CN203640649U - Axial vibrator - Google Patents
Axial vibrator Download PDFInfo
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- CN203640649U CN203640649U CN201420000978.3U CN201420000978U CN203640649U CN 203640649 U CN203640649 U CN 203640649U CN 201420000978 U CN201420000978 U CN 201420000978U CN 203640649 U CN203640649 U CN 203640649U
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- urceolus
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Abstract
The utility model belongs to the field of drilling tools, and particularly relates to an axial vibrator. The axial vibrator comprises an upper connection center rod, an inner spline barrel, an outer barrel, a lower outer barrel and a lower joint, wherein a portion, which extends in the inner spline barrel, of the upper connection center rod is in threaded connection with the front end of the inner spline barrel; the rear end of the inner spline barrel is in threaded connection with the front end of the outer barrel; the rear end of the outer barrel is in threaded connection with the front end of the lower outer barrel; the rear end of the lower outer barrel is in threaded connection with the lower joint; the lower joint is a threaded crossover joint; the tail end of the upper connection center rod is in threaded connection with the front end of the lower joint of a center pipe; and a butterfly-shaped spring set sleeves a position between the upper connection center rod and the outer barrel, and is positioned at an outer-diameter shrunk position at the rear end of the upper connection center rod. Axial vibration is generated by using pressure pulse generated by a peripheral vibrator or a pulse generator. The problem of pressure dragging of drill strings of a large-inclination displacement well and a horizontal well is effectively solved. The axial vibrator is simple in structure and reliable in vibration. By changing the pulse generator, pressure fluctuation of mud is changed, the vibration power can be adjusted, and the axial vibrator is well-adapted.
Description
Technical field
The utility model belongs to drilling tool field, particularly a kind of axial vibration device.
Background technology
In directional well, horizontal well, extended reach well and branch well drilling well operations, because well track exists curvature or dog-leg degree, drill string part below curved portion forms and contacts (or backing) with the low limit of well, thereby causes effectively applying the pressure of the drill, forms backing pressure.Once there is backing pressure effect, will significantly reduce bit speed, form hidden danger, increase drillng operation risk.The solution of complex structural well drilling well backing pressure effect is the basic theory problem in world oil drilling well scientific domain.Current international drilling well field can be divided into alleviating the achievement in early stage aspect backing pressure effect study in drill string slide drilling: reduce drill string contact, reduce friction factor, method for oscillating discharges 4 kinds of methods such as frictional resistance and moment of torsion, enhancing borer system ability to work.And mechanical oscillation method is the promising reduction drill string of tool frictional resistance moment of torsion, alleviate backing pressure effect, increase the pressure of the drill transmit can and the research direction of extended distance.In domestic drilling market, there is no and adopt the domestic sizing drilling tool of mechanical oscillation method to go into operation.
Utility model content
In order to solve the mechanical oscillation drilling tool blank in field at home of alleviating backing pressure effect, the utility model provides a kind of axial vibration device, the axial mechanical oscillation of drill string can be provided, effectively discharge in directional well, horizontal well, extended reach well and branch well drilling well operations, because well track exists curvature or dog-leg degree, drill string part below curved portion forms with the low limit of well the backing pressure effect that contacts (or backing) and produce, and improves drilling well timeliness, reduces drilling well risk.
The utility model is achieved through the following technical solutions:
A kind of axial vibration device, comprise and connect center-pole, internal spline cylinder, urceolus, lower urceolus and lower contact, on connect the part that center-pole stretches into internal spline cylinder and be threaded with its front end, internal spline tube rear end is threaded with outer cylinder front end, outer tube rear end is threaded with lower outer cylinder front end, lower outside tube rear end is threaded with lower contact, and lower contact is thread conversioning joint; On connect center-pole tail end and be threaded with central tube lower contact front end; On connect between center-pole and urceolus also cover and have one group of butterfly spring group, butterfly spring group is positioned at the external diameter contraction place that connects center-pole rear end; Between lower urceolus and central tube lower contact, form plunger shaft, the external diameter contraction place cover of central tube lower contact rear end has piston, and the inwall laminating of piston and lower urceolus is slided.
Further, the lateral surface that above connects center-pole and internal spline cylinder junction is hexagon, and the medial surface of internal spline cylinder corresponding site is interior hexagon.
Further, above connect center-pole bottom locking nut is also installed, locking nut is between butterfly spring group tail end and central tube lower contact top.
Further, urceolus and on connect between center-pole also cover and have spacer, spacer is between internal spline cylinder tail end and butterfly spring group.
Axial vibration device in technique scheme also comprises seal, and the seal is separately positioned between two parts that contact.
The utility model can directly be connected in drill string and jointly use with rotational vibration device, and the pressure pulse that utilizes rotational vibration device to produce, impulses formation of sludge pressure oscillation, coordinates butterfly spring group of the present utility model and piston to produce axial vibration.Rotational vibration device produces radially (along circumferential 360 degree) vibration, and axial vibration device produces axial vibration, jointly forms a three-dimensional vibrating source, effectively solves the backing pressure problem of large gradient displacement well, drillstring in horizontal section, improves drilling well timeliness, reduces drilling well risk.A mud-pressure pulses generator also can be installed, use separately, form independently axial vibration source.The utility model is simple in structure, and vibration is reliable.By changing impulse generator, change the pressure oscillation of mud, can adjust to oscillation power strong adaptability.
The utility model utilization produces axial vibration., effectively drag pressure problem.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Wherein: 1: above connect center-pole; 2: internal spline cylinder; 3: urceolus; 4: spacer; 5: central tube lower contact; 6: piston; 7: split washer; 8: lower urceolus; 9: lower contact; 10: locking nut; 11: butterfly spring group.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further details:
As shown in Figure 1, the utility model provides a kind of axial vibration device, comprise and connect center-pole 1, internal spline cylinder 2, urceolus 3, lower urceolus 8 and lower contact 9, on connect the part that center-pole 1 stretches into internal spline cylinder 2 and be threaded with its front end, internal spline cylinder 2 rear ends are threaded with urceolus 3 front ends, urceolus 3 rear ends are threaded with lower urceolus 8 front ends, and lower urceolus 8 rear ends are threaded with lower contact 9, and lower contact 9 is thread conversioning joint; On connect center-pole 1 tail end and be threaded with central tube lower contact 5 front ends; On connect between center-pole 1 and urceolus 3 also cover and have one group of butterfly spring group 11, butterfly spring group 11 is positioned at the external diameter contraction place that connects center-pole 1 rear end; Between lower urceolus 8 and central tube lower contact 5, form plunger shaft, the external diameter contraction place cover of central tube lower contact 5 rear ends has piston 6, the circumferential recess of central tube lower contact 5 ends, rear end is embedded with split washer 7, with moving axially of the external diameter contraction place engagement limits piston 6 relative central tube lower contacts 5 of central tube lower contact 5 rear ends.Piston 6 slides with the inwall laminating of lower urceolus 8.
Under the pressure pulse effect that piston 6 produces at mud rotational vibration device or impulse generator, produce axially-movable.When pressure raises, piston 6 promotes central tube lower contact 5 and is moved to the left, compression butterfly spring group 11, spring for accumulating energy.Now the extreme position of piston 6 is the undergauge place of lower urceolus 8 inner sides.When pressure decreased, pressure that piston 6 bears reduces, butterfly spring group 11 release can, promote central tube lower contact 5 and piston 6 and move right, and then on driving, connect center-pole 1 and move right.The extreme position that connects center-pole 1 now meets the shoulder place on center-pole 1 top on being.So repeatedly, form axial vibration.
Rotational vibration device can produce radially (along circumferential 360 degree) vibration, and axial vibration device produces axial vibration, jointly forms a three-dimensional vibrating source, effectively solves the backing pressure problem of large gradient displacement well, drillstring in horizontal section, improves drilling well timeliness, reduces drilling well risk.
Mud-pressure pulses generator can be used alone, and forms independently axial vibration source.
On the basis of above-described embodiment, above connecing center-pole 1 is hexagon with the lateral surface of internal spline cylinder 2 junctions, and the medial surface of internal spline cylinder 2 corresponding sites is interior hexagon.Hexagon spline not only processing technology is good, and abundant transmitting torque.Certainly, also can adopt the structure for transmitting torque such as rectangular spline structure.
Meanwhile, above connect center-pole 1 bottom locking nut 10 is also installed, locking nut 10, between described butterfly spring group 11 tail ends and central tube lower contact 5 tops, can regulate the pretightning force of butterfly spring group 11 as required.
Urceolus 3 and on connect between center-pole 1 also cover and have spacer 4, spacer 4 is between internal spline cylinder 2 tail ends and butterfly spring group 11.Butterfly spring group 11 external diameters act on urceolus 3 by this spacer 4, can bear on the one hand the reaction force of butterfly spring group 11 while compressing, state locking nut 10 and coordinate the adjusting of carrying out butterfly spring group 11 pretightning forces; On the other hand urceolus 3 and the space that above connects between center-pole 1 are played to certain airtight effect.
Axial vibration device in technique scheme also comprises seal, the seal is separately positioned between two parts that contact, as between piston 6 and lower urceolus 8, between lower urceolus 8 and urceolus 3, between urceolus 3 and internal spline cylinder 2, internal spline cylinder 2 and on connect between center-pole 1 etc., ensure the seal that axial vibration device contacts between two parts.
The installation site of the utility model in drill string can be by special software set, is substantially to determine with experience separately in the practical application of drilling team.The drilling tool that different well types connects up and down may have difference, and great majority are connected with drilling rod up and down.In drillng operation, the optimal installation site of the utility model is the most serious place of backing pressure, as dog-leg place.In actual job, determine its particular location in drill string according to actual conditions such as horizontal section length, dog-leg curvatures.Rule of thumb generally be arranged on horizontal segment middle section position.
Claims (5)
1. axial vibration device, it is characterized in that, comprise and connect center-pole, internal spline cylinder, urceolus, lower urceolus and lower contact, on described, connecing the part that center-pole stretches into internal spline cylinder is threaded with its front end, described internal spline tube rear end is threaded with outer cylinder front end, described outer tube rear end is threaded with lower outer cylinder front end, and described lower outside tube rear end is threaded with lower contact, and described lower contact is thread conversioning joint; On described, connecing center-pole tail end is threaded with central tube lower contact front end; On described, connect between center-pole and urceolus and also overlap and have one group of butterfly spring group, described butterfly spring group is positioned at the external diameter contraction place that connects center-pole rear end; Between described lower urceolus and central tube lower contact, form plunger shaft, the external diameter contraction place cover of described central tube lower contact rear end has piston, and the inwall laminating of described piston and lower urceolus is slided.
2. axial vibration device according to claim 1, is characterized in that, the lateral surface that connects center-pole and internal spline cylinder junction on described is hexagon, and the medial surface of described internal spline cylinder corresponding site is interior hexagon.
3. axial vibration device according to claim 2, is characterized in that, connects center-pole bottom on described locking nut is also installed, and described locking nut is between described butterfly spring group tail end and central tube lower contact top.
4. axial vibration device according to claim 3, is characterized in that, described urceolus and on connect between center-pole also cover and have spacer, described spacer is between internal spline cylinder tail end and butterfly spring group.
5. according to the arbitrary described axial vibration device of claim 1-4, it is characterized in that, also comprise seal, described seal is separately positioned between two parts that contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420000978.3U CN203640649U (en) | 2014-01-02 | 2014-01-02 | Axial vibrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420000978.3U CN203640649U (en) | 2014-01-02 | 2014-01-02 | Axial vibrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203640649U true CN203640649U (en) | 2014-06-11 |
Family
ID=50871904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420000978.3U Expired - Fee Related CN203640649U (en) | 2014-01-02 | 2014-01-02 | Axial vibrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203640649U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742076A (en) * | 2014-01-02 | 2014-04-23 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Axial vibrator |
| CN105696969A (en) * | 2016-04-14 | 2016-06-22 | 东营万邦石油科技有限责任公司 | Pulse-mechanical-impacting-type well cementing vibrator |
| CN105696970A (en) * | 2016-04-14 | 2016-06-22 | 东营万邦石油科技有限责任公司 | Intermittent liquid flow impacting type well cementation vibrator |
-
2014
- 2014-01-02 CN CN201420000978.3U patent/CN203640649U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742076A (en) * | 2014-01-02 | 2014-04-23 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Axial vibrator |
| CN103742076B (en) * | 2014-01-02 | 2017-01-04 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | axial vibrator |
| CN105696969A (en) * | 2016-04-14 | 2016-06-22 | 东营万邦石油科技有限责任公司 | Pulse-mechanical-impacting-type well cementing vibrator |
| CN105696970A (en) * | 2016-04-14 | 2016-06-22 | 东营万邦石油科技有限责任公司 | Intermittent liquid flow impacting type well cementation vibrator |
| CN105696970B (en) * | 2016-04-14 | 2018-05-08 | 东营万邦石油科技有限责任公司 | Interval liquid flow impact formula well cementation vibrator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20210102 |