Whole full consumption self-compensating type way-type drilling unit
Technical field
The present invention relates to a kind of oil and gas well drilling drilling tool and method, in particular to a kind of entirety consumes self-compensating type group entirely
Bench drill tool.
Background technique
Petroleum, natural gas development process in, drilling well is an important job, and in drilling process, and drilling tool has
Highly important position, in current drilling tool, generally use pdc drill bit or rock bit, existing pdc drill bit, be use
Hard wear-resistant material is welded on bit body and is formed, and problem is: its service life is usually just to need in 150 meters or so of drilling
Will more bit change, and existing oil drilling depth has 6000-7000 meters, and the length of horizontal well can reach 15000 meters, and replace
Drilling work need from well head by all drilling rods take out more bit change, such as 6000-7000 meter deep-well needs at least 3 days from out
Drilling rod, after replacing finishing drilling head, then lower going-into-well bottom carried out drilling well work again at least 3 days time, that is to say, that needs consuming closely
One week time could replace a drill bit, and each pdc drill bit can only creep into 150 meters, because of this time cost, cause to bore
Well it is with high costs, well depth is longer, and cost is higher;In addition, also need to carry out the well cementing operation of oil well after the completion of drilling well, well cementation
Not in time, it is likely to result in the oil well being drilled to collapse, causes the entire mining operations of the well to fail, including early period
Exploration operation, wellbore construction, it is therefore desirable to well cementing operation is carried out to the oil well being drilled as early as possible, and in drilling process
Frequently replacement drilling work not only occupies the time of well cementing operation, but also frequently to will lead to geological conditions poor for rountrip
Place, which will appear, to be collapsed, and the failure of entire oil well operation is caused.
Currently, the research of the drill bit of oil drilling is concentrated mainly on material, heat treatment, circulation etc., it is a degree of to mention
The high depth of drilling well, but they have a feature, are exactly without breaking through the compensation problem after drilling tool consumes, in this way, just making
The service life of drill bit is greatly limited, in this way, there are the problem of be exactly drill bit replacement frequency it is still high, drilling well
Cost decreases, but still very high on the whole.
Therefore, design invention one can creep into and far surpass the new drilling tools of 150 meters of distances, can significantly reduce drilling well at
This, reduces the risk that oil well collapses.
Summary of the invention
The purpose of the present invention is to drawbacks described above of the existing technology, a kind of entirety is provided and consumes self-compensating type combination entirely
Hard, wear-resistant alloy block is extended through the inside of drill bit, and sequential permutation and combination, in this way, drill bit is in the same of abrasion by drilling tool
When, hard, wear-resistant alloy block is also worn simultaneously, since hard, wear-resistant alloy block and drill bit form entirety, drill bit can do compared with
It is long, so that it may to reduce the replacement frequency of drilling tool.
A kind of entirety provided by the invention consumes self-compensating type way-type drilling unit entirely, and technical solution is: including fluted drill ontology (1)
With shank (2), (3) are carried on the back in the spiral helicine cutting that a group or more of protrusions are equipped on fluted drill ontology (1), one group or
The center of one group or more of sunk helical form chip space (4), the fluted drill ontology (1) and shank (2) is hollow structure
(5), multiple groups are milled out on cutting back (3) and hold tool bore (6), be communicated to and hold in tool bore (6) from chip removal traverse drill welding hole (7), each
Hold in tool bore and hard, wear-resistant alloy block (8) are installed, is poured copper water to tool bore (6) are held by welding hole (7), it is resistance to that copper water enters hard
It merges gold bullion (8) and holds the gap between tool bore (6), hard, wear-resistant alloy block (8) is fixed on after cooling and is held in tool bore (6).
Preferably, it is carried on the back along the cutting on fluted drill ontology (1), is successively arranged multiple equally distributed appearance tool bores (6), from
And so that multiple groups is held tool bore (6) and be arranged in parallel respectively, be arranged in parallel hard, wear-resistant alloy block (8) in fluted drill ontology
On.
Preferably, above-mentioned appearance tool bore (6) is wedge structure or columnar structured.
Preferably, the main body of above-mentioned hard, wear-resistant alloy block (8) is wedge structure (8.4), and tail portion is equipped with the empennage of expansion
(8.5), the wedge structure (8.4) of main body is inserted into the appearance tool bore of wedge structure, and the empennage (8.5) of expansion is stuck in fluted drill sheet
The outside of body makes the inner cavity of entire fluted drill ontology and outer wall realize wear-resisting functions.
Preferably, the main body of above-mentioned hard, wear-resistant alloy block (8) is cylindrical structure, and head (8.1) are vertebral body structure, tail
Portion (8.2) is trapezium structure, and main body and head (8.1) are inserted into columnar structured appearance tool bore, the trapezoidal knot of tail portion (8.2)
Structure is stuck in the outside of fluted drill ontology, and the inner cavity of entire fluted drill ontology and outer wall is made to realize wear-resisting functions.
Preferably, the center of fluted drill ontology (1) is hollow structure, injects well-flushing along drilling rod by the well head on ground
Liquid rock debris is discharged along the cavity between drilling rod and the borehole wall by the chip space (4) of fluted drill ontology (1), it is desirable that every time
Support liquid is injected before above mentioning drilling rod into well.
Preferably, (3) are carried on the back in the spiral helicine cutting that one group of protrusion is equipped on fluted drill ontology (1), and one group sunk
Helical form chip space (4).
Preferably, above-mentioned welding hole (7) is equipped with screw thread, after copper water is perfused, will assist hard, wear-resistant rod of metal alloy (9)
It is connected in welding hole (7), realizes that auxiliary is wear-resisting.
The production method that a kind of entirety that the present invention mentions consumes self-compensating type way-type drilling unit entirely, manufacturing process are as follows:
One, No. 77 round steel for taking 6 meters or 13 meters, are first made annealing treatment, reduce the hardness of material, and 22RC hardness is reduced to, then
It is machined;
Two, hollow structure first is processed at the center of round steel, then carries out shape machining, according to the quantity of chip space, milled out
Spiral helicine chip space, then multiple groups appearance tool bore is successively milled out in the spiral helicine cutting back of protrusion, and every group of appearance tool bore is upward
Tiltedly stretch to the center of fluted drill ontology;Again from the spiral helicine multiple welding holes of chip removal traverse drill, each welding hole is respectively communicated with each
Group is held in tool bore;It is quenched after the completion, so that hardness is reached 60RC or more, then be tempered, make overall structure flexible;
Three, multiple hard, wear-resistant alloy blocks are sequentially inserted into corresponding appearance tool bore, and pass sequentially through each welding hole injection copper water,
Copper water, which enters, to be held in tool bore, and is entered hard, wear-resistant alloy block and held the gap between tool bore, by hard, wear-resistant alloy after cooling
Block, which is sequentially fixed at, to be held in tool bore.
The production method that a kind of entirety that the present invention mentions consumes self-compensating type way-type drilling unit entirely, manufacturing process are as follows:
One, No. 77 round steel for taking 6 meters or 13 meters, are first made annealing treatment, reduce the hardness of material, and 22RC hardness is reduced to, then
It is machined;
Two, hollow structure first is processed at the center of round steel, then carries out shape machining, milled out a group or more of concave
The spiral helicine chip space gone forms the spiral helicine cutting back of a group or more of protrusions, then in the spiral helicine of protrusion
Cutting back successively mills out multiple groups and holds tool bore, and the upward center for stretching to fluted drill ontology of every group of appearance tool bore;Again from helical form
The multiple welding holes of chip removal traverse drill, each welding hole is respectively communicated with to one group of appearance tool bore, and screw thread is produced on welding hole;It is complete
It is quenched after, so that hardness is reached 60RC or more, then be tempered, make overall structure flexible;
Three, multiple hard, wear-resistant alloy blocks are sequentially inserted into corresponding appearance tool bore, and pass sequentially through each welding hole injection copper water,
Copper water, which enters, to be held in tool bore, and is entered hard, wear-resistant alloy block and held the gap between tool bore, by hard, wear-resistant alloy after cooling
Block, which is sequentially fixed at, to be held in tool bore;Then auxiliary hard, wear-resistant rod of metal alloy (9) is threadedly attached in welding hole (7), it is real
Existing hard, wear-resistant alloy block (8) and the composite structure for assisting hard, wear-resistant rod of metal alloy (9) improves abrasion resistant effect.
A kind of entirety that the present invention mentions consumes the application method of self-compensating type way-type drilling unit, including following procedure entirely:
At the well head of ground, whole full consumption self-compensating type way-type drilling unit is fixed on to the end of drilling rod, and in lower going-into-well, in well
Under the drive of the trepan of mouth, drilling rod realizes that rotation drives the whole self-compensating type way-type drilling unit rotation of consumption entirely, and in fluted drill ontology
(1) and at the hollow structure (5) at the center of shank (2) flushing fluid is injected, flushing fluid drives rock debris along helical form chip space
(4) it is discharged, and along returning out ground well head between drilling rod and the borehole wall;
During the drilling of whole full consumption self-compensating type way-type drilling unit, fluted drill ontology (1) is gradually worn out from head, and is welded
Start to provide wear-resisting functions in the internal multiple groups hard, wear-resistant alloy block (8) of fluted drill ontology (1), with continuing to creep into, cut
Hard, wear-resistant alloy block (8) successively fixed successively provides wear-resisting functions on back (3), realizes continual wear-resisting compensation, in this way,
Entire 6 meters or 13 meters of drilling tool can be made to be depleted to the shank (2) of end always, reintroduce whole full consumption that drilling rod more renews from
Benefit formula way-type drilling unit.
The beneficial effects of the present invention are: carrier of the invention inherently drill bit material or 77# steel, i.e. eutectoid steel, have
The very hardness and cutting power of height;The structure of carrier itself uses fluted drill structure, and in the helical form knot of fluted drill ontology
The cutting back of structure, which is arranged successively to be equipped with, holds tool bore, fixes hard, wear-resistant alloy block in each appearance tool bore, makes its oblique cutting to fiber crops
Flower bores body interior, in addition, hard, wear-resistant alloy block uses special construction, the trapezium structure of tail portion is stuck in fluted drill ontology
Outside makes the inner cavity of entire fluted drill ontology and outer wall also realize wear-resisting functions;Also, it, can also be recessed for fixation
It is vertically provided with welding hole in the helical form chip space to go down, copper water is perfused into appearance tool bore by welding hole, closes hard, wear-resistant
Stronger being fixed on of gold bullion is held in tool bore;
It is arranged successively in addition, holding tool bore along cutting back, and holds the center that tool bore reaches fluted drill ontology obliquely, be convenient for
Successively arrangement;There are also the mechanical refining milling of fluted drill ontology by steel ingot, it is quenched that hardness is made to reach 65RC or more, wherein
Hard, wear-resistant alloy block carries out brazing using YT15 or YT20 etc. and wire bond is added to connect, and grinding-shaping, the connection with drill collar uses drilling rod
Button is threadedly coupled, and the flushing fluid of circulation is passed through by the hollow structure at the center of fluted drill ontology and shank, and negative pressure is added to adjust
Mode carries out;Flushing fluid drives rock debris to be discharged along helical form chip space, and along returning out surface well between drilling rod and the borehole wall
Mouthful.The present invention makes drilling process meet full consumption certainly using the difference between the hardness and hard, wear-resistant alloy block of fluted drill ontology
The performance of benefit can make entire 6 meters or 13 meters of drilling tool be depleted to the shank of end always, reintroduce the entirety that drilling rod more renews
Full consumption self-compensating type way-type drilling unit, reduces the number that removes of drilling rod, the distance once crept into be 10 times of the prior art even with
On, the cost of drilling well is significantly reduced, also reducing the poor place of geological conditions will appear the risk collapsed, improve entire
The success rate of oil well operation.
Detailed description of the invention
Attached drawing 1 is whole half-section diagram of the invention;
Attached drawing 2 is a kind of structural schematic diagram of embodiment of hard, wear-resistant alloy block;
Attached drawing 3 is the structural schematic diagram of second of embodiment of hard, wear-resistant alloy block;
Attached drawing 4 is that fluted drill ontology mills out four chip spaces and is inserted into the schematic cross-section of hard, wear-resistant alloy block;
In upper figure: fluted drill ontology 1, shank 2, cutting back 3, chip space 4, hollow structure 5, appearance tool bore 6, welding hole 7, hard are resistance to
Merge gold bullion 8, auxiliary hard, wear-resistant rod of metal alloy 9, head 8.1, tail portion 8.2, main body 8.3, wedge structure 8.4, empennage 8.5.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Embodiment 1, a kind of entirety provided by the invention consume self-compensating type way-type drilling unit, including fluted drill ontology 1 and shank entirely
2, the spiral helicine cutting back 3 of one group of protrusion, one group or more of sunk helical form chip space are equipped on fluted drill ontology 1
4, the center of the fluted drill ontology 1 and shank 2 is hollow structure 5, mills out multiple groups on cutting back 3 and holds tool bore 6, from chip space
It bores welding hole 7 and is communicated to and hold in tool bore 6, hard, wear-resistant alloy block 8 is installed in each appearance tool bore, copper water is poured by welding hole 7
To tool bore 6 is held, copper water enters hard, wear-resistant alloy block 8 and holds the gap between tool bore 6, by hard, wear-resistant alloy block 8 after cooling
It is fixed on and holds in tool bore 6.
Along the cutting back on fluted drill ontology 1, multiple equally distributed appearance tool bores 6 are successively arranged, so that multiple groups be made to hold
Tool bore 6 is arranged in parallel respectively, is arranged in parallel hard, wear-resistant alloy block 8 on fluted drill ontology.
Referring to attached drawing 2, the main body of hard, wear-resistant alloy block 8 is wedge structure 8.4, and tail portion is equipped with the empennage 8.5 of expansion, main
The wedge structure 8.4 of body is inserted into the appearance tool bore of wedge structure, and the empennage 8.5 of expansion is stuck in the outside of fluted drill ontology, is made
The inner cavity of entire fluted drill ontology and outer wall realize wear-resisting functions;And appearance tool bore can need to be arranged different numbers according to drill bit
Amount.
Wherein, the center of fluted drill ontology 1 is hollow structure, injects flushing fluid along drilling rod by the well head on ground, leads to
Cross the chip space 4 of fluted drill ontology 1 and rock debris be discharged along the cavity between drilling rod and the borehole wall, it is desirable that above mention every time drilling rod it
Before to be injected into well support liquid.
The production method that a kind of entirety that the present invention mentions consumes self-compensating type way-type drilling unit entirely, manufacturing process are as follows:
One, No. 77 round steel for taking 6 meters or 13 meters, are first made annealing treatment, reduce the hardness of material, and 22RC hardness is reduced to, then
It is machined;
Two, hollow structure first is processed at the center of round steel, then carries out shape machining, according to the quantity of chip space, milled out
Spiral helicine chip space, then the appearance tool bore of multiple groups wedge shape, and every group of wedge shape are successively milled out in raised spiral helicine cutting back
The upward center for stretching to fluted drill ontology of appearance tool bore;Again from the spiral helicine multiple welding holes of chip removal traverse drill, each welding hole
Each group is respectively communicated with to hold in tool bore;It is quenched after the completion, so that hardness is reached 60RC or more, then be tempered, made whole
Body structure flexible;
Three, the hard, wear-resistant alloy block of multiple wedge shapes is sequentially inserted into corresponding appearance tool bore, and passes sequentially through each welding hole note
Enter copper water, copper water, which enters, to be held in tool bore, and is entered hard, wear-resistant alloy block and held the gap between tool bore, after cooling that hard is resistance to
Adjustment gold bullion, which is sequentially fixed at, to be held in tool bore.
A kind of entirety that the present invention mentions consumes the application method of self-compensating type way-type drilling unit, including following procedure entirely:
At the well head of ground, whole full consumption self-compensating type way-type drilling unit is fixed on to the end of drilling rod, and in lower going-into-well, in well
Under the drive of the trepan of mouth, drilling rod realizes that rotation drives the whole self-compensating type way-type drilling unit rotation of consumption entirely, and in fluted drill ontology 1
With injection flushing fluid at the hollow structure 5 at the center of shank 2, flushing fluid drives rock debris to be discharged along helical form chip space 4, and
Along returning out ground well head between drilling rod and the borehole wall;
During the drilling of whole full consumption self-compensating type way-type drilling unit, fluted drill ontology 1 is gradually worn out from head, and is welded on
The hard, wear-resistant alloy block 8 of multiple groups wedge shape inside fluted drill ontology 1 starts to provide wear-resisting functions, with continuing to creep into, cuts
Hard, wear-resistant alloy block 8 successively fixed successively provides wear-resisting functions on back 3, realizes continual wear-resisting compensation, in this way, can be with
So that entire 6 meters or 13 meters of drilling tool is depleted to the shank 2 of end always, reintroduces the whole full consumption self-compensating type group that drilling rod more renews
Bench drill tool.
Embodiment 2, a kind of entirety that the present invention mentions consume self-compensating type way-type drilling unit entirely, and difference from Example 1 is:
Hold tool bore 6 be it is columnar structured, referring to attached drawing 2, the main body of hard, wear-resistant alloy block 8 is cylindrical structure, and head 8.1 is
Vertebral body structure, tail portion 8.2 are trapezium structure, and main body and head 8.1 are inserted into columnar structured appearance tool bore, tail portion 8.2
Trapezium structure is stuck in the outside of fluted drill ontology, and the inner cavity of entire fluted drill ontology and outer wall is made all to realize wear-resisting functions.
The production method that a kind of entirety that the present invention mentions consumes self-compensating type way-type drilling unit entirely, manufacturing process are as follows:
One, No. 77 round steel for taking 6 meters or 13 meters, are first made annealing treatment, reduce the hardness of material, and 22RC hardness is reduced to, then
It is machined;
Two, hollow structure first is processed at the center of round steel, then carries out shape machining, according to the quantity of chip space, milled out
Spiral helicine chip space, then the columnar appearance tool bore of multiple groups, and every group of appearance are successively milled out in the spiral helicine cutting back of protrusion
The upward center for stretching to fluted drill ontology of tool bore;Again from the spiral helicine multiple welding holes of chip removal traverse drill, each welding hole difference
Each group is communicated to hold in tool bore;It is quenched after the completion, so that hardness is reached 60RC or more, then be tempered, make whole knot
Structure flexible;
Three, multiple hard, wear-resistant alloy blocks are sequentially inserted into corresponding appearance tool bore, and pass sequentially through each welding hole injection copper water,
Copper water, which enters, to be held in tool bore, and is entered hard, wear-resistant alloy block and held the gap between tool bore, by hard, wear-resistant alloy after cooling
Block, which is sequentially fixed at, to be held in tool bore.
Embodiment 3, a kind of entirety that the present invention mentions consume self-compensating type way-type drilling unit entirely, with Examples 1 and 2 difference
It is:
Welding hole 7 of the invention can have additional screw thread, in this way, can close auxiliary hard, wear-resistant after copper water perfusion
Golden bar 9 is connected in welding hole 7, in this way, can increase by one group of auxiliary hard, wear-resistant rod of metal alloy on welding hole again, and insertion
In fluted drill body interior, to realize auxiliary wear-resisting functions, keep fluted drill ontology more wear-resisting, although increasing certain
Cost, but relative to the cost and risk for once mentioning drilling rod more bit change is reduced, which more reduces whole drilling well
Cost and risk.
The production method that a kind of entirety that the present invention mentions consumes self-compensating type way-type drilling unit entirely, manufacturing process are as follows:
One, No. 77 round steel for taking 6 meters or 13 meters, are first made annealing treatment, reduce the hardness of material, and 22RC hardness is reduced to, then
It is machined;
Two, hollow structure first is processed at the center of round steel, then carries out shape machining, milled out a group or more of concave
The spiral helicine chip space gone forms the spiral helicine cutting back of a group or more of protrusions, then in the spiral helicine of protrusion
Cutting back successively mills out multiple groups and holds tool bore, and the upward center for stretching to fluted drill ontology of every group of appearance tool bore;Again from helical form
The multiple welding holes of chip removal traverse drill, each welding hole is respectively communicated with to one group of appearance tool bore, and screw thread is produced on welding hole;It is complete
It is quenched after, so that hardness is reached 60RC or more, then be tempered, make overall structure flexible;
Three, multiple hard, wear-resistant alloy blocks are sequentially inserted into corresponding appearance tool bore, and pass sequentially through each welding hole injection copper water,
Copper water, which enters, to be held in tool bore, and is entered hard, wear-resistant alloy block and held the gap between tool bore, by hard, wear-resistant alloy after cooling
Block, which is sequentially fixed at, to be held in tool bore;Then auxiliary hard, wear-resistant rod of metal alloy 9 is threadedly attached in welding hole 7, is realized hard
The composite structure of matter wear-resisting alloy block 8 and auxiliary hard, wear-resistant rod of metal alloy 9, improves abrasion resistant effect.
Embodiment 4, the present invention are whole full consumption four spiral way-type drilling unit of self-compensating type, are a difference in that with embodiment 1-3:
Referring to attached drawing 4, fluted drill ontology of the invention can mill out four spiral helicine chip spaces 4, and formation four is spiral helicine
Cutting back 3, then mills out appearance tool bore in each spiral helicine cutting back, and each appearance tool bore is upward to stretch to fluted drill ontology
Center, the fixed upper hard, wear-resistant alloy block of the appearance tool bore installation of four cutting backs, hard, wear-resistant alloy block tiltedly stretch to fiber crops respectively
Flower bores the center of ontology, so that the head of fluted drill ontology is formed hard, wear-resistant alloy superimposed layer, in this way, can make fluted drill ontology
In rotary course, more steadily, abrasion resistant effect is more preferable.
The production method that a kind of entirety that the invention is mentioned consumes self-compensating type way-type drilling unit entirely, manufacturing process are as follows:
One, No. 77 round steel for taking 6 meters or 13 meters, are first made annealing treatment, reduce the hardness of material, and 22RC hardness is reduced to, then
It is machined;
Two, hollow structure first is processed at the center of round steel, then carries out shape machining, mill out four groups of sunk helical forms
Chip space, form the spiral helicine cuttings back of four groups of protrusions, then successively milled out in every raised spiral helicine cutting back
Multiple groups hold tool bore, and the upward center for stretching to fluted drill ontology of every group of appearance tool bore;Again from the spiral helicine multiple welderings of chip removal traverse drill
Hole 7 is connect, each welding hole is respectively communicated with to one group of appearance tool bore;It is quenched after the completion, hardness is made to reach 60RC or more, then
It is tempered, makes overall structure flexible;
Three, multiple hard, wear-resistant alloy blocks 8 are sequentially inserted into the appearance tool bore of corresponding four cuttings back, hard, wear-resistant alloy block
8 tiltedly stretch to the center of fluted drill ontology respectively, so that the head of fluted drill ontology is formed hard, wear-resistant alloy superimposed layer, in this way, can
So that more steadily, abrasion resistant effect is more preferable in fluted drill ontology rotary course;Then, it passes sequentially through each welding hole 7 and injects copper
Water, copper water, which enters, to be held in tool bore, and is entered hard, wear-resistant alloy block and held the gap between tool bore, closes hard, wear-resistant after cooling
Gold bullion, which is sequentially fixed at, to be held in tool bore, and abrasion resistant effect is improved.
Embodiment 5, the present invention are whole full consumption four spiral way-type drilling unit of self-compensating type, and compared with Example 4, structure is:
Referring to attached drawing 4, fluted drill ontology of the invention can mill out four spiral helicine chip spaces 4, and formation four is spiral helicine
Cutting back 3, then mills out appearance tool bore in each spiral helicine cutting back, and each appearance tool bore is upward to stretch to fluted drill ontology
Center, the fixed upper hard, wear-resistant alloy block of the appearance tool bore installation of four cutting backs, hard, wear-resistant alloy block tiltedly stretch to fiber crops respectively
Flower bores the center of ontology, so that the head of fluted drill ontology is formed hard, wear-resistant alloy superimposed layer, in this way, can make fluted drill ontology
In rotary course, more steadily, abrasion resistant effect is more preferable;
In addition, welding hole 7 can have additional screw thread, in this way, can will assist hard, wear-resistant rod of metal alloy after copper water perfusion
9 are connected in welding hole 7, in this way, can increase by one group of auxiliary hard, wear-resistant rod of metal alloy on welding hole again, are also inserted into fiber crops
Flower, which bores body interior, to realize auxiliary wear-resisting functions keeps fluted drill ontology more wear-resisting, although increase it is certain at
This, but once proposes the cost and risk of drilling rod more bit change relative to reducing, the innovation more reduce whole drilling well at
Sheet and risk.
The production method that a kind of entirety that the invention is mentioned consumes self-compensating type way-type drilling unit entirely, manufacturing process are as follows:
One, No. 77 round steel for taking 6 meters or 13 meters, are first made annealing treatment, reduce the hardness of material, and 22RC hardness is reduced to, then
It is machined;
Two, hollow structure first is processed at the center of round steel, then carries out shape machining, mill out four groups of sunk helical forms
Chip space, form the spiral helicine cuttings back of four groups of protrusions, then successively milled out in every raised spiral helicine cutting back
Multiple groups hold tool bore, and the upward center for stretching to fluted drill ontology of every group of appearance tool bore;Again from the spiral helicine multiple welderings of chip removal traverse drill
Hole 7 is connect, each welding hole is respectively communicated with to one group of appearance tool bore, and screw thread is produced on welding hole;It carries out at quenching after the completion
Reason, makes hardness reach 60RC or more, then be tempered, makes overall structure flexible;
Three, multiple hard, wear-resistant alloy blocks 8 are sequentially inserted into the appearance tool bore of corresponding four cuttings back, hard, wear-resistant alloy block
8 tiltedly stretch to the center of fluted drill ontology respectively, so that the head of fluted drill ontology is formed hard, wear-resistant alloy superimposed layer, in this way, can
So that more steadily, abrasion resistant effect is more preferable in fluted drill ontology rotary course;Then, it passes sequentially through each welding hole 7 and injects copper
Water, copper water, which enters, to be held in tool bore, and is entered hard, wear-resistant alloy block and held the gap between tool bore, closes hard, wear-resistant after cooling
Gold bullion, which is sequentially fixed at, to be held in tool bore;Then auxiliary hard, wear-resistant rod of metal alloy 9 is threadedly attached in welding hole 7, is realized
The composite structure of hard, wear-resistant alloy block 8 and auxiliary hard, wear-resistant rod of metal alloy 9, improves abrasion resistant effect.
Multiple embodiments of the invention are utilized respectively No. 77 round steel materials and are fabricated to fluted drill ontology (general No. 77 round steel
Specification be exactly 6 meters or 13 meters, material can not be wasted in this way, be completely used for production drilling tool, yield rate is also high), in fluted drill
Tool bore is held in processing on ontology, hard, wear-resistant alloy block is inserted into fluted drill body interior, and fix by copper water, to realize 6
Hard, wear-resistant alloy block has successively been stuck on rice or 13 meters of the fluted drill whole body, in this way during drilling well, with fluted drill sheet
The attrition of body, intracorporal hard, wear-resistant alloy block then realize wear-resisting functions, can cut with the progress of drilling campaign, side,
Side consumption, hard, wear-resistant alloy block successively supplement, so that changing existing pdc drill bit can only be resistance to equipped with hard in drill tip
Gold bullion is merged, after hard, wear-resistant alloy block is exhausted, drill bit is just needed replacing;The present invention has accomplished entire fluted drill ontology
6 meters or 13 meters can all be crept into as drill bit, in this way, the efficiency of drilling well greatly improved, reduce drilling cost and
Risk.
The above, is only part preferred embodiment of the invention, and anyone skilled in the art may benefit
Equivalent technical solution is modified or is revised as with the technical solution of above-mentioned elaboration.Therefore, technology according to the present invention
Any simple modification or substitute equivalents that scheme is carried out, belong to the greatest extent the scope of protection of present invention.