CN104265196A - Drilling centralizer and drilling tool - Google Patents
Drilling centralizer and drilling tool Download PDFInfo
- Publication number
- CN104265196A CN104265196A CN201410449222.1A CN201410449222A CN104265196A CN 104265196 A CN104265196 A CN 104265196A CN 201410449222 A CN201410449222 A CN 201410449222A CN 104265196 A CN104265196 A CN 104265196A
- Authority
- CN
- China
- Prior art keywords
- centralizer
- drilling
- boring
- main body
- righting
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes
Abstract
The invention provides a drilling centralizer and a drilling tool. The drilling centralizer comprises a cylindrical drilling centralizer body, wherein a plurality of centralizing wings are arranged on the outer surface of the drilling centralizer body, the outer surfaces of the centralizing wings are smooth cambered surfaces, and the cambered surfaces are coaxial with the outer surface of the drilling centralizer body. The drilling tool comprises a drill bit and a drill rod and further comprises the drilling centralizer arranged between the drill bit and the drill rod. Due to the fact that the drilling centralizer plays a good centralizing role on the drilling tool in the drilling construction process and the outer surfaces of the centralizing wings are smooth cambered surfaces, relative fiction between the centralizer and the wall of a hole can be effectively decreased, the wall of the hole is not abraded, the drilling centralizer ensures that the hole can be drilled in place according to the design requirement in one time, the drilled hole scrapping accident caused by too large deflection of the drilled hole is further avoided, and drilling production efficiency is improved.
Description
Technical field
The present invention relates to a kind of boring and protect straight device, particularly relate to a kind of boring centralizer and drilling tool, belong to drilling project technical field.
Background technology
In mine safety work progress, down-hole drilling has become the hydrology and engineering geological conditions of verifying coal seam in advance, for construction provides the necessary means of reliable geologic information.
Drilling in work progress, require to keep drilling track to put in place according to designing requirement construction, but, due to the impact of the factors such as rig, construction technology, stratigraphic structure, cause holing the deflection that there will be in various degree, even often occur that boring such as to scrap at the situation, for mining construction brings potential safety hazard, affect efficiency of construction.Therefore, boring is protected directly has become technical barrier urgently to be resolved hurrily in mine safety, efficient construction.
Summary of the invention
The invention provides a kind of boring centralizer and drilling tool, drilling track can be kept to put in place according to designing requirement construction drilling in work progress, effectively solve boring and protect straight technical barrier.
Boring centralizer provided by the invention, comprise: cylindrical boring centralizer main body, the external surface of described boring centralizer main body is provided with multiple righting wing, and the external surface of the described righting wing is smooth arc-shaped surface, and described cambered surface is coaxial with the external surface of described boring centralizer main body.
Because above-mentioned boring centralizer plays good centralizing function to drilling tool in the process of construction of drilling, and the external surface of the described righting wing is smooth arc-shaped surface, the Relative friction between centralizer and hole wall can be effectively reduced, can not be worn and torn hole wall, it not only ensure that boring can put in place according to designing requirement one-off construction, also avoid the generation that accident is scrapped in the boring caused because hole scattering is excessive, improve production efficiency of drilling.Meanwhile, above-mentioned boring centralizer has the processing feature such as simple and easy, easy to operate.
In one embodiment of this invention, the several righting wings be positioned in above-mentioned multiple righting wing on same cross section form a righting wing group, and each righting wing in identical righting wing group is uniformly distributed.
In one embodiment of this invention, the external surface of above-mentioned boring centralizer main body is provided with at least two righting wing groups, and is spacedly distributed between each righting wing group.
In one embodiment of this invention, the above-mentioned righting wing is welded on the external surface of described boring centralizer main body, or one-body molded with the main body of boring centralizer.
In one embodiment of this invention, one end of above-mentioned boring centralizer main body is provided with the external screw thread for the drill bit that is spirally connected, and the other end is provided with the internal thread for the drilling rod that is spirally connected.
In one embodiment of this invention, the external surface of above-mentioned boring centralizer main body is provided with 3 righting wing groups, and each righting wing group comprises 3 righting wings.
Drilling tool provided by the invention, comprise drill bit and drilling rod, also comprise the above-mentioned arbitrary boring centralizer be arranged between described drill bit and described drilling rod, under construction to layer-through drilling, long apart from have very effective guarantor directly to act on to the boring etc. that discharges water of layer-through drilling, extra long distance.It not only ensure that boring can put in place according to designing requirement one-off construction, also avoid the generation that accident is scrapped in the boring caused because hole scattering is excessive, improves production efficiency of drilling.
Accompanying drawing explanation
The boring centralizer schematic diagram that Fig. 1 provides for one embodiment of the invention;
The boring centralizer generalized section that Fig. 2 provides for one embodiment of the invention;
The boring centralizer Construction Principle schematic diagram that Fig. 3 provides for one embodiment of the invention.
Reference numeral:
A: boring centralizer; 10: centralizer main body;
20,21,22,23: the righting wing; S
1: centralizer body outer surface;
S
2: righting wing external surface; S
3: borehole wall;
30: conduit; F
1, F
2, F
3: active force;
T
1, T
2, T
3: righting wing group; 11: external screw thread;
12: internal thread.
Detailed description of the invention
For above-mentioned feature and advantage of the present invention can be become apparent, special embodiment below, and coordinate accompanying drawing to be described in detail below.
The boring centralizer schematic diagram that Fig. 1 provides for one embodiment of the invention, the boring centralizer generalized section that Fig. 2 provides for one embodiment of the invention.Please refer to Fig. 1 and Fig. 2, the boring centralizer A that the present embodiment provides comprises: cylindrical boring centralizer main body 10, boring centralizer body outer surface S
1on be provided with multiple righting wing 20, righting wing external surface S
2for smooth arc-shaped surface, and described cambered surface, namely righting wing external surface S
2with boring centralizer body outer surface S
1coaxially.
Concrete, boring centralizer main body 10 can be cylindrical hard metal bar, in construction application, diameter and the Metallic rod be of convenient length can be selected according to actual needs as boring centralizer main body.In the present embodiment, the righting wing 20 is welded on the external surface S of centralizer main body
1on, be appreciated that the righting wing 20 can be arranged on the external surface S of centralizer main body in any form
1on, as the righting wing can be one-body molded with centralizer main body.The number of the righting wing can adjust according to actual needs, and the size of the righting wing can adjust according to boring (or drill bit) size.The cross-sectional diameter of the boring centralizer that the present embodiment provides is slightly less than the diameter of boring (or drill bit), such as, be applicable to the Φ 92mm centralizer that Φ 94mm holes, or is applicable to the Φ 110mm centralizer etc. of Φ 113mm boring.
Further, please refer to boring centralizer generalized section as shown in Figure 2, the righting wing 21,22 and 23 be positioned on same cross section forms a righting wing group, and the righting wing 21,22 and 23 is uniformly distributed in boring centralizer body outer surface S
1on.The righting wing 21, gap-forming conduit 30 between 22 and 23, as the channel of chip removal of drilling in the process of construction.
It should be noted that, what the boring centralizer main body in the present embodiment was selected is hollow cylindrical hard metal bar, is appreciated that boring centralizer main body can be the cylindrical hard metal bar of arbitrary form, such as solid, part hollow etc.
The boring centralizer operating principle schematic diagram that Fig. 3 provides for one embodiment of the invention, as shown in Figure 3, because each righting wing in identical righting wing group is uniformly distributed in the external surface S of centralizer main body
1on, borehole wall S
3to the directed force F of centralizer
1, F
2, F
3to make a concerted effort be zero, thus ensure that whole drilling tool stress balance, be in equilibrium state all the time, more steady in the process of construction of drilling, unlikely generation deflection.
In another embodiment of the present invention, the external surface S of boring centralizer main body
1on be provided with at least two righting wing groups, and be spacedly distributed between each righting wing group, better can play boring on the one hand and protect straight effect, on the other hand, due to the conduit 30 formed in each righting wing group, good guide functions is played in discharge for drilling cuttings, thus effectively prevent the generation of drilling cuttings congestion.
Preferably, at the external surface S of boring centralizer main body
1on be provided with 3 righting wing group T
1, T
2and T
3, and each righting wing group comprises 3 righting wings.
The boring centralizer A that above-described embodiment provides is in concrete construction application, be connected between drill bit and drilling rod, as shown in Figure 1, one end of boring centralizer main body 10 is provided with the external screw thread 11 for the drill bit that is spirally connected, also known as male thread, the other end is provided with the internal thread 12 for the drilling rod that is spirally connected, also known as box thread.
It should be noted that, in practical application, the thread forms at boring centralizer main body two ends specifically can be set according to the form of being spirally connected of drill bit and drilling rod.Such as, what drilling rod was arranged has internal thread, accordingly, arranges the external screw thread for the drilling rod that is spirally connected in boring centralizer main body one end.For another example, drill bit is provided with external screw thread, accordingly, the internal thread for the drill bit that is spirally connected is set in boring centralizer main body one end.
In still another embodiment of the process, cylindrical drilling rod can also be selected as boring centralizer main body, and drilling rod external surface welds multiple righting wing, and righting wing external surface is smooth arc-shaped surface, and cambered surface is coaxial with drilling rod external surface.
The boring centralizer provided due to above-described embodiment plays good centralizing function to drilling tool in the process of construction of drilling, and the external surface of the described righting wing is smooth arc-shaped surface, the Relative friction between centralizer and hole wall can be effectively reduced, can not be worn and torn hole wall, it not only ensure that boring can put in place according to designing requirement one-off construction, also avoid the generation that accident is scrapped in the boring caused because hole scattering is excessive, improve production efficiency of drilling.And the boring centralizer processing that above-described embodiment provides is simple and easy, easy to operate.
Also provide a kind of drilling tool in still another embodiment of the process, comprise drill bit and drilling rod, also comprise the boring centralizer be arranged between described drill bit and described drilling rod, described boring centralizer is the boring centralizer described in any embodiment.
The drilling tool that the present embodiment provides, under construction to layer-through drilling, long apart from have very effective guarantor directly to act on to the boring etc. that discharges water of layer-through drilling, extra long distance.It not only ensure that boring can put in place according to designing requirement one-off construction, also avoid the generation that accident is scrapped in the boring caused because hole scattering is excessive, improves production efficiency of drilling.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (7)
1. a boring centralizer, it is characterized in that, comprising: cylindrical boring centralizer main body, the external surface of described boring centralizer main body is provided with multiple righting wing, the external surface of the described righting wing is smooth arc-shaped surface, and described cambered surface is coaxial with the external surface of described boring centralizer main body.
2. boring centralizer according to claim 1, is characterized in that, the several righting wings be positioned in described multiple righting wing on same cross section form a righting wing group, and each righting wing in identical righting wing group is uniformly distributed.
3. boring centralizer according to claim 2, is characterized in that, the external surface of described boring centralizer main body is provided with at least two righting wing groups, and is spacedly distributed between each righting wing group.
4. according to the arbitrary described boring centralizer of claim 1-3, it is characterized in that, the described righting wing is welded on the external surface of described boring centralizer main body, or one-body molded with the main body of boring centralizer.
5., according to the arbitrary described boring centralizer of claim 1-3, it is characterized in that, one end of described boring centralizer main body is provided with the external screw thread for the drill bit that is spirally connected, and the other end is provided with the internal thread for the drilling rod that is spirally connected.
6. boring centralizer according to claim 3, is characterized in that, the external surface of described boring centralizer main body is provided with 3 righting wing groups, and each righting wing group comprises 3 righting wings.
7. a drilling tool, is characterized in that, comprises drill bit and drilling rod, also comprise be arranged between described drill bit and described drilling rod, as arbitrary in claim 1-6 as described in boring centralizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410449222.1A CN104265196A (en) | 2014-09-04 | 2014-09-04 | Drilling centralizer and drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410449222.1A CN104265196A (en) | 2014-09-04 | 2014-09-04 | Drilling centralizer and drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104265196A true CN104265196A (en) | 2015-01-07 |
Family
ID=52156756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410449222.1A Pending CN104265196A (en) | 2014-09-04 | 2014-09-04 | Drilling centralizer and drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104265196A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464124A (en) * | 2021-09-01 | 2021-10-01 | 东营市昌瑞石油机械配件有限责任公司 | Oil well shallow layer leakage finding device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5810100A (en) * | 1996-11-01 | 1998-09-22 | Founders International | Non-rotating stabilizer and centralizer for well drilling operations |
| CN203702024U (en) * | 2014-01-24 | 2014-07-09 | 北京捷贝通石油技术有限公司 | Novel rotatable drill rod centralizer |
| CN204139995U (en) * | 2014-09-04 | 2015-02-04 | 淮南矿业(集团)有限责任公司 | Boring centralizer and drilling tool |
-
2014
- 2014-09-04 CN CN201410449222.1A patent/CN104265196A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5810100A (en) * | 1996-11-01 | 1998-09-22 | Founders International | Non-rotating stabilizer and centralizer for well drilling operations |
| CN203702024U (en) * | 2014-01-24 | 2014-07-09 | 北京捷贝通石油技术有限公司 | Novel rotatable drill rod centralizer |
| CN204139995U (en) * | 2014-09-04 | 2015-02-04 | 淮南矿业(集团)有限责任公司 | Boring centralizer and drilling tool |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464124A (en) * | 2021-09-01 | 2021-10-01 | 东营市昌瑞石油机械配件有限责任公司 | Oil well shallow layer leakage finding device |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20150107 |