Oil and gas well under-pressure operation automation equipment

Abstract

The utility model provides automation equipment for operation under pressure of an oil and gas well, which belongs to the field of operation under pressure of the oil and gas well and comprises a wellhead operation device mounted on a safety slip of an operation machine under pressure and a mast type manipulator used for conveying an oil pipe to the wellhead operation device. The mast type mechanical arm comprises a mast and a mechanical arm body installed on the mast. The mast is connected with the under-pressure operation machine through a connecting support and comprises an inner sleeve mast, an outer sleeve mast, a first driving piece and a first winch. The first winch is connected with the manipulator and drives the manipulator to move up and down. The utility model solves the technical problems that the existing fixed derrick type under-pressure operation depends on manual operation to control the operation, the operation environment is poor, the operation efficiency is low, and the danger coefficient is large, and has the characteristics of high automation degree and high operation efficiency.

Description

Technical Field

[0001] The utility model belongs to the field of oil and gas well pressure operation, in particular to an oil and gas well pressure operation automation equipment. Background Art

[0002] Fixed derrick-type pressure-operating devices mainly use mast winch systems or other original equipment to carry out operations such as removing and releasing oil pipes and making and breaking buckles. The entire process relies on manual operation and control, which has problems such as poor working environment, low working efficiency and high risk factor. Utility Model Content

[0003] Details of one or more embodiments of the present invention are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent.

[0004] The utility model provides an automated equipment for oil and gas well pressure operation, which solves the technical problems of existing fixed derrick pressure operation which relies on manual operation control, has poor working environment, low working efficiency and high risk factor, and has the characteristics of high automation and working efficiency.

[0005] The utility model discloses an automated equipment for pressure-operated oil and gas wells, comprising a wellhead operating device installed on a safety slip of a pressure-operated machine, and a mast-type manipulator for conveying an oil pipe to the wellhead operating device; the mast-type manipulator comprises a mast, and a manipulator installed on the mast; the mast is connected to the pressure-operated machine through a connecting bracket, comprising: an inner mast, an outer mast, a first driving member, and a first winch; the outer mast is sleeved outside the inner mast and is telescopically connected to the inner mast; the first driving member drives the outer mast to slide up and down along the inner mast to realize the mast telescopic; the first winch is connected to the manipulator and drives the manipulator to move up and down; the manipulator further includes: an upper claw and a lower claw, a second drive member, and a third drive member; the upper claw and the lower claw are arranged up and down to grasp the oil pipe; the second drive member is used to vertically rotate the manipulator so that the upper claw and / or the lower claw are taken over from the conveyor to rotate the oil pipe to a vertical state; the third drive member is used to horizontally rotate the manipulator so that the upper claw and / or the lower claw are taken over from the conveyor and the oil pipe is moved to the wellhead position; the mast also includes a crane, and a wire rope that drives the manipulator to move up and down.

[0006] In some embodiments, the upper gripper and the lower gripper each include: a gripper body, a tooth plate fixed on the gripper body, a connecting rod connected to the gripper body via a pin shaft, and a gripper cylinder driving the connecting rod.

[0007] In some embodiments, the manipulator also includes a connecting frame, a sliding frame, and a ring claw; the upper claw, the lower claw, and the ring claw are connected to the connecting frame; the manipulator is slidingly connected to the mast through the sliding frame; the third driving member is arranged on the connecting frame, and the second driving member is arranged on the connecting frame.

[0008] In some of the embodiments, the upper claw and the lower claw also each include a guide block connecting the connecting rod and the claw cylinder and used to guide the movement of the connecting rod, a guide plate installed on one side of the claw body and used to guide when the claw body is connected to the oil pipe, and a guide rod for connecting the connecting frame and the upper claw and the lower claw.

[0009] In some of the embodiments, the wellhead operation device includes: a locking structure for locking the threads between the oil pipe transported to the wellhead and the first oil pipe above the wellhead; a fourth driving member for driving the locking structure to open and close; a main clamp for centering the wellhead; and a backup clamp for clamping the oil pipe.

[0010] In some of the embodiments, the main tongs and the backup tongs are installed on a wellhead frame, and the wellhead operating device is installed on the safety slips of the pressure operating machine through the wellhead frame.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model provides an automated device for oil and gas well pressure operation. By arranging a wellhead operation device and a mast-type manipulator and specifically defining the structures of the wellhead operation device and the mast-type manipulator, pressure wellhead operation can be realized without manual operation, and the device has the characteristics of high production efficiency and high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0014] Figure 1 A schematic diagram of the pipe delivery state of the oil and gas well pressure operation automation equipment provided by the embodiment of the utility model;

[0015] Figure 2 A schematic diagram of the pipe raising and lowering state of the automated equipment for oil and gas well pressure operation provided by the embodiment of the utility model;

[0016] Figure 3 A schematic diagram of the structure of a mast-type manipulator provided by an embodiment of the utility model;

[0017] Figure 4 A schematic diagram of the structure of the manipulator provided by an embodiment of the utility model;

[0018] Figure 5 Another schematic diagram of the structure of the manipulator provided by the embodiment of the utility model;

[0019] Figure 6 A schematic diagram of the structure of the upper gripper provided in an embodiment of the utility model;

[0020] Figure 7 Another schematic diagram of the structure of the upper gripper provided by an embodiment of the utility model;

[0021] Figure 8 A schematic diagram of the structure of a wellhead operation device provided by an embodiment of the utility model;

[0022] In the above figures: 1. Wellhead operation device; 101. Main tongs; 102. Clamping structure; 103. Backup tongs; 104. Fourth drive member; 105. Wellhead frame; 106. Inner guide rail; 107. Outer guide rail; 108. Forward and backward moving cylinder; 109. Shift assembly; 2. Mast; 201. Connecting bracket; 202. Inner mast; 203. Outer mast; 204. First drive member; 205. First winch; 206. Overhead crane; 207. Wire rope; 2 08. Second winch; 3. Manipulator; 301. Upper claw; 3011. Claw body; 3012. Tooth plate; 3013. Connecting rod; 3014. Claw cylinder; 3015. Guide block; 3016. Guide plate; 3017. Guide rod; 302. Lower claw; 303. Second driving member; 304. Third driving member; 305. Connecting frame; 306. Sliding frame; 307. Ring claw; 4. Belt pressure machine; 401. Safety slip; 5. Conveyor. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described and illustrated in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. Based on the embodiments provided by the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] The utility model provides an automated equipment for oil and gas well pressure operation, such as Figure 1 , 2 As shown, the oil and gas well pressure operation automation equipment includes a wellhead operation device 1 installed on a safety slip 401 of a pressure operation machine 4, and a mast 2 manipulator 3 device for conveying the oil pipe to the wellhead operation device 1; Figure 3As shown, the mast 2 manipulator 3 device includes a mast 2 and a manipulator 3 installed on the mast 2; the mast 2 is connected to the belt pressure working machine 4 through a connecting bracket 201, including: an inner sleeve mast 202, an outer sleeve mast 203, a first driving member 204, and a first winch 205; the outer sleeve mast 203 is sleeved outside the inner sleeve mast 202 and is telescopically connected to the inner sleeve mast 202; the first driving member 204 drives the outer sleeve mast 203 to slide up and down along the inner sleeve mast 202 to achieve the telescopic movement of the mast 2; the first winch 205 is connected to the manipulator 3 and drives the manipulator 3 to move up and down; as shown Figure 4 , 5 As shown, the manipulator 3 further includes: an upper claw 301 and a lower claw 302, a second drive member 303, and a third drive member 304; the upper claw 301 and the lower claw 302 are arranged up and down, and are used to grasp the oil pipe; the second drive member 303 is used to vertically rotate the manipulator 3 so that the upper claw 301 and / or the lower claw 302 can take over from the conveyor 5 to rotate the oil pipe to a vertical state; the third drive member 304 is used to horizontally rotate the manipulator 3 so that the upper claw 301 and / or the lower claw 302 can take over from the conveyor 5 and move the oil pipe to the wellhead position. Further, the mast 2 also includes a crane 206, and a wire rope 207 that drives the manipulator 3 to move up and down. The mast 2 also includes a second winch 208. The second winch 208 is used as a backup winch for moving special tools.

[0025] The above-mentioned oil and gas well pressure operation automation equipment realizes pressure wellhead operation without manual operation by setting the wellhead operation device 1 and the mast 2 manipulator 3 device, and specifically defines the structure of the wellhead operation device 1 and the mast 2 manipulator 3 device, and has the characteristics of high production efficiency and high safety. Among them, the first driving member 204 drives the inner mast 202 and the outer mast 203 to move relative to each other, so that the mast 2 switches between the working state and the transportation state. The first winch 205 is connected to the manipulator 3 through the roller of the overhead crane 206, which serves as the power for the manipulator 3 to move up and down. The upper claw 301 and the lower claw 302 grab the oil pipe at the same time. If one claw fails, the other claw can also grab the oil pipe. The second driving member 303 rotates the manipulator 3 vertically, which can realize the gripper from the conveyor 5 to rotate the oil pipe to a vertical state. The third driving member 304 moves the oil pipe from the conveyor 5 to the wellhead position. The manipulator 3 frame is equipped with bearings, which can realize the manipulator 3 to move up and down on the mast 2. The ring claw 307 can prevent the oil pipe from shaking when the buckle is removed from the oil pipe.

[0026] like Figure 6 , 7As shown, the upper hand claw 301 and the lower hand claw 302 each include: a claw body 3011, a tooth plate 3012 fixed on the claw body 3011, a connecting rod connected to the claw body 3011 through a pin shaft, and a hand claw cylinder 3014 driving the connecting rod. Further, in some embodiments, the manipulator 3 also includes a connecting frame 305, a sliding frame 306, and a ring claw 307; the upper hand claw 301, the lower hand claw 302 and the ring claw 307 are connected to the connecting frame 305; the manipulator 3 is slidably connected to the mast 2 through the sliding frame 306; the third driving member 304 is arranged on the connecting frame 305, and the second driving member 303 is arranged on the connecting frame 305. Furthermore, the upper hand claw 301 and the lower hand claw 302 each include a guide block 3015 connecting the connecting rod 3013 and the hand claw oil cylinder 3014 and used to guide the movement of the connecting rod 3013, a guide plate 3016 installed on one side of the claw body 3011 and used to guide when the claw body 3011 is connected to the oil pipe, and a guide rod 3017 used to connect the connecting frame 305 and the upper hand claw 301 and the lower hand claw 302. Furthermore, the guide rod 3017 cooperates with the spring to play a buffering role.

[0027] like Figure 8 As shown, the wellhead operation device 1 includes: a buckle structure 102 for buckling the threads between the oil pipe transported to the wellhead and the first oil pipe above the wellhead; a fourth driving member 104 for driving the buckle structure 102 to open and close; a main tong 101 centered on the wellhead, and a backup tong 103 for clamping the oil pipe. The main tong 101 and the backup tong 103 are installed on the wellhead frame 105, and the wellhead operation device 1 is installed on the safety slip 401 of the pressure operation machine 4 through the wellhead frame 105. In some embodiments, the wellhead operation device 1 also includes an inner guide rail 106, an outer guide rail 107, and a forward and backward moving cylinder 108 installed on the wellhead frame 105. The inner guide rail 106, the outer guide rail 107, and the forward and backward moving cylinder 108 drive the main tong 101 and the backup tong 103 to move.

[0028] During normal operation, the automatic hydraulic tongs and the buckle structure are fixed on the conventional pressure working machine through the wellhead frame 105, wherein the main tongs 101 and the backup tongs 103 drive the inner guide rail 106 to move relative to the outer guide rail 107 through the automatic hydraulic tongs moving cylinder, so that the automatic hydraulic tongs are away from the wellhead, the buckle structure 102 is closed, the mast-type manipulator with the oil pipe falls through the buckle structure 102 to the center of the lower oil pipe thread buckle, the buckle structure 102 is opened, the center of the main tongs 101 moves to the center wellhead to unload the oil pipe buckle, and the shift assembly 109 automatically changes the unloading speed of the main tongs 101 through the program. The main tongs 101 are used for unloading power on the oil pipe, and the backup tongs 103 are used to clamp the oil pipe. When a special tool is lowered, the buckle structure 102 is opened, the backup tongs 103 are opened, and the automatic hydraulic tongs drive the inner guide rail 106 to move relative to the outer guide rail 107 through the automatic hydraulic tongs moving cylinder, so that the automatic hydraulic tongs are away from the wellhead, which is convenient for the lowering of large-diameter tools.

[0029] The working process of the above-mentioned oil and gas well pressure operation automation equipment is as follows:

[0030] The first driving member 204 drives the inner mast 202 and the outer mast 203 to move relative to each other, so that the mast 2 switches between the working state and the transportation state. The first winch 205 is connected to the manipulator 3 through the roller of the overhead crane 206, which serves as the power for the manipulator 3 to move up and down. The upper claw 301 and the lower claw 302 grab the oil pipe at the same time. If one claw fails, the other claw can also grab the oil pipe. The second driving member 303 rotates the manipulator 3 vertically, which can realize the gripper from the conveyor 5 to rotate the oil pipe to a vertical state. The third driving member 304 takes over the oil pipe from the conveyor 5 and moves it to the wellhead position. The manipulator 3 frame is equipped with bearings, which can realize the manipulator 3 to move up and down on the mast 2.

[0031] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0032] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An automated equipment for oil and gas well pressure operation, characterized in that: It includes a wellhead operation device installed on the safety slip of the pressure operation machine, and a mast-type manipulator for conveying the oil pipe to the wellhead operation device; The mast-type manipulator comprises a mast, and a manipulator mounted on the mast; The mast is connected to the belt pressure working machine through a connecting bracket, and includes: Inner mast; An outer mast is sleeved outside the inner mast and is telescopically connected to the inner mast; The first driving member drives the mechanism to drive the outer mast to slide up and down along the inner mast to achieve telescopic movement of the mast; A first winch, connected to the manipulator and driving the manipulator to move up and down; The manipulator further comprises: The upper gripper and the lower gripper are arranged up and down to grasp the oil pipe; A second driving member is used to vertically rotate the manipulator so that the upper gripper and / or the lower gripper can be connected from the conveyor to rotate the oil pipe to a vertical state; The third driving member is used to horizontally rotate the manipulator so that the upper gripper and / or the lower gripper can take over from the conveyor and move the oil pipe to the wellhead position. The mast also includes a crane and a steel wire rope for driving the manipulator to move up and down.

2. The oil and gas well pressure operation automation equipment according to claim 1 is characterized in that: The upper hand claw and the lower hand claw each include: a claw body, a tooth plate fixed on the claw body, a connecting rod connected to the claw body through a pin shaft, and a hand claw oil cylinder driving the connecting rod.

3. The oil and gas well pressure operation automation equipment according to claim 2 is characterized in that: The manipulator also includes a connecting frame, a sliding frame, and a ring claw; the upper hand claw, the lower hand claw, and the ring claw are connected to the connecting frame; the manipulator is slidably connected to the mast through the sliding frame; the third driving member is arranged on the connecting frame, and the second driving member is arranged on the connecting frame.

4. The oil and gas well pressure operation automation equipment according to claim 3 is characterized in that: The upper hand claw and the lower hand claw also each include a guide block connecting the connecting rod and the hand claw cylinder and used to guide the movement of the connecting rod, a guide plate installed on one side of the claw body and used to guide when the claw body is connected to the oil pipe, and a guide rod for connecting the connecting frame and the upper hand claw and the lower hand claw.

5. The oil and gas well pressure operation automation equipment according to claim 1 is characterized in that: The wellhead operation device includes: a locking structure for locking the threads between the oil pipe transported to the wellhead and the first oil pipe above the wellhead; a fourth driving member for driving the locking structure to open and close; a main clamp centered on the wellhead; and a backup clamp for clamping the oil pipe.

6. The oil and gas well pressure operation automation equipment according to claim 5 is characterized in that: The main tongs and the backup tongs are installed on a wellhead frame, and the wellhead operating device is installed on the safety slips of the pressure operating machine through the wellhead frame.

Images