CN119641237B - Electric underground pushing device - Google Patents
Electric underground pushing deviceInfo
- Publication number
- CN119641237B CN119641237B CN202311202835.0A CN202311202835A CN119641237B CN 119641237 B CN119641237 B CN 119641237B CN 202311202835 A CN202311202835 A CN 202311202835A CN 119641237 B CN119641237 B CN 119641237B
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- electroactive
- combined block
- electric
- outer cylinder
- pushing
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Abstract
The invention relates to the technical field of underground pushing devices, in particular to an electric underground pushing device which comprises an outer cylinder, a rotating shaft and an electroactive combined block, wherein the outer side of the rotating shaft is sleeved with the outer cylinder, at least two mounting holes which are internally and externally communicated are uniformly distributed in the middle of the outer cylinder along the circumference, and each mounting hole is internally provided with the electroactive combined block which can retract or expand when being powered on and powered off. The invention has reasonable and compact structure and convenient use, solves the working condition adaptation problems of ultrahigh temperature, high vibration and the like of the hydraulic pushing device by arranging the pushing force device of the pure electric type electroactive combined block without hydraulic pressure, can be applied to tools such as static pushing vertical drilling, rotary guiding and the like, adapts to the requirements of deep well ultra-deep well inclination prevention and guiding drilling, and has the characteristics of no temperature limitation, no influence of vibration, stable output force, few parts and release of the compression-resistant design size of a mechanical structure.
Description
Technical Field
The invention relates to the technical field of underground pushing devices, in particular to an electric underground pushing device.
Background
With the development of deep well and ultra-deep well drilling technology, the downhole conditions such as downhole temperature, pressure, stratum and the like are increasingly complex. The temperature reaches above 200 ℃, the pressure exceeds 200MPa, the pressure is influenced by stratum compaction, the vibration in the drilling process is more severe, and new technical requirements are put forward for vertical drilling tools. Current vertical drilling tools are mainly of the fully rotary and stationary push-on type. Because the static pushing device adopts a hydraulic pushing device, the static pushing device is seriously affected by temperature and the like. The static pushing device works underground, and pressure is generated by three hydraulic pushing devices, so that the inclination prevention is realized. The pushing device does not rotate during drilling, and the central shaft rotates. The underground pushing force device is used as a vertical drilling tool to generate underground pushing force, and realizes underground closed-loop anti-tilting and other important working parts, and the working performance of the underground pushing force device plays an important role in whether the anti-tilting function of the vertical drilling tool is effectively exerted. At present, the downhole pushing force output of the static pushing type vertical drilling tool is realized by controlling the micro pump to work through the micro motor to generate hydraulic pressure based on the small hole throttling or electromagnetic valve control principle by using the downhole pushing force device. However, due to the fact that the underground temperature is increased, the hydraulic oil is affected by high temperature to change performances such as viscosity, and the problem of temperature attenuation occurs when the hydraulic system pushes against stable output of force. And along with the aggravation of underground pressure, vibration and the like, the mechanical structure of the pushing device cannot meet the field requirements in terms of pressure resistance and abrasion resistance.
Disclosure of Invention
The invention provides an electric underground pushing device, which overcomes the defects of the prior art and can effectively solve the problem that the existing hydraulic pushing system is affected by underground high temperature and the pushing force is attenuated.
The technical scheme is that the electric underground pushing device comprises an outer cylinder, a rotating shaft and an electroactive combined block, wherein the outer cylinder is sleeved outside the rotating shaft, at least two mounting holes which are internally and externally communicated are uniformly distributed in the middle of the outer cylinder along the circumference, and each mounting hole is internally provided with the electroactive combined block which can retract or expand by switching on and off electric energy.
The following are further optimizations and/or improvements to the above-described inventive solution:
the electroactive combined block can be made of electroactive materials and is formed by longitudinally stacking whole electroactive materials layer by layer, and two ends of the electroactive combined block are respectively connected with the positive electrode and the negative electrode of a power supply.
The electric control device comprises an outer barrel, an electric control module, a sealing rubber sleeve, a high-voltage sealing contact pin, a high-voltage sealing rubber sleeve, a high-voltage sealing contact pin, a measuring and controlling circuit and a control circuit.
The electronic bin also comprises sealing rings, and the sealing rings are arranged between the outer side of the upper part of the electronic bin and the outer side of the lower part of the electronic bin and the outer cylinder.
The electronic bin can also comprise a ground wire screw, the electronic bin is internally provided with the ground wire screw, and the control circuit is connected with the ground wire screw.
The electric activity combined block comprises an electric activity combined block, wherein the electric activity combined block comprises an electric activity combined block, and is characterized in that the electric activity combined block comprises a supporting plate and a fixed block, wherein the outer side of each electric activity combined block is provided with the supporting plate, the supporting plate is in a U shape with an inward opening, the upper end and the lower end of the inner side of the supporting plate are respectively integrally provided with an upper sliding table and a lower sliding table, the inner side of an outer cylinder corresponding to the position of the upper sliding table is provided with a sliding groove, the upper sliding table is positioned in the sliding groove, the outer cylinder corresponding to the lower end of the mounting hole is provided with the fixed block through a bolt, and the lower sliding table is positioned in the fixed block.
The invention has reasonable and compact structure and convenient use, solves the working condition adaptation problems of ultrahigh temperature, high vibration and the like of the hydraulic pushing device by arranging the pushing force device of the pure electric type electroactive combined block without hydraulic pressure, can be applied to tools such as static pushing vertical drilling, rotary guiding and the like, adapts to the requirements of deep well ultra-deep well inclination prevention and guiding drilling, and has the characteristics of no temperature limitation, no influence of vibration, stable output force, few parts and release of the compression-resistant design size of a mechanical structure.
Drawings
Fig. 1 is a schematic diagram of a front view and a half cross-section structure according to an embodiment of the present invention.
FIG. 2 is a schematic cross-sectional view of the structure at A-A in FIG. 1.
Fig. 3 is a schematic cross-sectional view of the structure at B-B in fig. 1.
The coding in the drawing is respectively 1 an outer cylinder, 2a rotating shaft, 3 an electroactive combined block, 4 an electronic bin, 5 a measurement and control circuit, 6 a sealing rubber sleeve, 7a high-pressure sealing contact pin, 8a sealing ring, 9 a ground wire screw, 10 a leaning plate, 11a fixed block, 12 an upper sliding table, 13 a lower sliding table, 14 a sliding chute and 15 a bolt.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments can be determined according to the technical scheme and practical situations of the present invention.
In the present invention, for convenience of description, the description of the relative positional relationship of each component is described according to the layout form of fig. 1 of the specification, for example, the positional relationship of front, rear, upper, lower, left, right, etc. is determined according to the layout direction of the drawing of the specification.
The invention is further described below with reference to examples and figures:
Embodiment 1 As shown in figures 1, 2 and 3, the electric underground pushing device comprises an outer cylinder 1, a rotating shaft 2 and an electroactive combined block 3, wherein the outer side of the rotating shaft 2 is sleeved with the outer cylinder 1, at least two mounting holes which are internally and externally communicated are uniformly distributed in the middle of the outer cylinder 1 along the circumference, and each mounting hole is internally provided with the electroactive combined block 3 which can retract or expand when being connected and disconnected with electric energy.
The electroactive composite block 3 is made of a conventional known material, and can be deformed by on-off electric energy, so that the electroactive composite block can be used as an actuating mechanism.
According to the requirement, the middle part of the outer cylinder 1 is uniformly distributed with three mounting holes which are internally and externally communicated along the circumference.
When the electric activity combined block 3 is used, the electric activity combined block 3 is retracted or expanded through power on and power off, the electric activity combined block 3 is retracted when a well is lowered, when the well is required to be righted, the three groups of electric activity combined blocks 3 are expanded to prop against the well wall, the pipe string moves to a position with small stress, the outer cylinder 1 is pushed to center, and therefore the position of a drill bit below a rotating shaft is adjusted, and well inclination is prevented. The invention adopts a new material to be applied to the pushing device, realizes the pushing force generated by the deformation of the electroactive combined block 3 by means of electric control, fundamentally solves the problem of damping of the pushing force caused by the influence of high temperature on a hydraulic system, is not influenced by temperature, vibration and the like, and can completely adapt to the high-temperature and high-vibration environment of ultra-deep well drilling. Meanwhile, as the installation components are reduced, the installation space is saved, and the ultrahigh pressure problem faced by the mechanical structure design is solved.
The electric underground pushing device can be further optimized or/and improved according to actual needs:
Example 2 As shown in figures 1 and 2, the electroactive combined block 3 is made of electroactive materials and is formed by longitudinally stacking whole pieces of electroactive materials layer by layer, and two ends of the electroactive combined block 3 are respectively connected with the positive electrode and the negative electrode of a power supply. When the vertical drilling tool is used, the positive electrode and the negative electrode attract each other after the electric active material is electrified to cause the stacked electric active material to be compressed, and the stacked electric active material is restored to the original state after the electric active material is powered off, so that the stacked electric active material is expanded outwards, and when the vertical drilling tool is required to be ensured to be in the central position in a well, the electric active material is powered off, and when the pushing force is not required, the electric active material is electrified to retract.
Embodiment 3 as shown in figures 1 and 2, the electric control device further comprises an electronic bin 4, the electronic bin 4 positioned in the outer cylinder 1 is sleeved on the outer side of the upper portion of the rotating shaft 2, a measurement and control circuit 5 is arranged in the electronic bin 4, the measurement and control circuit 5 comprises an inclinometry sensor and a control circuit, the inclinometry sensor is connected with the control circuit, the tail ends of wires at two ends of the electroactive combination block 3 are connected with a sealing rubber sleeve 6, and the control circuit is inserted into the sealing rubber sleeve 6 through a high-voltage sealing contact pin 7 and connected with the electroactive combination block 3.
When the electric activity combined block 3 is used, the inclination condition of the pipe string is monitored through the inclination measuring sensor, and when the control system judges that the monitoring data of the inclination measuring sensor exceeds a specified value, the electric activity combined block 3 is controlled to be powered off and expanded so as to push the outer cylinder 1 to be centered.
Embodiment 4, as shown in figures 1 and 2, further comprises a sealing ring 8, and the sealing rings 8 are arranged between the outer side of the upper part of the electronic bin 4, the outer side of the lower part of the electronic bin and the outer cylinder 1.
The underground impurities are prevented from entering the electronic bin 4 by the sealing ring 8.
Embodiment 5 as shown in fig. 1 and 2, the electronic bin further comprises a ground wire screw 9, the ground wire screw 9 is arranged in the electronic bin 4, and the control circuit is connected with the ground wire screw 9.
The ground screw 9 ensures the safety and normal operation of the device.
Embodiment 6 as shown in fig. 1,2 and 3, the electric activity combined block 3 further comprises a leaning plate 10 and a fixed block 11, wherein the outer side of each electric activity combined block 3 is provided with the leaning plate 10, the leaning plate 10 is U-shaped with an inward opening, the upper end and the lower end of the inner side of the leaning plate 10 are respectively and integrally provided with an upper sliding table 12 and a lower sliding table 13, the inner side of the outer cylinder 1 corresponding to the position of the upper sliding table 12 is provided with a sliding groove 14, the upper sliding table 12 is positioned in the sliding groove 14, the fixed block 11 is arranged on the outer cylinder 1 corresponding to the lower end position of the mounting hole through a bolt 15, and the lower sliding table 13 is positioned in the fixed block 11.
The backup plate 10 has the function of avoiding abrasion caused by contact between the electroactive combined block 3 and the well wall, the backup plate 10 can be pushed by the electroactive combined block 3 to expand outwards, and when the backup plate 10 moves outwards, the upper sliding table 12 moves outwards along the sliding groove 14, and the lower sliding table 13 moves outwards along the fixed block 11.
The technical characteristics form the embodiment of the invention, have stronger adaptability and implementation effect, and can increase or decrease unnecessary technical characteristics according to actual needs so as to meet the requirements of different situations.
Claims (3)
1. The electric underground pushing device is characterized by comprising an outer cylinder, a rotating shaft and an electroactive combined block, wherein the outer cylinder is sleeved outside the rotating shaft, at least two mounting holes which are internally and externally communicated are uniformly distributed in the middle of the outer cylinder along the circumference, and each mounting hole is internally provided with the electroactive combined block for retracting or expanding on-off electric energy;
the electroactive combined block is made of electroactive materials and is formed by longitudinally stacking whole electroactive materials layer by layer, and two ends of the electroactive combined block are respectively connected with the positive electrode and the negative electrode of a power supply;
The device comprises an outer barrel, an electric active combined block, a sealing rubber sleeve, a high-voltage sealing contact pin, a measuring and controlling circuit, a sealing rubber sleeve, a high-voltage sealing contact pin, a sealing rubber sleeve and a control circuit, wherein the outer side of the upper part of the rotating shaft is sleeved with the electric bin which is positioned in the outer barrel;
still include pushing plate and fixed block, every electroactive combined block outside all is equipped with pushing plate, and pushing plate is the U font of opening inwards, and the inboard upper end of pushing plate and inboard lower extreme are integrative respectively to be equipped with slip table and lower slip table, and the urceolus inboard that corresponds the slip table position is equipped with the spout, goes up the slip table and is located the spout, installs the fixed block through the bolt on the urceolus that corresponds mounting hole lower extreme position, and lower slip table is located the fixed block.
2. The electric downhole pushing device of claim 1, further comprising sealing rings, wherein the sealing rings are arranged between the outer side of the upper part of the electronic bin and the outer side of the lower part of the electronic bin and the outer cylinder.
3. The electric downhole pushing device according to claim 1 or 2, further comprising a ground screw, wherein the electronic compartment is provided with the ground screw, and the control circuit is connected with the ground screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311202835.0A CN119641237B (en) | 2023-09-18 | 2023-09-18 | Electric underground pushing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311202835.0A CN119641237B (en) | 2023-09-18 | 2023-09-18 | Electric underground pushing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN119641237A CN119641237A (en) | 2025-03-18 |
| CN119641237B true CN119641237B (en) | 2025-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311202835.0A Active CN119641237B (en) | 2023-09-18 | 2023-09-18 | Electric underground pushing device |
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| CN (1) | CN119641237B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113863881A (en) * | 2021-10-25 | 2021-12-31 | 杭州瑞利声电技术有限公司 | Logging instrument pushing device capable of being automatically folded |
| CN114287067A (en) * | 2019-08-30 | 2022-04-05 | 脸谱科技有限责任公司 | A structured actuator: shaped electroactive polymers |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4068013B2 (en) * | 2003-06-06 | 2008-03-26 | 曙ブレーキ工業株式会社 | Electric brake device |
| CN100342114C (en) * | 2005-03-18 | 2007-10-10 | 中国海洋石油总公司 | Single arm clamp piston of petroleum exploration device |
| JP2007127086A (en) * | 2005-11-04 | 2007-05-24 | Terumo Corp | Pump |
| GB2450498A (en) * | 2007-06-26 | 2008-12-31 | Schlumberger Holdings | Battery powered rotary steerable drilling system |
| CN202578676U (en) * | 2011-10-12 | 2012-12-05 | 李群 | A small-diameter backup device for a cased well logging instrument |
| DE102019126176A1 (en) * | 2019-09-27 | 2021-04-01 | Airbus Operations Gmbh | Brake with electroactive polymer |
| CN111270992B (en) * | 2020-02-13 | 2020-10-27 | 中国石油天然气集团有限公司 | Guide unit for static pushing type rotary guide tool |
| CN113324574A (en) * | 2021-05-27 | 2021-08-31 | 南宁展佳机械技术有限公司 | A environmental information gathers detection device for agricultural science and technology |
| CN114233194B (en) * | 2021-12-02 | 2023-02-28 | 中煤科工集团西安研究院有限公司 | Coal mine underground split type hydraulic deflecting drilling tool combination and drilling method |
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2023
- 2023-09-18 CN CN202311202835.0A patent/CN119641237B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114287067A (en) * | 2019-08-30 | 2022-04-05 | 脸谱科技有限责任公司 | A structured actuator: shaped electroactive polymers |
| CN113863881A (en) * | 2021-10-25 | 2021-12-31 | 杭州瑞利声电技术有限公司 | Logging instrument pushing device capable of being automatically folded |
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| CN119641237A (en) | 2025-03-18 |
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