CN111852468B - Single-well multilayer sampling device for ground leaching well site - Google Patents
Single-well multilayer sampling device for ground leaching well site Download PDFInfo
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- CN111852468B CN111852468B CN202010786507.XA CN202010786507A CN111852468B CN 111852468 B CN111852468 B CN 111852468B CN 202010786507 A CN202010786507 A CN 202010786507A CN 111852468 B CN111852468 B CN 111852468B
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- 238000005070 sampling Methods 0.000 title claims abstract description 102
- 238000002386 leaching Methods 0.000 title claims abstract description 28
- 238000011065 in-situ storage Methods 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims 2
- 229910052770 Uranium Inorganic materials 0.000 abstract description 9
- 238000005065 mining Methods 0.000 abstract description 9
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 238000012544 monitoring process Methods 0.000 description 12
- 239000007788 liquid Substances 0.000 description 11
- 238000005086 pumping Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000005553 drilling Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000012864 cross contamination Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
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Classifications
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- 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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/081—Obtaining fluid samples or testing fluids, in boreholes or wells with down-hole means for trapping a fluid sample
- E21B49/082—Wire-line fluid samplers
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/28—Dissolving minerals other than hydrocarbons, e.g. by an alkaline or acid leaching agent
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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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)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a single-well multilayer sampling device for an in-situ leaching well site, which relates to the technical field of in-situ leaching uranium mining, and comprises a layered sampling setting base and a plurality of layered samplers, wherein the layered sampling setting base comprises a plurality of packers and a plurality of base bodies which are sequentially connected from top to bottom, each base body comprises a cylinder base body and a conical step connected to the lower end of the cylinder base body, the inner diameters of the cylinder base bodies are sequentially reduced from top to bottom, a plurality of first sampling openings are formed in each cylinder base body, each cylinder base body is sealed by one packer, each layered sampler comprises a sampler body, a sealing component, a sampling pump and a counterweight, one sampler body is structurally matched with one base body, the sampler component is detachably arranged at the bottom end of the sampler body, the sampling pump is arranged at the top of the sampler body, the sealing component is arranged on the upper part of the outer wall of the sampler body, and a plurality of second sampling openings are formed in the sampler body. The device has the advantages of simple structure, convenient use, low cost and convenient popularization and use.
Description
Technical Field
The invention relates to the technical field of in-situ leaching uranium mining, in particular to a single-well multilayer sampling device for an in-situ leaching well site.
Background
In an in-situ leaching uranium mining flow field, the hydraulic gradient between the pumping holes is generally 2 to 3 orders of magnitude larger than the original hydraulic gradient of underground water, a non-uniform flow zone is formed between the leaching solution from the pumping hole to the pumping hole, the connecting line of the pumping hole filters is taken as an axis, and the water flow speed far away from the axis is gradually reduced. The water flow speed is reduced by 1-2 orders of magnitude within about 10m in the vertical direction, the chemical reaction is weakened along with the reduction of the water flow speed, and the solute dispersion effect is enhanced. The in-situ leaching uranium mining flow field is like a black box, only the inlet and the outlet of leaching liquid can be mastered at present, and the internal cognition of the flow field is in a generalization stage. The most direct methods for obtaining solute flow rate and concentration data are site-specific manometry and site-specific sampling. The existing monitoring holes of the in-situ leaching uranium mining well site are mostly spare process holes, and the filter is generally 4m-8m long. The pressure measured by the observation hole and the sampled sample are both average pressure and mixed concentration, so that the change of flow rate and concentration cannot be reflected, and the monitoring hole objectively causes the leaching solution to be mixed and retained at the position, so that the intervention influence is caused on the in-situ leaching uranium mining flow field. The in-service water level concentration observation structure of the in-situ leaching uranium mining mine is shown in fig. 3, and is sequentially provided with a liquid injection well 14, a sampling monitoring well 15 and a liquid pumping well 16, wherein an upper water-stop layer 17, an ore-containing water-containing layer 18 and a lower water-stop layer 19 are sequentially arranged in a stratum from top to bottom, liquid between the lower water-stop layer 19 and the ore-containing water-containing layer 18, liquid in the ore-containing water-containing layer 18 and liquid between the upper water-stop layer 17 and the ore-containing water-containing layer 18 flow towards one end of the liquid pumping well 16 from one end of the liquid injection well 14, and pass through the sampling monitoring well 15 during flowing.
At present, advanced layered monitoring and fixed-depth sampling devices at home and abroad are mainly classified into two types: a double-plugging fixed-depth monitoring and sampling system and a Westbay underground water multilayer monitoring system.
Double-sealing plug depth-fixing monitoring and sampling system: during the use with two stopper depthkeeping monitoring and sampler transfer to the target horizon, but vertical rivers in the cuttable drilling after aerifing for the stopper, use the sampling pump of integrated inside this moment can be to the target horizon for realizing the sampling of drawing water, also have the technique at present to realize the real-time supervision to fluid pressure. The device is suitable for bare holes of bedrock, and when the device is used in a sieve tube, the fluid in the tube can be fully mixed due to the up-and-down movement of the device; when the expanded screen pipe is pumped, the fluid of the external packing layer of the screen pipe can be fully mixed, and the purpose of sampling at fixed depth can not be achieved. In addition, for some screens, the dual plugging system does not ensure a complete seal. When the pressure sensor is used for a naked hole, the vertical pressure distribution of an aquifer can be tested; not feasible for use with a screen. Layering is accomplished temporarily in the hole, and sample contamination between different levels is inevitable whether in a bare hole or a sieve tube.
Westbay groundwater multilayer monitoring system: the double plugging system was fixed to the borehole wall and a series of pumping and sampling devices were developed for these specialty pipes. Meanwhile, a matching technology is developed, the real-time monitoring of the multilayer underground water pressure can be realized, and the method is suitable for the bare hole of the bedrock. And a Westbay special pipe is put into the hole, the stratum is permanently sealed, cross contamination can be completely avoided, special equipment is used for sampling and measuring in the later stage, and pressure distribution of each stratum can be tested in real time.
The two layered depth-fixed sampling systems are complex in process and high in price, and the application of the two layered depth-fixed sampling systems in the field of uranium ore in-situ leaching is limited. Therefore, the invention aims to develop a simple and practical field multilayer sampling device for the ground immersion well on the basis of the current ground immersion drilling technology.
Disclosure of Invention
In order to solve the technical problems, the invention provides the single-well multilayer sampling device for the in-situ leaching well site, which has the advantages of simple structure, convenience in use, low cost and convenience in popularization and use.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a single-well multilayer sampling device for an in-situ leaching well site, which comprises a layered sampling setting base and a plurality of layered samplers, wherein the layered sampling setting base comprises a plurality of packers and a plurality of base bodies sequentially connected from top to bottom, each base body comprises a cylindrical base body and a conical step, the conical step is connected to the lower end of the cylindrical base body, the inner diameters of the cylindrical base bodies are sequentially reduced from top to bottom, a plurality of first sampling openings are formed in each cylindrical base body, each cylindrical base body is sealed by one packer, each layered sampler comprises a sampler body, a sealing component, a sampling pump and a counterweight, one sampler body is structurally matched with one base body, the counterweight is detachably arranged at the bottom end of the sampler body, the sampling pump is arranged at the top of the sampler body, the sealing component is arranged at the upper part of the outer wall of the sampler body, a plurality of second sampling openings are formed in the sampler body, and the second sampling openings are arranged below the sealing component.
Preferably, the sampler body include the cylinder base member with set up in the cone of cylinder base member lower extreme, the weight connect in the cone bottom, the cylinder base member is hollow structure, the sample pump is fixed in cylinder base member top, seal assembly set up in cylinder base member outer wall upper portion, be provided with a plurality of on the cylinder base member the second sample opening, one the cylinder base member and one cylinder base member structure phase-match, one the cone with one the toper stair structure phase-match.
Preferably, the weight part is in threaded connection with the bottom of the conical body, and the weight part is a metal cylinder.
Preferably, a sealing rubber gasket is sleeved on the conical body.
Preferably, be provided with a plurality ofly on the cylinder base member second sample opening, second sample opening is the annular opening of slot formula, and is a plurality of second sample opening is followed the axial of cylinder base member evenly sets up.
Preferably, the sampling pump further comprises a cable and an aviation connector, wherein the cable is connected with the sampling pump through the aviation connector.
Preferably, each cylindrical base body is provided with a plurality of first sampling openings, each first sampling opening is a slit-type annular opening, and the plurality of first sampling openings are uniformly arranged along the axial direction of the cylindrical base body.
Preferably, the seal assembly comprises two seal rings.
Preferably, the base body is provided in three.
Compared with the prior art, the invention has the following technical effects:
the invention provides a single-well multilayer sampling device for an underground leaching well site, which comprises a layered sampling setting base and a plurality of layered samplers, wherein the layered sampling setting base comprises a plurality of packers and a plurality of base bodies sequentially connected from top to bottom, each base body comprises a cylindrical base body and a conical step, a first sampling opening is formed in each cylindrical base body, each layered sampler comprises a sampler body, a sealing component, a sampling pump and a counterweight, one sampler body is structurally matched with one base body, the bottom end of each sampler body is connected with the counterweight, the sealing component is arranged on the upper portion of the outer wall of the sampler body, and the sampler body is provided with a plurality of second sampling openings. During the use, the horizon that takes a sample as required selects suitable stratified sampling ware to descend, and stratified sampling ware gets into corresponding base body under the effect of counterweight, through ground control sampling pump start-up sample, after the sample is accomplished with the stratified sampling ware lift to ground can, can realize soaking well site single well multilayer sample from this, provide technical support for meticulous description formation fluid flow and solute transport law. The single-well multilayer sampling device for the ground leaching well site has the advantages of simple structure, simplicity and convenience in use, low cost and convenience in popularization and use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a layered sampling setting base in a single-well multi-layer sampling device of an in-situ leaching well site provided by the invention;
FIG. 2 is a schematic structural diagram of a layered sampler in the single-well multi-layer sampling device of the in-situ leaching well site provided by the invention;
FIG. 3 is a schematic diagram of an observation structure of the concentration of the active water level of an in-situ leaching uranium mining mine in the prior art.
Description of reference numerals: 1. a cylindrical base; 2. a tapered step; 3. a first sampling opening; 4. a packer; 5. a cylindrical base; 6. a conical body; 7. a seal ring; 8. a second sampling opening; 9. sealing the rubber gasket; 10. a counterweight; 11. a sampling pump; 12. an aircraft joint; 13. a cable; 14. a liquid injection well; 15. sampling a monitoring well; 16. a liquid pumping well; 17. an upper water barrier layer; 18. an ore-containing aquifer; 19. a lower water barrier layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a single-well multilayer sampling device for an in-situ leaching well site, which has the advantages of simple structure, convenience in use, low cost and convenience in popularization and use.
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description thereof.
As shown in fig. 1 and fig. 2, this embodiment provides a single well multilayer sampling device in ground soaking well site, including layering sample setting base and a plurality of layering sampler, layering sample setting base includes a plurality of packers 4 and a plurality of base body that from top to bottom connects gradually, base body includes drum base member 1 and toper step 2, toper step 2 is connected in drum base member 1 lower extreme, two adjacent drum base members 1 are connected to toper step 2, the internal diameter of a plurality of drum base members 1 reduces from top to bottom in proper order, be provided with a plurality of first sample opening 3 on each drum base member 1, each drum base member 1 seals through a packer 4 and separates, layering sampler includes the sampler body, seal assembly, sampling pump 11 and counterweight 10, a sampler body and a base body structural phase-match, counterweight 10 detachably installs in sampler body bottom, sampling pump 11 sets up in sampler body top, seal assembly sets up on sampler body outer wall upper portion, be provided with a plurality of second sample opening 9 on the sampler body, second sample opening 9 sets up in the seal assembly below.
During the use, the position of taking a sample as required selects suitable stratified sampling ware to transfer, stratified sampling ware gets into corresponding base body under the effect of counterweight 10, through the 11 start-up samples of ground control sampling pump, the sample accomplish the back with the stratified sampling ware lift to ground can, base body cooperation a plurality of not equidimension stratified sampling ware of a plurality of different positions in this embodiment, can conveniently realize the sample of different positions, can realize soaking well site single well multilayer sample from this, provide technical support for meticulous portrayal stratum fluid flow and solute migration law. The single-well multilayer sampling device for the ground leaching well site in the embodiment has the advantages of simple structure, simplicity and convenience in use, low cost and convenience in popularization and use.
As shown in fig. 2, the sampler body includes cylindrical base member 5 and sets up in conical body 6 of cylindrical base member 5 lower extreme, weight member 10 is connected in 6 bottoms of conical body, cylindrical base member 5 is hollow structure, sample pump 11 is fixed in 5 tops of cylindrical base member, seal assembly sets up in 5 outer wall upper portions of cylindrical base member, be provided with a plurality of second sample opening 9 on the cylindrical base member 5, a cylindrical base member 5 and a drum base member 1 structure phase-match, the cylindrical base member 5 of stratified sampling ware has different diameters to different sample horizons promptly, a conical body 6 and a toper step 2 structure phase-match.
Specifically, the weight member 10 is in threaded connection with the bottom of the conical body 6, and the weight member 10 can be replaced according to actual conditions. In this embodiment, the weight member 10 is a metal cylinder.
Specifically, the cone 6 is sleeved with a sealing rubber pad 9. When the layered sampler is arranged below, under the action of the weight part 10, the sealing rubber gasket 9 can be contacted with the conical step 2 corresponding to the base body, and sealing is realized under the action of pressure.
Specifically, be provided with a plurality of second sample openings 9 on the cylinder base member 5, second sample opening 9 is slot type annular opening, and a plurality of second sample openings 9 evenly set up along the axial of cylinder base member 5, and second sample opening and the inside cavity intercommunication of cylinder base member 5, sample pump 11 can extract the liquid in the inside cavity of cylinder base member 5.
The embodiment also comprises a cable 13 and an aviation connector 12, wherein the cable 13 is connected with the sampling pump 11 through the aviation connector 12, and the cable 13 is used for lowering or lifting the layer sampler.
Specifically, each cylindrical base body 1 is provided with a plurality of first sampling openings 3, each first sampling opening 3 is a slit-type annular opening, and the plurality of first sampling openings 3 are uniformly arranged along the axial direction of the cylindrical base body 1.
In this embodiment, the sealing assembly includes two sealing rings 7, and the number of the base body is three.
Before the single-well multi-layer sampling device of the ground dipping well site in the embodiment is used, drilling is carried out, and the method specifically comprises the following steps: a) The diameter of the open hole of the drilled naked eye is 269mm, the position of an ore bed is exposed by a tricone bit with the diameter of 151mm, and then an object detection well is operated. And reaming and drilling the drill bit with the diameter of 269mm to the final hole depth. b) And (5) lowering the mining column. The production column is composed of PVC-U pipes with the diameter of 152 multiplied by 12.88mm, and is connected by pipe hoops which are made of pipes with the diameter of 160 multiplied by 15mm and are made of the same materials. c) And (3) grouting outside the casing for well cementation, and then opening the aquifer by adopting a casing cutting windowing or perforating mode.
Then go into the layering sample and sit and seal the base, specifically, the layering sample is sat and is sealed the base and is gone into predetermined sample position by the drilling rod connection, and high-pressure pump is connected on ground, adopts the mode of ground suppress to let packer 4 sit and seal in casing wall or bore hole wall of a well, and the outside upper end of each base body is provided with a packer 4.
And finally, a stratified sampling device is put in, specifically, a proper stratified sampling device is selected to be connected to a cable 13 according to the position sampled as required, an aviation connector 12 is screwed, the stratified sampling device is put in a corresponding sampling position by utilizing the cable 13, namely, the stratified sampling device enters a corresponding base body, under the action of a weight part 10, a sealing rubber gasket 9 is contacted with a conical step 2 of the base body, the lower end is sealed under the action of pressure, the upper end is sealed by two sealing rings 7, then, a sampling pump 11 is opened by ground control for sampling, the stratified sampling device is lifted to the ground through the cable 13 after sampling is finished, and a water sample is taken out from the sampling pump 11.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (9)
1. The utility model provides a soak well site single well multilayer sampling device, its characterized in that, sits and seals base and a plurality of stratified sampling ware including the stratified sampling, the stratified sampling sits and seals the base and includes a plurality of packers and a plurality of base body that from top to bottom connects gradually, the base body includes drum base member and toper step, the toper step connect in drum base member lower extreme, it is a plurality of the internal diameter of drum base member reduces from top to bottom in proper order, each be provided with the first sample opening of a plurality of on the drum base member, each the drum base member respectively through one the packer seals and separates, the stratified sampling ware includes sampler body, seal assembly, sample pump and counterweight, a sampler body and one base body structure phase-match, counterweight detachably install in sampler body bottom, the sample pump set up in sampler body top, seal assembly set up in sampler body outer wall upper portion, be provided with a plurality of sample opening on the sampler body, the second sample opening set up in the seal assembly below.
2. The single-well multilayer sampling device for the in-situ leaching well site as claimed in claim 1, wherein the sampler body comprises a cylindrical base body and a conical body arranged at the lower end of the cylindrical base body, the weight member is connected to the bottom end of the conical body, the cylindrical base body is of a hollow structure, the sampling pump is fixed at the top of the cylindrical base body, the sealing assembly is arranged at the upper part of the outer wall of the cylindrical base body, the cylindrical base body is provided with a plurality of the second sampling openings, one cylindrical base body is matched with one cylindrical base body structure, and one conical body is matched with one conical step structure.
3. The single-well multi-layer sampling device of the in-situ leaching well site as claimed in claim 2, wherein the weight member is in threaded connection with the bottom of the conical body, and the weight member is a metal cylinder.
4. The single-well multi-layer sampling device of the in-situ leaching well site as claimed in claim 2, wherein the conical body is sleeved with a sealing rubber gasket.
5. The single-well multi-layer sampling device of claim 2, wherein the second sampling opening is a slotted annular opening, and the plurality of second sampling openings are uniformly arranged along the axial direction of the cylindrical substrate.
6. The single-well multi-layer sampling device of claim 1, further comprising a cable and an aerial connector, wherein the cable is connected to the sampling pump through the aerial connector.
7. The single-well multi-layer sampling device of claim 1, wherein the first sampling opening is a slotted annular opening, and the plurality of first sampling openings are uniformly arranged along an axial direction of the cylindrical substrate.
8. The single well multi-layer sampling device of claim 1, wherein the seal assembly comprises two seal rings.
9. The single-well multi-layer sampling device of the in-situ leaching well site of claim 1, wherein the base body is provided in three.
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| CN112780270A (en) * | 2020-12-11 | 2021-05-11 | 中国石油天然气股份有限公司 | Underground sampling test device and test method |
| CN117108277B (en) * | 2023-10-20 | 2024-01-09 | 大庆汇丰达石油科技开发有限公司 | Wellhead full liquid sampling device |
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| CN1317484C (en) * | 2003-09-19 | 2007-05-23 | 吴孝喜 | Cavity water sampling and generating method for oil well in production |
| CN1928321B (en) * | 2005-09-05 | 2011-10-05 | 大庆油田有限责任公司 | Method for down-hole laminated sampling and measuring device |
| FR2921407B1 (en) * | 2007-09-24 | 2015-02-13 | Commissariat Energie Atomique | MULTI-LEVEL STATIC SAMPLE |
| CN203259373U (en) * | 2012-09-24 | 2013-10-30 | 张丽颖 | Underground water stratified sampling pipe |
| CN104929629B (en) * | 2015-06-17 | 2017-09-29 | 中国科学院武汉岩土力学研究所 | A kind of tube-in-tube underground fluid Stratified Sampling device |
| CN205404173U (en) * | 2015-12-29 | 2016-07-27 | 核工业北京化工冶金研究院 | Ground soaks drilling depthkeeping sampling device |
| CN106194108B (en) * | 2016-08-29 | 2018-09-07 | 中国石油集团渤海钻探工程有限公司 | A kind of multi-layer testing sampling valve |
| CN110146332A (en) * | 2019-04-30 | 2019-08-20 | 同济大学 | A kind of groundwater monitoring well device and groundwater sampling method |
| CN110017138A (en) * | 2019-05-08 | 2019-07-16 | 中国科学院武汉岩土力学研究所 | Air water multilayer sampling method and device in a kind of drilling |
| CN210037326U (en) * | 2019-05-28 | 2020-02-07 | 广东省有色矿山地质灾害防治中心 | Underground water single-well multilayer identification sampling system |
| CN111411915A (en) * | 2020-04-24 | 2020-07-14 | 中国科学院武汉岩土力学研究所 | Downhole variable-diameter type layered structure sealing device and method |
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| Title |
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| 刘正邦 ; 王海峰 ; 闻振乾 ; 丁叶 ; 姜岩 ; 谢廷婷 ; 胥国龙 ; 王贵 ; .地浸采铀井场溶液运移特征与抽注液量控制研究.(第01期), * |
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