CN206111093U - Pulse internal grinding drill bit is spouted soon at center - Google Patents
Pulse internal grinding drill bit is spouted soon at center Download PDFInfo
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- CN206111093U CN206111093U CN201621148101.4U CN201621148101U CN206111093U CN 206111093 U CN206111093 U CN 206111093U CN 201621148101 U CN201621148101 U CN 201621148101U CN 206111093 U CN206111093 U CN 206111093U
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Abstract
The utility model discloses a pulse internal grinding drill bit is spouted soon at center. Be different from conventional PDC drill bit, pulse formation device has been installed additional in this design, rock device, negative pressure pumping device and detritus internal grinding device are spouted brokenly soon to the center. The pulse generates that the device includes the drilling fluid runner, feeds the chamber, resonant cavity, resonating tube export and flow -splitting region, based on organ pipe, produces pulse jet through arousing liquid resonance, the rock device is spouted brokenly including spouting down other branch fluid channel, spout central autogyration runner, center from rotating nozzle, wing down soon in the center, based on spout down other branch fluid channel with from rotating nozzle intercoordination, improve and break the rock, settle rock efficiency, negative pressure pumping device is including reverse high -speed runner, pumping chamber, forms the negative pressure in the pumping chamber based on the high -speed characteristic of backward -jet, and the pumping detritus reduces the chip hold down effect, detritus internal grinding device includes hybrid chamber, throat, accelerating cavity, internal grinding chamber, the internal grinding body, bypass and diffusion cavity smashes the detritus based on high pressure force, water wedge effect, improves rock carrying efficiency, clears away cuttings bed.
Description
Technical field
This utility model belongs to oil gas well drilling field, crusher drill in a kind of center churning pulse of specific design.
Background technology
In horizontal well drilling, often due to taking, rock is unfavorable, clear rock causes not in time talus deposit, especially bulky grain rock
Bits, once landwaste is without effectively cutting shaft bottom is departed from, and cannot just be returned to shaft bottom and be implemented to crush.Thus cutting bed is produced, seriously
Rate of penetration and drilling cost are govern, causes to suppress pump, bit bouncing, or even the generation of the drilling complexity accident such as bit freezing.Conventional solution
Certainly method mostly improves drilling speed, increase discharge capacity, addition lubricant, and by putting in short distance drilling tool is put, will be big near drill bit
Granule landwaste pushes back shaft bottom and repeats broken, although has certain effect, but is reduction of rate of penetration, it is impossible to timely and effective solution
The cutting bed of drilling mid-term.The reason for generation cutting bed one is critically important is exactly that bulky grain landwaste cannot be crushed effectively, front
People studies and field test all fully proves that the rock efficiency of taking of small size landwaste is significantly greater than large scale landwaste.Therefore by landwaste
Crushing can preferably remove horizontal well cutting bed for less granule.
Hydraulic drilling technology is applied on a large scale in mechanical drilling applications, and good effect is achieved at the scene
Benefit, based on the theoretical spinning nozzle of water jet in horizontal well drilling, shear tension efficiency of breaking rock height, little frictional resistance, life-span length,
Stable working；Based on jet theory, with reference to general pulse nozzle and center spinning nozzle waterpower auxiliary rock, to obtaining more
Broken rock well and large rock-clearing effect.
Pulsing jet can improve waterpower auxiliary with its asymmetric, non-homogeneous, unstable characteristic, relatively conventional stable state jet
Efficiency of breaking rock, theoretical research and field test prove that pulsing jet has broad application prospects in mechanical drilling applications.
Jet pump is 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 but a new problem, and the negative pressure pumping theory that will be based on jet pump is applied to the design of new drill
To be a new direction, to remove horizontal well cutting bed a kind of new approaches will be provided.
Utility model content
First purpose of the present utility model is to improve rate of penetration using pulsing jet and spinning injection stream.For reality
Existing first purpose, crusher drill devises resonatron in the churning pulse of this utility model center, can uniformly add in Xia Pen collateral branch runner
3 general pulse nozzles are filled, in Xia Pen centers spinning runner 1 spinning nozzle has been installed additional.
Described resonatron is made up of parts such as drilling fluid runner, feeding chamber, resonator cavity, resonatron outlet, shunting zones, base
In liquid resonant, pulsing jet is produced.Each several part is designed as coaxial circle cylindrical configuration, is mutually butted connection, and wherein shunting zone goes out
Mouth and reverse high speed runner, Xia Pen collateral branch runner, Xia Pen centers spinning flow passage；And optimize caliber and be：Feeding lumen footpath
For 1.2 times of drilling fluid runner caliber, resonator cavity caliber is 0.8 times of runner, and resonatron outlet caliber is 0.5 times of runner,
Shunting zone caliber is 2 times of runner.
Drilling fluid runner, feeding chamber are the passages that drilling fluid enters resonatron；Resonatron outlet produces initial pressure fluctuation,
And initial pressure fluctuation is fed back to into resonator cavity；Resonator cavity：Initial pressure fluctuation and resonator cavity natural frequency phase when feedback
Timing, excites liquid resonant, produces high-speed eddy, obtains pulsing jet；Shunting zone and lower jet flow road and reverse high speed runner phase
Connection, realizes assignment of traffic.
Xia Pen collateral branch runner and Xia Pen centers spinning runner, are connected with shunting zone, export in drill bit end, lower spray
Collateral branch's runner inside can uniformly install 3 general pulse nozzles, and spinning runner in Xia Pen centers is provided with 1 spinning nozzle,
Can waterpower auxiliary efficient rock-breaking, realize clear rock, cooling and lubricating drill bit and the cutting carring of drill bit bottom.
Spinning nozzle is arranged on Xia Pen centers spinning runner, by spinning center axis body, positive nozzle, lateral spray
The part such as mouth, nozzle housing, self-rotating body constitutes.Fluid flows through the forward direction of spinning nozzle and lateral nozzle, produce it is positive and
Lateral jet, positive jet shear tension broken rock, periodic shock, surface sweeping formula broken rock；Lateral jet provides drill bit from power is entered, real
Show spinning of the self-rotating body around spinning center axis body, and play the role of reaming, improve broken rock, clear rock efficiency.
Xia Pen collateral branch runner is mutually coordinated between lower jet flow road around circumferentially uniform 3, center spinning nozzle, strengthens water
Power auxiliary rock-breaking effect, improves the clear rock efficiency of drilling fluid.
It is to be considered to be worth doing using backward jet swabbing well bed rock that second purpose of the present utility model is, reduces chip hold down effect, is improved
Rate of penetration.To realize the second purpose, crusher drill devises reverse high speed runner, takes out in churning pulse in center of the present utility model
Draw chamber.Reversely high speed runner is connected with shunting zone, exports in mixing intracavity, based on jet pump principle, by backward jet
High speed characteristics, in pumping chamber negative pressure is produced, and is returned on pumping landwaste；Pumping chamber is connected with drill bit end chip area, exports mixed
Chamber is closed, is the passage returned in landwaste pumping.Backward jet forms negative pressuren zone in pumping chamber, and mixing is returned and entered on pumping landwaste
Chamber.
3rd purpose of the present utility model is to reduce landwaste particle diameter, and well of improving the standard takes rock efficiency, Cutting Disposal.For
Realize the 3rd purpose, crusher drill devises interior mill structure in the churning pulse of this utility model center, including hybrid chamber, venturi, plus
Fast chamber, inner grinding cavity, interior mill body, bypass and diffusion chamber.
Hybrid chamber is connected with pumping chamber and reverse high speed runner, outlet be docked and connected with venturi, realize landwaste with it is reverse
The mixing of high-velocity fluid；High-voltage pulse jet Jing nozzle at high speeds sprays, and pressure discharges rapidly, and in mixing intracavity negative pressure is formed,
In the presence of negative pressure, landwaste forms biphase High Speed Turbulent by high-speed jet beam pumping.
Venturi is docked and connected with accelerating cavity, is designed as cylindrical structure, and caliber is 0.5 times of accelerating tube, to reduce fluid
Resistance, fully accelerates landwaste, and its contracted section strengthens backward jet impulsive force.
Accelerating cavity is interconnected with inner grinding cavity, is designed as cylindrical structure, to avoid attached jet and improve jet energy profit
With rate.Accelerate landwaste by drilling fluid viscous force, realize the energy transmission between main fluid and landwaste.
Inner grinding cavity is connected with accelerating cavity, and inner grinding cavity is prismatic configuration, and cross section is external for accelerating cavity circular cross-section
Regular hexagon, axis is in 138 ° of angles with acceleration cavity axis；Interior mill body is invested in inner grinding cavity, just to accelerating cavity, to reduce drilling well
Liquid resistance, landwaste is effectively crushed, using the high-pressure forces between pellet-pellet and granule-interior mill body, water wedge effect rock is crushed
Bits.
Diffusion chamber and bypass are connected with inner grinding cavity, are cylindrical structure, and diffusion cavity axis are in 138 ° with inner grinding cavity
Angle simultaneously connects annular space, bypasses and inner grinding cavity coaxial line, to reduce impact of the talus glacier to the borehole wall.When talus glacier speed lowers it
Afterwards, annular space will be entered outside the landwaste after crushing.
In sum, compared with prior art, this utility model has the advantages that：
(1) stabilized fluid for circulating drilling is converted to pulsing jet by resonatron, and relative to conventional solid jet, pulse is penetrated
Non-homogeneous, asymmetric, the unstable impact rock of stream, improves the ability of drilling fluid waterpower auxiliary rock；
(2) spinning nozzle is different from conventional rock fracture in dynamic indentation, jet shear tension broken rock, efficiency high, and power consumption is little, rub
Little, life-span length, stable working are hindered, broken rock and clear rock efficiency can be improved；Nozzle spinning provides drill bit centripetal force；
(3) Xia Pen collateral branch runner and the coordinative role of center spinning nozzle, strengthen waterpower auxiliary rock ability, improve clear
Rock efficiency；
(4) the reversely presence of high speed runner, the high speed of fluid produces local decompression in drill bit bottom, and pumping landwaste subtracts
Little chip hold down effect, improves rate of penetration；
(5) interior grinding structure further crushes cutting grain, reduces grain diameter, and beneficial to drilling fluid rock is taken, and removes level
Well cutting bed.
Description of the drawings
Fig. 1 is crusher drill schematic diagram in a kind of center churning pulse.
Fig. 2 is spinning nozzle schematic diagram.
Fig. 3 is A-A generalized sections in Fig. 1.
Fig. 4 is B-B generalized sections in Fig. 1.
Fig. 5 is C-C generalized sections in Fig. 1.
Fig. 6 is D-D generalized sections in Fig. 1.
Fig. 7 is E-E generalized sections in Fig. 1.
Fig. 8 regards schematic diagram for the right side of Fig. 1.
In Fig. 1：1st, diffusion chamber, 2, bypass, 3, inner grinding cavity, 4, accelerating cavity, 5, shunting zone, 6, hybrid chamber, 7, pumping chamber, 8,
Xia Pen collateral branch runner, 9, Xia Pen centers spinning runner, 10, drilling fluid runner, 11, feeding chamber, 12, interior mill body, 13, resonance
Chamber, 14, drill body, 15, resonatron outlet, 16, venturi, 17, reverse high speed runner, 18, wing, 19, spinning nozzle.
In Fig. 2：20th, spinning center axis body, 21, lateral nozzle, 22, nozzle housing, 23, self-rotating body, 24, positive spray
Mouth.
Specific embodiment
As shown in figure 1, a kind of be used for crusher drill in the churning pulse of center, including：1st, diffusion chamber, 2, bypass, 3, inner grinding cavity,
4th, accelerating cavity, 5, shunting zone, 6, hybrid chamber, 7, pumping chamber, 8, Xia Pen collateral branch runner, 9, Xia Pen centers spinning runner, 10, bore
Well liquid runner, 11, feeding chamber, 12, interior mill body, 13, resonator cavity, 14, drill body, 15, resonatron outlet, 16, venturi, 17,
Reverse high speed runner, 18, wing, 19, spinning nozzle.Spinning nozzle includes：20th, spinning center axis body, 21, lateral spray
Mouth, 22, nozzle housing, 23, self-rotating body, 24, positive nozzle.Predominantly four parts：Pulse generating portion, center churning are broken
Mill part in part and granule is returned on petrosa point, negative pressure pumping.
Pulse generating portion includes drilling fluid runner 10, feeding chamber 11, resonator cavity 13, resonatron outlet 15 and shunting zone 5,
Produce pulsing jet.As shown in figure 1, stable drilling fluid Jing drilling fluids runner 10, feeding chamber 11 enter resonatron, resonance is flowed through
During pipe outlet 15, initial pressure fluctuation is produced under contracted section effect；The pressure oscillation of generation is fed back to resonator cavity 13, when
When the frequency of pressure oscillation matches with the natural frequency of resonator cavity 13, liquid resonant is excited, high-speed eddy is produced, so as in resonance
Pulsing jet is obtained in chamber 13；Pulsing jet shunting zone 5 flow to respectively reverse high speed runner 17, Xia Pen collateral branch runner 8 and under
Spray center spinning runner 9.
Center churning broken rock part includes spinning nozzle 19, Xia Pen collateral branch runner 8, the and of Xia Pen centers spinning runner 9
Wing 18.Spinning nozzle 19 is by spinning center axis body 20, positive nozzle 24, lateral nozzle 21, nozzle housing 22, spinning
Body 23 is constituted, wing mechanical rock breaking, spinning nozzle waterpower auxiliary rock.As depicted in figs. 1 and 2, the high-speed pulse of lower spray is penetrated
Flow through Xia Pen centers spinning runner 9, the positive nozzle 24 and lateral nozzle 21 of Jing spinnings nozzle 19 spray, produce it is positive and
Lateral jet, positive jet rotary impact forms circular broken rock face by shearing, stretching action in shaft bottom, and backward jet by
In there is reverse subtended angle and eccentric throw, centripetal force and rotary power are provided for drill bit, realizing self-rotating body 23 around spinning center
The spinning of axis body 20.Spray with the high-speed pulse jet Jing Xia Pen collateral branch runner 8 for spraying at present, form pulsing jet.Spinning
Asymmetric, the uneven jet that nozzle 19 is produced combines pulsing jet waterpower auxiliary efficient rock-breaking, the agitation of Xia Pen collateral branch runner 8
With cleaning landwaste, and the landwaste for carrying the cutting of Jing wings 18 as main fluid enters pumping chamber 7.
Negative pressure pumping part includes reverse high speed runner 17, pumping chamber 7, returns on pumping landwaste, reduces chip hold down effect.As schemed
Shown in 1, the reverse high speed runner of the pulsing jet Jing that above returns sprays, and forms reversely high energy-gathering jetting, its high speed characteristics pumping chamber-
Negative pressure is formed on drill bit bottom, and under suction function, high concentration landwaste is pumped disengaging shaft bottom, realizes being backflowed with hybrid chamber 6
The mixing of body.
Mill part includes hybrid chamber 6, venturi 16, accelerating cavity 4, inner grinding cavity 3, interior mill body 12, bypass 2 and diffusion chamber in landwaste
1, reduce landwaste particle diameter, beneficial to taking rock.As shown in figure 1, the mixed drilling fluid-landwaste in blended chamber 6 flows through venturi 16 and enters
Accelerating cavity 4, due to the effect of drilling fluid viscous force, landwaste is accelerated and is collided with interior mill body 12 in inner grinding cavity 3；Including
In mill chamber 3, by the high-pressure forces between granule and granule, granule and interior mill body 12, water wedge effect, landwaste is crushed, its
Jing diffusion chambers 1 are discharged with bypass 2 after speed lowers.
Claims (2)
1. crusher drill in a kind of new center churning pulse, it is characterised in that installed pulse generation device, center churning broken rock additional
Mill apparatus in device, negative pressure pumping means and landwaste：
Described pulse generation device includes drilling fluid runner, feeding chamber, resonator cavity, resonatron outlet and shunting zone；Drilling fluid
Runner, feeding chamber, resonator cavity, resonatron outlet be docked and connected successively with shunting zone, shunting zone export with reverse high speed runner, under
Spray collateral branch runner, the connection of Xia Pen centers spinning flow channel entry point；Each several part is coaxial circle cylindrical configuration；Feeding lumen footpath is to bore
1.2 times of well liquid runner, resonator cavity caliber is 0.8 times of runner, and resonatron outlet caliber is 0.5 times of runner, and shunting zone is managed
Footpath is 2 times of runner；
Described center churning broken rock device includes Xia Pen collateral branch runner, Xia Pen centers spinning runner, 1 center spinning spray
Mouth, wing, Xia Pen collateral branch runner is connected with Xia Pen centers spinning runner with shunting zone, exports in drill bit end, lower spray
3 impulse jet nozzles can be uniformly installed in collateral branch's runner, 1 spinning nozzle is installed in Xia Pen centers spinning runner；
Described negative pressure pumping means include reverse high speed runner, pumping chamber；Reversely high speed runner is connected with shunting zone, exports
In hybrid chamber；Pumping chamber connects with drill bit end chip area, exports in hybrid chamber；
Mill apparatus include hybrid chamber, venturi, accelerating cavity, inner grinding cavity, interior mill body, bypass and diffusion chamber in described landwaste；Mixing
Chamber outer end and pumping chamber, reverse high speed flow passage, the inner is docked and connected with venturi；Venturi is docked and connected with accelerating cavity, is round
Cylindrical configuration, caliber is 0.5 times of accelerating cavity caliber；Inner grinding cavity is connected with accelerating cavity, and accelerating cavity is cylindrical structure, interior mill
Chamber is prismatic configuration, and inner grinding cavity cross section is the external regular hexagon of accelerating cavity circular cross-section, and both axis are in 138 ° of angles；
Interior mill body invests inner grinding cavity inwall, and just accelerating cavity is exported；Bypass and diffusion chamber are connected with inner grinding cavity, and bypass is total to inner grinding cavity
Axis, diffusion cavity axis are in 138 ° of angles with inner grinding cavity.
2. crusher drill in churning pulse in center according to claim 1, it is characterised in that Xia Pen collateral branch runner can uniformly pacify
3 collateral branch's impulse jet nozzles are filled, spinning runner in Xia Pen centers is provided with 1 center spinning nozzle, wherein Xia Pen collateral branch runner
Around circumferentially uniform 3, center spinning nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621148101.4U CN206111093U (en) | 2016-10-24 | 2016-10-24 | Pulse internal grinding drill bit is spouted soon at center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621148101.4U CN206111093U (en) | 2016-10-24 | 2016-10-24 | Pulse internal grinding drill bit is spouted soon at center |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206111093U true CN206111093U (en) | 2017-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621148101.4U Expired - Fee Related CN206111093U (en) | 2016-10-24 | 2016-10-24 | Pulse internal grinding drill bit is spouted soon at center |
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| Country | Link |
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| CN (1) | CN206111093U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107386987A (en) * | 2017-08-23 | 2017-11-24 | 中国石油大学(北京) | Interior chip removal jet stream decompression drill bit |
| CN107605403A (en) * | 2017-11-01 | 2018-01-19 | 中煤科工集团西安研究院有限公司 | Spinning high-pressure water jet adjusting drilling aperture apparatus |
| CN108049814A (en) * | 2017-12-08 | 2018-05-18 | 长江大学 | A kind of drilling tool for injecting simultaneously circulating particle |
| CN112727390A (en) * | 2020-12-31 | 2021-04-30 | 西南石油大学 | Rock debris collecting device for mechanical rock breaking test and drilling evaluation method |
-
2016
- 2016-10-24 CN CN201621148101.4U patent/CN206111093U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107386987A (en) * | 2017-08-23 | 2017-11-24 | 中国石油大学(北京) | Interior chip removal jet stream decompression drill bit |
| CN107386987B (en) * | 2017-08-23 | 2023-09-26 | 中国石油大学(北京) | Internal chip removal jet flow pressure reducing drill bit |
| CN107605403A (en) * | 2017-11-01 | 2018-01-19 | 中煤科工集团西安研究院有限公司 | Spinning high-pressure water jet adjusting drilling aperture apparatus |
| CN107605403B (en) * | 2017-11-01 | 2019-06-18 | 中煤科工集团西安研究院有限公司 | Spinning high-pressure water jet adjusting drilling aperture apparatus |
| CN108049814A (en) * | 2017-12-08 | 2018-05-18 | 长江大学 | A kind of drilling tool for injecting simultaneously circulating particle |
| CN108049814B (en) * | 2017-12-08 | 2019-04-30 | 长江大学 | A kind of drilling tool injecting simultaneously circulating particle |
| CN112727390A (en) * | 2020-12-31 | 2021-04-30 | 西南石油大学 | Rock debris collecting device for mechanical rock breaking test and drilling evaluation method |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170419 Termination date: 20171024 |
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| CF01 | Termination of patent right due to non-payment of annual fee |