CN202157748U - Pulse impacting device for drilling well - Google Patents
Pulse impacting device for drilling well Download PDFInfo
- Publication number
- CN202157748U CN202157748U CN2011202864931U CN201120286493U CN202157748U CN 202157748 U CN202157748 U CN 202157748U CN 2011202864931 U CN2011202864931 U CN 2011202864931U CN 201120286493 U CN201120286493 U CN 201120286493U CN 202157748 U CN202157748 U CN 202157748U
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- sliding shaft
- sliding axle
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Abstract
The utility model relates to a pulse impacting device for drilling a well, which is used for reducing frictional resistance, enhancing capabilities of extending and drilling in a horizontal section and improving a mechanical drilling speed when a horizontal well and a large-displacement well are drilled by slurry. The technical scheme of the utility model is as follows: the pulse impacting device for drilling the well is composed of a shell, a piston head, a spring, a sliding shaft, a static sleeve, a sealing ring and the like. The piston head is assembled on the sliding shaft through screw threads and the spring is clamped between an upper circular bead and a lower circular bead, and then the back sliding shaft is installed inside the shell; meanwhile, the sliding shaft is coaxially located inside the shell through the static sleeve and the device is connected with other tools through screw threads. Under the pulse pressure effects of well-drilling liquid in a drilling column, the sliding shaft extends outwards to determine the acting force for outwards extending the sliding shaft by a drilling hydraulic pressure and a pulse frequency. The pulse impacting device provided by the utility model is strong in axial vibration capability, simple in structure, good in safety performance and the like, so that the frictional resistance between the drilling column and the well wall is reduced and the extending and drilling capabilities of the horizontal well and the large-displacement well which are drilled by the slurry are improved.
Description
Technical field
The utility model relates to a kind of drilling well that when mud horizontal well drilling, extended reach well, is used to reduce frictional resistance, enhanced level section extension drilling ability and improve rate of penetration and uses the pulsatile impact device.
Background technology
Along with deepening continuously of exploration and development process, the shared ratio of directional well, horizontal well, extended reach well is increasing.Long horizontal segment drilling technology at home and abroad is used widely, and mainly has benefited from its input-output ratio preferably.At present, foreign level well drilling cost has been reduced to 1.2～2 times of straight well, and output then is 4～8 times of straight well.Horizontal well technology mainly contains following advantage as a potential new technology: recover old well capacity, the oil-gas reservoir of exploitation complicated type, help the exploration and development evaluation, help environmental protection.The extended reach well technology is emerging a kind of drilling technology along with the development of measurement while drilling drilling technology, geologic steering drilling technology, closed loop drilling technology.This technology becomes the important means of sea, exploitation beach and offshore oil and gas resource basically.At present, be drilled to the extended reach well of the ultra myriametre of horizontal movement abroad, and domestic dependence self-technique can only be accomplished the extended reach well of the about 4000m of horizontal movement.In the drilling process of horizontal well and extended reach well, because frictional resistance is big, make that drilling efficiency is low, drilling period is long, drilling cost is high, this becomes the principal element of restriction horizontal well and extended reach well development.In the practice, because the frictional resistance moment of torsion of tubing string is too big, the obvious step-down of rate of penetration following situation possibly appear: at the scene; The drillling tool twisting off accident can not gone up or take place to drilling tool; Do not reach the designing requirement of wellbore trajectory, the target zone rate that hits is low.
Reducing the frictional resistance that moves ahead of drill string in the horizontal segment, is to guarantee that horizontal well or extended reach well extend the key of creeping into long horizontal segment.
Summary of the invention
The purpose of the utility model is: in order to solve above-mentioned technical barrier, the enhanced level section is extended drilling ability and is improved rate of penetration, and the pulsatile impact device is used in a kind of drilling well of special proposition.The fluid pressure pulses that drill string lower end drilling liquid water horsepower fluctuation produces produces this device and acts on the axial impulsive force on the drill string.Axially impulsive force can reduce the frictional resistance that drill string runs at horizontal segment, extends drilling ability with this section of improving the standard.
In order to achieve the above object, the technical scheme that the utility model adopts is: the pulsatile impact device is used in a kind of drilling well, is made up of housing 1, piston head 2, spring 4, sliding axle 11, quiet cover 8 and last sealing ring 3, lower seal 10 etc.; Piston head 2, is locked in spring 4 between upper shoulder 6 and the lower shoulder 7 to sliding axle 11 through screw fit, and then sliding axle 11 is installed in the housing 1; Upper shoulder 6 is made up of piston head end face 12 and housing shoulder 13 two parts, and lower shoulder 7 is made up of with sliding axle shoulder 15 two parts quiet cover end face 14; Last sealing ring 3 stops drilling fluid to flow into the cavity 9 between sliding axle 11 and the housing 1; Quiet cover 8 is positioned sliding axle 11 in the housing 1 coaxially, and lower seal 10 stops this Returning fluid that installs outside cutting carring to be back to cavity 9; The device stroke is determined by two relative distances that support end face 5, and carries displacement less than the maximum of spring 4; Spring 4 can be used helical spring or disk spring; This device is connected with other instrument through screw thread.
The beneficial effect that the utlity model has is: (1) axial vibration ability is strong, simple in structure, security performance is good, can improve the extension drilling ability of directional well, horizontal well and extended reach well horizontal segment; (2) effectively reduce frictional force between the drill string and the borehole wall, avoid the pressure of the drill too much to consume on overcome friction and make the drill bit place can not effectively break the problem of rock, thereby improved rate of penetration; (3) axially impulsive force can effectively destroy the established cutting bed of horizontal segment, and can prevent bit freezing.
Description of drawings
Fig. 1 is the structural representation of a kind of drilling well of the utility model with the pulsatile impact device.
Figure A is the upper shoulder partial enlarged drawing of a kind of drilling well of the utility model with the pulsatile impact device.
Figure B is the lower shoulder partial enlarged drawing of a kind of drilling well of the utility model with the pulsatile impact device.
Among the figure: 1. housing; 2. piston head; 3. go up sealing ring; 4. spring; 5. support end face; 6. upper shoulder; 7. lower shoulder; 8. quiet cover; 9. cavity; 10. lower seal; 11. sliding axle; 12. piston head end face; 13. housing shoulder; 14. quiet cover end face; 15. sliding axle end face.
The specific embodiment
Shown in Fig. 1, figure A and figure B, the pulsatile impact device is used in a kind of drilling well, is made up of housing 1, piston head 2, spring 4, sliding axle 11, quiet cover 8 and last sealing ring 3, lower seal 10 etc.It is characterized in that: piston head 2, is locked in spring 4 between upper shoulder 6 and the lower shoulder 7 to sliding axle 11 through screw fit, and then sliding axle 11 is installed in the housing 1; Upper shoulder 6 is made up of piston head end face 12 and housing shoulder 13 two parts, and lower shoulder 7 is made up of with sliding axle shoulder 15 two parts quiet cover end face 14; Last sealing ring 3 stops drilling fluid to flow into the cavity 9 between sliding axle 11 and the housing 13; Quiet cover 8 is positioned sliding axle 11 in the housing 1 coaxially, and lower seal 10 stops this Returning fluid that installs outside cutting carring to be back to cavity 9; The device stroke is determined by two relative distances that support end face 5, and carries displacement less than the maximum of spring 4; Spring 4 can be used helical spring or disk spring; This device is connected with other instrument through screw thread.
In drilling process; The pressure of the drill is through housing 1 compression spring 4, pass to sliding axle 11 after, act on shaft bottom drill bit or other drilling tool; The decrement of spring 4 and the pressure of the drill, pump pressure big or small closely related, but the maximum that in travel range, can not reach spring is carried displacement.Under the certain situation of the pressure of the drill, when there is pressure oscillation this device lower end, increase fluid pressure, can produce the impulsive force that sliding axle 11 breaks away from housings 1, this device is extended, thereby lower drilling tool and drill bit are travelled forward; And when fluid pressure reduced, sliding axle was 11 motionless, housing 1 travels forward under the effect of the pressure of the drill, and device returns to original state.Along with the continuation of fluid pressure fluctuation, this device constantly travels forward under pulsed force function, thus the well of can improving the standard, the transmission efficiency of the pressure of the drill when extended reach well creeps into, the frictional resistance that minimizing horizontal segment drilling tool moves ahead and creeps into.
Claims (5)
1. the pulsatile impact device is used in a drilling well; Form by housing (1), piston head (2), spring (4), sliding axle (11), quiet cover (8) and last sealing ring (3), lower seal (10) etc.; It is characterized in that: piston head (2) arrives on the sliding axle (11) through screw fit; Spring (4) is locked between upper shoulder (6) and the lower shoulder (7); Then sliding axle (11) is installed in the housing (1), and last sealing ring (3) stops drilling fluid to flow into the cavity (9) between sliding axle (11) and the housing (1); Quiet cover (8) is positioned sliding axle (11) in the housing (1) coaxially, and lower seal (10) stops this Returning fluid that installs outside cutting carring to be back to cavity (9); The device stroke is by two relative distance decisions of supporting end face (5); This device is connected with other instrument through screw thread.
2. the pulsatile impact device is used in a kind of drilling well according to claim 1, it is characterized in that: upper shoulder (6) is made up of piston head end face (12), housing shoulder (13) two parts.
3. the pulsatile impact device is used in a kind of drilling well according to claim 1, it is characterized in that: lower shoulder (7) is made up of quiet cover end face (14), sliding axle shoulder (15) two parts.
4. the pulsatile impact device is used in a kind of drilling well according to claim 1, it is characterized in that: the device stroke carries displacement less than the maximum of spring (4).
5. the pulsatile impact device is used in a kind of drilling well according to claim 1, it is characterized in that: spring (4) can be used helical spring or disk spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202864931U CN202157748U (en) | 2011-08-09 | 2011-08-09 | Pulse impacting device for drilling well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202864931U CN202157748U (en) | 2011-08-09 | 2011-08-09 | Pulse impacting device for drilling well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202157748U true CN202157748U (en) | 2012-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202864931U Expired - Lifetime CN202157748U (en) | 2011-08-09 | 2011-08-09 | Pulse impacting device for drilling well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202157748U (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102587832A (en) * | 2012-03-26 | 2012-07-18 | 西南石油大学 | Pressure resistant tool for reducing frictional resistance of horizontal well section |
| CN102704842A (en) * | 2012-05-30 | 2012-10-03 | 中国石油化工集团公司 | Hydro-oscillator for well drilling |
| CN102704857A (en) * | 2012-06-21 | 2012-10-03 | 中国石油大学(华东) | Underground supercharging and accelerating system |
| CN102747974A (en) * | 2012-06-15 | 2012-10-24 | 中国石油化工股份有限公司 | Well drilling vibrator of horizontal well |
| CN102747957A (en) * | 2012-07-23 | 2012-10-24 | 中国石油大学(华东) | Drilling tool for stimulating vibration of drill column |
| CN103114809A (en) * | 2013-02-06 | 2013-05-22 | 中国石油大学(华东) | Vibration absorption type downhole hydraulic pulse generation device and well drilling method thereof |
| CN103422814A (en) * | 2012-05-15 | 2013-12-04 | 长江大学 | Three-dimensional waterpower vibrator for petroleum drilling |
| CN104213834A (en) * | 2013-06-05 | 2014-12-17 | 中国石油天然气集团公司 | Drag reduction tool and reciprocating axial process method |
| CN104655377A (en) * | 2015-02-10 | 2015-05-27 | 中国石油大学(华东) | Indoor experimental device for antifriction resistance property of axial vibration of petroleum drilling pipe column |
| CN104942742A (en) * | 2015-06-23 | 2015-09-30 | 西南石油大学 | Impact generator and operation method thereof |
| CN105221073A (en) * | 2015-09-18 | 2016-01-06 | 西南石油大学 | Long horizontal sections horizontal well water attack impulse oscillation pressurizing tool |
| CN108301771A (en) * | 2018-04-02 | 2018-07-20 | 四川康克石油科技有限公司 | A kind of Multifunctional pulse flushing device |
| CN110469267A (en) * | 2019-07-31 | 2019-11-19 | 西南石油大学 | The device and method of compound action drag reduction speed-raising is turned round in a kind of drilling process by axis |
-
2011
- 2011-08-09 CN CN2011202864931U patent/CN202157748U/en not_active Expired - Lifetime
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102587832B (en) * | 2012-03-26 | 2014-02-26 | 西南石油大学 | Pressure resistant tool for reducing frictional resistance of horizontal well section |
| CN102587832A (en) * | 2012-03-26 | 2012-07-18 | 西南石油大学 | Pressure resistant tool for reducing frictional resistance of horizontal well section |
| CN103422814B (en) * | 2012-05-15 | 2015-10-21 | 长江大学 | Oil drilling three-dimensional waterpower vibrator |
| CN103422814A (en) * | 2012-05-15 | 2013-12-04 | 长江大学 | Three-dimensional waterpower vibrator for petroleum drilling |
| CN102704842A (en) * | 2012-05-30 | 2012-10-03 | 中国石油化工集团公司 | Hydro-oscillator for well drilling |
| CN102747974A (en) * | 2012-06-15 | 2012-10-24 | 中国石油化工股份有限公司 | Well drilling vibrator of horizontal well |
| CN102704857A (en) * | 2012-06-21 | 2012-10-03 | 中国石油大学(华东) | Underground supercharging and accelerating system |
| CN102704857B (en) * | 2012-06-21 | 2014-06-11 | 中国石油大学(华东) | Underground supercharging and accelerating system |
| CN102747957A (en) * | 2012-07-23 | 2012-10-24 | 中国石油大学(华东) | Drilling tool for stimulating vibration of drill column |
| CN102747957B (en) * | 2012-07-23 | 2014-11-05 | 中国石油大学(华东) | Drilling tool for stimulating vibration of drill column |
| CN103114809A (en) * | 2013-02-06 | 2013-05-22 | 中国石油大学(华东) | Vibration absorption type downhole hydraulic pulse generation device and well drilling method thereof |
| CN103114809B (en) * | 2013-02-06 | 2015-03-11 | 中国石油大学(华东) | Vibration absorption type downhole hydraulic pulse generation device and well drilling method thereof |
| CN104213834A (en) * | 2013-06-05 | 2014-12-17 | 中国石油天然气集团公司 | Drag reduction tool and reciprocating axial process method |
| CN104655377A (en) * | 2015-02-10 | 2015-05-27 | 中国石油大学(华东) | Indoor experimental device for antifriction resistance property of axial vibration of petroleum drilling pipe column |
| CN104655377B (en) * | 2015-02-10 | 2016-05-11 | 中国石油大学(华东) | The axial vibration of oil drilling pipe post subtracts friction loss characteristic indoor experimental apparatus |
| CN104942742A (en) * | 2015-06-23 | 2015-09-30 | 西南石油大学 | Impact generator and operation method thereof |
| CN104942742B (en) * | 2015-06-23 | 2017-01-25 | 西南石油大学 | Impact generator and operation method thereof |
| CN105221073A (en) * | 2015-09-18 | 2016-01-06 | 西南石油大学 | Long horizontal sections horizontal well water attack impulse oscillation pressurizing tool |
| CN108301771A (en) * | 2018-04-02 | 2018-07-20 | 四川康克石油科技有限公司 | A kind of Multifunctional pulse flushing device |
| CN110469267A (en) * | 2019-07-31 | 2019-11-19 | 西南石油大学 | The device and method of compound action drag reduction speed-raising is turned round in a kind of drilling process by axis |
| CN110469267B (en) * | 2019-07-31 | 2021-02-12 | 西南石油大学 | Device and method for reducing drag and increasing speed through shaft-torsion composite action in drilling process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120307 |