CN206158692U - But rotating nozzle formula double helix hydraulic ejector - Google Patents
But rotating nozzle formula double helix hydraulic ejector Download PDFInfo
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- CN206158692U CN206158692U CN201621178079.8U CN201621178079U CN206158692U CN 206158692 U CN206158692 U CN 206158692U CN 201621178079 U CN201621178079 U CN 201621178079U CN 206158692 U CN206158692 U CN 206158692U
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- nozzle
- double helix
- hydraulic ejector
- ejector
- archimedes
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- 239000000956 alloy Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- 239000004576 sand Substances 0.000 abstract description 13
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- 239000000463 material Substances 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 239000008187 granular material Substances 0.000 abstract description 2
- 230000000977 initiatory effect Effects 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 abstract description 2
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- 239000007921 spray Substances 0.000 description 8
- 239000012530 fluid Substances 0.000 description 7
- 238000011144 upstream manufacturing Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
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- 230000000149 penetrating effect Effects 0.000 description 2
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- 208000031481 Pathologic Constriction Diseases 0.000 description 1
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- 229910000831 Steel Inorganic materials 0.000 description 1
- 241000826860 Trapezium Species 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000009096 changqing Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
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- 230000007547 defect Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004899 motility Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
- 210000001215 vagina Anatomy 0.000 description 1
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- Nozzles (AREA)
Abstract
The utility model provides a but rotating nozzle formula double helix hydraulic ejector, at the structural archimedes double -spiral structure that has designed of conventional hydraulic ejector inner chamber, the corrosion resistant material that wear -resistants has been plated in archimedes's double helix body double helix groove, has prevented two spiral flowing channel's local erosion. Because 4 ball nozzles (containing tapered roller bearing and nozzle cage) distribute on sprayer body inner chamber double helix groove, make and take the sand flow body flows every nozzle along double helix groove runner in sprayer body inner chamber in, realized that a sand granule concentration between two upper and lower trip nozzles of bunch hydraulic ejector, flow, pressure are even, effectively solved pair bunch hydraulic ejector inefficacy difficult problems, the practicality is strong, and the effect is showing. Be rotatable nozzle with conventional hydraulic ejector's nozzle design, realized the real -time adjustment in water conservancy oriented perforating fracturing position, improved the oriented perforating success rate, improved crack pore crack initiation effect.
Description
Technical field
This utility model belongs to Oil/gas Well hydraulic sand blasting technical field, and in particular to a kind of rotatable nozzle-type Double helix water
Power ejector.
Background technology
Changqing oilfields densification oil-gas reservoir generally carries out reservoir and changes using staged fracturing sub-clustering perforating hydraulic injection fracturing string
Make, formation testing, completion integral operation, wherein hydraulic ejector be implement hydro-jet fracturing technology key tool.At present, exist
Before the construction of horizontal well hydraulic jetting fracturing, during due to entering under hydraulic jetting fracturing tubing string to net horizontal section target zone, conventional hydraulic
Ejector is substantially contacted with wellbore casing inwall, causes certain nozzle of conventional hydraulic ejector or certain two nozzle and shaft sleeve
Gap very little between inside pipe wall, only reserves 2 ~ 3mm, it is contemplated that the nozzle of conventional hydraulic ejector is fixed, so as to cannot
Hydraulic directional perforating and fracturing operation is effectively carried out, the duct number for opening up meter can't be completely penetrated sometimes, it is impossible to spray conventional hydraulic
The each nozzle of emitter can effectively be directed at minimum stress direction or prime stratum fracture extension direction is oriented perforation, perforation success
Rate is low, it is difficult to meet live pressing crack construction needs.Additionally, occurring in that sand particles are dense between double cluster hydraulic ejector upstream and downstream nozzles
The serious uneven phenomenon of degree, flow, pressure, and cause upstream injector penetrate not open sleeve pipe and stratum or perforation time length, under
Trip ejector penetrates out in advance sleeve pipe and stratum and erosion failure occurs.For this purpose, devising rotatable nozzle-type Double helix waterpower spray
Emitter.
Utility model content
The purpose of this utility model is to overcome existing hydraulic ejector because nozzle is fixed, and causes nozzle to be effectively aligned
Minimum stress direction or prime stratum fracture extension direction are oriented perforation, cause the low success rate of problem of perforation.
For this purpose, this utility model provides a kind of rotatable nozzle-type Double helix hydraulic ejector, including ejector body,
Archimedes's dual-spiral sprue is offered on ejector body internal chamber wall, is evenly distributed with Archimedes's dual-spiral sprue
Four nozzle cages, nozzle cage is threaded in Archimedes's dual-spiral sprue, and a circular cone is provided with each nozzle cage
Roller bearing, the inner ring of taper roll bearing is provided with ball nozzle, and ball nozzle is communicated to the outer surface of ejector body.
The surface of Archimedes's dual-spiral sprue is coated with nickel-bass alloy material.
It is interference fit between the taper roll bearing and nozzle cage, passes through between taper roll bearing and ball nozzle
Sealing pair is tightly connected.
The ball nozzle radial direction angle rotatable scope is ± 45 °.
Along clockwise direction, helical angle is 45 ° to the bifilar helix of Archimedes's dual-spiral sprue, bifilar helix pitch
It is 120mm, spacing is 30mm.
The two ends of the ejector body are provided with external screw thread.
The beneficial effects of the utility model：This rotatable nozzle-type Double helix water-jet that this utility model is provided
Device, devises Archimedes's double-spiral structure, the double spiral shells of Archimedes's Double helix body on conventional hydraulic ejector inner-cavity structure
Spin slot is coated with wear-resistant corrosion resistant material, it is therefore prevented that the local erosion of dual-spiral sprue.Due to 4 ball-type nozzles（Axle containing taper roller
Hold and nozzle cage）It is distributed on Archimedes's Double helix chamber body double spiral groove, makes to take sand flow body in Archimedes's Double helix
In chamber body along double spiral groove runner stream to each nozzle, granule between the nozzle of double cluster hydraulic ejector upstream and downstream is realized
Sand concentration, flow, pressure are uniform, efficiently solve a double cluster hydraulic ejector failure difficult problems, practical, effect is significant.Will be normal
The nozzle of rule hydraulic ejector is designed as rotatable nozzle, realizes the real-time adjustment in hydraulic directional perforating and fracturing orientation, carries
High oriented perforating success rate, improves crack duct crack initiation effect.
This utility model is described in further details below with reference to accompanying drawing.
Description of the drawings
Fig. 1 is the structural representation of rotatable nozzle-type Double helix hydraulic ejector.
Fig. 2 is B-B direction Archimedes's dual-spiral sprue expanded schematic diagram clockwise of Fig. 1.
Fig. 3 is the A-A of Fig. 1 to schematic diagram.
Description of reference numerals：1st, ejector body；2nd, nozzle cage；3rd, ball nozzle；4th, taper roll bearing；5th, A Ji meter
Moral dual-spiral sprue.
Specific embodiment
Embodiment 1：
In order to overcome existing hydraulic ejector because nozzle is fixed, nozzle is caused effectively to be directed at minimum stress direction
Or prime stratum fracture extension direction is oriented perforation, the low success rate of problem of perforation is caused, present embodiments provided such as Fig. 1
With a kind of rotatable nozzle-type Double helix hydraulic ejector shown in Fig. 2, including ejector body 1, the internal chamber wall of ejector body 1
On offer Archimedes's dual-spiral sprue 5, is evenly distributed with four nozzle cages 2 in Archimedes's dual-spiral sprue 5, spray
Muzzle 2 is threaded in Archimedes's dual-spiral sprue 5, and in each nozzle cage 2 taper roll bearing 4 is provided with,
The inner ring of taper roll bearing 4 is provided with ball nozzle 3, and ball nozzle 3 is communicated to the outer surface of ejector body 1.
The course of work of rotatable nozzle-type Double helix hydraulic ejector is：
（One）Before oil gas horizontal well carries out staged fracturing sub-clustering perforating hydraulic injection pressing crack construction, according in detail design
Tubular column structure combination requirement, connects the hydraulic jetting fracturing tubing string with rotatable nozzle-type Double helix hydraulic ejector, and
To spray in fracturing string lower going-into-well cylinder, make under rotatable nozzle-type Double helix hydraulic ejector to design well depth position；
（Two）Using pump truck with 0.6～0.8m of discharge capacity3/ min, pump pressure 25MPa clear water circulation well cleanups, it is ensured that pit shaft machinery is miscellaneous
Matter content is less than 0.2%, until wellbore clean is clean；
（Three）Pump truck output is improved to 1.8 ~ 2.0m3/ min, is 130 ~ 150kg/m by sand concentration3Load fluid along injection pressure
Split tubing string to pump at rotatable nozzle-type Double helix hydraulic ejector, load fluid through ejector body 1 because producing eddy flow to every
In individual ball nozzle 3, while load fluid flows through ball nozzle 3 produces the high-speed jet that flow velocity is up to 200m/s, due to spherical spray
The throttling action of mouth 3 produces high dynamic pressure at nozzle（Dynamic load）, force cone rolling 4 to rotate, realize spherical
The orientation Real-time and Dynamic of nozzle 3 is adjustable, is effectively oriented perforating and fracturing, so that taking sand jet liquid vectored injection to sleeve pipe at a high speed
Inwall reaches the purpose for penetrating out sleeve pipe and stratum, forms the perforation tunnel of pit shaft and combination of zones；
（Four）After penetrating out sleeve pipe and stratum, continue to improve discharge capacity to 2.4 ~ 3.0m3/ min proceeds by hydraulic directional pressure
Split, according to design pressure break time requirement pressure break after, then with displacement fluid will spray fracturing string in fracturing fluid all replace into stratum, with
Complete reservoir fracturing improvement purpose；
（Five）It is upper to propose injection fracturing string after the completion for the treatment of staged fracturing sub-clustering perforating hydraulic injection pressing crack construction, in time
Dismounting, the ejector body 1 for checking rotatable nozzle-type Double helix hydraulic ejector（Containing outer wall and inner chamber）, ball nozzle 3（Contain
Erosion）, taper roll bearing 4（Motility containing rolling bearing）Service condition, it is double for maintaining or changing rotatable nozzle-type
Spiral hydraulic ejector, subsequently to carry out hydraulic jetting fracturing construction again.
The nozzle of rotatable nozzle-type Double helix hydraulic ejector is to realize rotation in the following way：Sand flow body is taken in spray
Flow in each ball nozzle 3 along Archimedes's dual-spiral sprue 5 in the inner chamber of emitter body 1, take sand flow body by spherical spray
Due to the dynamic pressure of chock pressure difference during mouth 3（Impulse force）Effect drives taper roll bearing 4 to rotate, and taper roll bearing 4 limits axle
To rotation, so as to force ball nozzle 3 radially to rotate, the orientation adjustment of ball nozzle 3 is realized.Four ball nozzles 3（Containing circular cone
Roller bearing 4 and nozzle cage 2）It is evenly distributed in Archimedes's dual-spiral sprue 5 of the inner chamber of ejector body 1, it is ensured that
Take sand flow body to flow in each ball nozzle 3 along Archimedes's dual-spiral sprue 5 in the inner chamber of ejector body 1, realize
Sand particles concentration, flow, pressure are uniform between double cluster hydraulic ejector upstream and downstream nozzles.It should be noted that the double spiral shells of Archimedes
The three-dimensional shape in eddy flow road 5 is dovetail groove, as shown in figure 3, the trapezoidal flute length 120mm of spiral, groove depth 5mm, groove bottom width 10mm,
60 ° of trapezoidal angle.
This utility model compared with conventional hydraulic ejector, not only can each nozzle of real-time adjustment hydraulic ejector orientation
Perforation orientation, the fluidised form and flow direction that can also make to take sand flow body changes to being conducive to even in each nozzle, effectively solving
Horizontal well conventional hydraulic ejector each nozzle cannot real-time adjustment orientation problem, while solving conventional double cluster water-jets
The uneven problem of sand concentration, flow, pressure between the nozzle of device upstream and downstream, drastically increases conventional hydraulic ejector orientation and penetrates
Hole success rate, effectively prevent double cluster hydraulic ejectors causes downstream injectors premature failure because of erosion, has reached double cluster water
Power ejector upstream and downstream nozzle real-time, tunable orientation and the simultaneously purpose of oriented perforating pressure break reservoir, practical is strong, application
Effect is significant, in being suitably applied staged fracturing of horizontal well sub-clustering perforating hydraulic injection fracturing string.
Embodiment 2：
On the basis of embodiment 1, the surface of Archimedes's dual-spiral sprue 5 is coated with nickel-bass alloy material, in case
Fluid stopping body causes the local erosion of the dovetail groove of Archimedes's dual-spiral sprue 5 due to the change of rotation direction.
Embodiment 3：
It is interference fit between the taper roll bearing 4 and nozzle cage 2 on the basis of embodiment 1, taper roller axle
Hold and be tightly connected by sealing pair between 4 and ball nozzle 3.The radial direction angle rotatable scope of the ball nozzle 3 is ± 45 °,
Ball-type nozzle diameter 6.3mm, nozzle cage diameter 42mm.
The ball nozzle 3 and nozzle cage 2 are made using erosion resistance hard alloy tungsten carbide YG8 materials, thermally treated hard
Degree reaches HRC92 ~ 95；Taper roll bearing 4 is made using high-carbon-chromium bearing steel GCr15 materials, strong with very high contact fatigue
Degree, high-wearing feature and dimensional stability, taper roll bearing model 32904, external diameter 37mm, internal diameter 20mm, thickness 12mm, dynamic
Nominal load 3.5kN；In addition, ejector body 1 adopts 35CrMo materials, thermally treated HBW197 ~ 235, as shown in figure 3, interior
The special processing Archimedes's Double helix trapezium structure in chamber, and on Double helix dovetail groove surface nickel-bass alloy material is coated with case fluid stopping
Body causes spiral dovetail groove local erosion due to the change of rotation direction.
Along clockwise direction, helical angle is 45 ° to the bifilar helix of Archimedes's dual-spiral sprue 5, bifilar helix spiral shell
Away from being 120mm, spacing is 30mm.
The two ends of the ejector body 1 are provided with external screw thread, the two ends spiral shell of rotatable nozzle-type Double helix hydraulic ejector
Stricture of vagina is connected on staged fracturing of horizontal well sub-clustering perforating hydraulic injection fracturing string, enter horizontal well pair mesh under fracturing string with spraying
Layer be oriented perforating and fracturing, externally threaded button-type is 2-7/8 " EUE, the tooth of per inch 8, taper 1:16, ejector body 1
Length 380mm, external diameter 100mm, internal diameter 40mm.
It should be noted that the processing of ejector body 1, ball nozzle 3, nozzle cage 2 and taper roll bearing 4 is not allow for
The defects such as crackle, pore.
Exemplified as above is only, to illustration of the present utility model, not constitute to protection domain of the present utility model
Limit, every design same or analogous with this utility model is belonged within protection domain of the present utility model.The present embodiment
Part without detailed narration and structure belong to the well-known components and common structure or conventional means of the industry, do not chat one by one here
State.
Claims (6)
1. a kind of rotatable nozzle-type Double helix hydraulic ejector, including ejector body（1）, ejector body（1）Internal chamber wall
On offer Archimedes's dual-spiral sprue（5）, it is characterised in that：Archimedes's dual-spiral sprue（5）Inside it is uniformly distributed
There are four nozzle cages（2）, nozzle cage（2）It is threaded in Archimedes's dual-spiral sprue（5）It is interior, each nozzle cage（2）It is interior
One taper roll bearing is installed（4）, taper roll bearing（4）Inner ring ball nozzle is installed（3）, ball nozzle（3）
It is communicated to ejector body（1）Outer surface.
2. rotatable nozzle-type Double helix hydraulic ejector as claimed in claim 1, it is characterised in that：The Archimedes is double
Helical flow path（5）Surface be coated with nickel-bass alloy material.
3. rotatable nozzle-type Double helix hydraulic ejector as claimed in claim 1, it is characterised in that：The taper roller axle
Hold（4）With nozzle cage（2）Between be interference fit, taper roll bearing（4）With ball nozzle（3）Between by seal secondary sealing
Connection.
4. rotatable nozzle-type Double helix hydraulic ejector as claimed in claim 1, it is characterised in that：The ball nozzle
（3）Radial direction angle rotatable scope is ± 45 °.
5. rotatable nozzle-type Double helix hydraulic ejector as claimed in claim 1, it is characterised in that：The Archimedes is double
Helical flow path（5）Bifilar helix along clockwise direction, helical angle is 45 °, and bifilar helix pitch is 120mm, and spacing is 30mm.
6. rotatable nozzle-type Double helix hydraulic ejector as claimed in claim 1, it is characterised in that：The ejector body
（1）Two ends be provided with external screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621178079.8U CN206158692U (en) | 2016-10-27 | 2016-10-27 | But rotating nozzle formula double helix hydraulic ejector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621178079.8U CN206158692U (en) | 2016-10-27 | 2016-10-27 | But rotating nozzle formula double helix hydraulic ejector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206158692U true CN206158692U (en) | 2017-05-10 |
Family
ID=58657191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621178079.8U Active CN206158692U (en) | 2016-10-27 | 2016-10-27 | But rotating nozzle formula double helix hydraulic ejector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206158692U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351617A (en) * | 2016-10-27 | 2017-01-25 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Rotatable nozzle type double-spiral hydraulic ejector and application |
| CN107575188A (en) * | 2017-10-11 | 2018-01-12 | 燕山大学 | The hydraulic ejector of nozzle is changed in pitching |
| CN111465791A (en) * | 2017-10-10 | 2020-07-28 | 奈勒斯芬兰有限公司 | Valves and Closure Members |
-
2016
- 2016-10-27 CN CN201621178079.8U patent/CN206158692U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351617A (en) * | 2016-10-27 | 2017-01-25 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Rotatable nozzle type double-spiral hydraulic ejector and application |
| CN111465791A (en) * | 2017-10-10 | 2020-07-28 | 奈勒斯芬兰有限公司 | Valves and Closure Members |
| CN107575188A (en) * | 2017-10-11 | 2018-01-12 | 燕山大学 | The hydraulic ejector of nozzle is changed in pitching |
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