Underwater petroleum drilling and production fixing chuck

Abstract

The utility model relates to the technical field of underwater oil drilling and production, and discloses an underwater oil drilling and production fixing chuck which comprises a first ring frame, a second ring frame and a third ring frame, connecting assemblies are arranged between the first ring frame and the third ring frame, and connecting assemblies are arranged between the second ring frame and the third ring frame. Protection blocks are arranged on the inner sides of the first ring frame, the second ring frame and the third ring frame, protruding blocks are arranged on the portions, close to the inner sides of the first ring frame, the second ring frame and the third ring frame, of the upper portions of the protection blocks, through holes are formed in the bottoms of the protection blocks, and mounting grooves are formed in the tops of the protection blocks. According to the underwater petroleum drilling and production fixing chuck, through the annular design of the protection block, a drill rod or a sleeve rod can be conveniently prevented from being damaged due to clamping, so that the service life of the drill rod or the sleeve rod is prolonged, when the protection block is installed, the protection block can be rapidly installed through matching of a limiting column and a limiting groove, and when the protection block faces drill rods or sleeve rods of different sizes, the protection block can be rapidly installed. And only the protection blocks with different sizes need to be replaced.

Description

Technical Field

[0001] This utility model relates to the field of underwater oil drilling and production technology, specifically to an underwater oil drilling and production fixed chuck. Background Technology

[0002] Petroleum refers to a mixture of liquid and solid hydrocarbons that occurs naturally. Petroleum is further classified into crude oil, natural gas, natural gas liquefaction, and natural tar, but "petroleum" is conventionally used to define "crude oil." The color and viscosity of petroleum vary considerably depending on its origin and composition, ranging from golden yellow to dark brown. Light oils can even be nearly transparent and are known as the "blood of industry." Petroleum is stored in some areas of the upper crust and is mainly composed of a mixture of various alkanes, cycloalkanes, and aromatic hydrocarbons. Subsea oil drilling chucks are core components of deep-sea drilling equipment, primarily used to secure drill pipes, casings, or risers, ensuring their stability under high pressure, strong corrosion, and complex ocean currents. Their applications include subsea wellhead connections, drilling platform positioning, and the installation and maintenance of subsea production systems, and they are particularly crucial in ultra-deepwater (1500 meters) operations.

[0003] Chinese utility model patent CN209288756U discloses an underwater oil pipe hanger hydraulic clamp. This clamp uses a hydraulic cylinder for driving clamping, enabling rapid and high-volume cutting during machining. The compression of a spring and the opening of the cylinder ensure rapid positioning and clamping, achieving one-time positioning and clamping, significantly reducing clamping time while maintaining machining accuracy. Furthermore, this utility model is convenient to use, easy to operate, safe and reliable, and operates smoothly during machining.

[0004] However, this underwater hydraulic clamp for oil pipes is not suitable for clamping oil pipes of different sizes. Furthermore, since the clamp directly holds the oil pipe with its jaws, prolonged underwater operation can damage the oil pipe over time, making it impractical. Summary of the Invention

[0005] This invention provides a fixed chuck for underwater oil drilling and production, which aims to solve the problem of poor reliability of existing underwater tubing hanger hydraulic clamps.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A subsea oil drilling and production chuck includes a first ring frame, a second ring frame, and a third ring frame. Connecting components are provided between the first and third ring frames, and between the second and third ring frames. Protective blocks are provided on the inner sides of the first, second, and third ring frames. A protrusion is provided on the upper part of the protective block near the inner side of the first, second, and third ring frames. A through-hole is provided at the bottom of the protective block, and a mounting groove is provided at the top. A limiting groove is provided on the side of the protective block near the first, second, and third ring frames. A protective pad is provided at the bottom of the protrusion. A locking component is provided between the first and second ring frames.

[0008] Preferably, a cam is fixedly installed on the outer side of the first ring frame, the second ring frame, and the third ring frame. Two identical sets of cams are provided, and the two sets of cams are symmetrically distributed on the first ring frame, the second ring frame, and the third ring frame. A support column is provided between the two sets of cams. A limit column is fixedly installed on the inner side of the first ring frame, the second ring frame, and the third ring frame. A locking screw is provided at the bottom of the inner side of the first ring frame, the second ring frame, and the third ring frame.

[0009] The above technical solution effectively strengthens the first, second, and third ring frames by using support columns between the cams, thereby improving the safety of the chuck. The setting of limit columns facilitates the quick installation of the protective block, and the locking screws can fix the protective block to the inside of the first, second, and third ring frames, improving the stability of the device.

[0010] Preferably, the protective blocks are distributed in a ring at equal intervals on the inner sides of the first ring frame, the second ring frame and the third ring frame, and four identical sets of protective blocks are respectively provided on the first ring frame, the second ring frame and the third ring frame, and the protective pad is made of rubber.

[0011] The above technical solution, by setting multiple sets of protective blocks, can better protect the drill rod or sleeve during operation, preventing damage to the drill rod or sleeve. The protective pads are made of rubber, which helps prevent excessive contact between the drill rod or sleeve and the protective blocks during operation. The ring design can prevent damage to the drill rod or sleeve due to clamping, thus extending the service life of the drill rod or sleeve.

[0012] Preferably, the limiting post is adapted to the limiting groove, the first locking screw corresponds to the mounting groove, and the protective block is fixed to the first ring frame, the second ring frame and the third ring frame by the first locking screw.

[0013] With the above technical solution, when installing the protective block, the limiting post and the limiting groove are matched to achieve quick installation of the protective block with the first ring frame, the second ring frame and the third ring frame. Then, by tightening the screws and aligning them with the mounting grooves on the protective block, the protective block can be easily fixed with the first ring frame, the second ring frame and the third ring frame.

[0014] Preferably, the connecting assembly includes a fixing block, a rotating shaft, and a connecting block. The fixing block is fixedly installed on the outer side of the first ring frame near the third ring frame, the rotating shaft is provided on the outer side of the third ring frame near the first ring frame, and a connecting block is provided between the fixing block and the rotating shaft.

[0015] The above technical solution incorporates a connecting component to facilitate the connection between the third ring frame and the first and second ring frames, thereby improving the flexibility of the device and making it suitable for various specifications of drill rods or sleeves. By setting a connecting block, the connection between the third ring frame and the first and second ring frames can be strengthened, thus improving the safety of the device.

[0016] Preferably, the rotating shaft and the third ring frame are rotatably mounted, and two identical sets of rotating shafts are provided, with the two sets of rotating shafts symmetrically distributed on the third ring frame.

[0017] Through the above technical solution, by setting the rotating shaft and the third ring frame to be rotatably installed, the first ring frame, the second ring frame and the third ring frame can be rotatably connected. Through the rotatable connection of the first ring frame and the second ring frame, when installing the drill rod or sleeve rod, it is not necessary to insert the drill rod or sleeve rod into the chuck. The worker only needs to wrap the chuck around the drill rod or sleeve rod once to fix the chuck to the drill rod or sleeve rod, which improves the work efficiency during installation.

[0018] Preferably, the locking assembly includes a first connecting plate, a second connecting plate, a second locking screw, a latch, and a hook. The first connecting plate is located on the outer side of the first ring frame near the second ring frame, and the second connecting plate is located on the outer side of the second ring frame near the first ring frame. The second locking screw is located on the side of the first connecting plate and the second connecting plate away from the first and second ring frames, respectively. The first connecting plate and the second connecting plate are fixed to the first ring frame and the second ring frame by the second locking screw. A latch is fixedly installed on the side of the first connecting plate away from the first ring frame, and a hook is located on the side of the second connecting plate away from the second ring frame.

[0019] Furthermore, the latches and hooks are provided in two identical sets, and the two sets of latches and hooks are symmetrically distributed on connecting plate one and connecting plate two, respectively.

[0020] The above technical solution, by setting two sets of latches and hooks, can effectively enhance the connection strength between the first ring frame and the second ring frame. The cooperation of the latches and hooks also makes it easy for workers to lock the first and second ring frames, reducing the difficulty of the work and thus improving the practicality of the device.

[0021] The underwater oil drilling and production chuck provided by this utility model has the following advantages compared to the prior art:

[0022] Beneficial effects:

[0023] 1. This underwater oil drilling and production fixed chuck, by installing protective blocks in a ring on the first ring frame, second ring frame and third ring frame, can easily prevent the drill pipe or sleeve from being damaged due to clamping, thereby extending the service life of the drill pipe or sleeve. Furthermore, by setting protective pads on the protective blocks, direct contact between the drill pipe or sleeve and the protective blocks is avoided, so as to prevent wear of the drill pipe or sleeve by the protective blocks over a long period of use, thereby reducing the working efficiency of the drill pipe or sleeve.

[0024] 2. This underwater oil drilling and production fixed chuck, when installing the protective block, allows for quick installation of the protective block with the first, second, and third ring frames through the matching of the limiting pin and the limiting groove. Subsequently, by tightening the screws and aligning them with the mounting grooves on the protective block, it is easy to fix the protective block with the first, second, and third ring frames. Furthermore, the rotating shaft and the third ring frame are designed for rotatable installation, allowing for the rotatable connection between the first and second ring frames and the third ring frame. Thus, when installing drill pipes or sleeves, the operator only needs to surround the outside of the drill pipe or sleeve, and then quickly lock it through the locking component, achieving a rapid installation effect. When dealing with drill pipes or sleeves of different sizes, only the protective block of different sizes needs to be replaced. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the underwater oil drilling and production fixed chuck of this utility model;

[0026] Figure 2 This is a schematic diagram showing the disassembled structure of the first ring frame and the second ring frame in this utility model;

[0027] Figure 3 This is a schematic diagram of the first ring frame, the second ring frame, and the third ring frame in this utility model;

[0028] Figure 4 This is a schematic diagram of the connecting component structure in this utility model;

[0029] Figure 5 This is a schematic diagram of the locking component structure in this utility model;

[0030] Figure 6This is a schematic diagram of the protective block structure in this utility model.

[0031] The components are as follows: 1. First ring frame; 2. Second ring frame; 3. Third ring frame; 4. Protruding plate; 5. Support column; 6. Limiting column; 7. Locking screw one; 8. Connecting assembly; 801. Fixing block; 802. Rotating shaft; 803. Connecting block; 9. Protective block; 10. Protrusion; 11. Through hole; 12. Mounting groove; 13. Limiting groove; 14. Protective pad; 15. Locking assembly; 1501. Connecting plate one; 1502. Connecting plate two; 1503. Locking screw two; 1504. Locking buckle; 1505. Hook ring. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Example 1:

[0034] like Figure 1-4 as well as Figure 6 As shown, this is an example of the structure of the underwater oil drilling and production fixed chuck provided in this example.

[0035] Based on the illustration, the underwater oil drilling and production fixed chuck provided in this example specifically includes a first ring frame 1, a second ring frame 2, and a third ring frame 3. A connecting component 8 is provided between the first ring frame 1 and the third ring frame 3, and between the second ring frame 2 and the third ring frame 3. A protective block 9 is provided on the inner side of the first ring frame 1, the second ring frame 2, and the third ring frame 3. A protrusion 10 is provided on the upper part of the protective block 9 near the inner side of the first ring frame 1, the second ring frame 2, and the third ring frame 3. A through hole 11 is provided at the bottom of the protective block 9. An installation groove 12 is provided at the top of the protective block 9. A limiting groove 13 is provided on the side of the protective block 9 near the first ring frame 1, the second ring frame 2, and the third ring frame 3. A protective pad 14 is provided at the bottom of the protrusion 10. A locking component 15 is provided between the first ring frame 1 and the second ring frame 2.

[0036] See further Figure 5 The locking component 15 in this example solution specifically includes a connecting plate 1501, a connecting plate 2 1502, a locking screw 2 1503, a latch 1504, and a hook 1505.

[0037] The first ring frame 1 is provided with a connecting plate 1501 on the outer side near the second ring frame 2, and the second ring frame 2 is provided with a connecting plate 1502 on the outer side near the first ring frame 1. The connecting plate 1501 and the connecting plate 1502 are provided with a locking screw 1503 on the side away from the first ring frame 1 and the second ring frame 2, respectively. The connecting plate 1501 and the connecting plate 1502 are fixed to the first ring frame 1 and the second ring frame 2 by the locking screw 1503. A buckle 1504 is fixedly installed on the side of the connecting plate 1501 away from the first ring frame 1, and a hook 1505 is provided on the side of the connecting plate 1502 away from the second ring frame 2.

[0038] Based on this, there are two identical sets of latches 1504 and hooks 1505, which are symmetrically distributed on connecting plate 1501 and connecting plate 2, respectively.

[0039] This configuration, with two sets of latches 1504 and hooks 1505, effectively enhances the connection strength between the first ring frame 1 and the second ring frame 2. The cooperation of latches 1504 and hooks 1505 also makes it easy for workers to lock the first ring frame 1 and the second ring frame 2, reducing the difficulty of the work and thus improving the practicality of the device.

[0040] Furthermore, in this example, cams 4 are fixedly installed on the outer sides of the first ring frame 1, the second ring frame 2, and the third ring frame 3. Two identical sets of cams 4 are provided, and the two sets of cams 4 are symmetrically distributed on the first ring frame 1, the second ring frame 2, and the third ring frame 3. A support column 5 is provided between the two sets of cams 4. A limit column 6 is fixedly installed on the inner side of the first ring frame 1, the second ring frame 2, and the third ring frame 3. A locking screw 7 is provided at the bottom of the inner side of the first ring frame 1, the second ring frame 2, and the third ring frame 3.

[0041] With this configuration, the support columns 5 between the cams 4 in this example can effectively strengthen the first ring frame 1, the second ring frame 2, and the third ring frame 3, thereby improving the safety of the chuck. The setting of the limiting column 6 facilitates the quick installation of the protective block 9. The protective block 9 can be fixed to the inner side of the first ring frame 1, the second ring frame 2, and the third ring frame 3 by the locking screw 7, which improves the stability of the device.

[0042] Further, see Figure 6 In this example, the protective blocks 9 are distributed in a ring at equal intervals on the inner sides of the first ring frame 1, the second ring frame 2 and the third ring frame 3. The protective blocks 9 are provided in four identical sets on the first ring frame 1, the second ring frame 2 and the third ring frame 3 respectively. The protective pad 14 is made of rubber.

[0043] This design, with multiple sets of protective blocks 9, facilitates better protection of the drill rod or sleeve during operation, preventing damage to the drill rod or sleeve. The protective pad 14 is made of rubber, which helps prevent excessive contact between the drill rod or sleeve and the protective block 9 during operation. The ring design prevents damage to the drill rod or sleeve due to clamping, extending the service life of the drill rod or sleeve.

[0044] Furthermore, participate Figure 4 and Figure 6 In this example, the limiting post 6 is adapted to the limiting groove 13, and the locking screw 7 corresponds to the mounting groove 12. The protective block 9 is fixed to the first ring frame 1, the second ring frame 2, and the third ring frame 3 by the locking screw 7. With this configuration, when installing the protective block 9, the matching of the limiting post 6 and the limiting groove 13 enables quick installation of the protective block 9 with the first ring frame 1, the second ring frame 2, and the third ring frame 3. Subsequently, the matching of the locking screw 7 with the mounting groove 12 on the protective block 9 facilitates the fixing of the protective block 9 with the first ring frame 1, the second ring frame 2, and the third ring frame 3.

[0045] Example 2:

[0046] This example, based on the solution in Example 1, further presents a configuration scheme for connection component 8.

[0047] See Figure 4 The connection component 8 given in this example specifically includes a fixing block 801, a rotating shaft 802, and a connecting block 803.

[0048] Among them, a fixing block 801 is fixedly installed on the outer side of the first ring frame 1 near the third ring frame 3, and a rotating shaft 802 is provided on the outer side of the third ring frame 3 near the first ring frame 1. A connecting block 803 is provided between the fixing block 801 and the rotating shaft 802.

[0049] The connection component 8, as designed, facilitates the connection between the third ring frame 3 and the first ring frame 1 and the second ring frame 2, improving the flexibility of the device and making it suitable for various specifications of drill rods or sleeves. By setting the connection block 803, the connection between the third ring frame 3 and the first ring frame 1 and the second ring frame 2 can be strengthened, thereby improving the safety of the device.

[0050] As further explanation, in this example, the rotating shaft 802 and the third ring frame 3 are rotatably installed, and there are two identical sets of rotating shafts 802, which are symmetrically distributed on the third ring frame 3.

[0051] This design, by setting the rotating shaft 802 and the third ring frame 3 to be rotatably installed, allows for the rotatable connection between the first ring frame 1, the second ring frame 2, and the third ring frame 3. Through the rotatable connection of the first ring frame 1 and the second ring frame 2, when installing the drill rod or sleeve, it is not necessary to insert the drill rod or sleeve into the chuck. The operator only needs to wrap the chuck around the drill rod or sleeve once to fix the chuck to the drill rod or sleeve, thus improving the work efficiency during installation.

[0052] The following section further explains the application scheme of the underwater oil drilling and production fixed chuck provided in the above example.

[0053] Combination Figures 1 to 6 When using this underwater oil drilling and production fixed chuck, the protective block 9 can be quickly installed on the limiting post 6 by matching the limiting post 6 with the limiting groove 13. Then, by locking the screw 7 and corresponding to the mounting groove 12 on the protective block 9, the protective block 9 can be fixed to the first ring frame 1, the second ring frame 2 and the third ring frame 3, thereby achieving the rapid installation of the protective block 9 with the first ring frame 1, the second ring frame 2 and the third ring frame 3.

[0054] Subsequently, the protective blocks 9 are distributed in an equidistant ring on the inner side of the first ring frame 1, the second ring frame 2, and the third ring frame 3, which can better protect the drill rod or sleeve during operation and prevent the drill rod or sleeve from being damaged during operation.

[0055] Furthermore, by setting the material of the protective pad 14 to rubber, it is easy to prevent excessive contact between the drill rod or sleeve and the protective block 9 during operation. The ring design can prevent the drill rod or sleeve from being damaged due to clamping, thus extending the service life of the drill rod or sleeve. When dealing with drill rods or sleeves of different sizes, it is only necessary to replace the protective block 9 of different sizes.

[0056] By designing the rotating shaft 802 and the third ring frame 3 for rotatable installation, the first ring frame 1, the second ring frame 2, and the third ring frame 3 can be rotatably connected. This rotatable connection allows for easier installation of drill rods or sleeves without inserting them into the chuck; the operator simply wraps the chuck around the drill rod or sleeve once to secure it, improving installation efficiency. The two sets of locking buckles 1504 and hooks 1505 effectively enhance the connection strength between the first ring frame 1 and the second ring frame 2. The cooperation of the locking buckles 1504 and hooks 1505 also facilitates easy locking of the first ring frame 1 and the second ring frame 2, reducing work difficulty and improving the practicality of the device. The quick locking mechanism of the latch 1504 and hook 1505 facilitates the rapid disassembly of the first ring frame 1 and the second ring frame 2. When dealing with drill rods or sleeves of different sizes, simply loosen the latch 1504 and hook 1505 to install the chuck of the required size with the drill rod or sleeve, thus improving installation efficiency.

[0057] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An underwater oil drilling and production stationary chuck comprising a first ring (1), a second ring (2) and a third ring (3), characterized in that: The first ring holder (1) and the third ring holder (3), the second ring holder (2) and the third ring holder (3) are provided with connecting assemblies (8), the inner side of the first ring holder (1), the second ring holder (2) and the third ring holder (3) are provided with protection blocks (9), the upper part of the protection block (9) is close to the inner side of the first ring holder (1), the second ring holder (2) and the third ring holder (3) and is provided with a protruding block (10), the bottom of the protection block (9) is provided with a through hole (11), the top of the protection block (9) is provided with a mounting groove (12), the side of the protection block (9) close to the first ring holder (1), the second ring holder (2) and the third ring holder (3) is provided with a limiting groove (13), the bottom of the protruding block (10) is provided with a protection pad (14), the first ring holder (1) and the second ring holder (2) are provided with locking assemblies (15).

2. An underwater oil drilling and production stationary chuck according to claim 1, characterized in that: The outer side of the first ring holder (1), the second ring holder (2) and the third ring holder (3) is fixedly installed with a convex disc (4), the convex disc (4) is provided with the same two groups, the two groups of convex discs (4) are symmetrically distributed on the first ring holder (1), the second ring holder (2) and the third ring holder (3), the two groups of convex discs (4) are provided with supporting columns (5), the inner side of the first ring holder (1), the second ring holder (2) and the third ring holder (3) is fixedly installed with a limiting column (6), the bottom of the inner side of the first ring holder (1), the second ring holder (2) and the third ring holder (3) is provided with a locking screw (7).

3. An underwater oil drilling and production stationary chuck according to claim 1, characterized in that: The protection blocks (9) are equidistantly and annularly distributed on the inner side of the first ring holder (1), the second ring holder (2) and the third ring holder (3), the protection blocks (9) are respectively provided with the same four groups on the first ring holder (1), the second ring holder (2) and the third ring holder (3), and the protection pad (14) is made of rubber material.

4. An underwater oil drilling and production stationary chuck according to claim 2, characterized in that: The limiting column (6) is matched with the limiting groove (13), the locking screw (7) corresponds to the mounting groove (12), and the protection block (9) is fixed with the first ring holder (1), the second ring holder (2) and the third ring holder (3) through the locking screw (7).

5. An underwater oil drilling and production stationary chuck as defined in claim 1, characterized in that: The connecting assembly (8) comprises a fixed block (801), a rotating shaft (802) and a connecting block (803), the outer side of the first ring holder (1) close to the third ring holder (3) is fixedly installed with a fixed block (801), the outer side of the third ring holder (3) close to the first ring holder (1) is provided with a rotating shaft (802), and the fixed block (801) and the rotating shaft (802) are provided with a connecting block (803).

6. An underwater oil drilling and production stationary chuck according to claim 5, characterized in that: The rotating shaft (802) is rotatably installed with the third ring holder (3), and the rotating shaft (802) is provided with the same two groups, and the two groups of rotating shafts (802) are symmetrically distributed on the third ring holder (3).

7. An underwater oil drilling and production stationary chuck as defined in claim 1, characterized in that: The locking assembly (15) comprises a connecting plate one (1501), a connecting plate two (1502), a locking screw two (1503), a lock catch (1504) and a hook ring (1505), the first ring frame (1) is provided with the connecting plate one (1501) close to the outer side of the second ring frame (2), the second ring frame (2) is provided with the connecting plate two (1502) close to the outer side of the first ring frame (1), the side, away from the first ring frame (1) and the second ring frame (2), of the connecting plate one (1501) and the connecting plate two (1502) is provided with the locking screw two (1503), the connecting plate one (1501) and the connecting plate two (1502) are fixed with the first ring frame (1) and the second ring frame (2) through the locking screw two (1503) respectively, the side, away from the first ring frame (1), of the connecting plate one (1501) is fixedly provided with the lock catch (1504), the side, away from the second ring frame (2), of the connecting plate two (1502) is provided with the hook ring (1505).

8. An underwater oil drilling and production stationary chuck according to claim 7, characterized in that: The lock catch (1504) and the hook ring (1505) are provided with the same two groups, and the two groups of the lock catch (1504) and the hook ring (1505) are symmetrically distributed on the connecting plate one (1501) and the connecting plate two (1502) respectively.

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