CN204266929U - A kind of diamond bit with gauge structure - Google Patents

A kind of diamond bit with gauge structure Download PDF

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Publication number
CN204266929U
CN204266929U CN201420707592.6U CN201420707592U CN204266929U CN 204266929 U CN204266929 U CN 204266929U CN 201420707592 U CN201420707592 U CN 201420707592U CN 204266929 U CN204266929 U CN 204266929U
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China
Prior art keywords
gauge
bit
wing
independent
block
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CN201420707592.6U
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Chinese (zh)
Inventor
杨迎新
戚清亮
李皋
郭鹏
任海涛
陈炼
牛世伟
张春亮
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Southwest Petroleum University
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Southwest Petroleum University
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Priority to CN201420707592.6U priority Critical patent/CN204266929U/en
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Abstract

The utility model discloses a kind of diamond bit with gauge structure, belong to the drilling equipment such as petroleum gas, mining geology technical field, include bit body, bit body is provided with hydraulic structure, wing structure and gauge structure, wing structure is provided with cutting teeth, described gauge structure comprises to be located on described bit body, the independently gauge block be separated with described wing structure, described bit body is at least provided with a described independent gauge block.Bit gauge protection structure described in the utility model by the restriction of wing structure, can not greatly reduce the frictional resistance between drill bit and the borehole wall, drill bit be had and better creeps into characteristic; The drill bit bit freezing because the junks such as well wall dropping block cause, bit bouncing phenomenon can well be reduced or avoid simultaneously to occur, improve drilling safety and the drilling efficiency of drill bit.

Description

A kind of diamond bit with gauge structure
Technical field
The utility model belongs to the drilling equipment such as petroleum gas, mining geology technical field, relates to a kind of diamond bit concretely.
Background technology
In existing diamond bit product, the gauge structure of drill bit is all connected as a single entity with drill bit wing usually, and be positioned at the end of drill bit wing, its number is identical with drill bit wing number.Stability and the bit gauge protection block length of diamond bit have direct relation.Gauge block length is longer, and the contact-segment of itself and the borehole wall is longer, and " righting " effect of drill bit is more remarkable, and the job stability of drill bit is better.But gauge block length is long, between itself and the borehole wall, the introducing of frictional resistance is larger, all can have a negative impact to the torque responsive of drillng operation and the utilization rate etc. of drilling well energy.
Because gauge structure is usual and drill bit wing is connected as a single entity, and quantity equals wing number, owing to being subject to bit wing wing structure and number quantitative limitation, the runner of adjacent gauge interblock is general wider, when have larger sillar or other junks drop shaft bottom time, be often gathered in the runner of gauge interblock, gauge block does not often possess the ability of initiatively fractured rock, larger sillar that cannot be broken will cause the chip removal of drill bit not smooth, the even generation of the accident such as bit freezing, bit bouncing.
Utility model content
The purpose of this utility model is: for above-mentioned the deficiencies in the prior art, and provide a kind of diamond bit with gauge structure, it can reduce the frictional resistance between drill bit and the borehole wall, improves bit operation performance, and can reduce or avoid the phenomenon such as bit freezing, bit bouncing.
The purpose of this utility model is realized by following technical proposals:
A kind of diamond bit with gauge structure, include bit body, bit body is provided with hydraulic structure, wing structure and gauge structure, wing structure is provided with cutting teeth, described gauge structure comprises to be located on described bit body, the independently gauge block be separated with described wing structure, described bit body is at least provided with a described independent gauge block.
As selection 1, described independent gauge block number is not less than wing structure number.
As selection 2, the cross section of described independent gauge block is circular, or the cross-sectional profiles line of described independent gauge block is connected and composed by least three line segments, and each line segment is that straightway or curved section are formed separately.As further selection, the cross section of described independent gauge block is irregular polygon, or the cross-sectional profiles line of described gauge block is connected and composed by a circular arc line segment and two straightways.
As selection 3, described gauge structure also comprises the gage portion be connected with described wing structural integrity.
As the further selection 4 of selection 3, the gage portion that described and described wing structural integrity is connected is provided with cutting teeth.
As selection 5, described independent gauge block is provided with cutting teeth.
As the further selection 6 of selection 5, the described cutting teeth on described independent gauge block be selected from diamond tooth, hard-metal insert, impregnated with diamond composite teeth one or more.
As selection 7, described each independent gauge block is in the first-class pitch arrangement of bit body same axis height.Or described independent gauge block is axially dislocatedly distributed up and down at bit body.
As selection 8, described independent gauge block is interspersed with described wing structure in bit body circumference.
The main scheme of aforementioned the utility model and each further selection scheme thereof can independent assortment to form multiple scheme; be the utility model can adopt and claimed scheme: as the utility model; each selection can select any combination with other; those skilled in the art can understand there is multiple combination according to prior art and common practise after understanding the present invention program, do not do exhaustive at this.
Independent gauge structure is not by the restriction of wing structure, and it is separated with wing structure and independently, designs accessible beneficial effect comprise by rational gauge structure:
1, compared with normal drill bit, the independent gauge structure of the application is separated with wing structure, when not shortening (even can extend) bit gauge protection length (span), decrease the contact length between bit gauge protection structure and the borehole wall and area, reduce the frictional resistance between bit gauge protection structure and the borehole wall, reduce drill bit torque responsive while, enhance the righting effect of drill bit.Therefore, the independent gauge structure that the application adopts can reduce the torque loads of drill bit and drill string, strengthens bit operation stability, extends the application life of drill bit and drill string.
2, the independent gauge structure of the application is separated with wing structure and independence, independent gauge structure energy flexible design is arranged, it can reduce the runner gap of bit gauge protection structure, reduces or the transition region of avoiding the matter fallings such as larger sillar to drop down onto wing water channel and the borehole wall and shaft bottom causes drill bit bit freezing, bit bouncing phenomenon occurs.Meanwhile, the independent gauge block of the application can be arranged the cutting teeth of initiatively plow, it can the initiatively larger sillar of fragmentation, reduces drill bit bit freezing, bit bouncing, improves drilling safety and the drilling efficiency of drill bit.
3, the independent gauge structure of the application is separated with wing structure and independence, and the shape of independent gauge structure and quantity is not all by the restriction of wing structure.Independent gauge structure and wing structure (circumference) interlaced arrangement, or independent gauge structure quantity more than wing number time, comparatively normal drill bit is obviously many for the contact point of the application and the borehole wall, and it can significantly improve the job stability of drill bit.
Accompanying drawing explanation
Fig. 1 is the stereogram of this patent first embodiment.
Fig. 2 is the cross-sectional profiles line schematic diagram of gauge block in this patent first embodiment.
Fig. 3 is the gauge block end view of this patent first embodiment.
Fig. 4 is the circumferentially deploying figure of gauge structure in this patent first embodiment.
Fig. 5 is the cross-sectional profiles line schematic diagram of gauge block in this patent second embodiment.
Fig. 6 is the gauge block end view of this patent second embodiment.
Fig. 7 is the cross-sectional profiles line schematic diagram of gauge block in this patent the 3rd embodiment.
Fig. 8 is the gauge block end view of this patent the 3rd embodiment.
Fig. 9 is the cross-sectional profiles line schematic diagram of gauge block in this patent the 4th embodiment.
Figure 10 is the gauge block end view of this patent the 4th embodiment.
Figure 11 is the circumferentially deploying figure of gauge structure in this patent the 4th embodiment.
In figure, wherein: 1, bit body; 2, wing structure; 3, gauge block; 4, hard-metal insert; 5, PDC tooth; 31, gauge block cross-sectional profiles line.
Detailed description of the invention
Below in conjunction with specific embodiments and the drawings, the utility model is further described.
Embodiment 1:
As shown in Figures 1 to 4, a kind of diamond bit with gauge structure, comprise bit body 1, bit body 1 is provided with hydraulic structure, wing structure 2 and gauge structure, wing structure 2 is provided with cutting teeth, gauge structure comprises to be located on bit body 1, the independently gauge block 3 be separated with wing structure 2, bit body is at least provided with this independently gauge block 3.Select further, gauge structure can also comprise the gage portion be connected with wing structure 2 one, gage portion also can be selected be provided with cutting teeth (as shown in Figure 1, this gage portion and cutting teeth thereof can be the part that wing structure 2 extends).As shown in Fig. 1,4, the number of independent gauge block 3 is not less than the number of wing structure 2, the cross-sectional profiles line 31 of independent gauge block 3 can be circular (as Fig. 1-4), being arranged on cutting teeth 4 fixing on independent gauge block 3 can be hard-metal insert, PDC tooth etc., and independent gauge block 3 is arranged in the same axial level of bit body 1.
Embodiment 2:
As shown in Figure 5, Figure 6, the present embodiment is substantially the same manner as Example 1, its difference is: the cross-sectional profiles line 31 of independent gauge block 3 is connected and composed by least three straightways and (or) curved section, as shown in this embodiment for be formed by connecting by three straightways, independent gauge block 3 is fixed with hard-metal insert 4 and PDC tooth 5.
Embodiment 3:
As shown in Figure 7, Figure 8, the present embodiment is substantially the same manner as Example 2, and its difference is: the cross-sectional profiles line 31 of independent gauge block 3 is an arc section and two straightway compositions, and the angle α of its adjacent two straightways is not more than 90 °.
Embodiment 4:
As shown in Figures 9 to 11, the present embodiment is substantially the same manner as Example 2, its difference is: the cross-sectional profiles line 31 of independent gauge block 3 is irregular polygon, and independent gauge block 3 keeps at a certain distance away in the circumference of bit body 1, and is staggered unequal axial height arrangement.
Embodiment 5:
The present embodiment is substantially identical with embodiment 1,2 or 3, and its difference is: gauge block 3 number equals wing structure 2 number, and gauge block 3 is interspersed with wing structure 2 in bit body 1 circumference.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.

Claims (10)

1. one kind has the diamond bit of gauge structure, include bit body, bit body is provided with hydraulic structure, wing structure and gauge structure, wing structure is provided with cutting teeth, it is characterized in that: described gauge structure comprises to be located on described bit body, the independently gauge block be separated with described wing structure, described bit body is at least provided with a described independent gauge block.
2. there is the diamond bit of gauge structure as claimed in claim 1, it is characterized in that: described independent gauge block number is not less than wing structure number.
3. have the diamond bit of gauge structure as claimed in claim 1 or 2, it is characterized in that: the cross-sectional profiles line of described independent gauge block is connected and composed by least three line segments, each line segment is that straightway or curved section are formed separately; Or the cross section of described independent gauge block is circular.
4. there is the diamond bit of gauge structure as claimed in claim 3, it is characterized in that: the cross section of described independent gauge block is irregular polygon; Or the cross-sectional profiles line of described independent gauge block is connected and composed by a circular arc line segment and two straightways.
5. there is the diamond bit of gauge structure as claimed in claim 1 or 2, it is characterized in that: described gauge structure also comprises the gage portion be connected with described wing structural integrity.
6. there is the diamond bit of gauge structure as claimed in claim 5, it is characterized in that: the gage portion that described and described wing structural integrity is connected is provided with cutting teeth.
7. there is the diamond bit of gauge structure as claimed in claim 1 or 2, it is characterized in that: described independent gauge block is provided with cutting teeth.
8. there is the diamond bit of gauge structure as claimed in claim 1 or 2, it is characterized in that: described each independent gauge block is in the first-class pitch arrangement of bit body same axis height.
9. there is the diamond bit of gauge structure as claimed in claim 1 or 2, it is characterized in that: described independent gauge block is axially dislocatedly distributed up and down at bit body.
10. there is the diamond bit of gauge structure as claimed in claim 1 or 2, it is characterized in that: described gauge block is interspersed with described wing structure in bit body circumference.
CN201420707592.6U 2014-11-21 2014-11-21 A kind of diamond bit with gauge structure Active CN204266929U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420707592.6U CN204266929U (en) 2014-11-21 2014-11-21 A kind of diamond bit with gauge structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420707592.6U CN204266929U (en) 2014-11-21 2014-11-21 A kind of diamond bit with gauge structure

Publications (1)

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CN204266929U true CN204266929U (en) 2015-04-15

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107939298A (en) * 2018-01-09 2018-04-20 西南石油大学 Can detachable type PDC drill bit
CN106522845B (en) * 2016-11-23 2018-04-20 青岛石大华通科技有限公司 A kind of gauge device for geological drilling
CN107975343A (en) * 2018-01-09 2018-05-01 西南石油大学 Can detachable type PDC re-drill bits

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106522845B (en) * 2016-11-23 2018-04-20 青岛石大华通科技有限公司 A kind of gauge device for geological drilling
CN107939298A (en) * 2018-01-09 2018-04-20 西南石油大学 Can detachable type PDC drill bit
CN107975343A (en) * 2018-01-09 2018-05-01 西南石油大学 Can detachable type PDC re-drill bits

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