CN110005342A - The PDC drill bit of fluidic oscillation realization rock fracture in dynamic indentation - Google Patents
The PDC drill bit of fluidic oscillation realization rock fracture in dynamic indentation Download PDFInfo
- Publication number
- CN110005342A CN110005342A CN201910329215.0A CN201910329215A CN110005342A CN 110005342 A CN110005342 A CN 110005342A CN 201910329215 A CN201910329215 A CN 201910329215A CN 110005342 A CN110005342 A CN 110005342A
- Authority
- CN
- China
- Prior art keywords
- fluidic oscillation
- runner
- drill bit
- nipple
- fluidic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B12/00—Accessories for drilling tools
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
Abstract
The invention discloses the PDC drill bits that a kind of fluidic oscillation realizes rock fracture in dynamic indentation, are made of nipple, shop bolt, fluidic oscillation pipe nipple, drill body, fluid inlet, annular channel, incident runner, right feedback runner, right flow manifold, left shunt runner, left feedback runner, fluidic oscillation chamber, fluid outlet.Drilling fluid enters fluidic oscillation from nipple and realizes inside the PDC drill bit of rock fracture in dynamic indentation, after fluidic oscillation pipe nipple, it is flowed out from bit port, when drilling fluid passes through fluidic oscillation pipe nipple, drilling fluid switches in the annular channel circulation of design with direction, when drilling fluid completes a direction switching, pressure oscillation will be generated, fluidic oscillation is formed, the fluidic oscillation function of generating in handoff procedure using drilling fluid accelerates drill bit broken rock.It is of the invention can fluidic oscillation realize that the PDC drill bit of rock fracture in dynamic indentation can be effectively reduced new construction and design influence to drill bit PDC tooth, have fluidic oscillation function, improve drill bit efficiency of breaking rock.
Description
Technical field
The present invention relates to the PDC brills that a kind of fluidic oscillation suitable for oil and gas well drilling engineering realizes rock fracture in dynamic indentation
Head is equally applicable to the drilling equipments technical fields such as mine engineering, building foundation engineering construction, geology, the hydrology.
Background technique
In modern petroleum gas drilling engineering, drill bit as drilling equipment key technology equip one of, directly with ground
Layer contact, catalase under the action of bit pressure and drilling torque form determining wellbore according to Drilling Design.The work of drill bit
Performance has great influence to drilling efficiency and production cost, and bit operation performance is stablized, then service life will be mentioned significantly
Height reduces the number that makes a trip, and saves economic cost, therefore the drill bit of all kinds of function admirables of R & D design is always petroleum gas
The important directions in technical equipment field.With the continuous development of industrial technology, Design of Mechanical Structure, processing technology, material technology
Etc. being gradually increased, rock bit, PDC drill bit and all kinds of composite drill bit technologies have all obtained significant progress.
But under Novel oil gas resources supplIes, especially horizontal well, in extended reach well drilling technology, it is desirable that realize drill bit
Efficient rock-breaking, improve rate of penetration, shorten drilling period, therefore to drill bit design and drill bit function propose new want
It asks.Optimize cloth tooth scheme, or gear wheel is added and is designed to composite drill by improving drill bit structure design especially for PDC drill bit
First-class technological means makes PDC drill bit have excellent service performance.Structure optimization is carried out in conventional bit structure basis to set
Meter, can mention the service performance of drill bit, but can not fundamentally break through existing bit technique bottleneck, so how further to mention
The efficiency of breaking rock of high drill bit, the utility function for increasing drill bit become the critical issue of modern bit technique development.
Summary of the invention
The efficient rock-breaking described in background technology for realizing drill bit is solved in order to explore, rate of penetration is improved, shortens drilling well
In the period, the present invention provides the PDC drill bits that a kind of fluidic oscillation realizes rock fracture in dynamic indentation.Fluidic oscillation of the invention realizes impact cutting
When the PDC drill bit work of rock, drilling fluid enters fluidic oscillation from nipple and realizes inside the PDC drill bit of rock fracture in dynamic indentation, passes through
After fluidic oscillation pipe nipple, flowed out from bit port, when drilling fluid passes through fluidic oscillation pipe nipple, annular flow of the drilling fluid in design
Road circulation switches with direction, when drilling fluid completes a direction switching, will generate pressure oscillation, forms fluidic oscillation, utilize
The fluidic oscillation function that drilling fluid generates in handoff procedure accelerates drill bit broken rock.
The technical solution of the present invention is as follows: fluidic oscillation realizes the PDC drill bit of rock fracture in dynamic indentation mainly by nipple, positioning pin
Nail, fluidic oscillation pipe nipple, drill body, fluid inlet, annular channel, incident runner, right feedback runner, right flow manifold, a left side
Flow manifold, left feedback runner, fluidic oscillation chamber, fluid outlet composition；The shop bolt and fluidic oscillation pipe nipple is located at
In drill body, symmetrically arranged fluidic oscillation pipe nipple is positioned by shop bolt, then the jet stream after combination shakes
It swings pipe nipple and is installed to drill body, and make on the locating groove and drill body inner periphery on the circumference of fluidic oscillation pipe nipple front end
Boss cooperation, carries out fluidic oscillation pipe nipple circumferentially positioned, then axially position is carried out by installation nipple, when installing
After nipple, nipple and drill body are welded together, guarantee that nipple tightens together with drill body；Institute
The fluid inlet stated, incident runner, right feedback runner, right flow manifold, left shunt runner, left feedback runner, is penetrated annular channel
Stream oscillation chamber, fluid outlet are the flow passage structure design on fluidic oscillation pipe nipple, and right feedback runner and left feedback runner are in 180 °
Symmetrical, there are angle αs between right flow manifold and left shunt runner, and the value range of angle α is 30 °≤α≤60 °.
Above-mentioned technical proposal further include:
The fluid inlet and fluid outlet shape is circle, the axis and annular flow of fluid inlet and fluid outlet
The processing plane in road, incident runner, right feedback runner, right flow manifold, left shunt runner, left feedback runner, fluidic oscillation chamber
Vertically.
After the completion of the gap welding of the nipple and drill body link position, sanding and polishing is carried out to weld seam.
The fluidic oscillation chamber is circle, and tangent with right flow manifold and left shunt runner center line, guarantees fluid
Fluidic oscillation chamber can tangentially be entered.
The shop bolt quantity is 6, and 3 shop bolts of every side are located in a straight line.
Locating groove quantity on the single fluidic oscillation pipe nipple front end circumference is 2, drill body inner periphery
On boss quantity be 4.
The beneficial effects of the present invention are: (1) is original without changing using fluidic oscillation pipe nipple is added in drill body
The design of PDC drill bit structure, not only increases the functional diversity of green bit, will not process to drill bit and propose new want
It asks, has the possibility of industrialization production；(2) jet stream pipe nipple is arranged in drill bit internal, using drill body as jet stream pipe nipple
Installation shell, be effectively utilized the inner space of drill body；(3) increase fluidic oscillation pipe nipple structure, drill bit can be made certainly
Body has fluidic oscillation function, and drill bit is made to can produce pulse vibration in rock break-off process on the basis of realizing drill bit broken rock function
It swings, improves drill bit efficiency of breaking rock；(4) fluidic oscillation pipe nipple is directly anchored in drill body, in drill bit rock break-off process, jet stream
Oscillation pipe nipple, which does not generate, rotationally and axially to be moved, and influence of the new construction design to drill bit PDC tooth can be effectively reduced.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is exterior contour figure of the invention.
Fig. 3 is the bottom view of Fig. 1 of the present invention.
Fig. 4 is the Section A-A figure in Fig. 1 of the present invention.
Fig. 5 is the section B-B figure in Fig. 1 of the present invention.
Fig. 6 is the C-C sectional view in Fig. 1 of the present invention.
Fig. 7 is the D-D sectional view in Fig. 1 of the present invention.
Fig. 8 is the E-E sectional view in Fig. 1 of the present invention.
Fig. 9 is the F-F sectional view in Fig. 3 of the present invention.
Figure 10 is the structure chart of fluidic oscillation pipe nipple.
1. nipple in figure, 2. shop bolts, 3. fluidic oscillation pipe nipples, 4. drill bodies, 5. fluid inlets, 6. annulars
Runner, 7. incident runners, 8. right feedback runners, 9. right flow manifolds, 10. left shunt runners, 11. left feedback runners, 12. jet streams
Vibrate chamber, 13. fluid outlets.
Specific embodiment
Carry out detailed description of the present invention illustrative embodiments with reference to the drawings.It should be appreciated that shown in attached drawing and
The embodiment of description is only exemplary, it is intended that is illustrated the principle and spirit of the invention, and is not limited model of the invention
It encloses.
Those of ordinary skill in the art will understand that the embodiments described herein, which is to help reader, understands this hair
Bright principle, it should be understood that protection scope of the present invention is not limited to such specific embodiments and embodiments.This field
Those of ordinary skill disclosed the technical disclosures can make according to the present invention and various not depart from the other each of essence of the invention
The specific variations and combinations of kind, these variations and combinations are still within the scope of the present invention.
Referring to attached drawing 1, fluidic oscillation realizes the PDC drill bit of rock fracture in dynamic indentation mainly by nipple 1, shop bolt 2, jet stream
Vibrate pipe nipple 3, drill body 4, fluid inlet 5, annular channel 6, incident runner 7, right feedback runner 8, right flow manifold 9, a left side
Flow manifold 10, left feedback runner 11, fluidic oscillation chamber 12, fluid outlet 13 form；The shop bolt 2 and fluidic oscillation
Pipe nipple 3 is located in drill body 4, is positioned by shop bolt 2 to symmetrically arranged fluidic oscillation pipe nipple 3, then by group
Fluidic oscillation pipe nipple 3 after conjunction is installed to drill body 4, and makes the locating groove and brill on 3 front end circumference of fluidic oscillation pipe nipple
Head 4 inner periphery of ontology on boss cooperation, fluidic oscillation pipe nipple 3 is carried out it is circumferentially positioned, then by installation nipple 1 into
Row axially position welds together nipple 1 and drill body 4 after installing nipple 1, guarantees nipple 1
It tightens together with drill body 4；The fluid inlet 5, annular channel 6, incident runner 7, right feedback runner 8, right shunting
Runner 9, left shunt runner 10, left feedback runner 11, fluidic oscillation chamber 12, fluid outlet 13 are the stream on fluidic oscillation pipe nipple 3
The design of road structure, right feedback runner 8 is symmetrical in 180 ° with left feedback runner 11, right flow manifold 9 and left shunt runner 10
Between there are angle α, and the value range of angle α is 30 °≤α≤60 °.
The fluid inlet 5 and 13 shape of fluid outlet is circle, the axis of fluid inlet 5 and fluid outlet 13 with
Annular channel 6, incident runner 7, right feedback runner 8, right flow manifold 9, left shunt runner 10, left feedback runner 11, jet stream vibration
The processing plane for swinging chamber 12 is vertical.After drilling fluid is from nipple 1 into drill bit internal, enter incident runner from fluid inlet 5
7, fluidic oscillation chamber 12 is entered by right flow manifold 9 and left shunt runner 10, part drilling fluid is again from left 11 He of feedback runner
Right feedback runner 8 flows back into annular channel 6, and completion recycles in inner flow passage.The fluidic oscillation chamber 12 is circle, and
It is tangent with right flow manifold 9 and 10 center line of left shunt runner, guarantee that fluid can tangentially enter fluidic oscillation chamber 12.
After the completion of the gap welding of the nipple 1 and 4 link position of drill body, polishing throwing is carried out to weld seam
Light；2 quantity of shop bolt is 6, and 3 shop bolts of every side are located in a straight line；It is described single
Locating groove quantity on 3 front end circumference of fluidic oscillation pipe nipple is 2, and the boss quantity on 4 inner periphery of drill body is 4.
Claims (6)
1. the PDC drill bit of fluidic oscillation realization rock fracture in dynamic indentation, it is characterised in that: the fluidic oscillation realizes rock fracture in dynamic indentation
PDC drill bit is by nipple (1), shop bolt (2), fluidic oscillation pipe nipple (3), drill body (4), fluid inlet (5), annular
Runner (6), incident runner (7), right feedback runner (8), right flow manifold (9), left shunt runner (10), left feedback runner
(11), fluidic oscillation chamber (12), fluid outlet (13) composition；The shop bolt (2) and fluidic oscillation pipe nipple (3), which is located at, to be bored
In head ontology (4), symmetrically arranged fluidic oscillation pipe nipple (3) is positioned by shop bolt (2), it then will be after combination
Fluidic oscillation pipe nipple (3) is installed to drill body (4), and makes the locating groove and brill on the circumference of fluidic oscillation pipe nipple (3) front end
Boss cooperation on head ontology (4) inner periphery, it is circumferentially positioned to fluidic oscillation pipe nipple (3) progress, then connect by installing screw thread
Head (1) carries out axially position and welds together nipple (1) and drill body (4) after installing nipple (1),
Guarantee that nipple (1) tightens together with drill body (4)；The fluid inlet (5), annular channel (6), incident runner
(7), right feedback runner (8), right flow manifold (9), left shunt runner (10), left feedback runner (11), fluidic oscillation chamber (12),
Fluid outlet (13) is the flow passage structure design on fluidic oscillation pipe nipple (3), and right feedback runner (8) is in left feedback runner (11)
180 ° symmetrical, and there are angle αs between right flow manifold (9) and left shunt runner (10), and the value range of angle α is
30°≤α≤60°。
2. the PDC drill bit that fluidic oscillation according to claim 1 realizes rock fracture in dynamic indentation, it is characterised in that: the fluid
Entrance (5) and fluid outlet (13) shape are circle, the axis and annular channel of fluid inlet (5) and fluid outlet (13)
(6), incident runner (7), right feedback runner (8), right flow manifold (9), left shunt runner (10), left feedback runner (11), penetrate
The processing plane of stream oscillation chamber (12) is vertical.
3. the PDC drill bit that fluidic oscillation according to claim 1 realizes rock fracture in dynamic indentation, it is characterised in that: the screw thread
After the completion of the welding of the gap of connector (1) and drill body (4) link position, sanding and polishing is carried out to weld seam.
4. the PDC drill bit that fluidic oscillation according to claim 1 realizes rock fracture in dynamic indentation, it is characterised in that: the jet stream
Vibrating chamber (12) is circle, and tangent with right flow manifold (9) and left shunt runner (10) center line, guarantees that fluid can be tangential
Into fluidic oscillation chamber (12).
5. the PDC drill bit that fluidic oscillation according to claim 1 realizes rock fracture in dynamic indentation, it is characterised in that: the positioning
Pin (2) quantity is 6, and 3 shop bolts of every side are located in a straight line.
6. the PDC drill bit that fluidic oscillation according to claim 1 realizes rock fracture in dynamic indentation, it is characterised in that: described is single
Fluidic oscillation pipe nipple (3) front end circumference on locating groove quantity be 2, the boss quantity on drill body (4) inner periphery
It is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910329215.0A CN110005342A (en) | 2019-04-23 | 2019-04-23 | The PDC drill bit of fluidic oscillation realization rock fracture in dynamic indentation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910329215.0A CN110005342A (en) | 2019-04-23 | 2019-04-23 | The PDC drill bit of fluidic oscillation realization rock fracture in dynamic indentation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110005342A true CN110005342A (en) | 2019-07-12 |
Family
ID=67173735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910329215.0A Pending CN110005342A (en) | 2019-04-23 | 2019-04-23 | The PDC drill bit of fluidic oscillation realization rock fracture in dynamic indentation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110005342A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617012A (en) * | 2019-10-21 | 2019-12-27 | 沧州格锐特钻头有限公司 | PDC drill bit with rotary oscillation impact function |
| CN111101868A (en) * | 2019-11-14 | 2020-05-05 | 中国石油大学(北京) | Jet flow PDC drill bit |
| CN113863861A (en) * | 2021-10-22 | 2021-12-31 | 中南大学 | Single feedback channel vortex cavity type pressure pulse generating device |
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| CN208473711U (en) * | 2018-06-29 | 2019-02-05 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | A kind of vortex pulse shock drill bit |
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| US20150114716A1 (en) * | 2013-10-31 | 2015-04-30 | Smith International, Inc. | Vibration tool |
| CN106368609A (en) * | 2016-11-09 | 2017-02-01 | 西南石油大学 | Jet flow oscillating tool |
| CN106481273A (en) * | 2016-11-09 | 2017-03-08 | 西南石油大学 | Fluidic oscillation realizes the drilling tool of axial impact |
| CN206668157U (en) * | 2017-03-25 | 2017-11-24 | 四机赛瓦石油钻采设备有限公司 | A kind of auto-excitation type hydroscillator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617012A (en) * | 2019-10-21 | 2019-12-27 | 沧州格锐特钻头有限公司 | PDC drill bit with rotary oscillation impact function |
| CN111101868A (en) * | 2019-11-14 | 2020-05-05 | 中国石油大学(北京) | Jet flow PDC drill bit |
| CN111101868B (en) * | 2019-11-14 | 2021-04-06 | 中国石油大学(北京) | Jet flow PDC drill bit |
| CN113863861A (en) * | 2021-10-22 | 2021-12-31 | 中南大学 | Single feedback channel vortex cavity type pressure pulse generating device |
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Application publication date: 20190712 |