CN204782745U - Reverse circulation combined drilling tool - Google Patents
Reverse circulation combined drilling tool Download PDFInfo
- Publication number
- CN204782745U CN204782745U CN201520522680.3U CN201520522680U CN204782745U CN 204782745 U CN204782745 U CN 204782745U CN 201520522680 U CN201520522680 U CN 201520522680U CN 204782745 U CN204782745 U CN 204782745U
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- CN
- China
- Prior art keywords
- drilling rod
- reverse circulation
- calming
- anger
- gauge
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- 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.)
- Expired - Fee Related
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Abstract
A reverse circulation combined drilling tool comprises an air compression drill rod connected with a double-wall drill rod, a reverse circulation joint and a gauge protection drill rod connected with a drill bit, wherein the air compression drill rod is provided with an inner pipe and an outer pipe, an air filling channel is arranged between the inner pipe and the outer pipe, an air compression ring matched with a drill hole gap is arranged on the outer wall of the outer pipe of the air compression drill rod, and a gauge protection boss for preventing the reverse circulation joint from being excessively worn and ensuring a certain space below the reverse circulation joint is arranged on the outer wall of the gauge protection drill rod. The air compression ring comprises a fixed ring and a movable ring. Realize the consumption that the new pressurized gas drilling rod of small-bore air reverse circulation continuous sampling probing reduced the air quantity, reverse circulation connects for the novel structural style of toper kuppe with spiral rock powder inflow passageway, guarantees that the unobstructed high-efficient entering center tube of rock powder discharges, adds the drill rod of guarantor's footpath down, when guaranteeing the drill rod aperture, prevents the excessive wearing and tearing of reverse circulation joint. The good effect of small-caliber air reverse circulation continuous sampling is ensured through the drilling tool assembly and the structural innovation.
Description
Technical field
The present invention relates to a kind of exploration engineering field, particularly a kind of reacting cycle way-type drilling unit.
Background technology
Since the enforcement period of the seventh five-year plan, China has carried out the research and development of small-bore Air Reverse Circulation continuous sampling technology, achieve noticeable achievement, to the overall drilling technique level of raising China, solve a drought and water-scarce area drilling technique difficult problem, have accumulated rich experience, the small-bore Air Reverse Circulation technique that double-walled counter circulation drill rod and hollow hammer hole combine reaches its maturity, but use double-walled counter circulation drill rod unsatisfactory all the time by its reacting cycle effect of combination reverse circulation sub and rock bit or direct circulation impactor occur being formed, reacting cycle is formed at whole boring drilling assembly reverse circulation sub top, local direct circulation is formed at bottom.
Summary of the invention
The technical problem to be solved in the present invention is for the deficiencies in the prior art, and propose one and be applicable to small-bore Air Reverse Circulation continuous sampling drilling condition, reacting cycle samples respond well reacting cycle way-type drilling unit.
The technical problem to be solved in the present invention is achieved through the following technical solutions, a kind of reacting cycle way-type drilling unit, be characterized in: comprise the drilling rod of calming the anger, reverse circulation sub, the gauge drilling rod that connects with drill bit that connect with double-wall drill pipe, drilling rod of calming the anger is provided with inner and outer tubes, aerating passage is set between inner and outer pipes, the outer tube outer wall of drilling rod of calming the anger is provided with the ring of calming the anger mated with borehole standoff, the outer wall of gauge drilling rod is provided with gauge boss, and the maximum radius of gyration of gauge boss is less than or equal to the radius of gyration of drill bit.
The technical problem to be solved in the present invention can also be come to realize further by the following technical programs, and the some blocks of carbide alloy that described gauge boss is welded by the axis along gauge drilling rod are formed.
The technical problem to be solved in the present invention can also be come to realize further by the following technical programs, and on the outer wall of gauge drilling rod, symmetry is provided with two gauge boss.
The technical problem to be solved in the present invention can also be come to realize further by the following technical programs, described in ring of calming the anger comprise at least two retainer rings be fixedly connected with the outer tube of drilling rod of calming the anger, between two often adjacent retainer rings, be equipped with a loose collar.
The technical problem to be solved in the present invention can also be come to realize further by the following technical programs, and the external diameter of loose collar is less than or equal to the external diameter of retainer ring.
The technical problem to be solved in the present invention can also be come to realize further by the following technical programs, described reverse circulation sub comprises the lower linkage section connected with gauge drilling rod, and the upper linkage section to connect with drilling rod of calming the anger, the external diameter of lower linkage section is than bit diameter extremely when young 5mm, the upper end of lower linkage section is set to the water conservancy diversion cone of hollow, upper linkage section comprises the air chamber communicated with the aerating passage of drilling rod of calming the anger, and connection chamber in connecting with pipe in drilling rod of calming the anger, changeover portion is provided with between the bottom of upper linkage section and lower linkage section, spiral aerating passage and rock dust flow channel is provided with in the inside of changeover portion, aerating passage upwards communicates with above-mentioned air chamber, aerating passage communicates with the pyramidal inner chamber of water conservancy diversion downwards, rock dust flow channel upwards communicates with interior connection chamber, the lower port of rock dust flow channel is arranged downwards along the external wall of water conservancy diversion taper.
The technical problem to be solved in the present invention can also be come to realize further by the following technical programs, and drill bit is rock bit or direct circulation impactor.
The present invention compared with prior art, change the combining form of combining form for drilling rod of calming the anger+reverse circulation sub+guide rod+rock bit (direct circulation impactor) of original reverse circulation sub+rock bit (direct circulation impactor), realize the consumption that small-bore Air Reverse Circulation continuous sampling probing new pressurization pneumatic drill bar reduces air capacity, reverse circulation sub is the new structure that conical flow guiding cover adds spiral rock dust flow channel, ensure that the unobstructed central tube that efficiently enters of rock dust is discharged, under add gauge drilling rod, while guarantee drilling rod aperture, prevent reverse circulation sub excessive wear.The good result of small-bore Air Reverse Circulation continuous sampling is ensured by above drilling assembly and structure innovation.
Accompanying drawing explanation
Fig. 1 is structure diagram of the present invention;
Fig. 2 is jackrod structure sketch of calming the anger;
Fig. 3 is reverse circulation sub structure diagram;
Fig. 4 is that the A-A of Fig. 2 is to sectional view;
Fig. 5 is gauge jackrod structure sketch.
Detailed description of the invention
A kind of reacting cycle way-type drilling unit, comprises the drilling rod 1 of calming the anger, reverse circulation sub 2, the gauge drilling rod 3 that connects with drill bit that connect with double-wall drill pipe.Realize respond well reverse circulation drilling.
Drilling rod of calming the anger is provided with interior pipe 6 and outer tube 7, aerating passage is set between inner and outer pipes, the outer tube outer wall of drilling rod of calming the anger is provided with the ring of calming the anger mated with borehole standoff, described ring of calming the anger comprises at least two retainer rings 4 be fixedly connected with the outer tube of drilling rod of calming the anger, between two often adjacent retainer rings, be equipped with a loose collar 5.The external diameter of loose collar 5 is less than or equal to the external diameter of retainer ring 4.
Ring of calming the anger consumes to reduce between air pressure, tolerance hole wall, is provided with loose collar between retainer ring, ensures that space is unimpeded, prevents rock dust from blocking.
The outer wall of gauge drilling rod 3 is provided with gauge boss 13, and the maximum radius of gyration of gauge boss 13 is less than or equal to the radius of gyration of drill bit.The some blocks of carbide alloy that described gauge boss 13 is welded by the axis along gauge drilling rod are formed.Can be symmetrical on the outer wall of gauge drilling rod be provided with two gauge boss.
Prevent reverse circulation sub excessive wear, and ensure there is certain space below reverse circulation sub, guarantee reverse circulating realization.
Described reverse circulation sub 2 comprises the lower linkage section 8 connected with gauge drilling rod, and the upper linkage section 10 to connect with drilling rod of calming the anger, the external diameter of lower linkage section is than bit diameter extremely when young 5mm, the upper end of lower linkage section 8 is set to the water conservancy diversion cone of hollow, upper connection 10 sections comprises the air chamber communicated with the aerating passage of drilling rod of calming the anger, and connection chamber in connecting with pipe in drilling rod of calming the anger, changeover portion 9 is provided with between the bottom of upper linkage section and lower linkage section, spiral aerating passage 12 and rock dust flow channel 11 is provided with in the inside of changeover portion 9, aerating passage upwards communicates with above-mentioned air chamber, aerating passage communicates with the pyramidal inner chamber of water conservancy diversion downwards, rock dust flow channel upwards communicates with interior connection chamber, the lower port of rock dust flow channel is arranged downwards along the external wall of water conservancy diversion taper.
Be local direct circulation at the bottom of reverse circulation sub bottom to hole, the Air Reverse Circulation continuous sampling of reverse circulation sub top to aperture.
The air of compressor compresses arrives reverse circulation sub through drilling rod of calming the anger, foot of hole is entered by gauge drilling rod, drill bit, air direct circulation is realized below reverse circulation sub, the air returned carries rock sample and enters pipe in double-wall drill pipe, bend pipe, row's powder flexible pipe, cyclone arrival earth's surface by the rock dust flow channel of reverse circulation sub, realize small-bore Air Reverse Circulation continuous sampling probing, the rock dust flow channel of reverse circulation sub is helical duct, the design of conical flow guiding cover to be to ensure that air carries that rock dust is smooth and easy enters interior pipe.Described drill bit is rock bit or direct circulation impactor.
Claims (7)
1. a reacting cycle way-type drilling unit, it is characterized in that: comprise the drilling rod of calming the anger, reverse circulation sub, the gauge drilling rod that connects with drill bit that connect with double-wall drill pipe, drilling rod of calming the anger is provided with inner and outer tubes, aerating passage is set between inner and outer pipes, the outer tube outer wall of drilling rod of calming the anger is provided with ring of calming the anger, the outer wall of gauge drilling rod is provided with gauge boss.
2. reacting cycle way-type drilling unit according to claim 1, is characterized in that: the some blocks of carbide alloy that described gauge boss is welded by the axis along gauge drilling rod are formed, and the maximum radius of gyration of gauge boss is less than or equal to the radius of gyration of drill bit.
3. reacting cycle way-type drilling unit according to claim 1 and 2, is characterized in that: on the outer wall of gauge drilling rod, symmetry is provided with two gauge boss.
4. reacting cycle way-type drilling unit according to claim 1, is characterized in that: described in ring of calming the anger comprise at least two retainer rings be fixedly connected with the outer tube of drilling rod of calming the anger, between two often adjacent retainer rings, be equipped with a loose collar.
5. reacting cycle way-type drilling unit according to claim 4, is characterized in that: the external diameter of loose collar is less than or equal to the external diameter of retainer ring.
6. reacting cycle way-type drilling unit according to claim 1, it is characterized in that: described reverse circulation sub comprises the lower linkage section connected with gauge drilling rod, and the upper linkage section to connect with drilling rod of calming the anger, the external diameter of lower linkage section is than bit diameter extremely when young 5mm, the upper end of lower linkage section is set to the water conservancy diversion cone of hollow, upper linkage section comprises the air chamber communicated with the aerating passage of drilling rod of calming the anger, and connection chamber in connecting with pipe in drilling rod of calming the anger, changeover portion is provided with between the bottom of upper linkage section and lower linkage section, spiral aerating passage and rock dust flow channel is provided with in the inside of changeover portion, aerating passage upwards communicates with above-mentioned air chamber, aerating passage communicates with the pyramidal inner chamber of water conservancy diversion downwards, rock dust flow channel upwards communicates with interior connection chamber, the lower port of rock dust flow channel is arranged downwards along the external wall of water conservancy diversion taper.
7. reacting cycle way-type drilling unit according to claim 1, is characterized in that: drill bit is rock bit or direct circulation impactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520522680.3U CN204782745U (en) | 2015-07-20 | 2015-07-20 | Reverse circulation combined drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520522680.3U CN204782745U (en) | 2015-07-20 | 2015-07-20 | Reverse circulation combined drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204782745U true CN204782745U (en) | 2015-11-18 |
Family
ID=54522814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520522680.3U Expired - Fee Related CN204782745U (en) | 2015-07-20 | 2015-07-20 | Reverse circulation combined drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204782745U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672894A (en) * | 2016-03-09 | 2016-06-15 | 成都聚智工业设计有限公司 | Petroleum drilling drill bit |
| CN107701123A (en) * | 2017-11-29 | 2018-02-16 | 河北天理环保科技有限公司 | A kind of air drilling double-wall drill rod reverse circulation crossover sub |
| CN111411896A (en) * | 2020-03-26 | 2020-07-14 | 成都理工大学 | Drill bit for petroleum geological exploration |
-
2015
- 2015-07-20 CN CN201520522680.3U patent/CN204782745U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672894A (en) * | 2016-03-09 | 2016-06-15 | 成都聚智工业设计有限公司 | Petroleum drilling drill bit |
| CN107701123A (en) * | 2017-11-29 | 2018-02-16 | 河北天理环保科技有限公司 | A kind of air drilling double-wall drill rod reverse circulation crossover sub |
| CN111411896A (en) * | 2020-03-26 | 2020-07-14 | 成都理工大学 | Drill bit for petroleum geological exploration |
| CN111411896B (en) * | 2020-03-26 | 2021-06-25 | 成都理工大学 | Drill bit for petroleum geological exploration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20160720 |