CN105804658A - Impact breaking type PDC bit - Google Patents
Impact breaking type PDC bit Download PDFInfo
- Publication number
- CN105804658A CN105804658A CN201610268964.3A CN201610268964A CN105804658A CN 105804658 A CN105804658 A CN 105804658A CN 201610268964 A CN201610268964 A CN 201610268964A CN 105804658 A CN105804658 A CN 105804658A
- Authority
- CN
- China
- Prior art keywords
- impact
- bit
- hammer
- core
- rock
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000002131 composite material Substances 0.000 claims description 24
- 238000007789 sealing Methods 0.000 claims description 7
- 239000011435 rock Substances 0.000 abstract description 43
- 238000005553 drilling Methods 0.000 abstract description 13
- 238000010008 shearing Methods 0.000 abstract description 3
- 239000003208 petroleum Substances 0.000 abstract 1
- 230000035515 penetration Effects 0.000 description 7
- 239000012530 fluid Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000003116 impacting effect Effects 0.000 description 2
- 238000009527 percussion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 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
- E21B10/36—Percussion drill bits
- E21B10/38—Percussion drill bits characterised by conduits or nozzles for drilling 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 particularly relates to an impact breaking type PDC bit mainly applied to the field of petroleum drilling. The impact breaking type PDC bit comprises a connector body and a bit body connected with the connector body. A through water-passing cavity is formed in the connector body and the bit body, an upper impact cavity, an impact hammer, an impact cushion block and a rock core breaking hammer which are connected with one another are arranged in the water-passing cavity in sequence from a water inlet to a water outlet, the upper impact cavity is fixed in the connector body, the impact cushion block and the rock core breaking hammer are fixed in the bit body, one end of the impact hammer is fixed in the bit body, the other end of the impact hammer is connected with the upper impact cavity, and conical compacts are arranged at the tail end of the rock core breaking hammer. A traditional shearing rock breaking mode is replaced with the latest conical high-impact-resistance rock breaking mode for the core of the bit, and high-frequency impact is achieved at the core of the bit with pulse energy used by the PDCs, so that the core of the bit works in a rock impact breaking and rock ploughing combined mode, the rock breaking efficiency is improved, the mechanical drilling speed is increased, and the well drilling cost is lowered.
Description
Technical field
The present invention relates to a kind of impact grinding formula PDC drill bit, be mainly used in field of oil drilling.
Background technology
PDC drill bit operationally, is by pure shear state fractured rock, and several composite sheet at traditional PDC drill bit center are very low relative to peripheral composite sheet cutting linear velocity, and cause that PDC drill bit cutting speed is slack-off, and then have a strong impact on the rate of penetration of PDC drill bit.Existing PDC drill bit mostly is tradition PDC drill bit, including now novel PDC Bit, drill bit heart portion still shears broken rock mode for tradition and works, because drill bit heart portion linear velocity is very low, the serious efficiency of breaking rock restricting PDC drill bit, affect rate of penetration, if the efficiency of breaking rock in drill bit heart portion can be improved, just can be greatly improved the rate of penetration of drill bit at identical conditions.
Summary of the invention
The technical problem to be solved in the present invention is: provides one to improve rate of penetration, discharges a large amount of rock interior stress, promote the drillability of rock, improve efficiency of breaking rock, improve rate of penetration, saves the impact grinding formula PDC drill bit of drilling cost.
Impact grinding formula PDC drill bit of the present invention, including adapter body and the drill main body that is connected with adapter body, adapter body is internally formed the water flowing chamber connected with drill main body, water flowing intracavity sets gradually interconnective upper impact cavity, jump bit, impact cushion block and disintegration of core hammer from water inlet to outlet, upper impact cavity is fixed in adapter body, impact cushion block and disintegration of core hammer is fixed in drill main body, jump bit one end is fixed in drill main body, the other end impacts cavity on connecting, and disintegration of core hammer end arranges taper composite sheet.
Traditional shearing broken rock mode and adopt up-to-date taper high impact resistance PDC composite sheet has been abandoned in drill bit heart portion, pulse energy is utilized to realize high-frequency percussion in drill bit heart portion, drill bit heart portion is made to cut in the way of rock combines carry out work by impact grinding rock and plough, be embedded in the taper composite sheet in disintegration of core peen portion under bit drives by plough cut and impact combine in the way of broken rock, this broken rock mode substantially increases the speed that drill bit heart portion creeps into the broken rock of pure shear, release a large amount of rock interior stress, promote the drillability of rock, improve efficiency of breaking rock, improve rate of penetration, save drilling cost.Cleaner for high-pressure drilling fluid enters drill bit by joint inner inlet mouth, first time is occurred to impact through upper impact cavity, drilling fluid continues through jump bit and occurs second time to impact, the impact energy of high frequency drives jump bit and upper impact cavity to move downward, knock impact pad block energy and pass to impact cushion block, disintegration of core hammer and taper composite sheet, be embedded in the taper composite sheet in disintegration of core peen portion under bit drives by plough cut and impact combine in the way of broken rock, this broken rock mode substantially increases the speed that drill bit heart portion creeps into the broken rock of pure shear, release a large amount of rock interior stress, promote the drillability of rock.
Described adapter body forms intake tunnel, and upper impact inside cavity forms the first impact chamber, and the second impact chamber that the first impact chamber is formed with jump bit connects.
Described disintegration of core hammer end arranges quartering hammer nozzle, disintegration of core hammer is internal arranges the first quartering hammer nozzle passage connected with quartering hammer nozzle, drill main body is internal arranges the second quartering hammer nozzle passage connected with the first quartering hammer nozzle passage, and the second quartering hammer nozzle passage connects with water flowing chamber.
One end that described jump bit is connected with drill main body arranges the jump bit outlet communicated with water flowing chamber.
It is respectively provided with sealing ring between described impact cushion block and jump bit and drill main body, impacts and between cushion block and disintegration of core hammer, sealing ring is set.
Described taper composite sheet is set to three, and one of them taper composite sheet is positioned at home position, and other two is positioned at the both sides of the taper composite sheet of home position.
Described quartering hammer nozzle is set to two.
Cleaner for high-pressure drilling fluid enters drill bit by adapter body inner inlet mouth, impacting intracavity through the first of upper impact cavity occurs first time to impact, drilling fluid continues through the second of jump bit and impacts intracavity generation second time impact, the impact energy of high frequency drives jump bit and upper impact cavity to move downward, knock impact cushion block, energy passes to impact cushion block, disintegration of core hammer and taper composite sheet, be embedded in the taper composite sheet in disintegration of core peen portion under bit drives by plough cut and impact combine in the way of broken rock, this broken rock mode substantially increases the speed that drill bit heart portion creeps into the broken rock of pure shear, release a large amount of rock interior stress, promote the drillability of rock.
The invention has the beneficial effects as follows:
Traditional shearing broken rock mode and adopt up-to-date taper high impact resistance has been abandoned in drill bit heart portion, the pulse energy that PDC composite sheet utilizes realizes high-frequency percussion in drill bit heart portion, drill bit heart portion is made to cut in the way of rock combines carry out work by impact grinding rock and plough, improve efficiency of breaking rock, improve rate of penetration, save drilling cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the plan structure schematic diagram of Fig. 1.
Fig. 3 is the structural representation of upper impact cavity and jump bit.
Fig. 4 is the cross section structure schematic diagram of A-A in Fig. 3.
Fig. 5 is the structural representation impacting cushion block and disintegration of core hammer.
Fig. 6 is the cross section structure schematic diagram of B-B in Fig. 5.
In figure: 1, adapter body；2, upper impact cavity；3, jump bit；4, sealing ring；5, cushion block is impacted；6, disintegration of core hammer；7, drill main body；8, taper composite sheet；9, quartering hammer nozzle；10, the first quartering hammer nozzle passage；11, the second quartering hammer nozzle passage；12, jump bit outlet；13, second impacts chamber；14, first impacts chamber；15, intake tunnel.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described further:
As shown in Fig. 1～Fig. 6, impact grinding formula PDC drill bit of the present invention, including adapter body 1 and the drill main body 7 that is connected with adapter body 1, adapter body 1 is internally formed the water flowing chamber connected with drill main body 7, water flowing intracavity sets gradually interconnective upper impact cavity 2 from water inlet to outlet, jump bit 3, impact cushion block 5 and disintegration of core hammer 6, upper impact cavity 2 is fixed in adapter body 1, impact cushion block 5 and disintegration of core hammer 6 is fixed in drill main body 7, jump bit 3 one end is fixed in drill main body 7, the other end connects upper impact cavity 2, disintegration of core is hammered 6 ends into shape and is arranged taper composite sheet 8.Adapter body 1 forms intake tunnel 15, and upper impact cavity 2 is internally formed the first impact chamber 14, and the second impact chamber 13 that the first impact chamber 14 is formed with jump bit 3 connects.Disintegration of core is hammered 6 ends into shape and is arranged quartering hammer nozzle 9, disintegration of core hammer 6 is internal arranges the first quartering hammer nozzle passage 10 connected with quartering hammer nozzle 9, drill main body 7 is internal arranges the second quartering hammer nozzle passage 11 connected with the first quartering hammer nozzle passage 10, and the second quartering hammer nozzle passage 11 connects with water flowing chamber.One end that jump bit 3 is connected with drill main body 7 arranges the jump bit outlet 12 communicated with water flowing chamber.Impact and between cushion block 5 and jump bit 3 and drill main body 7, be respectively provided with sealing ring 4, impact and between cushion block 5 and disintegration of core hammer 6, sealing ring 4 is set.Taper composite sheet 8 is set to three, and one of them taper composite sheet 8 is positioned at home position, and other two is positioned at the both sides of the taper composite sheet 8 of home position.Quartering hammer nozzle 9 is set to two.
Cleaner for high-pressure drilling fluid enters drill bit by adapter body 1 inner inlet mouth, first time is occurred to impact through upper impact cavity 2, drilling fluid continues through jump bit 3 and occurs second time to impact, the impact energy of high frequency drives jump bit 3 and upper impact cavity 2 to move downward, knock impact cushion block 5 energy and pass to impact cushion block 5, disintegration of core hammer 6 and taper composite sheet 8, be embedded in disintegration of core hammer into shape the taper composite sheet 8 at 6 tops under bit drives by plough cut and impact combine in the way of broken rock, this broken rock mode substantially increases the speed that drill bit heart portion creeps into the broken rock of pure shear, release a large amount of rock interior stress, promote the drillability of rock.
Claims (7)
1. an impact grinding formula PDC drill bit, it is characterized in that: include adapter body (1) and the drill main body (7) being connected with adapter body (1), adapter body (1) is internally formed, with drill main body (7), the water flowing chamber connected, water flowing intracavity sets gradually interconnective upper impact cavity (2) from water inlet to outlet, jump bit (3), impact cushion block (5) and disintegration of core hammer (6), upper impact cavity (2) is fixed in adapter body (1), impact cushion block (5) and disintegration of core hammer (6) is fixed in drill main body (7), jump bit (3) one end is fixed in drill main body (7), the other end impacts cavity (2) on connecting, disintegration of core hammer (6) end arranges taper composite sheet (8).
2. impact grinding formula PDC drill bit according to claim 1, it is characterized in that: adapter body (1) forms intake tunnel (15), upper impact cavity (2) is internally formed the first impact chamber (14), and the second impact chamber (13) that the first impact chamber (14) is formed with jump bit (3) connects.
3. impact grinding formula PDC drill bit according to claim 1, it is characterized in that: disintegration of core hammer (6) end arranges quartering hammer nozzle (9), disintegration of core hammer (6) is internal arranges the first quartering hammer nozzle passage (10) connected with quartering hammer nozzle (9), drill main body (7) is internal arranges the second quartering hammer nozzle passage (11) connected with the first quartering hammer nozzle passage (10), and the second quartering hammer nozzle passage (11) connects with water flowing chamber.
4. impact grinding formula PDC drill bit according to claim 1, it is characterised in that: one end that jump bit (3) is connected with drill main body (7) arranges the jump bit outlet (12) communicated with water flowing chamber.
5. impact grinding formula PDC drill bit according to claim 1, it is characterized in that: impact and between cushion block (5) and jump bit (3) and drill main body (7), be respectively provided with sealing ring (4), impact and between cushion block (5) and disintegration of core hammer (6), sealing ring (4) is set.
6. impact grinding formula PDC drill bit according to claim 1, it is characterized in that: taper composite sheet (8) is set to three, one of them taper composite sheet (8) is positioned at home position, and other two is positioned at the both sides of the taper composite sheet (8) of home position.
7. impact grinding formula PDC drill bit according to claim 3, it is characterised in that: quartering hammer nozzle (9) is set to two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610268964.3A CN105804658B (en) | 2016-04-27 | 2016-04-27 | Impact grinding formula PDC drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610268964.3A CN105804658B (en) | 2016-04-27 | 2016-04-27 | Impact grinding formula PDC drill bit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105804658A true CN105804658A (en) | 2016-07-27 |
| CN105804658B CN105804658B (en) | 2018-03-13 |
Family
ID=56458723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610268964.3A Active CN105804658B (en) | 2016-04-27 | 2016-04-27 | Impact grinding formula PDC drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105804658B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108179983A (en) * | 2018-02-26 | 2018-06-19 | 西南石油大学 | It is a kind of to rush the efficient rock-breaking combination tool for revolving-scraping and cut staged effect |
| CN108612480A (en) * | 2018-06-29 | 2018-10-02 | 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 |
| CN109930998A (en) * | 2019-05-07 | 2019-06-25 | 刘伟 | A kind of PDC drill bit rock crushing tool |
| CN110029933A (en) * | 2019-04-23 | 2019-07-19 | 西南石油大学 | Based on turbo-driven double speed PDC drill bit |
| CN111425141A (en) * | 2020-04-10 | 2020-07-17 | 台州市木落自动化科技有限公司 | Drill rod of hydraulic breaking hammer |
| CN112127790A (en) * | 2020-09-11 | 2020-12-25 | 祁东县锋速钻探工具有限公司 | Diamond geological drill bit capable of cooling and discharging chips for drill bit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090183920A1 (en) * | 2006-03-23 | 2009-07-23 | Hall David R | Downhole Percussive Tool with Alternating Pressure Differentials |
| CN102900371A (en) * | 2012-10-18 | 2013-01-30 | 中国石油天然气股份有限公司 | Impact rotary-cut composite rock breaking tool |
| CN103628819A (en) * | 2013-11-20 | 2014-03-12 | 中国石油集团渤海钻探工程有限公司 | Near-bit torsion impactor |
| CN203891771U (en) * | 2014-05-16 | 2014-10-22 | 河北锐石钻头制造有限公司 | Percussive PDC (polycrystalline diamond compact) bit |
| CN105221068A (en) * | 2015-11-10 | 2016-01-06 | 西南石油大学 | Percussion is utilized to improve the New Type of PDC Bit of heart portion efficiency of breaking rock |
| CN205558815U (en) * | 2016-04-27 | 2016-09-07 | 山东国岳金刚石制品有限公司 | Strike crushing -type PDC drill bit |
-
2016
- 2016-04-27 CN CN201610268964.3A patent/CN105804658B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090183920A1 (en) * | 2006-03-23 | 2009-07-23 | Hall David R | Downhole Percussive Tool with Alternating Pressure Differentials |
| CN102900371A (en) * | 2012-10-18 | 2013-01-30 | 中国石油天然气股份有限公司 | Impact rotary-cut composite rock breaking tool |
| CN103628819A (en) * | 2013-11-20 | 2014-03-12 | 中国石油集团渤海钻探工程有限公司 | Near-bit torsion impactor |
| CN203891771U (en) * | 2014-05-16 | 2014-10-22 | 河北锐石钻头制造有限公司 | Percussive PDC (polycrystalline diamond compact) bit |
| CN105221068A (en) * | 2015-11-10 | 2016-01-06 | 西南石油大学 | Percussion is utilized to improve the New Type of PDC Bit of heart portion efficiency of breaking rock |
| CN205558815U (en) * | 2016-04-27 | 2016-09-07 | 山东国岳金刚石制品有限公司 | Strike crushing -type PDC drill bit |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108179983A (en) * | 2018-02-26 | 2018-06-19 | 西南石油大学 | It is a kind of to rush the efficient rock-breaking combination tool for revolving-scraping and cut staged effect |
| CN108612480A (en) * | 2018-06-29 | 2018-10-02 | 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 |
| CN110029933A (en) * | 2019-04-23 | 2019-07-19 | 西南石油大学 | Based on turbo-driven double speed PDC drill bit |
| CN109930998A (en) * | 2019-05-07 | 2019-06-25 | 刘伟 | A kind of PDC drill bit rock crushing tool |
| CN111425141A (en) * | 2020-04-10 | 2020-07-17 | 台州市木落自动化科技有限公司 | Drill rod of hydraulic breaking hammer |
| CN112127790A (en) * | 2020-09-11 | 2020-12-25 | 祁东县锋速钻探工具有限公司 | Diamond geological drill bit capable of cooling and discharging chips for drill bit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105804658B (en) | 2018-03-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105804658A (en) | Impact breaking type PDC bit | |
| CN105971660B (en) | Ultrasonic cavitation and hydraulic fracturing joint incentive coal bed gas pumping method | |
| CN107476814B (en) | Integrated construction equipment and method for self-vibration jet grouting anchor rod | |
| CN109630020A (en) | Multichannel high-low pressure composite plasma boring method | |
| CN201221317Y (en) | PDC drill bit | |
| CN106246175B (en) | A kind of pulsing jet and mechanical shock combined-breaking rock mechanism | |
| CN101586441A (en) | High-pressure water jet system and method for drilling and enlarging holes on coal bed | |
| CN110195580A (en) | A kind of gas-liquid two-phase synergy coal seam anti-reflection method | |
| CN108547604A (en) | A kind of brill punching press integrated apparatus and method | |
| CN204827232U (en) | Water conservancy pulser for well drilling | |
| CN114718465B (en) | Dynamic pull-shear tunneling drill bit and composite rock breaking method | |
| CN208885190U (en) | A kind of Mixed drilling bit with plow tooth | |
| CN105178870B (en) | A kind of monoblock type hard alloy impulse jet nozzle and its production technology | |
| CN102345445A (en) | Drill bit for particle impact drilling technology | |
| CN205778537U (en) | Advanced guide type down-hole hammer way-type drilling unit | |
| CN102913136B (en) | Helical-blade spiral-flow type flow-channel drill | |
| CN107989554A (en) | Particle impact PDC drilling bit | |
| CN204002567U (en) | Three wing particle impacting drill bits | |
| CN104481406B (en) | Particle impacting well test drill bit | |
| CN106761386B (en) | A kind of drilling well auxiliary rock tool | |
| CN208416512U (en) | A kind of brill punching press integrated apparatus | |
| CN102268966A (en) | Hard rock crushing drill bit and method for crushing hard rock | |
| CN203022637U (en) | High-pressure water jet plug-drilling drill for lateral drilling | |
| CN206539310U (en) | A kind of drilling well auxiliary rock instrument | |
| CN203097721U (en) | High-energy percussion rock-breaking PDC (polycrystalline diamond compact) drill bit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190102 Address after: 610000 Kowloon Avenue, industrial zone, Xindu District, Chengdu, Sichuan Patentee after: Chengdu Huilingfeng Diamond Bit Co., Ltd. Address before: 255100 Shengchuan Road, Malian Mountain, Zichuan Economic Development Zone, Zibo City, Shandong Province Patentee before: Shandong Guoyue Diamond Product Co.,Ltd. |
|
| TR01 | Transfer of patent right |