CN203383777U - Axial vibration impulse well cementing device - Google Patents
Axial vibration impulse well cementing device Download PDFInfo
- Publication number
- CN203383777U CN203383777U CN201320483424.9U CN201320483424U CN203383777U CN 203383777 U CN203383777 U CN 203383777U CN 201320483424 U CN201320483424 U CN 201320483424U CN 203383777 U CN203383777 U CN 203383777U
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- well cementing
- turbine rotor
- axial vibration
- axial
- impulse
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Abstract
The utility model discloses an axial vibration impulse well cementing device. The axial vibration impulse well cementing device is especially suitable for oil well cementing construction with the high well cementing quality requirement. The axial vibration impulse well cementing device is compose of a body (3.1) and a turbine rotor (3.3). An elastic impact hoop (3.4) is arranged on the upper portion of the turbine rotor (3.3). An eccentric throttle valve (3.2) is arranged on the lower portion of the turbine rotor (3.3). When well cementing concrete is filled into the ground, well cementing concrete slurry makes the turbine rotor (3.3) rotate, and the turbine rotor (3.3) drives the eccentric throttle valve (3.2) to rotate. When different rotating angles correspond to different open areas, different closure effects make the turbine rotor (3.3) axially move, and strong impact force is acted on the elastic impact hoop (3.4) on the top of the rotor to drive a casing string (4) to axially vibrate. The axial vibration impulse well cementing device can generate axial impulse vibration, the vibration distance can reach 500 meters, pressure in all well sections fluctuates in order, the replacement effect can be improved, and therefore the well cementing quality is improved.
Description
Technical field
The utility model relates to a kind of axial vibration pulse cementing unit, is specially adapted to the oil well cementing construction that cementing quality is had relatively high expectations.
Background technology
The benefit of vibration cementing: 1. vibration frequency is when 150～200Hz, and the intensity of Behavior of Hardened Cement Paste can improve 15%; 2. under the oscillator field effect of 50Hz, drilling fluid viscosity reduces by 20～30%, and on sleeve pipe, residual drilling fluid reduces 50%, also helps and removes borehole wall filter cake; 3. can greatly reduce the cement paste gel strength, make cement paste keep head of liquid, be conducive to prevent the intrusion of formation fluid, avoid altering groove; 4. increase the bonding quality at interface.At present, a kind of vibration cementing method of the field, be to drive the tubing string vibration by ground vibration device vibration-generating, although can realize full well section vibration, device, complex process; Another kind method is the radial vibration device that adopts a kind of eccentric hammer, cement paste by the time produce eccentric vibrating, characteristics are radial disbalance vibrations, oscillation distances is short, effect is limited.
Summary of the invention
The utility model provides a kind of axial vibration pulse cementing unit, and its equipment is simple, can produce axial vibration, increases oscillation distances, improves the cementing quality of full well section.
The utility model is achieved in that it is comprised of body, turbine rotor, be provided with an elastic impact hoop on turbine rotor top, be provided with an eccentric choke valve in the turbine rotor bottom, local when injecting cementing concrete, cementing slurry rotates turbine rotor, turbine rotor drives eccentric choke valve and rotates, when the different angles of the rotating area of passage different with regard to correspondence, the different effects of damming makes the axial play of turbine rotor, on huge impact force action rotor top elastic impact hoop, drive tubing string axial vibration.During use, at first according to well bore characteristics and cementing requirements, adjust the choke valve of down-hole axial vibration pulse cementing unit and the parameter of elastic impact hoop, then by axial vibration pulse cementing unit, float shoe together with float collar, with arriving the design well depth under casing string, after putting in place, by normal procedure, cement the well, under the effect of axial vibration pulse cementing unit, casing string produces axial vibration, when reaching design, cement returns when high, the bruising plug is in the top bruising of axial vibration pulse cementing unit, and Hou Ning, complete cementing operation.Under the effect of axial vibration pulse cementing unit, the tubing string oscillation distances reaches 500 meters, also makes whole well cementation produce the pulse feature variation of pressure and the flow velocity of full well section simultaneously, thereby improves cementing quality.
The utility model can produce axial impulse oscillation, and oscillation distances can reach greatly 500 meters; Full well section pressure fluctuates in order, can improve the replacement effect, thereby it is high to improve cementing quality; The utility model is simple in structure, and process implementing is convenient, safe and reliable.
The accompanying drawing explanation
Fig. 1 is the utility model structure principle chart.
Fig. 2 is the utility model well cementation fundamental diagram.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail: it is by body (3.1), turbine rotor (3.3) forms, be provided with an elastic impact hoop (3.4) on turbine rotor (3.3) top, be provided with an eccentric choke valve (3.2) in turbine rotor (3.3) bottom, local when injecting cementing concrete, cementing slurry rotates turbine rotor (3.3), turbine rotor (3.3) drives eccentric choke valve (3.2) and rotates, when the different angles of the rotating area of passage different with regard to correspondence, the different effects of damming makes turbine rotor (3.2) axial float, huge impact force action is on rotor top elastic impact hoop (3.4), drive casing string (4) axial vibration.During use, at first according to well bore characteristics and cementing requirements, adjust the choke valve of down-hole axial vibration pulse cementing unit (3) and the parameter of elastic impact hoop, then by axial vibration pulse cementing unit (3), float shoe (1) and float collar (2) are lower to the design well depth with casing string (4) together, after putting in place, by normal procedure, cement the well, under the effect of axial vibration pulse cementing unit (3), casing string (4) produces axial vibration, its operating principle is: cementing slurry rotates the turbine rotor (3.3) of axial vibration pulse cementing unit (3), driving eccentric choke valve (3.2) rotates, the area of passage that the different angles that eccentric choke valve (3.2) rotates are corresponding different, the different effects of damming makes turbine rotor (3.3) axial float, huge impact force action is on turbine rotor top elastic impact hoop (3.4), drive casing string (4) axial vibration, when reaching design, cement returns when high, the bruising plug is in axial vibration pulse cementing unit (3) top bruising, Hou Ning, complete cementing operation.Under axial vibration pulse cementing unit (3) effect, casing string (4) oscillation distances reaches 500 meters, also makes whole well cementation produce the pulse feature variation of pressure and the flow velocity of full well section simultaneously, thereby improves cementing quality.
Claims (1)
1. an axial vibration pulse cementing unit, it is comprised of body (3.1), turbine rotor (3.3), it is characterized in that being provided with elastic impact hoop (3.4) on turbine rotor (3.3) top, in turbine rotor (3.3) bottom, be provided with an eccentric choke valve (3.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320483424.9U CN203383777U (en) | 2013-08-09 | 2013-08-09 | Axial vibration impulse well cementing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320483424.9U CN203383777U (en) | 2013-08-09 | 2013-08-09 | Axial vibration impulse well cementing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203383777U true CN203383777U (en) | 2014-01-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320483424.9U Expired - Lifetime CN203383777U (en) | 2013-08-09 | 2013-08-09 | Axial vibration impulse well cementing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203383777U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234651A (en) * | 2014-09-23 | 2014-12-24 | 杰瑞能源服务有限公司 | High-temperature resistant vibration tool for horizontal well |
| CN104343412A (en) * | 2013-08-09 | 2015-02-11 | 胜利油田胜机石油装备有限公司 | Axial vibratory impulse well cementation method and device |
| CN106555566A (en) * | 2016-12-07 | 2017-04-05 | 中国石油集团西部钻探工程有限公司 | Frangible stratum or the cementing method on broken stratum |
-
2013
- 2013-08-09 CN CN201320483424.9U patent/CN203383777U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343412A (en) * | 2013-08-09 | 2015-02-11 | 胜利油田胜机石油装备有限公司 | Axial vibratory impulse well cementation method and device |
| CN104234651A (en) * | 2014-09-23 | 2014-12-24 | 杰瑞能源服务有限公司 | High-temperature resistant vibration tool for horizontal well |
| CN106555566A (en) * | 2016-12-07 | 2017-04-05 | 中国石油集团西部钻探工程有限公司 | Frangible stratum or the cementing method on broken stratum |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140108 |
|
| CX01 | Expiry of patent term |