CN203515331U - PDC (polycrystalline diamond compact) drill bit with special gauge protection - Google Patents

PDC (polycrystalline diamond compact) drill bit with special gauge protection Download PDF

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Publication number
CN203515331U
CN203515331U CN201320670208.5U CN201320670208U CN203515331U CN 203515331 U CN203515331 U CN 203515331U CN 201320670208 U CN201320670208 U CN 201320670208U CN 203515331 U CN203515331 U CN 203515331U
Authority
CN
China
Prior art keywords
drill bit
pdc
bit
bit matrix
pdc drill
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
CN201320670208.5U
Other languages
Chinese (zh)
Inventor
王书桂
任志坤
王福强
王亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hebei Sharp Stone Drill Bit Manufacturing Co Ltd
Original Assignee
Hebei Sharp Stone Drill Bit Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hebei Sharp Stone Drill Bit Manufacturing Co Ltd filed Critical Hebei Sharp Stone Drill Bit Manufacturing Co Ltd
Priority to CN201320670208.5U priority Critical patent/CN203515331U/en
Application granted granted Critical
Publication of CN203515331U publication Critical patent/CN203515331U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a PDC (polycrystalline diamond compact) drill bit with special gauge protection. The PDC drill bit is characterized in that the edge of the outermost side of perpendicular projection of each main cutter wing exceeds the outermost peripheral side of a drill bit matrix and is radially and outwardly protruded, PDC cutting teeth arranged on each main cutter wing radially extend towards the central axis of the drill bit matrix at certain curvature radiuses, and the curvature radiuses corresponding to the PDC cutting teeth arranged on each main cutter wing are sequentially increased along the anticlockwise direction of the central axis of the drill bit matrix. The PDC drill bit has the advantages that the PDC drill bit is simple in structure and reasonable in design, is provided with the inwardly concave cutter wings, so that rock debris can be advantageously quickly separated from the PDC drill bit, the PDC drill bit is rotation-resistant, the drilling speed can be increased, and the construction stability can be improved; the PDC drill bit is provided with gauge protection teeth with composite plates, and accordingly the impact resistance of the PDC drill bit can be improved; as the composite plates are high in abrasive ratio performance, the gauge protection abrasion of the PDC drill bit can be effectively suppressed when the drill bit is used for cutting pointing well walls generated by strata, and a gauge protection effect can be improved.

Description

A kind of PDC drill bit of special gauge
Technical field
The utility model relates to the technical field of PDC drill bit, especially a kind of PDC drill bit of special gauge.
Background technology
In known technical field, PDC drill bit Shi Wei China National Petroleum Corporation (CNPC), China PetroChemical Corporation, Chinese Sea Petroleum Group company carry out the important tool of oil drilling in land and ocean.Be the last century Mo high-tech product introduced of China, in the drilling well of homogeneous soft-medium hard formation, use to have that speed is fast, the life-span long, an advantage such as at the bottom of unit drilling depth cost.Domestic PDC drill produced enterprise has grasped design and fabrication technology substantially, but because scientific research drops into far away from offshore company, that develops new product is limited in one's ability, from reliability, compliance or all have larger gap with advanced international standard drilling well performance.
At present PDC drill bit creep into plasticity higher or during expansive medium ground, the external diameter of drill bit very easily weares and teares, and causes drill bit undergauge then to scrap and can not continue to creep into, and has a strong impact on the progress of engineering, increases the cost of engineering.
Utility model content
The technical problems to be solved in the utility model is: overcome the problems referred to above, a kind of PDC drill bit of special gauge is provided.
The utility model solves the technical scheme that its technical problem adopts: a kind of PDC drill bit of special gauge, comprise drill-bit installing seat and bit matrix, on the canopy of described bit matrix, rotation is distributed with many operator wings, on every operator wing, be equipped with two row PDC cutting teeths, on described bit matrix, be inlaid with a plurality of nozzles, the outermost edges of projection in vertical direction of every operator wing all exceeds the external diameter of bit matrix and is radially outwardly convex shape, and the PDC cutting teeth of arranging on the wing every operator diametrically all with certain curvature partly radially the extension of the central axis of bit matrix come, the corresponding radius of curvature of PDC cutting teeth of simultaneously arranging on every operator wing increases successively along the counter clockwise direction of the central axis of bit matrix, on the front end of every operator wing, the lower position of the canopy of bit matrix is equipped with composite sheet gauge teeth.
Further, as a kind of concrete embodiment, the quantity of the wing of operating described in the utility model is 5.
Further, as a kind of concrete embodiment, the diameter of the gauge teeth of composite sheet described in the utility model is 19mm.
The beneficial effects of the utility model are: the utility model is simple in structure, reasonable in design, adopt profile to be the wing of inner concave shape, be conducive to the quick disengaging of landwaste, possess anti-turning ability, improve drilling speed, increase the stability of construction, adopt composite sheet gauge teeth simultaneously, strengthen its impact resistance, because the wear resistance ratio performance of composite sheet is high, the cutting of the sensing borehole wall that drill bit produces on cutting stratum, gauge wearing and tearing are effectively suppressed, thereby play the effect of strengthening gauge.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is sectional view of the present utility model;
Fig. 2 is the top view of the canopy of bit matrix of the present utility model;
In figure: 1. drill-bit installing seat, 2. bit matrix, the 3. operator wing, 4.PDC cutting teeth, 5. nozzle, 6. composite sheet gauge teeth.
The specific embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model is only described in a schematic way, so it only show the formation relevant with the utility model.
The preferred embodiment of the PDC drill bit of a kind of special gauge of the utility model as depicted in figs. 1 and 2, comprise drill-bit installing seat 1 and bit matrix 2, on the canopy of described bit matrix 2, rotation is distributed with many operator wings 3, on every operator wing 3, be equipped with two row PDC cutting teeths 4, on described bit matrix 2, be inlaid with a plurality of nozzles 5, the outermost edges of projection in vertical direction of every operator wing 3 all exceeds the external diameter of bit matrix 2 and is radially outwardly convex shape, and the PDC cutting teeth 4 of arranging on every operator wing 3 diametrically all with certain curvature partly radially the extension of the central axis of bit matrix 2 come, the corresponding radius of curvature of PDC cutting teeth 4 of simultaneously arranging on every operator wing 3 increases successively along the counter clockwise direction of the central axis of bit matrix 2, on the front end of every operator wing 3, the lower position of the canopy of bit matrix 2 is equipped with composite sheet gauge teeth 6.
The quantity of the described operator wing 3 is 5.
The diameter of described composite sheet gauge teeth 6 is 19mm.
The utility model is simple in structure, reasonable in design, adopts profile to be the wing of inner concave shape, be conducive to the quick disengaging of landwaste, possess anti-turning ability, improve drilling speed, increase the stability of construction, adopt composite sheet gauge teeth simultaneously, strengthen its impact resistance, because the wear resistance ratio performance of composite sheet is high, the cutting of the sensing borehole wall that drill bit produces on cutting stratum, gauge wearing and tearing are effectively suppressed, thereby play the effect of strengthening gauge.
The above-mentioned foundation desirable embodiment of the present utility model of take is enlightenment, and by above-mentioned description, relevant staff can, within not departing from the scope of this utility model technological thought, carry out various change and modification completely.The technical scope of this utility model is not limited to the content on manual, must determine its technical scope according to claim scope.

Claims (3)

1. the PDC drill bit of a special gauge, comprise drill-bit installing seat (1) and bit matrix (2), on the canopy of described bit matrix (2), rotation is distributed with many operator wings (3), on every operator wing (3), be equipped with two row PDC cutting teeths (4), on described bit matrix (2), be inlaid with a plurality of nozzles (5), it is characterized in that: the outermost edges of projection in vertical direction of every operator wing (3) all exceeds the external diameter of bit matrix (2) and is radially outwardly convex shape, and the upper PDC cutting teeth (4) of arranging of every operator wing (3) diametrically all with certain curvature partly radially the central axis of bit matrix (2) extend and come, the upper corresponding radius of curvature of PDC cutting teeth (4) of arranging of every operator wing (3) increases successively along the counter clockwise direction of the central axis of bit matrix (2) simultaneously, on the front end of every operator wing (3), the lower position of the canopy of bit matrix (2) is equipped with composite sheet gauge teeth (6).
2. the PDC drill bit of a kind of special gauge as claimed in claim 1, is characterized in that: the quantity of the described operator wing (3) is 5.
3. the PDC drill bit of a kind of special gauge as claimed in claim 1, is characterized in that: the diameter of described composite sheet gauge teeth (6) is 19mm.
CN201320670208.5U 2013-10-24 2013-10-24 PDC (polycrystalline diamond compact) drill bit with special gauge protection Expired - Fee Related CN203515331U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320670208.5U CN203515331U (en) 2013-10-24 2013-10-24 PDC (polycrystalline diamond compact) drill bit with special gauge protection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320670208.5U CN203515331U (en) 2013-10-24 2013-10-24 PDC (polycrystalline diamond compact) drill bit with special gauge protection

Publications (1)

Publication Number Publication Date
CN203515331U true CN203515331U (en) 2014-04-02

Family

ID=50374278

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320670208.5U Expired - Fee Related CN203515331U (en) 2013-10-24 2013-10-24 PDC (polycrystalline diamond compact) drill bit with special gauge protection

Country Status (1)

Country Link
CN (1) CN203515331U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104196458A (en) * 2014-08-26 2014-12-10 莱州市原野科技有限公司 Sharp-tooth PDC drill bit
CN104747090A (en) * 2015-01-23 2015-07-01 中国石油天然气集团公司 Inner spiral blade PDC drill bit with inner chip removal function
CN105113993A (en) * 2015-08-20 2015-12-02 郑州神利达钻采设备有限公司 Rotary bit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104196458A (en) * 2014-08-26 2014-12-10 莱州市原野科技有限公司 Sharp-tooth PDC drill bit
CN104747090A (en) * 2015-01-23 2015-07-01 中国石油天然气集团公司 Inner spiral blade PDC drill bit with inner chip removal function
CN105113993A (en) * 2015-08-20 2015-12-02 郑州神利达钻采设备有限公司 Rotary bit

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

Granted publication date: 20140402

Termination date: 20151024

EXPY Termination of patent right or utility model