Double-layer heat-insulation high-adhesiveness petroleum casing pipe
By using curved sliders and spring structures in the oil casing to ensure adhesion and using glass fiber and rock wool materials to improve thermal insulation performance, the problems of reduced adhesion and insufficient thermal insulation performance of the oil casing are solved, and the improvement is achieved High adhesion and thermal insulation.
Patent Information
- Application Number
- CN202421107465.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-05-20
AI Technical Summary
During use, existing petroleum casings reduce adhesion due to material aging, which is prone to loosening, and lack of thermal insulation structure leads to heat loss and environmental pollution.
A double-layer thermally insulated, high adhesion petroleum casing is designed to ensure adhesion using curved sliders and spring structures, and combine glass fiber and rock wool materials to improve thermal insulation performance.
It effectively avoids loosening between the oil casing and the oil pipe, reduces heat loss and avoids environmental pollution, and improves the thermal insulation performance and corrosion resistance of the oil casing.
Smart Images
Figure CN222184686U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of petroleum casing, in particular to a double-layer heat-insulating high-adhesion petroleum casing. Background Art
[0002] At present, in oil field exploitation, oil casing is an important equipment for oil drilling, mainly used to support the well wall during drilling and after completion, so as to ensure the normal operation of the entire oil well during the drilling process and after completion. Oil casing is the lifeline to maintain the operation of the oil well. Due to different geological conditions, the stress state downhole is complex, and the tensile, compressive, bending and torsion stresses act on the pipe body, which puts higher requirements on the quality of the casing itself.
[0003] For example, a multifunctional oil casing with the authorization announcement number CN202954748U has a simple structure and reasonable design, which can not only ensure the connection strength and sealing performance, but also reduce heat loss and improve oil production efficiency. However, during the use of the oil casing in the above document, the oil casing and the oil pipe are connected by a sleeve connection. The casing is attached to the outer wall of the oil pipe through the elasticity of the inner wall material of the oil casing. Due to long-term use, the material inside the oil casing is prone to aging, resulting in reduced adhesion between the oil casing and the oil pipe, which makes it easy for the oil casing and the oil pipe to loosen, affecting the protection of the oil pipe;
[0004] Also, during the use of the oil casing in the above-mentioned document, due to the lack of thermal insulation structure on the outside of the oil casing in the above-mentioned document, the thermal insulation performance of the oil casing in the above-mentioned document is reduced, and the heat inside the oil pipeline is easily transferred to the external environment, which not only causes internal heat loss, but also causes pollution to the surrounding environment. Utility Model Content
[0005] The utility model aims to solve the XX problem and proposes a double-layer heat-insulating high-adhesion petroleum casing.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A double-layer heat-insulating high-adhesion petroleum casing is designed, including a petroleum casing and an arc-shaped slider. A plurality of slide grooves of the petroleum casing are respectively slidably connected to a plurality of arc-shaped sliders. An attachment structure is provided at the inner end of the arc-shaped slider. The attachment structure includes a circular ring. The outer wall of the circular ring is fixedly connected to the arc-shaped sliders on all sides. The rear end of the circular ring is rotatably connected to a plurality of connecting rods through a pin shaft. The inner end of the connecting rod is rotatably connected to a sliding rod through a pin shaft. The outer end of the sliding rod is fixedly connected to one end of a spring. The other end of the spring is fixedly connected to a sleeve rod. The inner end of the sliding rod is fixedly connected to a curved plate. The outer wall of the sliding rod is slidably connected to the sleeve rod.
[0008] Preferably, the inner ends of the plurality of arc-shaped plates are tightly pressed against the oil pipe.
[0009] Preferably, the outer walls of the sleeve rods are fixedly connected to the oil casing.
[0010] Preferably, the outer wall of the oil casing is provided with a heat insulation structure, and the heat insulation structure comprises a first heat insulation component, the inner wall of the first heat insulation component is bonded to the oil casing, and the outer wall of the first heat insulation component is bonded to the second heat insulation component.
[0011] Preferably, the two sides of the oil casing are respectively fitted with the protective covers on the two sides, the outer side of the protective cover is connected with the surrounding bolts by threads, and the inner sides of the outer walls of the plurality of bolts are connected with the oil casing by threads.
[0012] Preferably, the outer wall of the protective cover is provided with a heat insulation structure having the same structure as the petroleum casing.
[0013] The utility model provides a double-layer heat-insulating high-adhesion oil casing, which has the following beneficial effects: by turning the circular ring, the circular ring drives the arc block to move along the circumference of the slide groove of the oil casing, the circular ring drives the connecting rod to rotate, the connecting rod drives the sliding rod to move outward along the outer wall of the casing rod, and at the same time the sliding rod drives the spring to compress, the sliding rod drives the arc plate to move outward, and then the oil pipe is inserted into the inside of the oil casing and the oil pipe is placed between the arc plates, and then the circular ring is loosened, the elastic force of the spring drives the arc plate to move inward through the sliding rod, so that the arc plate and the oil pipe are tightly pressed against each other, at this time the spring is still in a compressed state, the elastic force of the spring always acts on the arc block to always press against the oil pipe, so that the arc block is always attached to the outer wall of the oil pipe, and the loosening between the oil casing and the oil pipe is avoided;
[0014] The material of the second thermal insulation component is glass fiber material, which has good insulation performance, strong heat resistance, good corrosion resistance, high mechanical strength and extremely high thermal insulation performance, thereby preventing the oil casing from being worn out by the external environment. The material of the first thermal insulation component is rock wool material, which has good thermal insulation performance and sound absorption and noise reduction performance. The heat of the oil pipe is blocked by the first thermal insulation component and the second thermal insulation component, while avoiding the noise during the flow of oil in the oil pipeline, increasing the thermal insulation performance of the oil casing, reducing the heat loss of the oil pipe and avoiding the pollution of the environment by heat. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the structure of the utility model;
[0016] Figure 2 This is a schematic diagram of the main structure of the utility model;
[0017] Figure 3 for Figure 2 A side view schematic diagram of the structure;
[0018] Figure 4 for Figure 3 The structural diagram of A in the figure;
[0019] Figure 5 for Figure 4 Schematic diagram of the rear view structure.
[0020] In the figure: 1. oil casing, 2. arc-shaped slider, 3. thermal insulation structure, 301. first thermal insulation component, 302. second thermal insulation component, 4. attachment structure, 4a1. circular ring, 4a2. connecting rod, 4a3. sliding rod, 4a4. spring, 4a5. sleeve rod, 4a6. arc-shaped plate, 4b1. protective pad, 5. protective cover, 6. bolt, 7. oil pipe. DETAILED DESCRIPTION
[0021] The utility model is further described below in conjunction with the accompanying drawings:
[0022] Embodiment 1:
[0023] See attached Figure 1-5 In the present embodiment, a double-layer heat-insulating high-adhesion oil casing comprises an oil casing 1 and an arc-shaped slider 2. A plurality of slide grooves of the oil casing 1 are respectively connected to a plurality of arc-shaped sliders 2 by sliding. An attachment structure 4 is arranged at the inner end of the arc-shaped slider 2. The attachment structure 4 comprises a circular ring 4a1. The outer wall of the circular ring 4a1 is fixedly connected to the arc-shaped sliders 2 on all sides. The rear end of the circular ring 4a1 is respectively connected to a plurality of connecting rods 4a2 by rotation through a pin. The inner end of the connecting rod 4a2 is connected to a sliding rod 4a3 by rotation through a pin. A plurality of circular holes are processed on the front side of the circular ring 4a1. The part is processed with threads, which is convenient for the staff to use the screw of corresponding size to connect with the ring 4a1, and then it is convenient to turn the ring 4a1, the ring 4a1 drives the arc block 2 to move along the circumference of the slide groove of the oil casing 1, the ring 4a1 drives the connecting rod 4a2 to rotate, the connecting rod 4a2 drives the sliding rod 4a3 to move outward along the outer wall of the sleeve rod 4a5, and at the same time the sliding rod 4a3 drives the spring 4a4 to be compressed, the sliding rod 4a3 drives the arc plate 4a6 to move outward, and then the oil pipe 7 is inserted into the interior of the oil casing 1 and the oil pipe 7 is placed between the arc plates 4a6;
[0024] Then, the ring 4a1 is loosened, and the elastic force of the spring 4a4 drives the arc plate 4a6 to move inward through the slide rod 4a3, so that the arc plate 4a6 is pressed against the oil pipe 7. At this time, the spring 4a4 is still in a compressed state, and the elastic force of the spring 4a4 always acts on the arc block 4a6 to always press against the oil pipe 7, so that the arc block is always attached to the outer wall of the oil pipe, avoiding looseness between the oil casing 1 and the oil pipe. The outer end of the slide rod 4a3 is fixedly connected to one end of the spring 4a4, and the other end of the spring 4a4 is fixedly connected to the sleeve rod 4a5. The inner end of the slide rod 4a3 is fixedly connected to the arc plate 4a6, and the outer wall of the slide rod 4a3 is slidably connected to the sleeve rod 4a5. The inner ends of multiple arc plates 4a6 are all pressed against the oil pipe 7, and the outer wall of the sleeve rod 4a5 is all fixedly connected to the oil casing 1.
[0025] The outer wall of the oil casing 1 is provided with an insulation structure 3, and the insulation structure 3 includes a first insulation component 301. The inner wall of the first insulation component 301 is bonded to the oil casing 1. The material of the second insulation component 302 is glass fiber material, which has good insulation performance, strong heat resistance, good corrosion resistance, high mechanical strength and extremely high insulation performance. The material of the first insulation component 301 is rock wool material, which has good insulation performance and sound absorption and noise reduction performance, avoiding the noise during the flow of oil in the oil pipeline. The outer wall of the first insulation component 301 is bonded to the second insulation component 302. The two sides of the oil casing 1 are respectively fitted with the protective covers 5 on both sides. The outer side of the protective cover 5 is threadedly connected with the bolts 6 around it, and the inner side of the outer wall of the multiple bolts 6 is threadedly connected to the oil casing 1. The outer wall of the protective cover 5 is provided with an insulation structure 3 with the same structure as the oil casing 1.
[0026] Working principle:
[0027] The front side of the circular ring 4a1 is processed with a plurality of circular holes, and the inside of the circular holes is processed with threads, so that the staff can use the screw of the corresponding size to connect with the circular ring 4a1, and then it is convenient to turn the circular ring 4a1, the circular ring 4a1 drives the arc block 2 to move along the circumference of the slide groove of the oil casing 1, the circular ring 4a1 drives the connecting rod 4a2 to rotate, the connecting rod 4a2 drives the sliding rod 4a3 to move outward along the outer wall of the sleeve rod 4a5, and at the same time the sliding rod 4a3 drives the spring 4a4 to be compressed, the sliding rod 4a3 drives the arc plate 4a6 to move outward, and then The oil pipe 7 is inserted into the oil casing 1 and placed between the arc plates 4a6. Then the ring 4a1 is loosened, and the elastic force of the spring 4a4 drives the arc plates 4a6 to move inward through the slide bar 4a3, so that the arc plates 4a6 and the oil pipe 7 are pressed tightly. At this time, the spring 4a4 is still in a compressed state. The elastic force of the spring 4a4 always acts on the arc block 4a6 to always press tightly against the oil pipe 7, so that the arc block is always attached to the outer wall of the oil pipe, thereby avoiding the loosening between the oil casing 1 and the oil pipe.
[0028] Then, the protective covers 5 on both sides are connected to the oil casing 1, and then the protective covers 5 are fixed to both sides of the oil casing 1 by bolts;
[0029] The material of the second thermal insulation component 302 is glass fiber material, which has good insulation performance, strong heat resistance, good corrosion resistance, high mechanical strength and extremely high thermal insulation performance, thereby preventing the oil casing 1 from being worn by the external environment. The material of the first thermal insulation component 301 is rock wool material, which has good thermal insulation performance and sound absorption and noise reduction performance. The heat of the oil pipe 7 is blocked by the first thermal insulation component and the second thermal insulation component, while avoiding the noise during the flow of oil in the oil pipeline, increasing the thermal insulation performance of the oil casing 1, reducing the heat loss of the oil pipe and avoiding the pollution of the environment by heat.
[0030] Embodiment 2:
[0031] See attached Figure 1-5 In the present embodiment, a double-layer heat-insulating high-adhesion oil casing is provided, wherein the attachment structure 4 may further include a protective pad 4b1, the outer end of the protective pad 4b1 is fixedly connected to the arc plate 4a6, and the inner ends of the plurality of protective pads 4b1 are tightly fitted to the oil pipe 7. The elasticity of the protective pad 4b1 itself increases the friction between the contact surfaces of the arc plate 4a6 and the oil pipe 7, thereby improving the adhesion effect between the oil casing 1 and the oil pipe 7.
[0032] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.
Claims
1. A double-layer heat-insulating high-adhesion petroleum casing, comprising a petroleum casing (1) and an arc-shaped slider (2), wherein a plurality of slide grooves of the petroleum casing (1) are respectively slidably connected to a plurality of arc-shaped sliders (2), Features: The inner end of the arc-shaped slider (2) is provided with an attachment structure (4), and the attachment structure (4) comprises a circular ring (4a1), the outer wall of the circular ring (4a1) is fixedly connected to the arc-shaped sliders (2) around it, the rear end of the circular ring (4a1) is rotationally connected to a plurality of connecting rods (4a2) via pins, the inner end of the connecting rod (4a2) is rotationally connected to a slide rod (4a3) via a pin, the outer end of the slide rod (4a3) is fixedly connected to one end of a spring (4a4), the other end of the spring (4a4) is fixedly connected to a sleeve rod (4a5), the inner end of the slide rod (4a3) is fixedly connected to an arc plate (4a6), and the outer wall of the slide rod (4a3) is slidably connected to the sleeve rod (4a5).
2. A double-layer heat-insulating high-adhesion petroleum casing according to claim 1, Features: The inner ends of the plurality of arc-shaped plates (4a6) are tightly abutted against the petroleum pipe (7).
3. A double-layer heat-insulating high-adhesion petroleum casing according to claim 1, Features: The outer walls of the sleeve rods (4a5) are fixedly connected to the oil casing (1).
4. A double-layer heat-insulating high-adhesion petroleum casing according to claim 1, Features: The outer wall of the oil casing (1) is provided with a heat insulation structure (3), and the heat insulation structure (3) comprises a first heat insulation component (301), the inner wall of the first heat insulation component (301) is bonded to the oil casing (1), and the outer wall of the first heat insulation component (301) is bonded to the second heat insulation component (302).
5. The double-layer heat-insulating high-adhesion petroleum casing according to claim 1, Features: The two sides of the oil casing (1) are respectively fitted with the protective covers (5) on the two sides, the outer side of the protective cover (5) is threadedly connected to the surrounding bolts (6), and the inner sides of the outer walls of the plurality of bolts (6) are threadedly connected to the oil casing (1).
6. A double-layer heat-insulating high-adhesion petroleum casing according to claim 5, Features: The outer wall of the protective cover (5) is provided with a heat insulation structure (3) having the same structure as the petroleum casing (1).