CN205778655U - Down-hole screw motor two-way oscillation cementing tool - Google Patents
Down-hole screw motor two-way oscillation cementing tool Download PDFInfo
- Publication number
- CN205778655U CN205778655U CN201620615065.1U CN201620615065U CN205778655U CN 205778655 U CN205778655 U CN 205778655U CN 201620615065 U CN201620615065 U CN 201620615065U CN 205778655 U CN205778655 U CN 205778655U
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- motor
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- rotor
- screw motor
- cementing tool
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Abstract
This utility model provides a kind of down-hole of proposition screw motor two-way oscillation cementing tool.Described down-hole screw motor two-way oscillation cementing tool includes: top connection；The baffle plate of annular, is connected to the lower section of described top connection；Motor assembly, is connected to the lower section of described baffle plate；Axially throttle valve component, is connected to the lower section of described motor assembly；Lower contact, is connected to the lower section of described axial throttle valve component.In down-hole, well cementation can produce two-way oscillation to this utility model, changes vibration level and frequency of vibration by adjusting structural parameters, makes the cement mortar under different operating mode produce maximally effective vibration, thus is effectively improved cementing quality.
Description
Technical field
This utility model relates to Oil-Gas Well Engineering field, is specifically related to a kind of down-hole screw motor two-way oscillation well cementation work
Tool.
Background technology
In well cementing process, vibration cement mortar is one of effective technology means improving cementing quality.Existing vibration is solid
Well tool can be divided into waterpower pulse formula, mechanical type, magnetostriction type, piezoelectric ceramic type, audio frequency formula, surface annulus by action principle
The vibration cementing instruments such as waterpower or air pulse formula, wherein waterpower pulse formula vibration cementing instrument is most widely used.
Waterpower pulse formula vibration cementing instrument only produces axial vibration, and vibration amplitude is uncontrollable.Turbine vibration is cemented the well
Mainly producing radial vibration, eccentric block structure is single, poor controllability.
In sum, prior art there is problems in that, waterpower pulse formula vibration cementing instrument only produces axial vibration,
And vibration amplitude is uncontrollable.
Utility model content
This utility model provides a kind of down-hole screw motor two-way oscillation cementing tool, solid to solve the vibration of waterpower pulse formula
Well tool only produces axial vibration, and the uncontrollable problem of vibration amplitude.
To this end, the utility model proposes a kind of down-hole screw motor two-way oscillation cementing tool, described down-hole screw motor
Two-way oscillation cementing tool includes:
Top connection；
The baffle plate of annular, is connected to the lower section of described top connection；
Motor assembly, is connected to the lower section of described baffle plate；
Axially throttle valve component, is connected to the lower section of described motor assembly；
Lower contact, is connected to the lower section of described axial throttle valve component；Wherein,
Described motor assembly includes: stator and rotor, and described stator is tubulose, and rotor is put down at the tubular-type intracavity of stator
Face planetary motion, produces centrifugal intertia force, thus causes the oscillation crosswise of instrument；
Described axial throttle valve component includes: dynamic valve, upper jacket, quiet valve, lower jacket and supported joint；
Upper jacket is fixed on the lower end of rotor；
Dynamic valve is fixed between upper jacket and rotor；Dynamic valve does plane planetary motion together along with rotor；
Quiet valve is fixed between supported joint and lower jacket；
Supported joint upper end is fixing with lower jacket to be connected；Supported joint lower end is fixed on lower contact upper end.
Further, described motor assembly is single head motor.
Further, described motor assembly is bull motor.
Further, described motor assembly is screw motor.
Further, described stator outer diameter 172mm, between top and the bottom of described lower contact of described top connection away from
From for 2930mm.
Further, described rotor middle and upper part is divided is a steel screw rod.
Further, rotor bottom is divided into guide shoe shape termination, termination inner hollow, top, termination and turned on outside.
Further, described stator is a steel pipe having rubber bushing in inwall sulfuration.
Further, described stator is equal with the external diameter of described top connection.
Further, it is provided with sealing ring between described quiet valve and described lower jacket.
Further, the frequency of vibration of described down-hole screw motor two-way oscillation cementing tool changes by adjusting screw rod horse
The revolution rotating speed reached realizes, and the revolution rotating speed of screw motor is:
In formula:
nPublicThe revolution rotating speed of screw motor
Q flows through the flow of motor, i.e. discharge capacity；
AGThe area of passage of motor；
N rotor head number；
H stator pitch.
Further, the frequency of vibration of described down-hole screw motor two-way oscillation cementing tool changes by adjusting screw rod horse
The rotor head number N reached realizes, and the rotor centrifugal intertia force of motor assembly is:
In formula:
The rotor centrifugal intertia force of Fg motor assembly；
The revolution angular velocity of ω male rotor；
M rotor quality；
E motor eccentricity；
π pi.
Further, described stator outer diameter 172mm, between top and the bottom of described lower contact of described top connection away from
From for 2930mm.
Further, described stator is equal with the external diameter of described top connection.
Further, described rotor middle and upper part is divided is the root surface steel screw rod that is coated with high-abrasive material.
Further, rotor bottom is divided into guide shoe shape termination, termination inner hollow, top, termination and turned on outside.
Further, described stator is a steel pipe having rubber bushing in inwall sulfuration.
Down-hole of the present utility model screw motor two-way oscillation cementing tool, it is possible to produce two-way oscillation, tied by adjustment
Structure parameter change vibration level and frequency of vibration, make the cement mortar under different operating mode produce maximally effective vibration, thus effectively carry
High cementing quality.Therefore, this utility model solves waterpower pulse formula vibration cementing instrument and only produces axial vibration, and vibration width
It is worth uncontrollable problem.And then, this utility model also solves turbine vibration well cementation and mainly produces radial vibration, eccentric agllutination
Structure is single, the problem of poor controllability.
Accompanying drawing explanation
Fig. 1 is the structural representation of the down-hole screw motor two-way oscillation cementing tool of this utility model embodiment；
Fig. 2 is cross-section structure at A-A in Fig. 1.
Drawing reference numeral illustrates:
1-top connection,
2-baffle plate,
3-stator,
4-rotor,
5-moves valve,
6-upper jacket,
7-sealing ring,
The quiet valve of 8-,
9-lower jacket,
10-supported joint,
11-lower contact
20-outer tube
Detailed description of the invention
In order to technical characteristic of the present utility model, purpose and effect are more clearly understood from, now comparison accompanying drawing explanation
This utility model.
As depicted in figs. 1 and 2, the down-hole screw motor two-way oscillation cementing tool of this utility model embodiment includes:
Top connection 1, plays interconnection function；
The baffle plate 2 of annular, is connected to the lower section of described top connection 1, plays the effect to motor assembly location；
Motor assembly, is connected to the lower section of described baffle plate；
Axially throttle valve component, is connected to the lower section of described motor assembly；
Lower contact 11, is connected to the lower section of described axial throttle valve component；Wherein, motor assembly and axial throttle valve component
It is arranged in outer tube 20；Outer tube 20 is connected between top connection 1 and lower contact 11, outer tube 20 and top connection 1 and lower contact
The external diameter of 11 is concordant；
Described motor assembly includes: stator 3 and rotor 4, as in figure 2 it is shown, described stator 3 is tubulose, rotor 4 middle and upper part is divided
Being the root surface steel screw rod that is coated with high-abrasive material, rotor 4 bottom is divided into guide shoe shape termination, termination inner hollow, termination
Top and turned on outside；Stator 3 is a steel pipe having rubber bushing in inwall sulfuration, to have preferable anticorrosion effect,
Rubber bushing endoporus is the die cavity of a spiral camber；Rotor 4 makees plane planetary motion at the tubular-type intracavity of stator 3, produces
Centrifugal intertia force, thus cause the oscillation crosswise of instrument；
Described axial throttle valve component includes: dynamic valve 5, upper jacket 6, quiet valve 8, lower jacket 9 and supported joint 10 (also referred to as prop up
Support short circuit)；
Upper jacket 6 is fixed on the lower end of rotor 4；Such as, upper jacket is threaded connection the lower end being fixed on rotor；
Dynamic valve 5 is fixed between upper jacket 6 and rotor 4；Dynamic valve 5 does plane planetary motion together along with rotor 4；
Quiet valve 8 is fixed between supported joint 10 and lower jacket 9；By sealing between quiet valve 8 external diameter and lower jacket 9 internal diameter
Circle 7 sealing；
Supported joint 10 upper end is such as threadably secured with lower jacket 9 and is connected；Supported joint 10 lower end is by screw thread even
Connect and be fixed on lower contact 1 upper end.Traverse motion by dynamic valve 5, causes cement mortar to flow through the horizontal stroke of axial throttle valve component
Sectional area mechanical periodicity, in turn results in the cement mortar pressure cycle change flowed out axial throttle valve component lower end, ultimately causes
The axial vibration of cement mortar.
In injecting cement mortar technical process, water under high pressure mud drives motor assembly to produce rotation, and rotor 4 is in stator 3 type
Intracavity makees plane planetary motion, produces centrifugal intertia force, thus causes the oscillation crosswise of instrument.Rotor 4 drives axial choke valve
Continuously adjusting the area of passage of cement mortar, the consecutive variations of area of passage produces water hammer, in turn results in axially joint
The cement mortar pressure cycle change that stream valve module lower end is flowed out, ultimately causes the axial vibration of cement mortar.Therefore, this practicality is new
The down-hole screw motor two-way oscillation cementing tool of type, it is possible to producing two-way oscillation, this utility model solves waterpower pulse formula
Vibration cementing instrument only produces axial vibration, and the uncontrollable problem of vibration amplitude.And then, this utility model also solves whirlpool
Wheel vibration cementing mainly produces radial vibration, and eccentric block structure is single, the problem of poor controllability.
Further, according to rotor head number, described motor assembly is single head motor or bull motor.Single head motor, N=1；
Bull motor, N >=2, wherein, N is rotor head number.Employing single head motor, low cost, simple in construction, easy for installation.Use bull
Motor, efficiency is high.
Further, described single head motor or bull motor are screw motor, in such manner, it is possible to use underground vibrating well cementation
Need.
Further, the frequency of vibration of described down-hole screw motor two-way oscillation cementing tool changes by adjusting screw rod horse
The revolution rotating speed reached realizes, and the revolution rotating speed of screw motor is:
In formula:
nPublicThe revolution rotating speed of screw motor
Q flows through the flow of motor, i.e. discharge capacity；
AGThe area of passage of motor；
N rotor head number；
H stator pitch.
Screw motor identical to nominal outside diameter, that pitch h is identical, under same displacement Q, number N is the biggest for its rotor head, screw rod
The revolution rotating speed n of motorPublicThe lowest, the oscillation crosswise frequency of instrument also can be the lowest；In like manner, due to dynamic in axial throttle valve component
Valve produces plane planetary motion together along with rotor, and the axial vibration frequency of cement mortar also can be the lowest；Therefore, motor assembly rotating speed
Can be changed by the adjustment of structural parameters, rotating speed changes the change that will result in instrument frequency, it is possible to achieve two-way oscillation
Adjust, make the cement mortar under different operating mode produce maximally effective vibration, thus be effectively improved cementing quality.
Further, the frequency of vibration of described down-hole screw motor two-way oscillation cementing tool changes by adjusting screw rod horse
The rotor head number N reached realizes, and the rotor centrifugal intertia force of motor assembly is:
In formula:
The rotor centrifugal intertia force of Fg motor assembly；
ωPublicThe revolution angular velocity of rotor；
M rotor quality；
E motor eccentricity；
Q flows through the flow of motor, i.e. discharge capacity；
AGThe area of passage of motor；
N rotor head number；
H stator pitch；
π pi.
Screw motor identical to nominal outside diameter, that pitch h is identical, under same displacement Q, number N is the biggest for its rotor head, rotor from
Heart inertia force FgThe least, the oscillation crosswise amplitude of instrument also can be the least；Therefore, it can make the cement mortar under different operating mode produce
Maximally effective vibration, thus it is effectively improved cementing quality.
Further, described stator outer diameter 172mm, between top and the bottom of described lower contact of described top connection away from
From for 2930mm.This is dimensioned for underground vibrating well cementation, is suitable for stator, the installation cooperation of rotor and reaches the most two-way
Vibrating effect.
Further, described stator is equal with the external diameter of described top connection, to be adapted to fit connection and down-hole screw rod horse
Reach the concordant of two-way oscillation cementing tool entirety.
This utility model also proposes a kind of underground vibrating cementing method, uses that foregoing down-hole screw motor is two-way to shake
Dynamic cementing tool, described underground vibrating cementing method includes: traverse motion by dynamic valve, causes cement mortar to flow through axially
The cross-sectional area mechanical periodicity of throttle valve component, in turn results in the cement mortar pressure cycle that axial throttle valve component lower end is flowed out
Change, ultimately causes the axial vibration of cement mortar.
Further, described motor assembly includes single head motor or bull motor, and described single head motor or bull motor are equal
For screw motor.
Further, described underground vibrating cementing method also includes: adjusted by the revolution rotating speed of adjusting screw rod motor
The frequency of vibration change of described down-hole screw motor two-way oscillation cementing tool, the revolution rotating speed of screw motor is:
In formula:
nPublicThe revolution rotating speed of screw motor；
Q flows through the flow of motor, i.e. discharge capacity；
AGThe area of passage of motor；
N rotor head number；
H stator pitch.
Further, described underground vibrating cementing method also includes: adjusted by the rotor head number N of adjusting screw rod motor
The frequency of vibration change of described down-hole screw motor two-way oscillation cementing tool, the rotor centrifugal intertia force of motor assembly is:
In formula:
The rotor centrifugal intertia force of Fg motor assembly；
ωPublicThe revolution angular velocity of rotor；
M rotor quality；
E motor eccentricity.
The axial vibration amplitude of above-mentioned axial throttle valve component is relevant with overflow section area, can be by the dynamic valve of regulation and quiet
Overlapping area between valve looks after and guides axial vibration amplitude.Change vibration level and frequency of vibration by adjusting structural parameters, make
Cement mortar under different operating modes produces maximally effective vibration, thus is effectively improved cementing quality.
The use process of one preferred embodiment of this utility model is as follows:
In injecting cement mortar technical process, water under high pressure mud drives motor assembly to produce rotation, and rotor 4 is in stator 3 type
Intracavity makees plane planetary motion, produces centrifugal intertia force, thus causes the oscillation crosswise of instrument.Rotor 4 drives axial choke valve
Continuously adjusting the area of passage of cement mortar, the consecutive variations of area of passage produces water hammer, in turn results in axially joint
The cement mortar pressure cycle change that stream valve module lower end is flowed out, ultimately causes the axial vibration of cement mortar.Motor assembly rotating speed
Can be changed by the adjustment of structural parameters, rotating speed changes the change that will result in instrument frequency.Screw motor revolution rotating speed is:
In formula:
Q flows through the flow of motor, i.e. discharge capacity；
AGThe area of passage of motor；
N rotor head number；
H stator pitch.
Screw motor identical to nominal outside diameter, that pitch h is identical, under same displacement Q, number N is the biggest for its rotor head, screw rod horse
The revolution rotating speed n reachedPublicThe lowest, the oscillation crosswise frequency of instrument also can be the lowest.In like manner, due to valve dynamic in axial throttle valve component
Produce plane planetary motion together along with rotor, the axial vibration frequency of cement mortar also can be the lowest.
The rotor centrifugal intertia force of said motor assembly is:
In formula:
M rotor quality；
E motor eccentricity.
Screw motor identical to nominal outside diameter, that pitch h is identical, under same displacement Q, number N is the biggest for its rotor head, rotor from
Heart inertia force FgThe least, the oscillation crosswise amplitude of instrument also can be the least.
The axial vibration amplitude of above-mentioned axial throttle valve component is relevant with overflow section area, can be by the dynamic valve of regulation and quiet
Overlapping area between valve looks after and guides axial vibration amplitude.Change vibration level and frequency of vibration by adjusting structural parameters, make
Cement mortar under different operating modes produces maximally effective vibration, thus is effectively improved cementing quality.
The foregoing is only the schematic detailed description of the invention of this utility model, be not limited to model of the present utility model
Enclose.Can be mutually combined under conditions of not conflicting for each ingredient of the present utility model, any those skilled in the art,
Equivalent variations done on the premise of without departing from design of the present utility model and principle and amendment, all should belong to this practicality new
The scope of type protection.
Claims (10)
1. a down-hole screw motor two-way oscillation cementing tool, it is characterised in that described down-hole screw motor two-way oscillation is solid
Well tool includes:
Top connection；
The baffle plate of annular, is connected to the lower section of described top connection；
Motor assembly, is connected to the lower section of described baffle plate；
Axially throttle valve component, is connected to the lower section of described motor assembly；
Lower contact, is connected to the lower section of described axial throttle valve component；Wherein,
Described motor assembly includes: stator and rotor, and described stator is tubulose, and rotor makees planar row at the tubular-type intracavity of stator
Luck is moved, and produces centrifugal intertia force, thus causes the oscillation crosswise of instrument；
Described axial throttle valve component includes: dynamic valve, upper jacket, quiet valve, lower jacket and supported joint；
Upper jacket is fixed on the lower end of rotor；
Dynamic valve is fixed between upper jacket and rotor；Dynamic valve does plane planetary motion together along with rotor；
Quiet valve is fixed between supported joint and lower jacket；
Supported joint upper end is fixing with lower jacket to be connected；Supported joint lower end is fixed on lower contact upper end.
2. down-hole as claimed in claim 1 screw motor two-way oscillation cementing tool, it is characterised in that described motor assembly is
Single head motor.
3. down-hole as claimed in claim 1 screw motor two-way oscillation cementing tool, it is characterised in that described motor assembly is
Bull motor.
4. down-hole as claimed in claim 1 screw motor two-way oscillation cementing tool, it is characterised in that described motor assembly is
Screw motor.
5. down-hole as claimed in claim 1 screw motor two-way oscillation cementing tool, it is characterised in that described stator outer diameter
172mm, the distance between top and the bottom of described lower contact of described top connection is 2930mm.
6. down-hole as claimed in claim 1 screw motor two-way oscillation cementing tool, it is characterised in that described rotor middle and upper part
Dividing is a steel screw rod.
7. down-hole as claimed in claim 1 screw motor two-way oscillation cementing tool, it is characterised in that rotor bottom is divided into draws
Shoe-shaped shape termination, termination inner hollow, top, termination and turned on outside.
8. down-hole as claimed in claim 1 screw motor two-way oscillation cementing tool, it is characterised in that described stator is
The steel pipe of rubber bushing is had in inwall sulfuration.
9. down-hole as claimed in claim 1 screw motor two-way oscillation cementing tool, it is characterised in that described stator is with described
The external diameter of top connection is equal.
10. down-hole as claimed in claim 1 screw motor two-way oscillation cementing tool, it is characterised in that described quiet valve and institute
State and between lower jacket, be provided with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620615065.1U CN205778655U (en) | 2016-06-21 | 2016-06-21 | Down-hole screw motor two-way oscillation cementing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620615065.1U CN205778655U (en) | 2016-06-21 | 2016-06-21 | Down-hole screw motor two-way oscillation cementing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205778655U true CN205778655U (en) | 2016-12-07 |
Family
ID=58130175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620615065.1U Withdrawn - After Issue CN205778655U (en) | 2016-06-21 | 2016-06-21 | Down-hole screw motor two-way oscillation cementing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205778655U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937378A (en) * | 2016-06-21 | 2016-09-14 | 中国石油天然气集团公司 | Downhole screw motor two-way vibration cementing tool and method |
| CN107313733A (en) * | 2017-08-29 | 2017-11-03 | 山东胜利石油装备产业技术研究院 | A kind of coiled tubing vane type hydroscillator |
| CN109138907A (en) * | 2018-10-15 | 2019-01-04 | 中国石油大学(华东) | Underground complex vibration cementing unit |
-
2016
- 2016-06-21 CN CN201620615065.1U patent/CN205778655U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937378A (en) * | 2016-06-21 | 2016-09-14 | 中国石油天然气集团公司 | Downhole screw motor two-way vibration cementing tool and method |
| CN105937378B (en) * | 2016-06-21 | 2019-12-10 | 中国石油天然气集团有限公司 | Downhole screw motor bidirectional vibration cementing tool and method |
| CN107313733A (en) * | 2017-08-29 | 2017-11-03 | 山东胜利石油装备产业技术研究院 | A kind of coiled tubing vane type hydroscillator |
| CN107313733B (en) * | 2017-08-29 | 2023-07-25 | 山东胜利石油装备产业技术研究院 | Vane type hydraulic oscillator for coiled tubing |
| CN109138907A (en) * | 2018-10-15 | 2019-01-04 | 中国石油大学(华东) | Underground complex vibration cementing unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Co-patentee after: CNPC ENGINEERING TECHNOLOGY R & D Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Address before: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Co-patentee before: CNPC Drilling Engineering Technology Research Institute Co.,Ltd. Patentee before: China National Petroleum Corp. Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Co-patentee after: CNPC Drilling Engineering Technology Research Institute Co.,Ltd. Patentee after: China National Petroleum Corp. Address before: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Co-patentee before: DRILLING RESEARCH INSTITUTE OF CHINA NATIONAL PETROLEUM Co. Patentee before: China National Petroleum Corp. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161207 Effective date of abandoning: 20191210 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20161207 Effective date of abandoning: 20191210 |