Novel multifunctional workover rig

Abstract

The utility model discloses a novel multifunctional workover rig, and relates to the technical field of workover rigs, the novel multifunctional workover rig comprises a workover rig main body, a supporting mechanism, a fixing mechanism and the like, the supporting mechanism of the device can change the positions of a second hydraulic rod and a chassis by stretching out and drawing back a first hydraulic rod, and if soft soil is under the chassis, the second hydraulic rod can stretch out and draw back; the base plate can be driven to move by stretching out and drawing back the first hydraulic rod so that the base plate can be far away from soft soil and move to the position over hard soil, then supporting operation can be conducted, and the practicability of the device is improved; when the base plate is replaced, the base plate can be unfixed only by pulling the pull ring outwards to move the insertion piece out of the insertion groove, and therefore the base plate is easy to replace and convenient to replace.

Description

Technical Field

[0001] The utility model relates to the technical field of well repair machines, in particular to a novel multifunctional well repair machine. Background Art

[0002] As an important equipment for oilfield workover operations, workover rigs play an important role in increasing national oil production and improving economic benefits. As the oil industry has higher and higher requirements for high efficiency and low cost in workover operations, the trend of workover rigs developing in the direction of lightness and multi-function is becoming more and more obvious. The development of a multi-functional workover rig has become one of the development directions of workover rigs.

[0003] For example, the patent website discloses an integrated heavy-duty sand flushing well repair machine (publication number: CN220101218U). This device uses hydraulic front legs and hydraulic rear legs to lift the entire well repair machine off the ground. However, if the soil directly under the legs is soft soil, the legs will sink into the soft soil, causing the device to tilt and even topple over in severe cases. Therefore, technicians in this field have proposed a new multifunctional well repair machine. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a novel multifunctional well repairing machine. The supporting mechanism of the device can change the supporting point to solve the problems in the above background.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a new multifunctional workover rig, comprising:

[0006] A workover rig body, wherein the workover rig body is used for well workover;

[0007] A supporting mechanism, wherein the supporting mechanism is used to support the main body of the workover rig to lift it off the ground;

[0008] The support mechanism comprises four rectangular mounting seats mounted on the main body of the workover rig, a first hydraulic rod is mounted on the side of each mounting seat, an end of each first hydraulic rod passes through the mounting seat and is mounted with a mounting block, a second hydraulic rod is mounted on the lower surface of each mounting block, and a chassis is arranged at the lower end of each second hydraulic rod;

[0009] The fixing mechanism is used to connect and fix components such as the supporting mechanism.

[0010] As a further technical solution of the utility model, the fixing mechanism includes a fixing seat installed at the lower end of each second hydraulic rod and located above the chassis.

[0011] As a further technical solution of the utility model, a slot is provided at the center of the lower surface of each fixing seat, and a cavity is provided inside each fixing seat on one side of the slot.

[0012] As a further technical solution of the utility model, a limit plate is provided in each of the cavities, a group of pull rods are installed on the side of each of the limit plates, the ends of each group of two pull rods extend to the outside of the fixed seat and are installed with pull rings, and a spring is sleeved on the surface of the pull rod in each of the cavities.

[0013] As a further technical solution of the utility model, each of the card slots is provided with a card part whose lower surface is fixedly connected to the chassis, a group of slots are opened on the side of each of the card parts, and each of the slots is provided with a plug-in whose end extends into the cavity and is fixedly connected to the limit plate.

[0014] Beneficial Effects

[0015] The utility model provides a new multifunctional well repairing machine. Compared with the prior art, it has the following beneficial effects:

[0016] 1. A new type of multifunctional well repairing machine. The supporting mechanism of the device can change the position of the second hydraulic rod and the chassis by extending and retracting the first hydraulic rod. If there is soft soil directly below the chassis, the chassis can be driven to move away from the soft soil to directly above the hard soil by extending and retracting the first hydraulic rod. After that, the supporting operation can be carried out, which increases the practicality of the device.

[0017] 2. A new type of multifunctional well repairing machine. The device fixes the chassis on the second hydraulic rod through a fixing mechanism. When replacing the chassis, it is only necessary to pull the pull ring outward to move the plug-in out of the slot to release the fixation of the chassis, thereby making the replacement of the chassis simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a new multifunctional workover rig;

[0019] Figure 2 It is a cross-sectional view of a new multifunctional workover rig;

[0020] Figure 3 This is a disassembled diagram of the chassis components of a new multifunctional workover rig;

[0021] Figure 4 The figure is a cross-sectional view of a fixing seat of a new multifunctional well repairing machine.

[0022] In the figure: 1. main body of the well repair machine; 2. mounting seat; 3. first hydraulic rod; 4. mounting block; 5. second hydraulic rod; 6. chassis; 7. fixing seat; 8. slot; 9. cavity; 10. limit plate; 11. plug-in; 12. pull rod; 13. spring; 14. pull ring; 15. clamp; 16. slot. DETAILED DESCRIPTION

[0023] The present disclosure is further described in detail below in conjunction with the accompanying drawings and implementations. It is understood that the specific implementations described herein are only used to explain the relevant content, rather than to limit the present disclosure. It should also be noted that, for ease of description, only the parts related to the present disclosure are shown in the accompanying drawings.

[0024] Embodiment 1:

[0025] Figure 1 This is a structural schematic diagram of a new multifunctional workover rig;

[0026] Figure 2 It is a cross-sectional view of a new multifunctional workover rig;

[0027] Figure 3 This is a disassembled diagram of the chassis components of a new multifunctional workover rig;

[0028] Figure 4 It is a cross-sectional view of a fixing seat of a new multifunctional workover rig;

[0029] like Figure 1-4 As shown, a novel multifunctional workover rig disclosed in the present invention may include: a workover rig body 1, a supporting mechanism, a fixing mechanism and other components;

[0030] The workover rig body 1 is used for performing workover operations;

[0031] like Figure 1-4 As shown, the support mechanism includes a mounting seat 2, a first hydraulic rod 3, a mounting block 4, a second hydraulic rod 5, and a chassis 6;

[0032] Four mounting seats 2 are installed in a rectangular shape on the upper surface of the workover rig body 1, each first hydraulic rod 3 is installed on the side of the corresponding mounting seat 2, each mounting block 4 is installed on the end of the corresponding first hydraulic rod 3 penetrating the mounting seat 2, each second hydraulic rod 5 is installed on the lower surface of the corresponding mounting block 4, and each chassis 6 is arranged at the lower end of the corresponding second hydraulic rod 5;

[0033] When in use, the four second hydraulic rods 5 are extended to drive the chassis 6 to descend and contact the ground, and then the four second hydraulic rods 5 continue to extend to drive the workover rig body 1 to leave the ground, thereby supporting the entire workover rig body 1. At the same time, if the soil directly below the chassis 6 is too soft, the first hydraulic rod 3 can be extended to drive the second hydraulic rod 5 and the chassis 6 thereon to move so that the chassis 6 moves out of the soft soil until the chassis 6 moves to the hard soil. After that, the support operation can be continued through the above operation.

[0034] like Figure 1-4 As shown, the fixing mechanism includes a fixing seat 7, a card slot 8, a cavity 9, a limit plate 10, a plug-in 11, a pull rod 12, a spring 13, a pull ring 14, a card 15, and a slot 16;

[0035] Each fixing seat 7 is installed at the lower end of the corresponding second hydraulic rod 5, each slot 8 is opened at the center of the lower surface of the corresponding fixing seat 7, each cavity 9 is opened inside the corresponding fixing seat 7 and is on one side of the slot 8, each limit plate 10 is arranged in the corresponding cavity 9, each group of pull rods 12 is arranged on the side of the corresponding limit plate 10, each pull ring 14 is installed at the end of the corresponding group of pull rods 12 extending outside the fixing seat 7, each clamping member 15 is arranged in the corresponding slot 8 and the lower surface is fixedly connected to the chassis 6, each spring 13 is sleeved on the corresponding pull rod 12, each group of two slots 16 is opened on the side of the corresponding clamping member 15, each plug-in 11 is arranged in the corresponding slot 16 and the end is fixedly connected to the limit plate 10 in the salinized cavity 9;

[0036] When disassembling the chassis 6, the outer pull ring 14 drives the limit plate 10 to move through the pull rod 12. The moving limit plate 10 compresses the spring 13 and drives the two plug-ins 11 to move out of the slot 16 and into the cavity 9, so that the fixation of the card 15 can be released. Then, the slot 16 connected to the card 15 is removed from the fixing seat 7. When installing, the outer pull ring 14 allows the two plug-ins 11 to enter the pull rod 12 through the above operation, and the card 15 of the chassis 6 is inserted into the card slot 8. When it is fully inserted, the two slots 16 on the card 15 are just aligned with the two plug-ins 11. Then, the pull ring 14 is released to allow the two springs 13 to rebound and drive the two plug-ins 11 to insert into the two slots 16, thereby fixing the chassis 6 on the fixing seat 7;

[0037] Embodiment 2:

[0038] The main body 1 of the workover rig is provided with an inclined tie rod, which is locked and connected with the cylinder or oil cylinder on the top of the derrick. The locking connection can be fixed and loosened. The angle of the derrick can be adjusted after it is erected, which can adapt to vertical and inclined well workover operations. In summary, the main body 1 of the workover rig is mainly composed of a universal chassis, a transmission system, a solvent injection system, a hydraulic system, an electrical system, a gas circuit system, and a lifting system. The transmission system takes out the chassis power through the transfer case, transmits the power to the solvent injection system through the transmission shaft, and transmits the power to the hydraulic system through the gear pump. The system transmission is stable and reliable with high efficiency. The solvent injection system injects the sand flushing agent in the solution tank into the oil well through a three-cylinder plunger pump (sand flushing pump), with fast injection speed and stable pressure. The lifting system includes a hydraulic winch, a big hook, a derrick, etc. It is powered by a hydraulic winch and lifts and lowers the big hook through a wire rope. The system has a fast lifting speed and runs smoothly. The hydraulic, electrical, and gas circuit systems are the control systems of the equipment. The control system is safe, reliable, advanced, and practical.

[0039] Working principle: When the equipment is used for sand flushing operations in screw pump type heavy oil wells, it is divided into two process flows: positive circulation and reverse circulation. The positive circulation is to lift the rotor in the screw pump through the lifting system, and then inject the solvent used for sand flushing and unblocking operations into the oil pipe through the solvent injection system to achieve unblocking and sand flushing operations. The reverse circulation is to inject the solvent used for sand flushing and unblocking operations into the annular space of the oil pipe and casing through the solvent injection system, and the solvent injected into the well is sucked to the ground through the screw pump in the oil well to achieve sand flushing and pressure reduction operations in the oil well. The positive circulation is mainly suitable for the situation where the oil well is blocked and the screw pump cannot work. The reverse circulation is mainly suitable for the process flow implemented to prevent oil well blockage when the oil well pressure increases. When the equipment is used for well repair operations, it can carry out minor repair operations with a rated load of 15 tons.

[0040] In the description of this specification, the description with reference to the terms "one embodiment / method", "some embodiments / methods", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment / method or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments / methods or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments / methods or examples described in this specification and the features of different embodiments / methods or examples, unless they are contradictory.

[0041] In addition, 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 the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0042] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present disclosure, and are not intended to limit the scope of the present disclosure. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. A new multifunctional workover rig, characterized in that: include: A workover rig body (1), the workover rig body (1) being used for well workover; A supporting mechanism, the supporting mechanism being used to support the main body (1) of the well repair machine to lift it off the ground; The support mechanism comprises four rectangular mounting seats (2) mounted on the workover rig body (1), a first hydraulic rod (3) being mounted on the side of each mounting seat (2), an end of each first hydraulic rod (3) passing through the mounting seat (2) and being mounted with a mounting block (4), a second hydraulic rod (5) being mounted on the lower surface of each mounting block (4), and a chassis (6) being provided at the lower end of each second hydraulic rod (5); The fixing mechanism is used to connect and fix components such as the supporting mechanism.

2. A novel multifunctional well repairing machine according to claim 1, characterized in that: The fixing mechanism comprises a fixing seat (7) installed at the lower end of each second hydraulic rod (5) and located above the chassis (6).

3. A novel multifunctional well repairing machine according to claim 2, characterized in that: A slot (8) is provided at the center of the lower surface of each fixing seat (7), and a cavity (9) is provided inside each fixing seat (7) on one side of the slot (8).

4. A novel multifunctional workover rig according to claim 3, characterized in that: A limit plate (10) is provided in each of the cavities (9), a group of pull rods (12) are installed on the side of each of the limit plates (10), the ends of each group of two pull rods (12) extend to the outside of the fixed seat (7) and are installed with pull rings (14), and a spring (13) is sleeved on the surface of the pull rod (12) in each of the cavities (9).

5. A novel multifunctional well repairing machine according to claim 4, characterized in that: Each of the card slots (8) is provided with a card member (15) whose lower surface is fixedly connected to the chassis (6), and each of the card members (15) is provided with a group of slots (16) on the side surface, and each of the slots (16) is provided with a plug-in unit (11) whose end extends into the cavity (9) and is fixedly connected to the limit plate (10).

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