Slip installation tool and installation method

Abstract

The present invention provides a cava installation tool and an installation method. The cava installation tool includes a center rod, a plurality of cava installation blocks and an expansion unit. The expansion unit includes a connecting rod driving component and two groups of connecting rod components hinged to each other. The connecting rod driving component is axially movably mounted on the center rod; one of the two groups of connecting rod components is hinged to the connecting rod driving component, and the other is hinged to the center rod; the cava installation block is rotatably installed at the hinge position of the two groups of connecting rod components. The cava installation method includes: fixing the cava on the cava installation block, and driving the connecting rod driving component to move axially along the center rod until the cava expands outward to a preset installation position; inserting the cava into the cava support sleeve in turn, adjusting the inclination angle of the cava installation block until the cava is parallel to the center rod; placing the cava into the guide groove of the cone sleeve to complete the cava installation. The present invention has the advantages of realizing the precise installation of cava of different specifications, and is easy to operate and highly efficient.

Description

Technical Field

[0001] The present invention relates to the field of slip installation, and in particular to a slip installation tool and an installation method. Background Art

[0002] With the rapid development of the oil and gas industry, the demand for cementing tools is increasing. The hanger is an important cementing tool, and the slips are one of the key components of the hanger. When assembling the hanger, the existing slip assembly method is to place all the slips into the slip support sleeve, clamp the slips with a rubber ring, and then place the slips into the cone sleeve. When the slips are placed in the cone sleeve, only one end of the slips is fixed and the other end can be rotated, which makes it impossible to accurately control the inclination angle of the slips, and it is impossible to ensure that the head ends of all slips are smoothly placed in the guide groove of the cone sleeve. At the same time, the existing slip installation method requires at least two people to control the inclination angle of each slip and one person to control the cone sleeve during installation. It cannot guarantee the installation accuracy of the slips, which easily leads to the inability to effectively install the slips. In addition, the operation is complicated, time-consuming and labor-intensive, the installation efficiency is low, and the cost is high. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a slip installation tool and installation method which can realize the precise installation of slips of different specifications and is easy to operate and highly efficient.

[0004] In order to solve the above technical problems, the technical solution proposed by the present invention is:

[0005] A slip installation tool comprises a center rod, a plurality of slip installation blocks arranged corresponding to the slips, and an expansion unit that provides expansion force to each slip installation block, wherein the expansion unit comprises a connecting rod driving component and two groups of connecting rod components hinged to each other, wherein the connecting rod driving component is axially movably mounted on the center rod; one of the two groups of connecting rod components is hinged to the connecting rod driving component, and the other is hinged to the center rod; the slip installation block is rotatably installed at the hinge position of the two groups of connecting rod components.

[0006] As a further improvement of the above technical solution:

[0007] The connecting rod component includes a plurality of expansion connecting rods having the same number as the slip mounting blocks. The plurality of expansion connecting rods are evenly arranged along the circumference of the central rod. The slip mounting blocks are mounted on the ends of the expansion connecting rods.

[0008] The slip mounting block is hinged to the end of the expansion link and is locked in place by a fastener.

[0009] The connecting rod driving component includes an axial movable sleeve and a connecting rod driving sleeve, wherein the axial movable sleeve is threadedly connected to the center rod; the connecting rod driving sleeve is arranged outside the axial movable sleeve and moves synchronously with the axial movable sleeve along the axial direction of the center rod; there is an anti-rotation gap between the connecting rod driving sleeve and the axial movable sleeve; the connecting rod component is hinged to the connecting rod driving sleeve.

[0010] The axially movable sleeve includes a driving nut and a mounting nut fixed to each other. An end of the mounting nut close to the driving nut is provided with a mounting groove. The mounting groove and the mounting nut enclose a placement area for placing the connecting rod driving sleeve.

[0011] The connecting rod driving sleeve and the center rod are both provided with a plurality of hinge protrusions for convenient hinge connection with the connecting rod component, and the number of the hinge protrusions is the same as the number of the slip mounting blocks.

[0012] The slip mounting block is a magnetic suction block that can absorb the slips.

[0013] A method for installing slips using the slip installation tool described above comprises the following steps:

[0014] 1) Fix the slips on the slip mounting block and drive the connecting rod driving component to move axially along the center rod until the slips expand outward to the preset installation position;

[0015] 2) Insert the slips into the slip support sleeves one by one, and adjust the inclination of the slip mounting block until the slips are parallel to the center rod;

[0016] 3) Place the slips into the guide groove of the cone sleeve to complete the slip installation.

[0017] As a further improvement of the above technical solution:

[0018] In step 1), the slip mounting block is a magnetic suction block, and the slip mounting block is adsorbed and fixed to the corresponding slip.

[0019] In step 1), the connecting rod driving component is threadedly connected to the center rod, and the connecting rod driving component is driven to move along the axial direction of the center rod by rotating the connecting rod driving component.

[0020] Compared with the prior art, the advantages of the present invention are:

[0021] The present invention can drive the connecting rod component to move to complete the synchronous outward expansion of all slips through the connecting rod driving component, so that all slips are located on the circumference of the same diameter, thereby realizing the precise installation of slips of different specifications; and the installation of multiple slips can be completed by one person, and each specification of slip only needs to adjust the position of the connecting rod driving component once, which greatly reduces labor costs, is simple and convenient to operate, and has high work efficiency. At the same time, the slip mounting block can be rotatably mounted on the hinge position of the two groups of connecting rod components, so that the inclination angle of each slip can be effectively adjusted to ensure the installation accuracy of each slip; the slips can be effectively controlled during the assembly process, avoiding the occurrence of slips falling off and injuring people. The slip installation method of the present invention also has the above advantages, and is easy to operate and has high installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings, wherein:

[0023] Figure 1 It is a structural schematic diagram of the slip installation tooling of the present invention.

[0024] Figure 2 It is a schematic diagram of the positional relationship between the center rod and the connecting rod driving component of the present invention.

[0025] Figure 3 1. It is a flow chart of the slip installation method of the present invention.

[0026] Figure 4 It is a schematic diagram of the assembly of the slips of the present invention during the installation of various processes.

[0027] The numbers in the figure represent:

[0028] 1. Center rod; 2. Slip mounting block; 21. Fastener; 3. Slip; 4. Expansion unit; 41. Connecting rod drive component; 411. Axial moving sleeve; 4111. Drive nut; 4112. Mounting nut; 4113. Placement area; 412. Connecting rod drive sleeve; 42. Connecting rod component; 421. Expansion connecting rod; 5. Articulated protrusion; 6. Slip support sleeve; 7. Conical sleeve; 71. Guide groove. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but the scope of protection of the present invention is not limited thereby.

[0030] like Figure 1As shown, the slip installation tool of this embodiment includes a center rod 1, multiple slip installation blocks 2, and an expansion unit 4. The number of slip installation blocks 2 is the same as the number of slips 3, and the slips 3 are arranged in a one-to-one correspondence with the slip installation blocks 2. The expansion unit 4 includes a connecting rod drive component 41 and two sets of connecting rod components 42. The connecting rod drive component 41 is axially movably mounted on the center rod 1; the two sets of connecting rod components 42 are hinged to each other, with one of the two sets of connecting rod components 42 hinged to the connecting rod drive component 41 and the other set of the two sets of connecting rod components 42 hinged to the center rod 1; the slip installation blocks 2 are rotatably mounted at the hinged position of the two sets of connecting rod components 42. It has a simple structure and a compact layout.

[0031] The present invention utilizes a connecting rod drive component 41 to drive the connecting rod component 42 to move and synchronize the outward expansion of all slips 3, positioning all slips 3 on a circle of the same diameter. This allows for the precise installation of slips 3 of varying specifications. Multiple slips 3 can be installed by one person, requiring only a single adjustment of the connecting rod drive component 41 for each slip 3 specification. This significantly reduces labor costs, provides simple and convenient operation, and enhances work efficiency. Furthermore, the slip mounting block 2 is rotatably mounted at the hinged position of the two sets of connecting rod components 42, effectively adjusting the inclination angle of each slip 3 to ensure accurate installation. During assembly, the slips 3 can be effectively controlled, preventing them from falling and injuring personnel.

[0032] In this embodiment, there are six slip mounting blocks 2; each group of connecting rod components 42 includes six expansion connecting rods 421, and the six expansion connecting rods 421 are evenly arranged along the circumference of the center rod 1, and the slip mounting blocks 2 are installed at the ends of the corresponding expansion connecting rods 421.

[0033] The present invention adjusts the diameter of the expansion rods 421 by changing the included angle between the expansion rods 421 of the two sets of link members 42 by moving one set of link members 42, thereby changing the diameter of the expansion rods 421, thereby ultimately achieving the purpose of adjusting the diameter of the slips 3. This ensures rapid and accurate installation of the slips 3. In other embodiments, the number of expansion rods 421 provided can be adjusted according to the number of slips 3 provided, for example, four, five, etc.

[0034] Furthermore, the slip mounting block 2 is hinged to the end of the expansion link 421 and is locked in place by a fastener 21. This allows the slips 3 to have an inclination adjustment function, ensuring that the slips 3 are parallel to the center rod 1 before installation, thereby improving the accuracy of the installation of the slips 3.

[0035] In this embodiment, the slip mounting block 2 is a magnetic suction block, which can quickly absorb and fix the slips 3, is easy to operate, and has high fixing reliability.

[0036] like Figure 2As shown, the connecting rod drive component 41 includes an axially movable sleeve 411 and a connecting rod drive sleeve 412. The axially movable sleeve 411 is threadedly connected to the center rod 1; the connecting rod drive sleeve 412 is sleeved outside the axially movable sleeve 411 and can move synchronously with the axially movable sleeve 411 along the axial direction of the center rod 1. The connecting rod component 42 is hinged to the connecting rod drive sleeve 412. An anti-rotation clearance is provided between the connecting rod drive sleeve 412 and the axially movable sleeve 411. This ensures that the connecting rod drive sleeve 412 only moves axially along the center rod 1 when the axially movable sleeve 411 rotates, and does not rotate with the axially movable sleeve 411, thereby providing a reliable axial force for the connecting rod component 42.

[0037] Furthermore, the axially movable sleeve 411 includes a drive nut 4111 and a mounting nut 4112. The drive nut 4111 and the mounting nut 4112 are fixed to each other. The mounting nut 4112 has a mounting slot at one end near the drive nut 4111. The mounting slot and the mounting nut 4112 together form a placement area 4113, and the connecting rod drive sleeve 412 is positioned within the placement area 4113. Rotating the drive nut 4111 drives the mounting nut 4112 to rotate synchronously. At this time, the axially movable sleeve 411 moves axially along the center rod 1, thereby driving the axial movement of the connecting rod drive sleeve 412. This configuration is simple in structure and easy to operate.

[0038] Furthermore, the connecting rod driving sleeve 412 and the central rod 1 are each provided with a plurality of six hinge protrusions 5, which are used to be hinged with the corresponding expansion connecting rods 421. The number of hinge protrusions 5 is the same as the number of expansion connecting rods 421, and they are provided in a one-to-one correspondence.

[0039] like Figure 3 and Figure 4 As shown, the method for installing slips using the above-mentioned slip installation tool in this embodiment includes the following steps:

[0040] 1) Fix the slips 3 on the slip mounting block 2, and drive the connecting rod driving component 41 to move axially along the center rod 1 until the slips 3 expand outward to the preset installation position.

[0041] 2) Insert the slips 3 into the slip support sleeve 6 in sequence, and adjust the inclination angle of the slip mounting block 2 until the slips 3 are parallel to the center rod 1;

[0042] 3) Place the slips 3 into the guide groove 71 of the cone sleeve 7 to complete the slip installation.

[0043] The slip installation method of the present invention also has the above advantages of the slip installation tool. The slip installation block 2 supports the slips 3 when each slip 3 is installed on the slip support sleeve 6, preventing the slips 3 from falling during installation. The method is easy to operate and has high installation efficiency.

[0044] Furthermore, in step 1), the slip mounting block 2 is a magnetic suction block, and the slip mounting block 2 is adsorbed and fixed to the corresponding slip 3 .

[0045] Furthermore, in step 1), the connecting rod driving component 41 is threadedly connected to the central rod 1 , and the connecting rod driving component 41 is driven to move along the axial direction of the central rod 1 by rotating the connecting rod driving component 41 .

[0046] While the present invention has been described with reference to preferred embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, the various technical features described in the various embodiments may be combined in any manner, provided no structural conflicts exist. The present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A slip installation method, characterized in that: The cava installation method can be carried out using a cava installation tool, which includes a center rod, a plurality of cava installation blocks corresponding to the cava, and an expansion unit that provides expansion force for each cava installation block, the expansion unit includes a connecting rod driving component and two groups of connecting rod components hinged to each other, wherein the connecting rod driving component can be axially movably sleeved on the center rod; one of the two groups of connecting rod components is hinged to the connecting rod driving component, and the other is hinged to the center rod; the cava installation block can be rotatably installed at the hinge position of the two groups of connecting rod components; the connecting rod component includes a plurality of the same number as the cava installation blocks An expansion connecting rod, wherein a plurality of the expansion connecting rods are evenly arranged along the circumference of the center rod, and the slip mounting block is mounted on the end of the expansion connecting rod; the slip mounting block is hinged to the end of the expansion connecting rod of one of the connecting rod components and is locked in position by a fastener; the connecting rod driving component comprises an axial movable sleeve and a connecting rod driving sleeve, wherein the axial movable sleeve is threadedly connected to the center rod; the connecting rod driving sleeve is arranged outside the axial movable sleeve and moves synchronously with the axial movable sleeve along the axial direction of the center rod; an anti-rotation gap is provided between the connecting rod driving sleeve and the axial movable sleeve; the connecting rod component is hinged to the connecting rod driving sleeve; The slip installation method comprises the following steps: 1) Fix the slips to the slip mounting block and drive the connecting rod driving component to move axially along the center rod until the slips expand outward to the preset installation position. The slip mounting block is a magnetic suction block and is fixed to the corresponding slip; 2) Insert the slips into the slip support sleeves one by one, and adjust the inclination of the slip mounting block until the slips are parallel to the center rod; 3) Place the slips into the guide groove of the cone sleeve to complete the slip installation.

2. The slip installation method according to claim 1, characterized in that: In step 1), the connecting rod driving component is threadedly connected to the center rod, and the connecting rod driving component is driven to move along the axial direction of the center rod by rotating the connecting rod driving component.

3. The slip installation method according to claim 1 or 2, characterized in that: The axially movable sleeve includes a driving nut and a mounting nut fixed to each other. An end of the mounting nut close to the driving nut is provided with a mounting groove. The mounting groove and the mounting nut enclose a placement area for placing the connecting rod driving sleeve.

4. The slip installation method according to claim 1 or 2, characterized in that: The connecting rod driving sleeve and the center rod are both provided with a plurality of hinge protrusions for convenient hinge connection with the connecting rod component, and the number of the hinge protrusions is the same as the number of the slip mounting blocks.

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