CN104747092A - Bit nozzle internal-blockage preventing device - Google Patents
Bit nozzle internal-blockage preventing device Download PDFInfo
- Publication number
- CN104747092A CN104747092A CN201310743987.1A CN201310743987A CN104747092A CN 104747092 A CN104747092 A CN 104747092A CN 201310743987 A CN201310743987 A CN 201310743987A CN 104747092 A CN104747092 A CN 104747092A
- Authority
- CN
- China
- Prior art keywords
- nozzle
- bit
- preventing device
- internal
- blockage preventing
- 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.)
- Pending
Links
- 230000001681 protective effect Effects 0.000 abstract 4
- 239000003208 petroleum Substances 0.000 abstract 1
- 238000005553 drilling Methods 0.000 description 8
- 239000012634 fragment Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000036346 tooth eruption Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
- E21B10/61—Drill bits characterised by conduits or nozzles for drilling fluids characterised by the nozzle structure
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a bit nozzle internal-blockage preventing device in the technical field of petroleum and geological drill bits. The bit nozzle internal-blockage preventing device is implemented through two kinds of measures: firstly, the bit nozzle internal-blockage preventing device is characterized in that a protective cover with the external diameter smaller than that of a hollow pipe connector is arranged at one end of a hollow pipe, an upper inlet and a lateral inlet both with the bore smaller than the internal diameter of a nozzle is formed in the top and the lateral periphery of the protective cover respectively, and the external diameter of the hollow pipe connector is equivalent to that of the nozzle; secondly, the bit nozzle internal-blockage preventing device is characterized in that a protective cover with the external diameter smaller than that of the nozzle is arranged at one end of the nozzle, and an upper inlet and a lateral inlet both with the bore smaller than the internal diameter of the nozzle is formed in the top and the lateral periphery of the protective cover respectively. The bit nozzle internal-blockage preventing device has the advantages that the bit nozzle internal-blockage preventing device is simple in structure and convenient to use; the internal-blockage preventing device matched with the nozzle is added independently or the internal-blockage preventing device is integrally added on the basis of an existing nozzle structure, so that the problem that foreign matters block the bit nozzle is solved effectively.
Description
Technical field
The present invention relates to the anti-interior block apparatus of a kind of bit nozzle in oil and geological drill bit technical field.
Background technology
In oil and geological drilling process, often use drilling tool with fallible components such as rubber as helicoid hydraulic motor, torsion generator, hydraulic thruster etc.Fallible component inner after these drilling tool work certain hours there will be the situations such as damage comes off, and the fragment fallen down flows to bit nozzle place along drilling tool endoporus always, and less fragment can be discharged by bit nozzle, and larger fragment can block bit nozzle.In the process such as to make up a joint, other foreign matter falls into because of carelessness in drilling rod and can block bit nozzle equally in addition.The damage of the corresponding wing cutting teeth of the blocked rear quickening of bit nozzle, causes drill bit fully used and damage, and needs trip-out bit change, extend drilling period, add drilling cost after the improper damage of drill bit.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, provide a kind of reasonable in design, anti-interior block apparatus of the simple bit nozzle of structure, it can effectively prevent bit nozzle from blocking from inside.
Technical scheme of the present invention is realized by following two kinds of measures:
A kind of bit nozzle prevents that interior block apparatus is provided with the guard shield that external diameter is less than hollow section connector external diameter, the top of this guard shield and side periphery arrange upper inlet and the side entrance that bore is less than nozzle inside diameter, and hollow section connector external diameter is suitable with nozzle od.
Hollow section connector is provided with screw thread or ripple.
Upper inlet and side entrance comprise circle, triangle, square or polygon, and its quantity is single port or many mouthfuls.
Another kind of bit nozzle prevents that interior block apparatus is provided with the guard shield that external diameter is less than nozzle od, and the top of this guard shield and side periphery arrange upper inlet and the side entrance that bore is less than nozzle inside diameter.
Nozzle exterior is provided with screw thread or ripple.
Upper inlet and side entrance comprise circle, triangle, square or polygon, and its quantity is single port or many mouthfuls.
The present invention by set up coordinate separately with nozzle anti-in block apparatus or set up on existing nozzle arrangements basis one anti-in block apparatus, efficiently solve the shutoff problem of foreign matter to bit nozzle, its structure is simply, easy to use.
Accompanying drawing explanation
Fig. 1 is the front view of an embodiment of the present invention.
Fig. 2 is the partial sectional view figure that an embodiment of the present invention is arranged on drill bit.
In figure: 1. upper inlet, 2 side entrances, 3 hollow section connectors, 4 times outlets, 5 bit nozzles, 6 bit bodys, 7 wings, 8 runners.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.
Embodiment 1
As shown in Figure 1, the present embodiment is provided with the guard shield that external diameter is less than hollow section connector 3 external diameter, the top of this guard shield and side periphery arrange upper inlet 1 and the side entrance 2 that bore is less than nozzle inside diameter, and hollow section connector 3 external diameter is suitable with bit nozzle 5 external diameter.
Hollow section connector 3 is provided with screw thread so that bit nozzle connects, also can directly at hollow section connector 3 outer setting ripple, to increase the adhesion of this device and nozzle passage.
Upper inlet and side entrance comprise circle, triangle, square or polygon, and its quantity is single port or many mouthfuls.
Embodiment 2
Another kind of bit nozzle prevents that interior block apparatus is provided with the guard shield that external diameter is less than nozzle od, and the top of this guard shield and side periphery arrange upper inlet and the side entrance that bore is less than nozzle inside diameter.Nozzle in this embodiment can adopt lengthening mode to replace hollow section connector in embodiment 1.
Nozzle exterior is provided with screw thread or ripple to increase the adhesion of this device and nozzle passage.
Upper inlet and side entrance comprise circle, triangle, square or polygon, and its quantity is single port or many mouthfuls.
Operating principle:
The present invention is connected with the nozzle passage of bit body 6 by hollow section connector 3, and it is inner that upper inlet 1 and side entrance 2 are exposed at drill bit runner 8.The arbitrary single hole area of passage of upper inlet 1 and side entrance 2 is less than nozzle area of passage.The internal diameter of hollow section connector 3 part is more than or equal to nozzle inside diameter.
When the foreign matters such as rubber arrive along runner 8 anti-in block apparatus place time, less foreign matter can be flow in nozzle by upper inlet 1 or side entrance 2 and flow out from nozzle, larger foreign matter is blocked cannot enter nozzle by guard shield, and drilling fluid can be entered nozzle by remaining entrance thus played the effect preventing nozzle from blocking from inside.
Claims (6)
1. the anti-interior block apparatus of bit nozzle, it is characterized in that: be provided with the guard shield that external diameter is less than hollow section connector external diameter a hollow section one end, the top of this guard shield and side periphery arrange upper inlet and the side entrance that bore is less than nozzle inside diameter, and hollow section connector external diameter is suitable with nozzle od.
2. the anti-interior block apparatus of bit nozzle according to claim 1, is characterized in that: hollow section connector is provided with screw thread or ripple.
3. bit nozzle according to claim 1 and 2 anti-in block apparatus, it is characterized in that: upper inlet and side entrance comprise circle, triangle, square or polygon, its quantity is single port or many mouthfuls.
4. the anti-interior block apparatus of bit nozzle, it is characterized in that: be provided with the guard shield that external diameter is less than nozzle od in nozzle one end, the top of this guard shield and side periphery arrange upper inlet and the side entrance that bore is less than nozzle inside diameter.
5. the anti-interior block apparatus of bit nozzle according to claim 4, is characterized in that: nozzle exterior is provided with screw thread or ripple.
6. block apparatus in the bit nozzle according to claim 4 or 5 is anti-, is characterized in that: upper inlet and side entrance comprise circle, triangle, square or polygon, and its quantity is single port or many mouthfuls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310743987.1A CN104747092A (en) | 2013-12-31 | 2013-12-31 | Bit nozzle internal-blockage preventing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310743987.1A CN104747092A (en) | 2013-12-31 | 2013-12-31 | Bit nozzle internal-blockage preventing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104747092A true CN104747092A (en) | 2015-07-01 |
Family
ID=53587271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310743987.1A Pending CN104747092A (en) | 2013-12-31 | 2013-12-31 | Bit nozzle internal-blockage preventing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104747092A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4567954A (en) * | 1983-12-02 | 1986-02-04 | Norton Christensen, Inc. | Replaceable nozzles for insertion into a drilling bit formed by powder metallurgical techniques and a method for manufacturing the same |
| CN201908577U (en) * | 2010-11-02 | 2011-07-27 | 武汉亿斯达工具有限公司 | Anti-blocking type diamond bit |
| CN103555295A (en) * | 2013-11-15 | 2014-02-05 | 东营利丰化工新材料有限公司 | Plugging shield agent for drilling fluid |
| CN103775015A (en) * | 2012-10-18 | 2014-05-07 | 中国石油化工股份有限公司 | Downhole expansion tool for sleeve and method for using downhole expansion tool for sleeve to expand sleeve |
-
2013
- 2013-12-31 CN CN201310743987.1A patent/CN104747092A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4567954A (en) * | 1983-12-02 | 1986-02-04 | Norton Christensen, Inc. | Replaceable nozzles for insertion into a drilling bit formed by powder metallurgical techniques and a method for manufacturing the same |
| CN201908577U (en) * | 2010-11-02 | 2011-07-27 | 武汉亿斯达工具有限公司 | Anti-blocking type diamond bit |
| CN103775015A (en) * | 2012-10-18 | 2014-05-07 | 中国石油化工股份有限公司 | Downhole expansion tool for sleeve and method for using downhole expansion tool for sleeve to expand sleeve |
| CN103555295A (en) * | 2013-11-15 | 2014-02-05 | 东营利丰化工新材料有限公司 | Plugging shield agent for drilling fluid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150701 |
|
| WD01 | Invention patent application deemed withdrawn after publication |