CN102134970A - Device for accurately positioning deep hole in process of testing ground stress - Google Patents
Device for accurately positioning deep hole in process of testing ground stress Download PDFInfo
- Publication number
- CN102134970A CN102134970A CN201110054476XA CN201110054476A CN102134970A CN 102134970 A CN102134970 A CN 102134970A CN 201110054476X A CN201110054476X A CN 201110054476XA CN 201110054476 A CN201110054476 A CN 201110054476A CN 102134970 A CN102134970 A CN 102134970A
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- core pipe
- oriented core
- deep hole
- test
- drilling rod
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- 238000012360 testing method Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title abstract description 4
- 238000005553 drilling Methods 0.000 claims abstract description 28
- 239000003638 chemical reducing agent Substances 0.000 claims description 23
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000001603 reducing effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention discloses a device for accurately positioning a deep hole in the process of testing ground stress. The device comprises an oriented core pipe, wherein the two ends of the oriented core pipe are connected with a diameter-variable joint respectively; the diameter-variable joint at one end is connected with a drill rod at a drilling machine end, and the diameter-variable joint at the other end is connected with a drill rod at a drill end; and the external diameter of the oriented core pipe is greater than that of the drill rod and is less than or equal to the rotation diameter of a drill. The rigidity of the whole drill rod is indirectly changed; and the device has a simple structure, is convenient to use and can effectively improve drilling accuracy.
Description
Technical field
The present invention relates to a kind of device of the boring of stress test compatibly, relate in particular to a kind of test geostatic stress deep hole accurate positioning device.
Background technology
Geostatic stress test is to the exigent engineering test of drilling quality, and boring drill through the major part that often takies whole engineering quantity.At present, in the geostatic stress test process, carry out deep hole when drilling through, often since borehole accuracy to reach the situation that test request do not cause test experiments to be failed very general.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structurely, easy to use, can effectively improve the test geostatic stress deep hole accurate positioning device of borehole accuracy.
The objective of the invention is to be achieved through the following technical solutions:
Test geostatic stress deep hole accurate positioning device of the present invention comprises the oriented core pipe, and the two ends of described oriented core pipe are connected with reducer union respectively, and the reducer union of an end is connected with the drilling rod of rig end, and the reducer union of the other end is connected with the drilling rod of drill bit end;
The external diameter of described oriented core pipe is greater than the external diameter of described drilling rod, and is less than or equal to the tactical diameter of described drill bit.
As seen from the above technical solution provided by the invention, the test geostatic stress deep hole accurate positioning device that the embodiment of the invention provides, owing to comprise the oriented core pipe, the two ends of oriented core pipe are connected with reducer union respectively, the reducer union of one end is connected with the drilling rod of rig end, and the reducer union of the other end is connected with the drilling rod of drill bit end; The external diameter of oriented core pipe is greater than the external diameter of drilling rod, and is less than or equal to the tactical diameter of drill bit.Change stem rigidity indirectly, simple in structure, easy to use, can effectively improve borehole accuracy.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite of not paying creative work, can also obtain other accompanying drawings according to these accompanying drawings.
The structural representation of the test geostatic stress deep hole accurate positioning device that Fig. 1 provides for the embodiment of the invention;
Fig. 2 is the left view of Fig. 1.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on embodiments of the invention, those of ordinary skills belong to protection scope of the present invention not making the every other embodiment that is obtained under the creative work prerequisite.
Test geostatic stress deep hole accurate positioning device of the present invention, its preferable specific embodiment be as shown in Figure 1:
Comprise oriented core pipe 1, the reducer union 2 that the two ends of described oriented core pipe 1 are connected with reducer union 2, one ends respectively is connected with the drilling rod of rig end, and the reducer union 2 of the other end is connected with the drilling rod of drill bit end;
The external diameter of described oriented core pipe is greater than the external diameter of described drilling rod, and is less than or equal to the tactical diameter of described drill bit.
In the specific embodiment, the external diameter of described oriented core pipe can be than the tactical diameter of described drill bit little 3-5mm.
Described oriented core pipe can be less than or equal to 5m apart from the distance of described drill bit.
Described oriented core pipe is a tubular, and described reducer union is provided with the limbers of hollow, and described oriented core pipe and reducer union form the integral body that is communicated with drilling rod.
Can be by being threaded between described reducer union and the oriented core pipe, can be between described reducer union and the drilling rod by being threaded.Also can select other connected mode.
Among the present invention, the oriented core length of tube can change length according to on-site actual situations, and two reducer unions can be done corresponding modification according to the connecting thread of different drilling rods.The external diameter of reducer union and basket must not be greater than the external diameter (tactical diameter) of drill bit.
The present invention is in use for easy to loading and unloading, can be furnished with the pipe wrench that adapts with the oriented core pipe as dismantling device.
In concrete the application, the bearing unit link position can be decided according to drilling depth, and its aim is to make drill bit not depart from the preset bearing.General run of steel between finder and drill bit should not be above 5 meters.
The present invention designs after summing up the field engineering practice, can improve drilling rod rigidity accordingly after installing apparatus of the present invention in position, thereby improve borehole accuracy greatly, for the follow-up test engineering provides better precondition.
Specific embodiment:
Geostatic stress deep hole accurate positioning device, by a long 400mm, external diameter 127mm, internal diameter 117mm, basket be threaded with two reducings, the major diameter of thread that the small end of reducing is connected with drilling rod is 38mm, internal diameter is 32mm, pitch 6mm.Reducer union is an external screw thread, and the basket two ends are internal thread, and reach is 50mm.Whole device is made by steel.
This apparatus structure is simple, and is easy to use, and through the field engineering practice test, is a kind of device of effective raising borehole accuracy.
The present invention is by installing the method for accurate positioning device additional at the drilling rod middle part, thereby reach the purpose that improves drilling rod rigidity, and make boring keep the preset bearing to creep into forward, thereby improved borehole accuracy greatly, having overcome drilling rod rigidity causes borehole accuracy not reach the problem of requirement inadequately, for stress test subsequently provides the reliable premise condition, make the chance of success of geostatic stress test be improved greatly, not only save the engineering quantity that repeats to drill, also reduced the sensor waste that test crash causes, improved the concentricity of boring so that reach the purpose that improves geostatic stress test success rate.
The directed basket of using can be consistent or slightly little with bore diameter, can require and appropriate change according to bore diameter and borehole accuracy, for improve borehole accuracy can suitably extend finder length or increase the finder number, and make the finder external diameter as far as possible near boring external diameter (the finder external diameter is littler than bore diameter).
The above; only for the preferable specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (6)
1. test geostatic stress deep hole accurate positioning device for one kind, it is characterized in that comprise the oriented core pipe, the two ends of described oriented core pipe are connected with reducer union respectively, the reducer union of one end is connected with the drilling rod of rig end, and the reducer union of the other end is connected with the drilling rod of drill bit end;
The external diameter of described oriented core pipe is greater than the external diameter of described drilling rod, and is less than or equal to the tactical diameter of described drill bit.
2. test geostatic stress deep hole accurate positioning device according to claim 1 is characterized in that the external diameter of described oriented core pipe is than the little 3-5mm of tactical diameter of described drill bit.
3. test geostatic stress deep hole accurate positioning device according to claim 2 is characterized in that, described oriented core pipe is less than or equal to 5m apart from the distance of described drill bit.
4. according to claim 1,2 or 3 described test geostatic stress deep hole accurate positioning device, it is characterized in that, described oriented core pipe is a tubular, and described reducer union is provided with the limbers of hollow, and described oriented core pipe and reducer union form the integral body that is communicated with drilling rod.
5. test geostatic stress deep hole accurate positioning device according to claim 4 is characterized in that, between described reducer union and the oriented core pipe by being threaded, between described reducer union and the drilling rod by being threaded.
6. according to claim 1,2 or 3 described test geostatic stress deep hole accurate positioning device, it is characterized in that described drilling rod is provided with one or more described oriented core pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110054476XA CN102134970A (en) | 2011-03-08 | 2011-03-08 | Device for accurately positioning deep hole in process of testing ground stress |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110054476XA CN102134970A (en) | 2011-03-08 | 2011-03-08 | Device for accurately positioning deep hole in process of testing ground stress |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102134970A true CN102134970A (en) | 2011-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110054476XA Pending CN102134970A (en) | 2011-03-08 | 2011-03-08 | Device for accurately positioning deep hole in process of testing ground stress |
Country Status (1)
| Country | Link |
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| CN (1) | CN102134970A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852549A (en) * | 2012-09-26 | 2013-01-02 | 辽宁工程技术大学 | Deep hole multi-stress probe conveying device |
| CN103790582A (en) * | 2014-01-26 | 2014-05-14 | 北京雷雨达科技有限公司 | Geostress measuring device and method |
| CN105841855A (en) * | 2016-05-06 | 2016-08-10 | 中国矿业大学(北京) | Novel ground stress test device |
| CN112459837A (en) * | 2020-12-14 | 2021-03-09 | 中铁第一勘察设计院集团有限公司 | Ground stress measuring point arrangement method for railway tunnel deep hole hydraulic fracturing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4258804A (en) * | 1979-05-04 | 1981-03-31 | Richey Vernon T | Releasable drill string stabilizer |
| GB2083102A (en) * | 1980-09-04 | 1982-03-17 | Pragmatic Consulting Services | Full hole drill collar and method of producing same |
| CN2291496Y (en) * | 1997-04-21 | 1998-09-16 | 胜利石油管理局钻井五公司 | Centralising device for drilling tool |
| CN2846711Y (en) * | 2005-09-24 | 2006-12-13 | 辽河石油勘探局 | Low wear resistance centralizer for horizontal directional drilling well |
| CN101220732A (en) * | 2008-01-23 | 2008-07-16 | 西南石油大学 | Reduction-resistant vibration-damping break-proof righting coupling for gas drilling |
-
2011
- 2011-03-08 CN CN201110054476XA patent/CN102134970A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4258804A (en) * | 1979-05-04 | 1981-03-31 | Richey Vernon T | Releasable drill string stabilizer |
| GB2083102A (en) * | 1980-09-04 | 1982-03-17 | Pragmatic Consulting Services | Full hole drill collar and method of producing same |
| CN2291496Y (en) * | 1997-04-21 | 1998-09-16 | 胜利石油管理局钻井五公司 | Centralising device for drilling tool |
| CN2846711Y (en) * | 2005-09-24 | 2006-12-13 | 辽河石油勘探局 | Low wear resistance centralizer for horizontal directional drilling well |
| CN101220732A (en) * | 2008-01-23 | 2008-07-16 | 西南石油大学 | Reduction-resistant vibration-damping break-proof righting coupling for gas drilling |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852549A (en) * | 2012-09-26 | 2013-01-02 | 辽宁工程技术大学 | Deep hole multi-stress probe conveying device |
| CN102852549B (en) * | 2012-09-26 | 2014-06-18 | 辽宁工程技术大学 | Deep hole multi-stress probe conveying device |
| CN103790582A (en) * | 2014-01-26 | 2014-05-14 | 北京雷雨达科技有限公司 | Geostress measuring device and method |
| CN105841855A (en) * | 2016-05-06 | 2016-08-10 | 中国矿业大学(北京) | Novel ground stress test device |
| CN112459837A (en) * | 2020-12-14 | 2021-03-09 | 中铁第一勘察设计院集团有限公司 | Ground stress measuring point arrangement method for railway tunnel deep hole hydraulic fracturing method |
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Application publication date: 20110727 |