CN204024482U - A kind of combined type PDC drill bit - Google Patents

A kind of combined type PDC drill bit Download PDF

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Publication number
CN204024482U
CN204024482U CN201420487875.4U CN201420487875U CN204024482U CN 204024482 U CN204024482 U CN 204024482U CN 201420487875 U CN201420487875 U CN 201420487875U CN 204024482 U CN204024482 U CN 204024482U
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China
Prior art keywords
wing
drill bit
pdc
composite sheet
operator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420487875.4U
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Chinese (zh)
Inventor
邓涛
刘明
张路林
王德斌
王永清
张小颜
肖玮
张丽薇
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邓涛
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Priority to CN201420487875.4U priority Critical patent/CN204024482U/en
Application granted granted Critical
Publication of CN204024482U publication Critical patent/CN204024482U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a kind of PDC drill bit, particularly relates to a kind of combined type PDC drill bit, comprises bit matrix, wing, PDC composite sheet, TSP cutting teeth.Described wing comprises the operator wing and secondary wing, and the described operator wing has four, and the described operator wing is L-shaped, described TSP cutting teeth is impregnated on the described operator wing, described TSP cutting teeth is positioned at PDC composite sheet rear end, and described secondary wing has four, and described secondary wing is in " D " shape.The utility model also comprises nozzle, chip area and gauge teeth, and described nozzle is distributed in described wing both sides, and described gauge teeth is impregnated in described bit matrix side.The utility model is reasonable in design, and described TSP cutting teeth and PDC composite sheet cooperatively interact, support, and adds PDC drill bit overall wear resistance, greatly alleviates chip removal resistance, greatly improve the stability of PDC drill bit.

Description

A kind of combined type PDC drill bit
Technical field
The utility model relates to a kind of PDC drill bit, particularly relates to a kind of combined type PDC drill bit.
Background technology
Because PDC drill bit has the features such as efficiency is high, the life-span is long, so be widely used in drilling industry, the production drilling etc. of such as petroleum gas.As time goes on, people stride forward to the region that geology is more complicated gradually, and the stratum found out containing the energy is developed, to meet the energy demand that the mankind increase day by day.In the face of complicated earth formation, common drill bit is difficult to the depth of stratum reaching anticipation at all.Under these circumstances, the performance requirement for PDC drill bit is just more and more higher.Current PDC drill bit mainly contains free style cloth tooth and two kinds, wing formula cloth tooth, but the stratum that two kinds of PDC drill bits are applicable to is partially soft, for creeping into work compared with hard formation, drill bit damage is serious, need often to change, have impact on programming, also considerably increase the cost of winning of product simultaneously.For most drill bit, in order to increase the intensity of PDC drill bit, normally increase wing quantity, but this change produces thereupon is that drilling depth diminishes, chip removal ability is deteriorated, and mud drum phenomenon is serious; Also having is exactly adopt more wear-resisting natural diamond to be material, improves the performance of drill bit, although this method makes the performance of drill bit improve a lot, expense is but very high, adds cost of winning equally.
In sum, develop a kind of economy, new drill of good performance is the equipment that probing industry is badly in need of.
Summary of the invention
The technical problems to be solved in the utility model how to overcome the deficiencies in the prior art, a kind of combined type PDC drill bit is provided, the utility model is applicable to the complicated landform that soft or hard is mingled with, intensity is large, can fast drilling, chip removal is abundant fast, avoids mud drum phenomenon, significantly can improve the reliability of PDC drill bit, reduce cost of winning.
Technical solution of the present utility model is: a kind of combined type PDC drill bit, comprise bit matrix, wing, PDC composite sheet, TSP cutting teeth, described wing comprises the operator wing and secondary wing, the described operator wing is four, the described operator wing is L-shaped, described PDC composite sheet is installed on the described operator wing, described TSP cutting teeth is impregnated on the described operator wing, described TSP cutting teeth is positioned at described PDC composite sheet rear end, described secondary wing has four, described secondary wing is in " D " shape, and described secondary wing is provided with described PDC composite sheet.
Further, the described operator wing and secondary wing are uniformly distributed on described bit matrix.
Further, the described PDC composite sheet angle that becomes to preset with described bit matrix axes normal face.
Further, described TSP cutting teeth is lower than described PDC composite sheet 0 ~ 2 millimeter.
Further, a kind of combined type PDC drill bit of the present invention also comprises nozzle, chip area and gauge teeth, and described nozzle is distributed in described wing both sides, and described gauge teeth is impregnated in described bit matrix side.
Further, be provided with cavity in described bit matrix, described cavity communicates with described nozzle.
The utility model has the advantage of the distribution of described PDC composite sheet rationally, occupy little space.Described TSP cutting teeth and described PDC composite sheet cooperatively interact, support, and add the overall wear resistance energy of PDC drill bit, greatly alleviate chip removal resistance simultaneously, decrease the generation of mud drum phenomenon.Of the present utility model being also advantageous in that can tackle complicated geological structure, significantly improves the efficiency in drilling well work.Of the present utility modelly be also advantageous in that blade contour is reasonable in design, quantity is moderate, greatly improves the stability of drill bit.
Accompanying drawing explanation
Fig. 1 the utility model bit matrix structural representation.
Fig. 2 the utility model overall structure schematic diagram.
Detailed description of the invention
A kind of combined type PDC drill bit, as shown in Figure 1: comprise bit matrix 1, wing 2, PDC composite sheet 3, TSP cutting teeth 4.Described wing also comprises the operator wing 201 and secondary wing 202, and for making rationally distributedly to be convenient to chip removal, the described operator wing 201 has four, and the described operator wing 201 is L-shaped, adds shock resistance.The described operator wing is provided with a row PDC composite sheet and a row TSP cutting teeth, and described TSP cutting teeth is impregnated on the described operator wing.Described TSP cutting teeth is positioned at PDC composite blade rear end, described secondary wing 202 has four, described secondary wing 202 is in " D " shape, described secondary wing 202 is provided with a row PDC composite sheet, add the torsional property of wing, ensure that the operator wing 201 and secondary wing 202 cooperatively interact work, also play certain supporting role.Described wing 2 is uniformly distributed on described bit matrix 1.The angle that described PDC composite sheet 3 becomes to preset with described bit matrix 1 axes normal face, more effectively carries out fragmentation to rock stratum.TSP cutting teeth 4 on the described operator wing 201 is the distance of 1 millimeter lower than described PDC compound 3, ensures that TSP cutting teeth plays performance.The utility model also comprises nozzle 5, chip area 6 and gauge teeth 7, described nozzle 5 is distributed in described wing 2 both sides, described gauge teeth 7 is impregnated in described bit matrix 1 side, cavity is provided with in described bit matrix 1, and communicate with described nozzle 5, the water under high pressure that nozzle 5 sprays can clear up landwaste in time, and gauge teeth 7 ensures that drill bit is more wear-resisting.
During utility model works, along with the rotation of bit matrix 1, PDC composite sheet 3 plays a role at inclined soft formation, and when running into inclined hard formation, certain wearing and tearing occur PDC composite sheet 3.Now, TSP cutting teeth 4 exposes, and starts to carry out fragmentation to inclined hard formation.Nozzle 5 constantly sprays water under high pressure, is discharged by landwaste in time along chip area 6.Gauge teeth 7 plays gauge effect in rotary course, due to the combination of PDC composite sheet 3 and TSP cutting teeth 4, thus the earth formation high speed ensureing can be mingled with in soft or hard, carries out drilling well work continuously.

Claims (6)

1. a combined type PDC drill bit, comprise bit matrix, wing, PDC composite sheet, TSP cutting teeth, it is characterized in that: described wing comprises the operator wing and secondary wing, the described operator wing is four, the described operator wing is L-shaped, described PDC composite sheet is installed on the described operator wing, described TSP cutting teeth is impregnated on the described operator wing, described TSP cutting teeth is positioned at described PDC composite sheet rear end, described secondary wing has four, described secondary wing is in " D " shape, and described secondary wing is provided with described PDC composite sheet.
2. a kind of combined type PDC drill bit according to claim 1, is characterized in that: the described operator wing and secondary wing are uniformly distributed on described bit matrix.
3. a kind of combined type PDC drill bit according to claim 1, is characterized in that: the angle that described PDC composite sheet becomes to preset with described bit matrix axes normal face.
4. a kind of combined type PDC drill bit according to claim 1, is characterized in that: described TSP cutting teeth is lower than described PDC composite sheet 0 ~ 2 millimeter.
5. a kind of combined type PDC drill bit according to claim 1, is characterized in that: also comprise nozzle, chip area and gauge teeth, and described nozzle is distributed in described wing both sides, and described gauge teeth is impregnated in described bit matrix side.
6. a kind of combined type PDC drill bit according to claim 1, it is characterized in that: be provided with cavity in described bit matrix, described cavity communicates with described nozzle.
CN201420487875.4U 2014-08-27 2014-08-27 A kind of combined type PDC drill bit Expired - Fee Related CN204024482U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420487875.4U CN204024482U (en) 2014-08-27 2014-08-27 A kind of combined type PDC drill bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420487875.4U CN204024482U (en) 2014-08-27 2014-08-27 A kind of combined type PDC drill bit

Publications (1)

Publication Number Publication Date
CN204024482U true CN204024482U (en) 2014-12-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420487875.4U Expired - Fee Related CN204024482U (en) 2014-08-27 2014-08-27 A kind of combined type PDC drill bit

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106320990A (en) * 2015-06-18 2017-01-11 成都百施特金刚石钻头有限公司 Diamond drill bit applied to shale gas well drilling
CN110761712A (en) * 2019-10-12 2020-02-07 中国海洋石油集团有限公司 Deflecting drill bit for improving deflecting performance of flexible drilling tool

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106320990A (en) * 2015-06-18 2017-01-11 成都百施特金刚石钻头有限公司 Diamond drill bit applied to shale gas well drilling
CN110761712A (en) * 2019-10-12 2020-02-07 中国海洋石油集团有限公司 Deflecting drill bit for improving deflecting performance of flexible drilling tool

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C14 Grant of patent or utility model
GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141217

Termination date: 20150827