CN103821463A - Milling and descaling multi-purpose drilling tool - Google Patents
Milling and descaling multi-purpose drilling tool Download PDFInfo
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- CN103821463A CN103821463A CN201410084711.1A CN201410084711A CN103821463A CN 103821463 A CN103821463 A CN 103821463A CN 201410084711 A CN201410084711 A CN 201410084711A CN 103821463 A CN103821463 A CN 103821463A
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- milling
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Abstract
The invention discloses a milling and descaling multi-purpose drilling tool which is capable of effectively removing dirt on the inner wall of a casing. The milling and descaling multi-purpose drilling tool comprises an upper connector body connected with a drill pipe, a motor assembly connected with the lower end of the upper connector body, a universal shaft assembly connected with the lower end of the motor assembly, a drive shaft assembly connected with the lower end of the universal shaft assembly and a lower connector body connected with the lower end of the drive shaft assembly, the lower connector body is connected with a drill bit, and multiple radial milling blades are uniformly arranged on the outer side of the lower connector body. The milling and descaling multi-purpose drilling tool has the advantages of effectively removing the dirt on the inner wall of the casing in the drilling operation for milling and pigging, thus the service life of the casing is prolonged, the oil well output is increased, second drilling is not needed, the production cost is reduced, and the production efficiency is improved.
Description
Technical field
The present invention relates to a kind of oil exploitation machinery, refer more particularly to the multiplex drilling tool of a kind of milling scale removal.
Background technology
In Oil/gas Well manufacturing process, having grease, wax stone is attached on casing wall for a long time, after well cementing operation completes, internal surface of sleeve pipe often has concrete grey plug residual, in the time carrying out milling operation, just need to remove internal surface of sleeve pipe dirt, residue, and usual manner is that lower tubular column scraper is removed operation to down-hole, it is large that tubing string removes workload, scraping is inhomogeneous, and efficiency is low, also needs to descend drilling tool to carry out milling, drifting operation after having scraped again.
Summary of the invention
Technical problem to be solved by this invention is: a kind of multiplex drilling tool of milling scale removal that can effectively remove internal surface of sleeve pipe dirt is provided.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: the multiplex drilling tool of milling scale removal, comprise: the top connection body being connected with drilling rod, the motor assembly being connected with described top connection body lower end, the universal drive shaft assembly being connected with described motor assembly lower end, the driving-shaft assembly being connected with described universal drive shaft assembly lower end and the lower contact body being connected with described driving-shaft assembly lower end, described lower contact body is connected with drill bit, is evenly provided with some radially milling cutting inserts on the outside of described lower contact body.
In order to solve the problems of the technologies described above better, the further technical scheme that the present invention adopts is: be provided with and the mounting groove that radially scraping blade cooperatively interacts in the external side of described lower contact, described radially scraping blade is fixed on lower contact body by clamp nut.
In order to solve the problems of the technologies described above better, the further technical scheme that the present invention adopts is: at described lower contact body be radially provided with spring in the mounting groove between scraping blade.
In order to solve the problems of the technologies described above better, the further technical scheme that the present invention adopts is: on described lower contact body, be provided with four radially milling cutting inserts, described radially milling cutting insert is evenly distributed on the surrounding of lower contact body, and two upper, two under, mutually corresponding between two.
In order to solve the problems of the technologies described above better, the further technical scheme that the present invention adopts is: on the outside of described top connection body, be evenly provided with some axial milling cutting inserts.
In order to solve the problems of the technologies described above better, the further technical scheme that the present invention adopts is: be provided with in the external side of described top connection the mounting groove cooperatively interacting with axial milling cutting insert, the two ends up and down of described axial milling cutting insert are fixed on top connection body by trim ring and briquetting respectively.
In order to solve the problems of the technologies described above better, the further technical scheme that the present invention adopts is: in the mounting groove between described top connection body and axial milling cutting insert, be provided with spring.
In order to solve the problems of the technologies described above better, the further technical scheme that the present invention adopts is: on the outside of described top connection body, be evenly provided with three axial milling cutting inserts.
Advantage of the present invention is: the multiplex drilling tool of above-mentioned milling scale removal, under while creeping into row milling drifting operation, can effectively remove internal surface of sleeve pipe dirt, extending sleeve tube lifetime increases oil well output and does not need to bore under secondary, saves production cost, and has improved production efficiency.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of the multiplex drilling tool the first half of milling scale removal of the present invention.
Fig. 2 is the sectional structure schematic diagram of the multiplex drilling tool the latter half of milling scale removal of the present invention.
Fig. 3 be in Fig. 2 A to structural representation.
Fig. 4 is the mounting structure schematic diagram of Fig. 1 top connection body and axial milling cutting insert.
Fig. 5 is the structural representation of B-B direction in Fig. 4.
In figure: 1, top connection body, 2, motor assembly, 3, universal drive shaft assembly, 4, driving-shaft assembly, 5, lower contact body, 6, milling cutting insert radially, 7, mounting groove, 8, clamp nut, 9, spring, 10, axial milling cutting insert, 11, mounting groove, 12, trim ring, 13, briquetting, 14, spring, 15, spout hole, 16, rotor, 17, universal drive shaft, 18, power transmission shaft.
The specific embodiment
Describe in detail particular content of the present invention below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, the multiplex drilling tool of milling scale removal, comprise: the top connection body 1 being connected with drilling rod, the motor assembly 2 being connected with described top connection body 1 lower end, the universal drive shaft assembly 3 being connected with described motor assembly 2 lower ends, the driving-shaft assembly 4 being connected with described universal drive shaft assembly 3 lower ends and the lower contact body 5 being connected with described driving-shaft assembly 4 lower ends, described lower contact body 5 is connected with drill bit, is evenly provided with some radially milling cutting inserts 6 on the outside of described lower contact body 5.
As shown in Figure 2, in the present embodiment, at the described mounting groove 7 that lower contact body 5 arranged outside have with radially scraping blade 6 cooperatively interacts, described radially scraping blade 6 is fixed on lower contact body 5 by clamp nut 8.At described lower contact body 5 be radially provided with spring 9 in the mounting groove 7 between scraping blade 6.
As shown in Figure 2 and Figure 3, in the present embodiment, be provided with four radially milling cutting inserts 6 on described lower contact body 5, described radially milling cutting insert 6 is evenly distributed on the surrounding of lower contact body 5, and two upper, two under, mutually corresponding between two.
As shown in Figure 1, Figure 4, Figure 5, in the present embodiment, on the outside of described top connection body 1, be evenly provided with some axial milling cutting inserts 10.Have in described top connection body 1 arranged outside the mounting groove 11 cooperatively interacting with axial milling cutting insert 10, the two ends up and down of described axial milling cutting insert 10 are fixed on top connection body 1 by trim ring 12 and briquetting 13 respectively.In mounting groove 11 between described top connection body 1 and axial milling cutting insert 10, be provided with spring 14.On the outside of described top connection body 1, be evenly provided with three axial milling cutting inserts 10.
When the multiplex drilling tool work of above-mentioned milling scale removal, well liquid enters by the spout hole 15 in top connection body 1, the rotor 16 promoting in motor assembly 2 rotates, rotor 16 drives the universal drive shaft 17 in coupled universal drive shaft assembly 3 to rotate, universal drive shaft 17 drives driving-shaft assembly 4 intermediate solid drive shafts 18 that are connected with its lower end, power transmission shaft 18, drive the lower contact body 5 being connected with its lower end, radially milling cutting insert 6 on drill bit and the lower contact body 5 being connected with lower contact body 5 lower ends rotates, drilling tool is by having dirt, when the well section of wax stone, radially milling cutting insert 6 energy shavings fall to be attached to the wax stone of internal surface of sleeve pipe, crystalline thing, under the effect of spring 9, radially milling cutting insert 6 can change diameter, be easy to by the sleeve pipe because of fouling became uneven and carry out shaving, scale removal, top connection body 1 arranged outside has with axial milling cutting insert 10 can axially cut milling internal surface of sleeve pipe wax stone, dirt, under the effect of spring 14, axially milling cutting insert 10 also can change diameter, can axially cut like this milling internal surface of sleeve pipe wax stone, dirt, again can be radially even milling wall wax stone, dirt.As the well section that dirt seriously cannot pass through, the dirt of the direct milling wax deposition of drill bit of lower end, when attachment removing hook drilling tool is located in to ash plug, bridging plug and other operation fish, drill bit carries out milling operation.So just can reach a lower tubular column and carry out the multi-mode operations such as sleeve pipe wax removal, scale removal, drifting, milling, the raising cost of production that saves production cost, and can prevent repeatedly lower oil tube and pollute raised platform around a well.When the multiplex drilling tool of above-mentioned milling scale removal carries out service shaft milling operation, do not need first lower tubular column dirty cleaning tool to remove the internal surface of sleeve pipe that has dirt, when lower brill, not only can axially remove the dirty thing on internal surface of sleeve pipe, and can radially remove internal surface of sleeve pipe dirt, so just realize and once played oil pipe, the tubing strings such as drilling rod, carry out scale removal with drilling tool simultaneously, wax removal, drifting, the multi-mode operations such as milling, effectively protective casing, increase the service life, save production cost simultaneously, remove clean than conventional scraper, thoroughly, when internal surface of sleeve pipe wax stone is serious, the direct milling of drilling tool lower end drill bit, efficiency is higher.
Claims (8)
1. the multiplex drilling tool of milling scale removal, comprise: the top connection body (1) being connected with drilling rod, the motor assembly (2) being connected with described top connection body (1) lower end, the universal drive shaft assembly (3) being connected with described motor assembly (2) lower end, the driving-shaft assembly (4) being connected with described universal drive shaft assembly (3) lower end and the lower contact body (5) being connected with described driving-shaft assembly (4) lower end, described lower contact body (5) is connected with drill bit, it is characterized in that: on the outside of described lower contact body (5), be evenly provided with some radially milling cutting inserts (6).
2. according to the multiplex drilling tool of milling scale removal claimed in claim 1, it is characterized in that: at the described mounting groove (7) that lower contact body (5) arranged outside has with radially scraping blade (6) cooperatively interacts, described radially scraping blade (6) is fixed on lower contact body (5) by clamp nut (8).
3. according to the multiplex drilling tool of milling scale removal claimed in claim 2, it is characterized in that: at described lower contact body (5) be radially provided with spring (9) in the mounting groove (7) between scraping blade (6).
4. according to the multiplex drilling tool of milling scale removal claimed in claim 3, it is characterized in that: on described lower contact body (5), be provided with four radially milling cutting inserts (6), described radially milling cutting insert (6) is evenly distributed on the surrounding of lower contact body (5), two upper, two under, mutually corresponding between two.
5. according to the multiplex drilling tool of milling scale removal claimed in claim 4, it is characterized in that: on the outside of described top connection body (1), be evenly provided with some axial milling cutting inserts (10).
6. according to the multiplex drilling tool of milling scale removal claimed in claim 5, it is characterized in that: have in described top connection body (1) arranged outside the mounting groove (11) cooperatively interacting with axial milling cutting insert (10), the two ends up and down of described axial milling cutting insert (10) are fixed on top connection body (1) by trim ring (12) and briquetting (13) respectively.
7. according to the multiplex drilling tool of milling scale removal claimed in claim 6, it is characterized in that: in the mounting groove (11) between described top connection body (1) and axial milling cutting insert (10), be provided with spring (14).
8. according to the multiplex drilling tool of milling scale removal claimed in claim 7, it is characterized in that: on the outside of described top connection body (1), be evenly provided with three axial milling cutting inserts (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410084711.1A CN103821463A (en) | 2014-03-10 | 2014-03-10 | Milling and descaling multi-purpose drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410084711.1A CN103821463A (en) | 2014-03-10 | 2014-03-10 | Milling and descaling multi-purpose drilling tool |
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| Publication Number | Publication Date |
|---|---|
| CN103821463A true CN103821463A (en) | 2014-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410084711.1A Pending CN103821463A (en) | 2014-03-10 | 2014-03-10 | Milling and descaling multi-purpose drilling tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915075A (en) * | 2019-04-19 | 2019-06-21 | 新疆华油油气工程有限公司 | The downhole tool of logical function is scraped with milling |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4189000A (en) * | 1978-06-26 | 1980-02-19 | Best David M | Casing scraper |
| US20040007355A1 (en) * | 2002-03-13 | 2004-01-15 | Hern Gregory Lee | Convertible tubular scraper |
| US20050205252A1 (en) * | 2004-03-11 | 2005-09-22 | Smith International, Inc. | Casing scraper |
| CN1886573A (en) * | 2003-11-28 | 2006-12-27 | 国际壳牌研究有限公司 | Drill bit with protection member |
| CN2898285Y (en) * | 2006-05-19 | 2007-05-09 | 东营市科信石油机械设备有限公司 | Two-purpose equipment for cleaning pipe and pigging |
| CN201826811U (en) * | 2010-10-12 | 2011-05-11 | 谢照宽 | Drifting scraping device |
| CN202117633U (en) * | 2011-06-10 | 2012-01-18 | 中国石油天然气股份有限公司 | Multifunctional casing scraper |
| CN202544754U (en) * | 2012-05-07 | 2012-11-21 | 盐城华亚石油机械制造有限公司 | Screw drilling tool |
| CN202832394U (en) * | 2012-08-08 | 2013-03-27 | 宝鸡瑞通石油机械有限公司 | Novel hydraulic scraper for all-in-one operation |
| CN203716868U (en) * | 2014-03-10 | 2014-07-16 | 盐城华亚石油机械制造有限公司 | Multipurpose drilling tool for milling and dirt removal |
-
2014
- 2014-03-10 CN CN201410084711.1A patent/CN103821463A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4189000A (en) * | 1978-06-26 | 1980-02-19 | Best David M | Casing scraper |
| US20040007355A1 (en) * | 2002-03-13 | 2004-01-15 | Hern Gregory Lee | Convertible tubular scraper |
| CN1886573A (en) * | 2003-11-28 | 2006-12-27 | 国际壳牌研究有限公司 | Drill bit with protection member |
| US20050205252A1 (en) * | 2004-03-11 | 2005-09-22 | Smith International, Inc. | Casing scraper |
| CN2898285Y (en) * | 2006-05-19 | 2007-05-09 | 东营市科信石油机械设备有限公司 | Two-purpose equipment for cleaning pipe and pigging |
| CN201826811U (en) * | 2010-10-12 | 2011-05-11 | 谢照宽 | Drifting scraping device |
| CN202117633U (en) * | 2011-06-10 | 2012-01-18 | 中国石油天然气股份有限公司 | Multifunctional casing scraper |
| CN202544754U (en) * | 2012-05-07 | 2012-11-21 | 盐城华亚石油机械制造有限公司 | Screw drilling tool |
| CN202832394U (en) * | 2012-08-08 | 2013-03-27 | 宝鸡瑞通石油机械有限公司 | Novel hydraulic scraper for all-in-one operation |
| CN203716868U (en) * | 2014-03-10 | 2014-07-16 | 盐城华亚石油机械制造有限公司 | Multipurpose drilling tool for milling and dirt removal |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915075A (en) * | 2019-04-19 | 2019-06-21 | 新疆华油油气工程有限公司 | The downhole tool of logical function is scraped with milling |
| CN109915075B (en) * | 2019-04-19 | 2021-04-13 | 新疆华油油气工程有限公司 | Downhole tool with milling and scraping functions |
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Application publication date: 20140528 |