CN109138907A - Underground complex vibration cementing unit - Google Patents
Underground complex vibration cementing unit Download PDFInfo
- Publication number
- CN109138907A CN109138907A CN201811199495.XA CN201811199495A CN109138907A CN 109138907 A CN109138907 A CN 109138907A CN 201811199495 A CN201811199495 A CN 201811199495A CN 109138907 A CN109138907 A CN 109138907A
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- valve
- central axis
- flowing hole
- complex vibration
- cementing unit
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- 230000000694 effects Effects 0.000 abstract description 14
- 239000004568 cement Substances 0.000 description 42
- 239000002002 slurry Substances 0.000 description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 19
- 238000000034 method Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 6
- 230000035485 pulse pressure Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 230000000644 propagated effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 208000000059 Dyspnea Diseases 0.000 description 1
- 206010013975 Dyspnoeas Diseases 0.000 description 1
- 206010018092 Generalised oedema Diseases 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 208000024783 anasarca Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000010358 mechanical oscillation Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 208000013220 shortness of breath Diseases 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B28/00—Vibration generating arrangements for boreholes or wells, e.g. for stimulating production
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The present invention relates to underground complex vibration cementing unit, including outer housing, determine valve, dynamic valve, central axis, turbine, eccentric module and lower valve；Determine valve and lower valve is fixed inside outer housing, determines valve and be provided with to determine valve flowing hole, lower valve is provided with flowing hole；Central axis setting is being determined between valve and lower valve, and vertical with the center of lower valve is rotatablely connected；Dynamic valve is fixed at the top of central axis, and dynamic valve is provided with dynamic valve flowing hole；Turbine and eccentric module are fixedly connected with central axis.The present invention can generate axially and radially complex vibration, better effect of cementing the well, and pressure drop is low, structure is simple and convenient to operate, low in cost, safe and reliable etc..
Description
Technical field
The invention belongs to underground complex vibration cementing units to relate generally to oil and gas well drilling, CBM Drilling, geology
The industry fields such as exploration, mine probing.
Background technique
During oil and gas well drilling, geological prospecting, mine are drilled, after the completion of drillng operation, in order to ensure
The stability of wellbore, it is necessary to tripping in casing string, and inject cement slurry in the annular space between casing string and the borehole wall, when theing cement solidifies
Afterwards, it will be able to which casing string is fixed in the wellbore, this process is referred to as to cement the well.Conventional cementing method is mainly first by casing string
Then G.I.H injects cement slurry out of casing string, cement slurry flows out after reaching casing string bottom, passes through casing string and well
Ground is returned on annular space between wall, and the mud between casing string and the borehole wall is replaced into out wellbore at the same time, finally waits water
Mud solidification, completes well cementing operation.Since the borehole wall is irregular, casing string is not the shadow of factors completely placed in the middle etc. in the wellbore
It rings, not only reduces the upward velocity of cement slurry, but also also reduce the effect that cement slurry replaces mud, cause casing string and the borehole wall
Between annular clearance there are part mud to replace, influence cementing quality.Research shows injecting with field practice both at home and abroad
During cement slurry, if casing string can be vibrated or be rotated, it will be able to improve the flow behavior of cement slurry, to substantially mention
Height replaces the efficiency of mud, enables cement slurry well into the annular clearance between casing string and the borehole wall, further increases
Cementing quality, main method are divided into two kinds, and one is casing string rotary process, this method is benefit while injecting cement slurry
It is rotated with ground mechanical energy actuating sleeve tubing string, flowing of the cement slurry between casing string and the borehole wall in annular space can be effectively improved
Property, it obtains optimal mud and replaces effect, live using effect highly significant, cementing quality is higher, but use cost is high, energy consumption
Greatly, technical requirements are high, limit use scope；Another kind is to install vibration generating arrangement in casing string bottom, utilizes cement
It generates vibration to the flow driving of slurry, and vibration wave is propagated along casing string, and then cement slurry is caused to vibrate, and reaching improves cement slurry stream
Dynamic characteristic, the purpose for improving mud replacement efficiency, field application also achieve certain effect.But existing vibration both at home and abroad occurs
Device mainly generates radial vibration, i.e., eccentric module rotation when cement slurry flows inside driving vibration generating arrangement, due to
Mass eccentricity make vibration generating arrangement generate radial vibration, not only vibrational energy is lower for this vibration mode, and propagate away from
From limited, the technical requirements of scene well cementation cannot be fully met.
With being continuously increased for oil gas well depth, formation condition is more complicated and changeable, complex structural well quantity increases, casing
Column length also increases as, and in order to ensure the Efficient Development of Deep Oil And Gas Exploration resource, cementing quality is required also therewith increasingly
It is high.Relatively fewer for the device research for improving cementing quality both at home and abroad, foreign technology is relatively advanced, but use cost is high,
The relatively external gap of domestic technique is larger, is not able to satisfy the requirement of deep-well, ultradeep well, complex structural well cementing technology.
In addition, also there are many patent documents to report about cementing unit, and such as: Chinese patent document CN108590572A is public
A kind of negative pulse pressure wave generator has been opened, a kind of cementing unit containing negative pulse pressure wave generator is additionally provided.Occur
Device includes pedestal, pressure wave generating mechanism and the first outer cylinder, and pedestal is equipped with power part, and power part and pressure wave generating mechanism connect
It connects, the first outer cylinder is set on the outside of power part and pressure wave generating mechanism and is fixedly connected with pedestal；Pressure wave generating mechanism with
Sealing element is equipped between first outer cylinder；Pressure wave generating mechanism includes top cover, bottom plate and the second outer cylinder, outside top cover, bottom plate and second
Cylinder three seals to form a pneumatics cabin, and the second outer tube side wall is equipped with first through hole and sealing axis, and sealing axis is close by first through hole
Envelope；Power part can driving pressure wave generating mechanism be axially moved along the first outer cylinder, when pneumatics freight space is outside the first outer cylinder,
In pneumatics cabin under the action of internal and external pressure difference, sealing axis can be moved into the second outer cylinder, to open pneumatics cabin.Chinese patent
File CN207660572U discloses a kind of mechanical vibration cementing tool, including is rushed shell, vibration hammer, opens vibration body, transmission
Axis, turbine motor, spring interstage sleeve, elastic element and idler wheel.Turbine motor opens vibration body rotation by transmission shaft driving, opens in vibration body
The cam pair at end pushes vibration to hammer axially reciprocating into shape, vibration hammer is simultaneously by elastic element pressure and water attack section by idler wheel
Flowing pressure, when cam pair pushes vibration hammer to move upwards, energy accumulation is hammered in vibration into shape, in cam paramutation, vibration hammer release
Energy impacts downwards shell, and impact generation energy is big, and propagation distance is remote, can effectively improve cement replacement efficiency and well cementation matter
Amount, can be used for straight well, extended reach well, directional well and horizontal well vibration cementing, and apparatus structure is simple, and operating is reliable, construction risk
It is small.
But above-mentioned cementing unit is only capable of vibrating in one direction, and complex vibration can not occur, and influences effect of cementing the well.
Therefore, it is badly in need of developing a kind of casing string vibration generating arrangement, under the premise of not changing existing well shaft fixing technology, generates axial direction and diameter
To complex vibration, while also having the characteristics that lower, of simple structure and low cost, the easy to maintain underground complex vibration of pressure drop
Cementing unit.
Summary of the invention
In view of the deficiencies of the prior art, in order to further increase the cementing quality of deep-well, ultradeep well, complex structural well,
Under the premise of not changing domestic existing well shaft fixing technology and relevant equipment, casing string axial direction and diameter can be converted by surging for cement slurry
To complex vibration, and then cement slurry is caused to resonate, promotes lex primaria of the cement slurry between casing string and the borehole wall in annular space；This
Invention provides underground complex vibration cementing unit, and the construction suitable for oil and gas well drilling, geological prospecting, mine probing etc. is existing
?.
Term explanation:
Water hammer effect: water hammer effect refers to that inside water pipe, inside pipe wall is smooth, and water flowing is freely.When open valve is prominent
It so closes, water flow can generate a pressure to valve and tube wall, mainly valve.Since tube wall is smooth, subsequent water flow is in inertia
Under the action of, it is rapidly reached maximum, and generate destruction, here it is " water hammer effects " in hydro science, that is, the anasarca with shortness of breath
Hammer.On the contrary, the valve closed can also generate water hammer, be negative water hammer after throwing open.
The technical solution adopted by the invention is as follows:
A kind of underground complex vibration cementing unit, including outer housing, determine valve, dynamic valve, central axis, turbine, eccentric module and
Lower valve；
It is described to determine valve and lower valve is fixed inside outer housing, it is described to determine valve and be provided with to determine valve flowing hole, it is described
Lower valve be provided with flowing hole；
The described central axis setting is being determined between valve and lower valve, and vertical with the center of lower valve is rotatablely connected；Described
Dynamic valve is fixed at the top of central axis, and the dynamic valve is provided with dynamic valve flowing hole；The turbine and eccentric mandrel
Block is fixedly connected with central axis.
, according to the invention it is preferred to, determine the valve flowing hole and dynamic valve flowing hole is eccentric structure.That is: determine valve overcurrent
The center of circle of Kong Yudong valve flowing hole is not overlapped with central axis, there is certain deviation；And two holes are not exclusively overlapped.This set
Purpose be, when two flowing holes are formed by area of passage and constantly change, so that the flow velocity of cement slurry changes, to cover
" water hammer " effect can occur in tubing string, with the continuous rotation of dynamic valve, " water hammer " of pulsating nature, which acts on, to be determined to generate on valve
Axial pulse pressure, in underground, complex vibration cementing unit generates axial vibration wave.
, according to the invention it is preferred to, the turbine includes stator and rotor, and the stator is fixed at outer housing
On, the rotor fixed setting is on center shaft；
It is further preferred that the turbine is made of multiple groups stator and rotor.Its revolving speed can be required according to cementing design
Adjustment in real time.
, according to the invention it is preferred to, friction-proof piece is respectively arranged on the contact surface for determining valve and dynamic valve.
, according to the invention it is preferred to, the eccentric module is fixed at central axis lower part.Eccentric mandrel stock material and shape
Shape can carry out multiple choices, can be rule or irregular shape, preference rule shape, such as: square, cuboid etc.；Material
Matter can be metal material, the preferably materials such as iron, steel.The purpose that eccentric module is arranged is rotation with central axis, eccentric module
Also it can rotate with it, due to mass eccentricity, when rotation generates centrifugal force, so that underground complex vibration cementing unit generates radial vibration
Dynamic wave.
, according to the invention it is preferred to, the flowing hole be it is multiple, preferably 2-16, be uniformly arranged around lower valve.
Underground complex vibration cementing unit action principle of the present invention and use process is as follows:
When cementing operation, underground complex vibration cementing unit is mounted on the lower end of casing string, with casing string together tripping in
Into well, when the cement slurry of injection enters underground complex vibration cementing unit, by determining valve flowing hole, dynamic valve flowing hole reaches
Turbine drives turbine high speed rotation, on center shaft due to dynamic valve installation, but also dynamic valve is opposite when turbine high speed rotation
Start high-speed rotation in determining valve, determining valve flowing hole and dynamic valve flowing hole is eccentric structure, therefore two flowing holes were formed by
Flow area be it is continually changing, the flow velocity that the change of area of passage allows for cement slurry changes, according to principles of hydrodynamics
It is found that " water hammer " effect will occur in casing string when flow rate of liquid changes, with the continuous rotation of dynamic valve, pulsating nature
" water hammer ", which acts on, determines to generate axial pulse pressure on valve, and underground complex vibration cementing unit generates axial vibration wave, i.e.,
Longitudinal wave, since underground complex vibration cementing unit is connect with casing string again, shear wave energy will be along casing string to upload
It broadcasts, generates axial vibration so as to cause casing string.
Due to being equipped with eccentric module on central axis, with the rotation of central axis, eccentric module can also be rotated with it, due to
Mass eccentricity, when rotation, generate centrifugal force, this allows for underground complex vibration cementing unit and generates radial vibration wave, i.e. shear wave,
And upwardly propagated along casing string, longitudinal wave and shear wave superposition allow for casing string and complex vibration integrally occur, when vibration frequency and set
When the intrinsic frequency of tubing string is close, casing string will be caused to resonate, vibrational energy is maximum at this time, and the vibration of casing string can cause again
Cement slurry vibration, it is this to have vibrational energy while backflowing speed on improving the cement slurry between casing string and the borehole wall in annular space
The cement slurry of amount can be efficiently entering the small―gap suture between casing string and the borehole wall again, and this small―gap suture is since the borehole wall is irregular, set
What tubing string was not centrally formed, so that the cement slurry between casing string and the borehole wall more enriches, thereby further ensure that well cementation matter
Amount, cement slurry reaches shaft bottom after turbine, by the flowing hole in lower valve, and enters on the annular space between casing string and the borehole wall
Return to well head.
Beneficial effects of the present invention are as follows:
Underground complex vibration cementing unit can convert the hydraulic power of cement slurry to the axially and radially compound of casing string
Mechanical oscillation, and cause cement slurry resonance, not only improve cement slurry it is quick on return, and be conducive to cement slurry well into casing string
Gap between the borehole wall, the cement slurry between sprue bushing column and the borehole wall in annular space is more substantial, after cement slurry sets, is more conducive to
Improve the cementing quality of casing string.Conventional same type tool is mainly based on radial vibration, and underground complex vibration cementing unit
Axially and radially complex vibration can be generated, better effect of cementing the well, and pressure drop is low, structure is simple and convenient to operate, at low cost
It is honest and clean, safe and reliable etc..
Live downhole testing the result shows that, in the well cementation of the deep-well in the area such as Sichuan, Xinjiang, ultradeep well, complex structural well
In the process using after underground complex vibration cementing unit, the excellent rate of cementing quality averagely improves 75%, and complete design standard reaches
It having arrived on the basis of existing weaponry and equipment at home and technology, low cost, high efficiency complete the purpose of complex structural well cementing operation,
For improving China's deep-well, ultradeep well, complex structural well cementing technology level and competitiveness in the international market, provide strong
Technical support.
Meanwhile underground complex vibration cementing unit also has the characteristics that structure design simple, reliable performance, easy to operate.
Detailed description of the invention
Fig. 1 is underground complex vibration cementing unit structural schematic diagram of the invention.
Fig. 2 is underground complex vibration cementing unit Section A-A schematic diagram of the invention.
Fig. 3 is underground complex vibration cementing unit section B-B schematic diagram of the invention.
In figure: 1- outer housing, 2- determine valve, 3- moves valve, 4- central axis, 5- turbine, 6- bias module, 7- lower valve, 8- overcurrent
Valve flowing hole is determined in hole, 9-, 10- moves valve flowing hole.
Specific embodiment
Carry out the present invention is described in detail below by specific embodiment and in conjunction with attached drawing, but not limited to this.
Embodiment 1
As shown in Figure 1, underground complex vibration cementing unit, including outer housing 1, determine valve 2, dynamic valve 3, central axis 4, turbine 5,
Eccentric module 6 and lower valve 7；
It is described to determine valve 2 and lower valve 7 is fixed inside outer housing 1, it is described to determine valve 2 and be provided with to determine valve flowing hole 9,
The lower valve 7 is provided with flowing hole 8；
The described setting of central axis 4 is being determined between valve 2 and lower valve 7, and vertical with the center of lower valve 7 is rotatablely connected；
The dynamic valve 3 is fixed at the top of central axis 4, and the dynamic valve 3 is provided with dynamic valve flowing hole 10；
The turbine 5 and eccentric module 6 are fixedly connected with central axis 4.
Determine the valve flowing hole 9 and dynamic valve flowing hole 10 is eccentric structure.That is: determine valve flowing hole 9 and dynamic valve flowing hole
10 center of circle is not overlapped with central axis 4, has certain deviation, and two holes are not exclusively overlapped.The purpose of this set is,
Two flowing holes are formed by area of passage when constantly changing, so that the flow velocity of cement slurry changes, can send out in casing string
Raw " water hammer " effect, with the continuous rotation of dynamic valve, " water hammer " of pulsating nature, which acts on, determines that axial pulse pressure will be generated on valve
Power, in underground, complex vibration cementing unit generates axial vibration wave.
The turbine 5 includes multiple groups stator and rotor, and the stator is fixed on outer housing 1, and described turns
Son is fixed on central axis 4.
Embodiment 2
As described in Example 1, unlike:
Friction-proof piece is respectively arranged on the contact surface for determining valve 2 and dynamic valve 3.
Embodiment 3
As described in Example 1, unlike:
The eccentric module 6 is fixed at 4 lower part of central axis.Eccentric 6 material of module and shape can carry out a variety of choosings
It selects, preferably cuboid regular shape；The preferred stainless steel material of material.The purpose that eccentric module 6 is arranged is rotation with central axis 4
Turn, eccentric module 6 can also rotate with it, and due to mass eccentricity, when rotation generates centrifugal force, so that underground complex vibration well cementation dress
It sets and generates radial vibration wave.
The flowing hole 8 is 2-16, is uniformly arranged around lower valve 7.
Complex vibration cementing unit working process and principle in underground are as follows in the present invention:
In cementing operation, underground complex vibration cementing unit is mounted on the lower end of casing string, as casing string one removes
Enter into well, when the cement slurry of injection enters underground complex vibration cementing unit, by determining valve flowing hole 9, dynamic valve flowing hole
10 reach turbine 5, drive 5 high speed rotation of turbine, since dynamic valve 3 is mounted on central axis 4, when 5 high speed rotation of turbine
So that dynamic valve 3 starts high-speed rotation relative to valve 2 is determined, determine valve flowing hole 9 and dynamic valve flowing hole 10 is eccentric structure, therefore two
Flowing hole be formed by area of passage be it is continually changing, the flow velocity that the change of area of passage allows for cement slurry changes,
According to principles of hydrodynamics it is found that when flow rate of liquid changes, " water hammer " effect will occur in casing string, with dynamic valve 3
Constantly rotation, " water hammer " of pulsating nature, which acts on, determines to generate axial pulse pressure on valve 3, underground complex vibration cementing unit
Axial vibration wave, i.e. longitudinal wave are generated, since underground complex vibration cementing unit is connect with casing string again, shear wave energy will
It is upwardly propagated along casing string, generates axial vibration so as to cause casing string；Due to being equipped with eccentric module 6 on central axis 4, with
The rotation of central axis 4, eccentric module 6 can also rotate with it, and due to mass eccentricity, when rotation generates centrifugal force, this is allowed for
Underground complex vibration cementing unit generates radial vibration wave, i.e. shear wave, and upwardly propagates along casing string, and longitudinal wave and shear wave superposition are just
So that complex vibration integrally occurs for casing string, when the intrinsic frequency of vibration frequency and casing string is close, casing string will be caused
Resonance, vibrational energy is maximum at this time, and the vibration of casing string can cause cement slurry vibration again, is improving ring between casing string and the borehole wall
While speed of backflowing on cement slurry in sky, this cement slurry with vibrational energy can be efficiently entering again casing string and the borehole wall it
Between small―gap suture thereby further ensured that cementing quality, cement so that cement slurry between casing string and the borehole wall more enriches
Slurry reaches shaft bottom after turbine 5, by the flowing hole 8 in lower valve 7, and returns on the annular space entered between casing string and the borehole wall
Well head.
Claims (7)
1. a kind of underground complex vibration cementing unit, which is characterized in that the device include outer housing, determine valve, dynamic valve, central axis,
Turbine, eccentric module and lower valve；
It is described to determine valve and lower valve is fixed inside outer housing, it is described to determine valve and be provided with to determine valve flowing hole, under described
Valve is provided with flowing hole；
The described central axis setting is being determined between valve and lower valve, and vertical with the center of lower valve is rotatablely connected；The dynamic valve
It is fixed at the top of central axis, and the dynamic valve is provided with dynamic valve flowing hole；The turbine and eccentric module with
Central axis is fixedly connected.
2. complex vibration cementing unit in underground according to claim 1, which is characterized in that described determines valve flowing hole and move
Valve flowing hole is eccentric structure.
3. complex vibration cementing unit in underground according to claim 1, which is characterized in that the turbine include stator and
Rotor, the stator are fixed on outer housing, and the rotor fixed setting is on center shaft.
4. complex vibration cementing unit in underground according to claim 3, which is characterized in that the turbine is by multiple groups stator
It is formed with rotor.
5. complex vibration cementing unit in underground according to claim 1, which is characterized in that described to determine connecing for valve and dynamic valve
Friction-proof piece is respectively arranged in contacting surface.
6. complex vibration cementing unit in underground according to claim 1, which is characterized in that the eccentric module fixation is set
It sets in central axis lower part.
7. complex vibration cementing unit in underground according to claim 1, which is characterized in that the flowing hole be it is multiple,
It is uniformly arranged around lower valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811199495.XA CN109138907A (en) | 2018-10-15 | 2018-10-15 | Underground complex vibration cementing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811199495.XA CN109138907A (en) | 2018-10-15 | 2018-10-15 | Underground complex vibration cementing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109138907A true CN109138907A (en) | 2019-01-04 |
Family
ID=64811843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811199495.XA Pending CN109138907A (en) | 2018-10-15 | 2018-10-15 | Underground complex vibration cementing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109138907A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111364945A (en) * | 2020-03-16 | 2020-07-03 | 冒俊 | Natural gas exploitation well hole reinforcing construction method |
| CN111769381A (en) * | 2020-07-14 | 2020-10-13 | 孙亚林 | Multilayer rod type grounding system of lightning arrester |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU1764345C (en) * | 1990-02-21 | 1994-08-15 | БашНИПИнефть | Hydrodynamic vibrator |
| CN203742480U (en) * | 2014-01-29 | 2014-07-30 | 中国石油集团西部钻探工程有限公司 | Clamping-preventing casing guide device |
| CN205778655U (en) * | 2016-06-21 | 2016-12-07 | 中国石油天然气集团公司 | Down-hole screw motor two-way oscillation cementing tool |
| CN206903615U (en) * | 2017-05-31 | 2018-01-19 | 中国石油集团西部钻探工程有限公司 | Well cementation vibrating device |
-
2018
- 2018-10-15 CN CN201811199495.XA patent/CN109138907A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU1764345C (en) * | 1990-02-21 | 1994-08-15 | БашНИПИнефть | Hydrodynamic vibrator |
| CN203742480U (en) * | 2014-01-29 | 2014-07-30 | 中国石油集团西部钻探工程有限公司 | Clamping-preventing casing guide device |
| CN205778655U (en) * | 2016-06-21 | 2016-12-07 | 中国石油天然气集团公司 | Down-hole screw motor two-way oscillation cementing tool |
| CN206903615U (en) * | 2017-05-31 | 2018-01-19 | 中国石油集团西部钻探工程有限公司 | Well cementation vibrating device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111364945A (en) * | 2020-03-16 | 2020-07-03 | 冒俊 | Natural gas exploitation well hole reinforcing construction method |
| CN111364945B (en) * | 2020-03-16 | 2021-04-02 | 杭州佑滨科技有限公司 | Natural gas exploitation well hole reinforcing construction method |
| CN111769381A (en) * | 2020-07-14 | 2020-10-13 | 孙亚林 | Multilayer rod type grounding system of lightning arrester |
| CN111769381B (en) * | 2020-07-14 | 2021-11-09 | 广西电网有限责任公司钦州供电局 | Multilayer rod type grounding system of lightning arrester |
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Application publication date: 20190104 |
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| RJ01 | Rejection of invention patent application after publication |