CN105927193A - Mining method of halite ore deposit in deep, thick and solid salt lake - Google Patents
Mining method of halite ore deposit in deep, thick and solid salt lake Download PDFInfo
- Publication number
- CN105927193A CN105927193A CN201610571296.1A CN201610571296A CN105927193A CN 105927193 A CN105927193 A CN 105927193A CN 201610571296 A CN201610571296 A CN 201610571296A CN 105927193 A CN105927193 A CN 105927193A
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- Prior art keywords
- well
- brine
- deep
- halogen
- water injection
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 235000002639 sodium chloride Nutrition 0.000 title claims abstract description 56
- 238000005065 mining Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000010442 halite Substances 0.000 title claims abstract description 15
- 239000007787 solid Substances 0.000 title abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000002347 injection Methods 0.000 claims abstract description 31
- 239000007924 injection Substances 0.000 claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 claims abstract description 19
- 239000012267 brine Substances 0.000 claims abstract description 18
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims abstract description 18
- 229910052736 halogen Inorganic materials 0.000 claims description 24
- 150000002367 halogens Chemical class 0.000 claims description 23
- 241001131796 Botaurus stellaris Species 0.000 claims description 20
- 239000013505 freshwater Substances 0.000 claims description 17
- 238000011084 recovery Methods 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000005352 clarification Methods 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 2
- 238000011065 in-situ storage Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 abstract description 27
- 238000005553 drilling Methods 0.000 abstract description 4
- 238000000605 extraction Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009933 burial Methods 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
- 238000007670 refining Methods 0.000 abstract 1
- 239000002910 solid waste Substances 0.000 abstract 1
- 238000004090 dissolution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 235000019994 cava Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/20—Methods of underground mining; Layouts therefor for rock salt or potash salt
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Remote Sensing (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention relates to a mining method of a halite ore deposit in a deep, thick and solid salt lake. The method is used for an ore deposit of a modern salt lake with greater burial depth and thickness. The method comprises following steps: drilling water injection wells and brine extraction wells, arranging water injection pump rooms, controlling the multiple water injection wells through pipe networks for each pump room, adopting a water-injection dissolving slat ore deposit in a group well to generate brine, pumping brine out of the brine extraction wells through pores of salt layers; selecting a proper drilling machine for well completion, adopting brine pumps to host and install; and conveying brine extracted to a brine clearing pool through a brine-conveying pipeline and clearing and refining brine and conveying brine to a production enterprise through the brine-conveying pipeline. The mining method of the halite ore deposit in the deep, thick and solid salt lake has following beneficial effects: processing amount of solid waste in the later period can be reduced; pollution discharge cost is lowered; a deep and thick ore deposit can be mined in the later period of mining the salt lake; production cost is low; pollution is little; functions of saving energy and reducing emissions are exerted; and the method can be used for mining and exploitation of a salt ore deposit in a deep and thick salt.
Description
Technical field
The present invention relates to salt well accident technical field, the recovery method of a kind of deep playa halite ore bed.
Background technology
China's salt lake quantity is many, is mainly distributed on the ground such as the Inner Mongol, Tibet, Xinjiang, Qinghai, aboundresources, exploits lake salt
With a long history.Lake salt exploitation at present mainly uses machinery to excavate and adopt the exploitation of salt ship, is affected relatively by mechanical performance and water level
Greatly, mining depth is the most shallower, mostly is 1.5～3m.Currently used recovery method, exploits at relatively schott or salt lake
Initial stage is relatively more effective, but after shallow-layer lake salt is exploited, Deep Salt Bed just cannot be exploited.By halite bed drilling solution
Recovery method combines with works for modern salt lake deposit exploitation requirement, researches and develops a kind of new new work of Modern Salt Lakes drilling solution mining
Skill, thus solve deep lake salt mining problem.
Summary of the invention
It is an object of the invention to provide the recovery method of a kind of deep playa halite ore bed improving resource utilization, with
The problem solving to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme:
The recovery method of a kind of deep playa halite ore bed, comprises the following steps:
(1) arranging water filling halogen mining well pump house in mining area, salt lake, each pump house controls multiple production unit, each controlling
Several water injection wells and halogen mining well, arrange electromagnetic flowmeter in pump house, to the water injection rate of each water injection well and going out of halogen mining well
Halogen amount is measured；
(2) use the mode of concrete floral tube open caisson, get out bigbore halogen mining well, liquid following formula halogen-extracting pump is installed, use
Halogen-extracting pump is placed into design attitude by movable hoisting equipment, and the well head at halogen mining well arranges reinforced frame, is hung by flexible steel wire
Live halogen-extracting pump；
(3) according to the design bore of water injection well, select suitable rig Cheng Jing, Cheng Jinghou, lower going-into-well pipe, and select to close
Suitable well cementation mode is cemented the well, and prevents water filling from returning out ground along well casing；
(4) arranging fresh water pipe network in Cai Lu district, the well head of each supervisor, arm and the water injection well of fresh water pipe network arranges valve,
Reasonable Regulation And Control water injection rate, on the ore pillar protection band that supervisor is laid between production unit, controls bittern in injection flow i.e. ore bed
Flow velocity, dissolves the halite in ore bed so that insoluble matter in situ precipitation；
(5) bittern that halogen mining well is released, is transported to bittern depositing reservoir by brine pipeline road, bittern carries out clarification refined,
Then by brine pipeline road, by brine transportation to manufacturing enterprise.
As the further scheme of the present invention: in described step (1), when dividing production unit, divide according to ribbon.
As the further scheme of the present invention: in described step (3), water injection well is group wells, i.e. uses the water filling of many wells.
As the present invention further scheme: in described step (4), fresh water pipe network by being responsible for, arm and hollow billet form,
Supervisor controls 1 production unit, and arm controls multiple hollow billets, and hollow billet controls each water injection well well casing.
Compared with prior art, the invention has the beneficial effects as follows:
1, the present invention uses water pump or feed coefficient, injects in water injection well by the fresh water having pressure, and fresh water pressure needs according to lake
The relevant underground water dynamics parameter determination of salt ore bed.Intended the lake salt ore bed of exploitation by fresh water dissolution, generate bittern.
2, take out halogen well and aspirate bittern by halogen-extracting pump, reduce the water level of bittern in salt deposit, the bittern of dissolved salt generation under water injection well,
Under the effect of bittern water-head, by the space of primary salt deposit intergranular, infiltrate into and take out halogen well pump and go out ground and complete to adopt halogen process.
3, the exploited bittern water yield and the fresh water amount of injection are according to MaterialBalance Computation, dynamic equilibrium to be reached, it is ensured that fresh water can be just
Permelting lake salt, and the continuous extraction of bittern, and unlikely on production unit outside nugget produce excessive impact, it is simple to salt lake
Orderly development.
4, after the present invention dissolves lake salt bottom ore bed, part water-insoluble can precipitate on the spot, it is possible to reduce later stage solid gives up
The treating capacity of thing, reduces blowdown cost.
5, the present invention solves the problem that the salt lake exploitation Deep Thick ore bed that faces of later stage cannot be exploited.
6, the present invention is compared with other prior aries, has that production cost is low, it is little to pollute, the effect of energy-saving and emission-reduction, available
Exploitation in deep lake salt ore bed utilizes.
Accompanying drawing explanation
Fig. 1 is the production unit zoned format of the present invention；
Fig. 2 is the part well group arrangement of the present invention；
Fig. 3 is the profile of a certain position of the present invention；
Fig. 4 is the flow chart of the present invention；
Fig. 5 is that the note of the present invention adopts schematic diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly and completely
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on this
Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained under not making creative work premise
Execute example, broadly fall into the scope of protection of the invention.
Referring to Fig. 1～5, in the embodiment of the present invention, the stages of mining of a kind of deep playa halite ore bed is as follows:
1, use water pump or feed coefficient, will have the fresh water of pressure, inject in water injection well by fresh water pipe network, dissolve and intend exploitation
Lake salt ore bed, produce bittern, fresh water pressure need determine according to the Hydrodynamic Parameters that descends relatively of lake salt ore bed；
2, reasonable Arrangement goes out the position of halogen well and water injection well, can use the arrangement such as Fig. 2, adopts halogen amount and note
The water yield, arrives dynamic equilibrium, it is ensured that lake salt continued dissolution；
3, use the mode of concrete floral tube open caisson, form bigbore halogen mining well, halogen mining well pump house, each pump house are set
Control a number of halogen mining well, electromagnetic flowmeter be set in pump house, to each go out halogen well go out halogen amount and measure；
4, halogen-extracting pump hang installation, movable hoisting equipment can be used, halogen-extracting pump is placed into design attitude, well head
Reinforced frame is set, by flexible steel wire, hangs halogen-extracting pump；
5, according to the design bore of water injection well, suitable rig Cheng Jing is selected.Cheng Jinghou, lower going-into-well pipe, and select properly
Well cementation mode cement the well, prevent water filling from returning out ground along well casing.In recovery process, slump is there will be in view of salt deposit,
Select flexible tube, be relatively suitable for salt lake exploitation；
6, arranging fresh water pipe network on halogen-extracting pump, the well head of each supervisor, arm and the water injection well of fresh water pipe network arranges valve,
Reasonable Regulation And Control water injection rate, on the ore pillar protection band that supervisor is laid between production unit, arm and hollow billet use flexible pipe；
Fresh water pipe network by being responsible for, arm and hollow billet form, supervisor controls 1 production unit, and arm controls multiple hollow billets, hollow billet control
Make each water injection well well casing；
7, the bittern released, by brine pipeline road, is transported to bittern depositing reservoir, bittern carries out clarification refined, then
By brine pipeline road, by brine transportation to manufacturing enterprise；
8, for the exploitation later stage, salt lake ore bed may cave in, and when production unit divides, uses ribbon, such as 1000m
The strip of × 200m, after ore bed caves in, can adopt salt pond with form that similar conventional ship adopts mode；Bury for 20～30m
Deep lake salt ore bed, if early stage recovery rate of mining is not up to economic criterion, it is also possible to reduce bittern water level in pond, uses and drives
The salt ship of adopting of power is exploited, and promotes the undissolved lake salt of part to dissolve, improves the rate of recovery.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and do not carrying on the back
In the case of the spirit or essential attributes of the present invention, it is possible to realize the present invention in other specific forms.Therefore, no matter from
From the point of view of which point, all should regard embodiment as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all by fall in the implication of equivalency and scope of claim
Change is included in the present invention.Should not be considered as limiting involved claim by any reference in claim.
Claims (4)
1. the recovery method of a deep playa halite ore bed, it is characterised in that comprise the following steps:
(1) arranging water filling halogen mining well pump house in mining area, salt lake, each pump house controls multiple production unit, several water injection wells of each controlling and halogen mining well, arranges electromagnetic flowmeter, measure the water injection rate of each water injection well and the halogen amount that goes out of halogen mining well in pump house；
(2) using the mode of concrete floral tube open caisson, get out bigbore halogen mining well, install liquid following formula halogen-extracting pump, use movable hoisting equipment that halogen-extracting pump is placed into design attitude, the well head at halogen mining well arranges reinforced frame, hangs halogen-extracting pump by flexible steel wire；
(3) according to the design bore of water injection well, select suitable rig Cheng Jing, Cheng Jinghou, lower going-into-well pipe, and select suitable well cementation mode to cement the well, prevent water filling from returning out ground along well casing；
(4) fresh water pipe network is set in Cai Lu district; the well head of each supervisor, arm and the water injection well of fresh water pipe network arranges valve; Reasonable Regulation And Control water injection rate; on the ore pillar protection band that supervisor is laid between production unit; control bittern flow velocity in injection flow i.e. ore bed; dissolve the halite in ore bed so that insoluble matter in situ precipitation；
(5) bittern that halogen mining well is released, is transported to bittern depositing reservoir by brine pipeline road, bittern carries out clarification refined, then by brine pipeline road, by brine transportation to manufacturing enterprise.
The recovery method of deep playa halite ore bed the most according to claim 1, it is characterised in that in described step (1), when dividing production unit, divides according to ribbon.
The recovery method of deep playa halite ore bed the most according to claim 1, it is characterised in that in described step (3), water injection well is group wells, i.e. uses the water filling of many wells.
The recovery method of deep playa halite ore bed the most according to claim 1, it is characterised in that in described step (4), fresh water pipe network by being responsible for, arm and hollow billet form, supervisor controls 1 production unit, and arm controls multiple hollow billets, and hollow billet controls each water injection well well casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610571296.1A CN105927193B (en) | 2016-07-19 | 2016-07-19 | A kind of recovery method of deep playa halite ore bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610571296.1A CN105927193B (en) | 2016-07-19 | 2016-07-19 | A kind of recovery method of deep playa halite ore bed |
Publications (2)
| Publication Number | Publication Date |
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| CN105927193A true CN105927193A (en) | 2016-09-07 |
| CN105927193B CN105927193B (en) | 2018-07-06 |
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| CN201610571296.1A Active CN105927193B (en) | 2016-07-19 | 2016-07-19 | A kind of recovery method of deep playa halite ore bed |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110778919A (en) * | 2019-10-28 | 2020-02-11 | 青海盐湖工业股份有限公司 | Protection method and system for salt lake brine conveying pipeline |
| CN111287725A (en) * | 2020-03-23 | 2020-06-16 | 安东石油技术（集团）有限公司 | Third series stratum ultra-deep communication brine well dissolution cavity construction method |
| CN115584957B (en) * | 2022-11-14 | 2024-05-31 | 吴蝉 | Method for mining salt lake mineral products in segmented and progressive linkage mode |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110778919A (en) * | 2019-10-28 | 2020-02-11 | 青海盐湖工业股份有限公司 | Protection method and system for salt lake brine conveying pipeline |
| CN110778919B (en) * | 2019-10-28 | 2021-07-16 | 青海盐湖工业股份有限公司 | Protection method and system for salt lake brine conveying pipeline |
| CN111287725A (en) * | 2020-03-23 | 2020-06-16 | 安东石油技术（集团）有限公司 | Third series stratum ultra-deep communication brine well dissolution cavity construction method |
| CN115584957B (en) * | 2022-11-14 | 2024-05-31 | 吴蝉 | Method for mining salt lake mineral products in segmented and progressive linkage mode |
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| Publication number | Publication date |
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| CN105927193B (en) | 2018-07-06 |
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