Sleeve centralizer storage rack

Abstract

The utility model relates to a casing centralizer storage rack which comprises a frame and a plurality of trays. The trays are sequentially stacked in the frame from top to bottom. The tray is provided with a plurality of positioning rings for placing the casing centralizer, and the middle part of the tray is provided with a clamping jaw gripper; a plurality of walking wheels are arranged at the bottom of the frame, at least two sets of positioning assemblies are further arranged at the bottom of the frame, and the frame can be positioned on a drill floor face through the positioning assemblies. The device has the beneficial effects that excessive space of a drill floor surface is not occupied, the influence on equipment on the drill floor surface is reduced, and the operation safety is improved; and moreover, the continuity and smoothness of operation can be ensured, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil and natural gas drilling, in particular to a casing centralizer storage rack. Background Art

[0002] Among the requirements for oil and gas drilling, cementing is an extremely important part of the oil exploration and development system engineering. The quality of cementing is not only related to the speed and cost of drilling, but also affects the smooth production and life of oil and gas wells, and even the recovery rate of oil and gas reservoirs. Casing is an important tool for cementing. It is used to support the well wall of oil and gas wells, reinforce the well wall to prevent collapse, so as to ensure the normal operation of the entire oil well during the drilling process and after completion. Casing centering is an important prerequisite for ensuring cementing quality. If the casing centering is poor, it will cause many problems in cementing construction and seriously affect the cementing quality. The function of the casing centralizer is to center the casing in the wellbore, to ensure that the cement slurry is evenly solidified in the annular space formed by the casing and the well wall during cementing, thereby improving the cementing quality.

[0003] At present, multiple casing centralizers are used in traditional cementing operations. The used casing centralizers are placed near the wellhead in advance for easy access. However, due to the large number of casing centralizers, a large space on the drilling floor is occupied, which often affects the normal use of other drilling floor equipment, which not only affects the operation efficiency, but also poses a safety hazard.

[0004] Therefore, there is an urgent need for a casing centralizer storage rack that can improve safety and operating efficiency. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a casing centralizer storage rack, which solves the technical problems of the prior art that the working efficiency is affected and there are potential safety hazards.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0009] The utility model provides a casing centralizer storage rack, comprising a frame and a plurality of trays; the plurality of trays are stacked in the frame in sequence from top to bottom; the trays are provided with a plurality of positioning rings for placing casing centralizers, and the middle part of the trays is provided with a clamping claw gripper; the bottom of the frame is provided with a plurality of walking wheels, and the bottom of the frame is also provided with at least two groups of positioning components, and the frame can be positioned on a drilling table through the positioning components.

[0010] Optionally, the gripper of the clamp is in a tubular shape; its outer wall has a plurality of through holes evenly arranged from top to bottom.

[0011] Optionally, the plurality of through holes are evenly distributed along the circumference of the clamping gripper.

[0012] Optionally, the number of the positioning rings is eight, and the eight positioning rings are arranged around the clamping gripper.

[0013] Optionally, the tray includes a bottom plate and a plurality of supporting legs; the plurality of supporting legs are supported on the bottom of the bottom plate, and the positioning ring is disposed on the bottom plate.

[0014] Optionally, a positioning block is provided on the upper surface of the base plate at a position vertically corresponding to the supporting leg, and a downward-facing trumpet is provided at the bottom end of the supporting leg; the tray located above can fall onto the positioning block of the tray located below through its trumpet.

[0015] Optionally, the positioning assembly includes a mounting member and a latch assembly; the mounting member is fixed to the bottom of the frame, the latch assembly is installed on the mounting member, and the latch assembly can position the frame on the drilling table.

[0016] Optionally, the latch assembly includes a chain and a positioning latch; one end of the positioning latch is connected to the mounting member through the chain, and the positioning latch can be plugged into the drilling table to position the frame.

[0017] Optionally, a plug-in door is also provided on one side of the frame.

[0018] (III) Beneficial effects

[0019] The beneficial effects of the utility model are:

[0020] The utility model provides a casing centralizer storage rack, which can store multiple casing centralizers through multiple positioning rings on a pallet, and can place multiple casing centralizers through a limited space, does not occupy too much drilling table space, reduces the impact on drilling table equipment, and improves the safety of operation; and the clamping claw gripper on the pallet can be suitable for the centralizer clamping claw, that is, after the centralizer clamping claw grabs the casing centralizer on the pallet, the centralizer clamping claw can take the pallet out of the frame through the clamping claw gripper to expose the pallet located below the pallet, and then the centralizer clamping claw grabs the casing centralizer on the pallet below to continue the casing lowering operation, thereby ensuring the continuity and smoothness of the operation, and greatly improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a casing centralizer storage rack in a specific embodiment of the utility model;

[0022] Figure 2It is a schematic structural diagram of a tray in a specific implementation manner of the utility model.

[0023] [Description of Reference Numerals]

[0024] 1: frame; 11: running wheel; 12: plug-in door;

[0025] 2: tray; 21: bottom plate; 22: support leg; 23: positioning block; 24: bell mouth;

[0026] 3: Positioning ring;

[0027] 4: Gripper gripper;

[0028] 51: mounting part; 52: chain; 53: positioning pin. DETAILED DESCRIPTION

[0029] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0030] like Figure 1 and Figure 2 As shown, this embodiment provides a casing centralizer storage rack, including a frame 1 and a plurality of trays 2; the plurality of trays 2 are stacked in the frame 1 from top to bottom, and a plug-in door 12 is also provided on one side of the frame 1; the tray 2 is provided with a plurality of positioning rings 3 for placing the casing centralizer, and the middle of the tray 2 is provided with a clamping gripper 4; the bottom of the frame 1 is provided with a plurality of walking wheels 11, and the bottom of the frame 1 is also provided with at least two sets of positioning components, and the frame 1 can be positioned on the drilling table through the positioning components. In this specific embodiment, the number of positioning rings 3 is eight, and the eight positioning rings 3 are arranged around the clamping gripper 4.

[0031] Specifically, multiple casing centralizers can be stored through the multiple positioning rings 3 on the pallet 2, and multiple casing centralizers can be placed through a limited space without occupying too much drilling table space, reducing the impact on the drilling table equipment, and improving the safety of the operation; and the clamping claw 4 on the pallet 2 can be suitable for the centralizer clamping claw, that is, after the centralizer clamping claw grabs the casing centralizer on the pallet 2, the centralizer clamping claw can take the pallet 2 out of the frame 1 through the clamping claw 4, revealing the pallet 2 located below the pallet 2, and then the centralizer clamping claw grabs the casing centralizer on the lower pallet 2 to continue the casing lowering operation, ensuring the continuity and smoothness of the operation, and greatly improving the work efficiency.

[0032] Furthermore, if Figure 1 and Figure 2 As shown, the shape of the clamp gripper 4 is tubular; its outer wall has a plurality of through holes evenly arranged from top to bottom, and the plurality of through holes are evenly distributed along the circumference of the clamp gripper 4; thereby, a structural form similar to that of a casing centralizer can be formed, so that the centralizer clamp can grasp the pallet 2 through the clamp gripper 4, thereby improving the continuity of the operation.

[0033] Furthermore, if Figure 1 and Figure 2 As shown, the pallet 2 includes a bottom plate 21 and a plurality of supporting legs 22; the plurality of supporting legs 22 are supported at the bottom of the bottom plate 21, and a positioning ring 3 is arranged on the bottom plate 21. A positioning block 23 is arranged on the upper surface of the bottom plate 21 at a position corresponding to the supporting legs 22 in the vertical direction, and a bell mouth 24 is arranged at the bottom end of the supporting legs 22; the pallet 2 located above can fall correspondingly on the positioning block 23 of the pallet 2 located below through its bell mouth 24. When the centralizer clamp clamps a pallet 2 and places it on another pallet 2, and there is a deviation, the bell mouth 24 of the supporting legs 22 of the upper pallet 2 cooperates with the positioning block 23 of the lower pallet 2 to play a guiding role, so that the upper pallet 2 can accurately fall on the lower pallet 2. The positioning ring 3 and the bottom plate 21 are connected and fixed by bolts and nuts. The positioning ring 3 can correctly position the casing centralizers of different specifications and sizes, and ensure that the casing centralizer will not fall during the hoisting process of the casing centralizer storage rack.

[0034] Furthermore, if Figure 1 and Figure 2 As shown, the positioning assembly includes a mounting member 51 and a latch assembly; the mounting member 51 is fixed to the bottom of the frame 1, and the latch assembly is installed on the mounting member 51, and the latch assembly can position the frame 1 on the drilling table. Specifically, the latch assembly includes a chain 52 and a positioning latch 53; one end of the positioning latch 53 is connected to the mounting member 51 through the chain 52, and the positioning latch 53 can be plugged into the drilling table to position the frame 1.

[0035] Specifically, the use of the casing centralizer storage rack provided in this specific embodiment is to move the casing centralizer storage rack to the specified position on the drilling table, and position the frame 1 through the positioning pin 53 of the positioning assembly. Remove the plug-in door 12 to complete the positioning. During the casing lowering operation, the centralizer clamp first grabs the casing centralizer located on the uppermost tray 2. After all the casing centralizers on the uppermost tray 2 are grabbed, the centralizer clamp clamps the clamp gripper 4 to take out the uppermost tray 2, revealing the tray 2 below, and then continue the operation.

[0036] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0039] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0040] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A casing centralizer storage rack, characterized in that: It comprises a frame (1) and a plurality of trays (2); A plurality of trays (2) are stacked in sequence from top to bottom in the frame (1); The tray (2) is provided with a plurality of positioning rings (3) for placing casing centralizers, and the middle part of the tray (2) is provided with a clamping claw gripper (4); The bottom of the frame (1) is provided with a plurality of walking wheels (11), and the bottom of the frame (1) is also provided with at least two groups of positioning components, and the frame (1) can be positioned on the drilling table through the positioning components.

2. The casing centralizer storage rack according to claim 1, characterized in that: The clamping claw gripper (4) is in the shape of a tube; its outer wall has a plurality of through holes evenly arranged from top to bottom.

3. The casing centralizer storage rack according to claim 2, characterized in that: The plurality of through holes are evenly distributed along the circumference of the clamping gripper (4).

4. The casing centralizer storage rack according to claim 1, characterized in that: The number of the positioning rings (3) is eight, and the eight positioning rings (3) are arranged around the clamping gripper (4).

5. The casing centralizer storage rack according to claim 1, characterized in that: The tray (2) comprises a bottom plate (21) and a plurality of supporting legs (22); The plurality of support legs (22) are supported on the bottom of the base plate (21), and the positioning ring (3) is arranged on the base plate (21).

6. The casing centralizer storage rack according to claim 5, characterized in that: A positioning block (23) is provided on the upper surface of the bottom plate (21) at a position vertically corresponding to the supporting leg (22), and a downwardly facing bell mouth (24) is provided at the bottom end of the supporting leg (22); The tray (2) located above can fall correspondingly on the positioning block (23) of the tray (2) located below through its bell mouth (24).

7. The casing centralizer storage rack according to claim 1, characterized in that: The positioning assembly comprises a mounting member (51) and a latch assembly; The mounting member (51) is fixed to the bottom of the frame (1), and the latch assembly is mounted on the mounting member (51), and the latch assembly can position the frame (1) on the drilling table.

8. The casing centralizer storage rack according to claim 7, characterized in that: The latch assembly comprises a chain (52) and a positioning latch (53); One end of the positioning pin (53) is connected to the mounting member (51) via the chain (52), and the positioning pin (53) can be plugged into the drilling table to position the frame (1).

9. The casing centralizer storage rack according to claim 1, characterized in that: A plug-in door (12) is also provided on one side of the frame (1).

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