CN209483209U - A kind of self-balancing torque drilling rig for continuous pipe - Google Patents
A kind of self-balancing torque drilling rig for continuous pipe Download PDFInfo
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- CN209483209U CN209483209U CN201821985105.7U CN201821985105U CN209483209U CN 209483209 U CN209483209 U CN 209483209U CN 201821985105 U CN201821985105 U CN 201821985105U CN 209483209 U CN209483209 U CN 209483209U
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- drilling
- continuous pipe
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Abstract
The utility model provides a kind of self-balancing torque drilling rig for continuous pipe, it is related to the complete well field of oil and gas well drilling, connector, drilling rod, the first drilling unit and the second drilling unit are connected in series in the terminal order of continuous pipe, the direction of rotation of first drilling unit and the direction of rotation of the second drilling unit are on the contrary, the outer diameter of the first drilling unit is greater than the outer diameter of the second drilling unit.The utility model proposes self-balancing torque boring method for continuous pipe and device can reduce the reaction torque acted on continuous pipe tubing string in drilling process, avoid the continuous pipe buckling of continuous pipe drilling process.
Description
Technical field
The utility model relates to the complete well field of oil and gas well drilling, in particular to a kind of self-balancing for continuous pipe is turned round
Square drilling rig.
Background technique
Continuous pipe drilling technology be domestic many mid-late oilfield developments it is long stop well, low yield inefficient well is taped the latent power the main of increasing the storage
Means.Its use continuous pipe replace conventional drill carry out drillng operation, have it is high-efficient, take up little area, be at low cost, bottom pressure control
Convenient feature is made, continuous pipe is easy to implement the technical advantages such as continuous circulation, can be widely used for old well in conjunction with underbalance fluid
Sidetracking, old well deepen and untraditional reservoir exploitation, can be improved Remaining Oil And Gas recovery ratio, reduces operating risk, reduces crude oil
Production cost.
But due to being easy to appear buckling phenomenon when continuous pipe bears large torque, cause conventional continuous pipe drillng operation without
High bit pressure, large torque sharp work when image of Buddha conventional drill rod drilling well.The existing continuous pipe drillng operation of routine generally uses low brill
Pressure, high revolving speed operation, drilling efficiency are low.
In consideration of it, the present inventor is according to the production design experience for being engaged in this field and related fields for many years, by trying repeatedly
It tests and designs a kind of self-balancing torque drilling rig for continuous pipe, it is of the existing technology to solve the problems, such as.
Utility model content
The purpose of this utility model is to provide a kind of self-balancing torque drilling rigs for continuous pipe, can reduce brill
The reaction torque on continuous pipe tubing string is acted on during well, avoids the continuous pipe buckling of continuous pipe drilling process.
In order to achieve the above objectives, the utility model proposes a kind of self-balancing torque drilling rigs for continuous pipe, wherein
The self-balancing torque drilling rig includes continuous pipe, connector, drilling rod, the first drilling unit and second of sequential series connection
Unit is crept into, the direction of rotation of the first drilling unit and described second creep into the direction of rotation of unit on the contrary, described first
The outer diameter for creeping into unit is greater than the outer diameter of second drilling unit.
It is used for the self-balancing torque drilling rig of continuous pipe as described above, wherein the first drilling unit to include the
One drill bit and the first motor for driving first drill bit, the second drilling unit include the second drill bit and for driving
The direction of rotation of second motor of second drill bit, the direction of rotation of first motor and second motor is on the contrary, institute
The outer diameter for stating the first drill bit is greater than the outer diameter of second drill bit.
It is used for the self-balancing torque drilling rig of continuous pipe as described above, wherein first motor to be right handed screw
Drilling tool, second motor are left-handed screw drilling tool.
It is used for the self-balancing torque drilling rig of continuous pipe as described above, wherein first drill bit to be cut with dextrorotation
Structure is cut, second drill bit has left-hand cut structure, and first motor is connect with the drilling rod by right-handed thread.
It is used for the self-balancing torque drilling rig of continuous pipe as described above, wherein first motor to be left-handed screw
Drilling tool, second motor are right handed screw drilling tool.
It is used for the self-balancing torque drilling rig of continuous pipe as described above, wherein first drill bit to have left-handed cut
Structure is cut, second drill bit has right-hand cut structure, and first motor is connect with the drilling rod by left hand thread.
It is used for the self-balancing torque drilling rig of continuous pipe as described above, wherein first drill bit to be reamer, institute
Stating the second drill bit is pilot bit.
It is used for the self-balancing torque drilling rig of continuous pipe as described above, wherein the revolving speed of the second drilling unit
Greater than the revolving speed of the first drilling unit.
It is used for the self-balancing torque drilling rig of continuous pipe as described above, wherein the drilling rod to be heavy weight drill pipe.
As described above be used for continuous pipe self-balancing torque drilling rig, wherein the connector include connection ontology,
Connecting bushing and multiple fixing bolts, the connection ontology and the connecting bushing are cylindrical, the connecting bushing setting
It is connecting one end of ontology and is being set in the connection ontology, the inner wall of the outer wall of the connecting bushing and the connection ontology
Between there is the installation space for being spaced and being formed annular, the continuous pipe is plugged in the installation space, the connection ontology
Outer wall on offer multiple mounting holes being connected with the installation space, the fixing bolt is corresponding to be inserted into the mounting hole
Interior and contact is on the outer wall of the continuous pipe, and the inner thread of the outer wall of the fixing bolt and the mounting hole cooperates, institute
The other end for stating connection ontology is connect with the drill rod thread.
Compared with prior art, the utility model has the characteristics that and advantage:
The utility model proposes the self-balancing torque boring method and device for continuous pipe, utilize first drilling unit
Drillng operation is carried out simultaneously with the second drilling unit, also, in drilling process, the direction of rotation and second of the first drilling unit
The direction of rotation of unit is crept on the contrary, in this way, the reaction torque that the first drilling unit generates creeps into the anti-twisted of unit generation with second
The direction of square also on the contrary, can offset each other in turn, can substantially reduce acted in drilling process it is anti-twisted on continuous pipe tubing string
Square avoids continuous pipe in the continuous pipe drilling process of high bit pressure, high torque that buckling occurs.
Detailed description of the invention
Attached drawing described here is only used for task of explanation, and is not intended to limit in any way disclosed by the utility model
Range.In addition, shape and proportional sizes of each component in figure etc. are only schematically, to be used to help the reason to the utility model
Solution is not the specific shape and proportional sizes for limiting each component of the utility model.Those skilled in the art is practical new at this
Under the introduction of type, various possible shapes and proportional sizes can be selected to implement the utility model as the case may be.
Fig. 1 be the utility model proposes the self-balancing torque drilling rig for continuous pipe structural schematic diagram；
Fig. 2 is the structural schematic diagram of connector in the utility model.
Description of symbols:
100, self-balancing torque drilling rig；10, continuous pipe；
20, connector；21, ontology is connected；
22, connecting bushing；23, fixing bolt；
30, drilling rod；40, the first drilling unit；
41, the first drill bit；42, the first motor；
50, the second drilling unit；51, the second drill bit；
52, the second motor；24, mounting hole.
Specific embodiment
In conjunction with the description of attached drawing and specific embodiment of the present invention, the utility model can be clearly understood
Details.But specific embodiment of the present utility model described herein, it is only used for explaining the purpose of this utility model, without
It can be understood as being limitations of the present invention in any way.Under the introduction of the utility model, technical staff is contemplated that
Any possible deformation based on the utility model, these are regarded as belonging to the scope of the utility model.
The utility model proposes a kind of self-balancing torque drilling rigs 100 for continuous pipe, as shown in Figure 1, should be certainly flat
The torque drilling rig 100 that weighs includes that the continuous pipe 10, connector 20, drilling rod 30, first of sequential series connection creep into 40 and of unit
The direction of rotation of second drilling unit 50, the direction of rotation of the first drilling unit 40 and the second drilling unit 50 is opposite.
The utility model proposes self-balancing torque drilling rig 100 for realizing a kind of continuous pipe self-balancing torque brill
Well method is connected in series with connector 20, the drilling unit 40 of drilling rod 30, first and the second drilling in the terminal order of continuous pipe 10
The direction of rotation of unit 50, the direction of rotation of the first drilling unit 40 and the second drilling unit 50 is opposite.
The utility model proposes the self-balancing torque boring method and device for continuous pipe, utilize first drilling unit
40 and second creep into unit 50 while carrying out drillng operation, also, in drilling process, the direction of rotation of the first drilling unit 40
Direction of rotation with the second drilling unit 50 is on the contrary, in this way, the reaction torque that the first drilling unit 40 generates creeps into unit with second
The direction of 50 reaction torques generated can substantially reduce in drilling process also on the contrary, can offset each other in turn and act on continuous pipe
Reaction torque on tubing string avoids continuous pipe in the continuous pipe drilling process of high bit pressure, high torque that buckling occurs.
In the utility model one optional example, the revolving speed of the second drilling unit 50 is higher than the first drilling unit 40
Revolving speed is further ensured that high-efficient homework.
In the utility model one optional example, the first drilling unit 40 includes the first drill bit 41 and for driving the
First motor 42 of one drill bit 41 rotation, the second drilling unit 50 include the second drill bit 51 and are used to drive the rotation of the second drill bit 52
The second motor 52, the direction of rotation of the first motor 42 is opposite with the direction of rotation of the second motor 52.
In the utility model one optional example, the first drill bit 41 is reamer, and the second drill bit 51 is pilot bit.
Further, the first drill bit 41 can be fixed-wing reamer, and be machined in the fixed-wing reamer one end
Male thread for connecting with the first motor 42, the other end are machined with the box thread for connecting with the second motor 52.Certainly,
One drill bit 41 is not limited to fix with reamer, and those skilled in the art can choose existing other types of reamer.
Further, the outer diameter of the first drill bit 41 is greater than the outer diameter of the second drill bit 51, and the outer diameter of the first drill bit 41 is
120mm, the outer diameter of the second drill bit 51 are 89mm.
In an optional example, as shown in Figure 1, the first motor 42 is right handed screw drilling tool, the first motor 42 it is outer
Diameter 95mm, rated speed 150rpm；Second motor 52 is left-handed screw drilling tool, the outer diameter 73mm of the second motor 52, rated speed
For 150rpm.
Preferably, the first drill bit 41 has right-hand cut structure, and the second drill bit 51 has left-hand cut structure.
Preferably, the first motor 42 is connect with drilling rod 30 by right-handed thread, to guarantee in drilling process, the first motor
42 firmness being threadedly coupled with drilling rod 30.
In the present embodiment, as shown in Figure 1, in drilling, the first motor 42 drives first drill bit 41 (reamer) dextrorotation
Broken rock is rotated, left-handed reaction torque is generated；Second motor 52 drives the second left-handed rotation broken rock of drill bit 51 (pilot bit), generates
The reaction torque of dextrorotation.The opposite reaction torque of both direction offsets each other, and can substantially reduce in drilling process on continuous pipe tubing string
Reaction torque avoids the continuous pipe buckling of the continuous pipe drilling process of high bit pressure, high torque.
In the utility model in another optional example, the first motor 42 is left-handed screw drilling tool, and the second motor 52 is
Right handed screw drilling tool.
Preferably, the first drill bit 41 has left-hand cut structure, and the second drill bit 51 has right-hand cut structure.
Preferably, the first motor 42 is connect with drilling rod 30 by left hand thread.
In drilling, the first motor 42 drives the first left-handed rotation broken rock of drill bit 41 (reamer), generates the anti-twisted of dextrorotation
Square；Second motor 52 drives 51 (pilot bit) dextrorotation of the second drill bit to rotate broken rock, generates left-handed reaction torque.Both direction phase
Anti- reaction torque offsets each other, and can substantially reduce the reaction torque in drilling process on continuous pipe tubing string, avoid high bit pressure, high torque
The continuous pipe buckling of continuous pipe drilling process.
In the utility model one optional example, drilling rod 30 is heavy weight drill pipe.The main function of drilling rod 30 is to provide
Bit pressure is crept into, and bit pressure is the key parameter that drilling well is realized.Heavy weight drill pipe is able to bear bigger bit pressure, is further ensured that high brill
Pressure, high torque drillng operation are gone on smoothly.The structure of heavy weight drill pipe can use the prior art, herein without repeating.
In the utility model one optional example, as shown in Fig. 2, connector 20 includes connection ontology 21, connection lining
Set 22 and multiple fixing bolts 23, connect ontology 21 and connecting bushing 22 is cylindrical, and the setting of connecting bushing 22 is connecting this
One end of body 21 is simultaneously set in connection ontology 21, has interval between the outer wall of connecting bushing 22 and the inner wall for connecting ontology 21
And the installation space of annular is formed, continuous pipe 10 is plugged in above-mentioned installation space, is connected and is offered on the outer wall wall of ontology 21
Multiple mounting holes 24 being connected with installation space, the corresponding insertion mounting hole 24 of fixing bolt 23 is interior and contact is in continuous pipe 10
On outer wall, the outer wall of fixing bolt 23 and the inner thread of mounting hole 14 cooperate, and connect the other end and 30 spiral shell of drilling rod of ontology 21
Line cooperation.
In an optional example, the outer diameter of connection ontology 21 is 102mm, connects and processes on the outer wall of 21 one end of ontology
There are multiple mounting holes 24, the other end of connection ontology 21 is machined with the male thread that can be connect with drilling rod 30.Connecting bushing 22
It is recessed that circle is machined on outer wall；One end of fixing bolt 23 is machined with external screw thread, and the other end of fixing bolt 23 is machined with spherical male
Rise, the hemisphere jut can contact on the outer wall of continuous pipe 10.
Now by one 2 7/8 " for continuous pipe drilling well, to the utility model proposes the self-balancing torque for continuous pipe
Drilling rig is described in detail:
Firstly, in well head assembling tool string: the second drill bit 51 is connect by screw thread with the second motor 52；Second motor 52 is logical
Screw thread is crossed to be threadedly coupled with the first drill bit 41；First drill bit 41 is threadedly coupled with the first motor 42；First motor 42 and drilling rod 30
It is threadedly coupled；Drilling rod 30 is threadedly coupled with the connection ontology 21 of connector 20；It is inserted after the preset connecting bushing 22 of continuous 10 inner hole of pipe
Enter to connect in ontology 21, fixing bolt 23 is screwed into mounting hole 24, passes through the fixed continuous pipe 10 of 23 radial compression of fixing bolt.
Wherein, as shown in Figure 1, the first motor 42 is right handed screw drilling tool, the first drill bit 41 is reamer, the second motor 52
For left-handed screw drilling tool, the second drill bit 51 is pilot bit.
Later, by 100 G.I.H of self-balancing torque drilling rig and start drilling well, in drilling process, the first motor 42
It drives 41 dextrorotation of the first drill bit to rotate broken rock, generates left-handed reaction torque；After the first drilling unit 40 creeps into a period of time,
Underground forms an eyelet；Later, second drilling 50 tripping in of unit eyelet, the second motor 52 drive the left-handed rotation of the second drill bit 51
Turn, since the outer diameter of the second drill bit 51 is greater than the outer diameter of the first drill bit 41, the second drill bit 51 is acted on the inner wall of eyelet, expands
The internal diameter of the eyelet generates the reaction torque of dextrorotation due to the left-handed rotation broken rock of the second drill bit 51.The opposite reaction torque of both direction
It offsets each other, the reaction torque in drilling process on continuous pipe tubing string can be substantially reduced, avoid the continuous pipe drilling well of high bit pressure, high torque
The continuous pipe buckling of process.
For explaining in detail for the respective embodiments described above, purpose, which is only that, explains the utility model, in order to
It better understood when the utility model, still, these descriptions cannot be with any explanation at being limit to the utility model
System, in particular, each feature described in various embodiments can also mutual any combination, to form other implementations
Mode, in addition to there is clearly opposite description, these features should be understood to can be applied in any one embodiment, and simultaneously
It is not only limited to described embodiment.
Claims (10)
1. a kind of self-balancing torque drilling rig for continuous pipe, which is characterized in that the self-balancing torque drilling rig packet
Continuous pipe, connector, drilling rod, the first drilling unit and the second drilling unit of sequential series connection are included, first drilling is single
The direction of rotation of member and the direction of rotation of the second drilling unit are on the contrary, the outer diameter of the first drilling unit is greater than described the
The outer diameter of two drilling units.
2. being used for the self-balancing torque drilling rig of continuous pipe as described in claim 1, which is characterized in that first drilling
Unit includes the first drill bit and the first motor for driving first drill bit, and the second drilling unit includes the second drill bit
With for driving the second motor of second drill bit, the rotation side of the direction of rotation of first motor and second motor
To on the contrary, the outer diameter of first drill bit is greater than the outer diameter of second drill bit.
3. being used for the self-balancing torque drilling rig of continuous pipe as claimed in claim 2, which is characterized in that first motor
For right handed screw drilling tool, second motor is left-handed screw drilling tool.
4. being used for the self-balancing torque drilling rig of continuous pipe as claimed in claim 3, which is characterized in that first drill bit
With right-hand cut structure, second drill bit has left-hand cut structure, and first motor and the drilling rod pass through dextrorotation
It is threadedly coupled.
5. being used for the self-balancing torque drilling rig of continuous pipe as claimed in claim 2, which is characterized in that first motor
For left-handed screw drilling tool, second motor is right handed screw drilling tool.
6. being used for the self-balancing torque drilling rig of continuous pipe as claimed in claim 5, which is characterized in that first drill bit
With left-hand cut structure, second drill bit has right-hand cut structure, and first motor passes through left-handed with the drilling rod
It is threadedly coupled.
7. being used for the self-balancing torque drilling rig of continuous pipe as claimed in claim 2, which is characterized in that first drill bit
For reamer, second drill bit is pilot bit.
8. being used for the self-balancing torque drilling rig of continuous pipe as described in claim 1, which is characterized in that second drilling
The revolving speed of unit is greater than the revolving speed of the first drilling unit.
9. being used for the self-balancing torque drilling rig of continuous pipe as claimed in claim 3, which is characterized in that the drilling rod is to add
It is redrilled bar.
10. being used for the self-balancing torque drilling rig of continuous pipe as claimed in claim 3, which is characterized in that the connector
Including connection ontology, connecting bushing and multiple fixing bolts, the connection ontology and the connecting bushing are cylindrical, described
Connecting bushing is arranged in one end of connection ontology and is set in the connection ontology, the outer wall of the connecting bushing and the company
Connecing has the installation space for being spaced and being formed annular between the inner wall of ontology, the continuous pipe is plugged in the installation space,
Multiple mounting holes being connected with the installation space are offered on the outer wall of the connection ontology, the fixing bolt is corresponding to be inserted
Enter in the mounting hole and contact is on the outer wall of the continuous pipe, the inner wall of the outer wall of the fixing bolt and the mounting hole
It is threadedly engaged, the other end of the connection ontology is connect with the drill rod thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821985105.7U CN209483209U (en) | 2018-11-29 | 2018-11-29 | A kind of self-balancing torque drilling rig for continuous pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821985105.7U CN209483209U (en) | 2018-11-29 | 2018-11-29 | A kind of self-balancing torque drilling rig for continuous pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209483209U true CN209483209U (en) | 2019-10-11 |
Family
ID=68117288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821985105.7U Active CN209483209U (en) | 2018-11-29 | 2018-11-29 | A kind of self-balancing torque drilling rig for continuous pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209483209U (en) |
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2018
- 2018-11-29 CN CN201821985105.7U patent/CN209483209U/en active Active
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