CN220081383U - Ash discharging device for petroleum well cementation operation - Google Patents
Ash discharging device for petroleum well cementation operation Download PDFInfo
- Publication number
- CN220081383U CN220081383U CN202321014274.7U CN202321014274U CN220081383U CN 220081383 U CN220081383 U CN 220081383U CN 202321014274 U CN202321014274 U CN 202321014274U CN 220081383 U CN220081383 U CN 220081383U
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- ash discharging
- valve
- ash
- cover
- rotating
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- 238000007599 discharging Methods 0.000 title claims abstract description 62
- 239000003208 petroleum Substances 0.000 title claims abstract description 18
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 239000003129 oil well Substances 0.000 claims description 3
- 239000004568 cement Substances 0.000 description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000002002 slurry Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Sliding Valves (AREA)
Abstract
The utility model provides an ash discharging device for petroleum well cementation operation, which comprises an ash discharging valve, wherein a channel is formed in the ash discharging valve, an ash inlet is formed in the side face of the ash discharging valve, a valve core is arranged in the channel, the valve core comprises a valve core rotating shaft, an upper rotating cover, a lower rotating cover and a plurality of rotating blades, the valve core rotating shaft is fixedly connected with the upper rotating cover, the lower rotating cover is fixedly connected with the ash discharging valve, the upper rotating cover is fixedly connected with the rotating blades, the rotating blades are in sliding fit with the lower rotating cover, and the upper rotating cover is in rotating fit with the lower rotating cover. According to the utility model, the valve core is arranged in the channel, the valve core rotating shaft of the valve core is fixedly connected with the upper rotating cover, the lower rotating cover is fixedly connected with the ash discharging valve, the upper rotating cover is fixedly connected with the rotating blade, the rotating blade is in sliding connection with the lower rotating cover, the valve core rotating shaft can be rotated, the rotating blade is driven to slide on the lower rotating cover, and the size of the notch can be adjusted, so that the ash discharging amount of the ash discharging valve is adjusted.
Description
Technical Field
The utility model relates to the technical field of well cementation slurry mixing devices of oil and gas fields, in particular to an ash discharging device for petroleum well cementation operation.
Background
The current society gradually expands along with the development and exploration of petroleum and natural gas, and the number of modes of various deep wells and ultra-deep wells increases year by year. As the technology in the drilling field is continuously developed, the improvement of the well cementation technology is correspondingly promoted. After drilling, the casing is put into the well bore to a certain depth, and then the well wall and the annular space in the casing are added with cement for sealing, which is called cementing.
The cement paste which is required by the petroleum well cementation operation and meets the density of the site working condition is formed by mixing dry cement ash and water in a certain proportion, the fixed batch mixing mode is low in efficiency and high in waste, the fixed batch mixing mode is gradually replaced by a continuous mixing mode, the continuous mixing mode is to monitor the density of the cement paste in real time, and the quantity of the dry cement ash is controlled according to the set density and water flow of the cement paste, so that the continuous mixing of the cement paste is carried out, and the follow-up and follow-up matching of the cement paste is realized; in the existing device, when the cement slurry density and water flow fluctuation occur, the corresponding action of the ash discharging valve for controlling dry cement ash is not sensitive enough, the phenomenon of blocking the inner mechanism of the ash discharging valve can be caused, meanwhile, when the lower gray level of the ash discharging valve is not uniform enough, the density of cement slurry and various performances of the ash discharging valve can be influenced, the valve core of the existing mechanism mostly comprises a valve cover and an arc plate which are connected with each other, the arc plate is used for being inserted into a pipeline in the valve body, the valve cover can seal an opening of a middle pipeline, finally, the valve core rotates around the axis of the middle pipeline, and the size of an ash inlet is regulated by matching with the arc plate.
Therefore, the utility model provides an ash discharging device for petroleum well cementation operation.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to provide an ash discharging device for petroleum well cementation operation, so as to solve the problems in the prior art.
In order to achieve the above object, the present utility model is realized by the following technical scheme: the utility model provides an ash discharging device for oil well cementation operation, includes ash discharging valve, the passageway has been seted up in the ash discharging valve, ash inlet has been seted up to ash discharging valve side, is equipped with the case in the passageway, the case includes case rotation axis, goes up rotatory lid, rotatory lid and a plurality of rotating vane down, and case rotation axis and last rotatory lid fixed connection down rotatory lid and ash discharging valve fixed connection, go up rotatory lid and rotating vane fixed connection down, rotating vane and rotatory lid sliding fit down, go up rotatory lid and rotatory lid normal running fit down.
Further, the valve core rotating shaft, the upper rotating cover, the lower rotating cover, the rotating blades and the lower ash valve are coaxial.
Further, a notch is formed in the lower rotary cover and is in sliding fit with the rotary blade.
Further, screws are arranged between the upper rotary cover and the rotary blade and between the upper rotary cover and the rotary valve core rotary shaft, and the upper rotary cover is fixedly connected with the rotary blade and the rotary valve core rotary shaft through the screws.
Further, a pressure regulating valve is arranged on the side face of the ash discharging valve.
Further, a union joint is arranged at the bottom of the ash discharging valve.
Further, the valve core is positioned at the lower side of the ash inlet in the ash discharging valve or in the ash inlet.
The utility model has the beneficial effects that: the utility model relates to an ash discharging device for petroleum well cementation operation, which comprises an ash discharging valve; a channel; a valve core; a valve core rotating shaft; an upper rotary cover; a lower rotary cover; an ash discharging valve; rotating the blades; notch.
Install the case in the passageway, with the case rotation axis and last rotatory lid fixed connection of case, rotatory lid and ash valve fixed connection down, go up rotatory lid and rotary vane fixed connection, rotary vane and rotatory lid sliding connection down can rotate the case rotation axis, thereby drive rotary vane and cover down and slide, can adjust the size of notch, thereby adjust the what of ash valve ash volume down, improve the control sensitivity of ash volume down, can also clear away debris on rotary vane at rotary vane gliding in-process simultaneously, reduce the wearing and tearing degree of ash valve down, prevent that rotary vane card from dying.
Drawings
FIG. 1 is a schematic diagram of an assembled perspective view of the whole ash discharging device for petroleum well cementation operation;
FIG. 2 is a schematic diagram of the whole assembly cross-section structure of the ash discharging device for petroleum well cementation operation;
FIG. 3 is a schematic diagram of an assembled perspective structure of a valve core in a cement discharging device for petroleum well cementation operation;
FIG. 4 is a schematic diagram of an assembled three-dimensional structure of an upper rotary cover and a lower rotary cover in a lower ash discharging device for petroleum well cementation operation;
in the figure: 1. an ash discharging valve; 2. a channel; 3. a valve core; 31. a valve core rotating shaft; 32. a screw; 33. an upper rotary cover; 34. a lower rotary cover; 35. rotating the blades; 36. a notch; 4. an ash inlet; 5. union joints; 6. and a pressure regulating valve.
Detailed Description
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
Referring to fig. 1 to 4, the present utility model provides a technical solution: the utility model provides an ash discharging device for oil well cementation operation, includes ash discharging valve 1, ash discharging valve 1 is interior to have seted up passageway 2, and ash inlet 4 has been seted up to ash discharging valve 1 side, is equipped with case 3 in the passageway 2, and case 3 includes case rotation axis 31, upper rotating cover 33, lower rotating cover 34 and a plurality of rotating vane 35, and case rotation axis 31 and upper rotating cover 33 fixed connection, lower rotating cover 34 and ash discharging valve 1 fixed connection, upper rotating cover 33 and rotating vane 35 fixed connection, rotating vane 35 and lower rotating cover 34 sliding fit, upper rotating cover 33 and lower rotating cover 34 normal running fit.
In this embodiment, the spool rotation shaft 31, the upper rotation cover 33, the lower rotation cover 34, the rotary vane 35 and the lower ash valve 1 are coaxial, the lower rotation cover 34 is provided with a notch 36, the notch 36 is in sliding fit with the rotary vane 35, screws 32 are respectively arranged between the upper rotation cover 33 and the rotary vane 35 and between the upper rotation cover 33 and the rotary vane 31, the upper rotation cover 33 and the rotary vane 35 are fixedly connected with the spool rotation shaft 31 through the screws 32, the pressure regulating valve 6 is arranged on the side face of the lower ash valve 1, the union joint 5 is arranged at the bottom of the lower ash valve 1, the spool 3 is positioned at the lower side of the ash inlet 4 in the lower ash valve 1, the upper side of the spool rotation shaft 31 is provided with a control component, the control component is fixedly connected with the lower ash valve 1, the control component comprises a control chip, a density sensor and a motor, the output end of the motor is fixedly connected with the spool rotation shaft 31, the control chip is connected with the density sensor and the motor through wires, and the density sensor is used for monitoring the density and the clean water amount of cement slurry in real time.
In particular, the rotary vane 35 in the ash discharging valve 1 adopts a rotary structure, so that the rotary vane 35 can be ensured to slide smoothly in the notch 36, the ash discharging valve 1 can sensitively execute ash discharging action, blocking is prevented from occurring during ash discharging, meanwhile, the pressure regulating valve 6 is used for controlling the air pressure difference between the inside and the outside of the ash discharging valve 1, the rotating quantity of the valve core rotating shaft 31 can be better controlled, and the union joint 5 is combined with a follow-up high-energy mixer for stirring cement.
Specifically, when the cement slurry density and the clear water amount fluctuate, the ash discharging amount of the ash discharging valve 1 is changed to match the clear water amount, so that the required cement density can be produced.
When the monitored cement paste density is higher than the cement paste density required by the on-site working condition, the control chip controls the output end of the motor to rotate anticlockwise, so that the output end of the motor drives the valve core rotating shaft 31 to rotate anticlockwise, the valve core rotating shaft 31 rotates through the upper rotating cover 33, the upper rotating cover 33 pushes the rotating blades 35 to slide, the notch 36 is controlled to reduce the opening degree, the ash discharging amount of dry cement is reduced, and the cement paste density is reduced.
When the cement paste density is monitored to be lower than the cement paste density required by the on-site working condition, the control chip controls the output end of the motor to rotate clockwise, so that the output end of the motor drives the valve core rotating shaft 31 to rotate clockwise, the valve core rotating shaft 31 rotates through the upper rotating cover 33, the upper rotating cover 33 pulls the rotating blades 35 to slide, the opening of the notch 36 is controlled to be increased, the ash discharging amount of dry cement is increased, and the density of the cement paste is reduced.
When the operation is finished, the valve core rotating shaft 31 rotates counterclockwise and reversely, and the opening degree is reduced, so that the supply of cement ash is gradually stopped, and the rotating angle of the valve core rotating shaft 31 in the whole process is not more than 270 degrees.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
1. The utility model provides an ash discharging device for oil well cementation operation, includes ash discharging valve (1), its characterized in that, ash discharging valve (1) is interior to have seted up passageway (2), ash inlet (4) have been seted up to ash discharging valve (1) side down, be equipped with case (3) in passageway (2), case (3) are including case rotation axis (31), go up rotatory lid (33), rotatory lid (34) and a plurality of rotary vane (35) down, and case rotation axis (31) and last rotatory lid (33) fixed connection, rotatory lid (34) and ash discharging valve (1) fixed connection down, go up rotatory lid (33) and rotary vane (35) fixed connection, rotary vane (35) and rotatory lid (34) sliding fit down, go up rotatory lid (33) and rotatory lid (34) normal running fit down.
2. The ash discharging device for petroleum well cementation operation according to claim 1, wherein: the valve core rotating shaft (31), the upper rotating cover (33), the lower rotating cover (34), the rotating blades (35) and the ash discharging valve (1) are coaxial.
3. The ash discharging device for petroleum well cementation operation according to claim 1, wherein: the lower rotary cover (34) is provided with a notch (36), and the notch (36) is in sliding fit with the rotary blade (35).
4. The ash discharging device for petroleum well cementation operation according to claim 1, wherein: screws (32) are respectively arranged between the upper rotary cover (33) and the rotary blade (35) and between the upper rotary cover (33) and the valve core rotary shaft (31), and the upper rotary cover (33) is fixedly connected with the rotary blade (35) and the valve core rotary shaft (31) through the screws (32).
5. The ash discharging device for petroleum well cementation operation according to claim 1, wherein: the side face of the ash discharging valve (1) is provided with a pressure regulating valve (6).
6. The ash discharging device for petroleum well cementation operation according to claim 1, wherein: a union joint (5) is arranged at the bottom of the ash discharging valve (1).
7. The ash discharging device for petroleum well cementation operation according to claim 1, wherein: the valve core (3) is positioned at the lower side of the ash inlet (4) in the ash discharging valve (1) or in the ash inlet (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321014274.7U CN220081383U (en) | 2023-04-28 | 2023-04-28 | Ash discharging device for petroleum well cementation operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321014274.7U CN220081383U (en) | 2023-04-28 | 2023-04-28 | Ash discharging device for petroleum well cementation operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220081383U true CN220081383U (en) | 2023-11-24 |
Family
ID=88830358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321014274.7U Active CN220081383U (en) | 2023-04-28 | 2023-04-28 | Ash discharging device for petroleum well cementation operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220081383U (en) |
-
2023
- 2023-04-28 CN CN202321014274.7U patent/CN220081383U/en active Active
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