CN108533213B - Device for plugging and exposing drilling holes in bearing water of covering layer and plugging method of device - Google Patents
Device for plugging and exposing drilling holes in bearing water of covering layer and plugging method of device Download PDFInfo
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- CN108533213B CN108533213B CN201810525690.0A CN201810525690A CN108533213B CN 108533213 B CN108533213 B CN 108533213B CN 201810525690 A CN201810525690 A CN 201810525690A CN 108533213 B CN108533213 B CN 108533213B
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- sleeve
- telescopic sleeve
- plugging
- orifice
- pressurizing
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 238000005553 drilling Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 15
- 238000005056 compaction Methods 0.000 claims description 6
- 239000002344 surface layer Substances 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 14
- 230000000903 blocking effect Effects 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 239000011162 core material Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 238000009933 burial Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
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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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
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- 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 invention discloses a device for plugging a drilled hole in pressure-bearing water of a exposed covering layer. It comprises an in-hole compacting device and a telescopic sleeve; the telescopic sleeve comprises a sleeve upper end, a sleeve connecting part and a sleeve and orifice connecting part; the upper end of the sleeve is provided with a rubber ring, the connecting part of the sleeve is provided with a buckle, the connecting part of the sleeve and the orifice is provided with a rubber ring, and the inner diameter of the connecting part of the sleeve and the orifice is larger than or equal to the outer diameter of the telescopic sleeve; the in-hole compacting device comprises a pressurizing machine, a pressurizing rod and a permeable pressurizing plate, wherein the pressurizing machine is connected to the upper end of the pressurizing rod; the pressurizing rod and the permeable pressurizing plate are both positioned in the telescopic sleeve, the outer diameter of the permeable pressurizing plate is larger than that of the pressurizing rod, and the inner diameter of the telescopic sleeve is larger than that of the permeable pressurizing plate; the length of the pressurizing rod is longer than that of the telescopic sleeve. The invention has the advantage of good hole sealing effect. The invention also discloses a plugging method of the device for plugging the drilling hole of the pressure-bearing water of the exposed covering layer.
Description
Technical Field
The invention relates to the technical field of geotechnical engineering investigation, in particular to a device for plugging and exposing a drilling hole of bearing water of a covering layer. The invention also discloses a plugging method of the device for plugging the drilling hole of the pressure-bearing water of the exposed covering layer.
Background
In the water conservancy and hydropower investigation process, for the relatively complex area of the stratum structure of the overburden, the condition of multilayer pressure-bearing water is often revealed by drilling, and engineering geological problems such as dam foundation leakage, uneven settlement deformation and the like exist in the overburden area, if the pressure-bearing water is subjected to hole sealing treatment improperly, a new leakage channel can be formed by continuous water flow leakage, meanwhile, sediment in the stratum can be further hollowed out, so that the earth surface settlement is caused, and the construction threat to an overlying building is caused, so that the hole sealing treatment of the pressure-bearing water is particularly important. At present, no unified standard and method exist for sealing the hole by using the pressurized water, and in practical engineering application, the filled hole sealing or the grouting plugging of cement slurry is usually carried out by using mud balls and coarse aggregates. However, in the actual plugging process, no matter the mud ball and the coarse aggregate or the cement slurry are adopted for grouting and plugging, the influence of the water surge of the pressure-bearing water in the hole is large, the mud ball and the coarse aggregate cannot be fully compacted due to the upward water surge, the cement slurry is often diluted, and thus the plugging effect is difficult to achieve, the original structure of the stratum of the covering layer is damaged, and hidden danger is left for subsequent design and construction.
Disclosure of Invention
The first purpose of the invention is to provide a device for plugging and exposing the drilling of the bearing water of the covering layer, which is used for stabilizing the bearing water in the telescopic sleeve all the time, preventing the bearing water from gushing, having less damage to the original stratum structure and good hole sealing effect.
The second purpose of the invention is to provide a plugging method for plugging the device for drilling the overburden pressure water.
In order to achieve the first object of the present invention, the present invention has the following technical solutions: the utility model provides a shutoff reveals device of overburden pressurized water drilling, includes downthehole compaction device, its characterized in that: also comprises a telescopic sleeve; the telescopic sleeve comprises a sleeve upper end, a sleeve connecting part and a sleeve and orifice connecting part; the upper end of the sleeve is provided with a rubber ring, the connecting part of the sleeve is provided with a buckle, the connecting part of the sleeve and the orifice is provided with a rubber ring, the rubber ring is in an inverted funnel shape, and the inner diameter of the connecting part of the sleeve and the orifice is larger than or equal to the outer diameter of the telescopic sleeve; the in-hole compacting device comprises a pressurizing machine, a pressurizing rod and a permeable pressurizing plate, wherein the pressurizing machine is connected to the upper end of the pressurizing rod; the pressurizing rod and the permeable pressurizing plate are both positioned in the telescopic sleeve, the outer diameter of the permeable pressurizing plate is larger than the outer diameter of the pressurizing rod and smaller than the bore diameter of the drilling hole, and the inner diameter of the telescopic sleeve is larger than the outer diameter of the permeable pressurizing plate; the length of the pressurizing rod is longer than that of the telescopic sleeve; the telescopic sleeve can be correspondingly adjusted according to the change of the pressure-bearing water head, so that the pressure-bearing water is always stabilized in the telescopic sleeve.
In order to achieve the second object of the present invention, the present invention has the following technical scheme: the plugging method of the device for plugging the pressure-bearing water drill hole of the covering layer is disclosed and is characterized by comprising the following steps of: the method comprises the following steps:
step 1: the telescopic sleeve is grounded at the ground surface orifice, so that the pressure-bearing water is stabilized in the telescopic sleeve, and no pressure-bearing water is ensured to overflow from the orifice of the telescopic sleeve;
step 2: plugging a stratum drilling section of the waterproof bottom plate, throwing a proper amount of waterproof plugging material into a ground surface orifice hole from a telescopic sleeve orifice, and compacting by using an in-hole compacting device;
step 3: plugging the confined aquifer drilling section, throwing a proper amount of permeable skeleton material into a ground surface orifice hole from a telescopic sleeve orifice, and compacting by using an in-hole compacting device;
step 4: plugging a stratum drilling section of the water-proof roof, throwing a proper amount of water-proof plugging material into a ground surface orifice hole from a telescopic sleeve orifice, and compacting by using an in-hole compacting device;
step 5: and (5) cleaning impurities on the surface layer of the orifice, leveling, and sealing the whole hole section.
The invention has the following advantages:
(1) The telescopic sleeve is connected to the orifice, so that the corresponding adjustment can be conveniently carried out according to the change of the water head of the pressure-bearing water, the pressure-bearing water is always stabilized in the telescopic sleeve, and the pressure-bearing water is prevented from gushing;
(2) The pressure-bearing water is stabilized in the telescopic sleeve, so that the subsequent throwing and compaction of the plugging material are facilitated;
(3) The method is simple and convenient to operate, has less damage to the original stratum structure and has good hole sealing effect.
Drawings
Fig. 1 is a structural view of a retractable sleeve according to the present invention.
FIG. 2 is a block diagram of the in-hole compaction apparatus according to the present invention.
FIG. 3 is a schematic diagram of the structure of the present invention.
FIG. 4 is a flow chart of the hole sealing of the bearing water drilling of the cover layer according to the embodiment of the invention.
In the figure, the device comprises a 1-telescopic sleeve, a 1.1-sleeve upper end, a 1.2-sleeve connecting part, a 1.3-sleeve and orifice connecting part, a 2-hole compaction device, a 2.1-pressurizing machine, a 2.2-pressurizing rod and a 2.3-permeable pressurizing plate.
Detailed Description
The following detailed description of the invention is, therefore, not to be taken in a limiting sense, but is made merely by way of example. While making the advantages of the present invention clearer and more readily understood by way of illustration.
As can be seen with reference to the accompanying drawings: the device for plugging the pressure-bearing water drill hole of the exposed covering layer comprises a hole compacting device 2 and a telescopic sleeve 1; the telescopic sleeve comprises a sleeve upper end 1.1, a sleeve connecting part 1.2 and a sleeve and orifice connecting part 1.3; the upper end 1.1 of the sleeve is provided with a rubber ring, the connecting part 1.2 of the sleeve is provided with a buckle, the connecting part 1.3 of the sleeve and the orifice is provided with a rubber ring, the rubber ring is in an inverted funnel shape (as shown in figures 1 and 3), and the inner diameter of the connecting part 1.3 of the sleeve and the orifice is larger than or equal to the outer diameter of the telescopic sleeve 1; the in-hole compacting device 2 comprises a pressurizing machine 2.1, a pressurizing rod 2.2 and a permeable pressurizing plate 2.3, wherein the pressurizing machine 2.1 is connected to the upper end of the pressurizing rod 2.2, and the permeable pressurizing plate 2.3 is connected to the lower end of the pressurizing rod 2.2; the pressurizing rod 2.2 and the water-permeable pressurizing plate 2.3 are both positioned in the telescopic sleeve 1, the outer diameter of the water-permeable pressurizing plate 2.3 is larger than the outer diameter of the pressurizing rod 2.2 and smaller than the bore diameter of a drilling hole, and the inner diameter of the telescopic sleeve 1 is larger than the outer diameter of the water-permeable pressurizing plate 2.3; the length of the pressurizing rod 2.2 is longer than that of the telescopic sleeve 1 (as shown in figures 2 and 3); the telescopic sleeve can be correspondingly adjusted according to the change of the pressure-bearing water head, so that the pressure-bearing water is always stabilized in the telescopic sleeve, and the pressure-bearing water is prevented from gushing.
As can be seen with reference to the accompanying drawings: the plugging method of the device for plugging the pressure-bearing water drill hole of the exposed covering layer comprises the following steps:
step 1: the telescopic sleeve 1 is grounded at the ground surface orifice, so that the pressure-bearing water is stabilized in the telescopic sleeve 1, and no pressure-bearing water is ensured to overflow from the orifice of the telescopic sleeve 1;
step 2: plugging a stratum drilling section of the waterproof bottom plate, throwing a proper amount of waterproof plugging material (such as mud balls) into a ground surface orifice hole from a pipe orifice of the telescopic sleeve 1, and compacting by using an in-hole compacting device 2;
step 3: plugging a confined aquifer drilling section, throwing a proper amount of permeable skeleton material (such as gravel pebbles) into a ground surface orifice hole from the orifice of the telescopic sleeve 1, and compacting by using an in-hole compacting device 2;
step 4: plugging a stratum drilling section of the waterproof roof, throwing a proper amount of waterproof plugging material (such as mud balls) into a ground surface orifice hole from a pipe orifice of the telescopic sleeve 1, and compacting by using an in-hole compacting device 2;
step 5: and (5) cleaning impurities on the surface layer of the orifice, leveling, and sealing the whole hole section.
Examples
The invention will now be described in detail with reference to an embodiment in which a borehole in which a confined aquifer is exposed is plugged, and the method of the invention is also useful for plugging other boreholes in which a confined aquifer is exposed.
A reveal confined aquifer drilling hole in the plugging drilling hole comprises the following steps:
step 1: a confined aquifer is disclosed in the drilling process, and the phenomenon that the confined water gushes from an orifice of the ground surface occurs;
step 2: the telescopic sleeve 1 is connected to the ground surface orifice, the lower end of the telescopic sleeve 1 is positioned at the upper end of the ground surface orifice, and the telescopic sleeve 1 is operated (stretched and contracted) to monitor and control the pressure-bearing water in a full period of time so as to stabilize the pressure-bearing water in the telescopic sleeve 1;
step 3: after the water head is stable, selecting a proper amount of base plate water-blocking materials (cores revealed by the layer of drilling can be used for making mud balls) to be put into the drilling holes from the pipe orifice of the telescopic sleeve 1 in batches according to the lithology and the burial depth of the base plate water-blocking layer, and compacting by using the in-hole compacting device 2 until the blocking of the water-blocking base plate drilling section is completed;
step 4: selecting a proper amount of permeable skeleton material (gravel pebbles revealed by original drilling) to be thrown into a hole from the pipe orifice of the telescopic sleeve 1, and compacting by using an in-hole compacting device 2 to finish plugging the drilling section of the confined aquifer;
step 5: selecting proper amount of roof water-proof blocking material (core disclosed by the layer of drilling can be used as mud balls) to be put into the drilling holes from the pipe orifice of the telescopic sleeve 1 in batches, and compacting by using the in-hole compacting device 2 until the blocking of the water-proof roof drilling section is completed;
step 6: the surface layer of the orifice is cleaned and leveled, and the hole sealing of the whole hole section is completed (as shown in figure 4);
d in fig. 4 represents a water-resistant roof; e represents a confined aquifer; f represents a waterproof bottom plate; a represents a water-blocking sealing material (mud ball); b represents a water permeable skeletal material (gravel pebbles); c represents a water blocking material (mud ball).
Conclusion: the device is adopted to seal the drilling holes exposing the bearing water of the covering layer, the telescopic sleeve is used for stabilizing the bearing water in the telescopic sleeve in the whole time period, the compaction device is used for sealing the corresponding core materials of the drilling hole sections at different layers, after the sealing is finished, the orifice is free from the overflow of the bearing water, and the nearby drilling field platform is free from the water soaking zone, so that the sealing is finished; the method is simple and convenient to operate, has less damage to the original stratum structure and has good hole sealing effect.
Other non-illustrated parts are known in the art.
Claims (2)
1. The utility model provides a shutoff reveals device of overburden pressurized water drilling, includes downthehole compaction device (2), its characterized in that: also comprises a telescopic sleeve (1); the telescopic sleeve comprises a sleeve upper end (1.1), a sleeve connecting part (1.2) and a sleeve and orifice connecting part (1.3); the upper end (1.1) of the sleeve is provided with a rubber ring, the connecting part (1.2) of the sleeve is provided with a buckle, the connecting part (1.3) of the sleeve and the orifice is provided with a rubber ring, the rubber ring is in an inverted funnel shape, and the inner diameter of the connecting part (1.3) of the sleeve and the orifice is larger than or equal to the outer diameter of the telescopic sleeve (1); the in-hole compacting device (2) comprises a pressurizing machine (2.1), a pressurizing rod (2.2) and a permeable pressurizing plate (2.3), wherein the pressurizing machine (2.1) is connected to the upper end of the pressurizing rod (2.2), and the permeable pressurizing plate (2.3) is connected to the lower end of the pressurizing rod (2.2); the pressurizing rod (2.2) and the permeable pressurizing plate (2.3) are both positioned in the telescopic sleeve (1), the outer diameter of the permeable pressurizing plate (2.3) is larger than the outer diameter of the pressurizing rod (2.2) and smaller than the bore diameter of the drilling hole, and the inner diameter of the telescopic sleeve (1) is larger than the outer diameter of the permeable pressurizing plate (2.3); the length of the pressurizing rod (2.2) is longer than that of the telescopic sleeve (1); the telescopic sleeve can be correspondingly adjusted according to the change of the pressure-bearing water head, so that the pressure-bearing water is always stabilized in the telescopic sleeve.
2. The plugging method of the device for plugging and revealing the drilling of the overburden pressurized water according to claim 1, wherein the plugging method comprises the following steps: the method comprises the following steps:
step 1: the telescopic sleeve (1) is grounded at the ground surface orifice, so that the pressure-bearing water is stabilized in the telescopic sleeve (1), and no pressure-bearing water is ensured to overflow from the orifice of the telescopic sleeve (1);
step 2: plugging a stratum drilling section of the waterproof bottom plate, throwing a proper amount of waterproof plugging material into a ground surface orifice hole from a pipe orifice of a telescopic sleeve (1), and compacting by using an in-hole compacting device (2);
step 3: plugging a confined aquifer drilling section, throwing a proper amount of permeable framework material into a ground surface orifice hole from a pipe orifice of a telescopic sleeve (1), and compacting by using an in-hole compacting device (2);
step 4: plugging a stratum drilling section of the water-proof roof, throwing a proper amount of water-proof plugging material into a ground surface orifice hole from a pipe orifice of a telescopic sleeve (1), and compacting by using an in-hole compacting device (2);
step 5: and (5) cleaning impurities on the surface layer of the orifice, leveling, and sealing the whole hole section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810525690.0A CN108533213B (en) | 2018-05-28 | 2018-05-28 | Device for plugging and exposing drilling holes in bearing water of covering layer and plugging method of device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810525690.0A CN108533213B (en) | 2018-05-28 | 2018-05-28 | Device for plugging and exposing drilling holes in bearing water of covering layer and plugging method of device |
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| Publication Number | Publication Date |
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| CN108533213A CN108533213A (en) | 2018-09-14 |
| CN108533213B true CN108533213B (en) | 2023-06-23 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112982364B (en) * | 2021-01-26 | 2022-12-13 | 中国化学工程第三建设有限公司 | Plugging device and method for basic geological exploration Kong Chongshui |
| CN114622586A (en) * | 2022-02-15 | 2022-06-14 | 陕西中能煤田有限公司 | Method for blocking water in vertical drilling under pressure |
| CN117108191B (en) * | 2023-09-12 | 2024-05-17 | 四川省建筑科学研究院有限公司 | Drilling operation method for high-pressure water stratum |
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| CN108533213A (en) | 2018-09-14 |
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