CN105041219A - Large-caliber stepped combined drill - Google Patents
Large-caliber stepped combined drill Download PDFInfo
- Publication number
- CN105041219A CN105041219A CN201510544392.2A CN201510544392A CN105041219A CN 105041219 A CN105041219 A CN 105041219A CN 201510544392 A CN201510544392 A CN 201510544392A CN 105041219 A CN105041219 A CN 105041219A
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- Prior art keywords
- reaming
- drill
- master
- main
- flushing liquor
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Abstract
The invention discloses a large-caliber stepped combined drill. The large-caliber stepped combined drill comprises a connecting main shaft, a first-stage drilling and reaming device, a second-stage drilling and reaming device and a third-stage drilling and reaming device, wherein a main drill collar is arranged on the connecting main shaft, and the first-stage drilling and reaming device, the second-stage drilling and reaming device and the third-stage drilling and reaming device are arranged on the connecting main shaft and the main drill collar. The first-stage drilling and reaming device comprises a main disc connected with the main drill collar, and eighteen tooth palms are arranged on the main disc in an unequally spaced mode. The second-stage drilling and reaming device comprises a flushing fluid distribution cavity connected with the main disc, nine tooth palms are distributed on the flushing fluid distribution cavity in an unequally spaced mode, and three nozzles are further arranged on the flushing fluid distribution cavity. The third-stage drilling and reaming device comprises a guiding hole milling drill, and the lower portion of the guiding hole milling drill is connected with a three-wing taper scraper. The large-caliber stepped combined drill is efficient, economical and safe and meets the requirement for large-caliber well drilling.
Description
Technical field
The present invention relates to gas tube drilling well industry, be specifically related to a kind of heavy caliber staged combined drill.
Background technology
The reaming bit that Large Diameter Gas Discharging well construction uses generally is combined drill, is installed on main drill collar after processing by several bit leg, be provided with starter before drill bit by welding, and drill bit connection mostly is and is threaded.Large diameter bit is comparatively large due to diameter, and easily damages, and each unit is oneself design processing substantially all, but the quality of design processing is uneven, and a bit deficient in just may affect drilling depth, even causes drilling accident.Particularly the well that the similar diameter of piping shaft is greater than 1 meter is taken out for gas, the pressure of the drill, moment of torsion are all larger, performance requirement for drill bit is high, design bad, process badly as easy as rolling off a logly cause bit leg to come off, the situation such as bit balling, inner hole deposition shallow lake rock dust, therefore need the drill bit designing a kind of high-efficiency and economic safety to meet the needs of heavy caliber drilling well.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of heavy caliber staged combined drill, this drill bit high-efficiency and economic safety, meets the needs of heavy caliber drilling well.
Technical problem to be solved by this invention realizes by the following technical solutions:
Heavy caliber staged combined drill, is characterized in that: it comprises connection main shaft, and described connection main shaft is provided with main drill collar, and is arranged on the one-level brill reaming connected on main shaft and main drill collar, the reaming of secondary brill, the reaming of three grades of brills; Described one-level is bored reaming and is comprised the master be connected with main drill collar, and on described master, Unequal distance is disposed with 18 bit legs; The reaming of described secondary brill comprises the flushing liquor be connected with master and shunts cavity, and on described flushing liquor shunting cavity, unequally distributed blades is provided with nine bit legs, and described flushing liquor shunting cavity is also provided with three nozzles; The reaming of described three grades of brills comprises guiding hole milling drill bit, connects three wings tapering scraper under described guiding hole milling drill bit.
As optimal technical scheme, described heavy caliber staged combined drill also comprises the upper flange connected with being connected main shaft.
As optimal technical scheme, the master that described and main drill collar are connected also is processed with gauge is carried on the back, eddy flow drag reduction mouth and three return mouth.
As optimal technical scheme, shunt cavity at the described flushing liquor be connected with master and be processed with gauge and carry on the back and jet orifice, and be also provided with the six vertical gauge alloy bars in road at flushing liquor shunting cavity.
As optimal technical scheme, there is gauge alloy at the outer welding-on of described guiding hole milling drill bit.
As optimal technical scheme, described one-level bores the master of reaming, the guiding hole milling drill bit entirety of flushing liquor shunting cavity and the reaming of three grades of brills that secondary bores reaming is all welded on the main drill collar connected with being connected main shaft, and is all processed with water hole on described master, flushing liquor shunting cavity, guiding hole milling drill bit.
Further, described upper flange adopts high-strength bolt and to be connected main shaft connected.
The invention has the beneficial effects as follows:
1) easy to use, simple to operate, safety factor is high, long service life;
2) three grades are adopted to bore reaming, and bore in reaming at every grade and corresponding instrument is all set, greatly enhance the equipment carrying complexity of working environment and the raising of operating efficiency, and operation is stable very good, high-efficiency and economic safety, meets the needs of heavy caliber drilling well;
3) easy installation and removal, is beneficial to more bit change, applied widely, and save the activity duration, security reliability is strong.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is that one-level of the present invention bores reaming cross section structure schematic diagram;
Fig. 3 is that secondary of the present invention bores reaming cross section structure schematic diagram;
Fig. 4 is that the present invention three grades bores reaming cross section structure schematic diagram;
Fig. 5 is the cross section structure schematic diagram of main drill collar;
In figure: 1-connects main shaft; The main drill collar of 2-; 3-one-level bores reaming; 4-secondary bores reaming; 41-flushing liquor shunting cavity; 5-tri-grades bores reaming; 6-master; 7-bit leg; 8-gauge is carried on the back; 9-eddy flow drag reduction mouth; 10-jet orifice; 11-guiding hole milling drill bit; 12-gauge alloy; 13-three wings tapering scraper; 14-water hole; 15-upper flange; 16-returns mouth; 17-nozzle; 18-gauge alloy bar; 19-high-strength bolt.
Detailed description of the invention
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
Embodiment
As Figure 1-5:
Heavy caliber staged combined drill, it comprises and connects main shaft 1, connects main shaft 1 and is provided with main drill collar 2, and the one-level be arranged on connection main shaft 1 and main drill collar 2 bores reaming 3, secondary bores reaming 4, three grades and bores reaming 5; One-level is bored reaming 3 and is comprised the master 6 be connected with main drill collar 2, and on master 6, Unequal distance is disposed with 18 bit legs 7; The reaming 4 of secondary brill comprises the flushing liquor be connected with master 6 and shunts cavity 41, and on flushing liquor shunting cavity 41, unequally distributed blades is provided with nine bit legs 7, and flushing liquor shunting cavity 41 is also provided with three nozzles 17; Three grades are bored reaming 5 and comprise guiding hole milling drill bit 11, guiding hole milling drill bit 11 times company's three wings tapering scrapers 13; During operation, on the master 6 that main drill collar 2 is connected, the bit leg 7 of welding has cutting, grinding, gauge concurrently, and bears the function of repetition fragmentation, and its working environment is comparatively complicated, and the welding process requirement for bit leg 7 is comparatively careful and precise; Be welded on the bit leg 7 on flushing liquor shunting cavity 41, achieve the crag cutting being greater than pilot hole, fragmentation, wherein, nozzle, plays and cools bit leg 7, rinse, the effect of anti-mud parcel bit leg; The outer welding-on gauge alloy 12 of guiding hole milling drill bit 11 of three grades, and lower even three wings tapering scraper 13, its effect ensures along pilot hole descending, stablizes drilling tool effect.
Heavy caliber staged combined drill also comprises and the upper flange 15 being connected main shaft 1 and being connected, and upper flange 15 adopts high-strength bolt 19 and is connected main shaft 1 and is connected, for convenience detach, connection, be beneficial to more bit change, save time, safe and reliable.
The master 6 be connected with main drill collar 2 is also processed with gauge carries on the back 8, eddy flow drag reduction mouth 9 and three return mouth 16; Shunt at the flushing liquor be connected with master 6 and cavity 41 is processed with gauge carries on the back 8 and jet orifice 10, and be also provided with the six vertical gauge alloy bars 18 in road at flushing liquor shunting cavity 41; Gauge alloy 12 is had at the outer welding-on of guiding hole milling drill bit 11.
Wherein, the six vertical gauge alloy bars 18 in road, play stable drilling tool, reduce because rotating the swing produced, and tool gauge, finishing hole wall effect; Inner chamber is to bulk detritus, and unexpected object has storage effect, three on overall chamber (master 6 and main drill collar 2 on) is returned mouth 16, effectively can pass through bulk landwaste.
One-level bores the master 6 of reaming 3, guiding hole milling drill bit 11 entirety of flushing liquor shunting cavity 41 and the reaming 5 of three grades of brills that secondary bores reaming 4 are all welded on the main drill collar 2 connected with being connected main shaft 1, and are all processed with water hole 14 on master 6, flushing liquor shunting cavity 41, guiding hole milling drill bit 11.
Wherein, integral solder is on main drill collar 2, and flushing liquor part can fully be passed through, and reaches the sedimental grinding of bottom pilot hole, flushing and to the cooling of drill bit, lubrication.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and manual just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (6)
1. heavy caliber staged combined drill, is characterized in that: it comprises connection main shaft, and described connection main shaft is provided with main drill collar, and is arranged on the one-level brill reaming connected on main shaft and main drill collar, the reaming of secondary brill, the reaming of three grades of brills; Described one-level is bored reaming and is comprised the master be connected with main drill collar, and on described master, Unequal distance is disposed with 18 bit legs; The reaming of described secondary brill comprises the flushing liquor be connected with master and shunts cavity, and on described flushing liquor shunting cavity, unequally distributed blades is provided with nine bit legs, and described flushing liquor shunting cavity is also provided with three nozzles; The reaming of described three grades of brills comprises guiding hole milling drill bit, connects three wings tapering scraper under described guiding hole milling drill bit.
2. heavy caliber staged combined drill according to claim 1, is characterized in that: described heavy caliber staged combined drill also comprises and the upper flange being connected main shaft and being connected.
3. heavy caliber staged combined drill according to claim 1, is characterized in that: on the master that described and main drill collar are connected, be also processed with that gauge is carried on the back, eddy flow drag reduction mouth and three return mouth.
4. heavy caliber staged combined drill according to claim 1, is characterized in that: shunt cavity at the described flushing liquor be connected with master and be processed with gauge and carry on the back and jet orifice, and be also provided with the six vertical gauge alloy bars in road at flushing liquor shunting cavity.
5. heavy caliber staged combined drill according to claim 1, is characterized in that: have gauge alloy at the outer welding-on of described guiding hole milling drill bit.
6. heavy caliber staged combined drill according to claim 1, it is characterized in that: described one-level bores the master of reaming, the guiding hole milling drill bit entirety of flushing liquor shunting cavity and the reaming of three grades of brills that secondary bores reaming is all welded on the main drill collar connected with being connected main shaft, and is all processed with water hole on described master, flushing liquor shunting cavity, guiding hole milling drill bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510544392.2A CN105041219A (en) | 2015-08-27 | 2015-08-27 | Large-caliber stepped combined drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510544392.2A CN105041219A (en) | 2015-08-27 | 2015-08-27 | Large-caliber stepped combined drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105041219A true CN105041219A (en) | 2015-11-11 |
Family
ID=54448143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510544392.2A Pending CN105041219A (en) | 2015-08-27 | 2015-08-27 | Large-caliber stepped combined drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105041219A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109184572A (en) * | 2018-09-19 | 2019-01-11 | 邹城兖矿泰德工贸有限公司 | Bimetal wear resistant reamer |
| CN115822464A (en) * | 2022-12-23 | 2023-03-21 | 华北水利水电大学 | Geological exploration reaming device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1082138A (en) * | 1992-02-17 | 1994-02-16 | 克维恩兰德·克莱普有限公司 | The Tapper that is used for oil/gas well mouth |
| CN201152147Y (en) * | 2008-01-28 | 2008-11-19 | 三原石油钻头厂 | Multilevel tower type engineering drill head |
| CN201448058U (en) * | 2009-08-04 | 2010-05-05 | 西安科技大学 | Bottom blowout stepped PDC coal fetching drill bit |
| CN201627535U (en) * | 2010-03-05 | 2010-11-10 | 秦长江 | Secondary reaming drainage bit |
| CN102071876A (en) * | 2011-01-13 | 2011-05-25 | 河南理工大学 | Multistage reducing combined drilling tool |
| CN102654025A (en) * | 2011-03-04 | 2012-09-05 | 天津立林钻头有限公司 | Wear-resistance side tooth gauge-protection reamer |
| CN202611596U (en) * | 2012-04-16 | 2012-12-19 | 朱宝顺 | Stepped guide type coreless drill |
| CN205047158U (en) * | 2015-08-27 | 2016-02-24 | 淮北矿业（集团）勘探工程有限责任公司 | Cascaded combined drill of heavy -calibre |
-
2015
- 2015-08-27 CN CN201510544392.2A patent/CN105041219A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1082138A (en) * | 1992-02-17 | 1994-02-16 | 克维恩兰德·克莱普有限公司 | The Tapper that is used for oil/gas well mouth |
| CN201152147Y (en) * | 2008-01-28 | 2008-11-19 | 三原石油钻头厂 | Multilevel tower type engineering drill head |
| CN201448058U (en) * | 2009-08-04 | 2010-05-05 | 西安科技大学 | Bottom blowout stepped PDC coal fetching drill bit |
| CN201627535U (en) * | 2010-03-05 | 2010-11-10 | 秦长江 | Secondary reaming drainage bit |
| CN102071876A (en) * | 2011-01-13 | 2011-05-25 | 河南理工大学 | Multistage reducing combined drilling tool |
| CN102654025A (en) * | 2011-03-04 | 2012-09-05 | 天津立林钻头有限公司 | Wear-resistance side tooth gauge-protection reamer |
| CN202611596U (en) * | 2012-04-16 | 2012-12-19 | 朱宝顺 | Stepped guide type coreless drill |
| CN205047158U (en) * | 2015-08-27 | 2016-02-24 | 淮北矿业（集团）勘探工程有限责任公司 | Cascaded combined drill of heavy -calibre |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109184572A (en) * | 2018-09-19 | 2019-01-11 | 邹城兖矿泰德工贸有限公司 | Bimetal wear resistant reamer |
| CN115822464A (en) * | 2022-12-23 | 2023-03-21 | 华北水利水电大学 | Geological exploration reaming device |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151111 |