CN203420640U - Primary domain controller (PDC) drill with stretched nozzle - Google Patents

Primary domain controller (PDC) drill with stretched nozzle Download PDF

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Publication number
CN203420640U
CN203420640U CN201320570234.0U CN201320570234U CN203420640U CN 203420640 U CN203420640 U CN 203420640U CN 201320570234 U CN201320570234 U CN 201320570234U CN 203420640 U CN203420640 U CN 203420640U
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CN
China
Prior art keywords
type nozzle
extended type
drill bit
pdc drill
nozzle
Prior art date
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Active
Application number
CN201320570234.0U
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Chinese (zh)
Inventor
程青
高学之
吴昌顺
吴宝龙
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.)
LANGFANG DINGXIN LIANTUO INDUSTRY TRADE Co Ltd
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LANGFANG DINGXIN LIANTUO INDUSTRY TRADE Co Ltd
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Priority to CN201320570234.0U priority Critical patent/CN203420640U/en
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Abstract

The utility model relates to a primary domain controller (PDC) drill with a stretched nozzle. The PDC drill with the stretched nozzle comprises a drill base body, a long blade, a short blade, blades, a water injection pipe and a stretched nozzle, wherein the drill base body is provided with the long blade and the short blade, the blades are arranged on the long blade and the short blade, the water injection pipe is arranged on the drill base body, and the stretched nozzle is arranged in the water injection pipe. Compared with the prior art, the PDC drill with the stretched nozzle has the beneficial effects that the PDC drill with the stretched nozzle effectively reduces the distance of the stretched nozzle and the bottom portion of a borehole by adopting the stretched nozzle, enhances washing strength of the bottom portion of the borehole, effectively reduces drill balling, increases drilling speed simultaneously, is safe and reliable, can be widely suitable for development of oil drilling and geological drilling, and has promotional value.

Description

A kind of PDC drill bit with extended type nozzle
Technical field
The utility model belongs to oil, the hydrology, colliery, mine, geological drilling drill bit, is specifically related to a kind of PDC drill bit with extended type nozzle.
Background technology
PDC drill bit is to be embedded in man-made polycrystalline stone cutting blocks a kind of chipping type bit that bit matrix forms.It using sharp, high abrasion, can be from sharp Diamond Cutting piece as cutting element, thereby can under low the pressure of the drill, obtain high drilling depth and high drilling speed.Described PDC drill bit has higher safety, can greatly improve drilling well operating efficiency and reduce drilling cost.Particularly in expensive marine drilling and in ultradeep well and slimhole drilling, PDC drill bit has more the incomparable advantage of rock bit.
PDC drill bit is the special-purpose drilling bit that substitutes old-fashioned rock bit of current oil gas field, and it has the features such as high-wearing feature, high impact-resistant, anti-oblique, anti-mud drum, high rotating speed, and is described as " three height " product of high-tech, high investment, high production.In drilling process, PDC drill bit has high drilling speed, low the pressure of the drill, the contour performance advantage of high drilling depth, and it can reduce the cost of winning in oil field greatly in the application of drilling process, accelerates exploitation rate, improves the economic benefit in oil field.PDC drill quality is guarantee the use of PDC drill bit basic, and structure, material and the manufacture craft of PDC drill quality and drill bit self have very important relation, existing a lot of PDC drill bit is because of himself material and the factor such as structure, mostly can only be for soft shale stratum, reason is that hard interlayer can damage drill bit, makes the application of PDC drill bit be subject to obstruction.
Application number is that 201010509559.9 Chinese patent application file discloses a kind of PDC drill bit, comprise bit matrix, wear-resistant coating and diamond compact, described bit matrix is provided with an installation end and and pierces end, described wear-resistant coating pierces the surface of end and is provided with the some sheet rotary wings that protrude out bit matrix described in being located at, the thickness of this wear-resistant coating is 0.2mm to 5mm and is comprised of diamond and antifriction alloy, on the fixing described sheet rotary wings of described diamond compact.
Application number is that 200520133798.3 Chinese patent document discloses a kind of PDC combined drill, its upper end of joint is connected with outer PDC drill bit steel core, interior PDC drill bit steel core is fixedly connected with outer PDC drill bit, by the difference in height of inside and outside PDC drill bit, outer PDC drill bit rock cutting first while creeping into, make a rock core post of inner formation, then cut by interior PDC drill bit, thereby improve rate of penetration.
The above-mentioned PDC drill bit scope of application is limited, produce while using mud drum is many, poor practicability, and a kind of PDC drill bit with extended type nozzle of the utility model is developed based on this drawback.
Utility model content
In order to overcome defect of the prior art, the purpose of this utility model is to provide a kind of PDC drill bit with extended type nozzle, the described a kind of PDC drill bit with extended type nozzle improves the clear rock ability in shaft bottom, plays brokenly the effect of rock simultaneously but does not affect the ability of runner chip removal.
The utility model is achieved by the following technical solution:
A PDC drill bit for extended type nozzle, comprises bit matrix, the rimmer knife wing, the short sword wing, blade, water pipeline, extended type nozzle, and described bit matrix is provided with the rimmer knife wing and the short sword wing, and the described rimmer knife wing and the short sword wing are provided with blade; Described bit matrix is provided with water pipeline, is provided with extended type nozzle in described water pipeline.
Be preferably, the described rimmer knife wing and the short sword wing arrange in pairs, and the described rimmer knife wing and the short sword wing are in the bit matrix arrangement that is radially interspersed.
Be preferably, described blade is diamond compact.
Be preferably, described blade is cylindrical, elliptical cylinder-shape, wedge cylindricality, four prism type or triangular prism shaped.
Be preferably, described extended type nozzle interior is provided with the pipeline of two circular arcs.
Be preferably, described extended type nozzle top is provided with cruciform groove.
Be preferably, described extended type nozzle is threaded with described water pipeline.
Compared with prior art, the superior effect of a kind of PDC drill bit with extended type nozzle described in the utility model is: adopted described extended type nozzle, effectively shortened the distance of described extended type nozzle and well drilling well bottom, increased the backwash rate of well drilling well bottom, effectively reduce bit balling, improved the rate of penetration of described drill bit simultaneously, safe and reliable, described PDC drill bit can be widely used in the exploitation of oil drilling and geological drilling, tool promotional value.
Accompanying drawing explanation
Fig. 1 is a kind of PDC drill bit structure schematic diagram with extended type nozzle described in the utility model;
Fig. 2 is a kind of PDC drill bit top view with extended type nozzle described in the utility model;
Fig. 3 is extended type nozzle sectional view described in the utility model;
Fig. 4 is extended type nozzle top view described in the utility model.
Description of reference numerals is as follows:
11-bit matrix, the 12-rimmer knife wing, the 13-short sword wing, 14-blade, 15-water pipeline, 16-extended type nozzle, 161-pipeline, 162-groove.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model specific embodiment is described in further detail.
A kind of PDC drill bit with extended type nozzle, comprise bit matrix 11, the rimmer knife wing 12, the short sword wing 13, blade 14, water pipeline 15, extended type nozzle 16, described bit matrix 11 is provided with the rimmer knife wing 12 and the short sword wing 13, and the described rimmer knife wing 12 and the short sword wing 13 are provided with blade 14; Described bit matrix 11 is provided with water pipeline 15, in described water pipeline 15, is provided with extended type nozzle 16.
The described rimmer knife wing 12 and the short sword wing 13 arrange in pairs, and the described rimmer knife wing 12 and the short sword wing 13 are in bit matrix 11 arrangement that is radially interspersed.
Described blade 14 is diamond compact, and described blade 14 is cylindrical, elliptical cylinder-shape, wedge cylindricality, four prism type or triangular prism shaped.
Described extended type nozzle 16 inside are provided with the pipeline 161 of two circular arcs.
Described extended type nozzle 16 tops are provided with cruciform groove 162.
Described extended type nozzle 16 is threaded with described water pipeline 15.
Described extended type nozzle length is 50mm, and nozzle is placed in the water side of water pipeline 15 with the form being threaded.And conventional nozzle length is 34.8mm, extended type nozzle described in the utility model has reduced 15.2mm than conventional nozzle apart from the distance of well drilling well bottom, effectively shortened the distance of described extended type nozzle 16 and well drilling well bottom, increased the backwash rate of well drilling well bottom, effectively reduce bit balling, improved the rate of penetration of described PDC drill bit simultaneously.
The rimmer knife wing 12 of described PDC drill bit and the short sword wing 13 are made as surperficial powder (not shown) as main carcass powder (not shown) and high rigidity carcass powder by the larger carcass powder of flexural strength, and described PDC drill bit wing has stronger flexural strength and erosion resistance.
While using at the scene, described extended type nozzle 16 has preferably clear rock ability and auxiliary hydraulic drilling effect, and because of the shear cracking action of diamond compact, described PDC drill bit has higher rate of penetration and life-span.
Described extended type nozzle 16 can further improve rate of penetration and the life-span of drill bit, described extended type nozzle 16 will provide sufficient drilling fluid for drill bit simultaneously, avoided at described PDC drill bit top, producing mud drum, made described PDC drill bit obtain good cleaning and cooling.
The utility model is not limited to above-mentioned embodiment, and in the situation that not deviating from flesh and blood of the present utility model, any distortion it may occur to persons skilled in the art that, improvement, replacement all fall into scope of the present utility model.

Claims (6)

1. the PDC drill bit with extended type nozzle, it is characterized in that, comprise bit matrix, the rimmer knife wing, the short sword wing, blade, water pipeline, extended type nozzle, described bit matrix is provided with the rimmer knife wing and the short sword wing, and the described rimmer knife wing and the short sword wing are provided with blade; Described bit matrix is provided with water pipeline, is provided with extended type nozzle in described water pipeline.
2. a kind of PDC drill bit with extended type nozzle according to claim 1, is characterized in that, the described rimmer knife wing and the short sword wing arrange in pairs, and the described rimmer knife wing and the short sword wing are in the bit matrix arrangement that is radially interspersed.
3. a kind of PDC drill bit with extended type nozzle according to claim 1, is characterized in that, described blade is diamond compact.
4. a kind of PDC drill bit with extended type nozzle according to claim 1, is characterized in that, described blade is cylindrical, elliptical cylinder-shape, wedge cylindricality, four prism type or triangular prism shaped.
5. a kind of PDC drill bit with extended type nozzle according to claim 1, is characterized in that, described extended type nozzle interior is provided with the pipeline of two circular arcs.
6. a kind of PDC drill bit with extended type nozzle according to claim 1 or 5, is characterized in that, described extended type nozzle top is provided with cruciform groove.
CN201320570234.0U 2013-09-13 2013-09-13 Primary domain controller (PDC) drill with stretched nozzle Active CN203420640U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320570234.0U CN203420640U (en) 2013-09-13 2013-09-13 Primary domain controller (PDC) drill with stretched nozzle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320570234.0U CN203420640U (en) 2013-09-13 2013-09-13 Primary domain controller (PDC) drill with stretched nozzle

Publications (1)

Publication Number Publication Date
CN203420640U true CN203420640U (en) 2014-02-05

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CN (1) CN203420640U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104358522A (en) * 2014-11-06 2015-02-18 中国石油化工股份有限公司 PDC (Polycrystalline Diamond Compact) drill bit suitable for shale gas well shale stratum drilling
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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104358522A (en) * 2014-11-06 2015-02-18 中国石油化工股份有限公司 PDC (Polycrystalline Diamond Compact) drill bit suitable for shale gas well shale stratum drilling
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

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