Hydraulic straightener for coiled tubing

Abstract

The utility model belongs to the technical field of coiled tubing, and discloses a hydraulic straightener for coiled tubing, which comprises a straightener, fixing pins are symmetrically and fixedly mounted at the top end of the straightener, a hydraulic telescopic cylinder is mounted at the top end of the straightener, a hydraulic pipeline is mounted at one end of the hydraulic telescopic cylinder through a screw, and the other end of the hydraulic pipeline is connected with a hydraulic pump. One end of the hydraulic pipeline is connected with a manual hydraulic pump through threads, and a continuous oil pipe is arranged at the top end of the straightener and located between the fixing pin and one end of the hydraulic telescopic cylinder. A position adjusting assembly is fixedly installed in the straightener and comprises a moving strip connected to the interior of the straightener in a sliding mode, the coiled tubing can be straightened conveniently, the straightening difficulty of the coiled tubing is lowered, and therefore the coiled tubing is prevented from being bent when entering a wellhead, and the safety of the coiled tubing is improved. And therefore, the coiled tubing can enter the wellhead conveniently, and the difficulty that the coiled tubing enters the wellhead is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of continuous oil pipes, and in particular relates to a hydraulic straightener for continuous oil pipes. Background Art

[0002] With the continuous development of coiled tubing operation technology, coiled tubing equipment has been widely used in major oil fields. Coiled tubing is made of low-carbon alloy steel and has good flexibility. It is also called flexible tubing. For easy transportation and use, the coiled tubing is wound on a reel. A reel can accommodate several thousand meters of coiled tubing. Due to the special transportation method, the coiled tubing is curved, not straight.

[0003] Since the coiled tubing is in a bent state, it is easy to be blocked when it enters the inlet position, which brings great difficulties to the coiled tubing operation. Utility Model Content

[0004] The utility model aims to solve the problem that the coiled tubing is in a bent state in the prior art, which is prone to blockage when entering the inlet position, thus causing great difficulties in the coiled tubing operation. The utility model proposes the following technical solutions:

[0005] A hydraulic straightener for a coiled tubing, comprising: a straightener, a fixing pin symmetrically fixedly mounted on the top of the straightener, a hydraulic telescopic cylinder mounted on the top of the straightener, a hydraulic pipeline mounted on one end of the hydraulic telescopic cylinder by screws, a manual hydraulic pump connected to one end of the hydraulic pipeline by threads, and a coiled tubing disposed on the top of the straightener between the fixing pin and one end of the hydraulic telescopic cylinder;

[0006] A position adjustment component is fixedly installed inside the straightener, and the position adjustment component includes a moving bar slidably connected to the inside of the straightener, a concave rod is welded to the outside of the moving bar, and the inner wall of the concave rod and the outside of the straightener fit together, a threaded rod is threadedly connected to the inside of one end of the concave rod, and the threaded rod is rotatably connected to one end of the straightener, and a positioning component is installed in the middle of the top end of the straightener.

[0007] Preferably, the other end of the concave rod is penetrated and connected with a cylinder, and one end of the cylinder and one end of the straightener are welded together, the hydraulic telescopic cylinder is fixedly installed on the moving bar, and the outer surfaces of the cylinder and the threaded rod are both sleeved and connected with a fixing block, and one end of the fixing block and one end of the straightener are welded together.

[0008] Preferably, a T-shaped column is welded to one end surface of the threaded rod, and one end of the T-shaped column is located outside the straightener.

[0009] Preferably, the positioning assembly includes a positioning plate, a pressure plate is slidably provided on one side of the positioning plate, one end of the pressure plate is slidably connected to a positioning slider inside the positioning plate, a groove matching the positioning slider is opened on the side wall of the positioning plate, and a first screw rod is rotatably connected in the groove, and one end of the first screw rod rotates through the positioning plate and extends to the top, and the first screw rod is threadedly connected to the positioning slider.

[0010] Preferably, the pressure plate is divided into two sections, and two positioning rods and a second screw rod are fixedly connected in between, and the positioning rod and the second screw rod are movably plugged into one section of the pressure plate, the second screw rod is located in one section of the pressure plate and is threadedly connected to a worm gear on its surface, and a groove matching the worm gear is provided inside the pressure plate, a worm is meshingly connected to one side of the worm gear, and the top of the worm gear rotates through the pressure plate and extends to the top.

[0011] Preferably, one end of the pressure plates of two adjacent positioning assemblies of the multiple positioning assemblies is fixedly connected to one side of the positioning plate, and the heights of the multiple positioning plates are different. The positioning plate of one of the positioning assemblies is fixedly connected to the hydraulic telescopic cylinder, and the pressure plate of a positioning assembly away from the hydraulic telescopic cylinder is L-shaped.

[0012] The beneficial effects of the utility model are:

[0013] (1) It is easy to straighten the coiled tubing, reducing the difficulty of straightening the coiled tubing, thereby preventing the coiled tubing from bending when entering the wellhead, thereby facilitating the coiled tubing to enter the wellhead, reducing the difficulty of the coiled tubing entering the wellhead;

[0014] (2) The spacing between one end of the hydraulic telescopic cylinder and the spacing between the outer sides of the fixing pins can be changed, so that the device can be adapted to oil pipes of different sizes, thereby increasing its applicability;

[0015] (3) It is possible to position the coiled tubing on multiple sides to prevent the coiled tubing from shaking when moving, thereby facilitating the straightening of the coiled tubing, reducing the difficulty of straightening the coiled tubing, and achieving the compression of multiple coiled tubings and the straightening of multiple coiled tubings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a structural schematic diagram of a hydraulic straightener for a coiled tubing;

[0017] Figure 2 Shown is a schematic diagram of the installation structure of the hydraulic pipeline;

[0018] Figure 3 What is shown is a schematic diagram of the structure of the position adjustment component;

[0019] Figure 4What is shown is a schematic diagram of the structure of the positioning component;

[0020] Figure 5 It shows Figure 1 Enlarged view of part A in the middle.

[0021] In the figure: 1. Straightener; 2. Fixing pin; 3. Hydraulic telescopic cylinder; 4. Manual hydraulic pump; 5. Continuous oil pipe;

[0022] 6. Position adjustment assembly; 61. Moving bar; 62. Concave rod; 63. Threaded rod; 64. Cylinder; 65. Fixed block; 66. T-shaped column;

[0023] 7. Positioning assembly; 71. Positioning plate; 72. Pressing plate; 73. Positioning slider; 74. First screw rod; 75. Positioning rod; 76. Second screw rod; 77. Worm wheel; 78. Worm;

[0024] 8. Hydraulic pipelines. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments.

[0026] Example 1

[0027] The utility model provides a hydraulic straightener for a coiled tubing, such as Figure 1-4 As shown, it comprises: a straightener 1, a fixing pin 2 is symmetrically fixedly installed on the top of the straightener 1, a hydraulic telescopic cylinder 3 is installed on the top of the straightener 1, a hydraulic pipeline 8 is installed on one end of the hydraulic telescopic cylinder 3 through a screw, a manual hydraulic pump 4 is connected to one end of the hydraulic pipeline 8 through a thread, and a continuous oil pipe 5 is arranged between the fixing pin 2 and one end of the hydraulic telescopic cylinder 3 at the top of the straightener 1;

[0028] A position adjustment component 6 is fixedly installed inside the straightener 1, and the position adjustment component 6 includes a moving bar 61 slidably connected to the inside of the straightener 1, a concave rod 62 is welded to the outside of the moving bar 61, and the inner wall of the concave rod 62 and the outer side of the straightener 1 fit together, a threaded rod 63 is threadedly connected to one end of the concave rod 62, and the threaded rod 63 is rotatably connected to one end of the straightener 1, and a positioning component 7 is installed in the middle of the top end of the straightener 1.

[0029] like Figure 2 and Figure 3As shown, the other end of the concave rod 62 is penetrated by a cylinder 64 and one end of the cylinder 64 is welded to one end of the straightener 1, the cylinder 64 is used to limit the concave rod 62 to prevent the concave rod 62 from swinging, the hydraulic telescopic cylinder 3 is fixedly installed on the moving bar 61, the outer surfaces of the cylinder 64 and the threaded rod 63 are sleeved with a fixing block 65 and one end of the fixing block 65 is welded to one end of the straightener 1, the fixing block 65 is used to support the cylinder 64 and the threaded rod 63, and does not hinder the rotation of the threaded rod 63, a T-shaped column 66 is welded to one end face of the threaded rod 63 and one end of the T-shaped column 66 is located outside the straightener 1, the T-shaped column 66 facilitates the rotation of the threaded rod 63, and changes the difficulty of rotating the threaded rod 63.

[0030] like Figure 1 and Figure 4-Figure 5 As shown, the positioning assembly 7 includes a positioning plate 71, a pressure plate 72 is slidably provided on one side of the positioning plate 71, one end of the pressure plate 72 is slidably connected to a positioning slider 73 inside the positioning plate 71, a groove matching the positioning slider 73 is opened on the side wall of the positioning plate 71, and a first screw rod 74 is rotatably connected in the groove, and one end of the first screw rod 74 rotates through the positioning plate 71 and extends to the top, the first screw rod 74 is threadedly connected to the positioning slider 73, the pressure plate 72 is divided into two sections, and two positioning rods 75 and a second screw rod 76 are fixedly connected between them, and the positioning rod 75 and the second screw rod 76 are both connected to the pressure plate of one section. 72 is movably plugged in, and the surface of the second screw rod 76 located in one section of the pressure plate 72 is threadedly connected to a worm gear 77, and a groove matching the worm gear 77 is opened inside the pressure plate 72, and a worm 78 is meshedly connected to one side of the worm gear 77, and the top of the worm 78 rotates through the pressure plate 72 and extends to the top. One end of the pressure plate 72 of two adjacent positioning assemblies 7 of the multiple positioning assemblies 7 is fixedly connected to one side of the positioning plate 71, and the heights of the multiple positioning plates 72 are all different. The positioning plate 71 of one of the positioning assemblies 7 is fixedly connected to the hydraulic telescopic cylinder 3, and the pressure plate 72 of a positioning assembly 7 away from the hydraulic telescopic cylinder 3 is L-shaped.

[0031] When positioning and pressing the coiled tubing 5, the hydraulic telescopic cylinder 3 is started to make the positioning plate 71 of the positioning assembly 7 at one end of the hydraulic telescopic cylinder 3 contact the coiled tubing 5, so that the other side of the connecting tubing 5 contacts the two fixing pins 2, and then the first screw rod 74 is rotated to make the pressing plate 72 move downward under the action of the positioning slider 73, contact and press the top of the coiled tubing 5 to prevent the coiled tubing 5 from shaking. When fixing multiple coiled tubings 5, first adjust the first screw rod 74 to make the other positioning assembly 7 The pressing plate 72 is higher than another continuous oil pipe 5, and then the worm 78 is manually rotated to make the worm 78 drive the worm wheel 77 to rotate, so that the second screw 76 is translated under the action of the positioning rod 75, thereby pushing another section of the pressing plate 72 to move, so that the positioning plate of another positioning assembly 7 is in contact with 71 and pressed against another continuous oil pipe 5, and then the first screw 74 is adjusted to make the pressing plate 72 press against the continuous oil pipe 5, and so on, using multiple positioning assemblies 7, multiple continuous oil pipes 5 can be pressed and straightened.

[0032] Working principle: During the actual use of the device, personnel drive the threaded rod 63 to rotate through the T-shaped column 66. When the threaded rod 63 rotates, it drives the concave rod 62 to move along the outside of the cylinder 64. When the concave rod 62 moves, it drives the moving bar 61 to move inside the straightener 1, so that the spacing between one end of the hydraulic telescopic cylinder 3 and the spacing between the outsides of the fixing pins 2 are changed, so that the device can adapt to oil pipes of different sizes, increasing its applicability.

[0033] When positioning and pressing the coiled tubing 5, the hydraulic telescopic cylinder 3 is started to make the positioning plate 71 of the positioning assembly 7 at one end of the hydraulic telescopic cylinder 3 contact the coiled tubing 5, so that the other side of the connecting tubing 5 contacts the two fixing pins 2, and then the first screw rod 74 is rotated to make the pressing plate 72 move downward under the action of the positioning slider 73, contact and press the top of the coiled tubing 5 to prevent the coiled tubing 5 from shaking. When fixing multiple coiled tubings 5, first adjust the first screw rod 74 to make the other positioning assembly 7 The pressing plate 72 is higher than another coiled tubing 5, and then the worm 78 is manually rotated to make the worm 78 drive the worm wheel 77 to rotate, so that the second screw 76 is translated under the action of the positioning rod 75, thereby pushing another section of the pressing plate 72 to move, so that the positioning plate of another positioning assembly 7 is in contact with 71 another coiled tubing 5 and pressed tightly, and then the first screw 74 is adjusted to make the pressing plate 72 press the coiled tubing 5 tightly, and so on, using multiple positioning assemblies 7, multiple coiled tubings 5 ​​can be pressed and straightened;

[0034] Finally, the personnel put the hydraulic pipeline 8 into the top of the straightener 1 and locate it between the fixed pin 2 and the hydraulic telescopic cylinder 3, and then drive the manual hydraulic pump 4. The power inside the manual hydraulic pump 4 enters the hydraulic telescopic cylinder 3 through the hydraulic pipeline 8, and makes the hydraulic telescopic cylinder 3 perform telescopic movement, pushing the continuous oil pipe 5 on the straightener 1 for straightening.

[0035] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. A hydraulic straightener for coiled tubing, characterized in that: include: A straightener (1), wherein a fixing pin (2) is symmetrically fixedly installed at the top of the straightener (1), a hydraulic telescopic cylinder (3) is installed at the top of the straightener (1), a hydraulic pipeline (8) is installed at one end of the hydraulic telescopic cylinder (3) via a screw, and a manual hydraulic pump (4) is connected to one end of the hydraulic pipeline (8) via a thread, and a continuous oil pipe (5) is arranged at the top of the straightener (1) between the fixing pin (2) and one end of the hydraulic telescopic cylinder (3); A position adjustment component (6) is fixedly installed inside the straightener (1), and the position adjustment component (6) includes a moving bar (61) slidably connected to the inside of the straightener (1). A concave rod (62) is welded to the outside of the moving bar (61), and the inner wall of the concave rod (62) and the outer side of the straightener (1) are in contact with each other. A threaded rod (63) is threadedly connected to the inside of one end of the concave rod (62), and the threaded rod (63) is rotatably connected to one end of the straightener (1). A plurality of positioning components (7) are installed in the middle of the top end of the straightener (1).

2. The hydraulic straightener for coiled tubing according to claim 1, characterized in that: The other end of the concave rod (62) is penetrated and connected with a cylinder (64), and one end of the cylinder (64) is welded to one end of the straightener (1). The hydraulic telescopic cylinder (3) is fixedly installed on the moving bar (61). The outer surfaces of the cylinder (64) and the threaded rod (63) are both sleeved and connected with a fixing block (65), and one end of the fixing block (65) is welded to one end of the straightener (1).

3. The hydraulic straightener for coiled tubing according to claim 2, characterized in that: A T-shaped column (66) is welded to one end surface of the threaded rod (63), and one end of the T-shaped column (66) is located outside the straightener (1).

4. The hydraulic straightener for coiled tubing according to claim 1, characterized in that: The positioning assembly (7) comprises a positioning plate (71), a pressure plate (72) is slidably provided on one side of the positioning plate (71), one end of the pressure plate (72) is slidably connected to a positioning slider (73) inside the positioning plate (71), a groove matching the positioning slider (73) is provided on the side wall of the positioning plate (71), and a first screw rod (74) is rotatably connected in the groove, and one end of the first screw rod (74) is rotatably passed through the positioning plate (71) and extends to the top, and the first screw rod (74) is threadedly connected to the positioning slider (73).

5. The hydraulic straightener for coiled tubing according to claim 4, characterized in that: The pressure plate (72) is divided into two sections, and two positioning rods (75) and a second screw rod (76) are fixedly connected between them. The positioning rod (75) and the second screw rod (76) are movably plugged into one section of the pressure plate (72). The second screw rod (76) is located in one section of the pressure plate (72) and is threadedly connected to a worm gear (77) on its surface. A groove matching the worm gear (77) is provided inside the pressure plate (72). A worm (78) is meshedly connected to one side of the worm gear (77). The top of the worm (78) rotates through the pressure plate (72) and extends to the top.

6. The hydraulic straightener for coiled tubing according to claim 4, characterized in that: One end of the pressure plates (72) of two adjacent positioning assemblies (7) of the plurality of positioning assemblies (7) is fixedly connected to one side of the positioning plate (71), and the heights of the plurality of positioning plates (72) are all different. The positioning plate (71) of one of the positioning assemblies (7) is fixedly connected to the hydraulic telescopic cylinder (3), and the pressure plate (72) of a positioning assembly (7) away from the hydraulic telescopic cylinder (3) is arranged in an L shape.

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