CN206346705U - Helmholtz formula reacting cycle pulse pumping drill bit - Google Patents
Helmholtz formula reacting cycle pulse pumping drill bit Download PDFInfo
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- CN206346705U CN206346705U CN201621247696.9U CN201621247696U CN206346705U CN 206346705 U CN206346705 U CN 206346705U CN 201621247696 U CN201621247696 U CN 201621247696U CN 206346705 U CN206346705 U CN 206346705U
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- chamber
- negative pressure
- helmholtz
- pressure pumping
- drill bit
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Abstract
The utility model discloses a kind of Helmholtz formula reacting cycle pulse pumping drill bit, it is characterised in that has installed guiding device, Helmholtz efficient rock-breaking device and negative pressure pumping means additional on the basis of conventional PDC drill bit.Described guiding device includes feeding chamber, water conservancy diversion annular space and guiding region, can replace the flow transition joint of conventional counterflush drilling, realizes that talus glacier is directly entered double-wall drill pipe inner tube from the row's of returning chamber, reduces flow resistance, and rock efficiency is taken in raising；Described Helmholtz efficient rock-breaking device includes upper runner, resonator, impingement wall, lower flow channel, shunting zone, lower jet flow road and wing, based on Helmholtz oscillator, produces pulsing jet by forming large scale collar vortex, improves waterpower auxiliary rock efficiency；Described negative pressure pumping means include reverse high speed runner, negative pressure pumping chamber, hybrid chamber, cushion chamber and the row's of returning chamber, and based on jet pump, by backward jet high speed characteristics in negative pressure pumping chamber formation negative pressure, the backflow of pumping talus glacier reduces chip hold down effect.
Description
Technical field
The utility model belongs to drilling well and Oil/gas Well field, and specific design one kind is taken out for Helmholtz formula reacting cycle pulse
Draw drill bit.
Background technology
The counterflush drilling technology that oil gas drilling is used belongs to rock and soil drilling engineering category, referred to as counterflush drilling,
I.e. all scouring medias circulate the drilling method opposite with traditional direct circulation and are all properly termed as counterflush drilling.With double wall drill tool
Appearance, counterflush drilling is rapidly progressed in rock and soil drilling engineering, in geology, metallurgy, building, water conservancy, coalfield
With the system popularization and application such as military project, well, Geology Drilling, large aperture engineering construction hole, non-excavation laying are related generally to
In terms of the constructions such as underground pipelines.
Representative is double-wall drill pipe counterflush drilling technology, and double-wall drill pipe counterflush drilling skill was proposed from 2004
Art concept.Start within 2005 to carry out feasibility assessment to double-wall drill pipe counterflush drilling technology；Complete within 2006 crucial supporting
The research and development and test of equipment；Probing success by land with sea trial well in 2009；The system introduction in OTC meetings in 2013
Double-wall drill pipe reacting cycle is without marine riser boring method, and counterflush drilling had been enter into business in oil and gas industry abroad and opened in recent years
The hair stage.
Double-wall drill pipe counterflush drilling technology has great advantage in controlled pressure drilling, extended reach well drilling and deepwater drilling,
Such as (1) drilling fluid reacting cycle in tube-in-tube, is realized without marine riser drilling well；(2) double-wall drill pipe serves as electric power and data transfer
Passage；(3) overall process controlled pressure drilling is realized.But because drilling fluid is entered in double-wall drill pipe through flow transition joint by bottom drill tool
Pipe, the suddenly change of runner increases the flow resistance of drilling fluid, strongly limit the clear rock of drilling fluid and takes rock efficiency.
Helmholtz oscillator has simple in construction, no additional drives source, by self structure with regard to that can produce pulsing jet etc.
Advantage, possesses good application prospect.The pulsing jet that it is produced is relatively conventional with its asymmetric, non-homogeneous, unstable characteristic
Stable state jet, can be greatly improved waterpower auxiliary rock efficiency, while being formed about local depression area in drill bit, reduce annulus fluid
Chip hold down effect of the column pressure to bottom rock.Theoretical research and field test prove that pulsing jet has quite in drilling applications
Wide application prospect, and pulsing jet is applied into drill bit design has also proved its feasibility by theoretical and experiment.
Jet pump has been applied on a large scale in fields such as oil recovery, well cementation, and how to be applied to jet pump theory
The clear rock of landwaste, to take rock be a new problem, and the negative pressure pumping theory based on jet pump is applied to the design of new drill
It is a new direction, also provides a kind of new approaches for optimization counterflush drilling.
Utility model content
The purpose of this utility model is to provide a kind of Helmholtz formula reacting cycle pulse pumping drill bit, filled by water conservancy diversion
Put, realize the row's of the returning chamber of drilling fluid and landwaste through Helmholtz formula reacting cycle pulse pumping drill bit and be directly entered in double-wall drill pipe
Pipe, reduces flow resistance, improves drilling fluid and takes rock efficiency；By Helmholtz efficient rock-breaking device, by forming large scale whirlpool
Ring structure produces high-speed pulse jet, improves waterpower auxiliary rock efficiency；By negative pressure pumping means, negative pressure pumping chamber is formed
Negative pressure, pumping landwaste backflow, reduces chip hold down effect, improves rate of penetration.
To achieve the above object, the technical solution adopted in the present invention is as follows：
A kind of new Helmholtz formula reacting cycle pulse pumping drill bit, it is characterised in that on the basis of conventional PDC drill bit
Guiding device, Helmholtz efficient rock-breaking device and negative pressure pumping means are installed additional.
Described guiding device includes feeding chamber, water conservancy diversion annular space and guiding region；Described feeding chamber connects with guide ring Kongxiang
Logical, both axis through feed chamber and guiding region in 150 ° of angles, guide ring Air Export in guiding region；Feed chamber, guide ring
Empty and guiding region is cylindrical structure；The calibers such as chamber and water conservancy diversion annular space are fed, guiding region caliber is 5 times of water conservancy diversion annular space.Bore
Well liquid enters guiding device through double-wall drill pipe outer tube by feeding chamber, and guiding region is flowed into by water conservancy diversion annular space；In guiding region drilling fluid
Separation is realized, Helmholtz efficient rock-breaking device and negative pressure pumping means are flowed to respectively.Guiding device replaces conventional reverse circulation drilling
The flow transition joint of well, realizes the row's of the returning chamber of drilling fluid and landwaste through Helmholtz formula reacting cycle pulse pumping drill bit direct
Into double-wall drill pipe inner tube, reduce the flow resistance of talus glacier, rock efficiency is taken in raising.
Described Helmholtz efficient rock-breaking device includes upper runner, resonator, impingement wall, lower flow channel, shunting zone, lower spray
Runner and wing；Described upper runner, resonator, lower flow channel and shunting zone is docked and connected successively, upper runner entrance and guiding region
It is connected, shunting zone is connected with lower jet flow road；Lower jet flow road and reverse high speed runner are oppositely arranged, and uniform 3 in drill bit
Portion；Described upper runner, resonator, lower flow channel and shunting zone is cylindrical structure；Resonator caliber is the 1.5 of upper runner
Times, lower flow channel caliber is 0.5 times of upper runner, and shunting zone caliber is 2.5 times of upper runner；Impingement wall invests resonator bottom,
It is intersecting in lower flow channel for 150 ° of pyramidal structures.Upper runner is the passage that drilling fluid enters oscillator；The contracted section of lower flow channel makes
Drilling fluid produces pressure transient, and pressure transient is communicated up；The unstable shear layer of drilling fluid produces pressure in resonator
Perturbation wave, and collided with impingement wall；Shunting zone is connected with lower jet flow road, realizes assignment of traffic.
Described negative pressure pumping means include reverse high speed runner, negative pressure pumping chamber, hybrid chamber, cushion chamber and the row's of returning chamber；
Described reverse high speed runner, hybrid chamber, cushion chamber and the row's of returning chamber is docked and connected successively, reverse high speed flow channel entry point and guiding region
It is docked and connected；Negative pressure pumping chamber entrance connects in drill bit outer wall with hybrid chamber in 120 ° of angles, while being friendship with water conservancy diversion annular space
Fork is set.Negative pressure pumping chamber, hybrid chamber and cushion chamber are cylindrical structure, and the row's of returning chamber is 60 ° of taper configurations and cushion chamber pair
Lead in succession, the caliber such as negative pressure pumping chamber, hybrid chamber and cushion chamber.Negative pressure pumping means are based on jet pump, by reverse high velocity stream
The fluid high-speed characteristic in road produces negative pressure, pumping landwaste and drilling fluid return in negative pressure pumping chamber, reduces chip hold down effect, improves and bores
The clear rock efficiency of well liquid.
In summary, compared with prior art, the utility model has advantages below：
(1) guiding device replaces the flow transition joint of conventional counterflush drilling, realizes drilling fluid and landwaste from conspicuous nurse
The row's of returning chamber of Huo Zishi reacting cycle pulse pumping drill bits is directly entered double-wall drill pipe inner tube, reduces the flow resistance of drilling fluid,
Improve drilling fluid and take rock efficiency.
(2) helmholtz resonance cavity configuration is simple, no additional drives source, by the collar vortex knot of self structure formation large scale
Structure, pulsing jet is converted to by stable state jet beam；Relative to conventional solid jet, pulsing jet is non-homogeneous, asymmetric, unstable
Rock fracture in dynamic indentation, improves the ability of waterpower auxiliary rock and drilling fluid bottom-hole cleaning；
(3) negative pressure pumping means are taken out by the fluid high-speed characteristic of reverse high speed runner in negative pressure pumping chamber generation negative pressure
Landwaste and drilling fluid return are drawn, reduces chip hold down effect, the clear rock efficiency of rate of penetration and drilling fluid is improved.
Brief description of the drawings
Fig. 1 is a kind of Helmholtz formula reacting cycle pulse pumping drill bit schematic diagram.
Fig. 2 is Fig. 1 left view schematic diagram.
Fig. 3 is A-A diagrammatic cross-sections in Fig. 1.
Fig. 4 is B-B diagrammatic cross-sections in Fig. 1.
Fig. 5 is C-C diagrammatic cross-sections in Fig. 1.
Fig. 6 is D-D diagrammatic cross-sections in Fig. 1.
Fig. 7 is E-E diagrammatic cross-sections in Fig. 1.
Fig. 8 regards schematic diagram for Fig. 1 right side.
Fig. 9 is reverse high speed runner schematic diagram.
Figure 10 is lower jet flow road schematic diagram.
In Fig. 1：1st, guiding device, 101, feeding chamber 102, water conservancy diversion annular space, 103, guiding region；2nd, Helmholtz efficient rock-breaking
Device, 201, upper runner, 202, resonator, 203, impingement wall, 204, lower flow channel, 205, shunting zone, 206, lower jet flow road, 207,
Wing；3rd, negative pressure pumping means, 301, reverse high speed runner, 302, negative pressure pumping chamber, 303, hybrid chamber, 304, cushion chamber,
305th, the row's of returning chamber.
Embodiment
Below in conjunction with accompanying drawing, illustrate embodiment proposed by the present invention, structure, feature and its effect, describe in detail
It is as follows：
A kind of new Helmholtz formula reacting cycle pulse pumping drill bit, it is characterised in that on the basis of conventional PDC drill bit
Guiding device 1, Helmholtz efficient rock-breaking device 2 and negative pressure pumping means 3 are installed additional.
Guiding device 1 includes feeding chamber 101, water conservancy diversion annular space 102 and guiding region 103；Feed chamber 101 and water conservancy diversion annular space 102
It is connected, both axis are exported in guiding region 103 in 150 ° of angles, water conservancy diversion annular space 102, through feed chamber 101 and guiding region
103；It is cylindrical structure to feed chamber 101, water conservancy diversion annular space 102 and guiding region 103；Feed chamber 101 and the grade pipe of water conservancy diversion annular space 102
Footpath, the caliber of guiding region 103 is 5 times of water conservancy diversion annular space 102.Guiding device 1 replaces the flow transition joint of conventional counterflush drilling,
The row's of the returning chamber 305 for realizing drilling fluid and landwaste from Helmholtz formula reacting cycle pulse pumping drill bit is directly entered in double-wall drill pipe
Pipe, improves drilling fluid and takes rock efficiency.
Helmholtz efficient rock-breaking device 2 includes upper runner 201, resonator 202, impingement wall 203, lower flow channel 204, shunting
Area 205, lower jet flow road 206 and wing 207；Described upper runner 201, resonator 202, lower flow channel 204 and shunting zone 205 is successively
It is docked and connected, the entrance of upper runner 201 is connected with guiding region 103, shunting zone 205 is connected with lower jet flow road 206；Lower jet flow road
206 is oppositely arranged with reverse high speed runner 301, and uniform 3 in drill bit end；Described upper runner 201, resonator 202, flow down
Road 204 and shunting zone 205 are cylindrical structure；The caliber of resonator 202 is 1.5 times of upper runner 201, the caliber of lower flow channel 204
It is 0.5 times of upper runner 201, the caliber of shunting zone 205 is 2.5 times of upper runner 201；Impingement wall 203 invests the bottom of resonator 202
Portion, is that 150 ° of pyramidal structures are intersecting in lower flow channel 204.Upper runner 201 is that drilling fluid enters Helmholtz efficient rock-breaking device 2
Passage；The contracted section of lower flow channel 204 makes drilling fluid produce pressure transient, and pressure transient is communicated up；Drilling fluid is not
Steady shear layer produces pressure disturbance ripple in resonator 202, and is collided with impingement wall 203；Shunting zone 205 and lower jet flow road
206 are connected, and realize assignment of traffic.
Negative pressure pumping means 3 include reverse high speed runner 301, negative pressure pumping chamber 302, hybrid chamber 303, the and of cushion chamber 304
The row's of returning chamber 305；Described reverse high speed runner 301, hybrid chamber 303, cushion chamber 304 and the row's of returning chamber 305 is docked and connected successively, instead
It is docked and connected to the entrance of high speed runner 301 with guiding region 103；The entrance of negative pressure pumping chamber 302 is in drill bit outer wall, with hybrid chamber 303
Connected in 120 ° of angles, while being arranged in a crossed manner with water conservancy diversion annular space 102.Negative pressure pumping chamber 302, hybrid chamber 303 and cushion chamber
304 be cylindrical structure, and the row's of returning chamber 305 is that 60 ° of taper configurations are docked and connected with cushion chamber, negative pressure pumping chamber 302, hybrid chamber
303 and the grade caliber of cushion chamber 304.Negative pressure pumping means 3 are based on jet pump, and the fluid high-speed characteristic by reverse high speed runner exists
Negative pressure pumping chamber 302 produces negative pressure, pumping landwaste and drilling fluid return, reduces chip hold down effect, improves the clear rock efficiency of drilling fluid.
The course of work of Helmholtz formula reacting cycle pulse pumping drill bit of the present utility model is as follows：
Drilling fluid is directly entered guiding device 1 by double-wall drill pipe outer tube through feeding chamber 101, flows into and leads through water conservancy diversion annular space 102
Flow area 103；In guiding region 103, drilling fluid realizes shunting, and Helmholtz efficient rock-breaking device 2 and negative pressure pumping are flowed to respectively
Device 3.Dirty drilling fluid enters Helmholtz efficient rock-breaking device 2 through upper runner 201, forms swiftly flowing jet beam,
And enter resonator 202；In resonator 202, the unstable shear layer of jet beam produces pressure disturbance ripple；While jet line
Through lower flow channel 204, acted on through contracted section, produce pressure transient and upstream reflected with the velocity of sound；Upstream jet beam and impingement wall
203 collide reflection；The pressure disturbance ripple that the pressure transient produced through lower flow channel 204 is produced with high-speed jet beam shear layer exists
Interfered in resonator 202, form the collar vortex structure of large scale.In the presence of large scale eddy ring structure, jet beam transformation
Into interrupted vortex, so as to obtain pulsing jet.Obtained pulsing jet flows into lower jet flow road 206 through shunting zone 205, through lower jet flow
Road 206 sprays, and asymmetric, non-homogeneous waterpower aids in efficient rock-breaking, while the mechanical rock breaking of wing 207.On the drilling fluid that returns through anti-
Enter negative pressure pumping means 3 to high speed runner 301, in the presence of the reverse contracted section of high speed runner 301, drilling fluid is changed
For reverse high-speed jet, by its high speed characteristics, drilling fluid produces negative pressure in negative pressure pumping chamber 302, and negative pressure pumping chamber 302 is with boring
Head outer wall is connected, talus glacier backflow of the pumping after the broken rock of Helmholtz efficient rock-breaking device 2, and rock is realized in hybrid chamber 303
Bits stream and the mixing of reverse high-speed jet, mixed talus glacier are reduced cocurrent in the speed of cushion chamber 304 and outwards arrange chamber
305, double-wall drill pipe inner tube is flowed into after the further reduction of speed of the outer pyramidal structure of row's chamber 305.
Claims (1)
1. a kind of new Helmholtz formula reacting cycle pulse pumping drill bit, it is characterised in that add on the basis of conventional PDC drill bit
Guiding device, Helmholtz efficient rock-breaking device and negative pressure pumping means are filled：
Described guiding device includes feeding chamber, water conservancy diversion annular space and guiding region；Described feeding chamber is connected with guide ring Kongxiang, and two
Person's axis through feeds chamber and guiding region in 150 ° of angles, guide ring Air Export in guiding region；Feed chamber, water conservancy diversion annular space and
Guiding region is cylindrical structure；The calibers such as chamber and water conservancy diversion annular space are fed, guiding region caliber is 5 times of water conservancy diversion annular space；
Described Helmholtz efficient rock-breaking device includes upper runner, resonator, impingement wall, lower flow channel, shunting zone, lower jet flow road
And wing；Described upper runner, resonator, lower flow channel and shunting zone is docked and connected successively, and upper runner entrance is connected with guiding region
Logical, shunting zone is connected with lower jet flow road；Lower jet flow road and reverse high speed runner are oppositely arranged, and uniform 3 in drill bit end；Institute
Upper runner, resonator, lower flow channel and the shunting zone stated are cylindrical structure；Resonator caliber is 1.5 times of upper runner, is flowed down
Road caliber is 0.5 times of upper runner, and shunting zone caliber is 2.5 times of upper runner；Impingement wall invests resonator bottom, is 150 ° of cones
Shape structure is intersecting in lower flow channel；
Described negative pressure pumping means include reverse high speed runner, negative pressure pumping chamber, hybrid chamber, cushion chamber and the row's of returning chamber；It is described
Reverse high speed runner, hybrid chamber, cushion chamber and the row's of returning chamber be docked and connected successively, reverse high speed flow channel entry point is docked with guiding region
Connection, negative pressure pumping chamber entrance connects in drill bit outer wall with hybrid chamber in 120 ° of angles, arranged in a crossed manner with water conservancy diversion annular space；It is negative
Pressure pumping chamber, hybrid chamber and cushion chamber are cylindrical structure, and the row's of returning chamber is that 60 ° of taper configurations are wanted to be docked and connected with cushion chamber,
The calibers such as negative pressure pumping chamber, hybrid chamber and cushion chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621247696.9U CN206346705U (en) | 2016-11-22 | 2016-11-22 | Helmholtz formula reacting cycle pulse pumping drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621247696.9U CN206346705U (en) | 2016-11-22 | 2016-11-22 | Helmholtz formula reacting cycle pulse pumping drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206346705U true CN206346705U (en) | 2017-07-21 |
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ID=59322999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621247696.9U Expired - Fee Related CN206346705U (en) | 2016-11-22 | 2016-11-22 | Helmholtz formula reacting cycle pulse pumping drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206346705U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108915619A (en) * | 2018-07-06 | 2018-11-30 | 中国石油大学(北京) | A kind of concentric tube landwaste suction crushing device suitable for double-gradient well drilling |
| CN115788392A (en) * | 2023-02-07 | 2023-03-14 | 西南石油大学 | Pulse oscillation rotational flow resistance-increasing type water-control oil-stabilizing device |
-
2016
- 2016-11-22 CN CN201621247696.9U patent/CN206346705U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108915619A (en) * | 2018-07-06 | 2018-11-30 | 中国石油大学(北京) | A kind of concentric tube landwaste suction crushing device suitable for double-gradient well drilling |
| CN115788392A (en) * | 2023-02-07 | 2023-03-14 | 西南石油大学 | Pulse oscillation rotational flow resistance-increasing type water-control oil-stabilizing device |
| CN115788392B (en) * | 2023-02-07 | 2023-04-11 | 西南石油大学 | Pulse oscillation rotational flow resistance-increasing type water-control oil-stabilizing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170721 Termination date: 20171122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |