CN209195349U - Twin packer delamination pour slurry antipriming - Google Patents
Twin packer delamination pour slurry antipriming Download PDFInfo
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- CN209195349U CN209195349U CN201821509734.2U CN201821509734U CN209195349U CN 209195349 U CN209195349 U CN 209195349U CN 201821509734 U CN201821509734 U CN 201821509734U CN 209195349 U CN209195349 U CN 209195349U
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Abstract
A kind of twin packer delamination pour slurry antipriming, including well casing, grouting device and packing device, well casing includes real pipe, filter pipe and grout outlet, grouting device includes slush pump, grouting pipe and Grouting Pipe, packing device includes high pressure gas cylinder, high pressure gas pipeline, decompression table, upper packer and lower packet, grouting pipe protrudes into well casing inner cavity, grouting pump, grouting pipe, upper packer, Grouting Pipe and lower packet are sequentially connected, it is stifled that lower packet lower end connects bottom, the position of Grouting Pipe corresponds to grout outlet, the packing element cavity of upper packer and the packing element cavity of lower packet are ganged up through high pressure gas pipeline B, high pressure gas pipeline A is communicated at the top of the packing element cavity of upper packer, the arrival end of high pressure gas pipeline A connects decompression table, decompression table connects high pressure gas cylinder.High pressure gas cylinder is opened, is inflated to upper packer and lower packet, it is made to be bonded fitting completely with real inside pipe wall, cement slurry is injected to the gap that sealing position has been filled with gravel material by slush pump and carries out layering sealing.
Description
Technical field
The utility model relates to survey for the purpose of locating hydrogeological resources exploration engineering field, a kind of especially twin packer delamination pour slurry sealing
Device.
Background technique
In survey for the purpose of locating hydrogeological resources and groundwater exploration, the detailed water of underground water is accurately obtained by being layered bailing test
Literary geologic parameter, the layering in water-bearing layer is portrayed in realization, for objectively recognizing hydrogeologic condition, reasonable generalization hydrogeology
Model, relatively accurately evaluating the premise that groundwater resources are of crucial importance, and implement layering bailing test is to implement
It is layered hydrogeological hole.
Traditional layering hydrogeology hole well completion method is mainly kelp sealing, expanded rubber sealing and clay ball sealing.
Kelp and expanded rubber sealing belong to provisional sealing, have certain water-stagnating effect, but at high cost, process is many and diverse, pressure-bearing
Property is looked into, and water-stagnating effect is unstable, is not suitable for permanent leaking water.It is most common that clay ball sealing is that hydrogeological hole separates into well
Method is by filling gravel material and clay ball to outside well casing, and at low cost, water-stagnating effect is good, but in fine grained stratum or probing knot
Structure caving ground separate into well and easily occurs that the backfill of gravel material is collapsed, measures backfill position inaccuracy or be unable to measure in hole
Highly, gravel material backfill height is more than that accidents, the influences such as clay ball " bridge formation " caused by sealing position and drilling necking down separate into well
Quality, or even drilling is caused to be scrapped, meanwhile, clay ball hydration time is short, is not also suitable for big depth hydrogeology hole and separates into
Well.Therefore, it needs to develop a kind of Novel layered and realizes the hydrogeology efficient fast hierarchical Cheng Jing in hole at well technology.
Utility model content
The purpose of this utility model is to provide a kind of twin packer delamination pour slurry antiprimings, eliminate and fill out clay ball
Process is changed to complete opening and fills out gravel, enormously simplifies and separates into well construction difficulty, and construction efficiency greatly improved, and sealing position is quasi-
Really, sealing is reliable.
To reach above-mentioned purpose, the utility model uses following technical scheme:
A kind of twin packer delamination pour slurry antipriming, it includes well casing, grouting device and packing device, which includes
Real pipe, filter pipe and grout outlet, the grouting device include slush pump, grouting pipe and Grouting Pipe, which includes high pressure
Gas cylinder, decompression table, high pressure gas pipeline A, upper packer, high pressure gas pipeline B and lower packet, the grouting pipe protrude into the well casing
The upper end of inner cavity, the grouting pipe connects slush pump, and the lower end of the grouting pipe is connected to the central tube of the upper packer, envelope on this
It is connected to the central tube of the lower packet by Grouting Pipe every the central tube of device, the lower end connection bottom of the lower packet is stifled, the note
Slurry pipe corresponds to the grout outlet, and the packing element cavity of the upper packer and the packing element cavity of the lower packet are concatenated through high pressure gas pipeline B
Connection, is communicated with high pressure gas pipeline A at the top of the packing element cavity of the upper packer, the arrival end connection of high pressure gas pipeline A
Decompression table, the decompression table connect high pressure gas cylinder.
The lower end of the grouting pipe connects the pipe nipple of the upper packer, and the lower end of the central tube of the upper packer connects note
Starch the upper end of pipe, the pipe nipple of the lower end connection lower packet of the Grouting Pipe, the lower ending opening connection of the central tube of the lower packet
The bottom is stifled.
Preferably, high-pressure rubber pipe is connected between the slush pump and the grouting pipe.
Preferably, the grout outlet is bridge-type screen pipe, and hole matches with gravel gauge lattice, so that gravel material cannot be into
Enter in well casing.
The grout outlet is corresponding with the height of the Grouting Pipe, and the height of the grout outlet is 1-1.5 meters, the Grouting Pipe
Height is 1-1.5 meters.
The utility model has the beneficial effects that
1, the delamination pour slurry antipriming of the utility model changes traditional hydrogeological hole and separates into well process flow, goes
In addition to " gravel and sealing are filled out in layering " this boring accidents high-incidence stage, will separate into well process modifications is drilling → down tube → complete opening
Gravel → well-flushing → packing slip casting layering sealing is filled out, drilling is effectively reduced and separates into well accident rate.
2) sealing target zone can be isolated for the twin packer delamination pour slurry antipriming of the utility model, pass through slush pump
Cement slurry sealing material is injected, sealing position is accurate, and water-stagnating effect is reliable.
3) the utility model twin packer delamination pour slurry antipriming is reusable, ensure that the construction of low cost；
4) the utility model twin packer delamination pour slurry antipriming can satisfy the layering of the hydrogeological hole within 1000m
Cheng Jing；
5) the utility model twin packer delamination pour slurry antipriming, which has, insulates reliable, off-load conveniently, strong operability
The features such as.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
1: well casing, 11: real pipe, 12: filter pipe, 13: grout outlet, 21: water barrier, 22: water-bearing layer, 31: slush pump, 32:
Grouting pipe, 33: Grouting Pipe, 34: high-pressure rubber pipe, 41: high pressure gas cylinder, 42: decompression table, 43: high pressure gas pipeline A, 43': high pressure
Gas pipeline B, 44: upper packer, 45: lower packet, 46: bottom is stifled.
Specific embodiment
As shown in Figure 1, a kind of twin packer delamination pour slurry antipriming of the utility model, it includes well casing, slip casting dress
It sets and packing device, the well casing includes real pipe 11, filter pipe 12 and grout outlet 13, the corresponding water barrier 21 of the grout outlet 13, the filter
Corresponding the drawn water water-bearing layer 22 of water pipe, the grouting device include slush pump 31, grouting pipe 32 and Grouting Pipe 33, packing dress
It sets including high pressure gas cylinder 41, decompression table 42, high pressure gas pipeline A43, upper packer 44, high pressure gas pipeline B43' and lower packet
45, which protrudes into the inner cavity of the well casing 1, and the upper end of the grouting pipe 32 connects slush pump 31, the grouting pipe 32
Lower end connect the pipe nipple of the upper packer 44, the pipe nipple of the lower end of the central tube of the upper packer 44 and the lower packet 45 it
Between connect Grouting Pipe 33, the lower end connection bottom stifled 46 of the central tube of the lower packet 45, the corresponding grout outlet 13 of the Grouting Pipe 33,
The packing element cavity of the upper packer 44 is connected to the packing element cavity of the lower packet 45 through high pressure gas pipeline B43 concatenation, on this
The top of the packing element cavity of packer 44 is also communicated with high pressure gas pipeline A43 ', and the arrival end connection of high pressure gas pipeline A43 ' subtracts
Table 42 is pressed, which connects high pressure gas cylinder 41.
Upper packer is identical with the structure of lower packet, be selected as the patent No. 201820351644.9 announced it is a kind of excessively electric
Cable crossed gas pipeline packer.The packer axisymmetricly shape, including pipe nipple, top connection, central tube, packing element and air supported head；
The pipe nipple is connected with the central tube by tubing thread, which is set in the tubing thread periphery；The packing element is set in the center
In the middle part of pipe, by screwed connection, which passes through screwed connection with the air supported head for one end of the packing element and the top connection,
The air supported head is connect with the basepipe seal；The upper end of the top connection is connect with the pipe nipple by tubing thread, and lower end is inside and outside two
Layer structure, internal layer lower end are connect with the central tube top by tubing thread, and outer layer lower end and the packing element top pass through screwed connection,
The packing element is set in the center pipe surface, is concentric type structure；The air supported head is similarly ectonexine structure, internal layer and the central tube
It is tightly connected, outer layer and the packing element bottom end pass through screwed connection.
In order to operate more safety and conveniently, connect high-pressure rubber pipe between the slush pump 31 and the grouting pipe 32
34。
It is preferred that the grout outlet 13 is bridge-type screen pipe, it is welded between two sections of real pipes 11, the hole of the bridge-type screen pipe
Gap matches with gravel gauge lattice, so that gravel material not can enter in well casing.
Preferably, the height of the grout outlet is 1-1.5 meters.Preferably, the length of the Grouting Pipe 33 is 1-1.5 meters.
The application method of twin packer delamination pour slurry antipriming is described below, in the case where ensureing equipment safety, first
Open high pressure gas cylinder 41, make high pressure gas through decompression table 42 decompression after enter high-pressure air pipe B43 ', after sequentially enter upper packer
The packing element cavity of 44 packing element cavity, high-pressure air pipe A43 and lower packet 45, so that the upper packer 44 and the lower packet
Pressure rise in 45 packing element cavitys and after reaching a setting pressure value so that the upper packer 44 and the lower packet 45 with
11 inner wall of real pipe of the well casing 1 is bonded completely；Then the 31 note clear water of slush pump for starting earth's surface, if clear water can be with normal circulation
(illustrate that Grouting Pipe and grout outlet to just, can squeeze into clear water, if the abnormal circulation of clear water, illustrates the corresponding real pipe position of Grouting Pipe, because
This cannot squeeze into clear water) mud being stirred can be injected grouting pipe, it is flowed out by the Grouting Pipe, and injected by grout outlet
To outside the well casing, until all (volume of the cement slurry volume substantially depends between sealing segment length and gravel material for injection by mud amount
Porosity calculates), cement slurry all after injection, continues to be pumped into clear water into grouting pipe with slush pump, makes to remain in slip casting and lead
All injection sealing section, the clear water amount volume being pumped into are the volume of grouting pipe inner cavity and ground in tripping in well casing to cement slurry in pipe
Table connects high-pressure rubber pipe cavity volume summation；Slip casting terminates, closing slush pump, to cement initial set after 2-3h, dismantles high-pressure air pipe
Line and decompression meter connector, discharge high pressure gas make the inner cavity of upper packer and lower packet shrink deblocking, lift out and be located at well casing
The grouting device and packing device of inner cavity；The grouting device and packing device that lift out positioned at well casing inner cavity are cleaned, prevented
Sealing mud solidifies injury device in the device.
Preferably, which is 0.6-0.8MPa, and the supply gas pressure of the upper packer and lower packet is packing
The sum of hydraulic pressure that device is born and setting pressure value.
Preferably, the main component of the cement slurry is cement, water and bentonite, and wherein the ratio of mud is 0.5-0.6, swelling
Soil is 3%, so that the mud has mobility, and meets sealing demand.
The technique of utility model approximately as: after drilling, well casing is installed, the grout outlet of well casing is corresponding required
Water barrier position section, filter pipe is corresponding in required water-bearing layer position section, and well casing installation terminates；Complete opening is carried out to fill out gravel and wash
Well fills out that gravel material is more closely knit, and later period gravel material no longer sinks so that enclosing；After equipment inspection can be safely operated, the utility model
Antipriming is started to work, and is injected cement slurry to the gap that sealing position has been filled with gravel material by slush pump and is carried out layering sealing,
Slip casting terminates；Cement slurry initial set is waited, proposes equipment in well；Its sealing position is accurate, and water-stagnating effect is reliable, and can effectively drop
Low drilling separates into well accident rate, provides technical support to be layered the efficient quick well formation in hydrogeological hole.
Claims (5)
1. a kind of twin packer delamination pour slurry antipriming, it is characterised in that: it includes well casing, grouting device and packing device,
The well casing includes real pipe, filter pipe and grout outlet, which includes slush pump, grouting pipe and Grouting Pipe, packing dress
It sets and is stretched including high pressure gas cylinder, decompression table, high pressure gas pipeline A, upper packer, high pressure gas pipeline B and lower packet, the grouting pipe
Enter the inner cavity of the well casing, the upper end of the grouting pipe connects slush pump, and the lower end of the grouting pipe is connected in the upper packer
Heart pipe, the central tube of the upper packer are connected to the central tube of the lower packet by Grouting Pipe, and the lower end of the lower packet connects
It is stifled to connect bottom, which corresponds to the grout outlet, and the packing element cavity of the upper packer and the packing element cavity of the lower packet are through high pressure
Gas pipeline B concatenation connection, is communicated with high pressure gas pipeline A at the top of the packing element cavity of the upper packer, high pressure gas pipeline A's
Arrival end connects decompression table, which connects high pressure gas cylinder.
2. twin packer delamination pour slurry antipriming according to claim 1, it is characterised in that: under the grouting pipe
End connects the pipe nipple of the upper packer, the upper end of the lower end connection Grouting Pipe of the central tube of the upper packer, under the Grouting Pipe
The pipe nipple of end connection lower packet, it is stifled that the lower ending opening of the central tube of the lower packet connects the bottom.
3. twin packer delamination pour slurry antipriming according to claim 1 or 2, it is characterised in that: the slush pump with
High-pressure rubber pipe is connected between the grouting pipe.
4. twin packer delamination pour slurry antipriming according to claim 3, it is characterised in that: the grout outlet is bridge-type
Screen pipe, hole match with gravel gauge lattice, so that gravel material not can enter in the well casing.
5. twin packer delamination pour slurry antipriming according to claim 4, it is characterised in that: the grout outlet with it is described
The height of Grouting Pipe is corresponding, and the height of the grout outlet is 1-1.5 meters, and the height of the Grouting Pipe is 1-1.5 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821509734.2U CN209195349U (en) | 2018-09-14 | 2018-09-14 | Twin packer delamination pour slurry antipriming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821509734.2U CN209195349U (en) | 2018-09-14 | 2018-09-14 | Twin packer delamination pour slurry antipriming |
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| Publication Number | Publication Date |
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| CN209195349U true CN209195349U (en) | 2019-08-02 |
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| CN201821509734.2U Active CN209195349U (en) | 2018-09-14 | 2018-09-14 | Twin packer delamination pour slurry antipriming |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109138904A (en) * | 2018-09-14 | 2019-01-04 | 中国地质调查局水文地质环境地质调查中心 | Twin packer delamination pour slurry antipriming and its application method |
| CN111561310A (en) * | 2020-05-09 | 2020-08-21 | 北京慧坤科技有限公司 | Hydrogeology long-term drilling layering monitoring devices that sees |
| CN115627786A (en) * | 2022-12-07 | 2023-01-20 | 中国冶金地质总局第三地质勘查院 | Method for plugging waste water taking well |
-
2018
- 2018-09-14 CN CN201821509734.2U patent/CN209195349U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109138904A (en) * | 2018-09-14 | 2019-01-04 | 中国地质调查局水文地质环境地质调查中心 | Twin packer delamination pour slurry antipriming and its application method |
| CN109138904B (en) * | 2018-09-14 | 2024-02-20 | 中国地质调查局水文地质环境地质调查中心 | Double-packer layered grouting water stop device and use method thereof |
| CN111561310A (en) * | 2020-05-09 | 2020-08-21 | 北京慧坤科技有限公司 | Hydrogeology long-term drilling layering monitoring devices that sees |
| CN115627786A (en) * | 2022-12-07 | 2023-01-20 | 中国冶金地质总局第三地质勘查院 | Method for plugging waste water taking well |
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