CN105134081A - Vibration generation tool for drilling well - Google Patents
Vibration generation tool for drilling well Download PDFInfo
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- CN105134081A CN105134081A CN201410253798.0A CN201410253798A CN105134081A CN 105134081 A CN105134081 A CN 105134081A CN 201410253798 A CN201410253798 A CN 201410253798A CN 105134081 A CN105134081 A CN 105134081A
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- urceolus
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- drilling
- vibration
- generating tool
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Abstract
The invention discloses a vibration generation tool for drilling wells. The vibration generation tool comprises, sequentially connected, an outer cylinder, a breathing outer cylinder and a disk spring outer cylinder, each having a hollow cavity, wherein a disk spring assembly is arranged in the disk spring outer cylinder, passes through the outer cylinder and the breathing outer cylinder, and extends to a vibration mandrel in the hollow core of the disk spring outer cylinder. A block member is arranged between the vibration mandrel and the inner wall of the breathing outer cylinder, restricts the reciprocating stroke of the vibration mandrel and prevents disengagement of the vibration mandrel and other parts of the tool. Tools falling into a well can be effectively prevented. A sealing chamber jointly limited by the vibration mandrel, the breathing outer cylinder, the disk spring outer cylinder and a driving piston is filled with hydraulic oil, and the service lifetime of the sealing member and disk spring assembly is prolonged.
Description
Technical field
The present invention relates to a kind of vibration generating tool, particularly a kind of Drilling vibration generating tool.
Background technology
In extended reach well, horizontal well drilling, because hole angle is large, the overwhelming majority of large well lower curved section drill string deadweight presses to the borehole wall, so meeting frictional resistance that tubing string is met is larger between tubing string and well.Cause dragging pressure, moment of torsion increases, and the pressure of the drill being delivered to drill bit is discontinuous or limited, makes only to rely on straight well section drilling tool weight to be difficult to send to, and tool-face is difficult to control, bore and reach that horizontal section length is limited and rate of penetration is lower.Domestic and international more to the research and development of relevant antifriction tool in the research of extended reach well, horizontal well drilling in recent years, Main way is in down-hole string, introduce the frictional resistance vibrating and reduce between tubing string and the borehole wall, and achieves good result of use at the scene.Underground vibrating antifriction tool utilizes fluid to produce vibration by certain mode, vibration is introduced in tubing string, and tubing string when utilizing vibration can make slipping drilling and the static friction factor of the borehole wall are reduced to dynamic friction factor size.Like this, greatly can reduce the frictional resistance of tubing string, reach to increase to be delivered to available weight on drill bit, to improve rate of penetration and to extend tubing string and enter the objects such as well location moves.
Such as, document Chang Qingqi district gas storage Y37-2H well long horizontal sections drilling technology [J]. gas industry .2012 (06) discloses the hydroscillator (Agitator) of U.S. NOV (NationalOilwellVarco) company research and development, and also discloses a kind of drilling well hydroscillator in patent document CN202689935U.Their operating principle is substantially identical, and all includes the vibration generating mechanism utilizing hydraulic impulse to produce drillstring vibrations.In addition, disclosed in patent document CN201031620, a kind of pulse displacement shocks generator is also a kind of vibration generating mechanism similar with aforementioned vibration generating mechanism.But above-mentioned involved drillstring vibrations generating mechanism all needs spring compartment to communicate with drilling well annular space, that is in use procedure, spring compartment must be full of drilling fluid, and this can reduce the life-span sealed between spring and movable part, affects the whole service life of instrument.In addition, this vibration generating mechanism, also there are no the special drop preventing mechanism of design, also to have between mutual movement parts once throw off existing drilling tool and to fall the risk of well.
Summary of the invention
The present invention aims to provide a kind of Drilling vibration generating tool, and it can control the vibratility adjustment vibrating axle effectively, and prevents the disengaging between mutual movement parts, ensures drilling tool safety.In addition, also can be extended the life-span of instrument overall work by the present invention, ensure that it is safe and reliable.
In order to realize foregoing invention object, the invention provides a kind of Drilling vibration generating tool, comprise be connected successively and have separately hollow cavity urceolus, breathe urceolus and disc spring urceolus, dished spring assembly is provided with in disc spring urceolus, penetrate described urceolus and breathe urceolus and the vibration axle extended in the hollow cavity of described disc spring urceolus, driven plunger is connected with at the free end be in disc spring urceolus of described vibration axle, wherein, block piece is set between described vibration axle and the inwall of described breathing urceolus.
By arranging the position of block piece in vibration axle, the reciprocating stroke of vibration axle can be limited.Meanwhile, block piece can also prevent vibration axle from throwing off with instrument other parts in reciprocating process, and the instrument of efficiently avoid falls well accident.
In some embodiments, the distance between described block piece and the link of urceolus is set to the vibratility adjustment equaling to vibrate axle.Set the vibratility adjustment of vibration axle by the relative position of adjustment block piece in vibration axle, this kind of Drilling vibration tool applications can be made like this in the drilling well demand of different well.
In some embodiments, described block piece comprises two circumferences and relatively binds round the half-watt in described vibration axle.Like this, can prevent vibration axle from throwing off with Drilling vibration instrument other parts in reciprocating process, the instrument of efficiently avoid falls well accident.
In some embodiments, between described vibration axle and the inwall of described breathing urceolus, be also provided with floating piston, and described breathing urceolus is provided with and is formed in the spiracle of the chamber between described block piece and described floating piston.Under the acting in conjunction of spiracle, floating piston and the second chamber, the fluid pressure of Drilling vibration generating tool outside can be transmitted to the upper surface of driven plunger, make the upper and lower both ends of the surface of driven plunger produce pressure differential, thus the drilling assembly connected for this Drilling vibration generating tool bottom provide power.
In some embodiments, described vibration axle and urceolus by spline joint, and are also formed with the first chamber in spline joint region.Because the contact area connected in spline joint is comparatively large, thus can transmit larger torque, the centering precision of spline joint is higher simultaneously, can make the reciprocal relative movement flexibility and reliability more between vibration axle and urceolus.
In some embodiments, described vibration axle, breathing urceolus, disc spring urceolus and driven plunger collectively define the second airtight chamber, in described second chamber, be filled with hydraulic oil.A good sealed environment can be provided for dished spring assembly and seal like this, thus extend the life-span of dished spring assembly and seal, and then improve life-span and the security reliability of instrument overall work.
In some embodiments, the volume variable quantity of described first chamber is equal with the volume variable quantity of described second chamber.Because the volume variable quantity of the first chamber is equal with the volume variable quantity of the second chamber, and the volume change of chamber changes in the opposite direction with the volume of the second chamber, the liquid sucking each other and breathe out can be made so mutually to compensate, thus realize breathing in drilling process urceolus inside and outside drilling fluid and exchanged by the micrometeor of spiracle or zero delivery, avoid the erosion to spiracle, improve use safety and the life-span of instrument.
In some embodiments, the volume variable quantity of described first chamber and the second chamber is set to the volume change equaling described dished spring assembly.Because driven plunger drives during dished spring assembly motion, the volume in the first chamber and the second chamber is changed, and the change of described volume produces by the change of dished spring assembly volume, therefore need to design the volume variable quantity that the volume change of dished spring assembly equals in the first chamber and the second chamber, thus realize Drilling vibration tool interior and outside micrometeor or zero delivery further and exchange.
In some embodiments, described dished spring assembly is positioned at the second chamber, and the performance parameter of described dished spring assembly and preload size adjustable.In use according to on-the-spot actual condition adjustment driven plunger and the relative position of vibration axle, with this, performance parameter of dished spring assembly and pre-load size can be set like this.
In some embodiments, the two ends up and down of described floating piston are also provided with sealing ring.Make the upper and lower two ends of floating piston can not produce the phenomenon of leakage or gas leakage like this, thus improve the efficiency of pistons work.
Accompanying drawing explanation
Also will be described in more detail the present invention with reference to accompanying drawing based on embodiment hereinafter.
Fig. 1 is the sectional view of Drilling vibration generating tool.
In the accompanying drawings, identical parts use identical Reference numeral.Accompanying drawing is not according to the ratio of reality.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
Details described here is exemplary, and is only used for carrying out illustrative discussion to embodiments of the invention, and their existence is to provide the most useful and the most intelligible description be considered to principle of the present invention and concept aspect.About this point, here do not attempt introduction CONSTRUCTED SPECIFICATION of the present invention being exceeded to basic comprehension degree required for the present invention, those skilled in the art can be expressly understood by manual and accompanying drawing thereof and implement several form of the present invention how in practice.
Fig. 1 shows the sectional view according to Drilling vibration generating tool 100 of the present invention.As shown in the figure, this Drilling vibration generating tool 100 comprise be connected successively and have separately hollow cavity urceolus 3, breathe urceolus 4 and disc spring urceolus 9.Urceolus 3 with breathing urceolus 4, breathes between urceolus 4 and disc spring urceolus 9 and is connected respectively by screw thread, its syndeton is simple and reliable, mounting or dismounting facilitate.This Drilling vibration generating tool 100 also has and penetrates described urceolus 3 and breathe urceolus 4 and the vibration axle 1 extended in the hollow cavity of described disc spring urceolus 9.Driven plunger 12 is connected with at the free end be in disc spring urceolus 9 of described vibration axle 1.
According to the present invention, block piece 5 is set between described vibration axle 1 and the inwall of described breathing urceolus 4.By arranging the position of block piece 5 in vibration axle 1, the reciprocating stroke of vibration axle 1 just can be limited easily.Meanwhile, block piece 5 can also prevent vibration axle 1 from throwing off with instrument other parts in reciprocating process, and the instrument of efficiently avoid falls well accident.In a preferred embodiment, the distance between described block piece 5 and the link of urceolus 3 such as can be set to the vibratility adjustment equaling to vibrate axle 1.
In a preferred embodiment, described block piece 5 comprises two circumferences and relatively binds round the half-watt in described vibration axle 1.Before the use, set the vibratility adjustment of vibration axle 1 by the relative position of adjustment block piece 5 in vibration axle 1, this kind of Drilling vibration instrument 100 can be made like this to be applied in the drilling well demand of different well.After setting described vibratility adjustment, block piece 5 is fixed in vibration axle 1, when can prevent Drilling vibration generating tool 100 from working like this, vibrates the disengagement of axle 1 and instrument other parts, avoid instrument to fall the generation of well accident.In addition, the material of the half-watt of block piece 5 can be selected to have corrosion-resistant impact-resistant material and make, and can improve the life-span that it uses.
In embodiment as shown in Figure 1, between described vibration axle 1 and the inwall of described breathing urceolus 4, be also provided with floating piston 7.In this case, described breathing urceolus 4 is provided with and is formed in the spiracle C of the chamber between described block piece 5 and described floating piston 7.During drilling well, under the acting in conjunction of spiracle C, floating piston 7 and the second chamber B, the fluid pressure of Drilling vibration generating tool 100 outside can be transmitted to the upper surface of driven plunger 12, make driven plunger about 12 both ends of the surface produce pressure differential, thus for this Drilling vibration generating tool 100 bottom connect drilling assembly power is provided.In addition, in disc spring urceolus 9, dished spring assembly 10 is also provided with.When the periodic pressure impulse action from outside is in driven plunger 12, disc spring group 10 just can be driven periodically to stretch by the change of inside and outside hydraulic pressure, and then drive the axial vibration of vibration axle 1.
In the embodiment shown in fig. 1, vibrate axle 1 to be connected preferably by spline with urceolus 3.In spline joint region, be formed with the first chamber A, and seal the cylindrical fit face on spline joint top by sealing ring 2.Owing to having more polyhedral cooperation in spline joint, the contact area making it connect is comparatively large, thus can transmit larger torque.Meanwhile, the centering precision of spline joint is higher, therefore can make the reciprocal relative movement flexibility and reliability more between vibration axle 1 and urceolus 3, avoid other connecting mode, the problem that the reciprocating motion resistance brought as Flat dey joint is large.
In embodiment as shown in drawings, collectively define the second airtight chamber B by vibration axle 1, breathing urceolus 4, disc spring urceolus 9 and driven plunger 12.Preferably, hydraulic oil is filled with in described second chamber B, its objective is as disc spring group 10 and seal 11 provide a good sealed environment, thus extend the life-span of dished spring assembly 10 and seal 11, and then improve life-span and the security reliability of instrument overall work.
Preferably, the volume variable quantity of described first chamber A is equal with the volume variable quantity of described second chamber B.By the structure of optimal design splined section and the structure of driven plunger 12, the volume variable quantity of the first chamber A can be made equal with the volume variable quantity of the second chamber B.Because the volume change of chamber A changes in the opposite direction with the volume of the second chamber B, the liquid sucking each other and breathe out can be made so mutually to compensate, thus realize breathing in drilling process urceolus 4 inside and outside drilling fluid and exchanged by the micrometeor of spiracle C or zero delivery, avoid the erosion to spiracle C, improve use safety and the life-span of instrument.
In addition, in the second described chamber B, be also provided with dished spring assembly 10, and the performance parameter of described dished spring assembly 10 and preload size adjustable.Driven plunger 12 is threaded connection with vibration axle 1 and carries out prestrain to dished spring assembly 10, can according to the relative position of on-the-spot actual condition adjustment driven plunger 12 with vibration axle 1 during use, the performance parameter of disc spring group 10 and pre-load size are set.
Preferably, the volume variable quantity of described first chamber A and the second chamber B is set to the volume change equaling described dished spring assembly 10.Change owing to making the volume in the first chamber A and the second chamber B when driven plunger 12 drives dished spring assembly 10 to move, and the change of described volume produces by the change of dished spring assembly 10 volume, therefore need to design the volume variable quantity that the volume change of dished spring assembly 10 equals in the first chamber A and the second chamber B, thus realize the inside and outside micrometeor of Drilling vibration instrument 100 further or zero delivery exchanges.
In embodiment as shown in the figure, be also provided with sealing ring 6 and sealing ring 8 at the two ends up and down of described floating piston 7.Because in the first chamber A and the second chamber B, the change of gas is all transmitted by floating piston 7, and need the volumetric change in guarantee first chamber A and the second chamber B equal, therefore just higher to the sealing requirements of floating piston 7, at floating piston about 7 two ends, sealing ring 6 and sealing ring 8 are set, floating piston about 7 two ends can be made can not to produce the phenomenon of leakage or gas leakage, thus improve the efficiency of pistons work.In addition, because O type rubber seal is applicable to hydropneumatic system and various plant equipment and components and parts, can at different liquid or gas medium, play good sealing function under static or motion state, therefore sealing ring 6 and sealing ring 8 can select O type rubber seal.
In this Drilling vibration generating tool 100, utilize the periodic pressure pulse that the hydraulic pressure pulse generating unit from tool exterior produces, pressure differential between periodically-varied tool interior drilling liquid pressure and mineshaft annulus between pressure, change the hydraulic action acting on driven plunger about 12 two ends, under hydraulic coupling and spring force acting in conjunction, drive vibration axle 1 to move back and forth.Actual when using, first can come pulse required for setting means and frequency according to applying working condition, and the position of pre-load determination tool mounting position distance drilling bit according to bottomhole assembly situation and disc spring group 10.
The present invention is mainly used in extended reach well in oil drilling, Horizontal Well Drilling well construction, also can be used for the drilling well underground construction in the fields such as geological prospecting, hydrological well, underground heat.When constructing, this being crept into vibration generating tool 100 joins in steerable motor drilling assembly, the pressure pulse utilizing the high frequency pulse generator being connected to its underpart to produce produces periodically gentle vibration, makes drilling assembly produce axial vibration, changes static friction into dynamic friction.Like this, friction when can reduce slipping drilling and rotary drilling between the borehole wall and drilling rod, improves load transfer, thus improve rate of penetration and extended reach well, horizontal well extends ability, and efficiently solves the unmanageable difficult problem of tool-face.In addition, this creeps into vibration generating tool 100 and also has use safety, long working life, can not produce the features such as destruction to drill bit or other drilling tool.
It should be noted, foregoing example only to be interpreted as object, and can not be thought to limit the present invention.Although invention has been described according to exemplary embodiment, but should be appreciated that used herein is descriptive and illustrative language, instead of restrictive language.Current described with in the scope of the claims of amendment, not departing from the scope of the present invention in the scope with spirit, can change the present invention.Although according to specific mode, material and embodiment, invention has been described here, the present invention is not limited in details disclosed herein; On the contrary, the present invention extends to structure, the methods and applications of such as all identical functions within the scope of the appended claims.
Claims (10)
1. a Drilling vibration generating tool, comprising:
Be connected successively and have separately hollow cavity urceolus, breathe urceolus and disc spring urceolus, in disc spring urceolus, be provided with dished spring assembly,
Penetrate described urceolus and breathe urceolus and the vibration axle extended in the hollow cavity of described disc spring urceolus, being connected with driven plunger at the free end be in disc spring urceolus of described vibration axle,
Wherein, block piece is set between described vibration axle and the inwall of described breathing urceolus.
2. Drilling vibration generating tool according to claim 1, is characterized in that, the distance between described block piece and the link of urceolus is set to the vibratility adjustment equaling to vibrate axle.
3. Drilling vibration generating tool according to claim 1 and 2, is characterized in that, described block piece comprises two circumferences and relatively binds round the half-watt in described vibration axle.
4. the Drilling vibration generating tool according to any one of Claim 1-3, it is characterized in that, between described vibration axle and the inwall of described breathing urceolus, be also provided with floating piston, and described breathing urceolus is provided with and is formed in the spiracle of the chamber between described block piece and described floating piston.
5. the Drilling vibration generating tool according to any one of claim 1 to 4, is characterized in that, described vibration axle and urceolus by spline joint, and are also formed with the first chamber in spline joint region.
6. Drilling vibration generating tool according to claim 5, is characterized in that, described vibration axle, breathing urceolus, disc spring urceolus and driven plunger collectively define the second airtight chamber, in described second chamber, be filled with hydraulic oil.
7. Drilling vibration generating tool according to claim 6, is characterized in that, the volume variable quantity of described first chamber is equal with the volume variable quantity of described second chamber.
8. Drilling vibration generating tool according to claim 7, is characterized in that, the volume variable quantity of described first chamber and the second chamber is set to the volume change equaling described dished spring assembly.
9. the Drilling vibration generating tool according to any one of claim 6 to 8, is characterized in that, described dished spring assembly is positioned at the second chamber, and the performance parameter of described dished spring assembly and preload size adjustable.
10. Drilling vibration generating tool according to claim 4, is characterized in that, the two ends up and down of described floating piston are equipped with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410253798.0A CN105134081B (en) | 2014-06-09 | 2014-06-09 | Drilling vibration generating tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410253798.0A CN105134081B (en) | 2014-06-09 | 2014-06-09 | Drilling vibration generating tool |
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| Publication Number | Publication Date |
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| CN105134081A true CN105134081A (en) | 2015-12-09 |
| CN105134081B CN105134081B (en) | 2018-03-02 |
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| CN201410253798.0A Active CN105134081B (en) | 2014-06-09 | 2014-06-09 | Drilling vibration generating tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888554A (en) * | 2016-05-23 | 2016-08-24 | 宝鸡市远深石油设备新技术有限公司 | Hydraulic push-return impact oscillator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2236540C1 (en) * | 2002-12-30 | 2004-09-20 | Габдрахимов Наиль Мавлитзянович | Vibrating means for well drilling |
| CN200940449Y (en) * | 2006-08-21 | 2007-08-29 | 贵州高峰石油机械有限责任公司 | Mechanical hydraulic shock absorber |
| CN202883880U (en) * | 2012-09-28 | 2013-04-17 | 中国石油化工股份有限公司 | Drill column axial vibration anti-dragging tool driven by motor |
| 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 |
-
2014
- 2014-06-09 CN CN201410253798.0A patent/CN105134081B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2236540C1 (en) * | 2002-12-30 | 2004-09-20 | Габдрахимов Наиль Мавлитзянович | Vibrating means for well drilling |
| CN200940449Y (en) * | 2006-08-21 | 2007-08-29 | 贵州高峰石油机械有限责任公司 | Mechanical hydraulic shock absorber |
| CN202883880U (en) * | 2012-09-28 | 2013-04-17 | 中国石油化工股份有限公司 | Drill column axial vibration anti-dragging tool driven by motor |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888554A (en) * | 2016-05-23 | 2016-08-24 | 宝鸡市远深石油设备新技术有限公司 | Hydraulic push-return impact oscillator |
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| CN105134081B (en) | 2018-03-02 |
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