CN201386512Y - Drill bit provided with flexible nozzle - Google Patents
Drill bit provided with flexible nozzle Download PDFInfo
- Publication number
- CN201386512Y CN201386512Y CN200920079993U CN200920079993U CN201386512Y CN 201386512 Y CN201386512 Y CN 201386512Y CN 200920079993 U CN200920079993 U CN 200920079993U CN 200920079993 U CN200920079993 U CN 200920079993U CN 201386512 Y CN201386512 Y CN 201386512Y
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- nozzle
- flexible
- drill bit
- joint
- hose
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Abstract
The utility model relates to a drill bit provided with a flexible nozzle and used in drilling engineering, which can better clean and cool the drill bit, clear the bottom rock debris and assist to crack rocks. The technical solution thereof is as follows: the flexible nozzle is connected with the drill bit at the nozzle hole of the drill bit; a drilling fluid spray hole which communicates a channel in the drill bit and a space outside the aiguille is arranged in the flexible nozzle; the flexible nozzle consists of a joint connected with the drill bit and a flexible spray tube; and the flexible spray tube is independently formed by one of a metal hose or a rubber hose or a plastic hose, or is composited by two or three among the hoses. The flexible nozzle uses the hose with continuous tube walls or discontinuous tube walls. The flexible nozzle can remarkably shorten the distance between the outlet of the drill bit nozzle and the bottom, reduce the energy loss of the jet flow of the drilling fluid, enlarge the active area of the jet flow to the bottom, and generate pulsation effect at the bottom, and can adjust the orientation of the outlet of the nozzle to realize the functions like located jetting, oblique jetting and the like. The flexible nozzle has good breaking strength and high reliability.
Description
Technical field
The utility model relates to a kind of drill bit that is equipped with flexible nozzle that is used for field drilling engineerings such as petroleum gas, mine engineering, basic engineering construction, geology, water wave.
Background technology
Drill bit be in the drilling engineering in order to fractured rock, form the rock crushing tool of pit shaft.Drill bit all can be loaded onto nozzle as last going into well.Nozzle is mounted in the auxiliary element on the drill bit, and the place links with drill bit in the drill bit nozzle hole, and nozzle is provided with the drilling fluid spray-hole that the drill bit inner flow passage is connected with the drill bit external space.The purpose that nozzle is installed on the drill bit is to increase the jet velocity of drilling fluid, it is cleaned better and cools off drill bit, removes the shaft bottom landwaste, and utilizes the energy addi-tional crusher bottom rock of drilling fluid jet.
Because by all containing solid phase particles in the drilling fluid of nozzle usually, and effluxvelocity is very fast, so require nozzle to have stronger erosion resistance ability.In order to reach this purpose, employed nozzle is made by high rigidity such as carbide alloy, high-wearing feature material on the drill bit at present.In order to reach the purpose that strengthens nozzle cleaning, cooling and auxiliary rock-breaking effect, the technological means that adopts has three kinds usually: the first, and the length of increase nozzle shortens the distance of jet expansion to the shaft bottom, reduces the energy loss of drilling fluid jet; The second, the flow passage structure of change nozzle forms high-speed jet or pulsing jet; The 3rd, the position of appropriate design nozzle and jet direction had both made full use of the energy of drilling fluid jet, avoided causing the erosion of drill bodies such as gear wheel again.
Though these three kinds of means are effective, but also there is following limitation: at first, the anti-fracture energy of high rigidity nozzle reduces with the increase of its length, if length is excessive, rupture easily when being collided, in a single day phenomenon of rupture takes place, and its consequence is not only that nozzle lost efficacy, the nozzle of more seriously falling into the shaft bottom can damage drill bit, and the drilling well process is formed very adverse influence.Secondly, when the length of nozzle surpasses certain limit, might increase difficulty and nozzle mounting hardness that drill bit is made.The 3rd, the position of drill bit top nozzle and jet direction are just definite in when design, and in a single day nozzle is installed on the drill bit, and its position and jet direction are just fixing, can't regulate, and this is that the rigidity characteristics of nozzle arrangements determine.Because this circumscribed existence in three aspects has limited giving full play to of nozzle usefulness.
Summary of the invention
The purpose of this utility model is: can press close to well safe, work efficiently in order to make the nozzle on the drill bit, make full use of the jet energy of drilling fluid, clean better and cool off drill bit, remove the shaft bottom landwaste, the addi-tional crusher bottom rock, the spy provides a kind of drill bit that is equipped with flexible nozzle.
For achieving the above object, the technical solution used in the present invention is as follows: a kind of drill bit that is equipped with flexible nozzle, to form by drill bit and flexible nozzle, and its architectural feature is: flexible nozzle is connected with drill bit at place, drill bit nozzle hole; Flexible nozzle is provided with the drilling fluid spray-hole that the drill bit inner flow passage is connected with the drill bit external space; Flexible nozzle is made of the joint and the flexible joint nozzle that link with the bit nozzle hole; The all or part of of flexible joint nozzle is to be made of separately metal hose or a kind of of rubber hose or plastic flexible pipe, or flexible pipe is compound constitutes by wherein two to three kinds.
Constituting the metal hose of flexible joint nozzle or rubber hose or plastic flexible pipe is with the continuous flexible pipe of tube wall, or with the discontinuous flexible pipe of tube wall.Constituting the metal hose of flexible joint nozzle or rubber hose or plastic flexible pipe is the flexible pipe of homogenous material, or is the flexible pipe of composite material of matrix with metal, rubber or plastics.
Be equipped with the drill bit of flexible nozzle, the nozzle on the drill bit is to use flexible nozzle entirely, or is flexible nozzle partly, and part is a conventional nozzle.The port of export of flexible nozzle is equipped with the rigidity nozzle.The external surface of flexible joint nozzle and water passage surface or external surface or water passage surface add and cover the braiding net.
The drill bit that is equipped with flexible nozzle comprises various downhole tool, particularly rock bit, diamond bit and the hydraulic drilling instruments that have broken rock function and need to install nozzle.
The utility model compared with prior art, its beneficial effect is: when the metal hose that (1) forms when the metal hose employing metal tape screw winding that constitutes flexible nozzle etc. has elastomeric flexible pipe, also be difficult for plastic strain and fracture take place even very big distortion takes place flexible joint nozzle, the functional reliability of nozzle is apparently higher than the plain nozzle of equal length; (2) flexible nozzle on the drill bit has obvious length dimension greater than plain nozzle, and jet expansion is shorter to the distance on surface, shaft bottom, under same nozzle diameter and flow condition, can provide more strong wallop to bottom rock; (3) when nozzle length is big, the beat vibration will take place with the motion of drill bit in the flexible joint nozzle of nozzle, particularly when the metal hose that constitutes flexible nozzle adopted metal hose that the metal tape screw winding forms etc. to have the flexible pipe of strong elasticity, this beat Oscillation Amplitude was bigger.The beat vibration of nozzle can enlarge the zone of action of drilling fluid jet in the shaft bottom, and produces pulsation effect in the shaft bottom, strengthens nozzle operation usefulness; (4) when the metal hose that constitutes flexible nozzle adopts corrugated flexible metal tube etc. to have the flexible pipe of strong plastic property, nozzle just can possess the adjustable characteristic in outlet orientation, use this flexible nozzle can increase the flexibility of nozzle application, be easy to realize functions such as location injection, angular injection; (5) the jet pipe intensity of flexible nozzle is low, even if rupture, come off, also can not damage drill bit.
Description of drawings
Fig. 1 is equipped with the overall structure schematic diagram of the drill bit of flexible nozzle for the utility model.Among the figure: 1. drill bit, 2. flexible nozzle.
Fig. 2 is by the compound generalized section that constitutes of two-layer flexible pipe for the flexible joint nozzle of this flexible nozzle.Among the figure: 3. joint, 4. flexible joint nozzle, 5. drilling fluid spray-hole.
Fig. 3 is the broken section enlarged drawing of the flexible joint nozzle of Fig. 2.
Fig. 4 is by three layers of compound generalized section that constitutes of flexible pipe for the flexible joint nozzle of this flexible nozzle.
Fig. 5 is the broken section enlarged drawing of the flexible joint nozzle of Fig. 4.
Fig. 6 is the generalized section that is made of one deck flexible pipe for the compliant section of this flexible nozzle.
Fig. 7 is the broken section enlarged drawing of the flexible joint nozzle of Fig. 6.
Fig. 8 is equipped with rigidity structure of nozzle schematic diagram for the port of export of this flexible nozzle.Among the figure: 6. rigidity nozzle.
The specific embodiment
Below in conjunction with the description of drawings specific embodiment of the present utility model.
Embodiment 1:
The drill bit 1 or the drilling tool that are equipped with this flexible nozzle 2 can be various downhole tool, particularly rock bit, diamond bit and the hydraulic drilling instruments that have broken rock function and need to install nozzle.
Embodiment 2:
The drill bit 1 or the drilling tool that are equipped with this flexible nozzle 2 can be various downhole tool, particularly rock bit, diamond bit and the hydraulic drilling instruments that have broken rock function and need to install nozzle.
Embodiment 3:
The drill bit 1 or the drilling tool that are equipped with this flexible nozzle 2 can be various downhole tool, particularly rock bit, diamond bit and the hydraulic drilling instruments that have broken rock function and need to install nozzle.
Embodiment 4:
The drill bit 1 or the drilling tool that are equipped with this flexible nozzle 2 can be various downhole tool, particularly rock bit, diamond bit and the hydraulic drilling instruments that have broken rock function and need to install nozzle.
Fig. 2 is a kind of of this flexible nozzle 2.Flexible joint nozzle 4 is by plastic flexible pipe or rubber hose and metal hose is compound constitutes.
Fig. 3 is a kind of of this flexible nozzle 2, the broken section that is the flexible joint nozzle 4 of Fig. 2 amplifies, be a kind of embodiment of flexible joint nozzle 4, flexible joint nozzle 4 adopts plastic flexible pipes or rubber hose and the discontinuous metal hose of tube wall that formed by the metal tape screw winding is compound constitutes.
Fig. 4 is a kind of of this flexible nozzle 2.Flexible joint nozzle 4 is by plastic flexible pipe or rubber hose, metal hose and wire or the steel band mesh grid is compound constitutes.
Fig. 5 is a kind of of this flexible nozzle 2, is that the broken section of the flexible joint nozzle 4 of Fig. 4 amplifies, and is a kind of embodiment of flexible joint nozzle 4, and flexible joint nozzle 4 adopts plastic flexible pipe or rubber hose, corrugated flexible metal tube and the compound formation of metal tape braiding net.
Fig. 6 is a kind of of this flexible nozzle 2.Flexible joint nozzle 4 by homogenous material metal hose or rubber hose or plastic flexible pipe constitute, or be that the flexible pipe of composite material of matrix constitutes with metal or rubber or plastics.
Fig. 7 is a kind of of this flexible nozzle 2, is that the broken section of the flexible joint nozzle 4 of Fig. 6 amplifies, and is a kind of embodiment of flexible joint nozzle 4, and it is the wire reinforced composite material flexible pipe of matrix that flexible joint nozzle 4 adopts with rubber or plastics.
Fig. 8 is a kind of of this flexible nozzle 2.Flexible joint nozzle 4 has one section rubber hose or plastic flexible pipe, and the port of export of rubber hose or plastic flexible pipe is equipped with carbide alloy rigidity nozzle 6.
The utility model is used for drilling engineering (oil and gas well drilling, mine engineering, basic engineering construction, geological drilling, water wave drilling well etc.), and this flexible nozzle is used for drilling bit or other drilling tool.
Claims (5)
1, a kind of drill bit that is equipped with flexible nozzle is made up of drill bit and flexible nozzle, it is characterized in that: flexible nozzle (2) links at the nozzle bore place and the drill bit (1) of drill bit (1); Flexible nozzle (2) is provided with the drilling fluid spray-hole (5) that drill bit (1) inner flow passage is connected with drill bit (1) external space; Flexible nozzle (2) is made of joint (3) that links with the bit nozzle hole and flexible joint nozzle (4); Flexible joint nozzle (4) all or part of is to be made of separately a kind of in metal hose or rubber hose or the plastic flexible pipe, or by wherein two to three kinds flexible pipe is compound constitutes.
2, the drill bit that is equipped with flexible nozzle according to claim 1 is characterized in that: constitute the metal hose of flexible joint nozzle (4) or rubber hose or plastic flexible pipe with the continuous flexible pipe of tube wall, or with the discontinuous flexible pipe of tube wall.
3, the drill bit that is equipped with flexible nozzle according to claim 1, it is characterized in that: constituting the metal hose of flexible joint nozzle (4) or rubber hose or plastic flexible pipe is the flexible pipe of homogenous material, or is the flexible pipe of composite material of matrix with metal or rubber or plastics.
4. the drill bit that is equipped with flexible nozzle according to claim 1 is characterized in that: the port of export of flexible joint nozzle (4) is equipped with rigidity nozzle (6).
5, the drill bit that is equipped with flexible nozzle according to claim 1 is characterized in that: the external surface of flexible joint nozzle (4) or water passage surface add and cover the braiding net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920079993U CN201386512Y (en) | 2009-04-01 | 2009-04-01 | Drill bit provided with flexible nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920079993U CN201386512Y (en) | 2009-04-01 | 2009-04-01 | Drill bit provided with flexible nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201386512Y true CN201386512Y (en) | 2010-01-20 |
Family
ID=41579045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920079993U Expired - Lifetime CN201386512Y (en) | 2009-04-01 | 2009-04-01 | Drill bit provided with flexible nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201386512Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509352B (en) * | 2009-03-11 | 2011-08-10 | 西南石油大学 | Drill with flexible nozzle |
| CN112177539A (en) * | 2020-09-28 | 2021-01-05 | 沧州格锐特钻头有限公司 | Drill bit with hydraulic fracturing function |
| CN114856453A (en) * | 2022-07-06 | 2022-08-05 | 胜利油田万和石油工程技术有限责任公司 | PDC drill bit with quick assembly disassembly formula nozzle |
-
2009
- 2009-04-01 CN CN200920079993U patent/CN201386512Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509352B (en) * | 2009-03-11 | 2011-08-10 | 西南石油大学 | Drill with flexible nozzle |
| CN112177539A (en) * | 2020-09-28 | 2021-01-05 | 沧州格锐特钻头有限公司 | Drill bit with hydraulic fracturing function |
| CN114856453A (en) * | 2022-07-06 | 2022-08-05 | 胜利油田万和石油工程技术有限责任公司 | PDC drill bit with quick assembly disassembly formula nozzle |
| CN114856453B (en) * | 2022-07-06 | 2022-09-09 | 胜利油田万和石油工程技术有限责任公司 | PDC drill bit with quick assembly disassembly formula nozzle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100120 Effective date of abandoning: 20090401 |