CN104563891A - Flexible self-shock-absorption drill bit - Google Patents
Flexible self-shock-absorption drill bit Download PDFInfo
- Publication number
- CN104563891A CN104563891A CN201510033321.6A CN201510033321A CN104563891A CN 104563891 A CN104563891 A CN 104563891A CN 201510033321 A CN201510033321 A CN 201510033321A CN 104563891 A CN104563891 A CN 104563891A
- Authority
- CN
- China
- Prior art keywords
- drill bit
- piston
- drill
- link
- connecting end
- 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.)
- Granted
Links
- 238000010521 absorption reaction Methods 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 230000003116 impacting effect Effects 0.000 claims description 23
- 238000013016 damping Methods 0.000 claims description 9
- 230000037361 pathway Effects 0.000 claims description 9
- 239000000956 alloy Substances 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 2
- 238000005553 drilling Methods 0.000 abstract description 25
- 239000012530 fluid Substances 0.000 abstract description 14
- 239000007788 liquid Substances 0.000 abstract description 4
- 230000035939 shock Effects 0.000 abstract description 4
- 230000035515 penetration Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000036346 tooth eruption Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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 OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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 OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention belongs to the field of drilling devices, in particular to a flexible self-shock-absorption drill bit which comprises a drill bit body. The drill bit body comprises a drill bit end and a connecting end, wherein the drill bit end is provided with a drill bit nozzle, the connecting end is connected with a piston, and the connecting end surface of the piston and the connecting end is provided with a convex edge. A torque transmission body is installed outside the connecting end in a sleeved mode and located between the convex edge of the piston and the drill bit end. The inner side surface of the torque transmission body and the outer side surface of the connecting end of the drill bit body are provided with anti-rotating surfaces correspond to each other. The torque transmission body is connected with a connector main body which is located on the periphery of the piston. A cavity is formed between the connector main body and the piston and is a hydraulic bin. Compensating openings are distributed in the piston correspond to the hydraulic bin. The inner side of the lower portion of the piston is provided with a variable diameter nozzle. By the utilization of water attack energy of the drilling fluid and the incompressibility of mud, the rigid impact of a drill rod on the PDC drill bit is converted into the high-frequency flexible impact of liquid so that the impact and shock of the drill rod can be absorbed to the largest extent, the rate of penetration is improved and the service life of the PDC drill bit is prolonged.
Description
Technical field
The present invention relates to a kind of flexible from damping drill bit, belong to drilling rig field.
Background technology
PDC drill bit has higher rate of penetration and longer application life, become the oil bit that onsite application is maximum, PDC drill bit formation condition is very responsive, relatively be applicable to creeping into soft in hard homogeneous formation, collapse tooth when PDC drill bit cutting teeth when hard formation or special formation (as in conglomerate) creep into easily is subject to larger shock loading and loses cutting power.Because downhole condition is complicated, the working condition very severe that particularly drill string bears in the operation of high angle hole, horizontal well and slim-hole, the longitudinal direction vibrations being bound to produce vibrations, particularly drill string very easily cause PDC drill bit to collapse tooth and then cause the initial failure of drill bit, add drilling cost.Now commercially also have damper or the hydraulic thruster of similar functions, also achieve good effect, but the general more complicated of their structures, size is larger, manufacturing cost is high and affect the combination of top drilling tool.
Summary of the invention
The technical problem to be solved in the present invention is: provide that a kind of structure is simple, low cost of manufacture, to increase the service life, can solve drill bit bouncing of drilling tool phenomenon, improve the flexibility of damping effect from damping drill bit.
Flexibility of the present invention is from damping drill bit, comprise drill body, drill body comprises drill bit and link, drill bit arranges bit nozzle, drill body link is connected with piston, the connecting end surface place of piston and link arranges convex edge, drill body link outside suit torsion transfer body, torsion transfer body is between piston convex edge and drill body drill bit, torsion transfer body medial surface is set to corresponding anti-rotation face with drill body link lateral surface, torsion transfer body is connected with adapter body, adapter body is positioned at piston outer periphery, and have cavity between adapter body and piston, this cavity is hydraulic pressure storehouse, corresponding hydraulic pressure storehouse is distributed with compensating port at upper piston area, reducing nozzle is had inside piston lower portion, the top of adapter body is feed pathway.
Cleaner for high-pressure drilling fluid by feed pathway to dirty, high speed drilling fluid produces pressure drop when flowing through the reducing nozzle in piston, instantaneous pressure drop make drilling fluid in piston in produce water attack, powerful water attack energy promotes drill body and piston entirety moves downward, while moving downward, part drilling fluid fills hydraulic pressure storehouse by compensating port, the vibrations of drill string and pressure make torsion transfer body and adapter body move downward, while free gap is reduced, compensating port is closed, compensating port closes the space that rear hydraulic pressure storehouse forms a metal sealing, due to the Incoercibility of drilling fluid, the softer pressure making the pressure of drill string and vibrations be converted into liquid acts on drill bit, in hydraulic pressure storehouse drilling fluid reduce after in piston with the water attack energy in link under promote piston, fill at any time when moving up and down, the drill bit of such invention has just become the combination of a drill bit and pulse drilling tool and hydraulic thruster, and cost is low, structure is simply relatively applicable to producing in enormous quantities.Positioning action can be played in the convex edge of piston.
Described piston with between link, torsion transfer body is threaded with being between adapter body, internal piston comprises the cylindrical cavity on top and the conical cavity of bottom, it is reducing nozzle bottom cylindrical cavity, the first impacting house is formed between cylindrical cavity and reducing nozzle, conical cavity is the second impacting house, link inner chamber is set to conical cavity, conical cavity in link is the 3rd impacting house, is all that the diameter on top is less than lower diameter in the second impacting house and the 3rd impacting house.Be threaded convenient realization and installation.
Described feed pathway top is carbide alloy water inlet, and the material on reducing nozzle top is carbide alloy.Improve abrasion resistance, increase the service life.
Anti-rotation face can be set to shape or hexagon shape from all directions, easily makes, and is convenient to location, and effectively prevents mutual rotation.
The invention has the beneficial effects as follows:
Utilize the water attack energy of drilling fluid and the Incoercibility of mud that the rigid shock of drilling rod to PDC drill bit is converted to the high frequency soft impulse of liquid, absorb the impact endurance test shock of drilling rod greatly, avoid collapsing tooth phenomenon and creeping into " bouncing of drilling tool " phenomenon of special formation (as conglomerate) of PDC drill bit, improve the application life of rate of penetration and PDC drill bit, the drilling assembly that structure of the present invention is simple, low cost of manufacture, length are similar with conventional PDC drill bit size, do not affect drill bit top completely, can be used for alternative existing damper and hydraulic thruster.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of the connection of drill body and piston in Fig. 1.
Fig. 3 is the cross section structure schematic diagram of A-A in Fig. 1.
Fig. 4 is the cross section structure schematic diagram of B-B in Fig. 1.
In figure: 1, carbide alloy water inlet 2, adapter body 3, compensating port 4, hydraulic pressure storehouse 5, piston 6, carboloy nozzle 7, reducing nozzle 8, torsion transfer body 9, link 10, drill bit 11, bit nozzle 12, free gap 13, the 3rd impacting house 14, second impacting house 15, first impacting house 16, feed pathway 17, convex edge 18, anti-rotation face.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described further:
As shown in Figure 1 to 4, flexibility of the present invention is from damping drill bit, comprise drill body, drill body comprises drill bit 10 and link 9, drill bit 10 is arranged bit nozzle 11, drill body link 9 is connected with piston 5, piston 5 arranges convex edge 17 with the connecting end surface place of link 9, drill body link 9 outside suit torsion transfer body 8, torsion transfer body 8 is between piston convex edge 17 and drill body drill bit 10, torsion transfer body 8 medial surface is set to corresponding anti-rotation face 18 with drill body link 9 lateral surface, torsion transfer body 8 is connected with adapter body 2, adapter body 2 is positioned at piston 5 periphery, and have cavity between adapter body 2 and piston 5, this cavity is hydraulic pressure storehouse 4, corresponding hydraulic pressure storehouse 4 is furnished with compensating port 3 in piston 5 upper part, piston 5 lower inside has reducing nozzle 7, the top of adapter body 2 is feed pathway 16.Be between piston 5 with link 9, between torsion transfer body 8 with adapter body 2 and be threaded, piston 5 inside comprises the cylindrical cavity on top and the conical cavity of bottom, it is reducing nozzle 7 bottom cylindrical cavity, the first impacting house 15 is formed between cylindrical cavity and reducing nozzle, conical cavity is the second impacting house 14, link 9 inner chamber is set to conical cavity, conical cavity in link 9 is be all that the diameter on top is less than lower diameter in the 3rd impacting house 13, second impacting house 14 and the 3rd impacting house 13.Anti-rotation face 18 is set to shape from all directions.Feed pathway 16 top is carbide alloy water inlet 1, and reducing nozzle 7 top is carboloy nozzle 6.
Cleaner for high-pressure drilling fluid passes through feed pathway 16 to dirty, high speed drilling fluid produces pressure drop when flowing through the reducing nozzle 7 in the first impacting house 15, instantaneous pressure drop makes drilling fluid produce water attack in the first impacting house 15, in like manner also in the second impacting house 14 and the 3rd impacting house 13, produce water attack, powerful water attack energy promotes drill body and piston 5 entirety moves downward, while moving downward, part drilling fluid fills hydraulic pressure storehouse 4 by compensating port 3, the vibrations of drill string and pressure make torsion transfer body 8 and adapter body 2 move downward, free gap 12 is reduced, compensating port 3 is closed simultaneously, compensating port 3 closes the space that rear hydraulic pressure storehouse 4 forms a metal sealing, due to the Incoercibility of drilling fluid, the softer pressure making the pressure of drill string and vibrations be converted into liquid acts on drill bit, in hydraulic pressure storehouse 4, drilling fluid promotes to fill at any time when piston 5 moves up and down after reducing under the water attack energy of three impacting houses, the drill bit of such invention has just become the combination of a drill bit and pulse drilling tool and hydraulic thruster, and cost is low, structure is simply relatively applicable to producing in enormous quantities.
Claims (3)
1. a flexibility is from damping drill bit, comprise drill body, drill body comprises drill bit (10) and link (9), drill bit (10) is arranged bit nozzle (11), it is characterized in that: drill body link (9) is connected with piston (5), piston (5) arranges convex edge (17) with the connecting end surface place of link (9), drill body link (9) outside suit torsion transfer body (8), torsion transfer body (8) is positioned between piston convex edge (17) and drill body drill bit (10), torsion transfer body (8) medial surface and drill body link (9) lateral surface are set to corresponding anti-rotation face (18), torsion transfer body (8) is connected with adapter body (2), adapter body (2) is positioned at piston (5) periphery, and have cavity between adapter body (2) and piston (5), this cavity is hydraulic pressure storehouse (4), corresponding hydraulic pressure storehouse (4) is furnished with compensating port (3) in piston (5) upper part, piston (5) lower inside has reducing nozzle (7), the top of adapter body (2) is feed pathway (16).
2. flexibility according to claim 1 is from damping drill bit, it is characterized in that: between piston (5) and link (9), be between torsion transfer body (8) with adapter body (2) and be threaded, piston (5) inside comprises the cylindrical cavity on top and the conical cavity of bottom, it is reducing nozzle (7) bottom cylindrical cavity, the first impacting house (15) is formed between cylindrical cavity and reducing nozzle (7), conical cavity is the second impacting house (14), link (9) inner chamber is set to conical cavity, conical cavity in link (9) is the 3rd impacting house (13), all that the diameter on top is less than lower diameter in second impacting house (14) and the 3rd impacting house (13).
3. flexibility according to claim 1 and 2 is from damping drill bit, it is characterized in that: feed pathway (16) top is carbide alloy water inlet (1), and the material on reducing nozzle (7) top is carbide alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510033321.6A CN104563891B (en) | 2015-01-23 | 2015-01-23 | Flexible from damping drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510033321.6A CN104563891B (en) | 2015-01-23 | 2015-01-23 | Flexible from damping drill bit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104563891A true CN104563891A (en) | 2015-04-29 |
| CN104563891B CN104563891B (en) | 2016-08-24 |
Family
ID=53080878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510033321.6A Active CN104563891B (en) | 2015-01-23 | 2015-01-23 | Flexible from damping drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104563891B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654195A (en) * | 2017-11-13 | 2018-02-02 | 中国石油大学(华东) | Composite impact rolls self-adjustable PDC drill bit |
| CN116696241A (en) * | 2023-07-31 | 2023-09-05 | 陕西星通石油工程技术有限公司 | On-line monitoring PDC drill bit |
-
2015
- 2015-01-23 CN CN201510033321.6A patent/CN104563891B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654195A (en) * | 2017-11-13 | 2018-02-02 | 中国石油大学(华东) | Composite impact rolls self-adjustable PDC drill bit |
| CN107654195B (en) * | 2017-11-13 | 2024-01-30 | 中国石油大学(华东) | Composite impact rolling self-adjusting PDC drill bit |
| CN116696241A (en) * | 2023-07-31 | 2023-09-05 | 陕西星通石油工程技术有限公司 | On-line monitoring PDC drill bit |
| CN116696241B (en) * | 2023-07-31 | 2023-10-13 | 陕西星通石油工程技术有限公司 | On-line monitoring PDC drill bit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104563891B (en) | 2016-08-24 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Flexible self damping drill bit Granted publication date: 20160824 Pledgee: Zibo Zichuan District sub branch of China Post Savings Bank Co.,Ltd. Pledgor: SHANDONG GUOYUE DIAMOND PRODUCTS CO.,LTD. Registration number: Y2024980003892 |