Gravity delivery blanking plug in oil pipe
By designing the gravity casting blocker in the oil pipe, the combined structure of the reset mandrel and the glue barrel is used to achieve a firm sealing of the oil pipe under the action of gravity, the problem of lax sealing and flying blocking of the oil pipe blocker in harsh environments is solved, and the stability and safety of the blocker are improved.
Patent Information
- Application Number
- CN202422498457.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-10-15
AI Technical Summary
The existing oil pipe blocker is not securely sealed in harsh environments, which can easily lead to lax sealing and safety hazards of flying blocking. It is affected by the residual sand particles in the pipe, and the sealing function is unstable.
A gravity casting blocker in the oil pipe is designed, and a combined structure of the reset mandrel, glue barrel, energy storage spring and reset screw is used to compress the energy storage spring to generate thrust by rotating the reset screw to make the glue barrel expand and tightly fit the inner wall of the oil pipe. The tail vertebrae is used to achieve power source sealing under the action of gravity to avoid the influence of sand particles.
It realizes the reliable and stable sealing of the oil pipe blocker, enhances the pressure bearing capacity, avoids lax sealing and safety hazards of flying blocking, saves energy and improves the blocking effect.
Smart Images
Figure CN223269953U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of plugs, in particular to a gravity-delivered plug in an oil pipe. Background Art
[0002] At present, during most of the pressurized operations in oil fields, the plug is not sealed tightly due to residual oil and water in the pipe string, or the plug is not sealed firmly, resulting in plugging failure and accompanied by the safety hazard of flying plugs, which increases the workload of the construction team, delays the construction period, and is accompanied by major safety hazards.
[0003] The existing oil pipe plugger is not reliably sealed in harsh environments, which can easily lead to loose sealing of the oil pipe and the risk of flying plugging. At the same time, the existing oil pipe plugger is easily affected by residual sand particles in the pipe and affects the sealing function of the oil pipe plugger, making the sealing of the oil pipe plugger no longer reliable. Therefore, a gravity-delivered plugger is needed in the oil pipe to solve the above problems. Utility Model Content
[0004] The purpose of the present invention is to provide a gravity-delivered plug in an oil pipe to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a gravity-delivered plugger in an oil pipe, comprising a tail vertebral body and a reset sleeve, the bottom thread of the tail vertebral body is connected to a reset core shaft, the surface of the reset core shaft is fixedly connected to a rubber barrel, the bottom of the rubber barrel is clamped with an adjusting short circuit, the bottom thread of the adjusting short circuit is connected to a cava seat, the surface of the reset core shaft is fixedly connected to a slider cava, the internal thread of the slider cava is connected to a connecting short circuit, the surface of the connecting short circuit is fixedly connected to a supporting sleeve, the surface of the reset core shaft is sleeved with an energy storage spring, the interior of the reset sleeve is rotatably connected to a reset screw, the inner wall of the support sleeve is threadedly connected to a pressure cover, the surface of the reset screw is rotatably connected to a pressure bearing, and a safety pin is inserted into the interior of the reset core shaft and the adjusting short circuit.
[0006] By setting up the above structure, the energy storage spring can be compressed under the action of the rotation of the reset screw, causing it to generate a huge upward thrust to open the rubber barrel, which in turn causes the rubber barrel to expand and fit tightly against the inner wall of the oil pipe, thereby realizing the plugging function of the oil pipe. The fit between the rubber barrel and the inner wall of the oil pipe can make the sealing of the oil pipe plugger more secure and stable, and have a stronger pressure-bearing capacity, thereby avoiding the problem of loose blockage of the oil pipe and the safety hazard of flying blockage.
[0007] As a preferred solution, the glue barrel is fixedly connected to the reset core shaft, and the adjustment short circuit is fixedly connected to the reset core shaft.
[0008] As a preferred solution, the slip seat is fixedly connected to the reset core shaft, and the slider slip is located outside the slip seat.
[0009] As a preferred solution, the connecting short circuit is fixedly connected to the reset core shaft, and the reset core shaft passes through the glue barrel, the adjusting short circuit, the slip seat and the connecting short circuit.
[0010] As a preferred solution, the reset mandrel is located inside the supporting sleeve.
[0011] As a preferred solution, one end of the energy storage spring is fixedly connected to the bottom of the short circuit, and the reset sleeve is located inside the supporting sleeve.
[0012] As a preferred solution, the other end of the energy storage spring is fixedly connected to the top of the reset screw, and the surface of the pressure bearing is fixedly connected to the inner wall of the support sleeve.
[0013] By setting up the tail vertebra, the tail vertebra will drop under the action of gravity, without the need for an additional power source, which can save energy and cost. In addition, the use of gravity will not be affected by residual sand particles in the oil pipe, making the sealing of the oil pipe plug more reliable and stable, and the safety pin shaft is more likely to be sheared, thereby making the plugging effect of the oil pipe plug better.
[0014] Compared with the prior art, the beneficial effects of the present invention are:
[0015] The utility model provides a reset core shaft, a rubber barrel, an energy storage spring, a reset sleeve and a reset screw. Under the rotation of the reset screw, the energy storage spring can be compressed, so that it generates a huge upward thrust to open the rubber barrel, and then the rubber barrel will expand and fit tightly against the inner wall of the oil pipe, thereby realizing the plugging function of the oil pipe. The fit between the rubber barrel and the inner wall of the oil pipe can make the sealing of the oil pipe plugger more secure and stable, and have a stronger pressure-bearing capacity, thereby avoiding the problem of loose blockage of the oil pipe and the safety hazard of flying blockage.
[0016] The utility model provides a tail vertebral body, which will drop under the action of gravity, without the need for an additional power source, thus saving energy and cost. The use of gravity will not be affected by residual sand particles in the oil pipe, so that the sealing of the oil pipe plugger can be more reliable and stable, and the safety pin shaft is more likely to be sheared, thereby making the plugging effect of the oil pipe plugger better. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the structure of the utility model in a frontal perspective;
[0018] Figure 2 It is a schematic diagram of the internal structure of the utility model;
[0019] Figure 3 This is a schematic diagram of the structure of the utility model in front cross-section.
[0020] In the figure: 1. Tail vertebra; 2. Reset core shaft; 3. Rubber barrel; 4. Adjustment short circuit; 5. Slip seat; 6. Slider slip; 7. Connecting short circuit; 8. Support sleeve; 9. Energy storage spring; 10. Reset sleeve; 11. Reset screw; 12. Pressure cover; 13. Pressure bearing; 14. Safety pin. DETAILED DESCRIPTION
[0021] The present invention will be further described below with reference to the embodiments.
[0022] The following examples are intended to illustrate the present invention and are not intended to limit the scope of protection of the present invention. The conditions in the examples may be further adjusted according to specific conditions. Simple improvements to the method of the present invention based on the concept of the present invention fall within the scope of protection claimed by the present invention.
[0023] See also Figure 1-3 The utility model provides a gravity-feed plugger in an oil pipe, comprising a tail vertebral body 1 and a reset sleeve 10. The bottom thread of the tail vertebral body 1 is connected to a reset core shaft 2, the surface of the reset core shaft 2 is fixedly connected to a rubber barrel 3, the bottom of the rubber barrel 3 is clamped with an adjusting short circuit 4, the bottom thread of the adjusting short circuit 4 is connected to a slip seat 5, the surface of the reset core shaft 2 is fixedly connected to a slider slip 6, the internal thread of the slider slip 6 is connected to a connecting short circuit 7, the surface of the connecting short circuit 7 is fixedly connected to a supporting sleeve 8, the surface of the reset core shaft 2 is sleeved with an energy storage spring 9, the internal rotation of the reset sleeve 10 is connected to a reset screw 11, the inner wall thread of the support sleeve 8 is connected to a pressure cover 12, and the reset The surface of the screw 11 is rotatably connected to a pressure bearing 13, and a safety pin 14 is inserted into the interior of the reset core shaft 2 and the adjustment short circuit 4. By arranging the reset core shaft 2, the rubber barrel 3, the energy storage spring 9, the reset sleeve 10 and the reset screw 11, the energy storage spring 9 can be compressed under the rotation of the reset screw 11, so that it can generate a huge upward thrust to open the rubber barrel 3, and then the rubber barrel 3 will expand and fit tightly with the inner wall of the oil pipe, thereby realizing the plugging function of the oil pipe. The fit between the rubber barrel 3 and the inner wall of the oil pipe can make the oil pipe plugger more secure and stable, and have a stronger pressure-bearing capacity, thereby avoiding the problem of loose blockage of the oil pipe and the safety hazard of flying blockage.
[0024] The glue barrel 3 is fixedly connected to the reset core shaft 2 , and the adjusting short circuit 4 is fixedly connected to the reset core shaft 2 .
[0025] The slip seat 5 is fixedly connected to the reset core shaft 2 , and the slider slip 6 is located outside the slip seat 5 .
[0026] The connecting short circuit 7 is fixedly connected to the reset core shaft 2 , and the reset core shaft 2 passes through the rubber barrel 3 , the adjusting short circuit 4 , the slip seat 5 and the connecting short circuit 7 .
[0027] The reset spindle 2 is located inside the supporting sleeve 8 .
[0028] One end of the energy storage spring 9 is fixedly connected to the bottom of the connecting short circuit 7 , and the reset sleeve 10 is located inside the supporting sleeve 8 .
[0029] The other end of the energy storage spring 9 is fixedly connected to the top of the reset screw 11, and the surface of the pressure bearing 13 is fixedly connected to the inner wall of the support sleeve 8. By setting the tail vertebra 1, the tail vertebra 1 will drop under the action of gravity, without the need for an additional power source, which can save energy and cost, and the use of gravity can be unaffected by the residual sand in the oil pipe, so that the sealing of the oil pipe plugger can be more reliable and stable, and the safety pin shaft 14 is more likely to be sheared, thereby making the plugging effect of the oil pipe plugger better.
[0030] After the safety pin 14 is sheared, the energy storage spring 9 will be released, thereby pushing the reset core shaft 2 and the tail cone 1 to move upward, thereby achieving the expansion of the rubber barrel 3 and making the oil pipe reach a sealed state.
[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A gravity-delivered plug in an oil pipe, comprising a tail cone (1) and a reset sleeve (10), characterized in that: The bottom thread of the tail vertebra (1) is connected to a reset core shaft (2), the surface of the reset core shaft (2) is fixedly connected to a rubber barrel (3), the bottom of the rubber barrel (3) is clamped with an adjusting short circuit (4), the bottom thread of the adjusting short circuit (4) is connected to a cava seat (5), the surface of the reset core shaft (2) is fixedly connected to a slider cava (6), the internal thread of the slider cava (6) is connected to a connecting short circuit (7), the surface of the connecting short circuit (7) is fixedly connected to a supporting sleeve (8), the surface of the reset core shaft (2) is sleeved with an energy storage spring (9), the interior of the reset sleeve (10) is rotatably connected to a reset screw (11), the inner wall of the supporting sleeve (8) is threadedly connected to a pressure cover (12), the surface of the reset screw (11) is rotatably connected to a pressure bearing (13), and a safety pin shaft (14) is inserted into the interior of the reset core shaft (2) and the adjusting short circuit (4).
2. The gravity-fed plug in the oil pipe according to claim 1, characterized in that: The glue barrel (3) is fixedly connected to the reset core shaft (2), and the adjustment short circuit (4) is fixedly connected to the reset core shaft (2).
3. The gravity-fed plug in the oil pipe according to claim 1, characterized in that: The slip seat (5) is fixedly connected to the reset core shaft (2), and the slider slip (6) is located outside the slip seat (5).
4. The gravity-fed plug in the oil pipe according to claim 1, characterized in that: The connecting short circuit (7) is fixedly connected to the reset core shaft (2), and the reset core shaft (2) passes through the rubber barrel (3), the adjustment short circuit (4), the slip seat (5) and the connecting short circuit (7).
5. The gravity-fed plug in the oil pipe according to claim 4, characterized in that: The reset core shaft (2) is located inside the supporting sleeve (8).
6. The gravity-fed plug in the oil pipe according to claim 1, characterized in that: One end of the energy storage spring (9) is fixedly connected to the bottom of the connecting short circuit (7), and the reset sleeve (10) is located inside the supporting sleeve (8).
7. The gravity-fed plug in the oil pipe according to claim 6, characterized in that: The other end of the energy storage spring (9) is fixedly connected to the top of the reset screw (11), and the surface of the pressure bearing (13) is fixedly connected to the inner wall of the support sleeve (8).