CN202280427U - Balanced combined drilling tool for underground hole expansion work - Google Patents
Balanced combined drilling tool for underground hole expansion work Download PDFInfo
- Publication number
- CN202280427U CN202280427U CN2011204398927U CN201120439892U CN202280427U CN 202280427 U CN202280427 U CN 202280427U CN 2011204398927 U CN2011204398927 U CN 2011204398927U CN 201120439892 U CN201120439892 U CN 201120439892U CN 202280427 U CN202280427 U CN 202280427U
- Authority
- CN
- China
- Prior art keywords
- drilling tool
- reamer
- centralizer
- elastic centralizer
- combined drilling
- Prior art date
- 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
Links
Images
Abstract
The utility model relates to a balanced combined drilling tool for underground hole expansion work, which is applicable to the hole-expansion work before engineering pipelines of petroleum gas, electric wires and cables or city water supply and drainage and the like are paved. The technical scheme is as follows: the balanced combined drilling tool for the underground hole expansion work is composed of three parts including a bucket type reamer, a plate type reamer and an elastic centralizer, wherein the upper part of the elastic centralizer is connected with a drill pipe or a non-magnetic drill collar through threads at two ends, and the lower part of the elastic centralizer is connected with the plate type reamer; and the back side of the plate type reamer is connected with the buckle type reamer. The elastic centralizer of the balanced combined drilling tool can be exchanged with a spiral centralizer to use. Except the elastic centralizer, other components of the balanced combined drilling tool are made of high-strength aluminum alloy materials. According to the utility model, the stress of the reamers and the balanced combined drilling tool can be effectively supported, and the uneven cutting of hole walls, which is caused by the overweight front end of the plate type reamer, is avoided, so that the soil body cutting speed and the barrier passing capability of the reamers are improved.
Description
Technical field
The utility model relates to a kind of underground eyelet and expands into operation and use the balanced combination drilling tool, mainly be applicable to engineering pipelines such as petroleum gas, electric wire or urban water supply and sewerage lay before in the ream operations, when particularly counter bore diameter is big.
Background technology
Underground eyelet expands into operation mainly to be used at trenchless engineering.Trenchless technology is meant not excavating or lacking the construction technique of laying, change or repair various underground utilities under the excavating earth surface condition, claims TT (Trenchless Technology) or N-Dig abroad, is that an important technology of drilling project extends.Along with the develop rapidly of national economy, construction technology and equipment are constantly perfect, and the application of this pipe laying technology is also constantly being widened, and its main technique has orientation to pass through and underground shield structure etc.Underground eyelet expand into operation mainly underground several meters to twenties meters dark, basically all be weak soil layers such as clay or sand.Because it is not enough that the soil body advances tool support power to underground expansion; Therefore will improve and expand into instrument and stratum contact area at the bottom of enabling capabilities just must increase the hole, common way is that bucket formula reamer of installation comes balance stressed owing to the way-type drilling unit front and back behind board-like reamer.According to on-the-spot test and engineer's experience; Though this method can guarantee the eyelet quality to a certain extent, reduce the drilling tool failure frequency; But still be difficult to keep in the stability of the eyelet section of burying, and influenced drilling process and efficient greatly with the section way-type drilling unit that is unearthed; In addition, when horizontal segment crept into, the axial slide force magnitude of drill string was bigger, and this situation ubiquity.Mainly be owing to reasons such as eyelet track have caused drilling tool different, too big for avoiding contact surface influenced by track so with hole wall contact situation according to one's analysis, thereby designed a kind of novel balanced combination drilling tool.
The utility model is from the stress balance angle of drill string, based on improving eyelet quality and optimum organization drilling tool performance thought, designed a kind of underground eyelet especially and expanded into operation and use the balanced combination drilling tool.
Summary of the invention
The purpose of the utility model is: provide a kind of way-type drilling unit that can in underground bore hole reaming operation process, improve the stressed underground eyelet of enabling capabilities, the active balance way-type drilling unit of board-like reamer is expanded into operation to use the balanced combination drilling tool.
In order to achieve the above object, the technical scheme of the utility model employing is: underground eyelet expands into operation and is made up of three parts with the balanced combination drilling tool: bucket formula reamer 1, board-like reamer 2 and elastic centralizer 3.This way-type drilling unit makes elastic centralizer 3 through stacks or non magnetic drill collar on the screw thread of two ends, lower plate formula reamer 2; Connect a barrel formula reamer 1 behind the board-like reamer 2.Elastic centralizer 3 is made up of centralizer body 4 and arcuate bombing leaf 5.The elastic centralizer 3 of this balanced combination drilling tool can use with 6 transposings of spiral centralizer.Bucket formula reamer 1, board-like reamer 2 and elastic centralizer body 4 or spiral centralizer 6 are used the high-strength aluminum alloy material manufacturing in the balanced combination drilling tool, and the arcuate bombing leaf 5 usefulness spring steel of elastic centralizer are made.
The utility model has the advantages that: (1) is strong to the reamer enabling capabilities.The balanced combination drilling tool is mainly used in the ream operation before the pipe laying; Reamer can effectively be supported and the balanced combination drilling tool is stressed; The cutting of avoiding causing because of board-like reamer front end is overweight is uneven, thereby improves reamer cutting soil speed and the ability of crossing obstacle; (3) effectively protect other drilling tools.Elastic centralizer or spiral centralizer receive equilibrium of forces that parameters such as whole drill string axial force and moment of torsion are reduced to board-like reamer, can weaken the injury that drilling tool is caused; (4) the eyelet quality is good.Stressed after overbalance before and after the board-like reamer, the axis of way-type drilling unit and eyelet are consistent, form good eyelet quality, be beneficial to follow-up pipeline operations; (5) install and change simply.In board-like reamer upper end elastic centralizer or spiral centralizer are installed directly and are not influenced other drilling tool structures.
Description of drawings
Fig. 1 expands into operation with balanced combination drilling tool and elastic centralizer sketch map for a kind of underground eyelet of the utility model.
Fig. 2 expands into operation with spiral centralizer sketch map in the balanced combination drilling tool for a kind of underground eyelet of the utility model.
Among the figure: 1. barrel formula reamer, 2. board-like reamer, 3. elastic centralizer, 4. elastic centralizer body, 5. arcuate bombing leaf, 6. spiral centralizer.
Specific embodiment
As shown in Figure 1, this underground eyelet expands into operation and is made up of three parts with the balanced combination drilling tool: bucket formula reamer 1, board-like reamer 2 and elastic centralizer 3.This way-type drilling unit makes elastic centralizer 3 through stacks or non magnetic drill collar on the screw thread of two ends, behind the lower plate formula reamer 2, bucket formula reamer 1 is installed again.The elastic centralizer 3 of this balanced combination drilling tool can use with 6 conversions of spiral centralizer.This underground eyelet expands into operation and makes with bucket formula reamer 1, board-like reamer 2 and elastic centralizer body 4 in the balanced combination drilling tool or spiral centralizer 6 usefulness high-strength aluminum alloy materials; Arcuate bombing leaf 5 usefulness spring steel are made; The lighter weight of way-type drilling unit like this; Be prone to evenly cut around the hole wall, form eyelet quality preferably, help follow-up pipeline operations.Elastic centralizer 3 or spiral centralizer 6 can strengthen the enabling capabilities of drilling tool to board-like reamer 2; The active balance way-type drilling unit is stressed; The hole wall of avoiding causing because of board-like reamer front end is overweight cuts uneven; Thereby not only improve the speed and the ability of crossing obstacle of reamer cutting soil, and parameters such as whole drill string axial force and torque loads are reduced, weaken the injury that drilling tool is caused.
Claims (2)
1. a underground eyelet expands into operation and uses the balanced combination drilling tool, it is characterized in that this balanced combination drilling tool is made up of three parts: bucket formula reamer (1), board-like reamer (2) and elastic centralizer (3); This way-type drilling unit makes elastic centralizer (3) through stacks or non magnetic drill collar on the screw thread of two ends, and lower plate formula reamer (2) connects a barrel formula reamer (1) behind the board-like reamer (2); Elastic centralizer (3) is made up of centralizer body (4) and arcuate bombing leaf (5).
2. a kind of underground eyelet according to claim 1 expands into operation and uses the balanced combination drilling tool; It is characterized in that this underground eyelet expands into operation and uses the high-strength aluminum alloy material manufacturing with the bucket formula reamer (1) in the balanced combination drilling tool, board-like reamer (2) and elastic centralizer body (4) or spiral centralizer (6), the arcuate bombing leaf of elastic centralizer (5) is made with spring steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204398927U CN202280427U (en) | 2011-11-09 | 2011-11-09 | Balanced combined drilling tool for underground hole expansion work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204398927U CN202280427U (en) | 2011-11-09 | 2011-11-09 | Balanced combined drilling tool for underground hole expansion work |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202280427U true CN202280427U (en) | 2012-06-20 |
Family
ID=46226600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204398927U Expired - Fee Related CN202280427U (en) | 2011-11-09 | 2011-11-09 | Balanced combined drilling tool for underground hole expansion work |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202280427U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005713A (en) * | 2013-02-26 | 2014-08-27 | 中国石油天然气集团公司 | Sand layer geology directional drilling crossing centering device |
| CN104265176A (en) * | 2014-09-09 | 2015-01-07 | 无锡中地地质装备有限公司 | Cutting type reamer |
| CN104265175A (en) * | 2014-09-09 | 2015-01-07 | 无锡中地地质装备有限公司 | Novel reamer |
| CN104563879A (en) * | 2014-12-29 | 2015-04-29 | 无锡中地地质装备有限公司 | Waist belt structure for reamer |
| CN104563876A (en) * | 2014-12-29 | 2015-04-29 | 无锡中地地质装备有限公司 | Waistband reaming type reamer |
-
2011
- 2011-11-09 CN CN2011204398927U patent/CN202280427U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005713A (en) * | 2013-02-26 | 2014-08-27 | 中国石油天然气集团公司 | Sand layer geology directional drilling crossing centering device |
| CN104005713B (en) * | 2013-02-26 | 2016-04-06 | 中国石油天然气集团公司 | A kind of sand seam geology directional drilling crossing centralizer |
| CN104265176A (en) * | 2014-09-09 | 2015-01-07 | 无锡中地地质装备有限公司 | Cutting type reamer |
| CN104265175A (en) * | 2014-09-09 | 2015-01-07 | 无锡中地地质装备有限公司 | Novel reamer |
| CN104265175B (en) * | 2014-09-09 | 2016-03-30 | 无锡中地地质装备有限公司 | Novel reamer |
| CN104563879A (en) * | 2014-12-29 | 2015-04-29 | 无锡中地地质装备有限公司 | Waist belt structure for reamer |
| CN104563876A (en) * | 2014-12-29 | 2015-04-29 | 无锡中地地质装备有限公司 | Waistband reaming type reamer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202280427U (en) | Balanced combined drilling tool for underground hole expansion work | |
| CN103791159A (en) | Pipe-jacking construction method for small-diameter pipes | |
| CN109098661B (en) | Bidirectional paired river-crossing large-vertex-angle inclined hole drilling method for river valley of hydropower station | |
| CN103398215A (en) | Minimally-invasive non-excavation pipe jacking and pull technology | |
| CN101900223B (en) | Guide, spiral sludge discharge and pipeline jacking paving construction method | |
| CN104343383B (en) | A kind of drilling equipment for earthen ruins | |
| CN104234631B (en) | Forward-reaming drilling tool for lithostratigraphic directional drilling crossing | |
| CN102182415A (en) | Efficient milling cone with guide tool | |
| Shi et al. | The underground directional drilling technology and equipments for kilometer deep borehole with MWD in coalmine | |
| CN202659146U (en) | Double-drilling combined drill structure suitable for drilling operation of oil well and horizontal well | |
| CN206860100U (en) | Three sections spiral two-way with brill expansion reaming tool | |
| LI et al. | Rock breaking characteristics of a single cone-PDC combined drill bit in hard formation | |
| CN104763338A (en) | Hole expanding device, pull-back hole expanding assembly and hole expanding drilling method thereof | |
| CN204476270U (en) | A kind of reamer and reaming assembly of pulling back | |
| CN204591148U (en) | A kind of cutting type reamer | |
| CN204677113U (en) | reamer | |
| CN203569565U (en) | Anti-vibration foundation spiral ground pile | |
| CN210948498U (en) | Drill bit connecting structure of trenchless pipe-laying drilling machine | |
| CN202031515U (en) | High-efficiency milling cone with steering tool | |
| CN201802313U (en) | Combined rock reamer | |
| RU92879U1 (en) | INSTALLATION WOODEN | |
| Wen | A Novel and High-Efficiency Reaming Assembly for Underground Pipelines Pulling Back Laying in Horizontal Directional Drilling | |
| CN203547579U (en) | V-shaped stabilizer for eccentric drilling device | |
| CN201851008U (en) | Down-the-hole reaming drill | |
| CN204591140U (en) | A kind of horizontal directional drill transfer gear for non-dredging guiding driller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120620 Termination date: 20121109 |