Coiled tubing guiding device

Abstract

The utility model relates to a coiled tubing guiding device, and relates to the technical field of oil and gas development. The continuous oil pipe guiding device comprises a machine frame, a stabilizing mechanism is arranged on the machine frame and comprises a rope, a winding roller and a stabilizing assembly, the rope is wound on the winding roller, the stabilizing assembly is hung at one end of the rope, the stabilizing assembly comprises a support, a weight increasing block, a limiting plate and an elastic piece, the weight increasing block is connected with the support, and the limiting plate is connected with the elastic piece. A first through hole for the coiled tubing to penetrate through is formed in the support, the two ends of the elastic piece are connected with the support and the limiting plates respectively, and the at least two limiting plates jointly clamp the coiled tubing penetrating through the through hole. The coiled tubing penetrates through the first through hole in the support and then is clamped by the limiting plates, the stability of the coiled tubing in the descending process is improved, the limiting plates are arranged on the elastic pieces, the distance between the limiting plates can be adjusted according to the diameter of the coiled tubing, and therefore the operation requirements of the coiled tubing with different diameters are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil and gas development technical field, in particular to a continuous oil pipe guiding device. BACKGROUND

[0002] Continuous oil pipe technology is widely applied in the work of well repairing, well completion, yield increasing and well logging in oil and gas industry, and it has the advantages of high work efficiency, good flexibility and strong adaptability. However, when the continuous oil pipe enters the well mouth, it is often affected by friction, bending and twisting, which reduces the work efficiency and increases the equipment loss. Therefore, a guiding device is needed to assist the lowering of the continuous oil pipe.

[0003] The Chinese patent with the publication number CN205400636U discloses a vehicle-mounted continuous oil pipe lowering device. The mobile vehicle aligns one end of the continuous oil pipe on the drum with the well mouth, and uses the motor to drive the drum to rotate, directly conveying the continuous oil pipe into the well mouth. However, the continuous oil pipe in the above-mentioned patent lacks stability measures during lowering, and is prone to shift during lowering. SUMMARY

[0004] The utility model provides a kind of continuous oil pipe guiding device, by setting stabilizing mechanism, reduce the shift during lowering of continuous oil pipe, improve the stability and accuracy of continuous oil pipe lowering operation.

[0005] The utility model provides a kind of continuous oil pipe guiding device, including rack, be equipped with stabilizing mechanism on the rack, the stabilizing mechanism includes rope, winding roller and stabilizing component, the rope is wound on the winding roller, the stabilizing component is suspended in one end of the rope, the stabilizing component includes support, weight block, limit plate and elastic piece, the weight block is connected with the support, first through-hole for continuous oil pipe to pass through is set in the support, the both ends of the elastic piece are connected with the support and the limit plate respectively, at least two limit plates are collectively clamped the continuous oil pipe passing through the through-hole.

[0006] In an embodiment, first sliding groove is further set in the support, and the stabilizing component further includes stabilizing rod, one end of the stabilizing rod is connected with the limit plate, and the other end of the stabilizing rod is slidably arranged in the first sliding groove.

[0007] In an embodiment, limit post is further provided on the support, the limit post is threadedly connected with the support, and one end of the limit post can abut against the surface of the limit plate.

[0008] In one embodiment, the stabilizing mechanism further comprises a first fixing frame and a first driver, the first fixing frame is arranged on the top of the frame, the winding roller is arranged in the first fixing frame, the first driver is arranged on the surface of the first fixing frame and connected with the winding roller, and a second through hole is arranged on the frame for the rope to pass through.

[0009] In one embodiment, the surface of the limiting plate is arc-shaped.

[0010] In one embodiment, the frame is further provided with a second fixing frame, the second fixing frame is provided with a tubing roller and a second driver, the tubing roller is arranged in the second fixing frame, and the second driver is arranged on the surface of the second fixing frame and connected with the tubing roller.

[0011] In one embodiment, the second fixing frame is further provided with a guide assembly, the guide assembly comprises a third fixing frame, a guide rod, a sliding block, a connecting rod and a limiting ring, the third fixing frame is connected with the second fixing frame, the guide rod is arranged on the third fixing frame, the sliding block is slidingly arranged on the guide rod, a second sliding groove is arranged on the third fixing frame, the connecting rod passes through the second sliding groove, and the two ends of the connecting rod are respectively connected with the sliding block and the limiting ring.

[0012] In one embodiment, the top of the limiting ring is oppositely provided with a pair of limiting blocks, and a V-shaped notch is formed between the two limiting blocks.

[0013] In one embodiment, the bottom of the frame is provided with a roller, and one side of the frame is provided with a handrail.

[0014] In one embodiment, the two sides of the frame are provided with L-shaped side plates, and the side plates are provided with fastening nails rotatable into the ground vertically.

[0015] Compared with the prior art, the advantages of the utility model lie in that the rope is wound and unwound by the winding roller, the position of the stabilizing assembly can be adjusted to adapt to different operation requirements, the stabilizing assembly has the weight blocks, and the stability of the stabilizing assembly during lifting can be ensured. The coiled tubing is clamped by the limiting plates after passing through the first through hole of the support, the stability and accuracy of the coiled tubing during lowering are improved, the limiting plates are arranged on the elastic members, the spacing between the limiting plates can be adjusted according to the diameter of the coiled tubing, and the operation requirements of the coiled tubing with different diameters can be adapted. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be described in more detail based on the embodiments and with reference to the drawings hereinafter.

[0017] Figure 1is a perspective view of the coiled tubing guiding device in the embodiment of the utility model;

[0018] Figure 2 is a perspective view of the stabilizing mechanism in the embodiment of the utility model;

[0019] Figure 3 is one of the perspective views of the stabilizing assembly in the embodiment of the utility model;

[0020] Figure 4 is the second perspective view of the stabilizing assembly in the embodiment of the utility model;

[0021] Figure 5 is the perspective view of the guiding assembly in the embodiment of the utility model.

[0022] Reference signs:

[0023] 1, rack; 11, second through hole; 2, stabilizing mechanism; 21, rope; 22, winding roller; 23, stabilizing assembly; 231, support; 2311, first through hole; 2312, first sliding groove; 232, weight block; 233, limiting plate; 234, elastic member; 235, stabilizing rod; 236, limiting column; 24, first fixing frame; 25, first driver; 3, second fixing frame; 4, tubing roller; 5, second driver; 6, guiding assembly; 61, third fixing frame; 611, second sliding groove; 62, guiding rod; 63, sliding block; 64, connecting rod; 65, limiting ring; 66, limiting block; 71, roller; 72, handrail; 73, side plate; 74, fastening nail; 100, coiled tubing. DETAILED DESCRIPTION

[0024] The utility model will be described further below with reference to the drawings.

[0025] As Figure 1 and Figure 2 shown, the coiled tubing guiding device of the embodiment of the utility model includes rack 1, and the rack 1 is equipped with stabilizing mechanism 2, and the stabilizing mechanism 2 includes rope 21, winding roller 22 and stabilizing assembly 23, and the rope 21 is wound on winding roller 22, and the stabilizing assembly 23 is suspended at one end of rope 21. Figure 2 and Figure 3 As shown, the stabilizing assembly 23 includes support 231, weight block 232, limiting plate 233 and elastic member 234, the weight block 232 is connected with support 231, the first through hole 2311 for coiled tubing 100 to pass through is set up on support 231, the two ends of elastic member 234 are connected with support 231 and limiting plate 233 respectively, and two limiting plates 233 jointly clamp the coiled tubing 100 passing through the through hole. The rope 21 in the embodiment is steel wire rope, and can bear greater tension.

[0026] The rope 21 is wound and unwound by the winding roller 22, the position of the stabilizing assembly 23 can be adjusted to adapt to different operation requirements, and the stabilizing assembly 23 has the weight blocks 232 to ensure the stability of the stabilizing assembly 23 during lifting. The coiled tubing 100 is clamped by the limiting plates 233 after passing through the first through holes 2311 on the support 231. Since the coiled tubing 100 is clamped, the stability of the coiled tubing 100 during lowering is improved, and the limiting plates 233 are arranged on the elastic members 234. The spacing between the limiting plates 233 can be adjusted according to the diameter of the coiled tubing 100, so as to adapt to the operation requirements of the coiled tubing 100 with different diameters.

[0027] As shown in Figure 4 , the support 231 is also provided with a first sliding groove 2312, and the stabilizing assembly 23 further comprises a stabilizing rod 235, one end of the stabilizing rod 235 is connected with the limiting plate 233, and the other end of the stabilizing rod 235 is slidingly arranged in the first sliding groove 2312. In this embodiment, the elastic member 234 is a spring, and the first sliding groove 2312 is arranged in the same direction as the length direction of the elastic member 234. Since the first sliding groove 2312 can limit the movement of the stabilizing rod 235, the stabilizing rod 235 can only move back and forth in the direction in which the first sliding groove 2312 is arranged, so that the stability of the limiting plate 233 is improved, and it is ensured that the limiting plate 233 can always clamp the coiled tubing 100.

[0028] In this embodiment, the stabilizing rod 235 is L-shaped, the shape of the first sliding groove 2312 matches the stabilizing rod 235, the first sliding groove 2312 can better limit the movement of the stabilizing rod 235, and the stabilizing rod 235 can hook the support 231, so that the stabilizing rod 235 is not easy to come out of the first sliding groove 2312.

[0029] Further, the support 231 is also provided with a limiting column 236, the limiting column 236 is threadedly connected with the support 231, and one end of the limiting column 236 can abut against the surface of the limiting plate 233. Since the limiting plate 233 is arranged on the elastic member 234, when the coiled tubing 100 passes between the limiting plates 233 during operation, the limiting plates 233 will be subjected to a force, causing the elastic member 234 to vibrate. If this vibration is not inhibited, the coiled tubing 100 may come out of the limiting plates 233. However, after the limiting column 236 is arranged, the limiting column 236 can be moved on the support 231 by screwing, so as to abut against the limiting plate 233 and support the limiting plate 233, thereby inhibiting the vibration of the limiting plate 233, improving the reliability of the stabilizing assembly 23, and reducing the risk of displacement or shaking of the coiled tubing 100.

[0030] As shown in Figure 1 and Figure 2As shown, the stabilizing mechanism 2 further comprises a first fixing frame 24 and a first driver 25, the first fixing frame 24 is arranged on the top of the frame 1, the winding roller 22 is arranged in the first fixing frame 24, and the first driver 25 is arranged on the surface of the first fixing frame 24 and connected with the winding roller 22. A second through hole 11 is formed on the frame 1 for the rope 21 to pass through. By controlling the first driver 25, the rope 21 can be conveniently wound and unwound, so that the stabilizing assembly 23 can be quickly hoisted to the target position, and the work efficiency is improved.

[0031] In the embodiment, the surface of the limiting plate 233 is arc-shaped. The limiting plate 233 has a large contact area when it is in contact with the coiled tubing 100, so that it can more stably embrace the coiled tubing 100. In the embodiment, two limiting plates 233 are arranged, which is structurally simple and has high reliability. In other embodiments, three or more limiting plates 233 are arranged, which can achieve better embracing and clamping effects on the coiled tubing 100.

[0032] As shown in Figure 1 The frame 1 is further provided with a second fixing frame 3, the second fixing frame 3 is provided with a tubing roller 4 and a second driver 5, the tubing roller 4 is arranged in the second fixing frame 3, and the second driver 5 is arranged on the surface of the second fixing frame 3 and connected with the tubing roller 4. The second driver 5 can drive the tubing roller 4 to rotate, so that the coiled tubing 100 wound on the tubing roller 4 is released into the well.

[0033] As shown in Figure 1 and Figure 5 The second fixing frame 3 is further provided with a guide assembly 6, the guide assembly 6 comprises a third fixing frame 61, a guide rod 62, a sliding block 63, a connecting rod 64 and a limiting ring 65, the third fixing frame 61 is connected with the second fixing frame 3, the guide rod 62 is arranged on the third fixing frame 61, the sliding block 63 is slidingly arranged on the guide rod 62, a second sliding groove 611 is formed on the third fixing frame 61, the connecting rod 64 passes through the second sliding groove 611, and the two ends of the connecting rod 64 are respectively connected with the sliding block 63 and the limiting ring 65. The length direction of the guide rod 62 is consistent with the length direction of the second sliding groove 611, so that the limiting ring 65 can move along with the connecting rod 64 and the sliding block 63.

[0034] Since the coiled tubing 100 is wound on the tubing roller 4, when the coiled tubing 100 is lowered, its release position is variable, which results in the swinging of the suspended stabilizing assembly 23 and reduces the stability of the coiled tubing 100 during lowering. However, the guide assembly 6 is arranged in the embodiment, so that the limiting ring 65 can continuously reciprocate along the second sliding groove 611 during the lowering of the coiled tubing 100, which greatly reduces the effect on the stabilizing assembly 23 and maintains the stability of the stabilizing assembly 23.

[0035] AsFigure 5 As shown, the top of the limiting ring 65 is oppositely provided with a pair of limiting blocks 66, and a V-shaped notch is formed between the two limiting blocks 66. When the coiled tubing 100 needs to pass through the limiting ring 65, the coiled tubing 100 is only needed to be placed on the V-shaped notch and then pressed downward, so that the limiting ring 65 is deformed to a certain extent, and the coiled tubing 100 can enter the inside of the limiting ring 65, and the operation is very convenient. The limiting ring 65 has a certain elasticity, can absorb a certain vibration, can reduce the impact on the coiled tubing 100, and plays a protective role on the coiled tubing 100.

[0036] As shown in the drawings, Figure 1 The bottom of the rack 1 is provided with a roller 71, and one side of the rack 1 is provided with a handrail 72. By pushing and pulling the handrail 72, the position of the rack 1 can be adjusted, so that the stabilizing assembly 23 is located directly above the wellhead, so that the coiled tubing 100 can be smoothly lowered into the well.

[0037] Further, the two sides of the rack 1 are provided with L-shaped side plates 73, and the side plates 73 are provided with fastening nails 74 which are vertically arranged on the ground. The vertical part of the side plate 73 is fixed on the side of the rack 1, and the horizontal part is provided with the fastening nail 74. The fastening nail 74 is threadedly connected with the side plate 73, and when the rack 1 is adjusted to the position, the fastening nail 74 can be fixed on the ground by screwing the fastening nail 74, so as to avoid displacement of the rack 1 during operation, and improve the stability and accuracy of the operation. When the operation is completed, the fastening nail 74 is unscrewed in the opposite direction, so that it is lifted and separated from the ground, and then the rack 1 can be moved to the next operation site, which is very convenient to use.

[0038] Although the utility model has been described with reference to the preferred embodiments, various improvements can be made and equivalent parts can be replaced without departing from the scope of the utility model. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A coiled tubing guide apparatus, characterized by, The utility model provides a kind of stable mechanism, including rack, which is provided with stabilizing mechanism, the stabilizing mechanism includes rope, winding roller and stabilizing component, the rope is wound on the winding roller, the stabilizing component is suspended at one end of the rope, the stabilizing component includes support, weight block, limiting plate and elastic piece, the weight block is connected with the support, the first through hole for coiled tubing to pass through is set in the support, the two ends of the elastic piece are connected with the support and the limiting plate respectively, and at least two limiting plates are used to clamp the coiled tubing passing through the through hole.

2. The coiled tubing guide of claim 1, wherein, The support is also provided with a first sliding groove, and the stabilizing component further includes a stabilizing rod, one end of the stabilizing rod is connected with the limiting plate, and the other end of the stabilizing rod is slidingly arranged in the first sliding groove.

3. The coiled tubing guide of claim 2, wherein, The support is also provided with a limiting post, the limiting post is threadedly connected with the support, and one end of the limiting post can abut against the surface of the limiting plate.

4. The coiled tubing guide of claim 1, wherein, The stabilizing mechanism further includes a first fixing frame and a first driver, the first fixing frame is arranged on the top of the rack, the winding roller is arranged in the first fixing frame, the first driver is arranged on the surface of the first fixing frame and connected with the winding roller, and the second through hole for the rope to pass through is formed in the rack.

5. The coiled tubing guide of claim 1, wherein, The surface of the limiting plate is arc-shaped.

6. The coiled tubing guide of claim 1, wherein, The rack is also provided with a second fixing frame, the second fixing frame is provided with a tubing roller and a second driver, the tubing roller is arranged in the second fixing frame, and the second driver is arranged on the surface of the second fixing frame and connected with the tubing roller.

7. The coiled tubing guide of claim 6, wherein, The second fixing frame is also provided with a guide assembly, the guide assembly includes a third fixing frame, a guide rod, a sliding block, a connecting rod and a limiting ring, the third fixing frame is connected with the second fixing frame, the guide rod is arranged on the third fixing frame, the sliding block is slidingly arranged on the guide rod, the second sliding groove is formed in the third fixing frame, the connecting rod passes through the second sliding groove, and the two ends of the connecting rod are respectively connected with the sliding block and the limiting ring.

8. The coiled tubing guide of claim 7, wherein, The top of the limiting ring is oppositely provided with a pair of limiting blocks, and a V-shaped notch is formed between the two limiting blocks.

9. The coiled tubing guide of claim 1, wherein, The bottom of the rack is provided with a roller, and one side of the rack is provided with a handrail.

10. The coiled tubing guide of claim 9, wherein, The two sides of the rack are provided with L-shaped side plates, the side plates are provided with fastening nails vertically arranged in the ground.

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