CN104863503B - Preventing sticking drilling rig based on double-wall drill pipe and mud motor - Google Patents
Preventing sticking drilling rig based on double-wall drill pipe and mud motor Download PDFInfo
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- CN104863503B CN104863503B CN201510226550.XA CN201510226550A CN104863503B CN 104863503 B CN104863503 B CN 104863503B CN 201510226550 A CN201510226550 A CN 201510226550A CN 104863503 B CN104863503 B CN 104863503B
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Abstract
The present invention is a kind of preventing sticking drilling rig based on double-wall drill pipe and mud motor, described preventing sticking drilling rig includes the double-wall drill pipe of many order arrangement concatenations, it is connected with a rotary-jet desanding device between each double-wall drill pipe, the bottom of the last root double-wall drill pipe connects an adapter, and this adapter lower end connects mud motor.Rotary-jet desanding device and single double-wall drill pipe adapter are applied on drill string the present invention, drilling well flow velocity and the deposition reducing solid phase particles in the outer annular space flow channels between double-wall drill pipe outer tube and the borehole wall can be increased, reduce and reduce the filter cake being deposited on the borehole wall, the effectively pre- antiseized generation inhaling lock of tool drilling.
Description
Technical field
The present invention is with regard to a kind of preventing sticking drilling rig, and more particularly, to one kind is based on double-wall drill pipe and mud motor
Preventing sticking drilling rig.
Background technology
The water-sensitive strata such as chance unconsolidated formation, clay, mud stone, shale can be bored, due to rock in this kind of stratum in drilling process
Layer is met water electrode and the problems such as expansion, undergauge and peeling easily, thus seriously threaten safety in well for the drilling tool.On this kind of stratum
In drilling process, mud is had a power failure using careless slightly or prominent chance, mud blocks it is easy to lead to glue in the case of not circulating.Institute
So that, when creeping in this stratum, modal problem is exactly viscous suction lock of tool drilling.
Research draws has the presence of filter cake to be to cause the viscous immanent cause inhaling bit freezing on the borehole wall.The formation of filter cake have three kinds former
Cause：First is absorption, and the solid phase particles in drilling fluid adsorb in rock surface；Second be deposition, drilling fluid in flow process,
Flow velocity near the borehole wall is no better than zero, and the solid phase particles in drilling fluid are just deposited on the borehole wall；3rd is leak-off effect, and it adds
The deposition on permeable formation surface for the solid phase particles in speed drilling fluid；Therefore, glue and inhale the preventive measure of bit freezing first have to can
Avoid and reduce the filter cake being deposited on the borehole wall.
In prior art, the pre- antiseized measure inhaling bit freezing is concentrated mainly on the user of reasonably artificial operation and drilling fluid
Face, for example：Carry out solid controlling work and using neutral drilling fluid；Prior art still can not be pre- in terms of boring method and drilling rig
The antiseized generation inhaling lock of tool drilling；And, the operation to driller for the preventive measure of the prior art and the selection of drilling fluid
Require very harsh, the careless slightly generation just easily causing viscous suction lock of tool drilling；The lighter, haling or cover milling can be in 3～5 day
It is disposed；Severe one, then take 10～30 days and be disposed, or even causes drilling tool and oil well to scrap, thus causing huge economy
Loss.
Thus, the present inventor relies on and is engaged in experience and the practice of relevant industries for many years, propose a kind of based on double-wall drill pipe and
The preventing sticking drilling rig of mud motor, to overcome the defect of prior art.
Content of the invention
It is an object of the invention to provide a kind of preventing sticking drilling rig based on double-wall drill pipe and mud motor,
In the case of not harsh to artificial operation and drilling fluid selection requirements, can effectively reduce and reduce filter cake and be deposited on the borehole wall,
And then pre- antiseized suction lock of tool drilling occur.
The object of the present invention is achieved like this, a kind of preventing sticking drilling well dress based on double-wall drill pipe and mud motor
Put, described preventing sticking drilling rig includes the double-wall drill pipe of many order arrangement concatenations, is connected with one between each double-wall drill pipe
Rotary-jet desanding device, the bottom of the last root double-wall drill pipe connects an adapter, this adapter lower end connection down-hole
Power drilling tool.
In a better embodiment of the present invention, described rotary-jet desanding device is arranged by central canal and concentric spacing
Shell body outside central canal is constituted；Described central canal upper/lower terminal respectively with its above and below double-wall drill pipe in
Pipe is fixedly connected, and the upper/lower terminal of described shell body is rotated with a top connection and once joint sealing respectively and is connected, described on connect
Head with its above double-wall drill pipe outer seal of tube grafting, described lower contact is slotting with the outer seal of tube of double-wall drill pipe below
Connect；Described central canal outside wall surface order fixation is arranged with multiple stators, and described shell body internal face is relative with the plurality of stator
Position fixation be arranged with multiple rotors；It is evenly equipped with multiple jet orifices running through its shell wall along its circumference on described shell body.
In a better embodiment of the present invention, described central canal is by the upper center tube being coaxially disposed and lower center tube spiral shell
Stricture of vagina is fixedly connected composition, and described lower center tube epimere outer wall is provided with the first ladder positioning section that external diameter is less than upper center tube external diameter,
The plurality of stator order fixed cover is located at the first ladder positioning section.
In a better embodiment of the present invention, described shell body is solid by the upper shell being coaxially disposed and lower house screw thread
Surely connect and compose；Described lower house epimere inwall is provided with the second ladder positioning section that internal diameter is more than upper shell internal diameter, this second-order
Terraced positioning section is oppositely arranged with described first ladder positioning section, and the plurality of rotor order fixed cover positions located at this second ladder
Section.
In a better embodiment of the present invention, the upper and lower end of the plurality of stator has been arranged concentrically one first spacer；
The upper and lower end of the plurality of rotor has been arranged concentrically one second spacer.
In a better embodiment of the present invention, between described upper enclosure inner wall and top connection outer wall, it is provided with a TC axle
Hold, thus constitute described shell body upper end and be connected with the sealing rotation of top connection；Described lower house inwall and lower contact outer wall it
Between be provided with the 2nd TC bearing and the 3rd TC bearing, be additionally provided with multiple ball bearings between the 2nd TC bearing and the 3rd TC bearing, by
This is constituted described shell body lower end and is connected with the sealing rotation of lower contact.
In a better embodiment of the present invention, the quiet external threading of TC of a TC bearing is fixedly connected on outside top connection
Wall, the TC of a TC bearing moves external threading and is fixedly connected on upper enclosure inner wall；2nd TC bearing and the quiet set of TC of the 3rd TC bearing
It is screwed and is connected to lower contact outer wall, the TC of the 2nd TC bearing and the 3rd TC bearing moves external threading and is fixedly connected in lower casing body
Wall；The upper and lower end of the plurality of ball bearing has been arranged concentrically one the 3rd spacer.
In a better embodiment of the present invention, described jet orifice arranges four；Each jet orifice is from shell body by interior
Outward-dipping set up.
In a better embodiment of the present invention, described adapter is by the concentric twin adapter in top and bottom list joint one
Body formed, described concentric twin adapter includes joint inner tube and the joint outer tube of bottom end seal connection, along its circumference on joint outer tube
It is evenly equipped with the return port of multiple insertion tube walls；Described bottom list joint is provided with the central duct with the conducting of joint inner tube upwards；Institute
State concentric twin adapter to be connected with the double-wall drill pipe above it, the outer seal of tube of described joint outer tube and the double-wall drill pipe above it is inserted
Connect, described joint inner tube is fixedly connected with the inner tube of the double-wall drill pipe above it；Described single joint and well dynamic below
Drilling tool connects.
In a better embodiment of the present invention, described return port arranges four.
From the above mentioned, the preventing sticking drilling rig based on double-wall drill pipe and mud motor for the invention, is operating to artificial
In the case of not harsh with drilling fluid selection requirements, can effectively reduce and reduce filter cake being deposited on the borehole wall, so pre- antiseized
Inhale lock of tool drilling to occur.
Brief description
The following drawings is only intended to, in doing schematic illustration and explanation to the present invention, not delimit the scope of the invention.Wherein：
Fig. 1：For the structural representation based on the preventing sticking drilling rig of double-wall drill pipe and mud motor for the present invention；
Fig. 2：Structural representation for rotary-jet desanding device in the present invention；
Fig. 3：For partial enlargement structural representation at C in Fig. 1；
Fig. 4：For cross-sectional view at A-A in Fig. 1；
Fig. 5：Structural representation for adapter in the present invention；
Fig. 6：For cross-sectional view at B-B in Fig. 5.
Specific embodiment
In order to be more clearly understood to the technical characteristic of the present invention, purpose and effect, now comparison brief description this
Bright specific embodiment.
As shown in figure 1, the present invention proposes a kind of preventing sticking drilling rig based on double-wall drill pipe and mud motor
100, described preventing sticking drilling rig 100 includes the double-wall drill pipe 1 of many order arrangement concatenations, connects between each double-wall drill pipe 1
It is connected to a rotary-jet desanding device 2, the bottom of the last root double-wall drill pipe 1 connects an adapter 3, under this adapter 3
End connects mud motor 4.
As shown in Figure 2, Figure 3 and Figure 4, during described rotary-jet desanding device 2 is arranged at by central canal 21 and concentric spacing
The shell body 22 in heart pipe 21 outside is constituted；Described central canal 21 upper/lower terminal respectively with its above and below double-wall drill pipe 1
Inner tube 11 is fixedly connected, and the upper/lower terminal of described shell body 22 is rotated even with a top connection 23 and a lower contact 24 sealing respectively
Connect, outer tube 12 sealing grafting, described lower contact 24 and the double-walled below of described top connection 23 and the double-wall drill pipe 1 above it
The outer tube 12 sealing grafting of drilling rod 1；Described central canal 21 outside wall surface order fixation is arranged with multiple stators 25, described shell body 22
The internal face position fixation relative with the plurality of stator 25 is arranged with multiple rotors 26；On described shell body 22 along its circumference all
It is furnished with multiple jet orifices 2211 running through its shell wall.In the present embodiment, described jet orifice 2211 arranges four；Each jet orifice
2211 tilt upward setting (as shown in Figure 2) from shell body 22 from inside to outside.
Further, as shown in Figure 2, Figure 4 shows, in the present embodiment, described central canal 21 is by the upper center tube being coaxially disposed
211 and lower center tube 212 be screwed and connect and compose, described lower center tube 212 epimere outer wall be provided with external diameter be less than upper center tube
First ladder positioning section 2121 of external diameter, the plurality of stator 25 order fixed cover is on the first ladder positioning section 2121.Institute
State shell body 22 to be screwed and connected and composed by the upper shell 221 being coaxially disposed and lower house 222；Described lower house 222 epimere
Inwall is provided with the second ladder positioning section 2221 that internal diameter is more than upper shell internal diameter, this second ladder positioning section 2221 and described first
Ladder positioning section 2121 is oppositely arranged, and the plurality of rotor 26 order fixed cover is on this second ladder positioning section 2221.Institute
The upper and lower end stating multiple stators 25 has been arranged concentrically one first spacer 251, and stator 25 circumference is fixed on lower center tube by key 252
On 212；The upper and lower end of the plurality of rotor 26 has been arranged concentrically one second spacer 261, and rotor 26 circumference is fixed on by key 262
On lower house 222.
In the present embodiment, as shown in Figure 5, Figure 6, described adapter 3 is single by the concentric twin adapter in top 31 and bottom
Joint 32 is integrally formed composition, and described concentric twin adapter 31 includes joint inner tube 311 and the joint outer tube of bottom end seal connection
312, joint outer tube 312 is evenly equipped with the return port 3121 of multiple insertion tube walls along its circumference；In the present embodiment, described time
Discharge orifice 3121 arranges four；Described bottom list joint 32 is provided with the central duct 321 with joint inner tube 311 conducting upwards；Described
With one heart twin adapter 31 is connected with the double-wall drill pipe 1 above it, specifically, described joint outer tube 312 and the double-wall drill pipe 1 above it
Outer tube 12 sealing grafting, described joint inner tube 311 is screwed with the inner tube 11 of the double-wall drill pipe 1 above it and is connected；Described
Single joint 32 is connected with mud motor 4 below.
From the above mentioned, the preventing sticking drilling rig 100 based on double-wall drill pipe and mud motor for the present invention, is rotation
Injection desanding device 2 is arranged on double-wall drill pipe appropriate position, (can install multiple rotary-jet desanding devices 2；For example：Two
One rotary-jet desanding device 2 is installed between root double-wall drill pipe 1), in bottom and the well dynamic of the last root double-wall drill pipe 1
One single double-wall drill pipe adapter 3 is installed between drilling tool 4；During drilling, this preventing sticking drilling rig 100 G.I.H, such as Fig. 1
Shown, constitute outer annular space flow channels 91 between the borehole wall 9 and preventing sticking drilling rig 100, drilling fluid, in the way of direct circulation, divides
Interior annular space flow channels not between double-wall drill pipe 1 inner tube 11 center flow channels and double-wall drill pipe inner tube 11 and outer tube 12
13, pump into a certain amount of drilling fluid simultaneously into well, provide power for mud motor 6；Drilling well in the flow channels of center
Liquid reach shaft bottom, through the outer annular space flow channels 91 between mud motor centre bore tailing edge double-wall drill pipe outer tube and the borehole wall to
Upper return ground；At rotary-jet desanding device 2, a part of drilling fluid drives rotation to drilling fluid in interior annular space flow channels 13
Turn multistage turbine (the multiple stators 25 and multiple rotor 26) rotation of injection desanding device 2, now, drilling fluid impulse turbine rotor
26 so as to partial pressure can be converted to the mechanical energy of turbine rotor 26, and turbine rotor 26 drives upper shell 221, lower casing by key
Body 222 synchronous axial system, it is achieved thereby that jet orifice 2211 is with the rotation (drilling fluid of upper shell 221 in rotary-jet desanding device 2
In rotary-jet)；Drilling fluid after multistage turbine continues to be injected downwardly into, and finally at single double-wall drill pipe adapter 3, leads to
Cross return port 3121 to enter outer annular space flow channels 91 and return up ground；It is high that another part drilling fluid passes through jet orifice 2211
Speed is sprayed to outer annular space flow channels 91, increases drilling fluid flow velocity upwards in outer annular space flow channels 91, and reduces solid phase
The deposition of granule, plays the effect preventing bit freezing；The high pressure of rotary-jet desanding device 2 outside annular space flow channels 91 injection,
The high-speed rotation of high-velocity fluid and shell body 22 can form hydrodynamic lubrication effect, effectively reduces the friction between drill string and the borehole wall 9.
In the present embodiment, the reaction torque producing during described mud motor drilling is mainly held by double-wall drill pipe inner tube
Be subject to, double-wall drill pipe outer tube mainly between inner tube formed in annular space flow channels play circulation drilling fluid effect.
The present invention is had the advantages that based on the preventing sticking drilling rig of double-wall drill pipe and mud motor：
1. double-wall drill pipe and conventional mud motor are combined by the present invention, significantly improve efficiency of breaking rock, significantly carry
High rate of penetration, shortens well construction period, thus reducing drilling cost.
2. rotary-jet desanding device and single double-wall drill pipe adapter are applied on drill string the present invention, can increase double-walled
Drilling well flow velocity and the deposition reducing solid phase particles in outer annular space flow channels between drilling rod outer tube and the borehole wall, reduce and reduce
It is deposited on the filter cake on the borehole wall, the effectively pre- antiseized generation inhaling lock of tool drilling.
3. the high speed rotation of the high pressure, high-velocity fluid and shell body of the injection of rotary-jet desanding device outside annular space flow channels
Turn and can form hydrodynamic lubrication effect, the friction between effectively less drill string and the borehole wall.
Further, in the present embodiment, as shown in Figure 2 and Figure 3, described upper shell 221 inwall and top connection 23 outer wall it
Between be provided with a TC bearing 5, the sealing thus constituting described shell body 22 upper end and top connection 23 rotates and is connected；Specifically,
The quiet set 51 of TC of one TC bearing 5 is screwed and is connected to top connection 23 outer wall, and the TC of a TC bearing 5 moves set 52 companies of being screwed
It is connected to upper shell 221 inwall.
It is provided with the 2nd TC bearing 6 and the 3rd TC bearing 7 between described lower house 222 inwall and lower contact 24 outer wall, second
It is additionally provided with multiple ball bearings 8 between TC bearing 6 and the 3rd TC bearing 7, thus constitute described shell body 22 lower end and lower contact
24 sealing rotates and connects；Specifically, the quiet set 61,71 of the TC of the 2nd TC bearing 6 and the 3rd TC bearing 7 is screwed and is connected to down
Joint 24 outer wall, the dynamic set 62,72 of TC of the 2nd TC bearing 6 and the 3rd TC bearing 7 is screwed and is connected to lower house 222 inwall；
The upper and lower end of the plurality of ball bearing 8 has been arranged concentrically one the 3rd spacer 81.
The preventing sticking drilling rig based on double-wall drill pipe and mud motor for the present invention, to artificial operation and drilling fluid
In the case that selection requirements are not harsh, can effectively reduce and reduce filter cake being deposited on the borehole wall, and then pre- antiseized suction bit freezing thing
Therefore occur.
The foregoing is only the schematic specific embodiment of the present invention, be not limited to the scope of the present invention.Any
Those skilled in the art, done equivalent variations and modification on the premise of the design without departing from the present invention and principle, all
The scope of protection of the invention should be belonged to.
Claims (9)
1. a kind of preventing sticking drilling rig based on double-wall drill pipe and mud motor it is characterised in that：Described preventing sticking bores
Well device includes the double-wall drill pipe of many order arrangement concatenations, is connected with a rotary-jet desanding dress between each double-wall drill pipe
Put, the bottom of the last root double-wall drill pipe connects an adapter, and this adapter lower end connects mud motor；
The shell body that described rotary-jet desanding device is arranged at by central canal and concentric spacing outside central canal is constituted；In described
Heart pipe upper/lower terminal is fixedly connected with the inner tube of the double-wall drill pipe above and below it respectively, the upper/lower terminal of described shell body
Rotate with a top connection and once joint sealing respectively and be connected, the outer seal of tube of described top connection and the double-wall drill pipe above it is inserted
Connect, the outer seal of tube grafting of described lower contact and double-wall drill pipe below；Described central canal outside wall surface order fixation is arranged with
Multiple stators, the position fixation relative with the plurality of stator of described shell body internal face is arranged with multiple rotors；Described shell
It is evenly equipped with multiple jet orifices running through its shell wall along its circumference on body.
2. the preventing sticking drilling rig based on double-wall drill pipe and mud motor as claimed in claim 1 it is characterised in that：
Described central canal is screwed by the upper center tube being coaxially disposed and lower center tube and connects and composes, described lower center tube epimere outer wall
It is provided with the first ladder positioning section that external diameter is less than upper center tube external diameter, the plurality of stator order fixed cover is fixed located at the first ladder
Position section.
3. the preventing sticking drilling rig based on double-wall drill pipe and mud motor as claimed in claim 2 it is characterised in that：
Described shell body is screwed by the upper shell being coaxially disposed and lower house and connects and composes；In described lower house epimere inwall is provided with
Footpath is more than the second ladder positioning section of upper shell internal diameter, and this second ladder positioning section is relative with described first ladder positioning section to be set
Put, the plurality of rotor order fixed cover is located at this second ladder positioning section.
4. the preventing sticking drilling rig based on double-wall drill pipe and mud motor as claimed in claim 3 it is characterised in that：
The upper and lower end of the plurality of stator has been arranged concentrically one first spacer；The upper and lower end of the plurality of rotor has been arranged concentrically one
Two spacers.
5. the preventing sticking drilling rig based on double-wall drill pipe and mud motor as claimed in claim 3 it is characterised in that：
It is provided with a TC bearing between described upper enclosure inner wall and top connection outer wall, thus constitute described shell body upper end and top connection
Sealing rotates and connects；It is provided with the 2nd TC bearing and the 3rd TC bearing, the 2nd TC between described lower house inwall and lower contact outer wall
It is additionally provided with multiple ball bearings, the sealing thus constituting described shell body lower end with lower contact turns between bearing and the 3rd TC bearing
It is dynamically connected.
6. the preventing sticking drilling rig based on double-wall drill pipe and mud motor as claimed in claim 5 it is characterised in that：
The quiet external threading of TC of the first TC bearing is fixedly connected on top connection outer wall, and the TC of a TC bearing moves external threading and is fixedly connected on
Inner walls；The quiet external threading of TC of the 2nd TC bearing and the 3rd TC bearing is fixedly connected on lower contact outer wall, the 2nd TC bearing and
The TC of the 3rd TC bearing moves external threading and is fixedly connected on lower house inwall；The upper and lower end of the plurality of ball bearing is arranged concentrically
There is one the 3rd spacer.
7. the preventing sticking drilling rig based on double-wall drill pipe and mud motor as claimed in claim 1 it is characterised in that：
Described jet orifice arranges four；Each jet orifice tilts upward setting from shell body from inside to outside.
8. the preventing sticking drilling rig based on double-wall drill pipe and mud motor as claimed in claim 1 it is characterised in that：
Described adapter is integrally formed by the concentric twin adapter in top and bottom list joint, and described concentric twin adapter includes bottom end seal even
The joint inner tube connecing and joint outer tube, joint outer tube is evenly equipped with the return port of multiple insertion tube walls along its circumference；Described bottom
Single joint is provided with the central duct with the conducting of joint inner tube upwards；Described concentric twin adapter is connected with the double-wall drill pipe above it,
Described joint outer tube and the outer seal of tube grafting of the double-wall drill pipe above it, described joint inner tube and the double-wall drill pipe above it
Inner tube is fixedly connected；Described single joint is connected with mud motor below.
9. the preventing sticking drilling rig based on double-wall drill pipe and mud motor as claimed in claim 8 it is characterised in that：
Described return port arranges four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510226550.XA CN104863503B (en) | 2015-05-06 | 2015-05-06 | Preventing sticking drilling rig based on double-wall drill pipe and mud motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510226550.XA CN104863503B (en) | 2015-05-06 | 2015-05-06 | Preventing sticking drilling rig based on double-wall drill pipe and mud motor |
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| CN104863503A CN104863503A (en) | 2015-08-26 |
| CN104863503B true CN104863503B (en) | 2017-03-01 |
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| CN201510226550.XA Expired - Fee Related CN104863503B (en) | 2015-05-06 | 2015-05-06 | Preventing sticking drilling rig based on double-wall drill pipe and mud motor |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105952407B (en) * | 2016-06-03 | 2018-05-04 | 中国石油天然气股份有限公司 | Drill pipe release method and release device |
| CN107448160B (en) * | 2017-08-08 | 2023-08-15 | 中国石油大学(北京) | Reverse circulation well drilling device |
| CN113482608B (en) * | 2021-07-13 | 2023-08-18 | 陕西华山路桥集团有限公司 | Soil sampling method for ramming pipe |
| CN114352186B (en) * | 2021-08-20 | 2024-04-30 | 四川深远石油钻井工具股份有限公司 | Anti-blocking structure and anti-blocking drilling tool with same |
| CN115182691B (en) * | 2022-09-07 | 2022-12-20 | 南通欧通石油设备有限公司 | Slurry conveying equipment for oil exploitation |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101387189A (en) * | 2008-10-22 | 2009-03-18 | 中国石油集团长城钻探工程有限公司 | Double-wall drilling airflow control device |
| EP2867441A1 (en) * | 2012-06-05 | 2015-05-06 | Halliburton Energy Services, Inc. | Methods and systems for performance of subterranean operations using dual string pipes |
| CN203547538U (en) * | 2013-09-10 | 2014-04-16 | 天津世纪东大管道穿越工程有限公司 | Dual-channel slurry jetting device |
| CN203584298U (en) * | 2013-11-15 | 2014-05-07 | 河南理工大学 | Soft coal rock drilling dual-channel porous turbulent pressure relief drill |
| CN203570238U (en) * | 2013-11-29 | 2014-04-30 | 无锡中地地质装备有限公司 | New type single action mechanism of drill |
| CN104481419A (en) * | 2014-12-01 | 2015-04-01 | 无锡市钻通工程机械有限公司 | Drill rod of double-wall horizontal directional drilling machine |
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