CN108843263B - Automatic locating device for directional coring - Google Patents
Automatic locating device for directional coring Download PDFInfo
- Publication number
- CN108843263B CN108843263B CN201810913357.7A CN201810913357A CN108843263B CN 108843263 B CN108843263 B CN 108843263B CN 201810913357 A CN201810913357 A CN 201810913357A CN 108843263 B CN108843263 B CN 108843263B
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- Prior art keywords
- sleeve
- inner sleeve
- right inner
- guide
- outer sleeve
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- 238000005553 drilling Methods 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 5
- 238000005070 sampling Methods 0.000 description 5
- 239000011435 rock Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000001427 coherent effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
- E21B25/16—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors for obtaining oriented cores
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The automatic locating device for directional coring comprises an outer sleeve, a left inner sleeve, a right inner sleeve, a middle inner sleeve, a guide sleeve and an elastic element; the outer sleeve is fixedly connected with a stop screw; the left inner sleeve and the right inner sleeve are respectively arranged at two ends in the inner hole of the outer sleeve, and a stop groove is arranged on the outer wall of the right inner sleeve; the middle inner sleeve is arranged between the left inner sleeve and the right inner sleeve, one end of the middle inner sleeve is fixedly connected with the left inner sleeve, and the other end of the middle inner sleeve is movably sleeved with the right inner sleeve through a spline; the connecting end of the guide sleeve is fixedly arranged in the inner hole of the right inner sleeve, and an arch notch is arranged at the guide end; the elastic element is arranged between the left inner sleeve and the right inner sleeve in a compressing way and is positioned in the inner hole of the middle inner sleeve. The invention can realize the directional drilling and the core drilling of any set track at the same time.
Description
Technical Field
The invention relates to the technical field of geological drilling, in particular to an automatic locating device for directional coring.
Background
Currently, in the field of geological drilling, directional drilling mainly adopts a bottom hole motor to drive a drill bit to break rock to obtain footage, and a drill rod is not rotated due to the driving of the bottom hole motor, but serves as a high-pressure water pipeline to send high-pressure water to a bottom hole, and the high-pressure water drives the bottom hole motor to rotate so as to drive the drill bit to rotate. The generatrix of the tool face angle is fixed with the straight line of the measuring device in the drill rod, so that the wired or wireless while-drilling instrument can accurately find the generatrix of the tool face angle whenever being put into the inner hole of the drill rod, thereby measuring the technical parameters of the tool face angle, azimuth angle, apex angle and the like of the drill bit. The directional drilling of the hole bottom motor is insufficient in that a complete and effective core cannot be obtained, and accurate geological information cannot be obtained.
Currently, in the geological drilling field, core drilling can only be performed in a vertical direction, but cannot be performed in other set directions, because the drill rod rotates at a high speed in the core drilling process, the angle of the drill rod is changed at all times, and the generatrix of the tool face angle of the drill bit cannot be found in the continuously changed angle, so that the technical parameters such as the tool face angle, the azimuth angle, the vertex angle and the like of the drill bit cannot be measured. That is, the core drilling is disadvantageous in that only the coring in the vertical direction can be achieved, and the coring in the other set direction cannot be achieved.
At present, in the geological drilling field, it is very necessary to realize directional core drilling, taking subway construction as an example, before subway construction, a plurality of sampling points need to be arranged on a planned route at intervals, coring is carried out on each point in the vertical direction so as to know the distribution state of rock strata on the whole route, theoretical basis is provided for the follow-up setting of subway deep-digging and subway construction technical scheme, the more the theoretical sampling points are, the more the rock stratum distribution state on the whole route can be reflected, but the dense setting of the sampling points cannot be realized due to environmental and regional limitation in the urban subway construction process, and the sampling in the vertical direction is always 'point sampling', so that continuous and coherent geological information along the horizontal axis direction of the planned route cannot be obtained.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an automatic locating device for directional coring, which solves the problem that the core drilling and the directional drilling of any set track cannot be simultaneously realized in the geological drilling field at present.
The technical scheme of the invention is as follows: the automatic locating device for directional coring comprises an outer sleeve, a left inner sleeve, a right inner sleeve, a middle inner sleeve, a guide sleeve and an elastic element;
the outer sleeve is sleeve-shaped with two open ends, a stop screw is fixedly connected to the outer sleeve, and the end head of the stop screw extends into the inner hole of the outer sleeve;
The left inner sleeve and the right inner sleeve are respectively movably arranged at two ends in an inner hole of the outer sleeve through bearings, and a stop groove for embedding a stop screw is formed in the outer wall of the right inner sleeve;
the middle inner sleeve is arranged between the left inner sleeve and the right inner sleeve and is positioned in the inner hole of the outer sleeve, one end of the middle inner sleeve is fixedly connected with the left inner sleeve, and the other end of the middle inner sleeve is movably sleeved with the right inner sleeve through a spline;
The guide sleeve is sleeve-shaped with two open ends, one end of the guide sleeve is a connecting end, the other end of the guide sleeve is a guide end, the guide sleeve is fixedly arranged in an inner hole of the right inner sleeve at the connecting end, the connecting end faces the middle inner sleeve, and an arch notch is formed in the guide end;
The elastic element is arranged between the left inner sleeve and the right inner sleeve in a compression mode and is positioned in an inner hole of the middle inner sleeve; when the right inner sleeve is not subjected to external force, the elastic element forces the stop groove of the right inner sleeve to be mutually abutted with the stop screw of the outer sleeve through elasticity, and at the moment, the outer sleeve and the right inner sleeve can not rotate relatively; when the right inner sleeve moves to the left inner sleeve under the action of external force, the elastic element is compressed, the stop groove of the right inner sleeve and the stop screw of the outer sleeve are separated from each other, and at the moment, the outer sleeve and the right inner sleeve can rotate relatively.
The invention further adopts the technical scheme that: the one end that the outer tube is close to left interior sleeve pipe is equipped with the external screw thread of connecting the elbow, and the one end that the outer tube is close to right interior sleeve pipe is equipped with the internal screw thread of connecting the drilling rod, and the one end that the right interior sleeve pipe is close to outer tube pipe end is equipped with the external screw thread of connecting the drill bit.
The invention further adopts the technical scheme that: the side wall surface of the arch notch of the guide sleeve is in smooth transition connection with the end surface of the guide end of the guide sleeve; the end face of the guiding end of the guiding sleeve is an arc-shaped face which is obliquely arranged.
The invention further adopts the technical scheme that: an annular continuous guide step surface is arranged on the outer wall of the right inner sleeve, one end of the guide step surface is provided with a stop groove, and the other end of the guide step surface spirally extends along the axial direction of the right inner sleeve.
Compared with the prior art, the invention has the following advantages:
the one end that the outer tube is close to left interior sleeve pipe connects the elbow, and the outer tube of well head is connected to the one end that the outer tube is close to right interior sleeve pipe, and the drill rod is connected to the one end that the right interior sleeve pipe is close to outer sleeve pipe end, and the drill bit is connected to the one end that the left interior sleeve pipe is close to outer sleeve pipe end, can realize arbitrary setting for the orbit directional drilling and the core drilling simultaneously.
The invention is further described below with reference to the drawings and examples.
Drawings
FIG. 1 is a schematic view of the structure of the present invention in a relatively non-rotatable state of the outer sleeve and the right inner sleeve;
FIG. 2 is a schematic view of the structure of the present invention in a relatively rotatable state of the outer sleeve and the right inner sleeve;
FIG. 3 is a schematic view of the structure of the inner sleeve;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is a schematic view of the structure of a guide sleeve;
FIG. 6 is a sectional view B-B of FIG. 5;
FIG. 7 is a schematic view of the partial construction of the right inner sleeve at the stop groove;
fig. 8 is an enlarged view of a portion a of fig. 1;
fig. 9 is an enlarged view of a portion B of fig. 1;
Fig. 10 is an enlarged view of a portion C of fig. 2.
Detailed Description
Example 1:
as shown in fig. 1-10, the automatic locating device for directional coring comprises an outer sleeve 1, a left inner sleeve 2, a right inner sleeve 3, a middle inner sleeve 4, a guide sleeve 5 and an elastic element 6.
The outer sleeve 1 is sleeve-shaped with two open ends, a stop screw 11 is fixedly connected on the sleeve-shaped outer sleeve, and the end head of the stop screw 11 extends into the inner hole of the outer sleeve 1.
The left inner sleeve 2 and the right inner sleeve 3 are movably arranged at two ends in the inner hole of the outer sleeve 1 through bearings (preferably needle bearings) respectively. An annular continuous guide step surface 31 is arranged on the outer wall of the right inner sleeve 3, one end of the guide step surface 31 is provided with a stop groove 311 (the stop groove 311 can be used for embedding the stop screw 11), and the other end of the guide step surface extends spirally along the axial direction of the right inner sleeve 3.
The middle inner sleeve 4 is arranged between the left inner sleeve and the right inner sleeve and is positioned in the inner hole of the outer sleeve 1, one end of the middle inner sleeve is fixedly connected with the left inner sleeve 2, and the other end of the middle inner sleeve is movably sleeved with the right inner sleeve 3 through a spline.
The guide sleeve 5 is sleeve-shaped with two open ends, one end is a connecting end, the other end is a guide end, the guide sleeve is fixedly arranged in the inner hole of the right inner sleeve 3 at the connecting end, the connecting end faces the middle inner sleeve 4, and an arch notch 51 is arranged at the guide end.
A resilient element 6, preferably a spring, is arranged in compression between the left and right inner sleeves and is located in the inner bore of the inner sleeve 4. When the right inner sleeve 3 is not subjected to external force, the elastic element 6 forces the stop groove 31 of the right inner sleeve 3 to abut against the stop screw 11 of the outer sleeve 1 through elastic force, and at the moment, the outer sleeve 1 and the right inner sleeve 3 can not rotate relatively. When the right inner sleeve 3 moves to the left inner sleeve by external force, the elastic element is compressed, the stop groove of the right inner sleeve and the stop screw of the outer sleeve are separated from each other, and at the moment, the outer sleeve and the right inner sleeve can rotate relatively.
Preferably, an inner spline 41 is arranged in an inner hole of the connecting end of the middle inner sleeve 4 and the right inner sleeve 3, and an outer spline 32 is arranged on the outer circular surface of the connecting end of the right inner sleeve 3 and the middle inner sleeve 4. The right inner sleeve 3 is movably sleeved in the inner hole of the middle inner sleeve 4 and is matched with the inner spline 41 in the inner hole of the middle inner sleeve 4 through the outer spline 32 on the right inner sleeve 3, the right inner sleeve 3 and the inner sleeve can relatively move in the axial direction, and synchronous rotation can be realized through the matching of the inner spline and the outer spline.
Preferably, the outer sleeve is provided with external threads for connecting the elbow at one end close to the left inner sleeve, the outer sleeve is provided with internal threads for connecting the wellhead outer tube at one end close to the right inner sleeve, the right inner sleeve is provided with internal threads for connecting the drill rod at one end close to the outer sleeve end, and the left inner sleeve is provided with external threads for connecting the drill bit at one end close to the outer sleeve end.
Preferably, the side wall surface of the arch notch 51 of the guide sleeve 5 is in smooth transition connection with the end surface of the guide end of the guide sleeve 5; the end face of the guiding end of the guiding sleeve 5 is an arc-shaped face which is obliquely arranged.
Brief description of the invention uses: the state of the angle measurement is shown in fig. 1, the outer sleeve 1 and the right inner sleeve 3 are relatively fixed through the cooperation of the stop screw 11 and the stop groove 311, the while-drilling instrument is put into the inner hole of the outer sleeve 1 through the inner hole opening of the outer sleeve 1 near one end of the right inner sleeve 3, and the while-drilling instrument slides into the arch notch 51 along the end surface after touching the end surface of the guide end of the guide sleeve 5. At this time, the relative position and angle of the while-drilling instrument and the guide sleeve 5 are fixed, the relative position and angle of the guide sleeve 5 and the right inner sleeve 3 are fixed, the relative position and angle of the right inner sleeve 3 and the outer sleeve 1 are fixed, the relative position and angle of the outer sleeve 1 and the bus of the tool face of the drill bit are also determined, and the technical parameters such as the angle of the tool face, the azimuth angle, the vertex angle of the drill bit and the like can be measured by reading the data of the while-drilling instrument.
The state during core drilling is shown in fig. 2, at this time, the outer sleeve 1 is separated from the right inner sleeve 3, and the left inner sleeve 2, the right inner sleeve 3, the middle inner sleeve 4, the guide sleeve 5 and the elastic element 6 are rotatable as a whole with respect to the outer sleeve 1, so that transmission from the drill rod to the drill bit is realized, and core drilling is further realized.
Claims (2)
1. The application method of the automatic locating device for directional coring is applied to the automatic locating device for directional coring;
the method is characterized in that: the automatic locating device for directional coring comprises an outer sleeve, a left inner sleeve, a right inner sleeve, a middle inner sleeve, a guide sleeve and an elastic element;
the outer sleeve is sleeve-shaped with two open ends, a stop screw is fixedly connected to the outer sleeve, and the end head of the stop screw extends into the inner hole of the outer sleeve;
The left inner sleeve and the right inner sleeve are respectively movably arranged at two ends in an inner hole of the outer sleeve through bearings, and a stop groove for embedding a stop screw is formed in the outer wall of the right inner sleeve;
the middle inner sleeve is arranged between the left inner sleeve and the right inner sleeve and is positioned in the inner hole of the outer sleeve, one end of the middle inner sleeve is fixedly connected with the left inner sleeve, and the other end of the middle inner sleeve is movably sleeved with the right inner sleeve through a spline;
The guide sleeve is sleeve-shaped with two open ends, one end of the guide sleeve is a connecting end, the other end of the guide sleeve is a guide end, the guide sleeve is fixedly arranged in an inner hole of the right inner sleeve at the connecting end, the connecting end faces the middle inner sleeve, and an arch notch is formed in the guide end; the side wall surface of the arch notch of the guide sleeve is in smooth transition connection with the end surface of the guide end of the guide sleeve; the end face of the guide end of the guide sleeve is an arc-shaped face which is obliquely arranged;
The elastic element is arranged between the left inner sleeve and the right inner sleeve in a compression mode and is positioned in an inner hole of the middle inner sleeve; when the right inner sleeve is not subjected to external force, the elastic element forces the stop groove of the right inner sleeve to be mutually abutted with the stop screw of the outer sleeve through elasticity, and at the moment, the outer sleeve and the right inner sleeve can not rotate relatively; when the right inner sleeve moves to the left inner sleeve under the action of external force, the elastic element is compressed, the stop groove of the right inner sleeve is separated from the stop screw of the outer sleeve, and the outer sleeve and the right inner sleeve can rotate relatively at the moment;
The end of the outer sleeve, which is close to the left inner sleeve, is provided with an external thread connected with an elbow, the end of the outer sleeve, which is close to the right inner sleeve, is provided with an internal thread connected with an outer pipe of a wellhead, the end of the right inner sleeve, which is close to the end of the outer sleeve, is provided with an internal thread connected with a drill rod, and the end of the left inner sleeve, which is close to the end of the outer sleeve, is provided with an external thread connected with a drill bit;
The method comprises the following steps:
When the angle is measured, the outer sleeve and the right inner sleeve are relatively fixed through the matching of the stop screw and the stop groove, the while-drilling instrument is put into the inner hole of the outer sleeve through the inner hole opening of the outer sleeve near one end of the right inner sleeve, and the while-drilling instrument slides into the arch notch along the end surface after touching the end surface of the guide end of the guide sleeve; at this time, the relative position and angle of the while-drilling instrument and the guide sleeve are fixed, the relative position and angle of the guide sleeve and the right inner sleeve are fixed, the relative position and angle of the right inner sleeve and the outer sleeve are fixed, the relative position and angle of the outer sleeve and a tool face bus of the drill bit are also determined, and the tool face angle, the azimuth angle and the vertex angle of the drill bit are measured by reading the data of the while-drilling instrument;
during core drilling, the outer sleeve is separated from the right inner sleeve, and the left inner sleeve, the right inner sleeve, the middle inner sleeve, the guide sleeve and the elastic element can rotate relative to the outer sleeve as a whole, so that transmission from the drill rod to the drill bit is realized, and core drilling is realized.
2. A method of using the automatic locating device for directional coring as set forth in claim 1, wherein: an annular continuous guide step surface is arranged on the outer wall of the right inner sleeve, one end of the guide step surface is provided with a stop groove, and the other end of the guide step surface spirally extends along the axial direction of the right inner sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810913357.7A CN108843263B (en) | 2018-08-13 | 2018-08-13 | Automatic locating device for directional coring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810913357.7A CN108843263B (en) | 2018-08-13 | 2018-08-13 | Automatic locating device for directional coring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108843263A CN108843263A (en) | 2018-11-20 |
| CN108843263B true CN108843263B (en) | 2024-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810913357.7A Active CN108843263B (en) | 2018-08-13 | 2018-08-13 | Automatic locating device for directional coring |
Country Status (1)
| Country | Link |
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| CN (1) | CN108843263B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779526B (en) * | 2019-03-06 | 2024-02-06 | 谭力诚 | Hydraulic-driven directional deflecting device |
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|---|---|---|---|---|
| GB881713A (en) * | 1959-03-20 | 1961-11-08 | Cementation Co Ltd | Improvements in underwater drilling apparatus |
| CN2039733U (en) * | 1988-12-09 | 1989-06-21 | 中南地质勘探局三○四大队地质仪器厂 | Directioning instrument for core drilling in rock |
| CN102322233A (en) * | 2011-08-19 | 2012-01-18 | 禹畅 | Cobble core drill bit |
| CN203271601U (en) * | 2013-04-16 | 2013-11-06 | 山东春天钻具有限公司 | Coring drill rod with interlayer and drilling tool thereof |
| CN105201418A (en) * | 2015-10-16 | 2015-12-30 | 平安开诚智能安全装备有限责任公司 | Coring drill pipe and coring device |
| CN208669243U (en) * | 2018-08-13 | 2019-03-29 | 谭雄卫 | Orient coring automatic localization device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11045173B2 (en) * | 2014-09-05 | 2021-06-29 | Pave. Llc | Full core biopsy device |
-
2018
- 2018-08-13 CN CN201810913357.7A patent/CN108843263B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB881713A (en) * | 1959-03-20 | 1961-11-08 | Cementation Co Ltd | Improvements in underwater drilling apparatus |
| CN2039733U (en) * | 1988-12-09 | 1989-06-21 | 中南地质勘探局三○四大队地质仪器厂 | Directioning instrument for core drilling in rock |
| CN102322233A (en) * | 2011-08-19 | 2012-01-18 | 禹畅 | Cobble core drill bit |
| CN203271601U (en) * | 2013-04-16 | 2013-11-06 | 山东春天钻具有限公司 | Coring drill rod with interlayer and drilling tool thereof |
| CN105201418A (en) * | 2015-10-16 | 2015-12-30 | 平安开诚智能安全装备有限责任公司 | Coring drill pipe and coring device |
| CN208669243U (en) * | 2018-08-13 | 2019-03-29 | 谭雄卫 | Orient coring automatic localization device |
Non-Patent Citations (2)
| Title |
|---|
| SDQ-91型钻孔定向取芯器的研制;楼日新, 吴光琳;水电站设计(02);全文 * |
| 可回收套管钻井关键技术及其应用;李孟;唐中原;张卫东;;石油机械(06);全文 * |
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| CN108843263A (en) | 2018-11-20 |
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