Vertical drill rod box with bumping locking function

Abstract

This invention discloses a vertical drill pipe box with a pressing and locking function, comprising a bottom skid, one end of which is connected to a mounting base at opposite ends, and the other end of which is connected to support legs at opposite sides. The opposite sides of the bottom skid are connected to the mounting base via tilting hydraulic cylinders. Walls are provided around the bottom skid, forming the drill pipe box body. Several finger beams are arranged at both ends of the drill pipe box body, and a pipe column is installed between adjacent finger beams. Upper and lower pipe column fixing devices are respectively provided at both ends of the drill pipe box body, securing the two ends of the pipe column. Ejection hydraulic cylinders are provided on opposite sides of the drill pipe box body, with rollers installed at the piston rod ends of the ejection hydraulic cylinders. This invention solves the problems of existing drill pipe boxes having a large footprint when horizontally arranged, requiring numerous pipe column handling devices and complex transmission processes when converting the drill pipe from a horizontal to a vertical state.

Description

Technical Field

[0001] This invention belongs to the technical field of oil drilling and production equipment, and relates to a vertical drill pipe box with a pressing and locking function. Background Technology

[0002] During drilling, the drill string needs to be transported from the surface to the drilling platform. Conventional automated drilling rigs typically use hydraulic pipe racks or drill pipe boxes to store the drill string. The drill string is then lifted or suspended by hydraulic cylinders and sent to the power catwalk, from where it is transported to the drilling platform. To reduce the workload of relocating drilling rigs and to automate operations, drill pipe box storage has become a trend. Currently, there are generally two types of drill pipe boxes: one is a drill pipe sled filled with drill pipes, with multiple sleds connected as a whole. Tracks are designed at both ends of the sled and on the catwalk, and a truss-type crane is installed on the tracks. The crane lifts the drill pipes from the sleds and places them on the catwalk. The other type is a hydraulic cylinder lifting drill pipe box, where several stops are placed on each layer of drill pipes. Two to three lifting beams are installed at the bottom of the drill pipe box. The hydraulic cylinders lift the lifting beams to raise and tilt the drill pipe rack, causing the drill string to roll onto the catwalk, from where it is transported to the drilling platform. The disadvantages of these two types of drill pipe boxes are: the drill pipe box is placed horizontally, which takes up a large area; the drill pipe is initially in a horizontal state, the power cat walkway transports the drill pipe to the drilling platform, and then the top drive lifting ring with a clamp on the lower end engages the drill pipe, pulling the drill pipe into a vertical state and inserting it into the mouse hole or wellhead. The entire string processing requires a lot of equipment, the transmission process is complicated, and the string processing efficiency is low. Summary of the Invention

[0003] The purpose of this invention is to provide a vertical drill pipe box with a pressing and locking function, which solves the problems of existing technologies where horizontally arranged drill pipe boxes occupy a large area, and the drill pipe needs multiple string processing devices and complex transmission processes when changing from a horizontal to a vertical state.

[0004] The technical solution adopted in this invention is a vertical drill pipe box with a pressing and locking function, including a bottom skid. One end of the bottom skid is connected to the mounting base at both ends, and the other end of the bottom skid is connected to the support legs at both ends. The opposite sides of the bottom skid are connected to the mounting base by a tilting hydraulic cylinder. Walls are set around the bottom skid, and the area enclosed by the walls constitutes the drill pipe box body. Several finger beams are arranged at both ends of the drill pipe box body, and a pipe column is installed between two adjacent finger beams. An upper pipe column fixing device and a lower pipe column fixing device are respectively provided at both ends of the drill pipe box body, which respectively lock the two ends of the pipe column. An ejection hydraulic cylinder is provided at both ends of the drill pipe box body, and a roller is installed at the piston rod end of the ejection hydraulic cylinder.

[0005] The invention is further characterized by:

[0006] The lower tube column fixing device includes several layers of I-beams, and several sets of insertion tube assemblies are arranged on each layer of I-beams;

[0007] Each cannula assembly includes a lower cannula, which is inserted into the I-beam. A shock-absorbing spring is installed between the lower cannula and the I-beam, and the tail end of the lower cannula is secured to the I-beam with a nut.

[0008] The upper tube column fixing device includes a slide rail, which is fixed to the wall. A retaining ring is fixed to one end of the slide rail. One end of the retaining ring is connected to a tension spring. The other end of the tension spring is connected to one end of the upper tube. One end of the upper tube is connected to one end of a hook. The other end of the hook is connected to the retaining ring. A groove is engraved on the surface of the upper tube, and the hook can slide along the groove.

[0009] A position sensor is installed on the slide. When the upper tube is in the two extreme positions of extension and retraction, the position status of the upper tube is displayed by impacting the position sensor.

[0010] The outrigger includes a protective tube. The upper part of the protective tube is hinged to the end of the cylinder of the lifting hydraulic cylinder by a pin. The end of the piston rod of the lifting hydraulic cylinder is hinged to the outrigger. An mounting plate is installed on the protective tube and is bolted to the bottom skid.

[0011] Rollers are installed on the lugs of the tilting cylinder, and a track is arranged on the mounting base, which cooperates with the rollers; a stop block is also installed on the mounting base. When the tilting cylinder is in a vertical state, the stop block blocks the rollers, and the pin is inserted into the reserved insertion tube in the mounting base to block the other side of the rollers.

[0012] A movable door is provided on one side of the drill pipe box.

[0013] The beneficial effects of this invention are that the vertical drill pipe box with a pressing and locking function provided by this invention solves the problems of large footprint of horizontally arranged drill pipe boxes, numerous string handling equipment required for converting drill pipes from horizontal to vertical states, complex transmission processes, and low string handling efficiency in the prior art. The string is initially in a vertical state, and the vertical pipe delivery robot directly grabs the string from the drill pipe box and transports it to the drilling platform. Through program control, the drill pipe box, pipe delivery robot, and mouse hole connector can be linked for coordinated operation. Fewer equipment is required for string handling, resulting in high efficiency. The drill pipe box mounting base is connected to the base of the rig, allowing the drill pipe box to slide together with the entire drilling rig, meeting the requirements of cluster well operations. The drill pipe box can be hoisted as a single unit or transported by a self-sled when no crane is available. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the vertical drill rod box with a pressing and locking function according to the present invention;

[0015] Figure 2 This is a schematic diagram of the horizontal structure of the vertical drill pipe box with the contact and locking function of the present invention;

[0016] Figure 3 This is a cross-sectional structural diagram of the vertical drill pipe box with the contact-locking function of the present invention;

[0017] Figures 4(a) and (b) are schematic diagrams of the lower pipe column fixing device in the vertical drill pipe box with the impact locking function of the present invention.

[0018] Figure 5 This is a schematic diagram of the upper pipe column fixing device in the vertical drill pipe box with the contact and locking function of the present invention;

[0019] Figure 6 This is a schematic diagram of the support leg structure in the vertical drill pipe box with the contact and locking function of the present invention;

[0020] Figure 7 This is a schematic diagram of the extension and retraction of the tilting hydraulic cylinder in the vertical drill pipe box with the contact and locking function of the present invention;

[0021] Figure 8 This is a schematic diagram of the working state of the vertical drill pipe box with the contact and locking function of the present invention.

[0022] In the diagram, 1. bottom skid, 2. tow bar, 3. boom, 4. wall, 5. movable door, 6. lower tube column fixing device, 7. upper tube column fixing device, 8. tilting cylinder, 9. ejection cylinder, 10. support leg, 11. finger beam, 12. mounting base, 13. ear seat I, 14. ear seat II, 15. roller, 16. tube column, 17. nut, 18. lower insertion tube, 19. shock-absorbing spring, 20. I-beam, 21. slide rail, 22. upper insertion tube, 23. tension spring, 24. hook, 25. retaining ring, 26. protective tube, 27. lifting cylinder, 28. support foot, 29. track, 30. stop block, 31. roller, 32. pin, 33. chute. Detailed Implementation

[0023] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0024] The present invention provides a vertical drill pipe box with a contact-locking function, such as... Figures 1-3As shown, it includes a base skid 1, with a self-backed skid head structure at one end and a tow bar 2; lifting bars 3 are installed at both ends; it can meet various transportation methods such as self-backed skid transport, hoisting, and ground towing. The base skid 1 is surrounded by walls 4 made of steel profiles (walls 4 include two transverse walls A and two longitudinal walls B). A gap is left in the middle of one longitudinal wall B, and a movable door 5 is installed in the gap. The movable door 5 is hinged to the walls 4 at both ends. After the movable door 5 is removed, it is convenient for forklifts to enter and exit, and the pipe column 16 is installed into the drill pipe box. One of the transverse walls A is provided with a set of lower pipe column fixing devices 6, which are respectively hinged to both ends of a longitudinal wall B; another transverse wall A is provided with a set of upper pipe column fixing devices 7, which are respectively hinged to both ends of another longitudinal wall B; the bottom skid 1 is equipped with a tilting cylinder 8 at both ends, one end of the tilting cylinder 8 is hinged to the mounting base 12, and the lug at the end of the bottom skid 1 is hinged to the lug II 14 arranged on the mounting base 12. When the drill pipe box is vertical relative to the mounting base 12 by the extension of the tilting cylinder 8, the lug at the end of the wall 4 is hinged to the lug I 13.

[0025] Both ends of the two longitudinal walls B are simultaneously fixed to the ejector cylinder 9 using lugs and clamps. Rollers 15 are installed at the ends of the ejector cylinder 9. Mounting plates are provided on both sides of the end of the bottom skid 1 and fixed to the support legs 13. Several finger beams 11 are arranged laterally at both ends inside the drill pipe box. A pipe column 16 is installed between two finger beams 11 in the height direction. The lower pipe column fixing device 6 and the upper pipe column fixing device 7 clamp the two ends of the pipe column 16.

[0026] As shown in Figures 4(a) and (b), Figure 4(b) is a cross-sectional view along direction AA in Figure 4(a). The lower pipe column fixing device 6 is a frame structure. Several insertion pipe assemblies are arranged on each layer of I-beam 20. The insertion pipe assembly is set opposite to the pipe column 16 joint. As shown in AA, the I-beam 20 has several holes. The lower insertion pipe 18 passes through the I-beam 20. A shock-absorbing spring 19 is installed between the lower insertion pipe 18 and the I-beam 20. The tail of the lower insertion pipe 18 is threaded. A nut 17 is installed at the tail of the lower insertion pipe 18 to fix the lower insertion pipe 18 on the I-beam 20 and pre-tighten the shock-absorbing spring 19.

[0027] like Figure 5 As shown, the upper tube column fixing device 7 includes a slide 21, which is fixed to the transverse wall. A retaining ring 25 is fixed to the end of the slide 21. The retaining ring 25 is provided with an ear plate and connected to a tension spring 23. The other end of the tension spring 23 is connected to the end of the upper tube 22. The upper tube 22 slides along the track inside the slide 21. The hook 24 is hinged to the retaining ring 25. The surface of the upper tube 22 is engraved with a groove 33.

[0028] When the tension spring 23 is compressed, the hook 24 runs along the abc slide, and the upper tube 22 slides along the track inside the slide 21 in the direction of spring compression, and the hook 24 is hooked at point c.

[0029] When the tension spring 23 extends, the hook 24 runs along the cda slide, and the upper insertion tube 22 slides along the track inside the slide 21 in the direction of spring extension, with the hook 24 hooked at point a; the abc slide is deeper than the cda slide. The straight-line distance from point a to point c is the extension distance of the upper insertion tube 22, and the extension distance of the upper insertion tube 22 is greater than the effective length e of the lower insertion tube 18.

[0030] A position sensor is installed on the slide 21. When the upper insertion tube 22 is in the two extreme positions of extension and retraction, the position status of the upper insertion tube 22 is displayed by impacting the position sensor.

[0031] like Figure 6 As shown, the support leg 10 includes a protective tube 26. The upper part of the protective tube 26 is hinged to the end of the cylinder of the lifting hydraulic cylinder 27 by a pin. The end of the piston rod of the lifting hydraulic cylinder 27 is hinged to the support leg 28. An installation plate is provided on the protective tube 26 and is bolted to the bottom skid 1. By using the form of the protective tube 26, when the drill pipe box is flipped, the protective tube 26 bears the lateral force, avoiding the piston rod of the lifting hydraulic cylinder 27 from being directly subjected to the lateral force and deforming.

[0032] like Figure 7 As shown, a roller 31 is installed on the lug of the tilting cylinder 8, and a track 29 is arranged on the mounting base 12. When the drill pipe box is in a vertical state, the ejector cylinder 9 extends, and the roller 15 presses against the tilting cylinder 8. The hinge pin between the tilting cylinder 8 and the mounting base 12 is removed, and the tilting cylinder 8 retracts. When the end of the tilting cylinder 8 reaches the upper plane of the mounting base 12, the roller 31 slides along the track 29, and the roller 15 slides back with the roller 31. A stop block 30 is installed on the mounting base 12. When the tilting cylinder 8 is in a vertical state, the stop block 30 blocks the roller 31, and the pin 32 is inserted into the reserved insertion tube of the mounting base 12, blocking the other side of the roller 31.

[0033] like Figure 1 , Figure 2 , Figure 8 As shown, the working process of the vertical drill pipe box with a pressing and locking function of the present invention is as follows: the drill pipe box is placed on the ground, the movable door 5 and the lower pipe column fixing device 6 are removed, the upper insertion tube 22 is in the retracted state, the forklift loads the pipe column 16 between the finger beams 11, after the installation is completed, the lower pipe column fixing device 6 is installed, the lower insertion tube 18 is inserted into the pipe column 16, the upper pipe column fixing device 7 is pressed, so that the upper insertion tube 22 extends out and is inserted into the pipe column 16, so that the two ends of the pipe column 16 are locked and fixed in the drill pipe box.

[0034] The drill pipe box is hoisted onto the mounting base 12 and hinged to the ear seat II 14. The hinge pin connecting the tilting cylinder 8 and the mounting base 12 is connected, and the hydraulic system is connected. The outrigger 10 extends, and the support foot 28 touches the ground. The tilting cylinder 8 extends to make the drill pipe box vertical. The hinge pin connecting the drill pipe box and the ear seat I 13 is connected. The outrigger 10 retracts. The hinge pin connecting the tilting cylinder 8 and the mounting base 12 is removed. The ejector cylinder 9 extends, and the roller 15 presses against the tilting cylinder 8. When the end of the tilting cylinder 8 reaches the upper plane of the mounting base 12, the roller 31 slides along the track 29. When the tilting cylinder 8 is vertical, the stop block 30 blocks the roller 31, and the pin 32 is inserted into the mounting base 12 to block the other side of the roller 31.

[0035] Mounting base 12 is fixed to the front base of the base by ear plates. As needed, several drill pipe boxes can be installed on one mounting base 12. This figure shows two drill pipe boxes installed.

[0036] The method of using the vertical drill pipe box with impact locking function of this invention is as follows: the drill pipe box and the vertical pipe delivery robot work together. The vertical pipe delivery robot is arranged at the front end of the base, on the center line of the wellhead. The vertical pipe delivery robot can grab the pipe string 16 from the drill pipe boxes on both sides by longitudinal sliding and rotation. When the pipe delivery robot grabs the pipe string 16, it impacts the upper insertion pipe 22 upwards. The upper insertion pipe 22 retracts along the slide 21, and the hook 24 hooks point c. The upper part of the pipe string 16 is free, and the pipe delivery robot takes the pipe string 16 out of the drill pipe box and sends it to the drilling platform. When the pipe delivery robot grabs the pipe string 16 and sends it into the drill pipe box, the pipe string 16 is inserted into the lower insertion pipe 18. The pipe string 16 impacts the upper insertion pipe 22 upwards, causing the upper insertion pipe 22 to extend. The mounting base 12 is installed on the drilling rig rail and can slide together with the main unit to meet the requirements of cluster well operations.

[0037] After the work is completed, remove pin 32, extend cylinder 9, and roller 15 presses against tilting cylinder 8, sliding outwards from mounting base 12. Connect the tilting cylinder 8 to the hinge pin of mounting base 12, remove the hinge pin between drill rod box and lug I 13, and tilting cylinder 8 retracts to bring drill rod box to a horizontal position. Extend support leg 10 and support foot 28 touch the ground. With mounting base 12 removed, the remaining units form a complete transport unit, enabling overall transport.

[0038] This invention, a vertical drill pipe box with a pressure-locking function, solves the problems of existing technologies, such as the large footprint of horizontally arranged drill pipe boxes, the need for numerous string handling equipment when converting drill pipes from horizontal to vertical, complex transmission processes, and low string handling efficiency. The string is initially vertical; a vertical pipe delivery robot directly grabs the string from the drill pipe box and transports it to the drilling platform. Through program control, the power drill pipe box, pipe delivery robot, and mouse hole connector can be linked for coordinated operation. Fewer equipment is needed for string handling, resulting in higher efficiency. The drill pipe box mounting base is connected to the base, allowing the drill pipe box to slide together with the drilling rig, meeting the requirements of cluster well operations. The drill pipe box can be hoisted as a single unit or transported via a self-sled when a crane is unavailable.

Claims

1. A vertical drill pipe box with a contact-locking function, characterized in that: The system includes a bottom skid (1), one end of which is connected to the mounting base (12) at opposite ends, and the other end of which is connected to the support legs (10) at opposite sides. The opposite sides of the bottom skid (1) are connected to the mounting base (12) by a tilting cylinder (8). The bottom skid (1) is surrounded by walls (4), and the area enclosed by the walls (4) constitutes the drill rod box body. Several finger beams (11) are arranged at both ends inside the drill rod box body, and a pipe column (16) is installed between two adjacent finger beams (11). The drill rod box body is also provided with an upper pipe column fixing device (7) and a lower pipe column fixing device (6) at both ends. The upper pipe column fixing device (7) and the lower pipe column fixing device (6) respectively hold the two ends of the pipe column (16). The drill rod box body is provided with an ejector cylinder (9) at opposite sides, and a roller (15) is installed at the piston rod end of the ejector cylinder (9). The lower tube column fixing device (6) includes several layers of I-beams (20), and several sets of insertion tube assemblies are arranged on each layer of I-beams (20); Each cannula assembly includes a lower cannula (18), which is inserted into the I-beam (20), and a shock-absorbing spring (19) is installed between the lower cannula (18) and the I-beam (20). The tail of the lower cannula (18) is secured to the I-beam (20) by a nut (17). The upper tube column fixing device (7) includes a slide (21), which is fixed to the wall (4). A retaining ring (25) is fixed to one end of the slide (21). The retaining ring (25) is connected to one end of a tension spring (23). The other end of the tension spring (23) is connected to one end of the upper tube (22). One end of the upper tube (22) is connected to one end of a hook (24). The other end of the hook (24) is connected to the retaining ring (25). A groove (33) is engraved on the surface of the upper tube (22). The hook (23) can slide along the groove (33).

2. The vertical drill pipe box with a pressing and locking function according to claim 1, characterized in that: A position sensor is installed on the slide (21). When the upper tube (22) is in the two extreme positions of extension and retraction, the position status of the upper tube (22) is displayed by impacting the position sensor.

3. The vertical drill pipe box with a pressing and locking function according to claim 1, characterized in that: The outrigger (10) includes a protective tube (26). The upper part of the protective tube (26) is hinged to the cylinder end of the lifting cylinder (27) by a pin. The piston rod end of the lifting cylinder (27) is hinged to the outrigger (28). An mounting plate is provided on the protective tube (26) and is bolted to the bottom skid (1).

4. The vertical drill pipe box with a pressing and locking function according to claim 1, characterized in that: Rollers (31) are installed on the lugs of the tilting cylinder (8), and a track (29) is arranged on the mounting base (12). The track (29) cooperates with the rollers (31). A stop block (30) is also installed on the mounting base (12). When the tilting cylinder (8) is in a vertical state, the stop block (30) blocks the rollers (31), and the pin (32) is inserted into the pre-reserved insertion tube of the mounting base (12) to block the other side of the rollers (31).

5. The vertical drill pipe box with a pressing and locking function according to claim 1, characterized in that: The drill pipe box has a movable door (5) on one side.

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