Well cementation cement head moving and standing tool
The cement head moving and erecting tool driven by a motor, which utilizes the lever principle and pulley combination, solves the problems of multiple people operating and high safety risks in traditional methods, and realizes safe and efficient moving by one or fewer people.
Patent Information
- Application Number
- CN202422752602.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-11-12
AI Technical Summary
Traditional cement head relocation and placement requires multiple operators, posing a high safety risk.
The cement head moving and erecting tool, driven by an electric motor, utilizes a combination of lifting arm, pry arm, tie rod, wheels, motor, pull rope, fixed pulley and movable pulley to achieve single or small-person operation through the lever principle, avoiding direct contact with heavy objects.
This reduces the number of operators, improves safety, lowers the risk of accidents such as crushing and squeezing injuries, and increases operational efficiency.
Smart Images
Figure CN223547633U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of oilfield tools, and more particularly to a cement head moving and vertical placement tool. Background Technology
[0002] Traditional methods for moving and vertically placing cement heads in wells involve manual handling and using fixed cranes. These methods have the following problems:
[0003] (1) Requires a large number of personnel
[0004] Because cement heads are heavy, moving them requires more than three people. Well-equipped warehouses are equipped with indoor cranes, but these require professional operators.
[0005] (2) High security risks
[0006] Traditional methods involve dragging and moving things manually, which can easily lead to injuries such as being squeezed, crushed, or bumped. Utility Model Content
[0007] This application provides a cement head moving and vertical placement tool that can reduce manpower, increase efficiency, and improve safety.
[0008] This application provides a cement head relocation and placement tool, including: a lifting arm, a prying arm, a tie rod, wheels, a motor, a pull rope, a fixed pulley, a movable pulley, and a hook. The lifting arm is inclined. The prying arm is also inclined, with its lower end connected to the lower end of the lifting arm at an angle. The tie rod connects the lifting arm and the prying arm. The wheels are connected to the lower parts of the lifting arm and the prying arm, and can rotate around a longitudinal line. The motor is connected to the lifting arm, and the center line of the motor's output shaft extends longitudinally. One end of the pull rope is connected to the output shaft of the motor, and the other end is connected to the prying arm. The fixed pulley is connected to the prying arm, and its center line extends longitudinally, supporting the middle of the pull rope. The movable pulley is located on the side of the prying arm away from the lifting arm and is suspended from the pull rope; its center line extends longitudinally. The hook is connected to the movable pulley, and the hook can rotate around the center line of the movable pulley. The hook can be used to attach slings for securing the cement head.
[0009] In some embodiments, the upper part of both the lifting arm and the prying arm is connected to a telescopic rod. The lifting arm, the prying arm, and the telescopic rod all have positioning holes, and the lifting arm and the prying arm are connected to the telescopic rod through positioning pins inserted in the positioning holes.
[0010] In some embodiments, the positioning holes provided in the lifting arm include a plurality of holes arranged along the length direction of the lifting arm. The positioning holes provided in the pry arm include a plurality of holes arranged along the length direction of the pry arm.
[0011] In some embodiments, both the lifting arm and the pry arm are tubular structures into which the lower part of a telescopic rod can be inserted.
[0012] In some embodiments, the lifting arm and the pry arm are connected by a movable axis extending longitudinally along the center line, and both the lifting arm and the pry arm can rotate around the movable axis.
[0013] In some embodiments, the tie rod includes: lifting rings, ribs, and turnbuckle tighteners. Two lifting rings are included, each connected to a lifting arm and a pry arm respectively. Two ribs are included, each with one end connected to one of the lifting rings. The turnbuckle tightener has two laterally movable screws, each connected to the other end of one of the two ribs.
[0014] In some embodiments, the tie rods include a plurality of them arranged vertically.
[0015] In some embodiments, the wheels connected to the lifting arm and the pry arm each include a plurality of wheels arranged longitudinally.
[0016] In some embodiments, a support rod is connected to the telescopic rod at the upper part of the pry arm. The support rod forms an angle with the telescopic rod at the upper part of the pry arm, and the support rod is positioned in the plane where the lifting arm and the pry arm are located. Fixed pulleys are connected to both ends of the support rod.
[0017] In some embodiments, the telescopic rod at the top of the pry arm is connected to the support rod via a horizontally arranged reinforcing rod.
[0018] A cement head relocation and placement tool according to an embodiment of this application includes: a lifting arm, a prying arm, a tie rod, wheels, a motor, a pull rope, a fixed pulley, a movable pulley, and a hook. The lifting arm is inclined. The prying arm is also inclined, with its lower end connected to the lower end of the lifting arm at an angle. The tie rod connects the lifting arm and the prying arm. The wheels are connected to the lower parts of the lifting arm and the prying arm, and can rotate around a longitudinal line. The motor is connected to the lifting arm, and the center line of the motor's output shaft extends longitudinally. One end of the pull rope is connected to the output shaft of the motor, and the other end is connected to the prying arm. The fixed pulley is connected to the prying arm, and its center line extends longitudinally, supporting the middle of the pull rope. The movable pulley is located on the side of the prying arm away from the lifting arm and is suspended from the pull rope; its center line extends longitudinally. The hook is connected to the movable pulley, and the hook can rotate around the center line of the movable pulley. The hook can be used to attach slings for securing the cement head. The tool in this application uses a motor, a combination of movable and fixed pulleys, and the lever principle for movement. It requires only one person to operate and one person to assist, thus changing the traditional method of multiple people dragging and lifting, achieving reduced manpower and increased efficiency. The tool uses levers and pulleys to lift and move heavy objects, preventing personnel from directly contacting the load and avoiding injuries such as crushing or slipping injuries caused by slippage or other mishaps, thereby improving safety. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a cross-sectional schematic diagram of the cement head relocation and placement tool in the embodiments of this application. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0022] See Figure 1 The embodiments of this application provide a cement head moving and erecting tool, including: a lifting arm 1, a prying arm 2, a tie rod 3, a wheel 4, a motor 5, a pull rope 6, a fixed pulley 7, a movable pulley 8, and a hook 9.
[0023] The lifting arm 1 is inclined on a horizontally extending vertical plane. The lifting arm 1 is a tubular structure, specifically a circular tube with a diameter of φ100mm × δ10mm. The lifting arm 1 is 1.3m long.
[0024] The upper part of the lifting arm 1 is connected to a telescopic rod 10. The telescopic rod 10 has a specification of φ70mm×δ15mm×1.5m and is made of steel. The lower part of the telescopic rod 10 can be inserted into the tubular structure of the lifting arm 1. Both the lifting arm 1 and the telescopic rod 10 have positioning holes. The positioning holes have a specification of φ15mm. There are multiple positioning holes provided in the lifting arm 1, such as four, arranged along the length direction of the lifting arm 1. The lifting arm 1 is connected to the telescopic rod 10 via positioning pins 11 that pass through the positioning holes. The positioning pins 11 have a specification of φ12mm.
[0025] The pry arm 2 is inclined on a horizontally extending vertical plane. The lower end of the pry arm 2 connects to the lower end of the lifting arm 1, forming an angle with it. The pry arm 2 and lifting arm 1 can be connected in a V-shape, but it can also be designed in square, circular, hollow I-beam, C-shaped, or other forms. The pry arm 2 is a tubular structure, specifically a φ100mm × δ10mm round tube. The pry arm 2 is 1.6m long.
[0026] The upper part of each pry arm 2 is connected to a telescopic rod 10. The telescopic rod 10 has a specification of φ70mm×δ15mm×1.5m and is made of steel. The lower part of the telescopic rod 10 can be inserted into the tubular structure of the pry arm 2. Both the pry arm 2 and the telescopic rod 10 have positioning holes. The positioning holes have a specification of φ15mm. There are multiple positioning holes provided in the pry arm 2, such as three, arranged along the length direction of the pry arm 2. The pry arm 2 is connected to the telescopic rod 10 via positioning pins 11 that pass through the positioning holes. The positioning pins 11 have a specification of φ12mm. In addition, the telescopic rod 10 at the upper part of the pry arm 2 is connected to a support rod 15. The support rod 15 forms an angle with the telescopic rod 10 at the upper part of the pry arm 2, and the support rod 15 is located in the plane where the lifting arm 1 and the pry arm 2 are located. The telescopic rod 10 at the upper part of the pry arm 2 and the support rod 15 are connected by a horizontally arranged reinforcing rod 16.
[0027] With the above settings, the telescopic rod 10 adjusts the length of the two arms of the moving tool through the positioning pin 11 and the positioning hole.
[0028] The lifting arm 1 and the prying arm 2 are connected by a movable shaft 12 extending longitudinally along the center line. Both the lifting arm 1 and the prying arm 2 can rotate around the movable shaft 12 to achieve a foldable design.
[0029] The tie rod 3 connects the lifting arm 1 and the pry arm 2. The tie rod 3 is located inside the angled opening. The tie rod 3 includes: a lifting ring, a rib body 13, and a turnbuckle tightener 14.
[0030] The hook 9 is used to attach slings for securing the cement head. There are two lifting rings. The two rings are respectively connected to the lifting arm 1 and the lever arm 2.
[0031] There are two reinforcing ribs 13. The reinforcing ribs 13 are made of steel wire. One end of each reinforcing rib 13 is connected to one of the two lifting rings.
[0032] The turnbuckle tightener 14 has two screws that can move laterally. The turnbuckle tightener 14 is an OC type M16 type 304 stainless steel turnbuckle tightener 14. The two screws are respectively connected to the other end of the two ribs 13.
[0033] With the above settings, the length of the tie rod 3 is adjustable. By adjusting the tie rod 3, the angle between the lifting arm 1 and the prying arm 2 can be changed, and the tie rod 3 can bear a load of 800 kg.
[0034] The tie rod 3 includes multiple, such as two, arranged vertically to ensure safety.
[0035] Wheels 4 are connected to the lower part of the lifting arm 1 and the lever arm 2. Each wheel 4 connected to the lifting arm 1 and the lever arm 2 comprises multiple wheels arranged longitudinally, such as four. The wheels 4 can be φ20mm metal wheels. That is, two sets of four φ20mm metal wheels 4 are used, with a wheel bearing weight >1000Kg. The wheels 4 can rotate around the longitudinal line, used for movement and as a lever fulcrum.
[0036] Motor 5 is connected to lifting arm 1. The centerline of the output shaft of motor 5 extends longitudinally. Motor 5 is a 700W DC self-locking brushless motor.
[0037] One end of the pull rope 6 is connected to the output shaft of the motor 5, and the other end is connected to the pry arm 2. The pull rope 6 is made of φ10mm steel wire rope.
[0038] The fixed pulley 7 is connected to the lever arm 2. The center line of the fixed pulley 7 extends longitudinally, and the fixed pulley 7 supports the middle of the pull rope 6.
[0039] Fixed pulley 7 is connected to both ends of support rod 15.
[0040] The movable pulley 8 is located on the side of the lever arm 2 away from the lifting arm 1 and is suspended by the pull rope 6. The center line of the movable pulley 8 extends longitudinally.
[0041] The hook 9 is connected to the movable pulley 8, and the hook 9 can rotate around the center line of the movable pulley 8.
[0042] With the above configuration, the motor 5, the pull rope 6, the hook 9 and other structures can realize the lifting and lowering functions.
[0043] The cement head moving and standing tool provided in this application is suitable for oilfield cementing operations, especially cement head maintenance operations. It is used for situations such as standing, transporting, and lying down cement heads during cementing tool maintenance, solving problems such as difficulty in standing, lying down, and transporting cement heads due to their large size and weight, and reducing the risk of personnel injury accidents during cement head maintenance operations.
[0044] The operating steps for the cement head relocation and vertical placement tool in this application are as follows:
[0045] 1. Place the cement head moving and standing tool on a flat and firm ground.
[0046] 2. Adjust the length of lifting arm 1 and pry arm 2 according to the vertical placement height and quality of the target cement head, and fix them firmly with positioning pins 11, and adjust the length of the tool tie rod 3.
[0047] 3. Push the vertical placement tool next to the target cement head, use a sturdy sling to secure the target cement head and hang it on the hook 9 of the vertical placement tool.
[0048] 4. Start motor 5 and tighten the slings for the target cement head.
[0049] 5. Using motor 5 and the lever principle, the target cement head is erected, laid down, or lifted. After the cement head is lifted off the ground using the lever principle, the wheels 4 of the erection tool can be used to transport it to the designated position and then lower it.
[0050] 6. After use, the pull rope 6, hook 9, etc. can be retracted, and the lifting arm 1 and pry arm 2 can be folded to save storage space.
[0051] Example 1
[0052] A φ339.7mm cement head returned from a well was placed at the warehouse entrance after being returned from the site. It needs to be moved to the middle of the warehouse for maintenance.
[0053] Because the 339.7mm cement head is heavy and is in a lying position, which is also the position during maintenance, the required lifting height for this operation is low. It only needs to be lifted off the ground and then moved. The operation steps are as follows:
[0054] Step 1: Unfold the cement head moving and standing tool, adjust the tie rod 3, and adjust the included angle between the lifting arm 1 and the prying arm 2 to about 110°.
[0055] Step 2: Adjust the length of lifting arm 1 to the lowest hole and fix it firmly with positioning pin 11. Adjust the length of pry arm 2 to the third hole and fix it firmly with positioning pin 11.
[0056] Step 3: Push the vertical placement tool next to the target cement head, use a sturdy sling to tie the middle of the target cement head body and hang it on the hook 9 of the vertical placement tool.
[0057] Step 4: Start motor 5, tighten the target cement head lifting sling and lift it 10cm off the ground, and use the lever principle to control the pry arm 2 to maintain balance.
[0058] Step 5: While maintaining balance, use the wheels 4 of the upright tool to transport the cement head to the warehouse maintenance position, and release the motor 5 to slowly lower the cement head.
[0059] Step 6: Release the slings, retract the rope 6, hook 9, etc., fold the lifting arm 1 and the pry arm 2, and put the tools back in their storage positions.
[0060] Example 2
[0061] After the maintenance of a φ339.7mm cement head is completed, it needs to be stood up and put back into the cement head storage rack.
[0062] Because the 339.7mm cement head is heavy and is initially in a lying position but is stored upright, the required lifting height for this operation is high. The operation steps are as follows:
[0063] Step 1: Unfold the cement head moving and standing tool, adjust the tie rod 3, and adjust the included angle between the lifting arm 1 and the prying arm 2 to about 90°.
[0064] Step 2: Adjust the length of lifting arm 1 to the third hole and fix it firmly with positioning pin 11. Adjust the length of pry arm 2 to the fourth hole and fix it firmly with positioning pin 11.
[0065] Step 3: Push the vertical placement tool next to the target cement head, use a sturdy sling to tie the middle of the target cement head body and hang it on the hook 9 of the vertical placement tool.
[0066] Step 4: Start motor 5, tighten the target cement head lifting sling and lift it 10cm off the ground, and use the lever principle to control the pry arm 2 to maintain balance.
[0067] Step 5: While maintaining balance, use the wheels 4 of the upright tool to transport the cement head to the cement head storage location in the warehouse, and release the motor 5 to slowly lower the cement head.
[0068] Step 6: Release the slings and hang them on the top cover of the cement head. Start motor 5 to tighten the slings on the target cement head and slowly erect the cement head. Use the lever principle to control the pry bar 2 to maintain balance.
[0069] Step 7: Rotate the upright tool and use the lever principle to place the cement head on the cement head frame and fix it in place.
[0070] Step 8: Release motor 5 and remove the slings from the cement head.
[0071] Step 9: Retract the rope 6, hook 9, etc., fold the lifting arm 1 and the pry arm 2, and put the tools back in their storage positions.
[0072] Comparative Example 1
[0073] A φ339.7mm cement head returned from a well was placed at the warehouse entrance after being returned from the site. It needs to be moved to the middle of the warehouse for maintenance.
[0074] Because the cement head was too heavy for two people to move, a pry bar was used and several people dragged it to move it into place. Due to the impact with the ground, the cement head was deformed and worn.
[0075] Comparative Example 2
[0076] After the maintenance of a φ339.7mm cement head is completed, it needs to be stood up and put back into the cement head storage rack.
[0077] The gantry crane operator was notified to operate the gantry crane. After the operator arrived, the sling was fixed to the top cover of the cement head and the gantry crane was lifted. However, because the cement head was not placed on the same straight line as the gantry crane guide rail and the cement head storage rack, the lifting and releasing of the cement head required personnel to push or drag it, which did not meet the safety regulations for the use of gantry cranes.
[0078] In summary, traditional operations require 3-4 people to move and place cement heads, while this application only requires 2 people to operate, saving more than 33% of the personnel compared to traditional operations, and also reducing safety risks.
[0079] Specifically, addressing the inefficiency of traditional methods due to the large number of people involved, the tool of this application requires fewer personnel. It utilizes a motor (5 units), seven sets of movable and fixed pulleys, and the lever principle for movement; one person can pry while another assists, thus changing the traditional method of dragging and lifting by multiple people, achieving reduced manpower and increased efficiency. Regarding the high safety risks associated with traditional methods, the tool of this application is safer. It uses levers and pulleys to lift and move heavy objects, preventing personnel from directly contacting the load and avoiding injuries such as crushing or slipping injuries caused by slippage during handling, thereby improving safety. This tool solves the safety problems of traditional methods while improving application efficiency, surpassing current mainstream tools and devices. It is convenient, fast, safe, easy to operate, and requires minimal space.
[0080] In summary, the cement head relocation and placement tool provided in this application solves the current situation in the oil industry where cement head maintenance mainly relies on overhead cranes placed in warehouses or entirely on manual labor. It has no special requirements for warehouse space or height, requires fewer personnel, and is easy to operate, avoiding the high risks of injury from impacts, crushing, and damage to cement heads caused by brute force during traditional methods. Traditional methods require 3-4 people to move and place cement heads, while this application only requires 2 people, saving more than 33% of personnel compared to traditional methods and reducing safety risks.
[0081] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0082] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A tool for moving and placing cement heads in wells, characterized in that, include: The lifting arm is designed to be tilted. The pry arm is inclined, and the lower end of the pry arm is connected to the lower end of the lifting arm, forming an angle with the lifting arm; A tie rod connects the lifting arm and the prying arm; A wheel is connected to the lower part of the lifting arm and the pry arm, and the wheel is rotatable about a longitudinal line; A motor is connected to the lifting arm, and the centerline of the motor's output shaft extends longitudinally. The pull rope is connected at one end to the output shaft of the motor and at the other end to the pry arm; A fixed pulley is connected to the lever arm, the center line of the fixed pulley extends longitudinally, and the fixed pulley supports the middle part of the pull rope; A movable pulley is located on the side of the pry arm away from the lifting arm and is suspended from the pull rope. The centerline of the movable pulley extends longitudinally. A hook is connected to the movable pulley, and the hook can rotate around the center line of the movable pulley. The hook can be used to attach slings for securing cement heads.
2. The cement head relocation and placement tool as described in claim 1, characterized in that, The upper part of the lifting arm and the prying arm are both connected to a telescopic rod. The lifting arm, the prying arm and the telescopic rod all have positioning holes. The lifting arm and the prying arm are connected to the telescopic rod through positioning pins that pass through the first positioning hole.
3. The cement head relocation and placement tool as described in claim 2, characterized in that, The positioning holes provided on the lifting arm include a plurality of holes arranged along the length direction of the lifting arm; The positioning holes provided in the pry arm include a plurality of holes arranged along the length direction of the pry arm.
4. The cement head relocation and placement tool as described in claim 2, characterized in that, Both the lifting arm and the pry arm are tubular structures into which the lower part of the telescopic rod can be inserted.
5. The cement head relocation and placement tool as described in claim 1, characterized in that, The lifting arm and the prying arm are connected by a movable shaft extending longitudinally along the center line, and both the lifting arm and the prying arm can rotate around the movable shaft.
6. The cement head relocation and placement tool as described in claim 1, characterized in that, The tie rod includes: The lifting ring includes two rings, which are respectively connected to the lifting arm and the lever arm; The ribs include two ribs, one end of which is respectively connected to the two lifting rings; The turnbuckle tightener has two screws that can move laterally, and the two screws are respectively connected to the other end of the two ribs.
7. The cement head relocation and placement tool as described in claim 1, characterized in that, The tie rods include multiple ones arranged vertically.
8. The cement head relocation and placement tool as described in claim 1, characterized in that, The wheels connected to the lifting arm and the pry arm each include a plurality of wheels arranged longitudinally.
9. The cement head relocation and placement tool as described in claim 2, characterized in that, The telescopic rod at the upper part of the prying arm is connected to a support rod, the support rod forms an angle with the telescopic rod at the upper part of the prying arm, and the support rod is arranged in the plane where the lifting arm and the prying arm are located; The fixed pulleys are connected to both ends of the support rod.
10. The cement head relocation and placement tool as described in claim 9, characterized in that, The telescopic rod at the upper part of the pry arm is connected to the support rod via a horizontally arranged reinforcing rod.