CN115949370A - Light ring type dissolvable bridge plug - Google Patents

Light ring type dissolvable bridge plug Download PDF

Info

Publication number
CN115949370A
CN115949370A CN202310224632.5A CN202310224632A CN115949370A CN 115949370 A CN115949370 A CN 115949370A CN 202310224632 A CN202310224632 A CN 202310224632A CN 115949370 A CN115949370 A CN 115949370A
Authority
CN
China
Prior art keywords
pressure ring
cone
bridge plug
slip
shaped metal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202310224632.5A
Other languages
Chinese (zh)
Other versions
CN115949370B (en
Inventor
刘宝胜
刘文涛
于硕
卫嘉莉
张跃忠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Yishenrui Technology Co ltd
XI'AN YUXING PETROLEUM MACHINERY OF NEW TECHNOLOGY DEVELOPMENT CO LTD
Original Assignee
Taiyuan University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Taiyuan University of Science and Technology filed Critical Taiyuan University of Science and Technology
Priority to CN202310224632.5A priority Critical patent/CN115949370B/en
Publication of CN115949370A publication Critical patent/CN115949370A/en
Application granted granted Critical
Publication of CN115949370B publication Critical patent/CN115949370B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/30Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways

Landscapes

  • Prostheses (AREA)
  • Pressure Vessels And Lids Thereof (AREA)

Abstract

The invention discloses an aperture type dissolvable bridge plug, which belongs to the technical field of oil layer plugging equipment, and is sleeved on a tubular shaft, the tubular shaft is sleeved on a mandrel, the bridge plug comprises an upper pressing ring, an upper slip component, an upper slip pressing platform, a first pressing ring, an upper cone, an aperture structure, a lower cone, a second pressing ring, a lower slip pressing platform, a lower slip component, a lower pressing ring and a positioning pushing sleeve which are sequentially arranged, the upper cone is a hollow cone with a downward conical surface, the bottom of the upper cone extends into the aperture structure, the lower cone is a hollow cone with an upward conical surface, the top of the lower cone extends into the aperture structure, the aperture structure comprises a plurality of arc-shaped metal sheets which are sequentially overlapped, a pulley device is arranged in the middle of the inner wall of each arc-shaped metal sheet, and a sliding rail matched with the pulley device is arranged on the outer wall of the adjacent arc-shaped metal sheets. The diaphragm type dissolvable bridge plug with the structure realizes variable-diameter setting through the force application of the upper and lower cones to the diaphragm structure, and the blocking effect is stable and durable.

Description

一种光圈型可溶解桥塞An aperture type dissolvable bridge plug

技术领域technical field

本发明涉及油层封堵设备技术领域,尤其是涉及一种光圈型可溶解桥塞。The invention relates to the technical field of oil layer plugging equipment, in particular to an aperture type dissolvable bridge plug.

背景技术Background technique

在油田的勘探开采中需要一种临时性的封堵工艺,来封堵当前的生产层,以便于对其他产层进行实施开采,待工艺完成以后,接触临时封堵,建立生产层与井筒的流动通道,实现对油、气井的采油、采气生产。虽然桥塞的封堵技术在开发和改造的过程中得到了广泛的应用,但是桥塞中存在以下技术问题,桥塞在坐封完成后的过程中存在封堵效果不稳定,并不能封堵当前的生产层,导致桥塞起不到封堵的作用,从而使得生产无法正常进行,同时还发现永久性桥塞的溶解不完全,存在大量橡胶等不溶解的物质,需要人工打捞,这就消耗了工期和人力。In the exploration and production of oil fields, a temporary plugging process is needed to block the current production layer so as to facilitate the exploitation of other production layers. After the process is completed, contact temporary plugging to establish the connection between the production layer and the wellbore. The flow channel realizes the oil and gas production of oil and gas wells. Although the plugging technology of bridge plugs has been widely used in the process of development and reconstruction, there are the following technical problems in the bridge plugs. The plugging effect of the bridge plugs is unstable after the completion of the setting process and cannot be plugged In the current production layer, the bridge plug cannot play the role of plugging, so that the production cannot be carried out normally. At the same time, it is also found that the permanent bridge plug is not completely dissolved, and there are a lot of insoluble substances such as rubber, which need to be salvaged manually. Consumed time and manpower.

发明内容Contents of the invention

本发明的目的是提供一种光圈型可溶解桥塞,通过上下椎体对光圈结构的施力实现进行变径坐封,封堵效果稳定持久。The purpose of the present invention is to provide an aperture-type dissolvable bridge plug, which realizes variable-diameter setting by applying force to the aperture structure from the upper and lower vertebral bodies, and the sealing effect is stable and long-lasting.

为实现上述目的,本发明提供了一种光圈型可溶解桥塞,套设于管轴上,所述管轴套设于芯轴上,其特征在于:包括依次设置的上压环、上卡瓦组件、上卡瓦压台、第一压环、上椎体、光圈结构、下椎体、第二压环、下卡瓦压台、下卡瓦组件、下压环和定位推套,所述上椎体为圆锥面朝下的空心圆锥体,所述上椎体的底部伸入所述光圈结构内,所述下椎体为圆锥面朝上的空心圆锥体,所述下椎体的顶部伸入所述光圈结构内,所述光圈结构包括若干依次搭接的弧形金属片,所述弧形金属片的内壁中部设置有滑轮装置,相邻所述弧形金属片的外壁上设置有与所述滑轮装置相配合的滑轨。In order to achieve the above purpose, the present invention provides an aperture type dissolvable bridge plug, which is sleeved on the tube shaft, and the tube shaft is sleeved on the mandrel, and is characterized in that it includes an upper pressure ring, an upper clip The shoe assembly, the upper slip table, the first pressure ring, the upper cone, the aperture structure, the lower cone, the second pressure ring, the lower slip table, the lower slip assembly, the lower pressure ring and the positioning push sleeve, all The above-mentioned upper vertebral body is a hollow cone with the conical face facing down, the bottom of the upper vertebral body extends into the aperture structure, and the lower vertebral body is a hollow cone with the conical face facing upwards, and the bottom of the lower vertebral body The top protrudes into the aperture structure, and the aperture structure includes several arc-shaped metal sheets overlapped in sequence, a pulley device is arranged in the middle of the inner wall of the arc-shaped metal sheet, and a pulley device is arranged on the outer wall adjacent to the arc-shaped metal sheet. There are slide rails matched with the pulley assembly.

优选的,所述上压环的顶部设置有挤压凸台,所述上压环固定在所述上卡瓦组件的顶端,所述上卡瓦压台的顶端伸入所述上卡瓦组件与所述管轴之间。Preferably, the top of the upper pressure ring is provided with an extruding boss, the upper pressure ring is fixed on the top of the upper slip assembly, and the top of the upper slip pressing platform extends into the upper slip assembly between the tube axis.

优选的,所述定位推套与所述下压环固定连接,所述下压环与所述下卡瓦组件固定连接,所述下卡瓦压台的底端伸入所述下卡瓦组件与所述管轴之间。Preferably, the positioning push sleeve is fixedly connected to the lower pressure ring, the lower pressure ring is fixedly connected to the lower slip assembly, and the bottom end of the lower slip pressing table extends into the lower slip assembly between the tube axis.

优选的,所述上卡瓦压台与所述第一压环相连接,所述第一压环的下端面与所述上椎体的上端面相接触,所述下卡瓦压台与所述第二压环相连接,所述第二压环的上端面与所述下椎体的下端面相接触。Preferably, the upper slip table is connected to the first pressure ring, the lower end surface of the first pressure ring is in contact with the upper end surface of the upper vertebral body, and the lower slip table is connected to the The second pressure ring is connected, and the upper end surface of the second pressure ring is in contact with the lower end surface of the lower vertebral body.

优选的,所述管轴的半径小于所述上椎体的下端面内径和所述下椎体的上端面内径,所述上椎体的下端面内径和所述下椎体的上端面内径小于所述光圈结构的初始状态内径。Preferably, the radius of the tube axis is smaller than the inner diameter of the lower end surface of the upper vertebral body and the inner diameter of the upper end surface of the lower vertebral body, and the inner diameter of the lower end surface of the upper vertebral body and the inner diameter of the upper end surface of the lower vertebral body are less than The initial state inner diameter of the aperture structure.

优选的,所述弧形金属片的最外端设置有防漏橡胶条,所述防漏橡胶条与相邻所述弧形金属片的外壁相接触。Preferably, the outermost end of the arc-shaped metal sheet is provided with a leak-proof rubber strip, and the leak-proof rubber strip is in contact with the outer wall of the adjacent arc-shaped metal sheet.

优选的,所述光圈结构的上表面和下表面中央分别设置有金属薄片。Preferably, thin metal sheets are respectively arranged at the center of the upper surface and the lower surface of the aperture structure.

因此,本发明采用上述结构的一种光圈型可溶解桥塞,通过上下卡瓦组件分别压迫上椎体和下椎体,上椎体和下椎体对光圈结构施力,使光圈结构变形变径,达到坐封效果,其封堵效果稳定持久;并且整体采用可溶解材料,避免现有的永久性桥塞溶解不完全,需要人工打捞的问题。Therefore, the present invention adopts a kind of aperture type dissolvable bridge plug with the above-mentioned structure. The upper and lower vertebral bodies are respectively pressed by the upper and lower slip assemblies. diameter, to achieve the setting effect, and its sealing effect is stable and long-lasting; and the overall use of dissolvable materials avoids the problem of incomplete dissolution of the existing permanent bridge plug and the need for manual salvage.

下面通过附图和实施例,对本发明的技术方案做进一步的详细描述。The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

附图说明Description of drawings

图1为本发明一种光圈型可溶解桥塞实施例的结构示意图;Fig. 1 is a schematic structural view of an embodiment of an aperture type dissolvable bridge plug of the present invention;

图2为本发明实施例的光圈结构初始状态俯视图;2 is a top view of the initial state of the aperture structure of the embodiment of the present invention;

图3为本发明实施例的光圈结构封堵状态俯视图;Fig. 3 is a top view of the blocking state of the aperture structure of the embodiment of the present invention;

图4为本发明实施例的弧形金属片外壁结构示意图。Fig. 4 is a schematic diagram of the outer wall structure of the arc-shaped metal sheet according to the embodiment of the present invention.

附图标记reference sign

1、芯轴;2、管轴;3、挤压凸台;4、上压环;5、上卡瓦组件;6、上卡瓦压台;7、第一压环;8、上椎体;9、光圈结构;10、弧形金属片;11、下椎体;12、第二压环;13、下卡瓦压台;14、下卡瓦组件;15、下压环;16、定位推管;17、滑轨;18、防漏橡胶条;19、金属薄片。1. Mandrel; 2. Tube shaft; 3. Extrusion boss; 4. Upper pressure ring; 5. Upper slip assembly; 6. Upper slip pressure table; 7. First pressure ring; 8. Upper vertebral body ;9. Aperture structure; 10. Arc-shaped metal sheet; 11. Lower vertebral body; 12. Second pressure ring; 13. Lower slip pressure platform; 14. Lower slip assembly; 15. Lower pressure ring; 16. Positioning Push tube; 17, slide rail; 18, leak-proof rubber strip; 19, metal sheet.

具体实施方式Detailed ways

以下通过附图和实施例对本发明的技术方案作进一步说明。The technical solutions of the present invention will be further described below through the accompanying drawings and embodiments.

实施例Example

如图所示,一种光圈型可溶解桥塞,套设于管轴2上,管轴2套设于芯轴1上。桥塞包括依次设置的上压环4、上卡瓦组件5、上卡瓦压台6、第一压环7、上椎体8、光圈结构9、下椎体11、第二压环12、下卡瓦压台13、下卡瓦组件14、下压环15和定位推套16。As shown in the figure, an aperture type dissolvable bridge plug is sheathed on the tube shaft 2 , and the tube shaft 2 is sleeved on the mandrel 1 . The bridge plug includes an upper pressure ring 4, an upper slip assembly 5, an upper slip pressure table 6, a first pressure ring 7, an upper cone 8, an aperture structure 9, a lower cone 11, a second pressure ring 12, The lower slip press table 13, the lower slip assembly 14, the lower pressure ring 15 and the positioning push sleeve 16.

上椎体8、下椎体11和光圈结构9均采用可溶解材料,但其耐腐蚀性应略高于桥塞本身所用材料,其中上卡瓦压台6、中心管轴2和下卡瓦压台13可以与现有卡瓦压台材质相同,也可以不同。其中第一压环7和第二要足够支撑卡瓦压台与锥形体之间的压力传导,要求具有较高的强度。The upper vertebral body 8, the lower vertebral body 11 and the aperture structure 9 are all made of dissolvable materials, but their corrosion resistance should be slightly higher than that of the bridge plug itself. The material of the pressing table 13 may be the same as or different from that of the existing slip pressing table. Among them, the first pressure ring 7 and the second pressure ring should be sufficient to support the pressure conduction between the slip pressure table and the cone, and require high strength.

上压环4的顶部设置有挤压凸台3,上压环4固定在上卡瓦组件5的顶端,上压环4通过上卡瓦组件5对上卡瓦压台6施力。在轴向力的作用下,上卡瓦压台6的顶端伸入上卡瓦组件5与管轴2之间,起到坐封的作用。上卡瓦压台6与第一压环7相连接,第一压环7的下端面与上椎体8的上端面相接触,上卡瓦压台6通过第一压环7压迫上椎体8。The top of the upper pressure ring 4 is provided with an extruding boss 3 , the upper pressure ring 4 is fixed on the top of the upper slip assembly 5 , and the upper pressure ring 4 exerts force on the upper slip table 6 through the upper slip assembly 5 . Under the action of the axial force, the top end of the upper slip table 6 extends into the space between the upper slip assembly 5 and the tube shaft 2 to play the role of setting seal. The upper slip table 6 is connected with the first pressure ring 7, the lower end surface of the first pressure ring 7 is in contact with the upper end surface of the upper vertebral body 8, and the upper slip table 6 presses the upper vertebral body 8 through the first pressure ring 7 .

定位推套16与下压环15固定连接,下压环15与下卡瓦组件14固定连接,下卡瓦压台13的底端伸入下卡瓦组件14与管轴2之间。下卡瓦压台13与第二压环12相连接,第二压环12的上端面与下椎体11的下端面相接触,下卡瓦压台13通过第二压环12压迫下椎体11。其中第一压环7与上椎体8、第二压环12与下椎体11都需紧密接触,其作用是防止桥塞所受的轴向力在传导的过程中发生损失。上卡瓦压台6与第一压环7的紧密连接和下卡瓦压台13与第二压环12的紧密连接,是为了防止轴向力传导过程中的损耗。同时,第一压环7和第二压环12的存在能够防止上下卡瓦台与上下椎体直接接触发生金属摩擦,避免损耗材料,从而影响性能。The positioning push sleeve 16 is fixedly connected with the lower pressure ring 15 , the lower pressure ring 15 is fixedly connected with the lower slip assembly 14 , and the bottom end of the lower slip pressing table 13 extends between the lower slip assembly 14 and the tubular shaft 2 . The lower slip press 13 is connected to the second press ring 12, the upper end surface of the second press ring 12 is in contact with the lower end surface of the lower vertebral body 11, and the lower slip press 13 presses the lower vertebral body 11 through the second press ring 12 . The first pressure ring 7 is in close contact with the upper vertebral body 8, and the second pressure ring 12 is in close contact with the lower vertebral body 11, and its function is to prevent the loss of the axial force on the bridge plug during transmission. The tight connection between the upper slip pressure table 6 and the first pressure ring 7 and the close connection between the lower slip pressure table 13 and the second pressure ring 12 is to prevent loss during axial force transmission. At the same time, the existence of the first pressure ring 7 and the second pressure ring 12 can prevent the metal friction between the upper and lower slip tables and the upper and lower vertebral bodies in direct contact, avoid material loss, and thus affect performance.

上椎体8为圆锥面朝下的空心圆锥体,上椎体8的底部伸入光圈结构9内,下椎体11为圆锥面朝上的空心圆锥体,下椎体11的顶部伸入光圈结构9内。上椎体8和下椎体11的斜面程度决定了光圈结构9的运动时间,斜面坡度越大,光圈结构9运动完成的速率越快。管轴2的半径小于上椎体8的下端面内径和下椎体11的上端面内径,使上椎体8和下椎体11可以在轴向力的作用下轻松的沿着管轴2滑动。上椎体8的下端面和下椎体11的上端面具有相配合的卡接结构,使上椎体8和下椎体11发生接触后锁死,能够避免上下椎体倒退后使得光圈结构9回缩,使得封堵效果失效。The upper vertebral body 8 is a hollow cone with the conical surface facing downwards, the bottom of the upper vertebral body 8 extends into the aperture structure 9, the lower vertebral body 11 is a hollow cone with the conical surface facing upwards, and the top of the lower vertebral body 11 extends into the aperture Inside structure 9. The degree of slope of the upper vertebral body 8 and the lower vertebral body 11 determines the movement time of the aperture structure 9 , the greater the slope of the slope, the faster the movement of the aperture structure 9 is completed. The radius of the tubular shaft 2 is smaller than the inner diameter of the lower end surface of the upper vertebral body 8 and the inner diameter of the upper end surface of the lower vertebral body 11, so that the upper vertebral body 8 and the lower vertebral body 11 can easily slide along the tubular shaft 2 under the action of axial force . The lower end surface of the upper vertebral body 8 and the upper end surface of the lower vertebral body 11 have a matching snap-in structure, so that the upper vertebral body 8 and the lower vertebral body 11 are locked after contact, which can prevent the upper and lower vertebral bodies from retreating so that the aperture structure 9 Retraction makes the blocking effect invalid.

光圈结构9包括15个依次搭接的弧形金属片10,弧形金属片10的内边缘构成内圆面,弧形金属片10的外边缘构成外圆面。弧形金属片10的厚度和数量在一定程度上决定了光圈结构9扩张后的半径,影响桥塞的封堵效果,因此可根据实际需要进行设计。The aperture structure 9 includes 15 arc-shaped metal sheets 10 overlapping one after another, the inner edges of the arc-shaped metal sheets 10 form an inner circular surface, and the outer edges of the arc-shaped metal sheets 10 form an outer circular surface. The thickness and quantity of the arc-shaped metal sheets 10 determine the expanded radius of the aperture structure 9 to a certain extent, which affects the sealing effect of the bridge plug, so it can be designed according to actual needs.

弧形金属片10的内壁中部设置有滑轮装置,滑轮装置垂直于轴向,相邻的弧形金属片10的外壁上设置与滑轮装置相配合的滑轨17。滑轮装置和滑轨17能够避免弧形金属片10在运动过程中脱落致使封堵效果失效。通过限定滑轮装置在滑轨17上的移动距离,能够改变光圈结构9扩张后的外圆面半径,因此可根据实际需要灵活调整。The middle part of the inner wall of the arc-shaped metal sheet 10 is provided with a pulley device, and the pulley device is perpendicular to the axial direction, and the outer wall of the adjacent arc-shaped metal sheet 10 is provided with a slide rail 17 matched with the pulley device. The pulley device and slide rail 17 can prevent the arc-shaped metal sheet 10 from falling off during the movement, resulting in failure of the sealing effect. By limiting the moving distance of the pulley device on the slide rail 17, the radius of the expanded outer circle of the aperture structure 9 can be changed, so it can be flexibly adjusted according to actual needs.

上椎体8的下端面内径和下椎体11的上端面内径小于光圈结构9的初始状态内径。光圈结构9的上下端空心圆表面设置有金属薄片19,其作用是固定弧形金属片10的初始形态,并且防止桥塞在运输的过程中,上下椎体受到轴向力向光圈结构9靠拢,使得光圈结构9提前受力向外扩张。其扩张的部分会影响桥塞的运输,同时会使得桥塞运输到指定地点后的环境半径变大,避免光圈结构9在受力向外运动完成后仍不能起到桥塞的封堵作用。The inner diameter of the lower end surface of the upper vertebral body 8 and the inner diameter of the upper end surface of the lower vertebral body 11 are smaller than the inner diameter of the aperture structure 9 in the initial state. The upper and lower hollow circle surfaces of the aperture structure 9 are provided with thin metal sheets 19, which are used to fix the initial shape of the arc-shaped metal sheet 10 and prevent the upper and lower vertebral bodies from moving closer to the aperture structure 9 under axial force during the transportation of the bridge plug. , so that the aperture structure 9 is forced to expand outward in advance. The expanded part will affect the transportation of the bridge plug, and at the same time, it will increase the radius of the environment after the bridge plug is transported to the designated location, so as to prevent the aperture structure 9 from being unable to play the blocking role of the bridge plug after the outward movement under force is completed.

当上椎体8和下椎体11分别受到轴向力的作用向光圈结构9靠拢时,首先击碎金属薄片19,然后上下椎体的圆锥面推动内圆面向外扩张,弧形金属片10受力运动,滑轮装置开始沿着滑轨17运动,使弧形金属片10的外边缘沿着相邻弧形金属片10的外壁从外向内运动,每个弧形金属片10的运动轨迹都相同。最终形成的封堵状态的光圈结构9与初始状态的光圈结构9相比,相邻弧形金属片10的覆盖面积减小,内圆面的半径与上椎体8的上端面半径、下椎体11的下端面半径相同。When the upper vertebral body 8 and the lower vertebral body 11 are respectively subjected to the axial force and move closer to the aperture structure 9, the metal sheet 19 is first crushed, and then the conical surfaces of the upper and lower vertebral bodies push the inner circular surface to expand outward, and the arc-shaped metal sheet 10 Forced motion, pulley device starts to move along slide rail 17, makes the outer edge of arc-shaped metal sheet 10 move from outside to inside along the outer wall of adjacent arc-shaped metal sheet 10, and the trajectory of each arc-shaped metal sheet 10 is same. Compared with the aperture structure 9 of the initial state, the aperture structure 9 of the blocked state finally formed has a reduced coverage area of the adjacent arc-shaped metal sheet 10, and the radius of the inner circular surface is the same as the radius of the upper end surface of the upper vertebral body 8 and the radius of the lower vertebral body. The lower end faces of the bodies 11 have the same radius.

弧形金属片10的最外端设置有防漏橡胶条18,防漏橡胶条18与相邻弧形金属片10的外壁相接触。防漏橡胶条18覆盖在两片弧形金属片10的连接缝隙处,防止桥塞在工作环境中的溶液泄露进入相邻弧形金属片10的外壁与内壁之间,导致滑轮装置和滑轨17内存有泥沙,或提前腐蚀致使的光圈结构9失效。在光圈结构9进入封堵状态后,防漏橡胶条18能够封堵外圆面上的缝隙,加强桥塞的封堵效果。相比于现有的永久性桥塞,整个桥塞结构中仅存在防漏橡胶条18这一部分的不可溶解物质,减少桥塞溶解后的残余物量,更有利于施工的便利性。The outermost end of the arc-shaped metal sheet 10 is provided with a leak-proof rubber strip 18 , and the leak-proof rubber strip 18 is in contact with the outer wall of the adjacent arc-shaped metal sheet 10 . The leak-proof rubber strip 18 covers the connection gap between the two arc-shaped metal sheets 10 to prevent the solution of the bridge plug in the working environment from leaking into the space between the outer wall and the inner wall of the adjacent arc-shaped metal sheets 10, causing the pulley device and the slide rail to leak. 17 There is sediment in the memory, or the aperture structure 9 is invalid due to early corrosion. After the aperture structure 9 enters the sealing state, the anti-leakage rubber strip 18 can seal the gap on the outer circular surface and strengthen the sealing effect of the bridge plug. Compared with the existing permanent bridge plug, only the insoluble matter of the leak-proof rubber strip 18 exists in the entire bridge plug structure, which reduces the amount of residue after the bridge plug dissolves, and is more conducive to the convenience of construction.

最后应说明的是:以上实施例仅用以说明本发明的技术方案而非对其进行限制,尽管参照较佳实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对本发明的技术方案进行修改或者等同替换,而这些修改或者等同替换亦不能使修改后的技术方案脱离本发明技术方案的精神和范围。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: it still Modifications or equivalent replacements can be made to the technical solutions of the present invention, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present invention.

Claims (7)

1.一种光圈型可溶解桥塞,套设于管轴上,所述管轴套设于芯轴上,其特征在于:包括依次设置的上压环、上卡瓦组件、上卡瓦压台、第一压环、上椎体、光圈结构、下椎体、第二压环、下卡瓦压台、下卡瓦组件、下压环和定位推套,所述上椎体为圆锥面朝下的空心圆锥体,所述上椎体的底部伸入所述光圈结构内,所述下椎体为圆锥面朝上的空心圆锥体,所述下椎体的顶部伸入所述光圈结构内,所述光圈结构包括若干依次搭接的弧形金属片,所述弧形金属片的内壁中部设置有滑轮装置,相邻所述弧形金属片的外壁上设置有与所述滑轮装置相配合的滑轨。1. A diaphragm-type dissolvable bridge plug, which is sleeved on a tube shaft, and the tube shaft is sleeved on a mandrel, and is characterized in that it includes an upper pressure ring, an upper slip assembly, and an upper slip pressure ring arranged in sequence. Platform, first pressure ring, upper cone, aperture structure, lower cone, second pressure ring, lower slip press table, lower slip assembly, lower pressure ring and positioning push sleeve, the upper cone is a conical surface Downward hollow cone, the bottom of the upper cone extends into the aperture structure, the lower cone is a hollow cone facing upward, and the top of the lower cone extends into the aperture structure Inside, the aperture structure includes a number of arc-shaped metal sheets overlapped one after another, a pulley device is provided on the middle part of the inner wall of the arc-shaped metal sheet, and a pulley device corresponding to the pulley device is arranged on the outer wall of the adjacent arc-shaped metal sheet. Fitting rails. 2.根据权利要求1所述的一种光圈型可溶解桥塞,其特征在于:所述上压环的顶部设置有挤压凸台,所述上压环固定在所述上卡瓦组件的顶端,所述上卡瓦压台的顶端伸入所述上卡瓦组件与所述管轴之间。2. A diaphragm type dissolvable bridge plug according to claim 1, characterized in that: the top of the upper pressure ring is provided with an extrusion boss, and the upper pressure ring is fixed on the top of the upper slip assembly. The top end, the top end of the upper slip pressing table protrudes between the upper slip assembly and the pipe shaft. 3.根据权利要求2所述的一种光圈型可溶解桥塞,其特征在于:所述定位推套与所述下压环固定连接,所述下压环与所述下卡瓦组件固定连接,所述下卡瓦压台的底端伸入所述下卡瓦组件与所述管轴之间。3. A diaphragm type dissolvable bridge plug according to claim 2, characterized in that: the positioning push sleeve is fixedly connected to the lower pressure ring, and the lower pressure ring is fixedly connected to the lower slip assembly , the bottom end of the lower slip pressing table extends into between the lower slip assembly and the pipe shaft. 4.根据权利要求3所述的一种光圈型可溶解桥塞,其特征在于:所述上卡瓦压台与所述第一压环相连接,所述第一压环的下端面与所述上椎体的上端面相接触,所述下卡瓦压台与所述第二压环相连接,所述第二压环的上端面与所述下椎体的下端面相接触。4. A diaphragm-type dissolvable bridge plug according to claim 3, characterized in that: the upper slip pressure table is connected to the first pressure ring, and the lower end surface of the first pressure ring is connected to the first pressure ring. The upper end surface of the upper vertebral body is in contact, the lower slip pressure table is connected with the second pressure ring, and the upper end surface of the second pressure ring is in contact with the lower end surface of the lower vertebral body. 5.根据权利要求4所述的一种光圈型可溶解桥塞,其特征在于:所述管轴的半径小于所述上椎体的下端面内径和所述下椎体的上端面内径,所述上椎体的下端面内径和所述下椎体的上端面内径小于所述光圈结构的初始状态内径。5. A diaphragm type dissolvable bridge plug according to claim 4, characterized in that: the radius of the tube axis is smaller than the inner diameter of the lower end surface of the upper vertebral body and the inner diameter of the upper end surface of the lower vertebral body, so The inner diameter of the lower end surface of the upper pyramidal body and the inner diameter of the upper end surface of the lower pyramidal body are smaller than the inner diameter of the initial state of the aperture structure. 6.根据权利要求1所述的一种光圈型可溶解桥塞,其特征在于:所述弧形金属片的最外端设置有防漏橡胶条,所述防漏橡胶条与相邻所述弧形金属片的外壁相接触。6. A diaphragm-type dissolvable bridge plug according to claim 1, characterized in that: the outermost end of the arc-shaped metal sheet is provided with a leak-proof rubber strip, and the leak-proof rubber strip is adjacent to the The outer walls of the arc-shaped metal sheets are in contact. 7.根据权利要求6所述的一种光圈型可溶解桥塞,其特征在于:所述光圈结构的上表面和下表面中央分别设置有金属薄片。7 . The aperture-type dissolvable bridge plug according to claim 6 , wherein a thin metal sheet is respectively arranged in the center of the upper surface and the lower surface of the aperture structure. 8 .
CN202310224632.5A 2023-03-10 2023-03-10 Aperture type dissolvable bridge plug Active CN115949370B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310224632.5A CN115949370B (en) 2023-03-10 2023-03-10 Aperture type dissolvable bridge plug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310224632.5A CN115949370B (en) 2023-03-10 2023-03-10 Aperture type dissolvable bridge plug

Publications (2)

Publication Number Publication Date
CN115949370A true CN115949370A (en) 2023-04-11
CN115949370B CN115949370B (en) 2023-06-16

Family

ID=85891221

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310224632.5A Active CN115949370B (en) 2023-03-10 2023-03-10 Aperture type dissolvable bridge plug

Country Status (1)

Country Link
CN (1) CN115949370B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116771302A (en) * 2023-08-17 2023-09-19 太原科技大学 Umbrella-shaped expansion type bridge plug with plugging structure
CN116856881A (en) * 2023-09-04 2023-10-10 太原科技大学 An embedded blocking structure bridge plug and its setting method

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9708261D0 (en) * 1996-05-01 1997-06-18 Petroleum Eng Services Packer
AU2003200244B2 (en) * 1998-05-08 2004-03-25 Baker Hughes Incorporated Removable bridge plug or packer
CN2740770Y (en) * 2004-07-28 2005-11-16 河南康华机电仪器设备有限公司 Automatic compensation low-temperature setting thermal recovery packer
CN105889540A (en) * 2016-06-03 2016-08-24 中国石油天然气股份有限公司 Fireflood well control gas regulating valve
CN110640023A (en) * 2019-10-14 2020-01-03 杨晓东 Thrust bearing seat stamping die
NO20181510A1 (en) * 2018-11-23 2020-05-25 Archer Oiltools As Mechanical Casing Annulus Packer
CN111441741A (en) * 2020-05-08 2020-07-24 中国石油天然气集团有限公司 Soluble pumpable open type temporary bridge plug tool and use method thereof
CN214424469U (en) * 2021-03-04 2021-10-19 大庆市亚盛油田技术开发有限公司 Drillable squeeze bridge plug setting tool
CN114991709A (en) * 2022-06-29 2022-09-02 太原科技大学 Simple bridge plug for energy mining
CN115182702A (en) * 2022-07-07 2022-10-14 太原科技大学 Degradable bidirectional slip pressure abutment bridge plug

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9708261D0 (en) * 1996-05-01 1997-06-18 Petroleum Eng Services Packer
AU2003200244B2 (en) * 1998-05-08 2004-03-25 Baker Hughes Incorporated Removable bridge plug or packer
CN2740770Y (en) * 2004-07-28 2005-11-16 河南康华机电仪器设备有限公司 Automatic compensation low-temperature setting thermal recovery packer
CN105889540A (en) * 2016-06-03 2016-08-24 中国石油天然气股份有限公司 Fireflood well control gas regulating valve
NO20181510A1 (en) * 2018-11-23 2020-05-25 Archer Oiltools As Mechanical Casing Annulus Packer
CN110640023A (en) * 2019-10-14 2020-01-03 杨晓东 Thrust bearing seat stamping die
CN111441741A (en) * 2020-05-08 2020-07-24 中国石油天然气集团有限公司 Soluble pumpable open type temporary bridge plug tool and use method thereof
CN214424469U (en) * 2021-03-04 2021-10-19 大庆市亚盛油田技术开发有限公司 Drillable squeeze bridge plug setting tool
CN114991709A (en) * 2022-06-29 2022-09-02 太原科技大学 Simple bridge plug for energy mining
CN115182702A (en) * 2022-07-07 2022-10-14 太原科技大学 Degradable bidirectional slip pressure abutment bridge plug

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
宋志同;桂文宇;李义;韦钦杰;修宏;: "超高温高压深井双机械桥塞施工问题分析", 中国石油和化工标准与质量, no. 02 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116771302A (en) * 2023-08-17 2023-09-19 太原科技大学 Umbrella-shaped expansion type bridge plug with plugging structure
CN116771302B (en) * 2023-08-17 2023-10-27 太原科技大学 Umbrella-shaped expansion type bridge plug with plugging structure
CN116856881A (en) * 2023-09-04 2023-10-10 太原科技大学 An embedded blocking structure bridge plug and its setting method
CN116856881B (en) * 2023-09-04 2023-11-17 太原科技大学 Bridge plug with embedded plugging structure and bridge plug setting method thereof

Also Published As

Publication number Publication date
CN115949370B (en) 2023-06-16

Similar Documents

Publication Publication Date Title
CN115949370B (en) Aperture type dissolvable bridge plug
US10119357B2 (en) Tubular element with dynamic sealing and method for applying same against the wall of a wellbore
CN115182702B (en) A degradable two-way slip press platform bridge plug
US11499390B2 (en) Sealing assembly for dissolvable bridge plug, a dissolvable bridge plug and a sealing method for gap
CN116084879B (en) Tail pipe suspension packer with anti-impact function for well cementation
CN114991709B (en) Simple bridge plug for energy mining
CN110439491A (en) Packer expanding expandable casing patching tool
CN114482910B (en) A packer rubber cylinder and packer
CN207005560U (en) A kind of plugging device and plugging external member
CN206376808U (en) Well completion open hole packer
CN107965628A (en) A kind of pipeline self-sealing socket interface
WO2018218846A1 (en) Pumping and oil suction type petroleum packer
CN107503701A (en) A kind of casing damaged well light-wall pipe patch device
CN117662885B (en) A pipe connector convenient for quick disassembly and installation
CN105221874B (en) Full-bore inputting type pipe joint
CN114635665B (en) An oil drilling plugging device
CN214037221U (en) Thin-wall stainless steel corrugated pipe
CN204627520U (en) Packer (CN)
CN117072771A (en) Spliced cement pipe lining structure and installation method thereof
CN212003112U (en) Underhole packer capable of being unsealed
CN2588045Y (en) Wedging in type packer
CN207848683U (en) A kind of pipeline self-sealing socket interface
CN219119210U (en) Sealing rubber sleeve for oil-gas well
CN219221543U (en) Butt joint device for pipeline construction
CN221665543U (en) Pipeline restoration micro-jacking pipe

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20231212

Address after: 710000, No. 9 Miqin Road, Baqiao District, Xi'an City, Shaanxi Province

Patentee after: XI'AN YUXING PETROLEUM MACHINERY OF NEW TECHNOLOGY DEVELOPMENT Co.,Ltd.

Address before: No.13, 3rd floor, building 1, No.1, Tidu street, Qingyang District, Chengdu, Sichuan 610000

Patentee before: Chengdu yishenrui Technology Co.,Ltd.

Effective date of registration: 20231212

Address after: No.13, 3rd floor, building 1, No.1, Tidu street, Qingyang District, Chengdu, Sichuan 610000

Patentee after: Chengdu yishenrui Technology Co.,Ltd.

Address before: 030024 Shanxi province Taiyuan city Berlin District Wan wa flow Road No. 66

Patentee before: TAIYUAN University OF SCIENCE AND TECHNOLOGY

TR01 Transfer of patent right