CN109989727A - A kind of ground-dipping uranium extraction drilling de-plugging anatonosis technique - Google Patents
A kind of ground-dipping uranium extraction drilling de-plugging anatonosis technique Download PDFInfo
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- CN109989727A CN109989727A CN201711475704.4A CN201711475704A CN109989727A CN 109989727 A CN109989727 A CN 109989727A CN 201711475704 A CN201711475704 A CN 201711475704A CN 109989727 A CN109989727 A CN 109989727A
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- 229910052770 Uranium Inorganic materials 0.000 title claims abstract description 25
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 238000007598 dipping method Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000000605 extraction Methods 0.000 title claims abstract description 12
- 238000005553 drilling Methods 0.000 title abstract description 7
- 238000011010 flushing procedure Methods 0.000 claims abstract description 26
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 14
- 239000004094 surface-active agent Substances 0.000 claims abstract description 13
- 238000002347 injection Methods 0.000 claims abstract description 10
- 239000007924 injection Substances 0.000 claims abstract description 10
- 230000000903 blocking effect Effects 0.000 claims abstract description 7
- 208000027418 Wounds and injury Diseases 0.000 claims abstract description 6
- 230000006378 damage Effects 0.000 claims abstract description 6
- 208000014674 injury Diseases 0.000 claims abstract description 6
- 239000000243 solution Substances 0.000 claims abstract description 5
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- 239000002253 acid Substances 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 6
- 239000004927 clay Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 239000002734 clay mineral Substances 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 4
- 239000001095 magnesium carbonate Substances 0.000 claims description 4
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 4
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 3
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 3
- 229910007258 Si2H4 Inorganic materials 0.000 claims description 3
- 229910004074 SiF6 Inorganic materials 0.000 claims description 3
- 239000001110 calcium chloride Substances 0.000 claims description 3
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 3
- 238000009388 chemical precipitation Methods 0.000 claims description 3
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 3
- FLTRNWIFKITPIO-UHFFFAOYSA-N iron;trihydrate Chemical compound O.O.O.[Fe] FLTRNWIFKITPIO-UHFFFAOYSA-N 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 239000000829 suppository Substances 0.000 claims description 3
- 150000007513 acids Chemical class 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 5
- 239000011707 mineral Substances 0.000 abstract description 5
- 238000005406 washing Methods 0.000 abstract description 5
- 239000012190 activator Substances 0.000 abstract description 2
- 230000007935 neutral effect Effects 0.000 abstract description 2
- 238000002386 leaching Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- -1 iron ion Chemical class 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
- C09K8/528—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning inorganic depositions, e.g. sulfates or carbonates
-
- 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
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
- E21B37/06—Methods or apparatus for cleaning boreholes or wells using chemical means for preventing or limiting, e.g. eliminating, the deposition of paraffins or like substances
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/12—Swell inhibition, i.e. using additives to drilling or well treatment fluids for inhibiting clay or shale swelling or disintegrating
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- General Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Geochemistry & Mineralogy (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention belongs to ground-dipping uranium extraction technical fields, more particularly to a kind of ground-dipping uranium extraction drilling de-plugging anatonosis technique, purpose is by the way that the operation of the series of process such as activator, integrative blockage relieving agent, anti-expansion displacer and state modulator is added to blocking ore bed, it is finally reached the effect of uranium deposit de-plugging anatonosis, thus near wellbore zone and jamming of ore bed problem in the neutral extract technology of very good solution.It is characterized by: it includes the steps that preparation of reagents, injection surfactant, injection integrative blockage relieving agent, the anti-expansion displacer of injection, standing and air compressor machine hole flushing.Using the present invention in the technology for washing well of uranium in Xinjiang mineral deposit, jamming of ore bed is efficiently solved the problems, such as, horizontal 2-3m when water is all larger than normal after hole flushing3/ h, and hold time and reach 130d or more, and stratum can be prevented by secondary injury, it is feasible in technology and reasonable in economy, it is the preferred hole flushing technology of uranium deposit de-plugging anatonosis.
Description
Technical field
The invention belongs to ground-dipping uranium extraction technical fields, and in particular to a kind of ground-dipping uranium extraction drilling de-plugging anatonosis technique.
Background technique
Successful application and development with China Yi Li uranium mine ground-dipping uranium extraction technology, in China, other mines are also carried out
Ground-dipping uranium extraction technical application can be divided into acid system leaching, alkaline Leaching and neutrality according to different mine ledge core conditions at present
Leach etc..Due to ground-dipping uranium extraction be underground carry out, underground water rock chemical reaction is extremely complex, either acid system, alkaline process or
CO2+O2Neutrality leaches, and all having one in recovery process cannot be neglected blockage problem, and pumping fluid apertures water is caused due to blocking
Amount decline, ground leaching work cannot proceed normally.
Uranium in Xinjiang mineral deposit is that domestic explored large size can one of ground leaching sand uranium deposit.The mineral deposit ore body is in multilayer point
Cloth, permeability is low, and hydrogeologic condition is more complex, and carbonate content is high in ore and is unevenly distributed.In view of uranium in Xinjiang mine
The geological hydrologies features such as height of bed carbonate hyposmosis, mineral deposit industrialization exploitation use CO2+O2Ground dipping uranium extracting process.CO2+
O2Ground dipping uranium extracting process has many advantages, such as that process is short, effect on environment is small, achieves and is widely applied in the U.S., into several years at me
State Xinjiang and Inner Mongol have also carried out exploratory experiment and have studied and achieve initial experience.Since trial production in 2 months 2014, until current
Put into 8, exploiting field altogether, with continuing for leaching process, there is the decline of pumping liquid measure in part drilling, in leachate calcium, magnesium etc. from
Sub- content increases, and phenomena such as red precipitate occurs on immersible pump, these phenomenons illustrate that drilling near wellbore zone or ore bed occur
Electroless Ni-P-C-O plating, by sampling, dry, acid dissolution to tamper, it was demonstrated that tamper is mainly CaCO3, Fe (OH)3、MgCO3
And Al (OH)3, take effect after the modes well-flushing such as conventional air compressor machine poor, be no longer satisfied the needs of steady production, produce
Situation is very urgent, therefore, it is necessary to study new pumping and washing process, solves the problems, such as near wellbore zone and jamming of ore bed, improves ore bed and seeps
Permeability ensures that production is stablized.
Summary of the invention
The purpose of the present invention is by the way that a systems such as activator, integrative blockage relieving agent, anti-expansion displacer are added to blocking ore bed
Column technological operation and state modulator are finally reached the effect of uranium deposit de-plugging anatonosis, thus the neutral leaching work of very good solution
Near wellbore zone and jamming of ore bed problem in skill.
The present invention is implemented as follows:
A kind of ground-dipping uranium extraction drilling de-plugging anatonosis technique, specifically comprises the following steps:
Step 1: preparation of reagents；
4 anti-corrosion groove tanks are configured, are respectively intended to prepare clear water, surfactant, integrative blockage relieving suppository and anti-expansion replacement
Liquid, each groove tank are interconnected at top and bottom, convey and recycle convenient for liquid；
Step 2: injection surfactant；
In 5m310kg surfactant is added in clear water, after mixing using pipeline pump pressurization bet, bet pressure dimension
It holds in 1.5-1.8Mpa, reagent is directly injected by filter segment by hole flushing air hose；
Step 3: injection integrative blockage relieving agent；
In 4m3It is steady that 2000kg HCl, 300kg HF, the high temperature acidified corrosive liquid of 120kg, 120kg iron ion are added in clear water
Determine agent, 125kg NH4Cl, after mixing using pipeline pump pressurization bet, bet pressure maintains 1.5-1.8Mpa, by washing
Reagent is directly injected into filter segment by hole air hose, when acid solution is into people stratum, CaCO of the main acid first with filter segment deposition3
And MgCO3It reacts, the integrative blockage relieving agent for being mixed with hydrofluoric acid, which can effectively dissolve near wellbore zone common acids, can not dissolve clay
Mineral dissolve the clay mineral of chemical precipitation and blocking channel；
Step 4: anti-expansion displacer is injected；
In 5m3250kg NH is added in clear water4Cl, after mixing using pipeline pump pressurization bet, bet pressure is maintained
Reagent is directly injected into filter segment by hole flushing air hose, prevents clay swell to the secondary injury on stratum by 1.5-1.8Mpa；
Step 5: it stands；
For the chemical reaction for reinforcing reagent and ore bed, it will thoroughly block the substance in ore bed and remove, after the above reagent injection,
It stands for 24 hours；
Step 6: air compressor machine hole flushing；
Hole flushing is carried out using air compressor machine, until hole flushing liquid pH terminates when reaching 6 or more.
Chemical equation in step 3 as described above are as follows:
CaCO3+2HCl→CaCl2+H2O+CO2↑
Fe(OH)3+3HCl→FeCl3+3H2O
Al2Si2H4O9+18H++l8RF→2H2SiF6+2AlF3+6H2O+18R+。
The beneficial effects of the present invention are:
1. injecting surfactant to release ore bed water-blocking effect: a large amount of hole flushing job descriptions are impregnated using single strong acid
Hole flushing can not obtain ideal hole flushing effect, and reason is not consider the water-blocking effect of the generation in water-acid-rock mechanism,
We pass through a large amount of field tests, and final determine should inject surfactant in de-plugging agent to release ore bed water-blocking effect, improve
The contact area of de-plugging agent and tamper.
2. injecting integrative blockage relieving agent dissolution blocking impurity: being prepad fluid using surfactant, HCl is aided with as main acid
HF, high-temperature acidification corrosion inhibitor, ferrous stability, NH4The various additives such as Cl, to dissolve calcareous, irony and part of clay mine
Object, and can effectively prevent Fe ion secondary precipitation.
3. eliminating the expansion during de-plugging: being added during integrative blockage relieving agent carries out ore bed de-plugging by NH4Cl
The anti-expansion displacer prepared with clear water, can prevent clay swell to the secondary injury on stratum.
Specific embodiment
Below with reference to embodiment, the present invention is described further.
Uranium deposit de-plugging anatonosis washing technology implements specific steps:
1. preparation of reagents: configuration 4 anti-corrosion groove tanks, be respectively intended to prepare clear water, surfactant, integrative blockage relieving suppository and
Anti- expansion displacement fluid, each groove tank are interconnected at top and bottom, convey and recycle convenient for liquid.
2. injecting surfactant: in 5m310kg surfactant is added in clear water, is added after mixing using pipeline pump
Pressure note, bet pressure maintain 1.5-1.8Mpa, reagent are directly injected into filter segment by hole flushing air hose.
3. injecting integrative blockage relieving agent: in 4m32000kg HCl, 300kg HF, the high temperature acidified corrosion of 120kg are added in clear water
Liquid, 120kg ferrous stability, 125kg NH4Cl, after mixing using pipeline pump pressurization bet, bet pressure is maintained
Reagent is directly injected into filter segment by hole flushing air hose by 1.5-1.8Mpa, when acid solution is into people stratum, main acid first with mistake
The CaCO of filter section deposition3And MgCO3It reacts, being mixed with the integrative blockage relieving agent of hydrofluoric acid, can effectively to dissolve near wellbore zone general
Logical acid can not dissolve clay mineral, and the clay mineral of chemical precipitation and blocking channel is dissolved.(reaction mechanism: CaCO3+2HCl
→ CaCl2+H2O+CO2↑、Fe(OH)3+3HCl→FeCl3+3H2O
Al2Si2H4O9+18H++l8RF→2H2SiF6+2AlF3+6H2O+18R+)
4. injecting anti-expansion displacer: in 5m3250kg NH is added in clear water4Cl is pressurizeed using pipeline pump after mixing
Bet, bet pressure maintain 1.5-1.8Mpa, reagent are directly injected into filter segment by hole flushing air hose, prevents clay swollen
The swollen secondary injury to stratum.
5. standing: for the chemical reaction for reinforcing reagent and ore bed, it will thoroughly block the substance in ore bed and remove, the above reagent
After injection, stand for 24 hours.
6. air compressor machine hole flushing: hole flushing is carried out using air compressor machine, until hole flushing liquid pH terminates when reaching 6 or more.
Using the present invention in the technology for washing well of uranium in Xinjiang mineral deposit, jamming of ore bed, water after hole flushing are efficiently solved the problems, such as
Amount horizontal 2-3m when being all larger than normal3/ h, and hold time and reach 130d or more, and stratum can be prevented by secondary injury,
It is feasible in technology and reasonable in economy, it is the preferred hole flushing technology of uranium deposit de-plugging anatonosis.
Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention, should all be in this hair
Within bright protection scope.
Claims (2)
- The de-plugging anatonosis technique 1. a kind of ground-dipping uranium extraction drills, specifically comprises the following steps:Step 1: preparation of reagents；4 anti-corrosion groove tanks are configured, are respectively intended to prepare clear water, surfactant, integrative blockage relieving suppository and anti-expansion displacement fluid, respectively Groove tank is interconnected at top and bottom, conveys and recycles convenient for liquid；Step 2: injection surfactant；In 5m310kg surfactant is added in clear water, after mixing using pipeline pump pressurization bet, bet pressure is maintained Reagent is directly injected into filter segment by hole flushing air hose by 1.5-1.8Mpa；Step 3: injection integrative blockage relieving agent；In 4m3In clear water be added 2000kg HCl, 300kg HF, the high temperature acidified corrosive liquid of 120kg, 120kg ferrous stability, 125kg NH4Cl, after mixing using pipeline pump pressurization bet, bet pressure maintains 1.5-1.8Mpa, passes through hole flushing wind Reagent is directly injected into filter segment by pipe, when acid solution is into people stratum, CaCO of the main acid first with filter segment deposition3And MgCO3It reacts, the integrative blockage relieving agent for being mixed with hydrofluoric acid, which can effectively dissolve near wellbore zone common acids, can not dissolve clay pit Object dissolves the clay mineral of chemical precipitation and blocking channel；Step 4: anti-expansion displacer is injected；In 5m3250kg NH is added in clear water4Cl, after mixing using pipeline pump pressurization bet, bet pressure maintains 1.5- Reagent is directly injected into filter segment by hole flushing air hose, prevents clay swell to the secondary injury on stratum by 1.8Mpa；Step 5: it stands；For the chemical reaction for reinforcing reagent and ore bed, it will thoroughly block the substance in ore bed and remove, after the above reagent injection, stand 24h；Step 6: air compressor machine hole flushing；Hole flushing is carried out using air compressor machine, until hole flushing liquid pH terminates when reaching 6 or more.
- The de-plugging anatonosis technique 2. ground-dipping uranium extraction according to claim 1 drills, it is characterised in that: in the step three Chemical equation are as follows:CaCO3+2HCl→CaCl2+H2O+CO2↑Fe(OH)3+3HCl→FeCl3+3H2OAl2Si2H4O9+18H++l8RF→2H2SiF6+2AlF3+6H2O+18R+。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711475704.4A CN109989727A (en) | 2017-12-29 | 2017-12-29 | A kind of ground-dipping uranium extraction drilling de-plugging anatonosis technique |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711475704.4A CN109989727A (en) | 2017-12-29 | 2017-12-29 | A kind of ground-dipping uranium extraction drilling de-plugging anatonosis technique |
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| CN109989727A true CN109989727A (en) | 2019-07-09 |
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| CN201711475704.4A Pending CN109989727A (en) | 2017-12-29 | 2017-12-29 | A kind of ground-dipping uranium extraction drilling de-plugging anatonosis technique |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111520107A (en) * | 2020-04-24 | 2020-08-11 | 核工业北京化工冶金研究院 | Well flushing process for in-situ leaching uranium mining production well |
| CN111878049A (en) * | 2020-07-30 | 2020-11-03 | 核工业北京化工冶金研究院 | High-power ultrasonic blockage removal and infiltration increase device and method for in-situ leaching uranium mine |
| CN112943129A (en) * | 2019-11-26 | 2021-06-11 | 中核内蒙古矿业有限公司 | Drilling and hole-washing device and method for in-situ leaching uranium mining of large buried depth thick mineral-bearing aquifer |
| CN114622866A (en) * | 2020-12-14 | 2022-06-14 | 中核内蒙古矿业有限公司 | NaOH well washing process for in-situ leaching mine |
| CN116004199A (en) * | 2022-12-19 | 2023-04-25 | 中核通辽铀业有限责任公司 | Uranium mining and liquid injection well anti-swelling agent and method for improving liquid injection amount of uranium mining and liquid injection well |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943129A (en) * | 2019-11-26 | 2021-06-11 | 中核内蒙古矿业有限公司 | Drilling and hole-washing device and method for in-situ leaching uranium mining of large buried depth thick mineral-bearing aquifer |
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| CN111878049A (en) * | 2020-07-30 | 2020-11-03 | 核工业北京化工冶金研究院 | High-power ultrasonic blockage removal and infiltration increase device and method for in-situ leaching uranium mine |
| CN114622866A (en) * | 2020-12-14 | 2022-06-14 | 中核内蒙古矿业有限公司 | NaOH well washing process for in-situ leaching mine |
| CN114622866B (en) * | 2020-12-14 | 2024-03-19 | 中核内蒙古矿业有限公司 | In-situ leaching mine NaOH well washing process |
| CN116004199A (en) * | 2022-12-19 | 2023-04-25 | 中核通辽铀业有限责任公司 | Uranium mining and liquid injection well anti-swelling agent and method for improving liquid injection amount of uranium mining and liquid injection well |
| CN116004199B (en) * | 2022-12-19 | 2024-05-07 | 中核通辽铀业有限责任公司 | Uranium mining and liquid injection well anti-swelling agent and method for improving liquid injection amount of uranium mining and liquid injection well |
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Application publication date: 20190709 |