• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    FILLING DEVICE The present invention is related to a filling device (1), comprising a packer-type device (4) (expandable cylindrical tool for isolating an area) for airtight pressure sealing of a pipe. The packer-type device (4) comprises a conical device (10), comprising a first cone (12) and a second cone (14), each having its base facing each other relatively, and each comprising a conical surface (12a , 14a). A first packer support device (20) is provided on a first side of the conical device (10), a second packer support device (22) is provided on a second side of the conical device (10), and a body of packer (50) is provided between the first packer support device (20) and the second packer support device (22). The first and second packer support devices (20, 22) comprise support arms (24), having a first end (24a) movably connected to the obturator (1), and a second end (24b) connected to a front support element (30) or a rear support element (40). A sliding surface is provided on the first and second packer support devices (20, 22), to slide the conical surface (12a, 14a) of the first or second (...) up and down.
    公开号:BR112013014902B1
    申请号:R112013014902-7
    申请日:2011-11-21
    公开日:2020-07-21
    发明作者:Hiorth Espen；Georgsen Steinar；Malvik Christian
    申请人:Interwell Technology As；
    IPC主号:
    专利说明:

    [0001] The present invention relates to a closure device. Background of the Invention
    [0002] Several types of filling devices for sealing hydrocarbon well pipes are already known. U.S. Patent No. 7,178,602 discloses a obturator having an anchoring device with compression elements for attaching the obturator to the inner casing of the well pipe, to prevent movement of said obturator. The filling device also comprises an expandable packer element (expandable cylindrical tool for isolating an area) for sealing the well pipe. The packer element is supported by a coupling connection to compress and thereby expand the packer element radially.
    [0003] Another closure device is known from U.S. Patent No. 7,290,603. In that case, an expandable packer element is axially compressed by means of two pressure rings, thereby providing radial expansion of the packer element. In addition, radially expandable ring elements are provided in order to improve the support of the packer element in the expanded position.
    [0004] A so-called high-expansion obturator has a relatively narrow diameter in the retracted state, allowing the obturator to pass through restrictions in the well piping. At the same time, such a device has a relatively large diameter in the expanded state, to promote sealing in the well pipe.
    [0005] In some subsea pipelines for hydrocarbon wells, there is a need for filling devices that can withstand high pressures and high temperatures for a long period of time. This binds a large amount of tension to the packer element that is being compressed during the sealing period.
    [0006] In addition, it is a requirement that the filling device be recoverable from the well after use. There is often a risk that the packer element will become deformed during expansion, which can cause problems with the recovery of the obturator when passing through the tight restrictions in the well piping.
    [0007] Thus, the aim of the invention is to provide a filling device that is capable of withstanding high pressure and high temperature for a long period of time, and yet capable of being retracted after use. Summary of the Invention
    [0008] - um dispositivo cônico, compreendendo um primeiro elemento de cone e um segundo elemento de cone, cada qual tendo sua base se defrontando relativamente entre si, e cada qual compreendendo uma superfície cônica; - um primeiro dispositivo de suporte de packer provido em um primeiro lado do dispositivo cônico; - um segundo dispositivo de suporte de packer provido em um segundo lado do dispositivo cônico; - um corpo de packer provido entre o primeiro dispositivo de suporte de packer e o segundo dispositivo de suporte de packer; - em que os primeiro e segundo dispositivos de suporte de packer compreendem braços de suporte, tendo uma primeira extremidade conectada de modo móvel ao dispositivo de obturação, e uma segunda extremidade conectada a um elemento de suporte frontal ou a um elemento de suporte traseiro; - uma superfície deslizante é provida sobre os primeiro e segundo dispositivos de suporte de packer, para deslizar para cima e para baixo a superfície cônica dos primeiro ou segundo elementos de cone, desse modo, proporcionando o dispositivo de packer, respectivamente, entre suas posições expandidas e retraídas; - e em que os elementos de suporte frontais e os elementos de suporte traseiros compreendem superfícies frontais, onde as superfícies frontais se defrontam na direção da base dos primeiro e segundo elementos de cone na posição retraída, e proporcionam uma superfície barreira de extrusão para o corpo de packer na posição expandida. The present invention is related to a obturation device, comprising a packer-type device for sealing pressure in a pipe, the packer-type device comprising: - a conical device, comprising a first cone element and a second cone element, each having its base facing each other relatively, and each comprising a conical surface; - a first packer support device provided on a first side of the conical device; - a second packer support device provided on a second side of the conical device; - a packer body provided between the first packer support device and the second packer support device; - wherein the first and second packer support devices comprise support arms, having a first end movably connected to the obturator, and a second end connected to a front support element or a rear support element; - a sliding surface is provided on the first and second packer support devices, to slide the conical surface of the first or second cone elements up and down, thereby providing the packer device, respectively, between their expanded positions and retracted; - and where the front support elements and the rear support elements comprise front surfaces, where the front surfaces face towards the base of the first and second cone elements in the retracted position, and provide an extrusion barrier surface for the body packer in the expanded position.
    [0009] In one aspect, each second support arm is connected to the respective front support element, and each second support arm is connected to the respective rear support element.
    [0010] In one aspect, the second end of the support arms is pivotally connected to the respective front support element or to the respective rear support element.
    [0011] In one aspect, the sliding surface comprises a sliding surface provided on each front supporting element, and a sliding surface provided on each rear supporting element.
    [0012] In one aspect, the first and second packer support devices are designed so that each front surface of the front support elements of the first packer support device is faced towards the front surface of the rear support elements of the second support device. packer support, in the expanded position.
    [0013] In one aspect, a guiding system is provided to prevent relative rotation between the first and second packer support devices, during their movement between the retracted position and the expanded position.
    [0014] In one aspect, the packer body comprises packer elements provided on the front surface of each front support element.
    [0015] In one aspect, the front surface of the rear support element consists of rear support surfaces of two adjacent front support elements, both in the retracted and expanded position.
    [0016] In one aspect, the front surface of the rear support element is provided, at least partially, behind the rear surfaces of two adjacent front support elements, in the retracted position.
    [0017] In one aspect, the front surface of the front support elements is at least partially curved.
    [0018] In one aspect, a conical packer element is provided between the base of the first cone element and the base of the second cone element.
    [0019] In one aspect, a conical packer element is provided between the base of the first cone element and the base of the second cone element.
    [0020] In one aspect, the first cone element and the second cone element are displaceable in an axial direction relative to each other.
    [0021] In one aspect, a connection device is provided for radial orientation of the first cone element, in relation to the second cone element.
    [0022] In one aspect, the connecting device limits the axial displacement of the first cone element in relation to the second cone element.
    [0023] In one aspect, a retraction device is provided to bring the first and / or second packer support devices from the expanded position to the retracted position. Detailed Description of the Invention
    [0024] - as figuras 1 e 2 ilustram uma vista em perspectiva de uma modalidade de um dispositivo de obturação, respectivamente, na posição retraida e expandida; - as figuras 3 e 4 ilustram uma vista lateral do 20 dispositivo de packer mostrado na figura 1, respectivamente, na posição retraida e expandida; - as figuras 5 e 6 ilustram uma vista em perspectiva das partes do dispositivo de packer mostrado nas figuras 3 e 4, respectivamente; - a figura 7 ilustra uma vista lateral do dispositivo de packer na posição expandida; - a figura 8 ilustra um elemento de suporte frontal com um corpo de packer e um braço de suporte; - a figura 9 ilustra um elemento de suporte frontal 30 mostrado na figura 8, sem o corpo de packer; - a figura 10 ilustra o elemento de suporte traseiro e seu braço de suporte; - a figura 11 ilustra o elemento de suporte traseiro mostrado na figura 10; - a figura 12a ilustra a configuração dos elementos de suporte traseiros do primeiro dispositivo de suporte de packer, na posição retraída; - a figura 12b é similar à figura 12a, onde um elemento de 5 suporte frontal é provido; - a figura 12c é similar às figuras 12a e 12b, onde todos os elementos de suporte frontais são providos; - a figura 13a ilustra a configuração dos elementos de suporte traseiros do primeiro dispositivo de suporte de packer, na posição expandida; - a figura 13b é similar à figura 13a, onde um elemento de suporte frontal é provido; - a figura 13c é similar às figuras 13a e 13b, onde todos os elementos de suporte frontais são providos; - a figura 14 ilustra uma vista lateral de alguns dos elementos de suporte frontais e traseiro dos primeiro e segundo dispositivos de suporte de packer, na posição expandida; - a figura 15 ilustra uma vista em perspectiva de todos os 20 elementos de suporte frontais e traseiro dos primeiro e segundo dispositivos de suporte de packer, na posição expandida; - a figura 16 ilustra uma modalidade alternativa de um corpo de packer; e - a figura 17 ilustra uma modalidade alternativa de um elemento de suporte frontal, um braço de suporte e um corpo de packer. In the following, the modalities of the present invention will be described in greater detail, with reference to the attached drawings, in which: figures 1 and 2 illustrate a perspective view of an embodiment of a closure device, respectively, in the retracted and expanded position; figures 3 and 4 show a side view of the packer device shown in figure 1, respectively, in the retracted and expanded position; figures 5 and 6 show a perspective view of the parts of the packer device shown in figures 3 and 4, respectively; figure 7 shows a side view of the packer device in the expanded position; figure 8 shows a front support element with a packer body and a support arm; figure 9 shows a front support element 30 shown in figure 8, without the packer body; figure 10 illustrates the rear support element and its support arm; figure 11 shows the rear support element shown in figure 10; figure 12a shows the configuration of the rear support elements of the first packer support device, in the stowed position; figure 12b is similar to figure 12a, where an element with a frontal support is provided; figure 12c is similar to figures 12a and 12b, where all the front support elements are provided; figure 13a illustrates the configuration of the rear support elements of the first packer support device, in the expanded position; figure 13b is similar to figure 13a, where a front support element is provided; figure 13c is similar to figures 13a and 13b, where all the front support elements are provided; figure 14 shows a side view of some of the front and rear support elements of the first and second packer support devices, in the expanded position; figure 15 shows a perspective view of all 20 front and rear support elements of the first and second packer support devices, in the expanded position; figure 16 illustrates an alternative embodiment of a packer body; and figure 17 illustrates an alternative embodiment of a front support element, a support arm and a packer body.
    [0025] Now, reference is made to figures 1 and 2, illustrating a type of obturation device (1). The closure device (1) comprises an anchoring device (2), a connection interface (3) and a packer device (4).
    [0026] The anchoring device (2) comprises compression devices for attaching the closure device (1) to an internal wall of a pipe (not shown). It should be noted that the fluid is allowed to pass through the obturation device when the anchoring device (2) is active, that is, in its expanded state, as shown in figure 2. The anchoring device (2) is considered known for a person skilled in the art, such as, for example, from the aforementioned US Patent publication No. 7,178,602, and therefore will not be described in more detail here.
    [0027] The connection interface (3) is provided for connection to an adjustment tool, to bring the obturator from its retracted or "operational" position to its expanded or "established" position, and for connection to a recovery tool, for recovery of the obturator again after use. The connection interface (3), the adjustment tool and the recovery tool are also considered to be known to a person skilled in the art, so they will not be explained in more detail here.
    [0028] The packer device (4) is provided for airtight pressure sealing of the pipe. That is, no fluid is supposed to pass through the packer device (4), in the annular space between the outer surface of the filling device and the inner surface of the well pipe. It should be noted that the initial design requirement for the obturation device (1) is that it must pass through a restriction, with a machined internal diameter of 4.125 "(that is, in the retracted position), and must be arranged in a 7 "35 ppf housing. In addition, the packer device (4) according to the present invention is designed to withstand a pressure difference of 5000 psi, at a temperature of 170 ° C, in the adjusted position. Logically, this initial design requirement does not preclude the use of the principles of the invention, to design a filling device for other types of pipes, with other diameters, temperatures and pressures.
    [0029] Reference is now made to Figures 3 to 6. The packer device (4) comprises a tapered device (10), a first packer support device (20) provided on a first side of the tapered device (10), and a second packer support device (22) provided on a second side of the conical device (10), opposite the first side, in the longitudinal direction of the obturator device (1), as shown in figure 3.
    [0030] The conical device (10) comprises a first cone element (12) and a second cone element (14), each having its base (12b, 14b) facing each other relatively and each comprising a conical surface (12a, 14a). In figure 3 it can be seen that the base (12b) is parallel to the base (14b), and that the bases (12b, 14b) are both perpendicular to the longitudinal direction of the obturator. In figure 5, it is shown that the base (12b) of the first cone element (12) is circular. In the present invention, the conical surfaces (12a, 14a) are straight.
    [0031] In an alternative embodiment, it is possible to provide the cone elements (12, 14) with an increase in the conical surface or a decrease in the conical surface, that is, the conical surface will be curved.
    [0032] In the present embodiment, the first cone element (12) and the second cone element (14) are displaceable in an axial direction relative to each other. A conical packer element (15) is provided between the base of the first cone element (12) and the base of the second cone element (14). A connection device (16) is provided for radial orientation of the first cone element (12), in relation to the second cone element (14). The connecting device (16) limits the axial displacement of the first cone element (12) with respect to the second cone element (14).
    [0033] In the present embodiment, the connecting device (16) limits the maximum distance between the base of the first cone element (12) and the base of the second cone element (14). The compression of the conical packer element limits the minimum distance between the base of the first cone element (12) and the base of the second cone element (14). However, the connecting device (16) can also be used to limit the minimum distance between the base of the first cone element (12) and the base of the second cone element (14). In the present embodiment, the connection device (16) comprises at least one screw (see figure 7) or other types of connection means (16), well known to a person skilled in the art.
    [0034] The first and second packer support devices (20, 22) of the present embodiment are the same. Each of the first and second packer support devices comprises arms (24), which have a first end (24a) movably or pivotally connected to the obturator (1), and a second end (24b) connected movable or articulated mode to a front support element (30) or a rear support element (40). It should be noted that it may be possible to connect the second end (24b) of the arm (24) to the front support element (30), or to the rear support element (40) in a fixed manner, that is, said ends are not being mobile or articulated relative to each other.
    [0035] In figure 8, a support arm (24) is shown having its second end (24b) hingedly connected to a front support element (30). In figure 10 a support arm (24) is shown, having its second end (24b) hingedly connected to a rear support element (40).
    [0036] The support arm (24) can, for example, be similar to that described in U.S. Patent No. 7,178,602. Therefore, the support arms are considered known to a person skilled in the art, so they will not be described in more detail here. The support arms form a continuous external surface around the obturator in the retracted position, and during expansion to the expanded position, thereby preventing debris in the well flow from blocking the expansion / retraction process. This can be seen, for example, in figures 5 and 6.
    [0037] The articulation of the support arm (24) with respect to the obturation device (1) and the front and rear support element (30) or (40) can be provided by means of an articulation pin or any other suitable articulation mechanism, or by a movable mechanism that allows the support arm (24) to move radially out of the obturator (1).
    [0038] A sliding surface is provided on the first and second packer support devices (20, 22). The sliding surface can comprise several sliding surfaces, which can be provided on the front support element (30) and / or the rear support element (40). Alternatively, the sliding surfaces can be provided on other parts of the first and second packer support devices (20, 22), for example, as a part of the support arms (24).
    [0039] The sliding surface on the first and second packer support device (20, 22) is provided to slide up and down the conical surface (12a, 14a) of the first or second cone element, that is, the sliding surface and the conical surfaces cause an axial movement of the first and second packer support devices (20, 22) to cause a radial movement of the front support elements (30) and the rear support elements (40).
    [0040] The front support element (30) will now be described with reference to figure 9. The support element (30) comprises a sliding surface (31) for sliding up and down the tapered surface (12a, 14a) of the first or second cone element, depending on whether the front support element (30) forms part of the first or second packer support device (20) or (22), respectively.
    [0041] The front support element (30) further comprises a front surface (32) for supporting a packer body, generally indicated by the numerical reference (50). The front surface (32) faces towards the base of the first and second cone elements (12, 14), for example, as shown in figure 5, in the retracted position. In the present embodiment, the front surface (32) 20 is substantially parallel to the base of the first and second cone elements (12, 14), both in the retracted and the expanded position. Consequently, the front surface (32) is also faced in the direction of the plane formed by the base of the first and second cone elements (12, 14), as shown in figure 6, in the expanded position. More specifically, the front surface (32) of the first packer support device (20) faces towards the plane formed by the base of the second cone element (14), and the front surfaces (32) of the second support device packer (22) are faced in the direction of the plane formed by the base of the first cone (12), both surfaces in the retracted and expanded position. In the present embodiment, since the conical surface (12a, 14a) of the cone elements is straight, the front surface (32) is always perpendicular to the longitudinal direction of the obturation device, that is, during retraction and expansion. The front surface (32) is at least partially curved.
    [0042] The front support element (30) also comprises an external radial surface (33). The outer radial surface (33) is curved, the curve preferably having a radius (R) (see figure 13C) that corresponds to the radius of the casing of the established closure device.
    [0043] The front support element (30) also comprises a rear surface (34), provided on the rear side of the front surface (32). The rear surface (34) is substantially flat. A support body (35) is provided on the rear surface (34). When viewed from above in figure 9, the support body (35) is substantially T-shaped, having a rod (35a) and a crossbar (35b). A connection interface (36) for hinged connection to the support arm (24) is provided as a part of the crossbar (35b) (see, for example, figure 14).
    [0044] The rear support element (40) will now be described with reference to figure 11. The rear support element (40) also comprises a sliding surface (41) for sliding up and down the conical surface (12a, 14a) of the first or second cone element, depending on whether the rear support element (40) forms part of the first or second packer support device (30) or (22), respectively.
    [0045] In addition, the rear support element (40) further comprises a substantially flat front surface (42). The front surface (42) is provided to support the rear surface (34) on the front support element (30), in the retracted and expanded position.
    [0046] The rear surface (42) is also facing towards the base of the first and second cone elements (12, 14), for example, as shown in figure 5, in the retracted position. In the present embodiment, the rear surface (42) is substantially parallel to the base of the first and second cone elements (12, 14), both in the retracted and the expanded position. Consequently, the rear surface (42) is also faced in the direction of the plane formed by the base of the first and second cone elements (12, 14), in the expanded position, as shown in figure 6. More specifically, the rear surface (42) of the first packer support device (20) is faced in the direction of the plane formed by the base of the second cone element (14), and the front surfaces (32) of the second packer support device (22) are faced in the direction of the plane formed by the base of the first cone (12), both surfaces in the retracted and expanded position. In the present embodiment, since the conical surface (12a, 14a) of the cone elements is straight, the rear surface (42) is always perpendicular to the longitudinal direction of the obturation device, that is, during retraction and expansion.
    [0047] The rear support element (40) also comprises an outer radial surface (43). The outer radial surface (43) is curved, the curve preferably having a radius (R) (see figure 13C) that corresponds to the radius of the casing of the established closure device. Consequently, in the expanded position shown in figure 13c, the front and rear support elements (30, 40) form a "toroid" type body, having a circular outer radial surface.
    [0048] The rear support element (40) also comprises a rear surface (44) provided on the rear side of the front surface (42). A support body (45) is provided on the rear surface (44). A connection interface (46) for an articulated connection to the support arm (24) is provided on the rear surface (44 (see, for example, figure 14).
    [0049] Reference is now made to Figures 12a-12c and Figures 13a-13c. In figure 12a it is shown that nine rear support elements (40) provide a "toroid" ring when arranged close together. In addition, the sliding surfaces (41) of the rear support elements (40) can provide a continuous contact surface towards the cone elements (12) or (14). In the arrangement shown in figure 12a, it is shown that a slot (49) is formed between two adjacent rear support elements (40). The shape of the slot (49) between said rear support elements (40) is designed to receive the rod (35a) of the front support element (30), as shown in figure 12b.
    [0050] In figure 12c, all nine slits (49) received a front support element (30). In that case, it is shown that the front surface (42) of a rear support element (40) is provided, at least partially, behind the rear surfaces (34) of two adjacent front support elements (30), in the retracted position . The front surfaces (42) of the rear support elements (40) provide support for the rear surfaces (34) of the front support elements (30) in the stowed position.
    [0051] In figure 12c, it is shown that the sliding surfaces (31) of the front support elements (30) can form a substantially continuous contact surface towards the cone elements (12) or (14).
    [0052] In the expanded position shown in figure 13a, the distance between the rear support elements (40) increases as they slide over the conical surface of the cone elements (12) or (14). As shown in figures 13b and 13c, there is still contact between the front surfaces (42) of the rear support elements (40) and the rear surfaces (34) of the front support elements (30), in the expanded position. It should be noted that, when joined together, the sliding surfaces (31) and (41) of the front and rear support elements (30, 40) can provide a substantially continuous surface towards the cone elements (12) or (14), in the expanded position, as shown in figure 13c, through the dashed line "A".
    [0053] In addition, the outer radial surfaces (33, 43) of the front and rear support elements (30) and (40) together form a substantially continuous outer radial surface, as shown in figure 13c, through the dashed line "B".
    [0054] From figures 5 and 6 it is evident that each second support arm (24) of the first support device (20) is articulated to the respective front support elements (30) and that each second support arm (24) is articulated to the respective rear support elements (40). This is also true for the second support device (22).
    [0055] Reference will now be made to Figures 14 and 15. In this case, it is shown that the first and second packer support devices (20, 22) are designed so that each front surface (32) of the front support elements (30 ) of the first packer support device (20) is faced towards a front surface (42) of the rear support elements (40) of the second packer support device (22), in the expanded position. Consequently, each front surface (32) of the front support elements (30) of the second packer support device (22) is faced towards a front surface (42) of the rear support elements (40) of the first support device of packer (20), in the expanded position.
    [0056] In figure 14, it is shown that the dashed straight line "D" is moving through the center of the front surface (32) of the front support element (30) and the center of the front surface (42) of the rear support element (40) ).
    [0057] In the first embodiment shown in figures 3-8, the packer body (50) comprises packer elements (50a) provided on the front surface (32) of each front support element (30). The packer element (50a) is made of a ductile material, such as an elastomeric material and / or a rubber material, etc., which can withstand the pressure and temperature required by the well pipe being sealed. The packer element (50a) can be molded on the front support element (30). In the present embodiment, the inner radial part (51) of each packer element (50a) protrudes in an axial direction in relation to the outer radial part (52) (see figure 8). In this way, the inner radial part (51) will be pressed downwards in the direction of the conical device, in the expanded position.
    [0058] The obturator can be provided with a guide system to prevent relative rotation between the first and second packer support devices (20, 22), during the expansion and retraction steps. Figure 7 shows a guide pin (28) provided in a guide slot (not shown), preventing the relative rotation between the first and second packer support devices (20, 22).
    [0059] The operation of the packer device (4) will now be described. The packer device (4) is initially in its stowed position. A retraction device (60) (see figure 7), for example, a spring, etc., can be provided to bring the first and second packer support devices (20, 22) back to their retracted position. The retraction device (60) is at one end fixed to the support arm (24) and at the other end to the respective first or second part of the obturator, as shown in figure 7. It should be noted that the packer element ( 50a) is not tensioned in the stowed position.
    [0060] To bring the packer device to its expanded position, a first part (la) of the obturator (1) is pressed towards a second part (lb) of the obturator (see figure 7), as is known expert in the art. The guide system prevents a relative rotation between the first part (la) and the second part (lb). Consequently, the sliding surfaces (31, 41) of the front and rear support elements (30, 40) begin to slide over the conical surfaces (12a, 14a) of the cone elements (12, 14), as they articulate in relation to the support arms (24).
    [0061] In the expanded position, the packer element (50a) is pressed between the front surface (32) of the front support elements (30) and the front surface (42) of the rear support elements (40). Consequently, the front surface (42) of the rear support element (40) is designed to support a packer element (50a) of the opposite packer support device (20, 22) when in the expanded position.
    [0062] As shown in figure 4, the packer elements (50a) form a continuous packer means around the packer device (4), where each second packer element (50a) is attached to the first packer support device (20) , and each second packer element (50a) is attached to the second packer support device (22).
    [0063] In figure 15 it is shown that the front surfaces (32, 42) when together have a shape similar to that of a circular ring. This circular surface forms an extrusion barrier surface for the packer body (50). The packer body (50) will form a seal on the pipe in the expanded position, and the extrusion barrier surface prevents extrusion of the packer body (50). In addition, the expansion will also cause the first cone element (12) to be displaced towards the second cone element (14), thereby providing compression and radial expansion of the conical packer element (15). Consequently, the conical packer element (15) will be pressed against the packer body (50), along its radial perimeter. Consequently, a continuous ductile seal is provided in the piping by the conical packer element (15) and the packer body (50).
    [0064] In figure 14, a central line between the front and rear support elements of the respective first and second support devices (20, 22) is illustrated by the dashed line "C". The curved shape of the front surface (32) of the front support elements (30) causes the opening for the packer body (50) between the first support device (20) and the second support device (22) to be approximately the same around the perimeter. Consequently, the tension on the packer body (50) is substantially similar around the perimeter.
    [0065] When the packer device (4) is retracted, the first part (la) of the obturator (1) is pulled from the second part (lb) of the obturator (1), as is well known to a skilled person in the technique. The sliding surfaces (31, 41) will now slide downward on the tapered surfaces of the cone elements (12, 14), due to the force applied by the retraction device (60), thereby pressing the support arms (24) radially inside. The first part (la) is pulled from the second part (lb) until the maximum distance between the base of the first cone (12) and the base of the second cone (14) is reached, due to the connection device (16). Thus, the filling device (1) has reached the stowed position and can now be recovered from the well pipe.
    [0066] In the first embodiment described above, the packer body (50) consisted of several packer elements (50a). However, in a second embodiment, the packer body (50) can be provided as a single packer element (50b). In figure 16, an embodiment of this packer element (50b) is illustrated. The packer element (50b) comprises a continuous packer means, which is folded to allow it to expand and retract. The packer element (50b) comprises nine folds (53), which can be attached to the respective nine front support elements (30) of one of the packer support devices (20, 22). In yet an alternative embodiment, the packer body (50) can comprise two or more of these packer elements (50b), each fixed to each other and / or to the front support elements (30) of the first and second support devices. packer (20, 22), respectively.
    [0067] Another embodiment is illustrated in figure 17. In this case, the packer body (50) comprises several packer elements (50c). The packer elements (50c), like the packer elements (50a) described above, are made of a ductile material. However, in this embodiment, each packer element (50c) is connected to the front surface (32) of the front support element (30) by means of a sliding joint (54). The packer element (50c) is also provided with parts (55) of a deformable plastic material, that is, a material more rigid than the ductile material. As shown in figure 17, the part of the packer element (50c) that forms the seamed joint is made of deformable plastic material. The seamed joint (54) allows the packer element (50c) to slide radially towards the inner surface of the pipe, in the expanded position, to improve the seal in cases where the pipe has been deformed. The seamed joint (54) comprises stop means to limit the radial movement of the packer element (50c), in relation to the front support element (30).
    [0068] Although the above description has focused on a filling device for hydrocarbon well pipes, it should be noted that the filling devices can also be used to seal other types of pipes, for example, water pipes, etc.
    权利要求:
    Claims (15)
    [0001]
    Blanking device (1), comprising a packer-type device (4) for airtight pressure sealing in a pipe, the packer-type device (4) comprising: - a conical device (10), comprising a first cone element (12) and a second cone element (14), each having its base facing each other relatively, and each comprising a conical surface (12a, 14a) ; - a first packer support device (20) provided on a first side of the conical device (10); - a second packer support device (22) provided on a second side of the conical device (10); - a packer body (50) provided between the first packer support device (20) and the second packer support device (22), where the first and second packer support devices (20, 22) comprise arms support (24), having a first end (24a) movably connected to the closure device (1), and a second end (24b), a sliding surface being provided over the first and second packer support devices (20, 22), to slide the conical surface (12a, 14a) of the first or second cone elements (12, 14) up and down, thereby providing the packer device (4) between its expanded and retracted position, respectively, characterized by the fact that the second movable end (24b) is connected to a front support element (30) or to a rear support element (40); where the front support elements (30) and the rear support elements (40) comprise front surfaces (32, 42), where the front surfaces (32, 42) face towards the base of the first and second cone elements ( 12, 14) in the stowed position, and provide an extrusion barrier surface for the packer body (50) in the expanded position.
    [0002]
    Blanking device according to claim 1, characterized by the fact that each second support arm (24) is connected to the respective front support element (30), and each second support arm (24) is connected to the respective element rear support bracket (40).
    [0003]
    Blanking device according to claim 1 or 2, characterized in that the second end (24b) of the support arms (24) is pivotally connected to the respective front support element (30) or to the respective rear support element (40).
    [0004]
    Blanking device according to claim 1, characterized in that the sliding surface comprises a sliding surface (31) provided in each front support element (30), and a sliding surface (41) provided in each support element rear (40).
    [0005]
    Blanking device according to claim 1, characterized in that the first and second packer support devices (20, 22) are designed so that each front surface (32) of the front support elements (30) the first packer support device (20) is facing towards the front surface (42) of the rear support elements (40) of the second packer support device (22), in the expanded position.
    [0006]
    Blanking device according to claim 5, characterized by the fact that a guide system is provided to prevent the relative rotation between the first and second packer support devices (20, 22), during their movement between the retracted position and the expanded position.
    [0007]
    Blanking device according to claim 1, characterized in that the packer body (50) comprises packer elements (50a; 50c), provided on the front surface (30) of each front support element (30).
    [0008]
    Blanking device according to claim 2, characterized in that the front surface (42) of the rear support element (40) consists of rear support surfaces (34) of two adjacent front support elements (30) , both in the stowed and expanded position.
    [0009]
    Blanking device according to claim 8, characterized in that the front surface (42) of the rear support element (40) is provided, at least partially, behind the rear surfaces (34) of two front support elements adjacent (30), in the stowed position.
    [0010]
    Blanking device according to claim 1, characterized in that the front surface (32) of the front support elements (30) is at least partially curved.
    [0011]
    Blanking device according to claim 1, characterized in that a conical packer element (15) is provided between the base of the first cone element (12) and the base of the second cone element (14).
    [0012]
    Blanking device according to claim 11, characterized in that the first cone element (12) and the second cone element (14) are displaceable in an axial direction relative to each other.
    [0013]
    Blanking device according to claim 11 or 12, characterized in that a connection device (16) is provided for radial orientation of the first cone element (12), in relation to the second cone element (14).
    [0014]
    Blanking device according to claim 13, characterized in that the connecting device (16) limits the axial displacement of the first cone element (12) in relation to the second cone element (14).
    [0015]
    Blanking device according to claim 1, characterized in that a retraction device (60) is provided to bring the first and / or second packer support devices (20, 22) from the expanded position to the retracted position .
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112013014902B1|2020-07-21|shutter device
    BR112013012492B1|2020-10-27|anti-extrusion support system and method to operate within a tubular
    US10570693B2|2020-02-25|Apparatus for use in a fluid conduit
    BRPI1100651B1|2020-10-20|wellhead assembly with a geometric axis and method for installing a wellhead assembly
    US7963321B2|2011-06-21|Swellable downhole packer
    BR112013003448B1|2020-03-03|High expansion retractable plug for underground use
    BRPI0610474A2|2012-10-30|annular shutter device
    BR112013017077B1|2021-06-01|OIL FIELD TOOL SET FOR WELLBOARD, WELLBOARD ADJUSTMENT TOOL AND METHOD FOR PLACING A COATING INSIDE A WRAP
    BRPI0823404A2|2013-07-30|void seal assembly and subsea completion set
    BR112013021226A2|2020-11-24|device for downhole use and downhole operations method
    BR112013031067B1|2020-12-22|support device to prevent extrusion
    BRPI0409299B1|2015-09-01|Pump cap for drainage line operations
    ES2644694T3|2017-11-30|Apparatus for blocking the flow of fluid in a pipe
    CA2667937A1|2008-05-15|Improved sealing apparatus
    US10253592B2|2019-04-09|Anti-extrusion barrier for packing element
    BR112015001715B1|2021-08-31|TAPPING DEVICE
    US10648277B2|2020-05-12|Supporting device for a sealing element in well plug
    BR112015019594B1|2021-07-20|MILLING TAPPING DEVICE
    BR112020009903A2|2020-10-13|well tool device comprising a ratchet system
    WO2015089374A1|2015-06-18|Anti-creep rings and configurations for single packers
    BR112020024913A2|2021-03-09|ANNULAR BARRIER
    BRPI0820161B1|2019-01-08|apparatus for sealing a conduit and method for fitting an apparatus into a conduit
    BRPI0708830B1|2017-09-05|SHUTTER FOR A WELL, METHOD OF PROVIDING A CONDUCT AND TOOL TO PUSH ON THE SURFACE OF A NON-CIRCULAR WELL
    同族专利:
    公开号 | 公开日
    WO2012079914A3|2013-01-10|
    MX2013006685A|2013-10-01|
    US20130319654A1|2013-12-05|
    WO2012079913A2|2012-06-21|
    MX354362B|2018-02-28|
    MX2013006684A|2013-10-01|
    WO2012079913A3|2013-01-10|
    DK2652242T3|2015-02-23|
    DK2652243T3|2014-12-15|
    BR112013014901A2|2016-09-13|
    EP2652242B1|2014-11-12|
    EP2652242A2|2013-10-23|
    EP2652243A2|2013-10-23|
    NO20101759A1|2012-06-18|
    BR112013014902A2|2016-09-13|
    NO338096B1|2016-08-01|
    EP2652243B1|2014-09-10|
    MX357662B|2018-07-18|
    WO2012079914A2|2012-06-21|
    NO332116B1|2012-06-25|
    US9291028B2|2016-03-22|
    US20130333875A1|2013-12-19|
    NO20130830A1|2013-06-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2216336A|1939-07-15|1940-10-01|Lane Wells Co|Multiple ring packer|
    US3526278A|1968-04-16|1970-09-01|Byron Jackson Inc|High volume main valve for formation testers|
    US3526277A|1968-06-10|1970-09-01|Byron Jackson Inc|Well packer and anchor means therefor|
    US6354372B1|2000-01-13|2002-03-12|Carisella & Cook Ventures|Subterranean well tool and slip assembly|
    US6796376B2|2002-07-02|2004-09-28|Warren L. Frazier|Composite bridge plug system|
    US6827150B2|2002-10-09|2004-12-07|Weatherford/Lamb, Inc.|High expansion packer|
    NO318363B1|2003-04-02|2005-03-07|Bronnteknologiutvikling As|Device for drawable bridge plug|
    NO321083B3|2004-07-09|2010-02-15|Bronnteknologiutvikling As|Bronnplugg|
    US7779905B2|2007-02-27|2010-08-24|High Pressure Integrity, Inc.|Subterranean well tool including a locking seal healing system|
    US8678081B1|2008-08-15|2014-03-25|Exelis, Inc.|Combination anvil and coupler for bridge and fracture plugs|NO334009B1|2011-06-03|2013-11-18|Interwell Technology As|Plug device|
    NO338075B1|2012-07-26|2016-07-25|Interwell Technology As|Plug device|
    CN103774992B|2012-10-18|2016-01-06|中国石油化工股份有限公司|The drive unit of bloat tool under cased well|
    NO342655B1|2014-08-20|2018-06-25|E Holstad Holding As|Apparatus for sealing a bore, a system comprising the apparatus and a method of using the apparatus|
    NO341581B1|2015-09-17|2017-12-11|Interwell Technology As|Sealing device for a well plug|
    GB2560453B|2015-12-11|2021-08-04|Halliburton Energy Services Inc|Wellbore isolation device|
    CA3009582A1|2015-12-23|2017-06-29|Peak Well Systems Pty Ltd|Downhole apparatus and methods of use|
    GB201522725D0|2015-12-23|2016-02-03|Peak Well Systems Pty Ltd|Expanding and collapsing apparatus and methods of use|
    WO2017109508A1|2015-12-23|2017-06-29|Peak Well Systems Pty Ltd|Expanding and collapsing apparatus and methods of use|
    US11231077B2|2015-12-23|2022-01-25|Schlumberger Technology Corporation|Torque transfer apparatus and methods of use|
    GB2559109B|2016-11-09|2021-05-05|Peak Well Systems Pty Ltd|Expanding and collapsing apparatus and methods of use|
    GB201710367D0|2017-06-28|2017-08-09|Peak Well Systems Pty Ltd|Seal apparatus and methods of use|
    NO343440B1|2017-07-05|2019-03-11|Interwell Norway As|Well tool and method for pressure testing of different zones in a well|
    WO2021003415A1|2019-07-02|2021-01-07|Schlumberger Technology Corporation|Expanding and collapsing apparatus with seal pressure equalization|
    CN112814610B|2021-01-05|2021-12-21|山东健源石油工程技术有限公司|Expanding packer|
    法律状态:
    2018-12-18| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-08-20| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-04-14| B09A| Decision: intention to grant|
    2020-07-21| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 21/11/2011, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    NO20101759A|NO332116B1|2010-12-15|2010-12-15|Plug device|
    NO20101759|2010-12-15|
    PCT/EP2011/070527|WO2012079913A2|2010-12-15|2011-11-21|Plugging device|
    [返回顶部]