Automatic receiving and conveying device for oil pipe feeding and discharging and wellhead platform

Abstract

The utility model discloses an oil pipe feeding and discharging automatic receiving and conveying device and a wellhead platform, and mainly relates to the field of workover equipment. Comprising a translation mechanism and a receiving and conveying mechanism, the translation mechanism comprises a door-shaped frame with a reciprocating translation stroke, the receiving and conveying mechanism is installed on the door-shaped frame, the receiving and conveying mechanism comprises two swing arms and an installation frame, and the two swing arms are arranged on the two sides of the door-shaped frame respectively; the mounting frame extends horizontally, the two ends of the mounting frame are fixed to the top ends of the swing arms respectively, a riding wheel is rotatably mounted in the middle of the mounting frame, the bottom ends of the swing arms are hinged to the middle or the lower portion of the door-shaped frame, the swing arms have swing strokes, and the swing strokes do not exceed 90 degrees. And the stroke starting position of the swinging stroke is that the swinging arm is in a vertical state. The oil pipe conveying device has the advantage of being capable of achieving the function of automatically and stably receiving and conveying oil pipes.

Description

Technical Field

[0001] The utility model relates to the field of well repair equipment, in particular to an automatic oil pipe loading and unloading device and a wellhead platform. Background Art

[0002] Well repair operations mainly refer to operations on oil pipes, including lifting and lowering oil pipes, that is, lifting the oil pipes underground after unbuckling, and lowering the new oil pipes into the well after re-buckling. This process is always accompanied by the loading and unloading of the oil pipes, and both lifting and lowering the oil pipes require the oil pipes to switch between a vertical state and a gradually inclined state. In traditional operations, the lifting and lowering of the oil pipes are based on the inclination of the manually guided oil pipes. There will inevitably be obvious shaking during lifting, and there will be problems such as unstable alignment between the oil pipe to be installed and the oil pipe below, which is time-consuming and labor-intensive. During the process of lowering the oil pipes, if the bottom of the oil pipes is not properly guided, it is easy to bump into the oil pipes and there will be certain safety hazards. Therefore, the lifting and lowering process of the oil pipes is a link in the well repair operation that accounts for a large proportion of the workload and is difficult to operate. Utility Model Content

[0003] The purpose of the utility model is to provide an automatic receiving and delivering device for loading and unloading oil pipes and a wellhead platform, which can cooperate with the oil pipe lifting to receive the oil pipe and make the bottom of the oil pipe vertical before assisting in lowering it into the wellhead, and cooperate with the oil pipe lifting process from the wellhead to lift the oil pipe and assist in transporting the oil pipe to the storage position, thereby realizing the function of automatically and stably receiving and delivering the oil pipe.

[0004] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0005] An automatic receiving and delivering device for loading and unloading oil pipes comprises a translation mechanism and a receiving and delivering mechanism, wherein the translation mechanism comprises a portal frame with a reciprocating translation stroke, the receiving and delivering mechanism is installed on the portal frame, the receiving and delivering mechanism comprises a swing arm and a mounting frame, the number of the swing arms is two and they are respectively arranged on both sides of the portal frame, the mounting frame extends horizontally and its two ends are respectively fixed to the top of the swing arm, a supporting wheel is rotatably installed in the middle part of the mounting frame, the bottom end of the swing arm is hinged to the middle part or the lower part of the portal frame, so that the swing arm has a swing stroke, the swing stroke does not exceed 90 degrees, and the starting position of the swing stroke is that the swing arm is in a vertical state.

[0006] The pick-up and delivery mechanism also includes two swing hydraulic cylinders, the top ends of which are hinged to the top end of the portal frame, the bottom ends of the swing hydraulic cylinders are provided with swing levers that cooperate with them, and the bottom ends of the swing levers are hinged to the swing arms.

[0007] The mounting frame includes a horizontal bar that is symmetrically arranged on the left and right, the outer end of the horizontal bar is fixed to the top of the swing arm, the adjacent inner end of the horizontal bar is provided with a folding rod bent toward one side of the portal frame, the plane where the folding rod and the horizontal bar are located is perpendicular to the swing arm, and the two ends of the supporting wheel are respectively rotatably connected to the inner end of the folding rod.

[0008] The portal frame includes a crossbeam on the top side and columns on both sides, and the two ends of the crossbeam are respectively fixedly connected to the top of the columns on the same side. The translation mechanism also includes a track group, which includes two groups and are respectively arranged under the columns on the same side. A slider is slidably matched on the track group, and the slider is fixed to the bottom of the column on the same side.

[0009] The translation mechanism also includes two groups of translation hydraulic cylinders, which are arranged in the same direction as the track group, and one end of the translation hydraulic cylinder is telescopically matched with a translation lever, and the end of the translation lever away from the translation hydraulic cylinder is connected to a driving member, and the driving member is fixedly connected to the bottom of the column.

[0010] A wellhead platform comprises a platform body, the platform body is provided with an installation opening for passing an oil pipe, an automatic oil pipe lifting and lowering receiving device is installed on the platform body, the reciprocating translation stroke of the gantry starts from the side of the platform body and ends at the side of the installation opening, and when the swing arm is in a vertical state, the supporting wheel is located above the installation opening and contacts with the oil pipe coaxial with the installation opening.

[0011] The translation mechanism includes two groups of track groups arranged in the same direction and a translation hydraulic cylinder, each group of the track groups is correspondingly arranged below the two sides of the portal frame, a slider slidably connected to the track group is fixed at the bottom end of the portal frame, the translation hydraulic cylinder is fixedly installed on the bottom surface or top surface of the platform body, and a driving member is connected to the end of the translation lever away from the translation hydraulic cylinder, and the driving member is fixedly connected to the bottom of the column.

[0012] The translation hydraulic cylinder is installed on the bottom surface of the platform body. Each track group includes two linear tracks arranged in parallel. A strip gap is provided between the two linear tracks in the same row. Long strip holes are provided on the platform body corresponding to the strip gap. The driving member passes through the strip hole and is fixed to the bottom end of the column.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] This device can coordinate the supporting wheel with the bottom of the oil pipe by tilting the swing arm, so as to guide and support the inclined oil pipe to the vertical state, or guide and lift the oil pipe from the vertical state to the bottom end to tilt outward, so as to coordinate the oil pipe tripping and automatic delivery, and can safely trip the oil pipe. The gantry can move parallel to achieve the approach or distance of the oil pipe, so as to make room for other well repair operations when there is no need to trip the oil pipe and cooperate with delivery. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall schematic diagram of the pick-up and delivery device of the utility model.

[0016] Figure 2 It is a schematic diagram of the installation of components on the wellhead platform of the utility model.

[0017] Figure 3 It is a schematic diagram of the wellhead platform of the utility model when the swing arm is located at the swing starting end.

[0018] Figure 4 This utility model Figure 3 Top view of the .

[0019] Numbers shown in the accompanying drawings:

[0020] 1. Platform body; 2. Mounting port; 3. Crossbeam; 4. Column; 5. Linear track; 6. Slider; 7. Translation hydraulic cylinder; 8. Strip hole; 9. Driving member; 10. Swing hydraulic cylinder; 11. Swing arm; 12. Mounting frame; 13. Support wheel; 14. Folding rod; 15. Lower swing arm; 16. Upper swing arm. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the present application.

[0022] Example 1: Wellhead platform equipped with an automatic oil pipe tripping and lowering device

[0023] The platform body 1 includes a mounting opening 2 which is relatively centrally arranged on the platform body 1. The mounting opening 2 is used to pass the oil pipe. If an automated mechanical device is used, a slip mechanism can be installed at the mounting opening 2 to fix the oil pipe. If manual well repair is used, the slip is manually dragged to fix the oil pipe.

[0024] The platform body 1 is provided with a translation mechanism and a pick-up and delivery mechanism, and the pick-up and delivery mechanism is installed on the translation mechanism. The translation mechanism has a reciprocating translation stroke from the side of the platform body 1 to the installation port 2, so that the pick-up and delivery mechanism can approach or move away from the installation port 2, thereby cooperating with operations close to the oil pipeline or moving away from the oil pipeline to make room for other operations.

[0025] The translation mechanism includes a door frame, a track group, and a translation drive group. The door frame includes a crossbeam 3 on the top side and columns 4 on both sides. The two columns 4 are symmetrically arranged relative to the installation opening 2. The two ends of the crossbeam 3 are respectively fixedly connected to the top of the column 4 on the same side. The crossbeam 3 and the column 4 together form a door shape. The bottom ends of the two columns 4 are respectively provided with bases.

[0026] There are two rail groups and they are arranged side by side relative to the installation opening 2. Each rail group includes two linear rails 5 arranged side by side. Slide blocks 6 are slidably connected to the linear rails 5. The slide blocks 6 on each side are fixedly mounted on the base at the bottom end of the same side column 4 by bolts, so as to guide the door frame to slide forward and backward.

[0027] Based on the fact that this facility adopts hydraulic drive, the translation drive group in this example includes a translation hydraulic cylinder 7. This is not limited to this example, and other drive structures can also be used, such as gear drive, screw drive, etc. The length direction of the translation hydraulic cylinder 7 is consistent with the length direction of the linear rail 5. One end of the translation hydraulic cylinder 7 is fixedly installed on the platform body 1, and the other end of the translation hydraulic cylinder 7 is telescopically cooperated with a translation lever. The end of the translation lever away from the translation hydraulic cylinder 7 is connected to a driving member 9. A strip gap is provided between two linear rails 5 in the same row, and a long strip hole 8 is provided on the platform body 1 corresponding to the strip gap. The driving member 9 passes through the strip hole, and the top end of the driving member 9 is fixed to the bottom of the base. The sliding and position of the portal frame are controlled by the translation hydraulic cylinder 7.

[0028] Based on the above structure, the portal frame has a reciprocating translation stroke from the side of the platform body 1 to the installation port 2. The portal frame has a standby position and a working position based on the reciprocating translation. When the portal frame is in the standby position, the slider 6 is located at one end of the linear track 5 close to the side of the platform body 1, so the portal frame is located on one side of the platform body 1. When the portal frame is in the working position, the slider 6 is located at one end of the linear track 5 close to the installation port 2, and the portal frame is located on the side of the installation port 2.

[0029] The pick-up and delivery mechanism includes a swing hydraulic cylinder 10, a swing arm 11, a mounting frame 12, and a supporting wheel 13;

[0030] The top end of the swing hydraulic cylinder 10 is hinged to the top end of the column 4, and the bottom end of the swing hydraulic cylinder 10 is provided with a swing cylinder rod which is telescopically matched with the swing hydraulic cylinder 10.

[0031] The bottom end of the swing arm 11 is hingedly mounted on the middle of the column 4 , and the bottom end of the swing cylinder rod is hingedly connected to the bottom of the swing arm 11 . Based on the telescopic drive of the swing hydraulic cylinder 10 , the top of the swing arm 11 swings relative to the front of the portal frame.

[0032] The mounting frame 12 includes a horizontal bar symmetrically arranged, the outer end of the horizontal bar is fixed to the top of the swing arm 11, and the inner end adjacent to the horizontal bar is provided with a folding rod 14 which is at an obtuse angle to the horizontal bar. The folding rod 14 is at an obtuse angle to the horizontal bar, and the plane where the folding rod 14 and the horizontal bar are located is perpendicular to the swing arm 11. The supporting wheel 13 is installed at one end adjacent to the two folding rods 14, and a trapezoidal groove is provided in the center of the peripheral side of the supporting wheel 13. The inclined surface of the trapezoidal groove is used to contact the side wall of the oil pipe to support and lift the oil pipe.

[0033] Based on the above structure, the swing arm 11 has a swing stroke on the side of the portal frame away from the track group. Based on the swing stroke, the swing arm 11 can swing from a vertical state to a side away from the track group. When the swing arm 11 is in a vertical state and the portal frame is in the working position, the supporting wheel 13 is located at the installation port 2 and its peripheral surface can contact the oil pipe centrally located in the installation port 2.

[0034] This device can cooperate with the lifting and lowering of the oil pipe. When the oil pipe needs to be lowered from the storage position to the wellhead, one end of the horizontal oil pipe is lifted. During the lifting process, when the oil pipe is not completely suspended, the top of the oil pipe is tilted close to the platform. By swinging and tilting the swing arm 11 forward (away from the track group), the supporting wheel 13 supports the oil pipe at the bottom, and the lower part of the oil pipe can be supported in the lifting process of the oil pipe to prevent the oil pipe from swinging back and forth when it is lifted. At the same time, during the lifting process of the oil pipe, the swing arm 11 is controlled to gradually return to the vertical state, and the oil pipe also reaches the vertical state, thereby guiding the bottom of the oil pipe to gradually approach the installation port 2, and stably access the oil pipe. When the oil pipe is lifted from the wellhead and transported to the storage position, after the oil pipe that has just been unhooked is lifted, the portal frame is located in the working position, and the swing arm 11 first allows the supporting wheel 13 to contact the side wall of the oil pipe in a vertical state, and then continues to lift the oil pipe so that the bottom of the oil pipe is located on the supporting wheel 13. At the same time, the swing arm 11 swings forward, lifting the bottom of the oil pipe outward and tilting the bottom end of the oil pipe away from the platform body 1, so that it can be smoothly picked up by other equipment on the catwalk, or manually dropped on the ground, to assist the oil pipe lifting and transportation process.

[0035] When there is no need to pull in or out the oil pipe for transportation, the gantry can retreat to the standby position close to the side of the platform body to make room for other well repair operations.

[0036] In summary, the device can achieve guiding support for the inclined oil pipe to a vertical state, or guiding and lifting the oil pipe from a vertical state to an outward tilt from the bottom end, by tilting the swing arm 11 so that the supporting wheel 13 cooperates with the bottom of the oil pipe, thereby cooperating with the lifting and lowering of the oil pipe and the automatic delivery of the oil pipe, and can lift and lower the oil pipe steadily, smoothly and safely.

[0037] Example 2: Wellhead platform equipped with an automatic oil pipe tripping and lowering device

[0038] On the basis of Example 1, the swing arm 11 of this example adds a telescopic structure, the swing arm 11 includes a lower swing arm 15 and an upper swing arm 16, the top end of the upper swing arm 16 is fixedly connected to the outer end of the cross bar, the bottom end of the upper swing arm 16 is inserted into the top of the lower swing wall and the two are clearance-matched, so that the lower swing arm 15 is telescopically matched along the length direction of the upper swing arm 16. The upper swing arm 16 and the lower swing arm 15 are square steel pipes respectively, and a telescopic hydraulic cylinder is fixedly installed at the bottom of the lower swing arm 15, and a telescopic cylinder rod that telescopes with the lower swing arm 15 is provided at the top of the telescopic hydraulic cylinder, and the top end of the telescopic cylinder rod is fixed to the bottom of the upper swing arm 16. Based on the telescopic hydraulic cylinder, the length of the swing arm 11 is controlled, so as to realize the telescopic movement of the mounting frame 12, so that the supporting wheel 13 is moved away from or close to the platform body, so that the cooperation with the oil pipe is more flexible, and the range of lifting and transportation is wider.

[0039] In addition, different from Example 1, the structure of the mounting frame 12 of this example is different. The mounting frame 12 of this example includes horizontal bars that are symmetrically arranged on the left and right, the outer ends of the horizontal bars are fixed to the top ends of the swing arms 11, and the support wheels 13 are installed at the inner ends of the two horizontal bars.

Claims

1. An automatic oil pipe loading and unloading device, characterized in that: It includes a translation mechanism and a pick-up and delivery mechanism. The translation mechanism includes a portal frame with a reciprocating translation stroke. The pick-up and delivery mechanism is installed on the portal frame. The pick-up and delivery mechanism includes a swing arm and a mounting frame. There are two swing arms and they are respectively arranged on both sides of the portal frame. The mounting frame extends horizontally and its two ends are respectively fixed to the top of the swing arm. A supporting wheel is rotatably installed in the middle part of the mounting frame. The bottom end of the swing arm is hinged to the middle or lower part of the portal frame so that the swing arm has a swing stroke. The starting position of the swing stroke is that the swing arm is in a vertical state.

2. According to claim 1, the automatic oil pipe loading and unloading device is characterized in that: The pick-up and delivery mechanism also includes two swing hydraulic cylinders, the top ends of which are hinged to the top end of the portal frame, the bottom ends of the swing hydraulic cylinders are provided with swing levers that cooperate with them, and the bottom ends of the swing levers are hinged to the swing arms.

3. According to claim 1, the automatic oil pipe loading and unloading device is characterized in that: The mounting frame includes a horizontal bar that is symmetrically arranged on the left and right, the outer end of the horizontal bar is fixed to the top of the swing arm, the adjacent inner end of the horizontal bar is provided with a folding rod bent toward one side of the portal frame, the plane where the folding rod and the horizontal bar are located is perpendicular to the swing arm, and the two ends of the supporting wheel are respectively rotatably connected to the inner end of the folding rod.

4. According to claim 1, the automatic oil pipe loading and unloading device is characterized in that: The portal frame includes a crossbeam on the top side and columns on both sides, and the two ends of the crossbeam are respectively fixedly connected to the top of the columns on the same side. The translation mechanism also includes a track group, which includes two groups and are respectively arranged under the columns on the same side. A slider is slidably matched on the track group, and the slider is fixed to the bottom of the column on the same side.

5. According to claim 4, the automatic oil pipe loading and unloading device is characterized in that: The translation mechanism also includes two groups of translation hydraulic cylinders, which are arranged in the same direction as the track group, and one end of the translation hydraulic cylinder is telescopically matched with a translation lever, and the end of the translation lever away from the translation hydraulic cylinder is connected to a driving member, and the driving member is fixedly connected to the bottom of the column.

6. A wellhead platform, comprising a platform body, wherein the platform body is provided with an installation opening for passing an oil pipe, characterized in that: The platform body is equipped with an automatic oil pipe loading and unloading device as claimed in any one of claims 1 to 5, the starting point of the reciprocating translation stroke of the gantry is the side of the platform body, and the end point is the side of the installation port, when the swing arm is in a vertical state, the supporting wheel is located above the installation port and contacts the oil pipe coaxial with the installation port.

7. A wellhead platform according to claim 6, characterized in that: The translation mechanism includes two groups of track groups arranged in the same direction and a translation hydraulic cylinder, each group of the track groups is correspondingly arranged below the two sides of the portal frame, a slider slidably connected to the track group is fixed at the bottom end of the portal frame, the translation hydraulic cylinder is fixedly installed on the bottom surface or top surface of the platform body, and a driving member is connected to the end of the translation lever away from the translation hydraulic cylinder, and the driving member is fixedly connected to the bottom of the column.

8. A wellhead platform according to claim 7, characterized in that: The translation hydraulic cylinder is installed on the bottom surface of the platform body. Each track group includes two linear tracks arranged in parallel. A strip gap is provided between the two linear tracks in the same row. Long strip holes are provided on the platform body corresponding to the strip gap. The driving member passes through the strip hole and is fixed to the bottom end of the column.

Images