CN203515330U - Positive expanding drilling tool for directional drilling and crossing of rock stratum - Google Patents
Positive expanding drilling tool for directional drilling and crossing of rock stratum Download PDFInfo
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- CN203515330U CN203515330U CN201320335725.7U CN201320335725U CN203515330U CN 203515330 U CN203515330 U CN 203515330U CN 201320335725 U CN201320335725 U CN 201320335725U CN 203515330 U CN203515330 U CN 203515330U
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- drilling tool
- reamer
- hole
- positive expanding
- positive
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Abstract
The utility model discloses a positive expanding drilling tool for directional drilling and crossing of a rock stratum and belongs to the field of petroleum exploitation. The positive expanding drilling tool comprises a power drilling tool, a central positioner, a hole expander and a guide head, wherein the central positioner is sleeved on and in a threaded connection with the exterior of the power drilling tool; the power drilling tool, the hole expander and the guide head are orderly connected; the hole expander comprises a hole expander main body, a hole expander dabber, a hole expander water channel, a hole expander cone and a water nozzle; the hole expander main body is welded with the hole expander dabber; and the hole expander water channel, the hole expander cone and the water nozzle are all arranged on the hole expander main body. Based on a combination of an original hole expanding drilling tool, serious wear of a drilling rod by a hole wall during directional crossing a complicate geological pipeline can be effectively reduced or avoided when power is provided by the power drilling tool, correction is conducted via the central positioner and guiding is performed by the guide head; and service life of the drilling rod is prolonged, construction speed is quickened, construction period and cost are reduced and economic investment is reduced.
Description
Technical field
The utility model relates to oil field, and particularly a kind of lithostratigraphy Directional Drilling passes through and uses positive expanding drilling tool, for long, apart from the reaming of the non-excavation Directional Drilling of rock, constructs.
Background technology
Directional Drilling for Pipeline Crossing is by the pilot hole having bored, and uses the drilling rod having passed through, at the end that is unearthed, reamer is installed and returns expansion, several all over returning and drag oil transportation, gas pipeline after reaming, under the prerequisite of not destroying landforms, realizes pipeline construction.Because one-level reaming after pilot hole exists in work progress, produce friction and resistance between drilling rod and crag, drilling rod is produced compared with galling, adopting just expansion technology is exactly for effective minimizing 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, has very large friction, thereby cause conventional drilling tool serious wear with hole wall, and speed of application can not get improving, and has increased construction period and operating expenses.
Utility model content
In order to solve drilling tool serious wear in prior art, cause speed of application to can not get improving, increased the problem of construction period and operating expenses, the utility model embodiment provides a kind of lithostratigraphy Directional Drilling to pass through and has used positive expanding drilling tool.Described technical scheme is as follows:
A kind of lithostratigraphy Directional Drilling passes through uses positive expanding drilling tool, 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 being threaded with it, described power drilling tool, described reamer and described guide head are threaded connection in turn, 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 internal layer annulus and the outer annulus of concentric setting, between described internal layer annulus and described outer annulus, is welded with supporting steel plate.
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 steel ball locking mechanism.
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 again cone structure.
Particularly, the partly side's of being body and straight pin location structure of described reamer palm of roller bits.
Particularly, described guide head is 8 inches, and described reamer is that 20 inches, described central positioner are 18 inches.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is:
The utility model is on the basis of original borehole-enlarging drilling tool combination, by power drilling tool, provide power, by central positioner, carry out righting, by guide head, provide guiding, 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, reduce construction period and operating expenses, reduced economic input.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is that the lithostratigraphy Directional Drilling that the utility model embodiment provides passes through the integral installation figure with positive expanding drilling tool;
Fig. 2 is the structure chart of the central positioner that provides of the utility model embodiment;
Fig. 3 is the overall structure figure of the reamer that provides of the utility model embodiment;
Fig. 4 A is the front view of the reamer body that provides of the utility model embodiment;
Fig. 4 B is the top view of Fig. 4 A;
Fig. 4 C is the upward view of Fig. 4 A;
Fig. 5 is the structure chart of the reamer cone palm back portion that provides of the utility model embodiment;
Fig. 6 is the structure chart of the reamer gear wheel bearing arrangement that provides of the utility model embodiment;
Fig. 7 A is the main sectional view of the guide head that provides of the utility model embodiment;
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 steel ball locking mechanism, 35 water nozzles,
40 guide heads.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
The utility model is innovated the bit leg of conventional non-excavation type rock reamer gear wheel 34, the installation of gear wheel, the aspects such as shape of gear wheel on the basis of non-excavation gear wheel welded type rock reamer technology.Make this reamer more meet the needs that rock is just expanding.By centralizer, rock reamer, guiding is first-class combines, and has changed returning of industry inertia and has expanded technique, realize and just expanding.Specific as follows:
As shown in Figure 1, a kind of lithostratigraphy Directional Drilling passes through uses positive expanding drilling tool, described positive expanding drilling tool comprises power drilling tool 10, central positioner 20, reamer 30 and guide head 40(also can be referring to Fig. 7 A, 7B, 7C), described power drilling tool 10 outer cover the described central positioner 20 being threaded with it, described power drilling tool 10, described reamer 30 and described guide head 40 are threaded connection in turn, as shown in Figure 3, described reamer 30 comprises that reamer body 31(also can be referring to 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 utility model is on the basis of original borehole-enlarging drilling tool combination, by power drilling tool 10, provide power, by central positioner 20, carry out righting, by guide head 40, provide guiding, be that the utility model forefront adopts pilot hole seeker to connect rock reamer 30, rear end connects with the power drilling tool 10 of centralizer provides reaming power for front end reamer 30, can effectively 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, work cycle and operating expenses have been reduced, reduce economic input.
Particularly, referring to Fig. 1, described power drilling tool 10 inside are provided with turbine motor.
Particularly, as shown in Figure 2, described central positioner 20 comprises internal layer annulus 21 and the outer annulus 22 of concentric setting, between described internal layer annulus 21 and described outer annulus 22, is welded with supporting steel plate 23.
Particularly, as shown in Figure 2, described outer annulus 22 external surfaces stud with wear-resistant strip 24.
Particularly, described reamer gear wheel 34 comprises that bit leg part, palm back portion 34A(are 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 adopts steel ball locking mechanism 34B2.Particularly, referring to Fig. 6, the thrust sector of described bearing arrangement 34B adopts hard alloy blocks.Adopt said structure to be applicable to high rotating speed reaming.
Particularly, referring to Fig. 5, described reamer gear wheel 34 palm back portion 34A are covered with gauge teeth.
Particularly, referring to Fig. 3, described reamer gear wheel 34 improves the contour structures of gear wheel: dwindle gear wheel teeth groove, reduce gear wheel height, adopt and bore again cone structure, by above-mentioned improvement, reduce gear wheel height, alleviate gear wheel weight, save manufacturing cost, improve the versatility of gear wheel.
The utility model has improved the shape of gear wheel cone, makes its applying working condition that is more suitable for Directional Drilling reaming, and in reaming process, the position of stress point is more rational, effectively extends the life-span of steel ball locking bearing.
Particularly, referring to Fig. 3, described reamer gear wheel 34 bit legs are the side's of being body and straight pin location structure partly, reamer gear wheel 34 is installed on reamer 30 more convenient, and angle is more accurate.
Particularly, referring to Fig. 7 A, described guide head 40 is 8 inches, and referring to Fig. 4, described reamer 30 is 20 inches, and referring to Fig. 2, described central positioner 20 is 18 inches.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a lithostratigraphy Directional Drilling passes through and uses positive expanding drilling tool, 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 being threaded with it, described power drilling tool, described reamer and described guide head are threaded connection in turn, 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 internal layer annulus and the outer annulus of concentric setting, between described internal layer annulus and described outer annulus, is welded with supporting steel plate.
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 steel ball locking mechanism.
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 bores cone structure again.
9. positive expanding drilling tool according to claim 8, is characterized in that, described reamer palm of roller bits is the side's of being body and straight pin location structure partly.
10. according to the positive expanding drilling tool described in claim 1-9 any one claim, it is characterized in that, described guide head is 8 inches, and described reamer is that 20 inches, described central positioner are 18 inches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320335725.7U CN203515330U (en) | 2013-06-09 | 2013-06-09 | Positive expanding drilling tool for directional drilling and crossing of rock stratum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320335725.7U CN203515330U (en) | 2013-06-09 | 2013-06-09 | Positive expanding drilling tool for directional drilling and crossing of rock stratum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203515330U true CN203515330U (en) | 2014-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320335725.7U Withdrawn - After Issue CN203515330U (en) | 2013-06-09 | 2013-06-09 | Positive expanding drilling tool for directional drilling and crossing of rock stratum |
Country Status (1)
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| CN (1) | CN203515330U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234631A (en) * | 2013-06-09 | 2014-12-24 | 中国石油天然气集团公司 | Forward-reaming drilling tool for lithostratigraphic directional drilling crossing |
-
2013
- 2013-06-09 CN CN201320335725.7U patent/CN203515330U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234631A (en) * | 2013-06-09 | 2014-12-24 | 中国石油天然气集团公司 | Forward-reaming drilling tool for lithostratigraphic directional drilling crossing |
| CN104234631B (en) * | 2013-06-09 | 2017-02-08 | 中国石油天然气集团公司 | Forward-reaming drilling tool for lithostratigraphic directional drilling crossing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170510 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. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140402 Effective date of abandoning: 20170208 |