells often used technique. 根据定义,这类井筒包括主井筒和分支井筒之间的交点。 By definition, such a wellbore comprising the intersection between the main wellbore and the branch wellbore. 这些交点被称为连接点。 These intersections are referred to as the point of attachment. 在多分支井技术提升(TAML)定性系统中根据连接点的特性从1级到6级来确定连接点。 In multilateral wells lifting technique (TAML) characterization system to determine the point of attachment from stage 1-6 according to the characteristics of the connection point. 在该系统中1级是复杂性和功能最低的,6级是复杂性和功能最高的。 In this system, Level 1 is the lowest complexity and functionality, level 6 is the highest complexity and functionality. 有很多工具和/或系统可以用来形成分支井连接点系统,其中一种是由位于德克萨斯州,休斯敦的贝克石油工具(Baker Oil Tools)商业提供的产品,并且在业界作为一种挂钩悬挂器尾管(liner)系统而知名。 There are many tools and / or systems may be used to form a branch wellbore junction system, one of which is located in Texas, Houston Baker Oil Tools product (Baker Oil Tools) is commercially available, and in the industry as a Liner hanger hook (Liner) systems is known. 该系统凭借能非常有效地形成一个根据多分支井技术提升(TAML)定性系统的3级多分支连接点为人们所熟知。 With this system can be very effective to form a multi-drop technology to enhance well three multi-branch connection point (TAML) characterization system are well known. 该系统很通用并且对于预定目标非常有效, 但是不能依靠它提供一个要求TAML4级的已注水泥的连接点。 The system is very versatile and effective for the intended target, but does not rely on it to provide a connection point has been cemented TAML4 level requirements. 虽然挂钩悬挂器尾管系统有时侯被注水泥并且能够形成一个不是现在所期望的注水泥连接点。 While the hook hanger tailpipe system is sometimes cemented and can not now desired to form a cementing connection point. 目前规定注水泥和清洗过程胶结分支管的环状空间但不胶结连接点上部,因为作为一种实际的材料,在清洗过程中将水泥从连接点区域冲洗掉。 Note predetermined current cement annulus cementing and cleaning process of the branch pipe without cementing the upper connection point, because as a practical material, cement flushed out from the connection point in the region of the cleaning process.

由于注水泥连接点通常是理想的并且挂钩悬挂器尾管系统是常用的而且是有效的多分支井工具,因此在那些需要形成一个注水泥的4 级连接点的井中具有一个能够形成注水泥4级连接点的挂钩悬挂器尾管系统将会被业界很好地接受„发明内容在这里公开了一种用于形成一个注水泥的分支井连接点系统的工具,该工具包括具有预先加工的孔的套和配置在套上的罩。 一种释放材料设置在罩上。在这里还公开了一种构造井筒的方法,其包括在分支井连接点系统上安装分支井转向器并且在分支井转向器上应用释放材料。该方法还包括在井孔中运行前述元件并且在分支井出射窗部署分支井连接点系统。在分支井连接点系统中应用可硬化试剂。进一步地, 一种构造井筒的方法,其包括制备具有预加工的窗口的套管、设置成用于关闭该窗口的軍和用于在井眼中起 Because cementing the point of attachment is often desirable and the hook hanger tail pipe system is commonly used and is effective in a multi-branch well tools, in a well that is necessary to form a note four connection points cement having one capable of forming a cementing 4 the point of attachment hook stage tailpipe hanger system will be well accepted by the industry. "SUMMARY oF tHE iNVENTION disclosed herein is a tool of a branch wellbore cementing system for forming a connection point, the tool comprising a hole having a pre-prepared and a sleeve disposed in the cover sleeve. a cover release material is disposed. also disclosed herein a method of constructing a wellbore which includes a diverter mounted in the branch wellbore a branch well and the connection point of the steering system in the branch wellbore application of release material on the filter. the method further includes running foregoing elements in the wellbore and the branch wellbore exit window deploy branch wellbore junction system connection points in the system application of the hardenable agent in branch well. further, a configuration of the wellbore a method which comprises preparing a cannula having a pre-machined window, is provided for closing the window and for the military in the wellbore from 用的位于通过窗口暴露于环境中的罩的至少一部分上的释放材料。该方法还包括在井眼中安装套管和围绕套管在井眼的环形空间中应用可硬化试剂。采用本发明的技术方案能够克服现有技术中的不足,使连接点很容易完全注水泥,并允许水泥凝固和然后具有移动罩的能力以便钻井以向后进入主井筒。进一步,本发明的方法和装置可以用来形成任何一种需要仅仅定位、定向和确定深度的连接点。附图说明现在参考附图,其中在这几个附图中相同的元件编号相同: 图1为一个具有革的预先机加工窗口连接点的截面示意图; 图2为在一个井眼中的分支井连接点系统的截面正视图; 图3为刚完成注水泥步骤的图2中实施例的视图; 图4为主井孔被重新打开的图2中实施例的视图。 具体实施方式这里通过举例讲述的是一种在水泥凝固以后使放入井底并且已注水泥 Positioned through the window exposed to the environment of the release of the cover material on at least a part of the method further comprises a sleeve mounted around the sleeve and the annular space of the wellbore hardening agent may be applied in the wellbore. The art with the present invention ability to overcome deficiencies of the prior art embodiment of the connector is easy to fully cemented, and allowing the cement solidification, and then moved with the cover so as to rearwardly into the main wellbore drilling. further, the method and apparatus of the present invention can be used any form needs only positioning, orientation and depth to determine the connection point of the drawings Referring now to the drawings, wherein like in these elements the same reference numbers: Figure 1 is a machine having a pre-processing window leather connection schematic sectional view point; FIG. 2 is a lateral well in a borehole is a cross-sectional elevation view of the connection points of the system; FIG. 3 is a cementing has just completed step 2 in FIG view of an embodiment; FIG. 4 is the main wellbore reopened in view of the FIG. 2 embodiment. DETAILED DESCRIPTION herein by way of example it is about to make a bottom and placed after the cement solidification has cementing 部件被从放入的位置移动的方法和装置。该部件可以是多种类型并且包括管子(例如,整个连接点的可移动性),具有被覆盖的窗口的管子(下面讨论的),等等。这需要相对于想要移动的部件克服水泥的粘接性。为此在部件上使用释放剂,这样水泥不能在那里粘着。该释放剂是一种在水泥和部件之间的物理隔离层。释放剂可以是提供将释放剂粘接到部件上的多种类型,通过使用常规设备在常规井操作中拖动不足以阻止该克服。 Method and apparatus components are moved from the inserted position of the member may be of various types, and comprises a tube (e.g., the entire connecting point mobility), the tube having a window to be covered (discussed below), and the like this requires movement of the member relative to the desired adhesive cement overcome this purpose the release agent on the member, so that the cement can not be adhered there. the release agent is a member between the cement and the physical barrier. the release agent may be adhered to the release agent to provide a plurality of types of the components, by using conventional equipment to overcome the drag insufficient to prevent the conventional well operations.

在此公开的该方法和装置可能包括(见图l)其中具有预机加工 The method and apparatus disclosed herein may include (see FIG. L) having a pre-machined

的窗口12的管状部件10和用于开口的罩14。 The tubular member 12 of the window 10 and the cover 14 for the opening. 该罩具有阻止水泥通过窗口进入的部分并且该部分至少部分涂有一种释放剂16以阻止或减少水泥在那里的粘着。 The cover prevents cement having entered through the window portion and the portion is at least partially coated with a release agent 16 to prevent or reduce cement adhered there. 在这种条件下,可以是管套的罩14在注水泥后可以被很容易地移动。 In this condition, the shroud may cover 14 can be easily moved after cementing. 随着軍被移动,自超过预机加工的窗口钻碎水泥是一件很简单的事情。 As the army was moved from over the pre-machined window broken cement drill is a very simple matter. 当然应该注意如果作为罩的金属在钻井操作的同时或者在之前被移去的话,将没有金属需要被钻除。 Of course, as should be noted that if a metal cover while the drilling operation is removed or before, it will not need to be drilled in addition to the metal.

前述原理的一个实施例是构成注水泥的连接点。 A principle of the foregoing embodiment is configured cementing connection point. 该原理使连接点很容易完全注水泥,允许水泥凝固和然后具有移动该罩的能力以便钻井以向后进入主井筒。 This principle is easy to complete the connection cementing, cement solidification, and then allowed to have the ability to move the cover back into the main wellbore to the drilling. 该原理很清楚,该方法和装置都可以用来形成任何一种需要仅仅定位、定向和确定深度的连接点,根据从位于德克萨斯州,休斯敦的贝克石油工具商业上得到的桂钩悬挂器尾管系统的例子很容易描述该原理。 The principle is very clear that the method and apparatus may be used to form any required merely positioning, orientation and depth of the connection point is determined, in accordance with the suspension obtained from the hook Gui Texas, Houston commercial Baker Oil Tools examples tailpipe description of the system is easy principle.

由于本领域的技术人员将会很熟悉该桂钩悬挂器尾管系统,所以 Since those skilled in the art will be familiar with the hanger hook Gui tailpipe system, the

在此用它作为一个该类型的装置和方法的一个例子来披露。 Here it as an example of a type of the apparatus and methods disclosed to use. 在此省略了它的部件以及利用该部件的方法的描述。 It is omitted here and a description of its components using the component approach. 在此的描述主要集中于有关在此公开的区别和构成与在前桂钩悬桂器尾管系统这种区别的部件的相关位置。 Described herein is focused on the relevant location of this distinction and difference in configuration disclosed herein with the front hook Gui Gui tailpipe suspension system components. 为了讨论的目的,假设存在第一井筒或主井筒和由此延伸的分支井筒。 For purposes of discussion, it is assumed the presence of a first lateral wellbore and the main wellbore or wellbore extending therefrom. 同样应该注意所述术语第一井筒或主井筒仅规定为相对术语并且表示由其引出一个分支井筒的井筒。 It should also be noted that the term first well bore or main wellbore to a predetermined relative terms only and represented by a lead-out branch wellbore the wellbore. 实际上,这样的第一井筒或主井筒实际上自身可以是出自另一个第一井筒的分支井筒,等等。 In fact, this is actually the first well bore itself or the main wellbore may be from a first lateral wellbore another wellbore, and the like. 本领域的技术人员将会懂得这样的结构是如何产生的。 Those skilled in the art will know how such a structure is produced. 这与本发明的公开不密切。 This is not germane to the present invention is disclosed.

参考图2,给出了一个挂钩悬挂器尾管系统部件的概图和相对位置。 Referring to FIG 2, gives a hanger hook member tailpipe system overview and relative position. 用套管112,窗口116和由此延伸的分支井筒118来说明了第一或主井筒110。 Cannula 112, window 116 and lateral wellbore 118 extending therefrom is apparent to a first or main wellbore 110. 相关设备安装在钻柱124的一段的末端。 Related equipment mounted on the end section of the drill string 124. 首先,衬管送入工具128与带有牵索扩大部分的衬管坐封套130和衬管套132 —起被安装在钻杆124上。 First, a liner running tool 128 and the liner with lanyard enlarged part of the tube 130 and the seat liner sleeve cuff 132-- from drill pipe 124 is mounted. 靠近衬管送入工具128安装于衬管套132的是外部套管封隔器134。 Near the liner running tool 128 is attached to the liner sleeve 132 is an outer casing packer 134. 一个任选的外部套管封隔器保持在主井筒110 中。 An optional external casing packer 110 remains in the main wellbore. 在衬管套132内,连接于衬管送入工具128的是尾管136,其具有一个连接于尾管136的可移动的反向抽吸皮碗138。 Inside the liner sleeve 132 is connected to the liner running tool 128 is a tail pipe 136 which has a reverse suction cup 138 connected to a tail pipe 136 movable. 允许衬管套132 剩余部分直径变小的截面140位于沿着衬管套132长度的约2/3处。 Allowing the remaining portion of the liner sleeve 132 of reduced diameter cross-section along the liner 140 located at about 2/3 of the length of sleeve 132. 并且,靠近尾管136末端有一个外部套管封隔器142,该封隔器可以用来封隔衬管套132和分支井筒118之间的环形空间。 And, close to the end of the tail pipe 136 has an outer casing packer 142, the packer may be used to set the packer annular space between the liner 132 and lateral wellbore 118. 注水泥阀144 位于衬管套132上外部套管封隔器142正上方的位置。 Cementing valve 144 is located in the liner position of the outer sleeve 132 on the packer sleeve 142 just above. 在衬管套132内外部套管封隔器134的下方是一个预先铣成的窗口152,该窗口允许在完成分支井筒118和主井筒110之间的连接后从新进入主井筒110。 Below the liner sleeve within the outer sleeve 132 of the packer 134 is a pre-milled window 152, the window allows complete the connections between the main wellbore and a lateral wellbore 118 110 110 re-enters the main wellbore. 在衬管套132上有"挂钩"146,该挂钩的主要功能(除了别的以外)包括:(1) 作为一个制动器以防止衬管套132退出窗口116;和(2) 悬挂衬管套132的重量和任何导致的或其他相关载荷。 The "hook" 146, the hook main functions (among other things) on the liner comprises a sleeve 132: (1) as a brake to prevent the liner sleeve 132 to exit window 116; and (2) the suspension liner sleeve 132 weight and any lead or other loads. 在衬管套132的内径内设置了一个分支井转向器160以临时阻挡通过窗口152进入主井筒110。 160 to temporarily block 152 through the window 110 into the main wellbore provided with a branch well liner diverter within the inner diameter of the sleeve 132. 分支井转向器同样为衬管套132提供刚性。 Diverter branch well liner sleeve 132 likewise provides rigidity. 在一个实施例中,分支井转向器160还包括在上口和下口的密封162,如O形环。 In one embodiment, the diverter branch well 160 and further comprising a seal at the mouth of the upper opening 162, such as an O-ring. 在使用密封162的实施例中,衬管套132也可以包括磨光的密封孔,在衬管套132的内径上密封162与衬管套132的内径接触。 In embodiments using seals 162, liner sleeve 132 may also include polished seal bore, the inner diameter of the seal 162 in contact with the liner sleeve 132 on the inner diameter of liner sleeve 132. 在井眼中运行该工具之前分支井转向器160安装于图1中所示的位置并且在它的外径上用材料164进行处理。 Prior to running the tool in the wellbore to a branch wellbore diverter 160 is mounted in the position shown in FIG. 1 and treated with a material 164 on its outside diameter. 如上面所提到的, 材料164 (释放剂)的目的是防止随后应用于分支井转向器160部分(或至少一部分)的水泥的粘结,如果不是该材料通过窗口152暴露出的话,将会产生粘结。 As mentioned above, the purpose of material 164 (release agent) is to prevent the steering shaft 160 is then applied to the branch portion (or at least a portion) of the cement bond, if the material is not exposed through the window 152, it will produced bond. 一种适当的材料是硅橡胶,另一种是聚氨酯, 还有一种是乳胶漆,但是可以懂得任何在水泥硬化和/或胶结后有助于移动转向器160的材料都是可以接受的。 One suitable material is silicone rubber, another is polyurethane, there is a latex paint, but may help to understand any movement of the diverter material 160 is acceptable after the hardening of the cement and / or cement. 实际上,这意味着一种与转向器160或与水泥(当产生相同的结果时,界面释放,转向器材料(diverter垂to誦material ),或水泥材料(material画to-cement)都不重要)bond)的材料将是一种可以被接受的材料,弱仅被解释为允许转向器从那里被分离并且向上口拖动时不需要与不正常的从井筒拖动转向器相关的特殊的过程。 In practice, this implies a diverter 160 or with the cement (when produced the same results, the release of the interface, the diverter material (down to recite Diverter Material's), or cement material (material Videos to-cement) is not important ) Bond) the material may be an acceptable material to be construed to be merely the weak upward and separated therefrom to allow the diverter does not require special procedures related to abnormal steering drag the wellbore from the opening when dragging . 需要说明在一些应用中释放材料与水泥表面的"弱"键在一些情况下可以被优选,由于在那种情况下会被带出井外的更多的释放材料仍然粘附在转向器或套上。 Note that the surface of the release material and cement in some applications, the "weak" key in some cases may be preferred, since in that case will be brought out more of the release material still adhered well on the outer or diverter sleeve . 这将减少井的额外的污染物。 This will reduce the extra pollution well. 具有较强键性能的材料也可以使用,在所述强鍵材料和所迷转向器160之间插入提供的辅助释放剂以达到需要的释放特性。 A strong bond material properties may also be used, the auxiliary release agent is a strong bond between the material and the diverter 160 is inserted to provide fans to achieve the desired release characteristics. 在注水泥期间,转向器160和它的材料一起阻止水泥进入衬管套132的内径。 During cementing, with the diverter stop 160 and its inner diameter of the liner material into the cement jacket 132. 应该注意释放剂或材料的其他性能或许与特殊操作有关。 It should be noted that the release agent or other material properties may be related to special operations. 例如, 在某些应用中,它可能需要材料具有弹性,然而在其他情况下,并不需要。 For example, in certain applications, it may require a material having elasticity, whereas in other cases, is not required. 由此发明者可以预测由于当套,转向器等被移动并且如果不是所有的材料都释放到钻井液中时,弹性材料可能不会产生额外的损害, 因此弹性材料将更经常地被优选。 The inventors thus can be predicted because when the cover, diverter, etc. is moved and if not all of the materials are released into the drilling fluid, the elastic material may not result in additional damage to the elastic material will often be preferable. 此外,还应该考虑应用材料的厚度。 In addition, the application should be considered the thickness of the material. 当仅有材料的一薄层就能够阻止水泥胶结的时侯,薄材料在分离后以薄片的形式从界面脱出。 When only a thin layer of material can be prevented cementitious at the right time, in the form of a thin sheet of material released from the interface after separation. 材料的厚应用是在更厚的块中脱出。 Applied thickness is thicker in the extrusion block. 取决于井设备所要遇到的情况,薄片或厚块将会更合乎需要。 Depend on the circumstances to be encountered by the well apparatus, chunks or sheets will be more desirable. 另外,如所需弹性程度的其他因素可能影响对材料厚度的选择,应用厚的材料将更具有弹性。 In addition, other factors such as the desired degree of flexibility may influence the selection of material thickness, application of a thick material having a greater elasticity. 最后应该知道在这里描述的相似的情况下,除水泥外的其他可硬化的材料也可以使用。 Finally it should be known under similar circumstances described herein, other curable materials other than cement, can also be used. 在这种情况下,为了产生一个需要的结果,应该考虑材料/释放剂的化学组成的相容性,按规定结果是从一套可硬化试剂中得到的转向器、套和軍等的释放性。 In this case, in order to produce a desired result should be considered chemically compatible material / release agent composition, the result is a predetermined release obtained from a hardenable agents diverter, cover the military and the like . 参考图2-4,可以看到在井筒中转向器160位置的上方延伸的水泥浆液柱很大,因此在材料164上产生高压,在材料是软的弹性体如硅酮的地方,对于这种材料沿着某些环绕的水泥被挤压进入衬管套132的内径是可能的。 2-4, the cement slurry can be seen that a great post extending in a wellbore 160 above the diverter position, thus creating high pressure on the material 164, the material is a soft elastomer such as silicone place, for this certain material is extruded along a circumferential inner diameter of the cement into the liner sleeve 132 are possible. 很明显,不希望出现这种此处的教导为了防止的情况。 Obviously, we do not want to teach here in order to prevent such a situation. 在这种情况下,这种挤压可以通过利用如讨论和说明的密封162 来防止。 In this case, the pressing can be prevented and the seal 162 described by using discussed. 密封162产生一个有效阻止将材料164挤压入衬管套132的液压密封。 162 generates a seal effective to prevent the extruded material 164 into liner sleeve 132 of the hydraulic seal. 没有预先考虑高压在哪里,尽管可以为其他的功能而采用, Did not anticipate the high pressure where, although other functions as may be employed,

但是不需要密封162来完成这种功能。 However, the seal 162 does not need to accomplish this function.

上面描述的挂钩悬桂器尾管系统被放入主井筒110内。 The above suspension hook Gui tailpipe into the main wellbore system 110 is described. 在衬管套132横穿窗口116后,该"挂钩"尾管系统自身对衬管套132定向。 After the liner sleeve 132 traverses the window 116, the "hook" on the system itself tailpipe liner sleeve 132 is oriented.

在正确的定向,分支井出口和相对于挂钩悬挂器尾管系统的设置操作之后,进行注水泥操作(见图2)。 After the correct orientation, relative to the branch well outlets and tailpipe hook setting operation of the suspension system, a cementing operation (see FIG. 2). 水泥从衬管套132的井下位置或一个由此延伸的管流出(未示出)。 Or an outflow pipe extending therefrom cement from the liner sleeve 132 downhole location (not shown). 水泥153穿过注水泥阀144流出并进入到环形空间151中。 Cement 153 flows out through cementing valve 144 and into the annular space 151. 当水泥153以计算过的数量被送入目标区域以确保水泥在主井眼中向后延伸一个需要的距离时,水泥153的泵入将停止。 When the calculated amount of cement 153 to be fed to the target area to ensure that the cement in the main wellbore extends rearwardly a desired distance, the pumped cement 153 will stop.

当水泥153到达窗口114时,其通过窗口116进入主井筒110中。 When the cement 153 reaches the window 114, which enters through the window 116 in main wellbore 110. 临时塞子114阻止水泥进入主井筒110的井下区域,那里不期望水泥的流入。 Temporary plug 114 prevents cement entering the main wellbore downhole region 110, where undesirable inflow of cement. 临时塞子114可以通过;f艮多方式形成,如形成妙、桥,加重凝胶小球,桥塞等。 Temporary plug 114 may be by; f Gen forming multi-mode, such as the formation Miao, bridge, gel beads increased, bridge plugs and the like. 如图l和2中114所简要说明的,这些中的任何一种都可以使用。 As shown in FIG. 2 and 114 l briefly described, any of these may be used. 选用何种塞子取决于包括但不限于压力,井斜角等一些因素。 What used depends plug comprising a number of factors not limited to pressure, hole angle and the like. 本领域的技术人员知道如何作出决定。 Those skilled in the art would know how to make decisions.

回到注水泥操作中,由于水泥不能够通过塞子114移动,因此迫使其沿井身上行并且因此包围连接点并继续向上达到主井筒的一个选择的位置,通常到达衬管套132顶端附近。 Back to the cementing operation, since the cement can not be moved by the plug 114, is therefore forced uphole and thus surrounds the junction and continue up to reach a position of the selected main wellbore, the liner sleeve 132 generally reaches near the top. 溢出衬管套132顶端的水泥可以用常规的清洗操作清洗掉。 Overflow liner sleeve 132 to the top of the cement may be washed by conventional cleaning operation.

在清洗操作的过程中,分支井转向器160仍然位于衬管套132内的合适位置。 During the washing operation, the diverter branch well liner sleeve 160 still in place within 132. 这与现有技术不同,因为没有材料164的释放性能,转向器160将不得不在水泥胶结前被拖出或它将在那里被粘结。 This is unlike the prior art, because no material release properties 164, diverter 160 would have to be pulled or where it is bonded before the cement bond. 随后的清洗操作将洗掉连接点处的水泥。 Subsequent cleaning operations will wash cement at the connection point. 如先前所提到的,将转向器160放在适当的位置以阻止水泥进入衬管套132的内径,但同样在清洗的过程中阻止了连接点周围水泥的清洗。 As mentioned previously, the diverter 160 will be put in place to prevent cement entering the inner diameter of liner sleeve 132, but also in the cleaning process to prevent the washed cement around the connection points.

一旦游荡的水泥被清洗掉,将允许正确定位的水泥凝固。 Once the cement was washed wandering, cement solidification will allow correct positioning. 水泥凝固后,转向器160可以在任何时侯被移动。 After the cement sets, the diverter 160 may be moved at any time. 在某些情况下,在其他井操作工程中或实际上甚至没有操作的时侯,它将被留在井下一段时间。 In some cases, well operations in other projects or indeed even no at the right time operation, it will be left in the underground for some time. 在其他情况下,在水泥凝固后它将立刻被移动以从新进入主井筒110。 In other cases, the cement solidification after it is moved to immediately re-enter the main wellbore 110. 当决定转向器160应当被从井中拖出时,利用本领域熟知的很多回收方法的任何一种将其回收。 When deciding the diverter 160 should be pulled from the well by many methods known in the art recycling any one be recovered. 由于在移动前安装了释放材料并已在上面描述过,所以与转向器160的粘结被破坏并且转向器可以很容易地^f皮取出。 Since the movement of the release material prior to installation and has been described above, the bond is broken and the diverter 160 and diverter ^ f can be easily removed skin. 一旦该转向器被取出, 一个主井筒转向器将在井筒中工作并且一个铣具或取决于临时塞子114的其他合适的工具将会工作。 Once the diverter is removed, a main bore diverter will work in a wellbore milling tool and a temporary plug or on other suitable tool 114 will work. 该铣具将会磨碎在窗口152和临时塞子114 (和如果需要的话,也会磨碎该塞子)之间的水泥并且如果塞子可以回收的话,回收工具也可以达到相同的效果。 The attritor milling tools will be between the window 152 and temporary plug 114 (and, if desired, also ground the plug) and cement plug, if it can be recycled, recovering tool may achieve the same effect.

为了分支井的进一步形成或为了完井或其他操作,对于分支井或主井筒来说通道是可以利用的。 In order to form a branch wellbore or for completion or other operations, or for a branch well bore for the main channel it can be utilized. 连接点被完全胶结是有利的。 Junction is completely cemented advantageous. 在这种情况下,该挂钩悬挂器尾管系统取得了一个TAML4级水平。 In this case, the hook hanger system made a tailpipe TAML4 class level.

虽然本发明的优选实施例已经得到了说明和描述,但是此外作出的不同的修改和替换并不背离本发明的精神和范围。 Although the preferred embodiment of the present invention have been illustrated and described, various modifications and substitutions in addition made without departing from the spirit and scope of the invention. 因此,可以理解本发明已经通过附图得到了描述并且不限于此。 Thus, to be understood that the present invention has been described by way of the drawings and is not limited thereto.

Claims (29)

1. 一种形成已注水泥的分支井连接点系统的装置,包括:套;在所述套内的预先机加工的孔;设置在所述孔上的罩;和设置在所述罩上的释放材料。 An apparatus has been well cementing branch connection point forming system, comprising: a sleeve; aperture in the jacket pre-machined; mask disposed on said aperture; and the cover is provided release material.
2. 如权利要求1所述的形成已注水泥的分支井连接点系统的装置,其特征在于,所述释放材料位于暴露于环境中的在所述套的外部的所述軍的至少一部分上。 2. forming at least a portion of the apparatus of claim 1, the well cement branch connection point injection system is characterized in that the release of the military material exposed to the environment located in the outside of the sleeve .
3. 如权利要求1所述的形成已注水泥的分支井连接点系统的装置,其特征在于,所述释放材料与所述罩形成弱键。 Forming the device of claim 1 cement branch well has a connection point injection system, wherein the release material and the cover form a weak bond.
4. 如权利要求3所述的形成已注水泥的分支井连接点系统的装置,其特征在于,所述材料是硅酮。 4. The apparatus connection point branch wellbore cementing system is formed according to claim 3, wherein said material is a silicone.
5. 如权利要求3所述的形成已注水泥的分支井连接点系统的装置,其特征在于,所述材料是一种弹性体。 5. The device of system connection point of a branch wellbore cementing has been formed according to claim 3, wherein said material is an elastomer.
6. 如权利要求3所述的形成已注水泥的分支井连接点系统的装置,其特征在于,所述材料是空气凝固树脂。 3 is formed according to claim 6. The apparatus as claimed in well cement branch connection point injection system is characterized in that said material is an air cured resin.
7. 如权利要求3所述的形成已注水泥的分支井连接点系统的装置,其特征在于,所述材料是聚氨酯。 7. The apparatus connection point branch wellbore cementing system is formed according to claim 3, wherein said material is polyurethane.
8. 如权利要求1所述的形成已注水泥的分支井连接点系统的装置,其特征在于,所述释放材料还形成所述套和所述軍之间的密封。 8. The forming apparatus of claim 1 has been connected to the branch point well cementing system as claimed in claim, wherein said release material further forms a seal between the sleeve and the military.
9. 如权利要求1所述的形成已注水泥的分支井连接点系统的装置,其特征在于,所述套和所述罩之间还限定一具有液压密封的横断面。 9. The forming apparatus of claim 1 has been connected to the branch point well cementing system as claimed in claim, wherein a cross section further defines a hydraulic seal between the sleeve and the cover.
10. 如权利要求9所述的形成已注水泥的分支井连接点系统的装置,其特征在于,所述液压密封包括在所述套的内部尺寸上的密封孔和在所述罩的外部尺寸上的密封。 10. The forming device of claim 9, said cement system branch connection point is well injection, wherein said hydraulic seal comprises a seal bore on the interior dimension of the sleeve and the outer dimensions of the cover seal on.
11. 如权利要求10所述的形成已注水泥的分支井连接点系统的装置,其特征在于,所述密封为o形环。 11. The forming device 10 has a connection point branch wellbore cementing system as claimed in claim, wherein said seal is an o-ring.
12. 如权利要求1所述的形成已注水泥的分支井连接点系统的装置,其特征在于,所述罩为管套。 12. The forming device of claim 1 has been connected to the branch point well cementing system as claimed in claim, wherein said cover is a sleeve.
13. 如权利要求1所述的形成已注水泥的分支井连接点系统的装置,其特征在于,所述罩是分支井转向器。 13. The forming device of claim 1 has been connected to the branch point well cementing system as claimed in claim, wherein said cover is a diverter branch wellbore.
14. 如权利要求1所述的形成已注水泥的分支井连接点系统的装置,其特征在于,所述套是衬管套。 14. The forming device of claim 1 has been connected to the branch point well cementing system as claimed in claim, wherein said sleeve is a liner sleeve.
15. 如权利要求1所述的形成已注水泥的分支井连接点系统的装置,其特征在于,所述释放材料位于暴露于环境中的在所述套的外部的所述罩的所有部分上。 15. The form of claim 1 all portions of the cover material is exposed to the environment located in said outer sleeve device of claim cement branch well has a connection point injection system, characterized in that the release .
16. —种构造井筒的方法,包括; 在分支井连接点系统中安装分支井转向器; 向所述分支井转向器施加释放材料; 在井眼中运行前述元件;在分支井出射窗内部署所述分支井连接点系统;和向所述分支井连接点系统施加可硬化试剂。 16. - kind of construction wellbore, comprising; mounted in the branch wellbore junction diverter system branch well; applying a release material to the diverter branch wellbore; running foregoing elements in a borehole; in the branch wellbore exit window deployment said branch wellbore junction system; and applying a hardenable agent to the branch wellbore junction system.
17. 如权利要求16所述的构造井筒的方法,其特征在于,所述施加是注水泥。 17. The method according to claim 16 configured wellbore, wherein said applying is cementing.
18. 如权利要求17所述的构造井筒的方法,其特征在于,所述注水泥包括清洗。 18. The method according to claim 17 configured wellbore, wherein said cementing includes cleaning.
19. 如权利要求16所述的构造井筒的方法,其特征在于,所述方法还包括允许所述水泥凝固。 19. The method according to claim 16 configured wellbore, wherein the method further comprises allowing said cement to set.
20. 如权利要求16所述的构造井筒的方法,其特征在于,所述方法还包括提拉所述转向器。 20. The method according to claim 16 configured wellbore, wherein the method further comprises pulling said diverter.
21. 如权利要求20所述的构造井筒的方法,其特征在于,所述转向器在水泥凝固后被提拉。 21. The method of construction of a wellbore according to claim 20, wherein said diverter pulled in after the cement sets.
22. 如权利要求20所述的构造井筒的方法,其特征在于,所述提拉包括通过克服所述释放材料的粘结性将所述转向器从所述水泥分离。 22. The method according to claim 20 configured wellbore, wherein said pull release material comprising a cementitious by overcoming the separating said diverter from said cement.
23. —种构造井筒的方法,包括:制备具有预先机加工窗口的套、设置成用于封闭所述窗口的罩和一种用于在井眼中起作用的位于通过所述窗口暴露于环境中的所述罩的至少一部分上的释放材料;在井眼中安装所述套;和围绕所述套在所述井眼的环形空间中施加可硬化试剂。 23. - kind of construction method of a wellbore, comprising: preparing a set of pre-machined window is provided to the cover for closing the window and for use in a wellbore through said window function is located is exposed to the environment release material on at least a portion of the cover; mounting the sleeve in the wellbore; and a sleeve surrounding the hardenable agent is applied in the annular space of the wellbore.
24. 如权利要求23所述的构造井筒的方法,其特征在于,所述方法还包括在施加可硬化试剂后除去所述罩。 24. The method of construction of a wellbore as claimed in claim 23, wherein said method further comprises removing the hardenable agent is applied after the cover.
25. 如权利要求23所述的构造井筒的方法,其特征在于,所述方法还包括通过所述预先机加工窗口钻所述可硬化试剂。 25. The method according to claim 23 configured wellbore, wherein the method further comprises the pre-machined window by drilling the hardenable agent.
26. 如权利要求23所述的构造井筒的方法,其特征在于,所迷释放材料覆盖通过所述窗口暴露于环境中的所述軍的所述部分的全部。 26. The method of construction of a wellbore as claimed in claim 23, wherein the release material covers all of the fans through the window exposed to the environment of the portion of the Army.
27. 如权利要求23所述的构造井筒的方法,其特征在于,所述可硬化试剂是水泥。 27. The method according to claim 23 configured wellbore, wherein the hardenable agent is cement.
28. 如权利要求23所述的构造井筒的方法,其特征在于,所述安装包括定位和定向所述套。 28. The method according to claim 23 of the wellbore configuration, wherein the mounting comprises a positioning and orientation of the sleeve.
29. 如权利要求28所述的构造井筒的方法,其特征在于,所述定位和定向是通过在所述井眼的窗口中下放挂钩悬桂器尾管系统中的挂钩完成的。 29. The method according to claim 28 configured wellbore, characterized in that the positioning and orientation of the hook in the window through decentralization of the wellbore hanging hook Gui tailpipe system is completed.
CN 200380103060 2002-11-11 2003-11-07 A method and apparatus for creating a cemented lateral junction system CN100523428C (en)

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RU2005118404A (en) 2006-12-20
AU2003291388A1 (en) 2004-06-03
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RU2319826C2 (en) 2008-03-20
CA2636835C (en) 2010-02-09
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CA2504247C (en) 2009-03-10
WO2004044375A1 (en) 2004-05-27
CN1711407A (en) 2005-12-21
NO20052353L (en) 2005-06-10
CA2504247A1 (en) 2004-05-27
CA2636835A1 (en) 2004-05-27
AU2003291388B2 (en) 2009-02-19

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