Sealing turntable for well repair

Abstract

The utility model discloses a sealing rotary table for well repair, which comprises a sealing rotary table main body, the sealing rotary table main body comprises a main sealing rotary table body, a rubber rotary table core body is rotatably arranged in the main sealing rotary table body through a bearing, and a rotary sealer body is arranged on the lower surface of the main sealing rotary table body. A rubber rotary sealer core body is rotationally arranged in the rotary sealer body through a bearing; by designing the lubricating mechanism, after the oil injection flexible brush body is fixed to the inner surface of the mounting hole and oil is injected into the oil storage groove, lubricating oil in the oil storage groove is drained to the end of the oil injection flexible brush body through the drainage channel, and the lubricating oil flows into the end of the oil injection flexible brush body. The mounting bolt is in rotary contact with the surface of the end of the oiling flexible brush body to enable lubricating oil to be attached to the outer surface of the mounting bolt for lubricating treatment, so that the mounting bolt is oiled, lubricated, rotated and fixed in the mounting hole, the mounting bolt is not easy to rust after being exposed, and disassembly is more convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of sealed turntables, and particularly relates to a sealed turntable for workover. Background Technique

[0002] During the workover process in the oilfield, operations such as drilling and milling are essential construction processes in the workover project. Since the power for rotary operations comes from the kelly bar cooperating with the wellhead turntable, the wellhead seal is usually achieved through a simple sealed turntable. And the existing sealed turntable is a sealed installation device used for sealing rotation during workover. When the sealed turntable is installed and used, it is convenient to reinforce and install the bottom edge thereof. The installation is simple. At the same time, when the main sealed turntable body is installed, it is easy to lubricate and install the bolts. When damaged and repaired, it is convenient to disassemble and install the installation bolts, improving the convenience of disassembly, installation, lubrication of the sealed turntable body during workover installation, use, damage and repair;

[0003] According to a disclosed sealed turntable for workover with the authorized patent application number 201420769284.6

[0004] it is known that when the existing sealed turntable is used in workover, the main sealed turntable body and the rotary seal body are fixedly installed by installing bolts passing through the inside of the installation holes. And during the fixed installation, it is not convenient to perform oil injection and lubrication treatment. After long-term use after installation, the installation bolts are corroded. When damaged and repaired inside the sealed turntable, it causes inconvenience in disassembly. Even the bolts are severely corroded and cannot be disassembled, affecting the convenience of disassembly, installation, and lubrication of the sealed turntable during workover installation, use, damage, and repair. For this reason, the utility model proposes a sealed turntable for workover. Content of the Utility Model

[0005] The purpose of the utility model is to provide a sealed turntable for workover, so as to solve the problem that when the sealed turntable is used in workover, the installation bolts pass through the inside of the installation holes, it is not convenient to perform oil injection and lubrication treatment. After long-term use after installation, the installation bolts are corroded. When damaged and repaired inside the sealed turntable, it causes inconvenience in disassembly. Even the bolts are severely corroded and cannot be disassembled, affecting the convenience of disassembly, installation, and lubrication of the sealed turntable during workover installation, use, damage, and repair.

[0006] To achieve the above object, the utility model provides the following technical solution: A sealing turntable for well workover, including a sealing turntable main body, the sealing turntable main body includes a main sealing turntable body, a rubber turntable core is rotatably arranged inside the main sealing turntable body through a bearing, a rotary seal body is arranged on the lower surface of the main sealing turntable body, a rubber rotary seal core is rotatably arranged inside the rotary seal body through a bearing, mounting holes are formed at the bottom end of the main sealing turntable body and the top edge of the rotary seal body, mounting bolts are rotated inside the two mounting holes, two fasteners are arranged at the bottom edge of the rotary seal body, and the following are further arranged on the sealing turntable main body:

[0007] A lubricating mechanism, and the lubricating mechanism includes a storage component arranged at the inner edge of the mounting hole, and an oil injection lubricating component is arranged on the inner surface of the storage component located on the inner surface of the mounting hole;

[0008] A reinforcement installation mechanism, and the reinforcement installation mechanism includes a fixed connection component arranged at the connection of the ends of the two fasteners, a movable connection component is arranged on the outer surface of the rotary seal body, and a rotary fixing component is arranged at the end of the movable connection component.

[0009] Preferably, the storage component includes an oil storage tank formed at the inner edge of the inner surface of the mounting hole inside the main sealing turntable body, an oil inlet is formed at one side of the oil storage tank at the bottom edge of the main sealing turntable body, and a sealing cover is rotated at the end of the oil inlet.

[0010] Preferably, the oil injection lubricating component includes a fixing ring fixed to the inner edge of the inner surface of the mounting hole by screws, an oil injection flexible brush body is fixed inside the fixing ring by screws, the end of the oil injection flexible brush body extends into the oil storage tank, and a drainage channel is formed inside the oil injection flexible brush body.

[0011] Preferably, the drainage channel and the inside of the oil injection flexible brush body are of an integral structure, and the oil injection flexible brush body and the inner surface of the mounting hole are fixedly connected by the fixing ring.

[0012] Preferably, the fixed connection component includes a fixing bolt rotatably connected at the connection of the ends of the two fasteners, and the two fixing bolts are symmetrically arranged.

[0013] Preferably, the movable connection component includes a movable groove formed at the edge of the rotary seal body, and a movable ball is movably connected inside the movable groove.

[0014] Preferably, the rotary fixing component includes a threaded rod integrally formed at the end of the movable ball, a through hole is formed at the edge of the fastener, the threaded rod passes through the inside of the through hole, and a fastening nut is rotated on the surface of the fastener at the end of the threaded rod.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] By designing a lubrication mechanism, after the oil injection flexible brush body is fixed on the inner surface of the mounting hole, and after the inside of the oil storage tank is filled with oil, the lubricating oil inside the oil storage tank is drained to the end of the oil injection flexible brush body through the drainage channel. After the lubricating oil flows into the end of the oil injection flexible brush body, the mounting bolt rotates and contacts the surface of the end of the oil injection flexible brush body to attach the lubricating oil to the outer surface of the mounting bolt for lubrication treatment, so that the mounting bolt is filled with oil and lubricated and rotated and fixed inside the mounting hole. After installation, it is exposed to the outside and is not likely to cause corrosion of the mounting bolt. Moreover, when used and damaged and repaired inside the sealing turntable body, it is more convenient to disassemble the mounting bolt, and it is not likely to rust and cause inability to disassemble, improving the convenience of disassembly, installation and lubrication of the sealing turntable body during workover installation, use, damage and repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the utility model;

[0018] Figure 2 is a schematic cross-sectional structural diagram of the utility model;

[0019] Figure 3 is the utility model Figure 2 partial enlarged structural diagram at part A;

[0020] Figure 4 is the utility model Figure 3 partial enlarged structural diagram at part B;

[0021] Figure 5 is a schematic structural diagram of the fixing ring, oil injection flexible brush body and drainage channel of the utility model;

[0022] Figure 6 is a schematic cross-sectional structural diagram of the rotary seal body and fastener of the utility model;

[0023] Figure 7 is the utility model Figure 6 partial enlarged structural diagram at part C;

[0024] In the figure: 100, sealing turntable body; 101, main sealing turntable body; 102, rubber turntable core; 103, rotary seal body; 104, fastener; 1041, fixing bolt; 1042, through hole; 1043, fastening nut; 1044, threaded rod; 1045, movable groove; 1046, movable ball; 105, mounting bolt; 106, rubber rotary seal core; 107, mounting hole; 1071, oil storage tank; 1072, oil inlet; 1073, fixing ring; 1074, oil injection flexible brush body; 1075, drainage channel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1 to 7 , the present utility model provides a technical solution: a sealing rotary table for well workover, including a sealing rotary table main body 100. The sealing rotary table main body 100 includes a main sealing rotary table body 101. A rubber rotary table core 102 is rotatably arranged inside the main sealing rotary table body 101 through a bearing. A rotary seal body 103 is arranged on the lower surface of the main sealing rotary table body 101. A rubber rotary seal core 106 is rotatably arranged inside the rotary seal body 103 through a bearing. Installation holes 107 are respectively formed at the bottom end of the main sealing rotary table body 101 and the top edge of the rotary seal body 103. An installation bolt 105 is rotatably arranged inside the two installation holes 107. When the bottom end of the main sealing rotary table body 101 is closed on the top of the rotary seal body 103, the installation bolt 105 passes through the inside of the installation hole 107 for installation. Two fasteners 104 are arranged at the bottom edge of the rotary seal body 103. The fasteners 104 are closed at the bottom edge of the rotary seal body 103 again for reinforcement installation and sealed connection. The following are further provided on the sealing rotary table main body 100:

[0027] A lubrication mechanism, and the lubrication mechanism includes a storage component arranged at the inner edge of the installation hole 107. An oil injection and lubrication component is arranged on the inner surface of the storage component at the inner surface of the installation hole 107. When the sealing rotary table main body 100 is installed and used, when the installation bolt 105 passes through the inside of the installation hole 107 for installation, the lubrication mechanism can lubricate the outer surface of the installation bolt 105, which is not easy to rust and cause inability to disassemble, and improves the convenience of disassembly, installation and lubrication of the sealing rotary table main body 100 during well workover installation, use, damage and repair.

[0028] In order to facilitate the storage of a certain amount of lubricating oil through the storage component for lubricating the installation operation during installation, and the disassembly and assembly are convenient. In this embodiment, preferably, the storage component includes an oil storage tank 1071 formed at the inner edge of the inner surface of the installation hole 107 inside the main sealing rotary table body 101. An oil inlet 1072 is formed at one side of the bottom edge of the main sealing rotary table body 101 and located at the oil storage tank 1071. Lubricating oil is filled into the inside of the oil storage tank 1071 through the oil inlet 1072 for oil storage and lubrication treatment inside the oil storage tank 1071. A sealing cover is rotatably arranged at the end of the oil inlet 1072, and the sealing cover is rotated after oil injection to seal and fix the end of the oil inlet 1072 for protection.

[0029] In order to facilitate the oil injection operation when the mounting bolt 105 rotates inside the mounting hole 107 through the oil injection lubrication assembly, in this embodiment, preferably, the oil injection lubrication assembly includes a fixing ring 1073 fixed to the edge of the inner surface of the mounting hole 107 by screws. An oil injection flexible brush body 1074 is fixed inside the fixing ring 1073 by screws, which facilitates the fixed installation of the oil injection flexible brush body 1074 through the fixing ring 1073. The end of the oil injection flexible brush body 1074 extends into the oil storage tank 1071. A drainage channel 1075 is provided inside the oil injection flexible brush body 1074. After installation, the lubricating oil is drained to the end of the oil injection flexible brush body 1074 through the drainage channel 1075. When the mounting bolt 105 rotates, the outer surface of the mounting bolt 105 contacts the end of the oil injection flexible brush body 1074 to apply the lubricating oil, which facilitates uniform lubrication during rotation installation, is not easily rusted after installation, and is convenient for disassembly.

[0030] A reinforcement installation mechanism, and the reinforcement installation mechanism includes a fixed connection component provided at the connection of the ends of the two fasteners 104. An active connection component is provided on the outer surface of the rotary seal body 103, and a rotary fixing component is provided at the end of the active connection component. When the fasteners 104 are closed at the bottom end of the rotary seal body 103, the reinforcement installation mechanism can be used to reinforce and install the fasteners 104. The installation is simple and convenient, the installation cost is low, and the convenience and fixity of the installation of the fasteners 104 and the rotary seal body 103 by the sealing turntable main body 100 during well repair operations are improved.

[0031] In order to facilitate the fixed installation of the two fasteners 104 after they are closed on the outer surface of the rotary seal body 103 through the fixed connection component, in this embodiment, preferably, the fixed connection component includes a fixing bolt 1041 rotatably connected at the connection of the ends of the two fasteners 104, and the two fixing bolts 1041 are symmetrically arranged. When the two fasteners 104 are closed on the bottom surface of the rotary seal body 103, the fixing bolt 1041 is rotated to fixedly install the two fasteners 104.

[0032] In order to facilitate the active connection of the threaded rod 1044 through the active connection component and facilitate its installation through the inside of the through hole 1042, in this embodiment, preferably, the active connection component includes an active groove 1045 provided at the edge of the rotary seal body 103. An active ball 1046 is movably connected inside the active groove 1045. The active ball 1046 is moved inside the active groove 1045 to actively connect the threaded rod 1044, which facilitates its installation through the through hole.

[0033] In order to facilitate the strengthening of the fixed installation after closing the edge of the fastener 104 by rotating the fixing component, in this embodiment, preferably, the rotating fixing component includes a threaded rod 1044 integrally formed at the end of the movable ball 1046. A through hole 1042 is formed at the edge of the fastener 104. The threaded rod 1044 passes through the inside of the through hole 1042. The threaded rod 1044 can be installed through the inside of the through hole 1042, which is convenient for installation. A fastening nut 1043 is rotated on the surface of the fastener 104 at the end of the threaded rod 1044. Until the fastening nut 1043 is rotated at the end of the threaded rod 1044 to strengthen the fixed installation of the threaded rod 1044 and the edge of the fastener 104, it is easy to fix and install, and the installation is convenient and the cost is low.

[0034] The working principle and usage process of the present utility model: For this kind of sealing rotary table for well workover, before use, during installation, when the bottom end of the main sealing rotary table body 101 is placed on the top end of the rotary seal body 103 and closed, before the installation bolt 105 passes through the inside of the installation hole 107, the oil injection flexible brush body 1074 is passed through the inner surface edge of the installation hole 107, and the fixing ring 1073 is closed on the inner surface to fixedly install the oil injection flexible brush body 1074. Lubricating oil is filled into the inside of the oil storage tank 1071 through the oil inlet 1072, and the oil inlet 1072 is hermetically installed by rotating the sealing cover. At this time, after the oil storage tank 1071 is filled with oil, the lubricating oil inside the oil storage tank 1071 is drained to the end of the oil injection flexible brush body 1074 by the drainage channel 1075. After the lubricating oil flows into the end of the oil injection flexible brush body 1074, the installation bolt 105 rotates and contacts the surface of the end of the oil injection flexible brush body 1074 to attach the lubricating oil to the outer surface of the installation bolt 105 for lubrication treatment, so that the installation bolt 105 is lubricated and rotated and fixed inside the installation hole 107, which is convenient for lubricating and installing the installation bolt 105 all the time, and it is not easy to cause rust of the installation bolt 105 when it is exposed to the outside after installation, and it is more convenient to disassemble the installation bolt 105 during the damage repair of the sealing rotary table body 100 inside, and it is not easy to generate rust and cause inability to disassemble, improving the convenience of disassembly, installation and lubrication of the sealing rotary table body 100 during well workover installation, damage and repair;

[0035] Finally, when the sealed rotary table body 100 is used after installation, when the fastener 104 is closed at the bottom edge of the rotary seal body 103, during closing, the movable ball 1046 is movably connected inside the movable groove 1045 until the end of the threaded rod 1044 penetrates inside the through hole 1042. Then, the fastening nut 1043 is rotated again at the end of the threaded rod 1044 to reinforce and install the fastener 104. The ends of the two fasteners 104 are further reinforced and installed through the fixing bolts 1041. This facilitates the strengthening and fixing of the connection between the fastener 104 and the bottom edge of the rotary seal body 103. The installation operation is simpler and more convenient. At the same time, the edge is uniformly reinforced and installed. Compared with the existing motor-driven screw installation, the cost is lower, and the convenience and fixity of the installation of the fastener 104 and the rotary seal body 103 during well workover operations of the sealed rotary table body 100 are improved.

[0036] Although the embodiments of the present invention have been shown and described (see the above detailed description), for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing turntable for well repair, comprising a sealing turntable body (100), the sealing turntable body (100) comprising a main sealing turntable body (101), a rubber turntable core (102) rotating through a bearing inside the main sealing turntable body (101), a rotary sealer body (103) being arranged on the lower surface of the main sealing turntable body (101), a rubber rotary sealer core (106) rotating through a bearing inside the rotary sealer body (103), mounting holes (107) being provided at the bottom end of the main sealing turntable body (101) and at the top edge of the rotary sealer body (103), mounting bolts (105) rotating inside the two mounting holes (107), and two fasteners (104) being provided at the bottom edge of the rotary sealer body (103), characterized in that: The sealing turntable body (100) is also provided with: A lubrication mechanism, wherein the lubrication mechanism comprises a storage component arranged at the inner edge of the mounting hole (107), and an oil injection lubrication component is arranged on the inner surface of the storage component located at the inner surface of the mounting hole (107); A reinforced installation mechanism comprises a fixed connection assembly arranged at the connection between the ends of two fasteners (104); a movable connection assembly is arranged on the outer surface of the rotary sealer body (103); and a rotary fixed assembly is arranged at the end of the movable connection assembly.

2. The sealing rotary disc for well repairing according to claim 1, characterized in that: The storage assembly comprises an oil storage tank (1071) which is opened at the edge of the inner surface of the mounting hole (107) and is located inside the main sealing turntable body (101); an oil inlet (1072) is opened at the bottom edge of the main sealing turntable body (101) and is located on one side of the oil storage tank (1071); and a sealing cover is rotatably provided at the end of the oil inlet (1072).

3. The sealing rotary disc for well repairing according to claim 2, characterized in that: The oil injection lubrication assembly comprises a fixing ring (1073) fixed to the inner surface edge of the mounting hole (107) by screws, an oil injection flexible brush body (1074) is fixed inside the fixing ring (1073) by screws, an end of the oil injection flexible brush body (1074) extends to the inside of the oil storage tank (1071), and a drainage channel (1075) is opened inside the oil injection flexible brush body (1074).

4. The sealing rotary disc for well repairing according to claim 3, characterized in that: The drainage channel (1075) and the interior of the oil-injected flexible brush body (1074) are an integrated structure, and the oil-injected flexible brush body (1074) and the inner surface of the mounting hole (107) are fixedly connected via the fixing ring (1073).

5. The sealing rotary disc for well repairing according to claim 1, characterized in that: The fixed connection assembly comprises a fixing bolt (1041) rotatably connected to the connection between the ends of the two fasteners (104), and the two fixing bolts (1041) are symmetrically arranged.

6. The sealing rotary disc for well repairing according to claim 1, characterized in that: The movable connection assembly comprises a movable groove (1045) opened at the edge of the rotary sealer body (103), and a movable ball (1046) is movably connected inside the movable groove (1045).

7. The sealing rotary disc for well repairing according to claim 6, characterized in that: The rotating fixing assembly includes a threaded rod (1044) integrally formed at the end of a movable ball (1046); a through hole (1042) is opened at the edge of the fastener (104); the threaded rod (1044) passes through the inside of the through hole (1042); the end of the threaded rod (1044) is located on the surface of the fastener (104) and is rotatably provided with a fastening nut (1043).

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