CN104234631A - 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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- CN104234631A CN104234631A CN201310231638.1A CN201310231638A CN104234631A CN 104234631 A CN104234631 A CN 104234631A CN 201310231638 A CN201310231638 A CN 201310231638A CN 104234631 A CN104234631 A CN 104234631A
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- reamer
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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 the positive expanding drilling tool of a kind of lithostratigraphy directional drilling crossing, for long distance trenchless in rocks Directional Drilling reaming construction.
Background technology
Directional Drilling for Pipeline Crossing is by the pilot hole bored, and uses the drilling rod passed through to install reamer at unearthed end and returns expansion, return and drag oil transportation, gas pipeline, under the prerequisite not destroying landforms, realize pipeline construction after several times reamings.Produce friction and resistance because the reaming of pilot hole rear stage exists in work progress between drilling rod and crag, comparatively galling is produced to drilling rod, adopt and just expanding technology exactly in order to effectively reduce drill rod abrasion.
Current Domestic, outer rock geology crossing construction task are increasing, when carrying out Directional Drilling construction, need to carry out multistage borehole enlargement by drawing back construction
Due to borehole enlargement by drawing back, conventional reamer bears larger pulling force, there is very large friction with hole wall, thus causes conventional drill tool wear serious, and speed of application can not get improving, and adds construction period and operating expenses.
Summary of the invention
Serious in order to solve drill tool wear in prior art, cause speed of application to can not get improving, add the problem of construction period and operating expenses, embodiments provide the positive expanding drilling tool of a kind of lithostratigraphy directional drilling crossing.Described technical scheme is as follows:
The positive expanding drilling tool of a kind of lithostratigraphy directional drilling crossing, described positive expanding drilling tool comprises power drilling tool, central positioner, reamer and guide head, described power drilling tool outer cover the described central positioner be threaded with it, described power drilling tool, described reamer and described guide head sequentially pass through and are threaded, described reamer comprises reamer body, reamer mandrel, reamer water channel, reamer gear wheel and water nozzle, described reamer body and described reamer mandrel are weldingly connected, described reamer water channel, described reamer gear wheel and described water nozzle are all arranged in described reamer body.
Particularly, described power drilling tool inside is provided with turbine motor.
Particularly, described central positioner comprises the internal layer annulus and outer annulus that arrange with one heart, is welded with supporting steel plate between described internal layer annulus and described outer annulus.
Particularly, described outer annulus external surface studs with wear-resistant strip.
Particularly, described reamer gear wheel comprises bit leg part, palm back portion and bearing arrangement, and described bearing arrangement adopts rolling bearing, and adopts ball lock structure.
Particularly, the thrust sector of described bearing arrangement adopts hard alloy blocks.
Particularly, described reamer cone palm back portion is covered with gauge teeth.
Particularly, described reamer gear wheel adopts and bores cone structure again.
Particularly, the described reamer palm of roller bits part side's of being body and straight pin location structure.
Particularly, described guide head is 8 inches, and described reamer is 20 inches, described central positioner is 18 inches.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:
The present invention is on the basis that original borehole-enlarging drilling tool combines, power is provided by power drilling tool, righting is carried out by central positioner, guiding is provided by guide head, can effectively reduce or avoid complicated geological as the situation of hole wall heavy wear drilling rod in the tube orientation Drilling for Pipeline Crossings such as layer of sand, conglomerate, broken rock, improve the application life of drilling rod, improve speed of application, decrease construction period and operating expenses, decrease economic input.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the integral installation figure of the positive expanding drilling tool of lithostratigraphy directional drilling crossing that the embodiment of the present invention provides;
Fig. 2 is the structure chart of the central positioner that the embodiment of the present invention provides;
Fig. 3 is the overall structure figure of the reamer that the embodiment of the present invention provides;
Fig. 4 A is the front view of the reamer body that the embodiment of the present invention provides;
Fig. 4 B is the lateral view of Fig. 4 A;
Fig. 4 C is the lateral view of Fig. 4 A;
Fig. 5 is the structure chart of the reamer cone palm back portion that the embodiment of the present invention provides;
Fig. 6 is the structure chart of the reamer gear wheel bearing arrangement that the embodiment of the present invention provides;
Fig. 7 A is the main sectional view of the guide head that the embodiment of the present invention provides;
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.
In figure, each symbol represents that implication is as follows:
10 power drilling tools,
20 central positioners, 21 internal layer annulus, 22 outer annulus, 23 supporting steel plates, 24 wear-resistant strips,
30 reamers, 31 reamer body, 32 reamer mandrels, 33 reamer water channels, 34 reamer gear wheels, 34A slaps back portion, 34B bearing arrangement, 34B1 rolling bearing, 34B2 ball lock structure, 35 water nozzles,
40 guide heads.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
The present invention innovates in the bit leg, the installation of gear wheel, the shape of gear wheel etc. of conventional non-excavation type rock reamer gear wheel 34 on the basis of no-dig technique gear wheel welded type rock reamer technology.The needs making this reamer more meet rock just to expand.By centralizer, rock reamer, guiding is first-class combines, and changes returning of industry inertia and expands technique, realize just expanding.Specific as follows:
As shown in Figure 1, the positive expanding drilling tool of a kind of lithostratigraphy directional drilling crossing, described positive expanding drilling tool comprises power drilling tool 10, central positioner 20, reamer 30 and guide head 40(also can see Fig. 7 A, 7B, 7C), described power drilling tool 10 outer cover the described central positioner 20 be threaded with it, described power drilling tool 10, described reamer 30 and described guide head 40 sequentially pass through and are threaded, as shown in Figure 3, described reamer 30 comprises reamer body 31(also can see Fig. 4 A, 4B and Fig. 4 C), reamer mandrel 32, reamer water channel 33, reamer gear wheel 34 and water nozzle 35, described reamer body 31 is weldingly connected with described reamer mandrel 32, described reamer water channel 33, described reamer gear wheel 34 and described water nozzle 35 are all arranged in described reamer body 31.
As shown in Figure 1, the present invention is on the basis that original borehole-enlarging drilling tool combines, power is provided by power drilling tool 10, righting is carried out by central positioner 20, guiding is provided by guide head 40, namely forefront of the present invention adopts pilot hole seeker to connect rock reamer 30, the power drilling tool 10 that rear end connects with centralizer provides reaming power for front end reamer 30, effectively can reduce or avoid complicated geological as layer of sand, conglomerate, the situation of hole wall heavy wear drilling rod in the tube orientation Drilling for Pipeline Crossings such as broken rock, can greatly improve reaming speed, improve drilling rod, the service efficiency of drilling tool, improve the application life of drilling rod, improve speed of application, decrease work cycle and operating expenses, reduce economic input.
Particularly, see Fig. 1, described power drilling tool 10 inside is provided with turbine motor.
Particularly, as shown in Figure 2, described central positioner 20 comprises the internal layer annulus 21 and outer annulus 22 that arrange with one heart, is welded with supporting steel plate 23 between described internal layer annulus 21 and described outer annulus 22.
Particularly, as shown in Figure 2, described outer annulus 22 external surface studs with wear-resistant strip 24.
Particularly, described reamer gear wheel 34 comprises bit leg part, palm back portion 34A(see Fig. 5) and bearing arrangement 34B(see Fig. 6), see Fig. 6, described bearing arrangement 34B adopts rolling bearing 34B1, and adopts ball lock structure 34B2.Particularly, see Fig. 6, the thrust sector of described bearing arrangement 34B adopts hard alloy blocks.Said structure is adopted to be applicable to high rotating speed reaming.
Particularly, see Fig. 5, described reamer gear wheel 34 is slapped back portion 34A and is covered with gauge teeth.
Particularly, see Fig. 3, described reamer gear wheel 34 improves the contour structures of gear wheel: reduce gear wheel teeth groove, reduce gear wheel height, adopt and bore cone structure again, reduce gear wheel height by above-mentioned improvement, alleviate gear wheel weight, save manufacturing cost, improve the versatility of gear wheel.
Present invention improves over the shape of gear wheel cone, make it be more suitable for the applying working condition of Directional Drilling reaming, in reaming procedure, the position of stress point is more rational, effectively extends the life-span of ball lock bearing.
Particularly, see Fig. 3, the described reamer gear wheel 34 bit leg part side's of being body and straight pin location structure, reamer gear wheel 34 is installed on reamer 30 more convenient, angle is more accurate.
Particularly, see Fig. 7 A, described guide head 40 is 8 inches, and see Fig. 4, described reamer 30 is 20 inches, and see Fig. 2, described central positioner 20 is 18 inches.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the positive expanding drilling tool of lithostratigraphy directional drilling crossing, it is characterized in that, described positive expanding drilling tool comprises power drilling tool, central positioner, reamer and guide head, described power drilling tool outer cover the described central positioner be threaded with it, described power drilling tool, described reamer and described guide head sequentially pass through and are threaded, described reamer comprises reamer body, reamer mandrel, reamer water channel, reamer gear wheel and water nozzle, described reamer body and described reamer mandrel are weldingly connected, described reamer water channel, described reamer gear wheel and described water nozzle are all arranged in described reamer body.
2. positive expanding drilling tool according to claim 1, is characterized in that, described power drilling tool inside is provided with turbine motor.
3. positive expanding drilling tool according to claim 1, is characterized in that, described central positioner comprises the internal layer annulus and outer annulus that arrange with one heart, is welded with supporting steel plate between described internal layer annulus and described outer annulus.
4. positive expanding drilling tool according to claim 3, is characterized in that, described outer annulus external surface studs with wear-resistant strip.
5. positive expanding drilling tool according to claim 1, is characterized in that, described reamer gear wheel comprises bit leg part, palm 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 characterized in that, the thrust sector of described bearing arrangement adopts hard alloy blocks.
7. positive expanding drilling tool according to claim 6, is characterized in that, described reamer cone palm back portion is covered with gauge teeth.
8. positive expanding drilling tool according to claim 7, is characterized in that, described reamer gear wheel adopts and bores cone structure again.
9. positive expanding drilling tool according to claim 8, is characterized in that, the described reamer palm of roller bits part side's of being body and straight pin location structure.
10. the positive expanding drilling tool according to any one of claim 1-9 claim, is characterized 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 |
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| 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 |
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| CN104234631A true CN104234631A (en) | 2014-12-24 |
| CN104234631B CN104234631B (en) | 2017-02-08 |
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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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Cited By (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 |
| CN107829685A (en) * | 2017-10-10 | 2018-03-23 | 苏州工业园区科艺通信设备有限公司 | A kind of directional drilling machine pneumatic type tunneling boring rock reamer and its chambering process |
| 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 |
| CN111852336A (en) * | 2020-08-27 | 2020-10-30 | 安徽建筑大学 | Drilling tool for horizontal directional drilling and reaming |
| CN113445925A (en) * | 2021-08-02 | 2021-09-28 | 杨昭敏 | 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-diameter reaming device 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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2013
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Patent Citations (6)
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| GB9103611D0 (en) * | 1988-08-29 | 1991-05-08 | Catawa Pty Ltd | Drills for piles and soil stabilization |
| GB2241974A (en) * | 1988-08-29 | 1991-09-18 | 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-diameter reaming device 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 |
Cited By (7)
| 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 |
| CN107829685A (en) * | 2017-10-10 | 2018-03-23 | 苏州工业园区科艺通信设备有限公司 | A kind of directional drilling machine pneumatic type tunneling boring rock reamer and its chambering process |
| 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 |
| CN111852336A (en) * | 2020-08-27 | 2020-10-30 | 安徽建筑大学 | Drilling tool for horizontal directional drilling and reaming |
| CN113445925A (en) * | 2021-08-02 | 2021-09-28 | 杨昭敏 | Roller bit with stable auxiliary drill rod and improved slag removal efficiency for petroleum drilling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104234631B (en) | 2017-02-08 |
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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. |