Rotary blowout preventer rubber core convenient to install

Abstract

The utility model relates to the technical field of rotary blowout preventer rubber cores, and discloses a rotary blowout preventer rubber core convenient to install, which comprises a rotary blowout preventer mechanism and further comprises a rubber core mechanism, the inner wall of the side face of the rotary blowout preventer mechanism is movably connected with the side face of the rubber core mechanism, the rotary blowout preventer mechanism comprises a shell, and the shell is fixedly connected with the rubber core mechanism. The rubber core mechanism comprises a rubber core main body; in the installation process, the rubber core body is inserted into the shell, the fixing cover covers the top end of the shell, the fixing ring is clamped into the clamping groove, the two-way threaded bolt penetrates through the rubber core body and the through hole reserved in the fixing cover, and the two fixing nuts are tightly attached to the top end of the fixing cover to fix the fixing cover. Meanwhile, the rotating directions of the upper fixing nut and the lower fixing nut are opposite, the two fixing nuts extrude each other to avoid falling off in the using process, the rotary blowout preventer mechanism is installed on a drilled well in the using time, a drill rod penetrates through a through hole in the rubber core body and is tightly attached to the inner wall of the side face of the rubber core body, and the working efficiency is improved advantageously.

Description

Technical Field

[0001] The utility model relates to the technical field of a rotary blowout preventer rubber core, and more specifically to a rotary blowout preventer rubber core which is easy to install. Background Art

[0002] Oil is an important energy source, mainly used as fuel and gasoline, and is also the raw material for many chemical industry products, such as solutions, fertilizers, pesticides and plastics. Oil is formed underground. In the process of oil extraction, it is necessary to drill oil wells. During the drilling operation, a rotary blowout preventer is used to seal the drill pipe and drilling, and allow the drill pipe to rotate under the specified wellhead pressure conditions, so that the wellhead can always remain in a closed state to facilitate wellhead pressure operations. The rubber core is an important component of the rotary blowout preventer. During use, the rubber core is tightly attached to the inner wall of the rotary blowout preventer and the side of the drill pipe to achieve sealing.

[0003] Insufficient existing technology: To ensure the sealing performance of the rotary blowout preventer rubber core during use, the rubber core is installed inside the rotary blowout preventer, and the side of the rubber core is close to the inner wall, which is inconvenient to disassemble and install for maintenance. The operation is time-consuming and laborious. Moreover, as the inner wall of the rubber core rubs against the drill pipe during use, it wears. The existing rubber core cannot determine the wear condition and is prone to leakage. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a rotary blowout preventer rubber core which is easy to install, so as to solve the problems existing in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rotary blowout preventer rubber core that is easy to install, including a rotary blowout preventer mechanism, and also including: a rubber core mechanism, the side inner wall of the rotary blowout preventer mechanism is movably connected to the side of the rubber core mechanism, the rotary blowout preventer mechanism includes a shell, the rubber core mechanism includes a rubber core body, the side of the rubber core body is movably connected to the side inner wall of the shell, the top of the rubber core body is fixedly connected with a fixing ring, the top of the rubber core body is fixedly connected with a fixing cover through a two-way threaded bolt, the side of the two-way threaded bolt is threadedly connected with a fixing nut, a slot is opened on the top inner wall of the fixing cover corresponding to the position of the fixing ring, and the top inner wall of the slot is movably connected to the top of the fixing ring.

[0006] Furthermore, a first anti-slip protrusion is fixedly connected to the side surface of the rubber core body, and a second anti-slip protrusion is fixedly connected to the inner wall of the side surface of the rubber core body.

[0007] Furthermore, a groove is formed at the bottom end of the rubber core body, and the side surface of the groove is an inclined surface.

[0008] Furthermore, a detection tube is fixedly connected inside the rubber core body, a transparent layer is provided at the top of the fixing ring corresponding to the position of the detection tube, and an observation hole is provided at the top of the fixing cover corresponding to the position of the transparent layer.

[0009] Furthermore, a partition is fixedly connected to the inner wall of the side of the detection tube, a water sensing material is installed on one side of the interior of the detection tube, and an air sensing material is installed on one side of the interior of the detection tube.

[0010] Furthermore, the inner side wall of the second anti-slip protrusion and the side surface of the first anti-slip protrusion are both inclined surfaces.

[0011] Technical effects and advantages of the utility model:

[0012] 1. The utility model inserts the rubber core body into the shell during the installation process, covers the top of the shell with the fixing cover and clamps the fixing ring into the slot, the bidirectional threaded bolt passes through the upper through holes reserved on the rubber core body and the fixing cover, and fixes the fixing cover by two fixing nuts tightly against the top of the fixing cover, and at the same time, the upper and lower fixing nuts rotate in opposite directions, and the two fixing nuts squeeze each other to avoid falling off during use, and the rotating blowout preventer mechanism is installed on the drilling well during use, the drill rod passes through the through hole on the rubber core body and tightly against the side inner wall of the rubber core body, the structure is simple, and it is conducive to improving work efficiency.

[0013] 2. The utility model evenly distributes the detection tubes inside the rubber core body. When the rubber core body is worn during use, the detection tubes are damaged, causing the water sensing material or air sensing material inside the detection tubes to come into contact with the outside world and change color. The operator observes whether the detection tubes change color through the observation hole and the transparent layer to determine whether the rubber core body is damaged, which is beneficial to improving the safety of the rubber core.

[0014] 3. The utility model uses the relatively high internal pressure of the drilling well to exert time pressure on both sides of the groove, so that the two sides of the groove are closely attached to the side inner wall of the shell and the side of the drill pipe, thereby increasing the sealing performance and being beneficial to improving the sealing performance of the rubber core. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the rubber core mechanism of the utility model;

[0018] Figure 4 This is a schematic diagram of the detection tube structure of the utility model;

[0019] Figure 5It is a schematic diagram of the fixed cover structure of the utility model.

[0020] The accompanying drawings are marked as follows: 1. Rotary blowout preventer mechanism; 101. Shell; 102. Bidirectional threaded bolt; 103. Fixing nut; 104. Fixing cover; 105. Observation hole; 106. Slot; 2. Rubber core mechanism; 201. Rubber core body; 202. Detection tube; 203. Groove; 204. Fixing ring; 205. Transparent layer; 206. First anti-slip protrusion; 207. Partition plate; 208. Second anti-slip protrusion. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution in the utility model. In addition, the forms of the various structures recorded in the following embodiments are only examples. The utility model is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0022] Reference Figures 1 to 5 The utility model provides a conveniently installed rotary blowout preventer rubber core, comprising a rotary blowout preventer mechanism 1, and also comprising: a rubber core mechanism 2, the side inner wall of the rotary blowout preventer mechanism 1 is movably connected to the side of the rubber core mechanism 2, the rotary blowout preventer mechanism 1 comprises a shell 101, the rubber core mechanism 2 comprises a rubber core body 201, the side of the rubber core body 201 is movably connected to the side inner wall of the shell 101, the top of the rubber core body 201 is fixedly connected with a fixing ring 204, the top of the rubber core body 201 is fixedly connected with a fixing cover 104 through a two-way threaded bolt 102, the side of the two-way threaded bolt 102 is threadedly connected with a fixing nut 103, a slot 106 is provided on the top inner wall of the fixing cover 104 corresponding to the position of the fixing ring 204, the slot 1 06 is movably connected with the top of the fixing ring 204. During the installation process, the rubber core body 201 is inserted into the shell 101, and the fixing cover 104 is covered on the top of the shell 101 and the fixing ring 204 is inserted into the slot 106. The two-way threaded bolt 102 passes through the reserved upper through holes on the rubber core body 201 and the fixing cover 104, and the fixing cover 104 is fixed by two fixing nuts 103 that are tightly attached to the top of the fixing cover 104. At the same time, the upper and lower fixing nuts 103 rotate in opposite directions. During use, the two fixing nuts 103 squeeze each other to avoid falling off. The rotary blowout preventer mechanism 1 is installed on the drilling well during use, and the drill pipe passes through the through hole on the rubber core body 201 and is tightly attached to the side inner wall of the rubber core body 201.

[0023] The side surface of the rubber core body 201 is fixedly connected with a first anti-slip protrusion 206 , and the inner wall of the side surface of the rubber core body 201 is fixedly connected with a second anti-slip protrusion 208 .

[0024] Among them, a groove 203 is opened at the bottom of the rubber core body 201, and the side of the groove 203 is inclined. The internal pressure of the drilling well is relatively large, and the time pressure on the two sides of the groove 203 makes the two sides of the groove 203 tightly attached to the side inner wall of the shell 101 and the side of the drill pipe, thereby increasing the sealing performance.

[0025] Among them, the inside of the rubber core body 201 is fixedly connected with a detection tube 202, the top of the fixing ring 204 is provided with a transparent layer 205 at a position corresponding to the detection tube 202, and the top of the fixing cover 104 is provided with an observation hole 105 at a position corresponding to the transparent layer 205. The detection tubes 202 are evenly distributed inside the rubber core body 201. When the rubber core body 201 is worn during use, the detection tubes 202 are damaged, and the water sensing material or air sensing material inside the detection tube 202 is in contact with the outside world and changes color. The operator observes whether the detection tube 202 changes color through the observation hole 105 and the transparent layer 205 to determine whether the rubber core body 201 is damaged.

[0026] The inner wall of the side of the detection tube 202 is fixedly connected with a partition 207 , one side of the interior of the detection tube 202 is filled with a water sensing material, and one side of the interior of the detection tube 202 is filled with an air sensing material.

[0027] Among them, the side inner wall of the second anti-slip protrusion 208 and the side of the first anti-slip protrusion 206 are both inclined surfaces. The inclined surface of the side of the first anti-slip protrusion 206 facilitates the insertion of the rubber core body 201 into the shell 101, and the inclined surface of the side inner wall of the second anti-slip protrusion 208 facilitates the insertion of the drill rod into the rubber core body 201.

[0028] The working principle of the utility model is as follows: during the installation process, the rubber core body 201 is inserted into the shell 101, and the fixing cover 104 is covered on the top of the shell 101 and the fixing ring 204 is inserted into the slot 106. The two-way threaded bolt 102 passes through the upper through hole reserved on the rubber core body 201 and the fixing cover 104, and the fixing cover 104 is fixed by two fixing nuts 103 tightly attached to the top of the fixing cover 104. At the same time, the upper and lower fixing nuts 103 rotate in opposite directions. During use, the two fixing nuts 103 squeeze each other to prevent them from falling off. The blowout preventer mechanism 1 is installed on the drill during use. On the well, the drill pipe passes through the through hole on the rubber core body 201 and is tightly attached to the side inner wall of the rubber core body 201. The internal pressure of the drilling well is relatively high, and the time pressure on the two sides of the groove 203 makes the two sides of the groove 203 tightly attached to the side inner wall of the shell 101 and the side of the drill pipe, thereby increasing the sealing performance. When the rubber core body 201 is worn during use, the detection tube 202 is damaged, and the water sensing material or air sensing material inside the detection tube 202 is in contact with the outside world, causing discoloration. The operator observes whether the detection tube 202 changes color through the observation hole 105 and the transparent layer 205 to determine whether the rubber core body 201 is damaged.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rotary blowout preventer rubber core that is easy to install, comprising a rotary blowout preventer mechanism (1), characterized in that: Also includes: The invention relates to a rubber core mechanism (2), wherein the inner wall of the side surface of the rotary blowout preventer mechanism (1) is movably connected to the inner wall of the side surface of the rubber core mechanism (2), the rotary blowout preventer mechanism (1) comprises a shell (101), the rubber core mechanism (2) comprises a rubber core body (201), the side surface of the rubber core body (201) is movably connected to the inner wall of the side surface of the shell (101), the top end of the rubber core body (201) is fixedly connected to a fixing ring (204), the top end of the rubber core body (201) is fixedly connected to a fixing cover (104) through a bidirectional threaded bolt (102), the side surface of the bidirectional threaded bolt (102) is threadedly connected to a fixing nut (103), a slot (106) is provided on the inner wall of the top end of the fixing cover (104) at a position corresponding to the fixing ring (204), and the inner wall of the top end of the slot (106) is movably connected to the top end of the fixing ring (204).

2. The conveniently installed rotary blowout preventer rubber core according to claim 1 is characterized by: A first anti-slip protrusion (206) is fixedly connected to the side surface of the rubber core body (201), and a second anti-slip protrusion (208) is fixedly connected to the inner wall of the side surface of the rubber core body (201).

3. The conveniently installed rotary blowout preventer rubber core according to claim 1 is characterized by: A groove (203) is provided at the bottom end of the rubber core body (201), and the side surface of the groove (203) is an inclined surface.

4. The conveniently installed rotary blowout preventer rubber core according to claim 1 is characterized in that: A detection tube (202) is fixedly connected to the inside of the rubber core body (201), a transparent layer (205) is provided at the top of the fixing ring (204) corresponding to the position of the detection tube (202), and an observation hole (105) is provided at the top of the fixing cover (104) corresponding to the position of the transparent layer (205).

5. The conveniently installed rotary blowout preventer rubber core according to claim 4 is characterized by: A partition plate (207) is fixedly connected to the inner wall of the side of the detection tube (202), a water sensing material is installed on one side of the interior of the detection tube (202), and an air sensing material is installed on one side of the interior of the detection tube (202).

6. The conveniently installed rotary blowout preventer rubber core according to claim 2 is characterized by: The inner side wall of the second anti-slip protrusion (208) and the side surface of the first anti-slip protrusion (206) are both inclined surfaces.

Images