CN2653112Y - Hydraulic pulse jet nozzle of drill bit - Google Patents
Hydraulic pulse jet nozzle of drill bit Download PDFInfo
- Publication number
- CN2653112Y CN2653112Y CN 03269457 CN03269457U CN2653112Y CN 2653112 Y CN2653112 Y CN 2653112Y CN 03269457 CN03269457 CN 03269457 CN 03269457 U CN03269457 U CN 03269457U CN 2653112 Y CN2653112 Y CN 2653112Y
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- nozzle
- frequency modulation
- oscillator
- disturbing
- flow
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Abstract
A drill hydraulic pulse nozzle is composed of a nozzle pipe, a frequency modulation rod and a burble oscillator and so on. The inner cavity of the nozzle includes a nozzle flow guiding part, a nozzle acceleration part, a nozzle stabilization part and a nozzle diffusion part from top to bottom. It is characterized in that one end of the frequency modulation rod is fixed at the external part of the nozzle pipe along the axial direction, the other end of the frequency modulation rod is fixed with the burble oscillator; the upper section of the inner wall of the burble oscillator is the constriction guiding part, the lower section is the diffusion part; the frequency modulation rod vibrates along the radial direction periodically around the fixed end under the combined action of wallop of the water, the movement inertia force of the frequency modulation rod and the elastic force due to the deformation of the frequency modulation rod, and thereby making the nozzle of the sprinkling water formed by the inner wall of burble oscillator expand and shrink periodically, and creating a water force pulse under the well. Furthermore, the burble oscillator, the frequency modulation rod and the outlet of the nozzle form an open harmonic cavity that enables the sprinkling water to create self-oscillation, which reinforces the strength of the pulse and improves the efficiency of drilling rock.
Description
Technical field:
The utility model belongs to oil, gas drilling bit nozzle.
Technical background:
In the situation that does not increase ground pump power and equipment, to improve the drilling machinery drilling speed in the changes in distribution of time and spatial level be that domestic and international drilling engineering circle does not stop the problem to explore all the time by optimizing bottom-hole flow field.Practice shows that the suitable pulsation of bottom-hole flow field helps to improve the broken rock of jet, auxiliary rock efficient, improves rate of penetration.The hydraulic pulse that obtains the shaft bottom by adjustment bit nozzle structure is a kind of method commonly used, mainly be one or several resonators to be set at present in nozzle interior, after solid jet enters resonator, through self-oscillation process such as resonance, feedback, frequency-selecting and amplifications, form pulse jet at jet expansion.One of subject matter of technology existence at present is that nozzle life is short, this is that self also will produce vibration because be nozzle when making jet produce pulsation, and this vibration has negative effect to the normal use of nozzle, easily make nozzle produce fatigue failure, thereby reduce application life.Discover that in addition the ripple frequency of jet directly influences broken rock, the auxiliary rock-breaking effect of jet, and the effect of jet low frequency pulsating is better than dither, but since the performance limitations of material the wall thickness of nozzle resonator can not be too small, therefore the pulsation pulse jet frequency that nozzle produced commonly used at present is all higher, and the performance that the hydraulic pulse jet breaks rock, auxiliary rock technical advantage has been subjected to certain limitation.Therefore developing the bit nozzle that the hydraulic pulse frequency that satisfies on-the-spot actual needs, produced is lower, application life is long, is key issue in the broken rock of current hydraulic pulse jet, the auxiliary rock technical research.
Summary of the invention:
The utility model designs for addressing this problem just, it is by nozzle body, parts such as frequency modulation bar and flow-disturbing oscillator are formed, nozzle chamber from top to bottom is respectively the nozzle diversion section, the nozzle accelerating sections, nozzle stable section and nozzle diffuser, one end of frequency modulation bar is fixed on the nozzle body outside vertically, the other end at the frequency modulation bar is fixed with the flow-disturbing oscillator, the top of flow-disturbing oscillator is that the flow-disturbing oscillator shrinks boot segment, the bottom is a flow-disturbing oscillator diffuser, the nozzle chamber wall is smooth, convergent streamlined, make jet stack smooth, continuous transition, to reduce the coupled vibrations of fluid and nozzle inner walls, after jet is sprayed by nozzle, impact on the flow-disturbing oscillator, promote the frequency modulation bar around the radially outwards motion of top fixed end, increase along with flow-disturbing oscillator and jet axis distance, the jet impact force that acts on the flow-disturbing oscillator reduces gradually, the elastic force that frequency modulation bar distortion simultaneously produces increases gradually, but the frequency modulation bar radially continues outwards motion under the force action of the inertia force of jet impact force and the motion of frequency modulation bar, when the elastic force balance of making a concerted effort to produce with the distortion of frequency modulation bar of the impact force of the inertia force of frequency modulation bar motion and jet, it is maximum that the distance that the frequency modulation bar radially outwards moves reaches, it is maximum that the jet exit aperture that the inwall of the flow-disturbing oscillator that this moment is relative forms reaches, form the high value of hydraulic pulse, the frequency modulation bar is under the resilient force that its distortion produces then, radially inwardly motion, along with the reducing of jet axis distance, the jet impact force that acts on the flow-disturbing oscillator increases gradually, but under the inertia force force action of elastic force that frequency modulation bar distortion produces and the motion of frequency modulation bar, the frequency modulation bar continues radially to move to jet axis, the impact force balance with jet of making a concerted effort up to the inertia force of the elastic force of frequency modulation bar distortion and the motion of frequency modulation bar, it is minimum that the jet exit aperture that formed by relative flow-disturbing oscillator inwall this moment reaches, form the low value of hydraulic pulse, in the water jet impact force, under the force action of the elastic force that the inertia force of frequency modulation bar motion and the distortion of frequency modulation bar produce, the frequency modulation bar is around fixed end periodic vibration radially, the feasible jet exit aperture that is formed by relative flow-disturbing oscillator inwall periodically increases or diminishes, thereby produce hydraulic pulse in the shaft bottom, flow-disturbing oscillator in addition, frequency modulation bar and jet expansion end face, form an open resonator, can make jet formation self-oscillation to a certain degree, strengthen the pulsation degree of depth of jet, the frequency of hydraulic pulse and peak value are by adjusting the physical dimension of frequency modulation bar, the geometry of material property and flow-disturbing oscillator internal face, the geometry of nozzle chamber wall obtains, the utility model is short for solving the life-span that exists in the prior art just, problems such as the high and difficult adjusting of hydraulic pulse frequency design, and the purpose of this utility model provides a kind of drill bit hydraulic pulse nozzle for the scene exactly.
The utility model creatively is used for the bit nozzle modulation with open machinery blocking-up and produces hydraulic pulse, act on the shaft bottom, improve near the force-bearing situation of the rock in shaft bottom, effectively improve broken rock drilling efficiency, the utlity model has simple in structure, easily increase the service life, the hydraulic pulse frequency is lower and be easy to characteristics such as adjusting, for improve bit speed, reducing production costs has important and practical meanings.
The utility model is achieved like this, nozzle chamber from top to bottom is respectively nozzle diversion section, nozzle accelerating sections, nozzle stable section and nozzle diffuser, one end of frequency modulation bar is fixed on the nozzle body outside vertically, the other end at the frequency modulation bar is fixed with the flow-disturbing oscillator, the top of flow-disturbing oscillator is that the flow-disturbing oscillator shrinks boot segment, and the bottom is a flow-disturbing oscillator diffuser.
The utility model is when producing hydraulic pulse, the nozzle chamber wall is smooth, convergent streamlined, make jet stack smooth, continuous transition, to reduce the coupled vibrations of fluid and nozzle inner walls, after jet is sprayed by nozzle, impact on the flow-disturbing oscillator, promote the frequency modulation bar around the radially outwards motion of top fixed end, increase along with flow-disturbing oscillator and jet axis distance, the jet impact force that acts on the flow-disturbing oscillator reduces gradually, the elastic force that frequency modulation bar distortion simultaneously produces increases gradually, but the frequency modulation bar radially continues outwards motion under the force action of the inertia force of jet impact force and the motion of frequency modulation bar, when the elastic force balance of making a concerted effort to produce with the distortion of frequency modulation bar of the impact force of the inertia force of frequency modulation bar motion and jet, it is maximum that the distance that the frequency modulation bar radially outwards moves reaches, it is maximum that the jet exit aperture that the inwall of the flow-disturbing oscillator that this moment is relative forms reaches, form the high value of hydraulic pulse, the frequency modulation bar is under the resilient force that its distortion produces then, radially inwardly motion, along with the reducing of jet axis distance, the jet impact force that acts on the flow-disturbing oscillator increases gradually, but under the inertia force force action of elastic force that frequency modulation bar distortion produces and the motion of frequency modulation bar, the frequency modulation bar continues radially to move to jet axis, the impact force balance with jet of making a concerted effort up to the inertia force of the elastic force of frequency modulation bar distortion and the motion of frequency modulation bar, it is minimum that the jet exit aperture that formed by relative flow-disturbing oscillator inwall this moment reaches, form the low value of hydraulic pulse, in the water jet impact force, under the force action of the elastic force that the inertia force of frequency modulation bar motion and the distortion of frequency modulation bar produce, the frequency modulation bar is around fixed end periodic vibration radially, the feasible jet exit aperture that is formed by relative flow-disturbing oscillator inwall periodically increases or diminishes, thereby produce hydraulic pulse in the shaft bottom, flow-disturbing oscillator in addition, frequency modulation bar and jet expansion end face, form an open resonator, can make jet formation self-oscillation to a certain degree, strengthen the pulsation degree of depth of jet, the frequency of hydraulic pulse and peak value are by adjusting the physical dimension of frequency modulation bar, the geometry of material property and flow-disturbing oscillator internal face, the geometry of nozzle chamber wall obtains.
Description of drawings:
A kind of drill bit hydraulic pulse of Fig. 1 nozzle schematic diagram
1. nozzle body; 2. nozzle diversion section; 3. nozzle accelerating sections; 4. nozzle stable section; 5. nozzle diffuser; 6. frequency modulation bar; 7. the flow-disturbing oscillator shrinks boot segment; 8. flow-disturbing oscillator diffuser; 9. flow-disturbing oscillator
The specific embodiment:
Now the utility model will be further described in conjunction with Figure of description.
When adopting the utility model to produce hydraulic pulse, nozzle chamber from top to bottom is respectively nozzle diversion section [2], nozzle accelerating sections [3], nozzle stable section [4] and nozzle diffuser [5], one end of frequency modulation bar [6] is fixed on nozzle body [1] outside vertically, the other end at frequency modulation bar [6] is fixed with flow-disturbing oscillator [9], the top of flow-disturbing oscillator [9] is that flow-disturbing oscillator [9] shrinks boot segment [7], and the bottom is flow-disturbing oscillator [a 9] diffuser [8].
When adopting the utility model to produce hydraulic pulse, the nozzle chamber wall is smooth, convergent streamlined, make jet stack smooth, continuous transition, to reduce the coupled vibrations of fluid and nozzle inner walls, after jet is sprayed by nozzle, impact on the flow-disturbing oscillator [9], promote frequency modulation bar [6] around the radially outwards motion of top fixed end, along with the increase of flow-disturbing oscillator [9] with the jet axis distance, the jet impact force that acts on the flow-disturbing oscillator [9] reduces gradually, the elastic force that frequency modulation bar [6] distortion simultaneously produces increases gradually, but frequency modulation bar [6] radially continues outwards motion under the force action of the inertia force of jet impact force and frequency modulation bar [6] motion, when the elastic force balance of making a concerted effort to produce with frequency modulation bar [6] distortion of the impact force of the inertia force of frequency modulation bar [6] motion and jet, it is maximum that the distance that frequency modulation bar [6] radially outwards moves reaches, it is maximum that the jet exit aperture that the inwall of the flow-disturbing oscillator [9] that this moment is relative forms reaches, form the high value of hydraulic pulse, frequency modulation bar [6] is under the resilient force that its distortion produces then, radially inwardly motion, along with the reducing of jet axis distance, the jet impact force that acts on the flow-disturbing oscillator [9] increases gradually, but under the inertia force force action of elastic force that frequency modulation bar [6] distortion produces and frequency modulation bar [6] motion, frequency modulation bar [6] continues radially to move to jet axis, the impact force balance with jet of making a concerted effort up to the inertia force of the elastic force of frequency modulation bar [6] distortion and frequency modulation bar [6] motion, it is minimum that the jet exit aperture that formed by relative flow-disturbing oscillator [9] inwall this moment reaches, form the low value of hydraulic pulse, in the water jet impact force, under the force action of the elastic force that the inertia force of frequency modulation bar [6] motion and frequency modulation bar [6] distortion produce, frequency modulation bar [6] is around fixed end periodic vibration radially, the feasible jet exit aperture that is formed by relative flow-disturbing oscillator [9] inwall periodically increases or diminishes, thereby produce hydraulic pulse in the shaft bottom, flow-disturbing oscillator [9] in addition, frequency modulation bar [6] and jet expansion end face, form an open resonator, can make jet formation self-oscillation to a certain degree, strengthen the pulsation degree of depth of jet, the frequency of hydraulic pulse and peak value are by adjusting the physical dimension of frequency modulation bar [6], the geometry of material property and flow-disturbing oscillator [9] internal face, the geometry of nozzle chamber wall obtains.
Claims (4)
1. the nozzle chamber of a drill bit hydraulic pulse nozzle from top to bottom is respectively nozzle diversion section [2], nozzle accelerating sections [3], nozzle stable section [4] and nozzle diffuser [5], an end that it is characterized in that frequency modulation bar [6] is fixed on nozzle body [1] outside vertically, the other end at frequency modulation bar [6] is fixed with flow-disturbing oscillator [9], the top of flow-disturbing oscillator [9] is that the flow-disturbing oscillator shrinks boot segment [7], and the bottom is a flow-disturbing oscillator diffuser [8].
2. a kind of drill bit hydraulic pulse nozzle according to claim 1 is characterized in that the internal face of nozzle diversion section [2], nozzle accelerating sections [3] and nozzle diffuser [5] is streamlined curved surface.
3. a kind of drill bit hydraulic pulse nozzle according to claim 1 is characterized in that the internal face of nozzle stable section [4] is a cylindrical surface, and the length of nozzle stable section [4] is 1 to 5 times of jet expansion diameter.
4. a kind of drill bit hydraulic pulse nozzle according to claim 1 is characterized in that the flow-disturbing oscillator contraction boot segment [7] of flow-disturbing oscillator [9] and the internal face of flow-disturbing oscillator diffuser [8] are the power exponent curved surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03269457 CN2653112Y (en) | 2003-08-14 | 2003-08-14 | Hydraulic pulse jet nozzle of drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03269457 CN2653112Y (en) | 2003-08-14 | 2003-08-14 | Hydraulic pulse jet nozzle of drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2653112Y true CN2653112Y (en) | 2004-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03269457 Expired - Fee Related CN2653112Y (en) | 2003-08-14 | 2003-08-14 | Hydraulic pulse jet nozzle of drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2653112Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569595A (en) * | 2016-02-25 | 2016-05-11 | 中国海洋石油总公司 | Hydraulic oscillator |
| CN106050232A (en) * | 2016-06-22 | 2016-10-26 | 中国矿业大学 | Water-saving efficiency-increased hydraulic cutting pick |
| CN106285492A (en) * | 2016-10-24 | 2017-01-04 | 中国石油大学(北京) | Crusher drill in tandem type pulse enhanced |
| CN106285493A (en) * | 2016-10-24 | 2017-01-04 | 中国石油大学(北京) | Crusher drill in horizontal well spinning pulse |
| CN108431430A (en) * | 2015-11-18 | 2018-08-21 | 福迪斯流体动力有限公司 | fluid components |
-
2003
- 2003-08-14 CN CN 03269457 patent/CN2653112Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108431430A (en) * | 2015-11-18 | 2018-08-21 | 福迪斯流体动力有限公司 | fluid components |
| US11471898B2 (en) | 2015-11-18 | 2022-10-18 | Fdx Fluid Dynamix Gmbh | Fluidic component |
| CN105569595A (en) * | 2016-02-25 | 2016-05-11 | 中国海洋石油总公司 | Hydraulic oscillator |
| CN106050232A (en) * | 2016-06-22 | 2016-10-26 | 中国矿业大学 | Water-saving efficiency-increased hydraulic cutting pick |
| CN106285492A (en) * | 2016-10-24 | 2017-01-04 | 中国石油大学(北京) | Crusher drill in tandem type pulse enhanced |
| CN106285493A (en) * | 2016-10-24 | 2017-01-04 | 中国石油大学(北京) | Crusher drill in horizontal well spinning pulse |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |