CN106050148A - Novel PDC drill bit with stable function - Google Patents
Novel PDC drill bit with stable function Download PDFInfo
- Publication number
- CN106050148A CN106050148A CN201610609255.7A CN201610609255A CN106050148A CN 106050148 A CN106050148 A CN 106050148A CN 201610609255 A CN201610609255 A CN 201610609255A CN 106050148 A CN106050148 A CN 106050148A
- Authority
- CN
- China
- Prior art keywords
- wing
- drill bit
- operator
- auxiliary
- cutting tooth
- 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
Links
- 239000002131 composite material Substances 0.000 claims description 18
- 239000011159 matrix material Substances 0.000 claims description 10
- 230000006641 stabilisation Effects 0.000 claims description 8
- 238000011105 stabilization Methods 0.000 claims description 8
- 238000005553 drilling Methods 0.000 abstract description 10
- 239000011435 rock Substances 0.000 abstract description 7
- 230000036346 tooth eruption Effects 0.000 abstract description 4
- 150000001875 compounds Chemical class 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000004744 fabric Substances 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009191 jumping Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
- 238000009827 uniform distribution 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
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
- E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
-
- 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
- E21B10/602—Drill bits characterised by conduits or nozzles for drilling fluids the bit being a rotary drag type bit with blades
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 novel ODC drill bit with a stale function. The novel ODC drill bit comprises a drill bit base body (1) and a drill bit crown (2) arranged on the drill bit base body (1). A main cutter wing A (3), a main cutter wing B (4) and a main cutter wing C (5) are arranged on the drill bit crown (2), a compound sheet is embedded in each cutting tooth I (6), cutting teeth II are distributed on an auxiliary cutter wing a (7), an auxiliary cutter wing b (8) and an auxiliary cutter wing c (9), the perpendicular distance between the cutter teeth I (6) at the lowermost ends of the main cutter wings and the cutting teeth II (10) at the lowermost ends of the auxiliary cutter wings is H, and H is smaller than 10 mm. The novel ODC drill bit has the advantages that the phenomena that when the requirements for a small number of cutter wings and a high mechanical drilling speed are met, insufficient support of a drill bit to the stratum occurs, the stability is poor, and deflection of a borehole and suppress jump in a soft and hard staggered stratum are likely to be caused are avoided; meanwhile, the rock breaking aggressiveness is improved, the rock braking speed is increased, the service life of the drill bit is prolonged, and the drilling cost is reduced.
Description
Technical field
The present invention relates to oil-gas drilling engineering, mining, geological drilling, architectural engineering, Tunnel Engineering, shield
And the technical equipment field such as no-dig technique, a kind of New Type of PDC Bit with stabilization function.
Background technology
During oil-gas field development, the speed of drilling well and efficiency decide the speed developed oil fields.Mistake in drilling well
Cheng Zhong, conventional PDC drill bit is in middle soft formation and soft formation, and PDC drill bit that wing number the is few PDC drill bit more than wing number is more
Having higher aggressivity, its rate of penetration is the most of a relatively high, but owing to wing number is less, for the stability of strutting system on stratum
Poor, easily cause well deflection, wayward wellbore quality；When creeping in the stratum that soft or hard is interlocked especially, wing number
Can produce the phenomenon suppressing jumping during less PDC drill bit wedging stratum, thus cause composite sheet collapse tooth, reduce the longevity of drill bit
Life, adds the cost of winning of drilling well.
At present, the research and development for the drill bit of stabilization function both at home and abroad are all on number of teeth change or bizet Curve Design,
But all can not solve the relation between wing quantity and rate of penetration and stability of bit well, bore for changing PDC
The traditional structure of head does not also have bigger breakthrough.
Summary of the invention
It is an object of the invention to overcome in the case of meeting wing number and be less and time rate of penetration is higher, drill bit occurs
The weary enough supports of break, poor stability over the ground, easily cause well deflection and produce when soft or hard interlocks stratum to suppress jumping existing
As, it is provided that a kind of New Type of PDC Bit with stabilization function.
The purpose of the present invention is achieved through the following technical solutions: a kind of New Type of PDC Bit with stabilization function, its bag
Include bit matrix and the drill bit being arranged on bit matrix, described drill bit is provided with operator wing A, operator wing B,
Operator wing C, operator wing A, operator wing B and operator wing C are uniformly distributed on setting, operator wing A, operator wing B and operator wing C and are distributed
Cutting tooth I, the spacing of the most adjacent two cutting tooth I is equal, and each cutting tooth I is all embedded with composite sheet, described drill bit hat
Being additionally provided with auxiliary wing a, auxiliary wing b and auxiliary wing c in portion, auxiliary wing a, auxiliary wing b and auxiliary wing c are uniform
Distribution is arranged, and auxiliary wing a is arranged between operator wing A and operator wing B, and auxiliary wing b is arranged on operator wing B and operator wing C
Between, auxiliary wing c is arranged between operator wing A and operator wing C, and auxiliary wing a, auxiliary wing b and auxiliary wing c are distributed
Having cutting tooth II, the spacing between the most adjacent two cutting tooth II is equal, and each cutting tooth II is all embedded with composite sheet, described
The operator wing on cutting tooth I vertical distance of cutting tooth II of bottom on auxiliary wing of bottom be that H, H are less than 10mm.
Multiple hydrophthalmia it is additionally provided with on described drill bit.
The invention have the advantages that (1) this PDC drill bit meets minority wing and creeps into, there is stronger aggressivity, machinery
Drilling speed is of a relatively high；(2) this PDC drill bit meets the stability of many wings, and the supportive for stratum is preferable, it is ensured that well bore matter
Amount；(3) creep into soft or hard interlock stratum time, on the operator wing, the cutting tooth I of bottom is away from assisting the cutting tooth of bottom on wing
The vertical distance of II is H, reduces the drill bit sensitivity on staggered stratum, and protection drill bit bores tooth, improves the service life of drill bit,
Save drilling cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the front view of the present invention；
Fig. 3 is the top view of the present invention；
In figure, 1-bit matrix, 2-drill bit, 3-operate wing A, 4-operator wing B, 5-operator wing C, 6-cutting tooth I, 7-auxiliary
Wing a, 8-assist wing b, 9-auxiliary wing c, 10-to cut tooth II, 11-hydrophthalmia.
Detailed description of the invention
The present invention will be further described below in conjunction with the accompanying drawings, and protection scope of the present invention is not limited to the following stated:
As Figure 1-3, a kind of New Type of PDC Bit with stabilization function, it includes bit matrix 1 and is arranged on bit matrix
Drill bit 2 on 1, bit matrix 1 uses rigid body or tungsten carbide matrix formula drill bit, and bit matrix 1 uses with drill bit 2
It is welded, described drill bit 2 is provided with operator wing A3, operator wing B4, operator wing C5, operator wing A3, operator wing B4
It is uniformly distributed on setting, operator wing A3, operator wing B4 and operator wing C5 with operator wing C5 and cutting tooth I6 is distributed, on the operator wing
Cutting tooth I6 uses conventional design cloth tooth, the cloth tooth mode of the most circumferentially equidistant helix, utilizes what equal distribution angle θ was distributed etc.
Control the distance of adjacent two cutting teeth on same helix away from helix identical, radially use the cloth tooth of space width 5mm
Structure, and suitably adjust the cutting tooth near bit central to meet the requirement that shaft bottom is completely covered.Described the most adjacent two
The spacing of individual cutting tooth I6 is equal, and each cutting tooth I6 is all embedded with composite sheet.
As Figure 1-3, drill bit 2 is additionally provided with auxiliary wing a7, auxiliary wing b8 and auxiliary wing c9, auxiliary
Wing a7, auxiliary wing b8 and auxiliary wing c9 are uniformly distributed setting, and auxiliary wing a7 is arranged on operator wing A3 and operator wing B4
Between, auxiliary wing b8 is arranged between operator wing B4 and operator wing C5, and auxiliary wing c9 is arranged on operator wing A3 and the operator wing
Between C5, on auxiliary wing a7, auxiliary wing b8 and auxiliary wing c9, cutting tooth II10, the most adjacent two cutting teeth are distributed
Spacing between II10 is equal, and each cutting tooth II10 is all embedded with composite sheet, the cutting of bottom on the described operator wing
Tooth I6 vertical distance of the cutting tooth II10 of bottom on auxiliary wing is that H, H are less than 10mm.
As Figure 1-3, described drill bit 2 is additionally provided with multiple hydrophthalmia 11.
When this PDC drill bit is when creeping into soft stratum, under the effect of the pressure of the drill, first be operator wing A3, operator wing B4 and
Composite sheet wedging stratum on operator wing C5, under the effect that motor drives this PDC drill bit to rotate, operator wing A3, operator wing B4
Starting rotary-cut rock stratum with the composite sheet on operator wing C5, owing to only three the operator wings participate in broken rock, wing number is relatively fewer,
Thus improve brokenly aggressivity and the speed of rock；When the composite sheet rotary-cut rock stratum on operator wing A3, operator wing B4, operator wing C5
When the degree of depth reaches H-number, auxiliary wing a7, auxiliary wing b8 start to contact the most in a large number well with the composite sheet on auxiliary wing c9
The end, thus add this PDC drill bit and shaft bottom is propped up count, improve the stability of drill bit further, it is therefore prevented that sending out of hole deviation
Raw, gradually participate in the rock stratum in shaft bottom due to the substantial amounts of composite sheet on auxiliary wing a7, auxiliary wing b8 and auxiliary wing c9 again
Cutting, the discrete monolithic composite sheet pressure to stratum largely, make the wedging amount of composite sheet substantially remain on H-number.
When this PDC drill bit creep into soft or hard interlock stratum time, under the effect of the pressure of the drill, operator wing A3, operator wing B4 and master
Composite sheet wedging soft formation on wing C5, under the effect that motor drives this PDC drill bit to rotate, operator wing A3, operator wing B4
Rotary-cut incompetent bed is started, when operator wing A3, operator wing B4 and wing C5 rotary-cut soft formation of operating with the composite sheet on operator wing C5
When the degree of depth reaches H-number, auxiliary wing a7, auxiliary wing b8 with on auxiliary wing c9 composite sheet start substantial amounts of to contact well
The end, when entering hardpan from soft stratum, is first operator wing A3, the wing B4 and operator wing C5 that operates starts rotary-cut hard place
Layer, now assists the composite sheet on wing a7, auxiliary wing b8 and auxiliary wing c9 also to stay in soft stratum, and assists wing
The cutting tooth II10 distribution of a7, auxiliary wing b8 and auxiliary wing c9 is staggered, collapses tooth phenomenon when having buffered hardpan, reduces
The drill bit sensitivity to interlayer, protects drill bit, improves the service life of drill bit, reduce drilling cost.
The above is only the preferred embodiment of the present invention, it should be understood that the present invention is not limited to described herein
Form, is not to be taken as the eliminating to other embodiments, and can be used for other combinations various, amendment and environment, and can be at this
In the described contemplated scope of literary composition, it is modified by above-mentioned teaching or the technology of association area or knowledge.And those skilled in the art are entered
The change of row and change, the most all should be at the protection domains of claims of the present invention without departing from the spirit and scope of the present invention
In.
Claims (2)
1. a New Type of PDC Bit with stabilization function, it is characterised in that: it includes bit matrix (1) and is arranged on drill bit
Drill bit (2) on matrix (1), described drill bit (2) is provided with operator wing A(3), operator wing B(4), operator wing C
(5), operate wing A(3), operator wing B(4) and operator wing C(5) be uniformly distributed setting, operate wing A(3), operator wing B(4) and operate
Wing C(5) on be distributed cutting tooth I(6), the most adjacent two cutting tooth I(6) spacing equal, each cutting tooth I(6) on the most embedding
Enter and have composite sheet, described drill bit (2) is additionally provided with auxiliary wing a(7), auxiliary wing b(8) and assist wing c
(9), assist wing a(7), auxiliary wing b(8) and auxiliary wing c(9) be uniformly distributed setting, auxiliary wing a(7) be arranged on master
Wing A(3) and operator wing B(4) between, assist wing b(8) it is arranged on operator wing B(4) and operator wing C(5) between, assist cutter
Wing c(9) be arranged on operator wing A(3) and operator wing C(5) between, assist wing a(7), auxiliary wing b(8) and assist wing c
(9) be distributed on cutting tooth II(10), the most adjacent two cutting tooth II(10) between spacing equal, each cutting tooth II(10)
On be all embedded with composite sheet, the cutting tooth I(6 of bottom on the described operator wing) the cutting tooth II of bottom on auxiliary wing
(10) vertical distance is that H, H are less than 10mm.
A kind of New Type of PDC Bit with stabilization function the most according to claim 1, it is characterised in that: described drill bit
Multiple hydrophthalmia (11) it is additionally provided with on bizet (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610609255.7A CN106050148A (en) | 2016-07-29 | 2016-07-29 | Novel PDC drill bit with stable function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610609255.7A CN106050148A (en) | 2016-07-29 | 2016-07-29 | Novel PDC drill bit with stable function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106050148A true CN106050148A (en) | 2016-10-26 |
Family
ID=57196564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610609255.7A Pending CN106050148A (en) | 2016-07-29 | 2016-07-29 | Novel PDC drill bit with stable function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106050148A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111980587A (en) * | 2020-07-24 | 2020-11-24 | 四川川庆石油钻采科技有限公司 | Shockproof drill bit for horizontal well and manufacturing method thereof |
| CN112814575A (en) * | 2021-03-12 | 2021-05-18 | 西南石油大学 | Gas drilling drill bit capable of preventing rock burst and drill sticking |
| CN113775296A (en) * | 2021-11-11 | 2021-12-10 | 胜利油田海胜实业有限责任公司 | PDC drill bit with adjustable caliber for marlite exploration |
| CN117432340A (en) * | 2023-12-21 | 2024-01-23 | 西南石油大学 | PDC drill bit with high specific pressure |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2294072A (en) * | 1994-10-12 | 1996-04-17 | Smith International | Drill bit having stability enhancing cutting structure |
| EP0710765A2 (en) * | 1994-11-01 | 1996-05-08 | Camco Drilling Group Limited | Improvements relating to rotary drill bits |
| CN2352665Y (en) * | 1998-09-18 | 1999-12-08 | 胜利石油管理局钻井工艺研究院 | Two stage cutting type PDC drilling bit |
| CN1763349A (en) * | 2004-10-22 | 2006-04-26 | 中国石化集团胜利石油管理局钻井工艺研究院 | Oil and gas well drilling PDC drill bit |
| US20110000714A1 (en) * | 2009-07-01 | 2011-01-06 | Smith International, Inc. | Stabilizing members for fixed cutter drill bit |
| CN202645440U (en) * | 2012-07-05 | 2013-01-02 | 西安通源正合石油工程有限公司 | Multi-wing-group petroleum drilling PDC (Polycrystalline Diamond Compact) drill bit |
| CN203669752U (en) * | 2014-01-10 | 2014-06-25 | 四川联鼎盛吉科技发展有限公司 | Six-blade PDC bit for oil drilling |
| CN204729008U (en) * | 2015-07-13 | 2015-10-28 | 武汉亿斯达工具有限公司 | A kind of PDC drill bit for fast drilling |
| CN105793514A (en) * | 2013-12-06 | 2016-07-20 | 哈里伯顿能源服务公司 | Rotary drill bit including multi-layer cutting elements |
| CN205805420U (en) * | 2016-07-29 | 2016-12-14 | 成都保瑞特钻头有限公司 | A kind of New Type of PDC Bit with stabilization function |
-
2016
- 2016-07-29 CN CN201610609255.7A patent/CN106050148A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2294072A (en) * | 1994-10-12 | 1996-04-17 | Smith International | Drill bit having stability enhancing cutting structure |
| EP0710765A2 (en) * | 1994-11-01 | 1996-05-08 | Camco Drilling Group Limited | Improvements relating to rotary drill bits |
| CN2352665Y (en) * | 1998-09-18 | 1999-12-08 | 胜利石油管理局钻井工艺研究院 | Two stage cutting type PDC drilling bit |
| CN1763349A (en) * | 2004-10-22 | 2006-04-26 | 中国石化集团胜利石油管理局钻井工艺研究院 | Oil and gas well drilling PDC drill bit |
| US20110000714A1 (en) * | 2009-07-01 | 2011-01-06 | Smith International, Inc. | Stabilizing members for fixed cutter drill bit |
| CN202645440U (en) * | 2012-07-05 | 2013-01-02 | 西安通源正合石油工程有限公司 | Multi-wing-group petroleum drilling PDC (Polycrystalline Diamond Compact) drill bit |
| CN105793514A (en) * | 2013-12-06 | 2016-07-20 | 哈里伯顿能源服务公司 | Rotary drill bit including multi-layer cutting elements |
| CN203669752U (en) * | 2014-01-10 | 2014-06-25 | 四川联鼎盛吉科技发展有限公司 | Six-blade PDC bit for oil drilling |
| CN204729008U (en) * | 2015-07-13 | 2015-10-28 | 武汉亿斯达工具有限公司 | A kind of PDC drill bit for fast drilling |
| CN205805420U (en) * | 2016-07-29 | 2016-12-14 | 成都保瑞特钻头有限公司 | A kind of New Type of PDC Bit with stabilization function |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111980587A (en) * | 2020-07-24 | 2020-11-24 | 四川川庆石油钻采科技有限公司 | Shockproof drill bit for horizontal well and manufacturing method thereof |
| CN112814575A (en) * | 2021-03-12 | 2021-05-18 | 西南石油大学 | Gas drilling drill bit capable of preventing rock burst and drill sticking |
| CN112814575B (en) * | 2021-03-12 | 2022-04-29 | 西南石油大学 | Gas drilling drill bit capable of preventing rock burst and drill sticking |
| CN113775296A (en) * | 2021-11-11 | 2021-12-10 | 胜利油田海胜实业有限责任公司 | PDC drill bit with adjustable caliber for marlite exploration |
| CN117432340A (en) * | 2023-12-21 | 2024-01-23 | 西南石油大学 | PDC drill bit with high specific pressure |
| CN117432340B (en) * | 2023-12-21 | 2024-03-22 | 西南石油大学 | PDC drill bit with high specific pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161026 |
|
| RJ01 | Rejection of invention patent application after publication |