CN104329028B - Split type interior injection reacting cycle rotary percussion drill bit - Google Patents
Split type interior injection reacting cycle rotary percussion drill bit Download PDFInfo
- Publication number
- CN104329028B CN104329028B CN201410646547.9A CN201410646547A CN104329028B CN 104329028 B CN104329028 B CN 104329028B CN 201410646547 A CN201410646547 A CN 201410646547A CN 104329028 B CN104329028 B CN 104329028B
- Authority
- CN
- China
- Prior art keywords
- drill bit
- lower contact
- bit body
- anvil block
- reverse circulation
- 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.)
- Expired - Fee Related
Links
- 238000002347 injection Methods 0.000 title claims abstract description 19
- 239000007924 injection Substances 0.000 title claims abstract description 19
- 238000009527 percussion Methods 0.000 title claims abstract description 7
- 238000001125 extrusion Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 210000000515 tooth Anatomy 0.000 claims description 45
- 238000005553 drilling Methods 0.000 abstract description 14
- 239000011435 rock Substances 0.000 abstract description 8
- 241001074085 Scophthalmus aquosus Species 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 239000002893 slag Substances 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/16—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using gaseous fluids
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 discloses a kind of split type interior injection reacting cycle rotary percussion drill bit, it is made up of reverse circulation drill bit body, lower contact, anvil block, non-return valve, retracting spring, back-moving spring, non-return valve O RunddichtringO, lower contact O RunddichtringO, drill bit uses split-type structural, anvil block lower end assembling toothed central authorities plug, reverse circulation drill bit body is replaced by extrusion sealing drill bit.Drill bit uses split-type structural, rational in infrastructure, compact, be conveniently replaceable, easy to process, low cost；Multiple drilling process is switched fast: increases toothed central authorities plug, can realize direct circulation and creep into；Change bit body, compacted creeping into can be realized；Interior injection runner, on the one hand can effectively cool down bit teeth, on the other hand can form good reacting cycle flow field, enhances the ability of absorption disintegrating slag；Bore tooth to be embedded on different circumference, and the brill tooth interlaced arrangement on different circumference, this makes bit body fractured rock efficiency improve, also reduces the abrasion boring tooth；Double direction impulse can be realized, conveniently carry brill.
Description
Technical field
The present invention relates to a kind of split type interior injection reacting cycle rotary percussion drill bit.
Background technology
Oil is faced with the scarcity of resource, so that exploring, sampling, exploiting requirement and improve constantly, existing reverse circulation impactor drill bit many employings monolithic construction, drilling process is single, need bad ground to change different a whole set of impactors, drilling efficiency is low, easy collapse hole, burying, owing to distribution duct is unreasonable, brill is laughed somebody to scorn but weak effect, causing Air Reverse Circulation flow field slag absorbing weak effect, drill bit monolithic construction processing technology is complicated, cost is high, and impact penetration rate is not good enough.
Summary of the invention
The invention aims to solve the problem that above-mentioned existing reverse circulation impactor drill bit exists, and a kind of split type interior injection reacting cycle rotary percussion drill bit is provided.Drill bit of the present invention uses split-type structural, can be switched fast by multiple drilling process, detritus efficiency height, drill bit good cooling results, pass on Gong rational in infrastructure, be easy to dismounting, raising drilling efficiency and chip removal ability, solve bit freezing, bit bouncing and burying problem.
The present invention is made up of reverse circulation drill bit body, lower contact, anvil block, non-return valve, retracting spring, back-moving spring, non-return valve O RunddichtringO, lower contact O RunddichtringO, drill bit uses split-type structural, anvil block lower end assembling toothed central authorities plug, reverse circulation drill bit body is replaced by extrusion sealing drill bit.In reverse circulation drill bit body upper surface is evenly equipped with six air slots and 45 °, injection runner is through, in reverse circulation drill bit body, portion is provided with the screwed hole being connected with anvil block, escape is had bottom screwed hole, in 45 °, injection runner is inlaid with six heel teeths on reverse circulation drill bit body end face, on the basis of the circumference at six heel teeth places, uniform on the circumference of 3/4 it is inlaid with three outer distributed tooths, uniform on the circumference of 1/2 is inlaid with three interior distributed tooths, uniform on the circumference of 1/4 be inlaid with three internal tooths；Internal tooth is cone tooth, and heel teeth, outer distributed tooth and interior distributed tooth are Cylinder Gear, and the adjacent teeth on different circumference becomes staggered；Lower contact front end is provided with seven o-ring grooves, lower contact inside middle is provided with eight semicircle gas distribution channels, the first spline being connected with anvil block it is provided with inside lower contact upper end, the number of teeth of the first spline is eight, lower contact upper end cylindrical is provided with the first screw thread being connected with impactor, and anvil block lower end is provided with the second screw thread being connected with reverse circulation drill bit body, and anvil center passage lower end is provided with the 3rd screw thread, anvil block upper end is provided with the second spline being connected with lower contact, and the number of teeth of the second spline is eight.Non-return valve is positioned at the cavity that reverse circulation drill bit body is formed with lower contact, and non-return valve is provided with the inclined-plane coordinated with lower contact, and inclined-plane is machined with O RunddichtringO groove.
Specific works mode of the present invention:
During reverse circulation drilling, the space that pressure-air is connected with anvil block spline by lower contact, enters drill bit internal, backs down non-return valve, pressure-air enters reverse circulation drill bit body by the air slot of bit body, cooling heel teeth, air injection runner in 45 ° enters anvil center duct subsequently, forms reacting cycle flow field, due to Involving velocity, hole bed rock debris can be sucked the central duct of anvil block, enter impactor central duct, be finally discharged to earth's surface.Meanwhile, lower contact can be passed back to torque with the spline of anvil block, forms efficient rotary-percussive drilling.When air compressor machine stops, non-return valve is resetted by back-moving spring, makes the inclined-plane of non-return valve fit tightly with lower contact step, can prevent rock debris from entering impactor.When carrying brill, retracting spring can make anvil block reset together with reverse circulation drill bit body, it is ensured that impactor piston effectively impacts, and to realize reverse impact, prevents burying.
When direct circulation is crept into, installing toothed central authorities plug in anvil block lower end, now pressure-air is entered reverse circulation drill bit body central duct by interior injection runner, the space between drilling tool and boring be discharged to earth's surface, it is achieved direct circulation is crept into.
Compacted when creeping into, change extrusion sealing drill bit body, pressure-air flows to identical with reverse circulation drilling, but does not discharge rock debris, it is achieved compacted creep into.
Beneficial effects of the present invention:
1, drill bit uses split-type structural, rational in infrastructure, compact, be conveniently replaceable, easy to process, low cost.
2, multiple drilling process is switched fast: increases toothed central authorities plug, can realize direct circulation and creep into；Change bit body, compacted creeping into can be realized.
3, interior injection runner, on the one hand can effectively cool down bit teeth, on the other hand can form good reacting cycle flow field, enhances the ability of absorption disintegrating slag.
4, bore tooth to be embedded on different circumference, and the brill tooth interlaced arrangement on different circumference, this makes bit body fractured rock efficiency improve, also reduces the abrasion boring tooth.
5, double direction impulse can be realized, conveniently carry brill.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic of the present invention.
Fig. 2 is the reverse circulation drill bit body cross-sectional schematic of the present invention.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is the lower contact cross-sectional schematic of the present invention.
Fig. 5 is the left view of Fig. 4.
Fig. 6 is the sectional view of Fig. 4.
Fig. 7 is the anvil block schematic perspective view of the present invention.
Fig. 8 is the non-return valve structural representation of the present invention.
Fig. 9 is direct circulation of the present invention operating diagram when creeping into.
Figure 10 is that the present invention is compacted operating diagram when creeping into.
Detailed description of the invention
Refer to shown in Fig. 1 to Fig. 8, the present embodiment is made up of reverse circulation drill bit body I, lower contact II, anvil block III, non-return valve IV, retracting spring V, back-moving spring VI, non-return valve O RunddichtringO VII, lower contact O RunddichtringO VIII, drill bit uses split-type structural, anvil block III lower end assembling toothed central authorities plug Ⅸ, reverse circulation drill bit body I is replaced by extrusion sealing drill bit Ⅹ.Reverse circulation drill bit body I upper surface be evenly equipped with six air slots 1 with 45 ° in injection runner 2 through, the screwed hole 3 being connected with anvil block III it is provided with inside reverse circulation drill bit body I, escape 4 is had bottom screwed hole 3, in 45 °, injection runner 2 is inlaid with six heel teeths 5 on reverse circulation drill bit body I end face, on the basis of the circumference at six heel teeth 5 places, uniform on the circumference of 3/4 it is inlaid with three outer distributed tooths 6, uniform on the circumference of 1/2 it is inlaid with three interior distributed tooths 7, uniform on the circumference of 1/4 is inlaid with three internal tooths 8；Internal tooth 8 is cone tooth, and heel teeth 5, outer distributed tooth 6 and interior distributed tooth 7 are Cylinder Gear, and the adjacent teeth on different circumference becomes staggered；Lower contact II front end is provided with seven o-ring grooves 21, lower contact II inside middle is provided with eight semicircle gas distribution channels 22, the first spline 23 being connected with anvil block III it is provided with inside lower contact II upper end, the number of teeth of the first spline 23 is eight, lower contact II upper end cylindrical is provided with the first screw thread 24 being connected with impactor, anvil block III lower end is provided with the second screw thread 31 being connected with reverse circulation drill bit body I, anvil block III central passage lower end is provided with the 3rd screw thread 32, anvil block III upper end is provided with the second spline 33 being connected with lower contact II, and the number of teeth of the second spline 33 is eight.Non-return valve IV is positioned at the cavity that reverse circulation drill bit body I and lower contact II is formed, and non-return valve IV is provided with the inclined-plane 41 coordinated with lower contact II, and inclined-plane 41 is machined with O RunddichtringO groove 42.
Specific works mode of the present invention is as shown in Fig. 1, Fig. 9 and Figure 10:
During reverse circulation drilling, as it is shown in figure 1, the space that pressure-air is connected with anvil block III spline by lower contact II, enter drill bit internal, backing down non-return valve IV, pressure-air enters reverse circulation drill bit body I by the air slot 1 of bit body I, cools down heel teeth 5, air injection runner 2 in 45 ° enters anvil block III central duct subsequently, form reacting cycle flow field, due to Involving velocity, hole bed rock debris can be sucked the central duct of anvil block III, enter impactor central duct, be finally discharged to earth's surface.Meanwhile, the spline of lower contact II and anvil block III can be passed back to torque, forms efficient rotary-percussive drilling.When air compressor machine stops, non-return valve IV is resetted by back-moving spring VI, makes the inclined-plane 42 of non-return valve IV fit tightly with lower contact II step, can prevent rock debris from entering impactor.When carrying brill, retracting spring V can make anvil block III reset together with reverse circulation drill bit body I, it is ensured that impactor piston effectively impacts, and to realize reverse impact, prevents burying.
When direct circulation is crept into, as it is shown in figure 9, install toothed central authorities plug Ⅸ in anvil block III lower end, now pressure-air is entered reverse circulation drill bit body I central duct by interior injection runner 2, the space between drilling tool and boring be discharged to earth's surface, it is achieved direct circulation is crept into.
Compacted when creeping into, as shown in Figure 10, change extrusion sealing drill bit body Ⅹ, pressure-air flows to identical with reverse circulation drilling, but does not discharge rock debris, it is achieved compacted creep into.
Claims (2)
- null1. a split type interior injection reacting cycle rotary percussion drill bit，It is characterized in that: be by reverse circulation drill bit body (I)、Lower contact (II)、Anvil block (III)、Non-return valve (IV)、Retracting spring (V)、Back-moving spring (VI)、Non-return valve O RunddichtringO (VII)、Lower contact O RunddichtringO (VIII) forms，Drill bit uses split-type structural，Anvil block (III) lower end assembling toothed central authorities plug (Ⅸ)，Reverse circulation drill bit body (I) upper surface be evenly equipped with six air slots (1) with 45 ° in injection runner (2) through，Reverse circulation drill bit body (I) is internal is provided with the screwed hole (3) being connected with anvil block (III)，Escape (4) is arranged at screwed hole (3) bottom，In 45 °, injection runner (2) is inlaid with six heel teeths (5) on reverse circulation drill bit body (I) end face，On the basis of the circumference at six heel teeth (5) places，Uniform on the circumference of 3/4 it is inlaid with three outer distributed tooths (6)，Uniform on the circumference of 1/2 it is inlaid with three interior distributed tooths (7)，Uniform on the circumference of 1/4 it is inlaid with three internal tooths (8)；Internal tooth (8) is cone tooth, and heel teeth (5), outer distributed tooth (6) and interior distributed tooth (7) are Cylinder Gear, and the adjacent teeth on different circumference becomes staggered；Lower contact (II) front end is provided with seven o-ring grooves (21), lower contact (II) inside middle is provided with eight semicircle gas distribution channels (22), the first spline (23) being connected with anvil block (III) it is provided with inside lower contact (II) upper end, the number of teeth of the first spline (23) is eight, lower contact (II) upper end cylindrical is provided with the first screw thread (24) being connected with impactor, anvil block (III) lower end is provided with the second screw thread (31) being connected with reverse circulation drill bit body (I), anvil block (III) central passage lower end is provided with the 3rd screw thread (32), anvil block (III) upper end is provided with the second spline (33) being connected with lower contact (II), the number of teeth of the second spline (33) is eight；Non-return valve (IV) is positioned at the cavity that reverse circulation drill bit body (I) is formed with lower contact (II), and non-return valve (IV) is provided with the inclined-plane (41) coordinated with lower contact (II), inclined-plane (41) are machined with O RunddichtringO groove (42).
- The split type interior injection reacting cycle rotary percussion drill bit of one the most according to claim 1, it is characterised in that: described reverse circulation drill bit body (I) is replaced by extrusion sealing drill bit (Ⅹ).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410646547.9A CN104329028B (en) | 2014-11-16 | 2014-11-16 | Split type interior injection reacting cycle rotary percussion drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410646547.9A CN104329028B (en) | 2014-11-16 | 2014-11-16 | Split type interior injection reacting cycle rotary percussion drill bit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104329028A CN104329028A (en) | 2015-02-04 |
| CN104329028B true CN104329028B (en) | 2016-08-24 |
Family
ID=52403823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410646547.9A Expired - Fee Related CN104329028B (en) | 2014-11-16 | 2014-11-16 | Split type interior injection reacting cycle rotary percussion drill bit |
Country Status (1)
| Country | Link |
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| CN (1) | CN104329028B (en) |
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| CN104832095B (en) * | 2015-03-17 | 2017-03-01 | 吉林大学 | Single sliding block formula block-resistant type reverse circulation drill bit |
| CN104863497B (en) * | 2015-04-20 | 2018-01-30 | 中国地质大学（武汉） | A kind of drill bit spiral percussion mechanism |
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| CN106194038B (en) * | 2016-09-26 | 2018-10-12 | 安徽理工大学 | A kind of reinforcement tool of rotary bit |
| CN108505933A (en) * | 2018-06-01 | 2018-09-07 | 长江大学 | A kind of reacting cycle Pneumatic immpacting down-hole hammer |
| CN109611030B (en) * | 2018-11-28 | 2019-11-29 | 中国石油大学(北京) | Chip space type variable flow jet flow drill |
| CN109854180A (en) * | 2019-04-23 | 2019-06-07 | 吉林大学 | A kind of high frequency rotating vibrating type detritus drilling tool drill bit |
| CN115059462B (en) * | 2020-04-10 | 2023-02-14 | 中国地质科学院探矿工艺研究所 | Technological method of air reverse circulation continuous sampling drilling system |
| CN112392405B (en) * | 2020-12-28 | 2022-06-21 | 西南石油大学 | Special drill bit of reverse circulation well drilling |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2187675Y (en) * | 1993-12-23 | 1995-01-18 | 河北省地质矿产局第二地质大队 | Hydraulic impact well bottom two-direction circulation core-taking drill |
| CN1651711A (en) * | 2005-03-11 | 2005-08-10 | 吉林大学 | Bottom hole hammer reverse circulation follow pipe drill |
| CN201292793Y (en) * | 2008-11-07 | 2009-08-19 | 长沙黑金刚实业有限公司 | Reverse circulation impactor |
| CN201367854Y (en) * | 2009-02-24 | 2009-12-23 | 长沙黑金刚实业有限公司 | Reverse-circulation impact drill bit |
| CN103556948A (en) * | 2013-11-12 | 2014-02-05 | 吉林大学 | Churn compaction drill bit |
| CN204238857U (en) * | 2014-11-16 | 2015-04-01 | 吉林大学 | Split type interior injection reacting cycle rotary percussion drill bit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IES20050495A2 (en) * | 2005-07-20 | 2006-11-01 | Minroc Techn Promotions Ltd | A drill bit assembly for fluid-operated percussion drill tools |
-
2014
- 2014-11-16 CN CN201410646547.9A patent/CN104329028B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2187675Y (en) * | 1993-12-23 | 1995-01-18 | 河北省地质矿产局第二地质大队 | Hydraulic impact well bottom two-direction circulation core-taking drill |
| CN1651711A (en) * | 2005-03-11 | 2005-08-10 | 吉林大学 | Bottom hole hammer reverse circulation follow pipe drill |
| CN201292793Y (en) * | 2008-11-07 | 2009-08-19 | 长沙黑金刚实业有限公司 | Reverse circulation impactor |
| CN201367854Y (en) * | 2009-02-24 | 2009-12-23 | 长沙黑金刚实业有限公司 | Reverse-circulation impact drill bit |
| CN103556948A (en) * | 2013-11-12 | 2014-02-05 | 吉林大学 | Churn compaction drill bit |
| CN204238857U (en) * | 2014-11-16 | 2015-04-01 | 吉林大学 | Split type interior injection reacting cycle rotary percussion drill bit |
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| Publication number | Publication date |
|---|---|
| CN104329028A (en) | 2015-02-04 |
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