CN110043185A - A kind of underground screw motor - Google Patents
A kind of underground screw motor Download PDFInfo
- Publication number
- CN110043185A CN110043185A CN201910419343.4A CN201910419343A CN110043185A CN 110043185 A CN110043185 A CN 110043185A CN 201910419343 A CN201910419343 A CN 201910419343A CN 110043185 A CN110043185 A CN 110043185A
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- CN
- China
- Prior art keywords
- cable
- rotor
- screw motor
- matrix
- connection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/04—Electric drives
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
Abstract
A kind of underground screw motor is related to drilling equipment technical field, including top connection, stator case, rotor, drive shaft and lower contact；The lower end of the top connection is connect with the upper end of the stator case, and the rotor is set in the stator case, and the lower end of the rotor drives the lower contact to rotate by the drive shaft；It is equipped with upper contact component in the top connection, is equipped with the first cable in the upper contact component；The second cable is equipped in the rotor, the lower end of second cable is electrically connected with the lower part electric connection in the lower contact, and the upper end of second cable is electrically connected by electrical transmission component with first cable.The underground screw motor of the embodiment of the present application can be communicated and be powered by the instrument of its internal cable and upper part and lower part.
Description
Technical field
This application involves drilling equipment technical fields, and in particular to a kind of underground screw motor.
Background technique
In petroleum exploration and development directional well drilling operation, screw motor, measurement while-drilling instrument, connector for logging while drilling, rotation
Turn guide instrument extensive use.Following several combinations are used when general job: (1) steering tool and groups of motors bench drill
Well；(2) steering tool and logging while drilling apparatus, motor combination drilling well；(3) steering tool, logging while drilling apparatus, rotary steering instrument
Device combines drilling well.In order to effectively improve drilling efficiency, existing drilling technology uses a kind of high-power motor, drives measurement while drilling
Instrument, part logging while drilling apparatus, the progress drilling well of rotary steering instrument can be only placed at since motor cannot transmit electric energy and electric signal
The top position of the instrument combination from shaft bottom.This combination causes motor to need to drive steering tool, logging while drilling apparatus, rotation
Guide instrument rotates together, and disadvantage is as follows: (1) motor rotation needs to drive the drill assembly of rotation longer, needs to drive function
Rate is big, thus need to generate biggish pressure drop, it is very unfavorable to drilling well；(2) load that motor drive shaft is born is larger, is easy
Damage；(3) it is limited by motor power, the connector for logging while drilling of part can only be driven, be restricted its application.
Summary of the invention
The embodiment of the application provides a kind of underground screw motor, including top connection, stator case, rotor, drive shaft
And lower contact；The lower end of the top connection is connect with the upper end of the stator case, and the rotor is set in the stator case,
The lower end of the rotor drives the lower contact to rotate by the drive shaft；Upper contact group is equipped in the top connection
Part, the upper contact component is interior to be equipped with the first cable；The second cable, second cable are equipped in the rotor
Lower end be electrically connected with the lower part electric connection in the lower contact, the upper end of second cable passes through electrical transmission component and institute
State the electrical connection of the first cable.
The utility model has the advantages that
The underground screw motor of the embodiment of the present application, internal pass through have cable, and the upper contact group with motor
Part and the electrical connection of lower part electric connection, in this way, the underground screw motor of the embodiment of the present application can pass through its internal cable and its
The instrument of top and lower part is communicated and is powered.In turn, the motor of the embodiment of the present application can be connected to logging while drilling apparatus
Between device and rotary steering instrument, it is more advantageous to the effect and effect for playing motor.
Detailed description of the invention
Attached drawing is used to provide to further understand technical scheme, and constitutes part of specification, with this
The embodiment of application is used to explain the technical solution of the application together, does not constitute the limitation to technical scheme.
Fig. 1 is the top half entirety installation diagram of the underground screw motor of one embodiment of the application；
Fig. 2 is the lower half portion entirety installation diagram of the underground screw motor of one embodiment of the application；
Fig. 3 is the structure chart of both upper contact component and rotor of an embodiment junction in Fig. 1；
Fig. 4 is the structure chart of both upper contact component and rotor of another embodiment junction in Fig. 1；
Appended drawing reference are as follows: 1, upper contact component, 2, top connection, 3, upper flexible shaft, 4, stator case, 5, rotor, 6,
Lower flexible shaft, 7, drive shaft, 8, lower contact, the 9, first matrix, the 10, first cable, 11, primary side transmit circuit, 12, positioning
Pin, 13, outer inductive coupler coils, 14, interior inductive coupler coils, 15, secondary side reception circuit, the 16, second matrix, the 17, second electricity
Cable, 18, bearing, 19, support tube, 20, oiling connector, 21, outer sleeve, 22, inner sleeve, 23, mistake oil clot, 24, intermediate connection
Body, 25, positioning pin, 26, cable jacket, 27, spring, 28, piston, 29, connector sleeve, the 30, first conducting ring, 31, second is conductive
Ring, 32, closed cavity.
Specific embodiment
Further illustrate the technical solution of the application below with reference to the accompanying drawings and specific embodiments.It is understood that
It is that specific embodiment described herein is used only for explaining the application, rather than the restriction to the application.
As depicted in figs. 1 and 2, the embodiment of the application provides a kind of underground screw motor, including top connection 2, stator
Shell 4, rotor 5, drive shaft 7 and lower contact 8；The lower end of the top connection 2 is connect with the upper end of the stator case 4, described
Rotor 5 is set in the stator case 4, and the lower end of the rotor 5 drives the lower contact 8 to rotate by the drive shaft 7；Institute
It states and is equipped with upper contact component 1 in top connection 2, be equipped with the first cable 10 in the upper contact component 1；The rotor
The second cable 17 is equipped in 5, the lower end of second cable 17 is electrically connected with the lower part electric connection in the lower contact 8,
The upper end of second cable 17 is electrically connected by electrical transmission component with first cable 10.
The underground screw motor of the embodiment of the present application, internal pass through have cable, and the upper contact group with motor
Part 1 and the electrical connection of lower part electric connection, in this way, the underground screw motor of the embodiment of the present application can pass through its internal cable and its
The instrument of top and lower part is communicated and is powered.In turn, the motor of the embodiment of the present application can connect in connector for logging while drilling
Between rotary steering instrument, the power supply and communication between rotary steering instrument and connector for logging while drilling are realized.Moreover, the application
The combination drilling well of motor, rotary steering instrument, connector for logging while drilling, measurement while-drilling instrument may be implemented in the motor of embodiment, reaches
To the purpose of efficient drilling well.In addition, more flexible using position of the motor of the embodiment of the present application in drill assembly, motor can be with
Closer to drill bit, so that it consumes power decline.
In the present embodiment, since upper contact component 1 is fixed, and rotor 5 is rotated, and realizes electric energy and signal between the two
The mode of transmission can there are two types of, one is contact conducting slip ring structure, another kind is contactless slip ring inductively
Structure.
As shown in figure 4, by the way of contact conducting slip ring structure, illustratively, the electrical transmission component includes the
One conducting ring 30 and the second conducting ring 31 for being rotatably assorted and contacting with first conducting ring 30, first conducting ring 30 with
First cable 10 is electrically connected, second conducting ring 31 be connected on the rotor 5 and with second cable 17
Upper end electrical connection.Wherein, the face of being rotatably assorted of 31 the two of the first conducting ring 30 and the second conducting ring can be circular conical surface.First
Conducting ring 30 can be connected to upper contact component 1 by connection component, and position is fixed, and the second conducting ring 31 with turn
Son 5 rotates.
As shown in figure 3, the slip ring structure mode coupled using non-contact inductive, illustratively, the electrical transmission component
Including the first matrix 9, the primary side transmit circuit 11 on first matrix 9 and outer inductive coupler coils 13, the second matrix
16, and secondary side reception circuit 15 and interior inductive coupler coils 14 on second matrix 16；The primary side transmitting electricity
Road 11 is electrically connected with first cable 10, and the pair side receives circuit 15 and the upper end of second cable 17 is electrically connected
It connects, the outer inductive coupler coils 13 and interior inductive coupler coils 14 relatively rotate and realize electric signal by electromagnetic coupling mode
Transmission.Primary side transmit circuit 11 and secondary side receive circuit 15 and control outer inductive coupler coils 13 and interior inductive coupler coils respectively
14, by way of electromagnetic coupling, in interior inductive coupler coils 14 and the holding of outer inductive coupler coils 13 relative rotation and not
The transmission of electric energy and signal is realized in the case where contact.Wherein, first matrix 9 can be connected on described by positioning pin 12
Portion's electric connection component 1 or the top connection 2, keep its position fixed, and second matrix 16 is connected to the upper of the rotor 5
End, rotates together with rotor 5.
As shown in figure 4, being additionally provided with support tube 19, the upper contact component 1 in the top connection 2 in the present embodiment
Lower end be tightly connected by the upper end of connector sleeve 29 and the support tube 19, the upper end of the rotor 5 is rotatably supported in described
In support tube 19, a closed cavity 32 is formed at the top of the support tube 19, is equipped with the electrical transmission in the closed cavity 32
Component.Wherein, the upper end of rotor 5 is rotatably supported in the support tube 19 by bearing 18, can be in the closed cavity 32
Hydraulic oil is filled, the first conducting ring 30 for lubricating the electrical transmission component and the second conducting ring 31 and bearing 18 can be played
Effect.
During motor operations, the pressure of the hydraulic oil in the closed cavity 32 can be stepped up, to make confined air
Hydraulic oil and the intracorporal mud of motor shell in chamber 32 remain pressure balance, settable pressure compensation structure.Illustratively,
The upper contact component 1 includes the internal upper contact matrix and outer sleeve 21 for being equipped with first cable 10, institute
Outer sleeve 21 is stated to be connected to the lower part of the upper contact matrix and be formed with upper end between the upper contact matrix
Closed annular space, the lower end of the annular space are connected to the closed cavity 32, are located on the outer sleeve 21 described
The upper end of annular space is equipped with through-hole, and (through-hole is used to make the annular space on 28 top of piston and the inner space of motor shell to connect
Logical, the intracorporal mud of motor shell can enter the annular space on 28 top of piston through the through-hole), the annular space is interior to be equipped with spring
27 and piston 28,28 dynamic sealing of piston be set in the annular space, described 27 one end of spring is fixed, the other end abut
In on the upper side of the piston 28.In this way, with the relative rotation between the first conducting ring 30 and the second conducting ring 31, it is closed
The pressure of hydraulic oil in cavity 32 can be stepped up, and be will push piston 28 and moved up simultaneously compressed spring 27, piston 28 is mobile
During keep dynamic sealing, under the action of 27 pressure of spring, the mud of the upside of piston 28 and the hydraulic oil of downside are acted on
Pressure on about 28 two sides of piston is equal, reaches balance, closed under the double action of dynamic sealing piston 28 and spring 27
The intracorporal mud of hydraulic oil and motor shell inside cavity 32 remains pressure balance, and motor is made to be in a kind of metastable
Working condition.Wherein, the limit position moved down for limiting the piston 28 can be set in the lower end in the annular space
The limited step set, to prevent piston 28 from deviating from the annular space.
The upper contact intrinsic silicon is equipped with the first passing channel and liquid for accommodating first cable 10
Pressure oil passage, the hydraulic oil channel are connected to the oiling being arranged on first passing channel and the upper contact matrix
Hole.In this way, can make to play lubricating action full of hydraulic oil around the first cable 10.Wherein, the hydraulic oil channel is also connected to
The closed cavity 32, the hydraulic oil of the certain pressure injected from the oil filler point are reachable described through the hydraulic oil channel
First passing channel and the closed cavity 32.The oil filler point is blocked after injecting hydraulic oil using plug.
As shown in figure 4, the upper contact component 1 may include upper end connector, it is oiling connector 20, outer sleeve 21, interior
Sleeve 22 and cable jacket 26.The upper end of oiling connector 20 is sealedly attached to the lower end of end connector, and the upper end of outer sleeve 21 is close
Envelope is connected to the lower end of oiling connector 20, and the lower end of outer sleeve 21 is close by the upper end of the connector sleeve 29 and the support tube 19
Envelope connection.Inner sleeve 22 is set in outer sleeve 21, forms the annular between the outer wall of inner sleeve 22 and the inner wall of outer sleeve 21
Space, the threaded upper ends of inner sleeve 22 are connected on the upper end inner wall of outer sleeve 21 and sealed set is (i.e. between outer sleeve 21
By the upper end closed of the annular space), be equipped with the spring 27 and piston 28 in the annular space, 21 lower end of outer sleeve it is interior
Wall is equipped with the limited step for preventing piston 28 from deviating from the annular space.Threaded upper ends in inner sleeve 22 were equipped with
Oil clot 23, the lower end in inner sleeve 22 are equipped with the cable jacket 26, cross between oil clot 23 and cable jacket 26 in being equipped with
Between connector 24, intermediate connecting body 24 is fixed on inner sleeve 22 by positioning pin 25, the lower end of intermediate connecting body 24 and cable
The threaded upper ends of sheath 26 connect, and intermediate connecting body 24 is threadedly coupled with the first cable 10 passed through out of it.First cable
Line 10 successively passes through inside upper end connector, oiling connector 20, mistake oil clot 23, intermediate connecting body 24 and cable jacket 26.Wherein,
Oiling connector 20 is equipped with oil filler point, flows out from the hydraulic oil that the oil filler point injects from the oil passage inside oiling connector 20
Afterwards, a part reaches the week of 10 upper section of the first cable through 20 lower end of oiling connector and the seam crossed between 23 upper end of oil clot
It encloses；Another part can reach the annular space between cable jacket 26 and inner sleeve 22 by the oil passage inside oil clot 23, and can
It reaches around 10 lower section of the first cable, and reaches the closed cavity 32.Positioned at the first of 24 or more intermediate connecting body
Cable 10 is the upper section of the first cable 10, and being located at first cable 10 below of intermediate connecting body 24 is the first cable 10
Lower section.First cable 10 passes through inside intermediate connecting body 24, and is threadedly coupled with intermediate connecting body 24.
As depicted in figs. 1 and 2, in the present embodiment, the upper end of the rotor 5 can connect flexible shaft 3, the rotor
5 lower end can be connect by lower flexible shaft 6 with the drive shaft 7.By the lower flexible shaft 6 of setting, the universal of motor is realized
The function of section, realizes the compensation of motor bias rotary motion, so that the motor drive shaft 7 of lower part be made steadily to turn round.Wherein, described
It is equipped with inside upper flexible shaft 3, the rotor 5, the lower flexible shaft 6 and the drive shaft 7 and to be passed through for the second cable 17
Cable-through hole, second cable 17 sequentially pass through the upper flexible shaft 3, the rotor 5, the lower flexible shaft 6 from top to bottom
After the drive shaft 7, it is electrically connected with the lower part electric connection in lower contact 8.Upper flexible shaft 3 and lower flexible shaft 6 can be all made of titanium
Alloy material is made.
In the description of the embodiment of the present application unless specifically defined or limited otherwise, term " connection ", " fixed company
Connect ", " installation ", " assembly " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；Term " installation ", " connection ", " being fixedly connected " can be directly connected, can also indirectly connected through an intermediary, or
It is the connection inside two elements.For the ordinary skill in the art, it can understand that above-mentioned term exists with concrete condition
Concrete meaning in the embodiment of the present application.
Claims (10)
1. a kind of underground screw motor, it is characterised in that: including top connection, stator case, rotor, drive shaft and lower contact；
The lower end of the top connection is connect with the upper end of the stator case, and the rotor is set in the stator case, described
The lower end of rotor drives the lower contact to rotate by the drive shaft；
It is equipped with upper contact component in the top connection, is equipped with the first cable in the upper contact component；
The second cable, the lower end of second cable and the lower part electric connection electricity in the lower contact are equipped in the rotor
The upper end of connection, second cable is electrically connected by electrical transmission component with first cable.
2. underground screw motor as described in claim 1, it is characterised in that: the electrical transmission component include the first conducting ring and
The second conducting ring for being rotatably assorted and contacting with first conducting ring, first conducting ring are electrically connected with first cable
It connects, second conducting ring is connected on the rotor and is electrically connected with the upper end of second cable.
3. underground screw motor as described in claim 1, it is characterised in that: the electrical transmission component includes the first matrix, sets
In primary side transmit circuit and outer inductive coupler coils, the second matrix on first matrix, and it is set to second matrix
On secondary side receive circuit and interior inductive coupler coils；
The primary side transmit circuit is electrically connected with first cable, and the pair side receives circuit and second cable
Upper end electrical connection, the outer inductive coupler coils and interior inductive coupler coils relatively rotate and realize electricity by electromagnetic coupling mode
Signal transmission.
4. underground screw motor as claimed in claim 3, it is characterised in that: first matrix is connected to the top electricity and connects
Head assembly or the top connection, second matrix are connected to the upper end of the rotor.
5. underground screw motor as described in claim 1, it is characterised in that: support tube is additionally provided in the top connection, it is described
The lower end of upper contact component is tightly connected by the upper end of connector sleeve and the support tube, and the upper end of the rotor rotates branch
In the support tube, a closed cavity is formed at the top of the support tube for support, is equipped with the electrical transmission in the closed cavity
Component.
6. underground screw motor as claimed in claim 5, it is characterised in that: the upper contact component is equipped with including inside
The upper contact matrix and outer sleeve of first cable, the outer sleeve are connected under the upper contact matrix
Portion and the annular space that upper end closed is formed between the upper contact matrix, the lower end of the annular space with it is described
Closed cavity is connected to, and the upper end that the annular space is located on the outer sleeve is equipped with through-hole, is equipped with bullet in the annular space
Spring and piston, the piston dynamic sealing are set in the annular space, and the spring one end is fixed, and the other end is connected to described
On the upper side of piston.
7. underground screw motor as claimed in claim 6, it is characterised in that: the lower end in the annular space is equipped with for limiting
Make the limited step for the extreme position that the piston moves down.
8. underground as claimed in claim 6 screw motor, it is characterised in that: the upper contact intrinsic silicon is equipped with and is used for
The first passing channel and hydraulic oil channel of first cable are accommodated, it is logical that line is crossed in the hydraulic oil channel connection described first
The oil filler point being arranged on road and the upper contact matrix.
9. underground screw motor as described in claim 1, it is characterised in that: the upper end of the rotor is connected with flexible shaft,
The lower end of the rotor passes through lower flexible shaft and the driving axis connection.
10. underground screw motor as claimed in claim 9, it is characterised in that: second cable is successively worn from top to bottom
Cross the upper flexible shaft, the rotor, the lower flexible shaft and the drive shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910419343.4A CN110043185B (en) | 2019-05-20 | 2019-05-20 | Underground screw motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910419343.4A CN110043185B (en) | 2019-05-20 | 2019-05-20 | Underground screw motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110043185A true CN110043185A (en) | 2019-07-23 |
| CN110043185B CN110043185B (en) | 2020-11-06 |
Family
ID=67282645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910419343.4A Active CN110043185B (en) | 2019-05-20 | 2019-05-20 | Underground screw motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110043185B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112523682A (en) * | 2020-11-30 | 2021-03-19 | 中国石油天然气集团有限公司 | Thread-passing screw drill and thread-passing method |
| CN112576182A (en) * | 2020-11-30 | 2021-03-30 | 中国石油天然气集团有限公司 | Wire passing motor drilling tool |
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| CN1299915A (en) * | 1998-02-05 | 2001-06-20 | 施卢默格控股有限公司 | Automatically controlled rotation-controllable drilling system and drilling method |
| CN2453165Y (en) * | 2000-09-27 | 2001-10-10 | 贾连英 | Oil prodn. machine with hydraulic transmission screw stem pump |
| CN2556352Y (en) * | 2002-06-26 | 2003-06-18 | 何太银 | Full-automatic hydraulic drilling machine truck for oil and geological prospecting |
| US20080185184A1 (en) * | 2007-02-06 | 2008-08-07 | Maguire James Q | Cryogenic drilling method |
| US20100243264A1 (en) * | 2009-03-27 | 2010-09-30 | Baker Hughes Incorporated | Multiphase Conductor Shoe For Use With Electrical Submersible Pump |
| CN103492672A (en) * | 2011-03-30 | 2014-01-01 | 韦尔泰克有限公司 | Downhole pressure compensating device |
| CN106639898A (en) * | 2017-01-04 | 2017-05-10 | 北京赛诺凤凰能源科技有限公司 | Line-passing screw drilling tool |
-
2019
- 2019-05-20 CN CN201910419343.4A patent/CN110043185B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1299915A (en) * | 1998-02-05 | 2001-06-20 | 施卢默格控股有限公司 | Automatically controlled rotation-controllable drilling system and drilling method |
| CN2453165Y (en) * | 2000-09-27 | 2001-10-10 | 贾连英 | Oil prodn. machine with hydraulic transmission screw stem pump |
| CN2556352Y (en) * | 2002-06-26 | 2003-06-18 | 何太银 | Full-automatic hydraulic drilling machine truck for oil and geological prospecting |
| US20080185184A1 (en) * | 2007-02-06 | 2008-08-07 | Maguire James Q | Cryogenic drilling method |
| US20100243264A1 (en) * | 2009-03-27 | 2010-09-30 | Baker Hughes Incorporated | Multiphase Conductor Shoe For Use With Electrical Submersible Pump |
| CN103492672A (en) * | 2011-03-30 | 2014-01-01 | 韦尔泰克有限公司 | Downhole pressure compensating device |
| CN106639898A (en) * | 2017-01-04 | 2017-05-10 | 北京赛诺凤凰能源科技有限公司 | Line-passing screw drilling tool |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112523682A (en) * | 2020-11-30 | 2021-03-19 | 中国石油天然气集团有限公司 | Thread-passing screw drill and thread-passing method |
| CN112576182A (en) * | 2020-11-30 | 2021-03-30 | 中国石油天然气集团有限公司 | Wire passing motor drilling tool |
| CN112576182B (en) * | 2020-11-30 | 2022-04-12 | 中国石油天然气集团有限公司 | Wire passing motor drilling tool |
| CN112523682B (en) * | 2020-11-30 | 2022-07-19 | 中国石油天然气集团有限公司 | Thread-passing screw drill and thread-passing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110043185B (en) | 2020-11-06 |
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