CN104533315B - Full-hydraulic drive means and the tubular string pressurizing propulsion method - Google Patents

Full-hydraulic drive means and the tubular string pressurizing propulsion method Download PDF

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CN104533315B
CN104533315B CN201410775595.8A CN201410775595A CN104533315B CN 104533315 B CN104533315 B CN 104533315B CN 201410775595 A CN201410775595 A CN 201410775595A CN 104533315 B CN104533315 B CN 104533315B
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end
anchor
piston
advancing
hydraulic
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CN201410775595.8A
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CN104533315A (en
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侯福祥
马汝涛
彭嵩
徐丙贵
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中国石油天然气集团公司
中国石油集团钻井工程技术研究院
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Abstract

本发明的一种全液压驱动井下管柱的加压装置及其推进方法,加压装置包括依次连接的第二作动机构、液控中心和第一作动机构;第一、第二作动机构均包括锚固组件、液压缸和推进活塞,推进活塞固定中心管;推进活塞在液压缸中滑动,锚固组件一端滑动密封地置于液压缸内且其外露部分能沿径向张缩;在锚固组件和推进活塞之间形成锚固端环形空腔,在推进活塞和推进端端盖之间形成推进端环形空腔;第二作动机构的锚固端环形空腔和推进端环形空腔分别与第一作动机构的锚固端环形空腔和推进端环形空腔连接;通过锚固端环形空腔的进油和泄压分别依次控制第一、第二作动机构各自的锚固组件张缩;液控中心驱动推进活塞向推进端端盖一侧移动,使管柱持续下入。 One inventive apparatus is fully hydraulic pressurizing and advancing the tubular string method, the pressurizing means includes a second actuating means connected in sequence and the first pilot central actuating means; first and second actuating anchor assembly includes a mechanism, the hydraulic cylinder and the boost piston, the boost piston fixed tube; boost piston slidable in the cylinder, one end of the anchor assembly slidably sealingly disposed hydraulic cylinder and which can be radially exposed portion of expandable; anchor component and promote the formation of an anchor end of the annular cavity between the piston, an annular cavity is formed between the advancing end and advance the boost piston end cap; anchor end of the second actuating means and advancing the annular cavity and the second end of the annular cavity, respectively, end of the annular cavity and advancing the anchoring end of the annular chamber is connected to an actuating mechanism; an anchor end of the annular cavity, respectively, and the relief oil feed sequentially controlling the first and second actuating means of each of expandable anchor assembly; pilot advancing the end cap central drive piston moves to its advance end of the string into the continuously.

Description

全液压驱动井下管柱的加压装置及其推进方法 Full-hydraulic drive means and the tubular string pressurizing propulsion method

技术领域 FIELD

[0001] 本发明涉及油气钻采技术领域,特别涉及一种能为井下管柱施加推力的全液压的加压工具,以及为井下管柱提供推力,实现加载钻压,辅助下入管柱的方法。 [0001] The present invention relates to the field of oil and gas drilling, in particular, it relates to full hydraulic tool capable of applying a pressing force to the tubular string, the tubular string and to provide thrust, WOB loading implement, the method for assisting running string .

背景技术 Background technique

[0002] 随着油气资源勘探开发向着更深、更复杂的地层拓展,水平井、大位移井等特殊井型的应用越来越广泛。 [0002] As the oil and gas exploration and development towards a deeper, more complex special type well formation development, horizontal well, extended reach wells and other applications more widely. 在处于开发后期的老油田中,套管开窗侧钻或裸眼侧钻水平井是挖潜产能的重要手段。 In the late-old oil field, the drilling or casing side openhole horizontal sidetracking is an important means of tapping the potential capacity.

[0003] 钻井过程中,钻头上的钻压一般由钻柱的重量加载。 [0003] the drilling process, generally WOB on the drill bit by the weight loading of the drill string. 但在水平井、大位移井中,由于大部分钻柱与井壁贴合,产生较大的摩擦阻力,妨碍了钻压的有效传递,可能导致机械钻速大幅降低,钻井成本随之提高;严重时,甚至无法钻达设计深度。 However, horizontal wells, extended reach wells, since most of the drill string and the borehole wall bonded to produce large frictional resistance, preventing efficient transfer of WOB, ROP may lead to significantly reduce drilling costs will increase; severe when, not even drilling depth of the design. 另外,连续管钻修井、钻井是一项有广阔应用前景的新兴技术,具有常规钻井不具备的多项优点,同时也面临着一系列新的技术难题,其中钻压的加载和连续管的下入是当前面临的主要问题。 In addition, coiled tubing drilling and workover, drilling there is a broad prospect of emerging technologies, has a number of advantages not available in conventional drilling, while also facing a series of new technical challenges, which WOB loading and continuous tube under the main problems currently facing.

[0004] 连续管由于受刚度的限制和井壁摩擦阻力的影响,在长距离下入时容易在井下形成弹簧状弯曲、缠绕,进而形成自锁,从而无法下入到目的层。 [0004] The continuous tube wall and limitations due to the influence of friction rigidity, easily formed at a long distance fashionable downhole spring-like bent, twisted, thus forming self-locking, and thus can not run into the destination floor. 连续管钻井时无法依靠自身重量和自身强度提供有效的钻压,需要提供单独的钻压设备。 Relying on its own weight and can not itself provide effective strength when coiled tubing drilling WOB, the WOB requires a separate device. 通常使用水力加压器进行连续管钻井的钻压加载,但效果不够理想,难以满足复杂现场工况的需求。 Hydraulic pressure is generally used continuous drilling WOB loading tube, but the effect is not ideal, it is difficult to meet the demand of the complex field conditions.

发明内容 SUMMARY

[0005] 为解决上述的技术问题,本发明提出一种全液压驱动井下管柱的加压装置来实现钻压的加载和连续管的持续下入,本发明还提出一种全液压驱动井下管柱的推进方法,所述方法为所述加压装置的工作步骤,该方法为所述加压装置上连接的中心管加载持续的钻压。 [0005] In order to solve the above technical problem, the present invention provides a fully hydraulically driven pressure means to achieve downhole drill string pressure and continuous loading into the coiled tubing, the present invention also provides a fully hydraulic downhole tubulars advancing column method, the method is a step of working said pressurized means, which connect the center of the tube loading apparatus of the continuous pressurization WOB.

[0006] 本发明的一种全液压驱动井下管柱的加压装置,包括依次连接的第二作动机构、 液控中心和第一作动机构; [0006] A hydraulic drive according to the present invention, the entire tubular string pressing means comprising second actuating means connected in sequence and the first pilot center actuating means;

[0007] 所述第一作动机构和所述第二作动机构均包括依次设置的锚固组件、液压缸和推进活塞,所述推进活塞固定连接一中心管,所述中心管贯穿所述锚固组件和所述液压缸;所述液压缸的两端分别通过锚固端端盖和推进端端盖密封,所述推进活塞能在所述液压缸的推进活塞行程腔中滑动,所述锚固组件的一端滑动密封地置于所述液压缸内,所述锚固组件外露于所述液压缸的部分能沿径向扩张或收缩; [0007] The first actuating mechanism and said second actuating means comprises an anchor assembly arranged in sequence, a hydraulic cylinder and advancing a piston, the boost piston is fixedly connected to a central tube, the central tube through the anchor assembly and the hydraulic cylinder; said hydraulic cylinder ends respectively anchored end cap and end cap sealing advance, advancing the piston in the hydraulic cylinder can advance the sliding chamber of the piston stroke, the anchor assembly the end of the sliding sealingly disposed hydraulic cylinder, said anchor assembly is exposed to the cylinder portion can be radially expanded or contracted;

[0008] 所述中心管的外壁与所述液压缸的内壁的环形间隙在所述锚固组件和所述推进活塞之间形成锚固端环形空腔,所述中心管的外壁与所述液压缸的内壁的环形间隙在所述推进活塞和所述推进端端盖之间形成推进端环形空腔;所述第二作动机构的锚固端环形空腔和推进端环形空腔分别通过所述液控中心的管线与所述第一作动机构中对应的锚固端环形空腔和推进端环形空腔连接; [0008] The outer wall of the central tube and the annular inner wall of the cylinder gap and said anchoring assembly anchoring said propulsion end of the annular cavity is formed between the piston, and the outer wall of the central tube of the hydraulic cylinder advancing the inner wall of the annular gap formed between the end of the annular cavity and advancing the propulsion piston end cap; end of the annular cavity and the anchor end of the annular cavity of the second propulsion means are actuated by said pilot the center line of the first actuating mechanism corresponding anchor end annular cavity and advancing the connection end of the annular cavity;

[0009] 通过所述锚固端环形空腔的进油所述液控中心依次控制所述第一作动机构的锚固组件和所述第二作动机构的锚固组件扩张,通过所述锚固鈿环形空胫的泄压所还液拴中心依次控制所述第一作动机构的锚固组件和所述第二作动机构的锚固组件收缩;通过所3 液控中心向所述锚固端环形空腔内进油,驱动所述推进活塞和所述中心管朝向所述推进端端盖一侧移动。 [0009] The anchor assembly as recited in turn controls the first actuation mechanism by the anchoring of the oil into the annular cavity of the hydraulic control center end and the second expandable anchor assembly actuating mechanism by said annular anchoring tin air relief tibia was also tied to the center of the anchor assembly in turn controls the first actuating mechanism and the second anchor assembly actuating mechanism shrinkage; annular cavity 3 through the hydraulic control center to the end of the anchor into the oil, the drive piston and advancing the pipe toward the advancing side end of the mobile cap. _ 、、 、 _ ,,,

[0010] 作为一种可实施的方式,所述液控中心包括第一行程阀、第二行程阀、主换向阀和顺序阀;所述第一行程阀与所述第一作动机构的推进端端盖连接,所述第二行程阀与所述第二作动机构的推进端端盖连接; [0010] As an embodiment of the embodiment, the center pilot valve comprises a first stroke, the second stroke valve, the main valve and the sequencing valve; stroke of the first valve and the first actuating mechanism advancing the end cap is connected to the second end of advancing stroke valve and the second actuating mechanism is connected to the end cap;

[0011] 所述主换向阀通过主进油管路与所述液控中心的进油口连接,所述主换向阀分别通过第一进油管路、第二进油管路与所述第一作动机构的锚固端环形空腔、所述第二作动机构的锚固端环形空腔连接;所述顺序阀与所述主进油管路连接,所述顺序阀通过所述主进油管路的压强信号控制所述主换向阀与所述液控中心的回油口之间的导通;通过所述推进活塞与所述推进端端盖的接触所述液控中心控制所述第一行程阀或所述第二行程阀的触发。 [0011] The main valve is connected to the main inlet line into the pilot port through the center of the main valve through the first inlet line, a second in-line with the first actuation end of the annular cavity anchoring means, said anchoring end of the annular cavity is connected to the second actuating means; said sequencing valve in-line with the main connection, the sequence valve through said main inlet line of conduction between the primary pressure signal for controlling the pilot valve and the center of the oil return port; by advancing the end cap and the propulsion pilot contacts the center of the first piston stroke control the second stroke trigger valve or valves.

[0012] 进一步地,所述锚固组件包括滑动套装在所述中心管上的锚固臂支撑环、能沿径向扩张或收缩的至少三根锚固臂、滑块和锚固活塞;所述锚固臂支撑环位于所述锚固组件外露于所述液压缸的部分的端部,所述锚固臂的一端固定到所述锚固臂支撑环上,其另一端固定到所述铺固纟而纟而盖上; [0012] Further, the anchor assembly comprises an anchor arm support ring slidably set on the central tube, can be at least three anchoring arms along the radial expansion or contraction of the piston slider and an anchor; the anchor arm support ring the anchor assembly is located in the exposed end portion of the cylinder, one end of the anchoring arm is secured to the anchor arm support ring, and the other end is fixed to the cover and spread the solid Si and Si;

[0013] 所述锚固活塞套装在所述中心管上,所述锚固活塞的一端滑动密封地置于所述液压缸内;所述锚固臂沿所述中心管的圆周均匀分布,所述滑块位于所述锚固臂包围的空腔内,所述滑块套装在所述锚固活塞上;通过所述锚固端环形空腔的进油推动所述铺固活塞朝向所述锚固端端盖运动,所述锚固活塞推动所述滑块,所述滑块的外周挤压所述锚固臂沿径向扩张。 [0013] The anchor piston fitted over the central tube, the anchor end of the piston is sealingly slidably disposed in the hydraulic cylinder; said anchoring arms circumferentially distributed uniformly along the central tube, the slide located in the cavity surrounding the anchoring arms, the slide piston is sleeved on the anchor; end of the annular cavity through the anchor pushes the oil into the piston toward laying solid end cap moving the anchor, the anchoring said piston pushes said slider, the slider pressing the outer periphery of the anchor arms expands radially.

[0014] 进一步地,所述锚固活塞包括套筒部和固定套装在所述套筒部一端的活塞部,所述活塞部滑动密封地置于所述液压缸内;所述套筒部的外壁上设置台阶,所述滑块能沿所述套筒部的外壁滑动直至与所述台阶的水平面抵靠。 [0014] Preferably, the piston comprises a sleeve anchor portion and the fixing portion of the piston set an end of the sleeve portion, said piston portion slidably sealingly disposed in said hydraulic cylinder; the outer wall of the sleeve portion the setting step, can slide along the outer wall of the sleeve portion slides up the horizontal plane against the step.

[0015] 作为一种可实施的方式,所述锚固活塞上套装弹簧,所述弹簧的两端分别抵靠在所述活塞部和所述铺固纟而^5盖的内侧。 [0015] As an embodiment of the embodiment, the anchor set on the spring piston, the spring ends abut against the piston portion and the plated solid Si ^ 5 and the inside of the cover.

[0016] 作为一种可实施的方式,所述滑块的外壁上设置至少一个斜面体,所述斜面体包括沿所述滑块的圆周均匀分布的多个斜面,所述斜面朝向所述锚固臂支撑环的一端向所述滑块的中心轴倾斜;所述斜面朝向所述锚固臂支撑环的运动挤压所述锚固臂,所述锚固臂沿径向扩张并与外界的井壁锚固。 [0016] As an embodiment of the embodiment, the outer wall is provided at least one inclined surface of the slider body, said body comprising a plurality of inclined surfaces inclined surface of the slider along the circumference of evenly distributed, the ramp toward the anchor end of the arm of the support ring is inclined toward the center axis of the slider; the ramp toward the anchor arm support ring pressing movement of the anchoring arms, the arms radially expand and anchor the anchoring outside wall.

[0017] 进一步地,所述斜面体的数量为至少一个,所述斜面体上具有三个所述斜面,所述斜面沿所述滑块的圆周的分布位置与所述锚固臂沿所述中心管的圆周的分布位置相对应。 Distribution position [0017] Further, the number of said at least one ramp member having the inclined surface on the three bevel, said bevel along the circumference of the slider and along the center of the anchoring arms distribution of circumferential position corresponding to the tube.

[0018] 作为一种可实施的方式,所述锚固臂上设置滚轮,所述滚轮能在所述斜面上滚动。 [0018] As an embodiment of the embodiment, the anchor arms disposed rollers which can roll on the ramp.

[0019] 进一步地,所述中心管包括由所述第二作动机构的推进活塞、所述液控中心和所述第一作动机构的推进活塞分隔形成的第一段、第二段、第三段和第四段; [0019] Further, the central tube by the advancing comprises advancing the second piston actuating mechanism, the center and the first pilot for a first section of the piston means movable partition is formed, a second segment, third and fourth paragraph;

[0020] 所述推进活塞的两端分别设置第一凹槽和第二凹槽,所述第一凹槽朝向所述锚固端端盖,所述第二凹槽朝向所述推进端端盖;所述第二作动机构的第一凹槽和第二凹槽内分别固定连接所述第一段和所述第二段,所述第一作动机构的第一凹槽和第二凹槽内分别固定连接所述第三段和所述第四段; [0020] The propulsion of the piston are provided at both ends of the first and second recesses, said first recess toward said anchor end cap, the second groove facing the propulsion end cap; the first and second grooves of the second actuating means are fixedly connected to the first and second segments, said first and second grooves of the first actuating mechanism are fixedly connected within the third and the fourth segment;

[0021] 所述第一凹槽的槽底与所述第二凹槽的槽底之间设置贯通的管路通道,一锚固端液压通道从所述第一凹槽的槽底贯通到所述推进活塞的第一凹槽所在端的端面,一推进端液压通道从所述第二凹槽的槽底贯通到所述推进活塞的第二凹槽所在端的端面; [0021] provided through the passage between the bottom line of the first groove and the second groove bottom, and a hydraulic channel through anchor end from the groove bottom of the first groove to the advancing the first end of the groove where the piston end surface, a propulsion end hydraulic passage penetrating from said bottom of said second recess to a second recess of the piston where the advancing end of the end face;

[0022] 所述第二作动机构的锚固端液压通道在所述第一凹槽的槽底上的一端通过第一管线与所述第一作动机构的锚固端液压通道在所述第一凹槽的槽底上的一端连通;所述第二作动机构的推进端液压通道在所述第二凹槽的槽底上的一端通过第二管线与所述第一作动机构的推进端液压通道在所述第二凹槽的槽底上的一端连通;所述第一管线和所述第二管线均置于所述管路通道和所述中心管内。 [0022] The anchor end of the hydraulic actuator means is a second passage one end in the bottom of the first groove through the first end of the anchor line and the first hydraulic passage of the actuating mechanism in the first the bottom end of the communicating groove; promote passage of the second end of the hydraulic actuator means at one end on the bottom of the second recess by advancing the first end of the second line with the actuating mechanism hydraulic passage communicating at one end on the bottom of the second recess; the first line and the second line are placed within the passage and the conduit pipe.

[0023] 作为一种可实施的方式,在所述第二段外露于所述第二作动机构的液压缸的部分的外壁上或所述第二作动机构的液压缸的内壁上设置限位件,所述限位件限定所述第二作动机构的推进活塞在相应的所述液压缸内移动的位置。 An outer wall portion of the [0023] As an embodiment of the embodiment, the second section is exposed to the second hydraulic cylinder mechanism or actuator is provided the limits on the inner wall of the cylinder of the second actuating mechanism bit member, said stop member defining a boost piston movable in the cylinder corresponding to the second position of the hydraulic actuating mechanism. v、 v,

[0024] 本发明的一种全液压驱动井下管柱的推进方法,采用所述的全液压驱动井下管柱加压装置,其工作过程如下: [0024] The method of the present invention promote full hydraulic drive tubular string using the tubular string fully hydraulic pressurizing device, which works as follows:

[0025] Sl〇,所述全液压驱动井下管柱加压装置入井前,向第一作动机构的推进端环形空腔和第二作动机构的推进端环形空腔充入液压油;将所述全液压驱动井下管柱加压装置和中心管一起下入到井下; [0025] Sl〇, the full hydraulic drive means before pressing the tubular string into the well, to promote the advancing side end of the annular cavity of the first actuating mechanism and the second actuating mechanism of the cavities are filled into the annular hydraulic fluid; and the tubular string is fully hydraulic pressurizing device and into the pipe with downhole;

[0026] S20,液控中心控制液压油进入所述第一作动机构的锚固端环形空腔,所述第一作动机构的锚固组件张紧锚固,所述第一作动机构的锚固端环形空腔的压强达到限定值、, 述第一作动机构的锚固端环形空腔推动对应的推进活塞带动其上固定连接的所述中心管朝向所述第一作动机构的推进端端盖运动; 一 [0026] S20, the pilot hydraulic oil into the center of the control cavity of the first end of the annular anchoring actuating means, said first anchor assembly for anchoring a tensioning mechanism, the first end of the anchor actuation mechanism defining the annular cavity pressure reaches the advancing end of the value ,, pushing the boost piston drive which is fixedly connected to said central pipe towards said first actuating means corresponding to said cap end of the annular cavity of the first anchoring actuating means sports; a

[0027] 所述第一作动机构的推进端环形空腔中的液压油通过管线流入所述第二作动机构的推进端环形空腔,所述第二作动机构的液压缸相对于所述中心管朝向所述第一作动机构运动; 、 Advancing end of the annular cylinder chamber with an end propulsion annular cavity [0027] of the first actuator means in said second hydraulic oil flows through line actuation mechanism, said second actuating means for the said central pipe towards said first actuating means movement;,

[0028] S3〇,所述液控中心控制液压油进入所述第二作动机构的锚固端环形空腔,所述第二作动机构的锚固组件张紧锚固,所述第二作动机构的锚固端环形空腔的压强达到限定值;同时,所述第-作动机构的锚固端环形空腔卸压,所述第一作动机构的锚固组件收缩复位;所述第二作动机构的锚固端环形空腔推动对应的推进活塞带动其上固定连接的所述中心管朝向所述第二作动机构的推进端端盖运动; 、、^ [0028] S3〇, the hydraulic control center to control the hydraulic oil into the annular cavity of the second end of the anchoring actuating means, the second anchor assembly for anchoring a tensioning mechanism, said second actuating means the anchoring end of the annular cavity pressure reaches a limit value; Meanwhile, the second - the anchoring mechanism actuating end of the annular pressure relief cavity, the first anchor assembly actuating mechanism resetting contraction; the second actuating mechanism the anchoring end of the annular cavity end pushing the boost piston propulsion drive which is fixedly connected to the central tube towards the second actuating mechanism moving the corresponding end cap; ,, ^

[0029] S40,依次重复上述的S2〇和S3〇,所述中心管持续朝向所述推进端端盖推进。 [0029] S40, and sequentially repeating the above-described S2〇 S3〇, the central tube towards the continuously advancing end cap propulsion. _)]进-雜,臟S对,臓第-作祕__端环赃腔的麵翻所述、f控中心的顺序阀设定的限定值,所述顺序阀导通;所述第述第-作动机构的推进端端盖接触,触发所述液控中心的与所述第一^= 盖连接的第-雜_,臟雜中捕主换_换向,所駐换向酿纖压働流向,所:n3〇中,所述第二作动机构的锚固端环形空腔的进端端盖接触,触发所述液控中心的与所述第二作动机构的推进顺栖皿接的第阀,所述主换向阀换向,所述顺序阀复位。 _)] In - heteroaryl, the S dirty, Zang - of the end ring for __ secret dirty sides over the cavity, the valve defining a value of the order of f set control center, the sequence valve is turned on; the first said first - advancing an end cap in contact with the actuator mechanism, triggering the hydraulic control center to the first cover of the connection ^ = - _ heteroaryl, heteroaryl dirty changing the main catch _ commutation, the commutation stuffed in Dong fiber flow pressure, are: n3〇, the inlet end of the annular cavity end anchoring second actuating mechanism end cap in contact, triggering the center of the pilot and the second actuating mechanism habitat propulsion cis a first valve connected to the dish, the main reversing valve, the valve is reset sequence.

[0032] 本发明相比于现有技术的有益效果在于:全液压驱动井下管柱的加压装置采用全液压驱动的方式,对中心管施加轴向压力,持续地在井底推进中心管。 [0032] The present invention compared to the prior art advantageous effect in that: the tubular string fully hydraulic pressure device, a fully hydraulic manner, axial pressure is applied to the central tube, the central tube to advance continuously at the bottom. 在钻井时有效地提供钻压加载,将连续管等其他井下管柱的辅助下入。 When drilling effective to provide WOB loading, with the aid of the continuous tube into the other tubular string. 全液压驱动井下管柱的加压装置能将中心管下入较长距离,中心管持续推进直至到达目的层,解决了连续管或其他井下管柱作业时下入困难的问题。 Full hydraulic drive means capable of pressing the tubular string down into the long distance pipe, tube continuously advanced until the central layer to the object, to solve the problem of a continuous tube or other tubular string into the difficult job nowadays. 使用全液压驱动井下管柱的推进方法为上述的加压装置有效地加压, 保证了钻井的效率,提高了油田产能。 The tubular string using a full hydraulic drive propulsion method effectively the pressure device pressure, to ensure the efficiency of the drilling, increased oil production.

附图说明 BRIEF DESCRIPTION

[0033] 图1为本发明的全液压驱动井下管柱的加压装置在初始状态的结构示意图; Full hydraulic [0033] Figure 1 is a schematic view of the structure of the invention the tubular string drive means in an initial pressurized state;

[0034] 图2为第一作动机构在初始状态的主视示意图; [0034] FIG. 2 is a schematic view of a first actuating mechanism in the initial state of the master;

[0035] 图3为第一作动机构中液压缸的主视剖面示意图; [0035] FIG. 3 is a cross-sectional view of the main actuating means in a first cylinder of view;

[0036] 图4为本发明的全液压驱动井下管柱的加压装置的液控中心在初始状态的原理示意图; Full hydraulic [0036] FIG. 4 of the present invention, the pressurizing means driving a tubular string in a schematic view of the principle of the central pilot initial state;

[0037] 图5为第一作动机构中锚固臂的主视示意图; [0037] FIG. 5 is a front view showing a first actuating mechanism anchoring arm;

[0038] 图6为第一作动机构中锚固臂的俯视示意图; [0038] FIG. 6 is a first schematic top view of the actuator mechanism of the anchoring arm;

[0039] 图7为第一作动机构中滑块的主视示意图; [0039] FIG. 7 is a schematic front view of a first actuator slider mechanism;

[0040] 图8为第一作动机构中滑块的左视示意图; [0040] FIG. 8 is a schematic left side view of the first actuator mechanism of the slider;

[0041] 图9为第一作动机构中锚固活塞的主视示意图; [0041] FIG. 9 is a schematic front view of the piston of the first actuating anchoring means;

[0042] 图1〇为第一作动机构中推进活塞的主视剖面示意图; [0042] FIG 1〇 a first actuating mechanism to promote a schematic cross-sectional view of the main piston;

[0043] 图11为第一作动机构中推进活塞的左视示意图。 [0043] FIG. 11 is a schematic left side view of the piston of the first actuator means in advance.

[0044] 附图标记: [0044] reference numerals:

[0045] 1-第一作动机构; [0045] 1- a first actuating mechanism;

[0046] 11-中心管;112-第一段;114-第二段;116-第三段;118-第四段; [0046] 11- pipe; 112- first segment; 114- second segment; 116- third segment; 118- fourth segment;

[0047] 12-锚固臂支撑环;I3-锚固臂;131-锚固臂本体;132_销轴;133-滚轮; [0047] 12- anchoring arms of the support ring; I3- anchoring arms; 131- anchor arm body; 132_ pin; 133- roller;

[0048] 14-滑块;142-斜面;15_锚固端端盖; [0048] 14- slider; 142- ramp; 15_ anchor end cap;

[0049] 16-液压缸; [0049] 16- cylinder;

[0050] 161-锚固端环形空腔;162-锚固活塞行程腔; [0050] 161- anchoring end of the annular cavity; 162 anchoring the piston stroke chamber;

[0051] 163-推进端环形空腔;164-推进活塞行程腔; [0051] 163- advancing end of the annular cavity; 164- advance stroke of the piston chamber;

[0052] 17-弹簧;18-锚固活塞;1幻-套筒部;182_台阶;I83-活塞部; [0052] 17- spring; anchoring the piston 18; Magic 1 - sleeve portion; 182_ step; I83- piston portion;

[0053] 19-推进活塞; [0053] 19- boost piston;

[0054] 191-第一凹槽;192-销固端液压通道;I93-第二凹槽; [0054] 191- a first recess; 192- pinned end hydraulic passage; I93- second groove;

[0055] 194-推进端液压通道;196-管路通道; [0055] 194- advance side hydraulic passage; 196- conduit channel;

[0056] 110-推进端端盖; [0056] 110- advancing end cap;

[0057] 2 -液控中心; [0057] 2 - hydraulic control center;

[0058] 21-第二行程阀;22-第一行程阀;23-主换向阀;24-顺序阀; [0058] 21 second stroke valve; 22- a first valve stroke; 23- main valve; 24- sequence valve;

[0059] 3-第二作动机构。 [0059] 3- second actuating mechanism.

具体实施方式_ Detailed ways_

[0060]以下结合附图,对本发明上述的和另外的技术特征和优点进行清楚、完整地描述, 显然,所描述的实施例仅仅是本发明的部分实施例,而不是全部实施例。 [0060] conjunction with the drawings, the present invention and further features and advantages described above will be clearly and completely described, obviously, the described embodiments are merely part of embodiments of the present invention rather than all embodiments.

[0061]请参阅图1所示,本发明的一种全液压驱动井下管柱的加压装置,包括依次连接的第二作动机构3、液控中心2和第一作动机构1。 [0061] Please refer to FIG. 1 A fully hydraulic drive according to the present invention the pressurizing means of the tubular string including a second actuating mechanism 3 sequentially connected, the control center 2 and the first fluid actuating means 1.

[0062] 请参阅图2所示,第一作动机构1和第二作动机构3均包括依次设置的锚固组件、液压缸16和推进活塞I9;推进活塞19固定连接一中心管11,中心管11贯穿锚固组件和液压缸I6,本实施例中,中心管11伸出锚固组件和液压缸16。 [0062] Please refer to FIG. 2, a first actuating mechanism 1 and the second actuating mechanism 3 includes an anchor assembly arranged in sequence, the cylinder 16 and the boost piston I9; boost piston 19 is fixedly connected to a pipe 11, center anchor assembly 11 through the tube and the hydraulic cylinders I6, in this embodiment, center tube 11 extending anchor assembly 16 and the hydraulic cylinder. 液压缸16的两端分别通过锚固端端盖15和推进端端盖110密封。 Both ends of the hydraulic cylinder 16 through the anchor end cap 15, respectively, and advancing the end cap 110 seals. 请结合图3所示,推进活塞19能在液压缸16的推进活塞行程腔164 中滑动,锚固组件的一端滑动密封地置于液压缸16内,在锚固活塞行程腔162中滑动;锚固组件外露于液压缸16的部分能沿径向扩张或收缩。 Please conjunction with FIG. 3, advancing piston 19 in the cylinder can advance stroke of the piston 16 sliding in the chamber 164, one end of the anchor seal assembly slidably disposed within the cylinder 16, the slide anchor in the cavity 162 of the piston stroke; anchor assembly exposed in the cylinder portion 16 can be radially expanded or contracted.

[0063] 如图2所示,中心管11的外壁与液压缸16的内壁之间具有的环形间隙,环形间隙在锚固组件和推进活塞19之间围成锚固端环形空腔161,环形间隙在推进活塞19和推进端端盖110之间围成推进端环形空腔163。 [0063] As shown, having a central tube 2 between an inner wall and an outer wall 16 of the cylinder 11 of the annular gap, the annular gap in the anchor assembly and the boost piston enclosed annular space 161 between the anchor end 19, an annular gap enclosed between the advancing piston 19 and the end cap 110 to promote the advancing end of the annular cavity 163. 第二作动机构3的锚固端环形空腔161通过液控中心2 的管线与第一作动机构1的锚固端环形空腔161连接,第二作动机构3的推进端环形空腔163 通过液控中心2的管线与第一作动机构1的锚固端环形空腔161和推进端环形空腔163连接。 Second actuating means 161 anchor end annular cavity 3 through the anchoring end of the annular cavity 161 pilot center line 2 and the first actuating mechanism 1 is connected to a second end of the actuating means advance through the annular cavity 163 3 2 the center line of the pilot actuating mechanism of the first anchor end 161 and an annular cavity advancing end of the annular chamber 163 is connected. [0064] 通过锚固端环形空腔161的进油,液控中心2依次控制第一作动机构1的锚固组件和第二作动机构3的锚固组件扩张;同理,通过锚固端环形空腔161的泄压,液控中心2依次控制第一作动机构1的锚固组件和第二作动机构3的锚固组件收缩。 [0064] The end of the annular cavity 161 by an anchor into the oil, hydraulic control center 2 controls the first actuator means sequentially anchor assembly 1 and a second actuating mechanism 3, the expansion anchor assembly; Similarly, an anchor end of the annular cavity relief 161, pilot center 2 controls the first actuator means sequentially anchor assembly 1 and a second actuating mechanism anchor assembly 3 contraction. 通过液控中心2向第一作动机构1的锚固端环形空腔161和第二作动机构3的锚固端环形空腔161内进油,液控中心2驱动推进活塞19和推进活塞19上连接的中心管11朝向推进端端盖110所在的一侧移动。 2 by the pilot into the center of the oil into the cavity 161 of the first end of the annular anchoring actuating means anchoring an end of the annular cavity 1611 and second actuating means 3, advancing the central driving pilot piston 19 and the piston 19 advancing center of the connecting tube 11 toward the advancing side of the movable end cap 110 is located. [0065] 全液压驱动井下管柱的加压装置采用全液压驱动的方式,对中心管11施加轴向压力,持续地在井底推进中心管。 [0065] The tubular string is fully hydraulic pressure device, a fully hydraulic manner, axial pressure is applied to the center tube 11, to advance continuously at the bottom of the central tube. 在钻井时有效地提供钻压加载,将连续管等其他井下管柱的辅助下入。 When drilling effective to provide WOB loading, with the aid of the continuous tube into the other tubular string. 另外,全液压驱动井下管柱的加压装置能将中心管11下入较长距离,中心管11持续推进直至到达目的层,解决了连续管或其他井下管柱作业时下入困难的问题。 In addition, hydraulic drive means capable of pressing the tubular string 11 down into the center tube distance is long, continuous tube 11 is advanced until the central layer to the object to solve the coiled tubing string or other downhole operations into a difficult problem nowadays.

[0066]作为一种可实施的方式,请参阅图4所示,液控中心2包括第一行程阀22、第二行程阀21、主换向阀23和顺序阀24;第一行程阀22与第一作动机构1的推进端端盖110连接,第二行程阀21与第二作动机构3的推进端端盖110连接。 [0066] As an embodiment of the embodiment, see FIG. 4, the center 2 comprises a first pilot valve 22 stroke, the second stroke of the valve 21, main valve 23 and the sequencing valve 24; valve 22 is a first stroke actuating means connected to the first propulsion end cap 1 110, a second stroke of the valve 21 is connected to the propulsion end cap 110 of the second actuating mechanism 3.

[0067] 主换向阀23通过主进油管路与液控中心2的进油口(图中P口)连接,主换向阀23分别通过第一进油管路、第二进油管路与第一作动机构1的锚固端环形空腔161、第二作动机构3的锚固端环形空腔161连接。 [0067] The main valve 23 is connected through a main inlet line and the fluid inlet port control center (FIG port P) 2, a main valve 23 through the first oil inlet passage, a second passage and the second inlet pipe an actuating mechanism anchoring the end of the annular cavity 1611, second actuating mechanism anchor end 1613 is connected to the annular cavity. 顺序阀24与主进油管路连接,顺序阀24通过主进油管路的压强信号控制主换向阀23与液控中心2的回油口(图中T口)之间的导通;通过推进活塞19与推进端端盖110的接触液控中心2控制第一行程阀22或第二行程阀21的触发。 Sequence valve 24 is connected to the main inlet line, the sequence valve 24 through the main valve inlet line pressure signal for controlling the conduction between the main 23 (FIG. T interface) and the fluid return port control center 2; by advancing advancing piston 19 and the end cap 110 contacts the pilot valve stroke center 2 controls the first valve 22 or the second trigger 21 stroke.

[0068] 进一步地,如图2所示,锚固组件包括锚固臂支撑环12、至少三根锚固臂13、滑块14 和锚固活塞18。 [0068] Further, as shown, the anchor assembly comprising an anchor arm 12 of the support ring 2, at least three anchoring arms 13, slide piston 18 and the anchor 14. 锚固臂支撑环12滑动套装在中心管11上,且锚固臂支撑环12位于锚固组件外露于液压缸16的部分的端部,锚固臂13的一端固定到锚固臂支撑环12上,其另一端固定到锚固端端盖15上;销固臂13能沿径向扩张或收缩,锚固臂13扩张,钺固臂支撑环12在中心管11上受力滑移。 12 sliding anchor arm support ring set on the central tube 11, and the anchor arm support ring 12 is located anchor assembly exposed to the end portion of the hydraulic cylinder 16, one end of the anchoring arm 13 is secured to the anchor arm support ring 12, the other end an end cap secured to the anchor 15; pinned arm 13 can expand or contract radially expandable anchoring arms 13, 12 of the support ring arm ax solid central pipe 11 on the slip force.

[0069] 锚固活塞18套装在中心管11上,锚固活塞18的一端滑动密封地置于液压缸16内; 锚固臂13沿中心管11的圆周均匀分布,滑块14位于锚固臂13包围的空腔内,滑块14套装在锚固活塞18上。 [0069] Set anchor piston 18 on the central tube 11, the anchor end of the piston seal 18 is slidably disposed within the cylinder 16; a space surrounded by the anchoring arms 13 along the central anchoring arms 13 evenly distributed circumferentially tube 11, the slider 14 cavity, the slide anchor 14 set on the piston 18. 通过锚固端环形空腔161的进油,锚固端环形空腔161推动锚固活塞I 8朝向锚固端端盖15运动,锚固活塞18推动套装其上的滑块14,继而滑块14的外周挤压锚固臂13 沿径向扩张。 An anchor end of the annular cavity 161 into the oil, an outer circumferential end of the annular cavity 161 to promote the anchoring an anchor I 8 towards the anchor end cap 15 of the piston movement, the piston 18 pushes the anchor 14 slide on which suit and then pressing the slider 14 13 along the radial expansion of the anchoring arms.

[0070] 较优地,请参阅图5和图6所示,锚固臂13包括具有弹性且呈条状的锚固臂本体131,锚固臂本体1:31的两端分别设置销孔,销孔中安装销,将锚固臂本体131的两端固定安装到锚固臂支撑环12和锚固端端盖15上,在锚固臂13发生径向扩张变形时锚固臂本体131 可绕销转动,避免锚固臂13端部受力过大而折断。 [0070] Jiaoyou manner, see FIGS. 5 and 6, the anchoring arm 13 comprises a bar shape and having an elastic arm body 131 of the anchor, the anchor arm body 1:31 ends are provided pin holes, pin hole mounting pin, both ends of the anchor arm body 131 is fixedly mounted to the anchor ring 12 and the support arm anchor end cap 15, the anchor arm body 131 rotatable about the pin 13 occurs when the anchoring arms deformed radially expanded, anchoring arms 13 to avoid end of excessive force and broken.

[0071] 进一步地,请参阅图7和图8所示,滑块14的外壁上设置至少一个斜面体,斜面体包括沿滑块14的圆周均匀分布的多个斜面142,斜面142朝向锚固臂支撑环12的一端向滑块14 的中心轴倾斜。 [0071] Further, see FIGS. 7 and 8, the outer wall 14 is provided at least one ramp of the slider body, a plurality of inclined surfaces includes a circumferential chamfer 14 along the slider 142 uniformly distributed, the inclined surface 142 toward the anchoring arms end of the support ring 12 is inclined to the center axis 14 of the slider. 斜面142朝向锚固臂支撑环12的运动挤压锚固臂13,锚固臂13沿径向扩张并与外界的井壁锚固。 Bevel 142 toward the anchoring movement of the support ring arm 12 pressing anchoring arms 13, the anchoring arms 13 to expand radially with the outside of the wall and anchored.

[0072] 进一步地,斜面体的数量为至少一个,斜面体上具有三个斜面142,斜面142沿滑块14的圆周的分布位置与锚固臂13沿中心管11的圆周的分布位置相对应。 [0072] Further, the number is at least a bevel, chamfer having three inclined surface 142, the distribution of the circumferential position of the inclined surface of the slider 142 along the circumference of the distribution of the anchor position of the arm 13 along the central pipe 14 corresponds to 11.

[0073]作为一种可实施的方式,锚固臂13上还可以设置滚轮133和销轴132,滚轮133通过销轴132横向活动地安装于所述锚固臂本体131上。 [0073] As an embodiment of the embodiment, it may be provided to the anchor arm 13 and pin 132 roller 133, the roller 133 by a pin 132 transversely movably mounted on the anchor arm body 131. 滑块14朝向锚固臂支撑环12的运动挤压锚固臂13时,滚轮133能在滑块14的斜面142上滚动,避免锚固臂13与滑块14之间的摩擦力过大,导致零部件过热或损坏。 Anchoring arms 14 toward the slide moving the support ring 12 of anchoring arms 13 is pressed, the roller 133 can roll on the inclined surface 142 of the slider 14, to avoid friction between the anchoring arm 13 and the slider 14 is too large, resulting in parts overheating or damage.

[0074] 进一步地,请参阅图9所示,锚固活塞18包括套筒部181和固定套装在套筒部181 - 端的活塞部183。 [0074] Further, please refer to FIG. 9, the anchoring of the piston 18 includes a sleeve portion sleeved on the sleeve 181 and the fixing portion 181 - end portion of the piston 183. 活塞部183滑动密封地置于液压缸16内;套筒部181的外壁上设置台阶182, 滑块14能沿套筒部181的外壁滑动直至与台阶182的水平面抵靠,台阶182用于限制的轴向位置,避免滑块14在挤压锚固臂13扩张时,滑块14朝向液压缸16退缩,不能有效地挤压锚固臂13扩张以致有效地锚固。 A sealing portion of the piston 183 slidably disposed within the cylinder 16; an outer wall of the sleeve 181 is provided a stepped portion 182, the slider 14 can be stepped up to the horizontal plane along the outer wall 182 against the sliding sleeve 181, the step 182 for limiting the axial position of the slider 14 is pressed to avoid the expansion of the anchor arm 13, the slider 14 back toward the hydraulic cylinder 16, can not be effectively squeezed expansion anchor arm 13 so as to effectively anchor.

[0075]作为一种可实施的方式,请结合图2所示,锚固活塞18上套装弹簧17,弹簧17的两端分别抵靠在活塞部183和锚固端端盖15的内侧。 [0075] As an embodiment mode, see FIG. 2 in conjunction with the anchor set on the spring 17 the piston 18, the ends of the spring 17 abut against the piston cap portion 183 and the inner end 15 of the anchor.

[0076] 较优地,请再参阅图3所示,锚固活塞行程腔162和推进活塞行程腔164的内径不同。 [0076] Jiaoyou, the Please refer FIG. 3, the anchoring of the piston stroke and advance the inner diameter of the cavity 162 of the piston 164 stroke chamber different. 本实施例中,锚固活塞行程腔162的内径大于推进活塞行程腔164的内径,液压缸16内形成阶梯孔,当锚固端环形空腔161的泄压时,锚固活塞18在弹簧17的作用下复位,阶梯孔起到限制锚固活塞18的位置的作用。 In this embodiment, the inner diameter of the anchoring of the piston stroke of the inner diameter of the cavity 162 is larger than the advancing stroke of the piston chamber 164 is formed a stepped cylinder bore 16, when the end of the annular pressure relief cavity 161 of the anchoring, the anchoring of the piston 18 under the action of the spring 17, reset, stepped holes serve to limit the anchoring effect of the position of the piston 18.

[0077] 作为一种可实施的方式,如图1所示,中心管11包括由第二作动机构3的推进活塞19、液控中心2和第一作动机构1的推进活塞I 9分隔形成的第一段112、第二段114、第三段116和第四段118。 [0077] As an embodiment of the embodiment, as shown in FIG 19 includes a center tube 111, the control center 2 and the first fluid actuating means is propelled by propulsion means 3 of the second actuating piston of the piston 1 I 9 separated the first section 112 is formed, a second segment 114, a third segment 116 and fourth segment 118. 较优地,第二段114的伸出端与液控中心2的一端采用螺纹连接,第三段116的伸出端与液控中心2的另一端采用螺纹连接。 Jiaoyou, a second section 114 with the pilot protruding end of the central threaded end 2 is connected, the other end of the third section 116 projecting end of the pilot center 2 threaded connection.

[0078] 请参阅图1〇和图11所示,推进活塞I9的两端分别设置第一凹槽19丨和第二凹槽193,第一凹槽191朝向锚固端端盖15,第二凹槽193朝向推进端端盖110。 [0078] Referring to FIG 1〇 and 11, both ends of the piston advancing I9 are provided a first recess and a second recess 19 Shu 193, 191 toward the first anchor end cap recess 15, second recess advancing the end cap 193 towards the groove 110. 第二作动机构3的第一凹槽191和第二凹槽193内分别固定连接第一段112和第二段114,第一作动机构1的第一凹槽191和第二凹槽193内分别固定连接第三段II 6和第四段118。 Second actuating means 3, a first groove 191 and 193 are fixedly connected to the first section 112 of the first groove 191 and a second segment 114, a first actuating mechanism 1 of the second groove and the second groove 193 are fixedly connected to the third segment and the fourth segment 118 II 6. 较优地,第一凹槽191和第二凹槽193的侧壁设置内螺纹,与中心管11的各段通过螺纹紧密连接。 Jiaoyou, the inner sidewall of the first groove 191 and second groove 193 of the screw, each section of the central tube 11 by a threaded connection tight.

[0079] 第一凹槽191的槽底与第二凹槽1的的槽底之间设置贯通的管路通道丨96, 一锚固端液压通道192从第一凹槽191的槽底贯通到推进活塞19的第一凹槽191所在端的端面,一推进端液压通道194从第二凹槽193的槽底贯通到推进活塞19的第二凹槽19 3所在端的端面。 Shu passage conduit is provided between the bottom of the through [0079] the bottom of the first groove 191 and second groove 1 96, one end of the anchor 192 through the hydraulic passage from the groove bottom of the first groove 191 to promote a first end surface of the piston 19 where groove 191 ends, a hydraulic passage 194 through the advance side from the groove bottom of the second recess to the second recess 193 of the boost piston 19 side end surface 193 is located. 锚固端液压通道192和推进端液压通道194均呈U形,较优地,锚固端液压通道192和推进端液压通道194对称分布在推进活塞19的两端,管路通道196位于推进活塞19的中心。 Advance hydraulic passage 192 and hydraulic passage 194 side showed a U-shaped anchor end, more, the advance hydraulic passage 192 and anchor end of the hydraulic passage 194 in the boost piston symmetrically at both ends, the conduit 196 is located in the channel 19 of the boost piston 19 center.

[OOSO] 第二作动机构3的锚固端液压通道192在第一凹槽191的槽底上的一端通过第一管线与第一作动机构1的锚固端液压通道192在第一凹槽191的槽底上的一端连通;第二作动机构3的推进端液压通道194在第二凹槽193的槽底上的一端通过第二管线与第一作动机构1的推进端液压通道194在第二凹槽193的槽底上的一端连通。 [OOSO] second actuating mechanism anchor end of the hydraulic passage 3 on the bottom end 192 of the first groove 191 of the first line by the first actuating means 192 anchor end of the hydraulic passage in the first recess 191 1 on the bottom end of the communication; end of the second actuating means advance hydraulic passage 194 in the end 3 of the second groove 193 on the bottom end of the second line by the first advancing actuation mechanism 194 in the hydraulic channel 1 One end of the second communicating groove 193 on the bottom.

[0081] 第一管线和第二管线均置于管路通道196和中心管11内;第二作动机构3的锚固端环形空腔161、第二作动机构3的锚固端液压通道192、第一管线和第一作动机构1的锚固端环形空腔161连通,第二作动机构3的推进端环形空腔163、第二作动机构3的推进端液压通道194、第二管线和第一作动机构1的推进端液压通道194连通。 [0081] The first line and the second line are disposed in the line passage 196 and the central tube 11; the second actuating means anchoring an end of the annular cavity 1613, second actuating mechanism anchor end of the hydraulic passage 3 192, a first line and a first actuating mechanism end of the annular cavity 161 communicates anchoring a second end of the actuating means 3, advancing the annular cavity 163, the second actuating means of the hydraulic propulsion of the channel 1943, and a second line a first actuating mechanism 194 of the hydraulic propulsion communication channel 1.

[0082] 进一步地,在第二段114外露于第二作动机构3的液压缸16的部分的外壁上或第二作动机构3的液压缸16的内壁上设置限位件,限位件限定第二作动机构3的推进活塞19在相应的液压缸16内移动的位置,避免在液压油压力不稳的情况下,中心管11朝向锚固臂支撑环12的反向运动,从而影响管柱下入的速度。 [0082] Further, in the second stage 114 is exposed to the second actuating means of the hydraulic cylinder 3 of the outer wall portion 16 or the second actuating means of the hydraulic cylinder 3 is provided on the inner wall 16 of the stopper member, the stopper member means defining a second actuating piston 19 moves propulsion 3 in a position corresponding hydraulic cylinder 16, hydraulic fluid under pressure to avoid instability, the anchoring arms 11 toward the center tube support ring 12 backward movement, thus affecting the tube column into the lower speed. 限位件和液压缸16内的阶梯孔,保证了锚固端环形空腔161在泄压时,锚固活塞18和推进活塞19的相邻的端面不会吸附贴合,往锚固端环形空腔161再次注油时不需克服额外的阻力,工作过程顺畅,避免全液压驱动井下管柱加压装置出现注油困难的故障。 The stopper member and the stepped bore in the hydraulic cylinder 16, to ensure that the anchoring end of the annular cavity 161 when the pressure relief, anchor piston 18 and piston 19 advance the adjacent end surface does not adsorb bonded, to the anchoring end of the annular cavity 161 when not required to overcome the resistance of the additional re-oiling work process smoothly, avoiding fully hydraulic pressing device failure tubular string lubrication difficulties arise.

[0083] 本发明的一种全液压驱动井下管柱的推进方法,其工作过程如下: [0083] A hydraulic drive according to the present invention, the entire tubular string propulsion method, which works as follows:

[0084] S10,全液压驱动井下管柱加压装置入井前,向第一作动机构1的推进端环形空腔163和第二作动机构3的推进端环形空腔163充入液压油;将全液压驱动井下管柱加压装置和中心管11 一起下入到井下; [0084] S10, all-hydraulic drive means before pressing the tubular string into the well, the propulsion end of the annular cavity of the first actuating mechanism 163 advancing end of the annular cavity 1 and the second actuating mechanism 3 is charged with hydraulic fluid 163; the tubular string is fully hydraulic pressurizing device and the central tube 11 together into a downhole;

[0085] S20,液控中心2控制液压油进入第一作动机构1的锚固端环形空腔161,第一作动机构1的锚固组件张紧锚固,第一作动机构1的锚固端环形空腔161的压强达到限定值,第一作动机构1的锚固端环形空腔161推动对应的推进活塞19带动其上固定连接的中心管11朝向第一作动机构1的推进端端盖110运动; [0085] S20, the pilot hydraulic oil into the center of the second control cavity 161 of the first end of the annular anchoring actuating means 1, a first actuating mechanism anchor tensioning anchor assembly 1, the first end of the annular anchoring actuating mechanism 1 the pressure cavity 161 reaches a limit value, a first actuating mechanism anchorage ends 161 of the annular cavity 1 corresponding to the driven propulsion propeller driven piston 19 which is fixedly connected end tube 11 of the central actuating mechanism towards the first end cap 110 1 motion;

[0086] 第一作动机构1的推进端环形空腔163中的液压油通过管线流入第二作动机构3的推进端环形空腔163,第二作动机构3的液压缸16相对于中心管11朝向第一作动机构1运动; [0087] S30,液控中心2控制液压油进入第二作动机构3的锚固端环形空腔161,第二作动机构3的锚固组件张紧锚固,第二作动机构3的锚固端环形空腔161的压强达到限定值;同时,第一作动机构1的锚固端环形空腔161卸压,第一作动机构1的锚固组件收缩复位;第二作动机构3的锚固端环形空腔161推动对应的推进活塞19带动其上固定连接的中心管11朝向第二作动机构3的推进端端盖110运动; Advancing end of the annular cavity 163 [0086] a first actuating mechanism 1 in the hydraulic oil into the propeller end of the annular cavity 163 of the second actuating means through line 3, the second actuating mechanism cylinder 163 with respect to the center tube 11 towards the first actuating mechanism movement 1; [0087] S30, the pilot hydraulic oil into the center of the second control cavity 161 of the second end of the annular anchoring actuating means 3, and the second actuating mechanism anchoring the tensioning anchor assembly 3 , the pressure end of the annular cavity 161 of the anchoring second actuating mechanism 3 reaches a limit value; Meanwhile, a first end of the annular anchoring actuating means 161 of the relief cavity 1, a first actuating mechanism reset contraction anchor assembly 1; second actuating means of the anchorage ends 161 push the annular cavity 3 corresponding to the propulsion drive piston 19 toward the center of the connecting tube 11 of the second actuator advancing mechanism 3 on which the movement of the end cap 110 is fixed;

[0088] S40,依次重复上述的S20和S30,中心管11持续朝向推进端端盖110推进。 [0088] S40, and S20 described above are repeated successively S30, the central pipe 11 continuously advancing towards the end cap 110 forward. 使用全液压驱动井下管柱的推进方法为上述的加压装置有效地加压,保证了钻井的效率,提高了油田产能。 The tubular string using a full hydraulic drive propulsion method effectively the pressure device pressure, to ensure the efficiency of the drilling, increased oil production.

[0089] 较优地,S10为全液压驱动井下管柱加压装置工作的初始状态,第一作动机构1的推进活塞19和第二作动机构3的推进活塞19均处于对应的推进活塞行程腔164的体积最大的位置;一般推进端环形空腔163预先冲入约一半体积的液压油。 [0089] Jiaoyou manner, S10 is a fully hydraulic pressure tubular string initial state of the work, a first actuating mechanism propulsion propeller 1 and the second piston 19 of the actuating mechanism 3 corresponding to the piston 19 are in the boost piston the maximum volume position of chamber 164 of the stroke; Fair advance into the end of the annular cavity 163 advance approximately half the volume of hydraulic oil.

[0090] 进一步地,S20中,第一作动机构1的锚固端环形空腔161的压强达到液控中心2的顺序阀24设定的限定值,顺序_导通;第一作动机构1的推进端端盖110接触,触发液控中心2的与第了作^机构1巧=^而二、连^^弟一行程阀22,液控中心2的主换向阀23换向,主换向阀2他制液压油的流向,顺序_24复位•' [0090] Further, S20, the first end of the annular anchoring mechanism actuator pressure chamber 161 reaches a hydraulic control center 2 the sequence valve 24 set limit value, the conduction order _; a first actuating mechanism 1 advancing the end cap 110 contacts the trigger control center 2 and the solution of the mechanism for ^ = ^ 1 and two Qiao, even a brother ^^ stroke valve 22, the center of the main pilot valve 23 2 is reversed, the main he valve 2 to the hydraulic oil system, a reset sequence _24 • '

[0091] S3〇中,第二作动机构3的锚固端环形空腔161的压强达到顺序阀24设定的限定值, 顺序阀24导通•,第二作动机构3的推进活塞I 9运动至与第二作动机构f的推进端端盖110接触,触发液控中心2的与第二作动机构3的推进端端盖110连接的第二行程阀21,主换向阀23 换向,顺序阀24复位。 [0091] S3〇, the second pressure actuating means 161 anchor end of the annular cavity 3 reaches the limit value set by the sequence valve 24, the valve 24 is turned • the sequence, the second actuating means of the boost piston I 9 3 21, movement of the main valve to the actuating means and the second end cap 110 f advancing contact trigger pilot center 2 and the propulsion means end of the second actuating valve 3 stroke end cap 110 is connected to a second transducer 23 the sequence valve 24 is reset.

[0092] 本发明除用于连续管钻井时的钻压加载和辅助下入,还可用于其他井下管柱,如小尺寸水平定向钻辅管。 [0092] The present invention is loaded into the lower WOB and secondary tubes in continuous except for drilling, also be used other tubular string, such as small size of the horizontal directional drilling auxiliary pipe.

[0093] 以上所述的具体实施例,对本发明的目的、技术方案和有益效果进行了进一步的详细说明,应当理解,以上所述仅为本发明的具体实施例而已,并不用于限定本发明的保护范围。 [0093] The foregoing specific embodiments of the object, technical solutions, and advantages of the invention will be further described in detail, it should be appreciated that the above descriptions are merely embodiments of the present invention only, not intended to limit the present invention the scope of protection. 特别指出,对于本领域技术人员来说,凡在本发明的精神和原则之内,所做的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。 In particular, the skilled person, within the spirit and principles of the present invention, any changes made, equivalent substitutions and improvements should be included within the scope of the present invention.

Claims (10)

1. 一种全液压驱动井下管柱的加压装置,其特征在于,全液压驱动井下管柱加压装置包括依次连接的第二作动机构、液控中心和第一作动机构; 所述第一作动机构和所述第二作动机构均包括依次设置的锚固组件、液压缸和推进活塞,所述推进活塞固定连接一中心管,所述中心管贯穿所述锚固组件和所述液压缸;所述液压缸的两端分别通过锚固端端盖和推进端端盖密封,所述推进活塞能在所述液压缸的推进活塞行程腔中滑动,所述锚固组件的一端滑动密封地置于所述液压缸内,所述锚固组件外露于所述液压缸的部分能沿径向扩张或收缩; 所述中心管的外壁与所述液压缸的内壁的环形间隙在所述锚固组件和所述推进活塞之间形成锚固端环形空腔,所述中心管的外壁与所述液压缸的内壁的环形间隙在所述推进活塞和所述推进端端盖之间形成推进端环形空 A full hydraulic pressurizing means driven tubular string, wherein the tubular string is fully hydraulic pressurizing means comprises a second actuating mechanism are connected, the pilot and a first actuating mechanism center; the a first actuating mechanism and said second actuating means comprises an anchor assembly arranged in sequence, a hydraulic cylinder and advancing a piston, the boost piston is fixedly connected to a central tube, the central tube extending through the anchor assembly and the hydraulic cylinder; ends of the cylinder are sealed by a cover cap and advancing the anchor end side, the thruster propulsion stroke of a sliding piston chamber of the piston in the hydraulic cylinder can, one end of the anchor assembly slidably sealingly set to said hydraulic cylinder, said anchor assembly to the exposed portion of the cylinder can expand or contract radially; the inner wall of the annular gap and the outer wall of the pipe in the hydraulic cylinder and the said anchor assembly advancing said anchoring end of the annular cavity is formed between the piston, the annular outer wall and the inner wall of the cylinder pipe forming a gap in the advancing advancing end of the annular space between the piston and the advancing end cap ;所述第二作动机构的锚固端环形空腔和推进端环形空腔分别通过所述液控中心的管线与所述第一作动机构中对应的锚固端环形空腔和推进端环形空腔连接; 通过所述锚固端环形空腔的进油所述液控中心依次控制所述第一作动机构的锚固组件和所述第二作动机构的锚固组件扩张,通过所述锚固端环形空腔的泄压所述液控中心依次控制所述第一作动机构的锚固组件和所述第二作动机构的锚固组件收缩;通过所述液控中心向所述锚固端环形空腔内进油,驱动所述推进活塞和所述中心管朝向所述推进端端盖一侧移动; 所述中心管包括由所述第二作动机构的推进活塞、所述液控中心和所述第一作动机构的推进活塞分隔形成的第一段、第二段、第三段和第四段; 所述推进活塞的两端分别设置第一凹槽和第二凹槽,所述第一凹槽朝向所述锚固端端盖,所述第二 ; Anchor end of the annular cavity and the second actuating mechanism advancing end of the annular cavity via lines of center of the pilot and the first actuating mechanism corresponding end of the annular cavity and advancing the anchoring end of the annular space chamber is connected; anchor assembly as recited in turn controls the first actuation mechanism by the anchoring of the oil into the annular cavity of the pilot end and center of the second expandable anchor assembly actuating mechanism by the end of the annular anchoring the pressure relief pilot central cavity of the anchor assembly of sequentially controlling the first actuating means and second actuating the anchor assembly contraction mechanism; annular cavity through the center of the pilot end to the anchor into the oil, the drive piston and advancing the pipe toward the advancing side of the movable end cap; the central tube comprises a piston, said liquid and said second control center by the propulsion of the second actuating mechanism advancing a first section of the piston actuating mechanism formed by spaced, second, third and fourth; advancing said first ends of the piston are provided and second recesses, the first recess an end cap toward the anchor slot, the second 凹槽朝向所述推进端端盖;所述第二作动机构的第一凹槽和第二凹槽内分别固定连接所述第一段和所述第二段,所述第一作动机构的第一凹槽和第二凹槽内分别固定连接所述第三段和所述第四段; > _ 所述第一凹槽的槽底与所述第二凹槽的槽底之间设置贯通的管路通道,一锚固端液压通道从所述第一凹槽的槽底贯通到所述推进活塞的第一凹槽所在端的端面,一推进端液压通道从所述第二凹槽的槽底贯通到所述推进活塞的第二凹槽所在端的端面; 所述第二作动机构的锚固端液压通道在所述第一凹槽的槽底上的一端通过第一管线与所述第一作动机构的锚固端液压通道在所述第一凹槽的槽底上的一端连通;所述第二作动机构的推进端液压通道在所述第二凹槽的槽底上的一端通过第二管线与所述第一作, 机构的推进端液压通道在所述第二凹槽的槽底上的一端 Advancing toward the end cap recess; are fixedly connected to the inner first and second segments of the first groove and the second actuating means a second recess, the first actuating mechanism the first groove and fixedly connected respectively to the third and fourth segment of the second groove;> _ is provided between the bottom of the first recess and the bottom of the second recess through conduit channel, through a hydraulic channel from the anchor end of the groove bottom of the first groove to said first groove of the piston where the advancing end of the end face, a groove end hydraulic passage from said second recess to promote to advance through the bottom end of the second groove is located in the end surface of the piston; the channels of the second end of the anchor end of the hydraulic actuator means is in the first groove on the bottom by a first line and the first One end of the anchor end of the hydraulic passage in the actuating mechanism of the first groove bottom communication; promote passage of the second end of the hydraulic actuator means at one end on the bottom of the second recess by the first end end advance hydraulic passage for the first two lines, means on the bottom of the second recess 通;所述第一管线和所述第二管线均置于所述管路通道和所述中心管内。 Pass; the first line and the second line are placed within the passage and the conduit pipe. ^ ^
2. 根据权利要求1所述的全液压驱动井下管柱的加压装置,其特征在于,所述液控中心包括第一行程阀、第二行程阀、主换向阀和顺序阀;所述第一行程阀与所述第一作动机构的推进端端盖连接,所述第二行程阀与所述第二作动机构的推进端端盖连接; 所述主换向阀通过主进油管路与所述液控中心的进油口连接,所述主换向阀分别通过第一进油管路、第二进油管路与所述第一作动机构的锚固端环形空腔、所述第二作动机构的锚固端环形空腔连接;所述顺序阀与所述主进油管路连接,所述顺序阀通过所述主进油管路的压强信号控制所述主换向阀与所述液控中心的回油口之间的导通;通过所述推进活塞与所述推进端端盖的接触所述液控中心控制所述第一行程阀或所述第二行程阀的触发。 The tubular string is fully hydraulic pressure device according to claim 1, wherein said central pilot valve comprises a first stroke, the second stroke valve, the main valve and the sequencing valve; the the first end of the advancing stroke of the first valve and the actuator mechanism connected to the end cap, the second end of the advancing stroke of the second valve actuating mechanism end cap; said main valve through the main intake pipe the center channel and the pilot oil inlet connected to the main valve via a first inlet line, respectively, the anchoring end of the annular cavity of the second in-line with the first actuating mechanism, said first two anchor end annular cavity actuating means; said sequence valve and the main inlet line connected to the pressure signal for controlling the sequence valve through said main inlet line and the main valve of the liquid conduction between the oil return port control center; by controlling the propulsion stroke of the valve trigger the first or the second stroke of the valve piston and the pilot contacts the advancing end cap of the center.
3. 根据权利要求1所述的全液压驱动井下管柱的加压装置,其特征在于,所述锚固组件包括滑动套装在所述中心管上的锚固臂支撑环、能沿径向扩张或收缩的至少三根锚固臂、 滑块和锚固活塞;所述锚固臂支撑环位于所述锚固组件外露于所述液压缸的部分的端部, 所述锚固臂的一端固定到所述锚固臂支撑环上,其另一端固定到所述锚固端端盖上; 所述锚固活塞套装在所述中心管上,所述锚固活塞的一端滑动密封地置于所述液压缸内;所述锚固臂沿所述中心管的圆周均匀分布,所述滑块位于所述锚固臂包围的空腔内,所述滑块套装在所述锚固活塞上;通过所述锚固端环形空腔的进油推动所述锚固活塞朝向所述锚固端端盖运动,所述锚固活塞推动所述滑块,所述滑块的外周挤压所述锚固臂沿径向扩张。 The tubular string is fully hydraulic pressure device according to claim 1, wherein said anchor assembly comprises an anchor arm support ring slidably set on the central tube, can expand or contract radially at least three anchoring arm, and anchoring of the piston slider; arm supporting the anchor ring of the anchor assembly is located in said exposed end portion of the hydraulic cylinder, one end of the anchoring arm is secured to the anchor arm support ring and the other end secured to the anchor end to end cover; fitted over the piston anchor the central tube, the anchor end of the piston is sealingly slidably disposed in the hydraulic cylinder; said anchoring arms along the uniformly distributed circumferentially central tube, the slide positioned within the cavity surrounded by the anchor arm, the slide piston is sleeved on the anchor; oil into the annular cavity through the anchor end of the piston pushes the anchor end cap movement toward the anchor, the anchor outer periphery of the piston pushes a slider pressing the anchoring arms expands radially.
4. 根据权利要求3所述的全液压驱动井下管柱的加压装置,其特征在于,所述锚固活塞包括套筒部和固定套装在所述套筒部一端的活塞部,所述活塞部滑动密封地置于所述液压缸内;所述套筒部的外壁上设置台阶,所述滑块能沿所述套筒部的外壁滑动直至与所述台阶的水平面抵靠。 4. The tubular string is fully hydraulic pressure device according to claim 3, wherein said anchoring portion comprises a sleeve piston and piston set fixing portion of the sleeve end portion, the piston portion sealingly slidably disposed in the hydraulic cylinder; said outer wall of the sleeve is provided a step portion, can slide along the outer wall of the sleeve portion slides up the horizontal plane against the step.
5. 根据权利要求4所述的全液压驱动井下管柱的加压装置,其特征在于,所述锚固活塞上套装弹簧,所述弹簧的两端分别抵靠在所述活塞部和所述锚固端端盖的内侧。 The tubular string is fully hydraulic pressing apparatus according to claim 4, wherein said anchoring kit piston spring, both ends of the spring abut against the piston portion and the anchor the inner end of the end cap.
6. 根据权利要求3所述的全液压驱动井下管柱的加压装置,其特征在于,所述滑块的外壁上设置至少一个斜面体,所述斜面体包括沿所述滑块的圆周均匀分布的多个斜面,所述斜面朝向所述锚固臂支撑环的一端向所述滑块的中心轴倾斜;所述斜面朝向所述锚固臂支撑环的运动挤压所述锚固臂,所述锚固臂沿径向扩张并与外界的井壁锚固。 The tubular string is fully hydraulic pressure device according to claim 3, characterized in that the outer wall is provided at least one inclined surface of the slider body, said body comprising a ramp uniformly along the circumference of said slider a plurality of inclined surfaces of the distribution, the ramp toward the anchor end of the support arm inclined to the center axis of the ring of the slider; the ramp toward the anchor arm support ring pressing movement of the anchoring arms, the anchor and anchor arms to expand radially with the outside wall.
7. 根据权利要求6所述的全液压驱动井下管柱的加压装置,其特征在于,所述斜面体的数量为至少一个,所述斜面体上具有三个所述斜面,所述斜面沿所述滑块的圆周的分布位置与所述锚固臂沿所述中心管的圆周的分布位置相对应。 The tubular string is fully hydraulic pressure device according to claim 6, wherein the number of said at least one ramp member having the inclined surface on the three bevel, along said inclined surface distribution of the slider position with the circumferential distribution of the circumferential position of the anchoring arms in the central tube, respectively.
8. 根据权利要求6所述的全液压驱动井下管柱的加压装置,其特征在于,所述销固臂上设置滚轮,所述滚轮能在所述斜面上滚动。 According to claim 6, wherein the full hydraulic pressure drive means of the tubular string, wherein the arm is provided pinned roller, the roller can roll on the ramp. _ _
9. 根据权利要求1所述的全液压驱动井下管柱的加压装置,其特征在于,在所述第二段外露于所述第二作动机构的液压缸的部分的外壁上或所述第二作动机构的液压缸的内壁上设置限位件,所述限位件限定所述第二作动机构的推进活塞在相应的所述液压缸内移动的位置。 According to claim 1, wherein the full hydraulic pressure drive means of the tubular string, wherein, in said second section exposed to the second cylinder actuator mechanism or the outer wall portion the inner wall of the cylinder stopper provided a second actuating mechanism, the stopper member defines the movement of the boost piston in the cylinder corresponding to the second position of the hydraulic actuating mechanism. ^ ^
10. -种全液压驱动井下管柱的推进方法,其特征在于,采用权利要求1至9任一项所述的全液压驱动井下管柱加压装置,其工作过程如下: & S10,所述全液压驱动井下管柱加压装置入井前,向第一作动机构的推进端环形空胜和第二作动机构的推进端环形空腔充入液压油;将所述全液压驱动井下管柱加压装置和中心管一起下入到井下; S20,液控中心控制液压油进入所述第一作动机构的锚固端环形空腔,所述第一作动f 构的锚固组件张紧锚固,所述第一作动机构的锚固端环形空腔的压强达到限定值,;f述第一作动机构的锚固端环形空腔推动对应的推进活塞带动其上固定连接的所述中心管朝向所述第一作动机构的推进端端盖运动; 所述第一作动机构的推进端环形空腔中的液压油通过管线流入所述第二作动机构6勺推进端环形空腔,所述第二作动机构的液压缸相对 10. - The method of propulsion types fully hydraulic tubular string, wherein the all-hydraulic drive according to any one of claims 1 to 9 using the apparatus as claimed in claim pressing the tubular string, which works as follows: & S10, the full hydraulic drive means before pressing the tubular string into the well, to promote the advancing side end of the annular space and a second actuating mechanism wins a first annular cavity actuating means charged hydraulic oil; the fully hydraulic tubular string pressurizing means and with the central tube into the downhole; S20, central control pilot hydraulic oil into the cavity of the first end of the annular anchoring actuating means, the configuration of a first actuating f tensioning anchor anchor assembly, the anchoring end of the annular cavity pressure actuating means reaches a first limit value,; f said anchoring end of the annular cavity of the first actuator pushing mechanism advancing the piston drive which is fixedly connected to the central tube facing the corresponding advancing a first end of said actuator cap moving mechanism; advancing end of the annular cavity of the first actuator means in said hydraulic oil flows through line 6 tablespoons second actuating mechanism advancing end of the annular cavity, the second actuating means of the hydraulic cylinder relative 所述中心管朝向所述第一作动机构运动; S30,所述液控中心控制液压油进入所述第二作动机构的锚固端环形空腔,所述第二作动机构的锚固组件张紧锚固,所述第二作动机构的锚固端环形空腔的压强达到限定值;同时,所述第一作动机构的锚固端环形空腔卸压,所述第一作动机构的锚固组件收缩复位•,所述第二作动机构的锚固端环形空腔推动对应的推进活塞带动其上固定连接的所述中心管朝向所述第二作动机构的推进端端盖运动; 、、、、_、& 、 S40,依次重复上述的S2〇和S30,所述中心管持续朝向所述推进端端盖推进。 The central tube towards the first actuating mechanism movement; S30, central control of the pilot hydraulic oil into the cavity of the second end of the annular anchoring actuating means, said anchor assembly of sheets of the second actuating mechanism tight anchoring, the anchoring end of the annular cavity of the pressure of the actuating means reaches a second limit; the same time, the first anchor end annular cavity of the pressure relief actuator mechanism, the first anchor assembly actuating mechanism shrinkage reset •, the anchoring end of the annular cavity of the second actuating mechanism pushes the piston drive its corresponding advance the central tube towards the end of the second propulsion means actuating movement of the end cap fixedly connected; ,,, , _, &, S40, and sequentially repeating the above-described S2〇 S30, the central tube towards the continuously advancing end cap propulsion. 、、 11 •根据权鹏求1G臟的全麵驱动肝管_推进方法,征在于,所^2〇中' 臓第-作动机猶侧端聊s細麵細臟雜巾心__设定醒定值,所述顺序阀导通;祕第-作动__腦塞运动鮮臟第-作动机H推ff ^ 触,触发臟雜巾她与臟第-作动机雛赚端端盖雜的第:彳7_,所述獄控中心的主换向阀换向,所駐换向阀控制液压油的流向,臟顺_£阀^^广掘、^_中所述S30中,所述第二作动机构的锚固端环形空腔的压强达^述值,臟顺序阀导通;臓第二作动机构的推进活塞运动至与一阀所端盖接触,触发所述液控中心、的与所述第二作动机_雜摩細雜的第^门' 述主换向阀换向,所述顺序阀复位。 ,, 11 • 1G according to the weights required Peng dirty hepatic duct _ full drive propulsion method, characterized in that, in the 2〇 ^ 'Zang - of Utah motivation for thin side end surface of the thin s chat heteroaryl dirty towel set heart __ wake value, the sequence valve is turned on; first secret - __ actuating piston motion fresh brain dirty section - for motives ff ^ H pushing contact, trigger heteroaryl dirty dirty towels and her first - as motivation to make end cap heteroaryl young of: 7_ left foot, the main control center prison reversing valve, the flow control valve in the hydraulic oil, dirty valve cis ^^ _ £ dig wide, in the ^ _ S30, the anchoring a second end of the annular cavity actuating means of said pressure value of ^, dirty sequence valve turned on; Zang second actuating means to promote movement of the piston to the end cap in contact with a valve, said trigger pilot center, the motivation for the second friction heteroaryl fine _ ^ heteroaryl first gate 'change to said main valve, said sequence valve reset.
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