CN104234631B - Forward-reaming drilling tool for lithostratigraphic directional drilling crossing - Google Patents
Forward-reaming drilling tool for lithostratigraphic directional drilling crossing Download PDFInfo
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- CN104234631B CN104234631B CN201310231638.1A CN201310231638A CN104234631B CN 104234631 B CN104234631 B CN 104234631B CN 201310231638 A CN201310231638 A CN 201310231638A CN 104234631 B CN104234631 B CN 104234631B
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Abstract
The invention discloses a forward-reaming drilling tool for lithostratigraphic directional drilling crossing and belongs to the field of oil exploitation. The forward-reaming drilling tool comprises a power drilling tool, a central postioner, a reamer and a guide head, wherein the power drilling tool is sleeved with the central postioner in threaded connection with the power drilling tool, the power drilling tool, the reamer and the guide head are sequentially connected, the reamer comprises a reamer body, a reamer mandrel, a reamer water channel, a reamer cone and a water nozzle, the reamer body is in welding connection with the reamer mandrel, and the reamer water channel, the reamer cone and the water nozzle are arranged on the reamer body. On the basis of original reaming drilling tool combination, the forward-reaming drilling tool provides power through the power drilling tool, performs centralization through the central postioner and provides guide through the guide head, the situation that a drill rod is severely abraded by a hole wall in complicated geological pipeline directional drilling crossing can be effectively deceased or avoided, the service life of the drill rod is prolonged, the construction speed is improved, a construction period is shortened, the construction cost is reduced, and the economic input is reduced.
Description
Technical field
The present invention relates to oil field, particularly to a kind of lithostratigraphy positive expanding drilling tool of directional drilling crossing, use
In distance trenchless in rocks Directional Drilling reaming construction.
Background technology
Directional Drilling for Pipeline Crossing is by the pilot hole being drilled, using the drilling rod having passed through at unearthed end
Reamer is installed and returns expansion, return after reaming several times and drag oil transportation, gas pipeline, real on the premise of not destroying landforms
Existing pipeline construction.Friction is produced because pilot hole rear stage reaming exists between drilling rod and crag in work progress
And resistance, larger abrasion is produced to drilling rod, is exactly to effectively reduce drill rod abrasion using just expanding technology.
Current Domestic, outer rock geology crossing construction task are increasing, when being oriented brill construction,
Need to carry out multistage borehole enlargement by drawing back construction
Due to borehole enlargement by drawing back, conventional reamer bears bigger pulling force, there is very big friction with hole wall, from
And leading to conventional drill tool wear serious, speed of application cannot improve, and increased construction period and operating expenses.
Content of the invention
In order to solve in prior art, drill tool wear is serious, leads to speed of application cannot improve, increased and apply
Work cycle and the problem of operating expenses, embodiments provide a kind of lithostratigraphy directional drilling crossing with just
Expanding drilling tool.Described technical scheme is as follows：
A kind of lithostratigraphy positive expanding drilling tool of directional drilling crossing, described positive expanding drilling tool includes power drilling tool, center
Localizer, reamer and guide head, it is fixed that described power drilling tool outer cover the described center threadeded with it
Position device, described power drilling tool, described reamer and described guide head sequentially pass through threaded, described reaming
Device includes reamer body, reamer mandrel, reamer water channel, reamer gear wheel and water nozzle, described reaming
Device main body is weldingly connected with described reamer mandrel, described reamer water channel, described reamer gear wheel and described
Water nozzle is arranged in described reamer body.
Specifically, it is provided with turbine motor inside described power drilling tool.
Specifically, described central positioner includes the internal layer annulus being arranged concentrically and outer layer annulus, described internal layer
It is welded with supporting steel plate between annulus and described outer layer annulus.
Specifically, described outer layer annulus outer surface studs with wear-resistant strip.
Specifically, described reamer gear wheel includes bit leg part, palm back portion and bearing arrangement, described bearing
System adopts rolling bearing, and adopts ball lock structure.
Specifically, the thrust sector of described bearing arrangement adopts hard alloy blocks.
Specifically, described reamer cone palm back portion is covered with gauge teeth.
Specifically, described reamer gear wheel is using cone cone structure again.
Specifically, described reamer palm of roller bits part is cube and cylinder pin positioning structure.
Specifically, described guide head is 8 inches, and described reamer is 20 inches, described central positioner is
18 inches.
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is：
The present invention, on the basis of original borehole-enlarging drilling tool combines, provides power by power drilling tool, by
Heart localizer carries out righting, provides guiding by guide head, complicated geological such as sand can be effectively reduced or avoided
The situation of the tube orientation Drilling for Pipeline Crossing middle hole wall heavy wear drilling rod such as layer, conglomerate, broken rock, improves
The service life of drilling rod, improves speed of application, decreases construction period and operating expenses, decreases economy
Put into.
Brief description
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, below will be to institute in embodiment description
Need use accompanying drawing be briefly described it should be apparent that, drawings in the following description are only the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the overall installation diagram of the positive expanding drilling tool of lithostratigraphy provided in an embodiment of the present invention directional drilling crossing；
Fig. 2 is the structure chart of central positioner provided in an embodiment of the present invention；
Fig. 3 is the overall structure figure of reamer provided in an embodiment of the present invention；
Fig. 4 A is the front view of reamer body provided in an embodiment of the present invention；
Fig. 4 B is the side view of Fig. 4 A；
Fig. 4 C is the side view of Fig. 4 A；
Fig. 5 is the structure chart of reamer cone palm back portion provided in an embodiment of the present invention；
Fig. 6 is the structure chart of reamer gear wheel bearing arrangement provided in an embodiment of the present invention；
Fig. 7 A is the main sectional view of guide head provided in an embodiment of the present invention；
Fig. 7 B is the A-A sectional view in Fig. 7 A；
Fig. 7 C is the B-B sectional view in Fig. 7 A.
The each symbol of in figure represents that implication is as follows：
10 power drilling tools,
20 central positioners, 21 internal layer annulus, 22 outer layer annulus, 23 supporting steel plates, 24 wear-resistant strips,
30 reamers, 31 reamer body, 32 reamer mandrels, 33 reamer water channels, 34 reamer teeth
Wheel, 34A palm back portion, 34B bearing arrangement, 34B1 rolling bearing, 34B2 ball lock structure, 35
Water nozzle,
40 guide heads.
Specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to the present invention
Embodiment is described in further detail.
The present invention is on the basis of no-dig technique gear wheel welding type rock reamer technology to conventional non-excavation type rock
The aspects such as the bit leg of reamer gear wheel 34, the installation of gear wheel, the shape of gear wheel are innovated.Make this expansion
Hole device more meets the needs of rock just expansion.By centralizer, rock reamer, guiding first-class be combined, change
Become returning of industry inertia and expanded technique, realized just expanding.Specific as follows：
As shown in figure 1, a kind of lithostratigraphy positive expanding drilling tool of directional drilling crossing, described positive expanding drilling tool includes moving
Power drilling tool 10, central positioner 20, reamer 30 and guide head 40（Referring also to Fig. 7 A, 7B, 7C）,
Described power drilling tool 10 outer cover the described central positioner 20 threadeded with it, described power drilling tool
10th, described reamer 30 and described guide head 40 sequentially pass through threaded, as shown in figure 3, described expansion
Hole device 30 includes reamer body 31（Referring also to Fig. 4 A, 4B and Fig. 4 C）, reamer mandrel 32, expand
Hole device water channel 33, reamer gear wheel 34 and water nozzle 35, described reamer body 31 and described reamer mandrel
32 are weldingly connected, and described reamer water channel 33, described reamer gear wheel 34 and described water nozzle 35 are arranged at
In described reamer body 31.
As shown in figure 1, the present invention, on the basis of original borehole-enlarging drilling tool combines, is provided by power drilling tool 10
Power, carries out righting by central positioner 20, provides guiding by guide head 40, and that is, the present invention is
Front connects rock reamer 30 using pilot hole seeker, and rear end connects the power drilling tool 10 with centralizer
For front end reamer 30 provide reaming power, can effectively be reduced or avoided complicated geological for example layer of sand, conglomerate,
The situation of the tube orientation Drilling for Pipeline Crossing middle hole wall heavy wear drilling rod such as broken rock, is greatly improved reaming
Speed, improves drilling rod, the service efficiency of drilling tool, improves the service life of drilling rod, improves speed of application, subtracts
Lack work cycle and operating expenses, reduce economic input.
Specifically, referring to Fig. 1, inside described power drilling tool 10, it is provided with turbine motor.
Specifically, as shown in Fig. 2 described central positioner 20 includes internal layer annulus 21 He being arranged concentrically
Outer layer annulus 22, is welded with supporting steel plate 23 between described internal layer annulus 21 and described outer layer annulus 22.
Specifically, as shown in Fig. 2 described outer layer annulus 22 outer surface studs with wear-resistant strip 24.
Specifically, described reamer gear wheel 34 includes bit leg part, palm back portion 34A（Referring to Fig. 5）And
Bearing arrangement 34B（Referring to Fig. 6）, referring to Fig. 6, described bearing arrangement 34B adopts rolling bearing 34B1,
And adopt ball lock structure 34B2.Specifically, referring to Fig. 6, the thrust sector of described bearing arrangement 34B
Using hard alloy blocks.High rotating speed reaming is suitable for using said structure.
Specifically, referring to Fig. 5, described reamer gear wheel 34 palm back portion 34A is covered with gauge teeth.
Specifically, referring to Fig. 3, described reamer gear wheel 34 improves the contour structures of gear wheel：Reduce cutter teeth
Groove, reduces gear wheel height, using multiple cone cone structure, reduces gear wheel height by above-mentioned improvement, mitigates tooth
Wheel weight, saves manufacturing cost, improves the versatility of gear wheel.
Present invention improves over the shape of gear wheel cone is so as to be more suitable for the applying working condition of Directional Drilling reaming, expand
During hole, the position of stress point is more rational, effectively extends the life-span of ball lock bearing.
Specifically, referring to Fig. 3, described reamer gear wheel 34 bit leg part is cube and cylinder pin positioning structure,
Reamer gear wheel 34 is made to install on reamer 30 more convenient, angle is more accurate.
Specifically, referring to Fig. 7 A, described guide head 40 is 8 inches, and referring to Fig. 4, described reamer 30 is
20 inches, referring to Fig. 2, described central positioner 20 is 18 inches.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all the present invention's
Within spirit and principle, any modification, equivalent substitution and improvement made etc., should be included in the present invention's
Within protection domain.
Claims (10)
1. a kind of lithostratigraphy directional drilling crossing with positive expanding drilling tool it is characterised in that described positive expanding drilling tool includes
Power drilling tool, central positioner, reamer and guide head, described power drilling tool outer cover with its screw thread even
The described central positioner connecing, described power drilling tool, described reamer and described guide head sequentially pass through screw thread
Connect, described reamer include reamer body, reamer mandrel, reamer water channel, reamer gear wheel and
Water nozzle, described reamer body is weldingly connected with described reamer mandrel, described reamer water channel, described expansion
Hole device gear wheel and described water nozzle are arranged in described reamer body.
2. positive expanding drilling tool according to claim 1 is it is characterised in that be provided with inside described power drilling tool
Turbine motor.
3. positive expanding drilling tool according to claim 1 is it is characterised in that described central positioner is included together
The internal layer annulus of heart setting and outer layer annulus, are welded with support between described internal layer annulus and described outer layer annulus
Steel plate.
4. positive expanding drilling tool according to claim 3 is it is characterised in that described outer layer annulus outer surface is inlayed
There is wear-resistant strip.
5. positive expanding drilling tool according to claim 1 is it is characterised in that described reamer gear wheel includes tooth
Metacarpus divides, slaps back portion and bearing arrangement, and described bearing arrangement adopts rolling bearing, and adopts ball lock
Structure.
6. positive expanding drilling tool according to claim 5 is it is characterised in that the thrust portion of described bearing arrangement
Divide and adopt hard alloy blocks.
7. positive expanding drilling tool according to claim 6 is it is characterised in that described reamer cone palm back
Divide and be covered with gauge teeth.
8. positive expanding drilling tool according to claim 7 is it is characterised in that described reamer gear wheel is using multiple
Cone cone structure.
9. positive expanding drilling tool according to claim 8 is it is characterised in that described reamer palm of roller bits portion
It is divided into cube and cylinder pin positioning structure.
10. the positive expanding drilling tool according to claim 1-9 any one claim is it is characterised in that described
Guide head is 8 inches, and described reamer is 20 inches, described central positioner is 18 inches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310231638.1A CN104234631B (en) | 2013-06-09 | 2013-06-09 | Forward-reaming drilling tool for lithostratigraphic directional drilling crossing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310231638.1A CN104234631B (en) | 2013-06-09 | 2013-06-09 | Forward-reaming drilling tool for lithostratigraphic directional drilling crossing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104234631A CN104234631A (en) | 2014-12-24 |
| CN104234631B true CN104234631B (en) | 2017-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310231638.1A Active CN104234631B (en) | 2013-06-09 | 2013-06-09 | Forward-reaming drilling tool for lithostratigraphic directional drilling crossing |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869799A (en) * | 2017-04-13 | 2017-06-20 | 中国石油集团钻井工程技术研究院 | One kind is applied to wear-resisting rock stratum hydraulic rotary drill-following reamer |
| CN107829685B (en) * | 2017-10-10 | 2023-12-19 | 苏州工业园区科艺通信设备有限公司 | Pneumatic full-section rock reamer of directional drilling machine and reaming process thereof |
| CN107842314A (en) * | 2017-11-14 | 2018-03-27 | 中国煤炭地质总局水文地质局 | A kind of heavy caliber reaming bit and large-diameter well drilling method |
| CN107965270A (en) * | 2017-12-26 | 2018-04-27 | 重庆科技学院 | Reacting cycle flow channel type twin-stage reamer |
| CN111852336B (en) * | 2020-08-27 | 2021-10-29 | 安徽建筑大学 | Drilling tool for horizontal directional drilling and reaming |
| CN113445925B (en) * | 2021-08-02 | 2023-01-10 | 新疆格瑞迪斯石油技术股份有限公司 | Roller bit with stable auxiliary drill rod and improved slag removal efficiency for petroleum drilling |
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|---|---|---|---|---|
| JPH02140385A (en) * | 1988-11-21 | 1990-05-30 | Ishioka Kensetsu Kk | Underground hole excavating device |
| GB9103611D0 (en) * | 1988-08-29 | 1991-05-08 | Catawa Pty Ltd | Drills for piles and soil stabilization |
| CN201034015Y (en) * | 2007-05-15 | 2008-03-12 | 上海管易地下管线工程技术有限公司 | Rock reamer with helical centralizer |
| CN201567961U (en) * | 2009-12-16 | 2010-09-01 | 中国石油天然气股份有限公司 | Hydraulic variable hole expander while drilling |
| CN203515330U (en) * | 2013-06-09 | 2014-04-02 | 中国石油天然气集团公司 | Positive expanding drilling tool for directional drilling and crossing of rock stratum |
-
2013
- 2013-06-09 CN CN201310231638.1A patent/CN104234631B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9103611D0 (en) * | 1988-08-29 | 1991-05-08 | Catawa Pty Ltd | Drills for piles and soil stabilization |
| JPH02140385A (en) * | 1988-11-21 | 1990-05-30 | Ishioka Kensetsu Kk | Underground hole excavating device |
| CN201034015Y (en) * | 2007-05-15 | 2008-03-12 | 上海管易地下管线工程技术有限公司 | Rock reamer with helical centralizer |
| CN201567961U (en) * | 2009-12-16 | 2010-09-01 | 中国石油天然气股份有限公司 | Hydraulic variable hole expander while drilling |
| CN203515330U (en) * | 2013-06-09 | 2014-04-02 | 中国石油天然气集团公司 | Positive expanding drilling tool for directional drilling and crossing of rock stratum |
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| CN104234631A (en) | 2014-12-24 |
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Effective date of registration: 20170505 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Co-patentee after: China Petroleum Pipeline Bureau Engineering Co., Ltd. Patentee after: China National Petroleum Corporation Co-patentee after: Tianjin Lilin Bit Co., Ltd. Address before: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Co-patentee before: China Petroleum and Natural Gas Pipeline Bureau Patentee before: China National Petroleum Corporation Co-patentee before: Tianjin Lilin Bit Co., Ltd. |
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| TR01 | Transfer of patent right |