CN109209276A - A kind of method for repairing and mending of In-situ Leaching Uranium Mine production borehole damage - Google Patents
A kind of method for repairing and mending of In-situ Leaching Uranium Mine production borehole damage Download PDFInfo
- Publication number
- CN109209276A CN109209276A CN201811181101.8A CN201811181101A CN109209276A CN 109209276 A CN109209276 A CN 109209276A CN 201811181101 A CN201811181101 A CN 201811181101A CN 109209276 A CN109209276 A CN 109209276A
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- CN
- China
- Prior art keywords
- short tube
- damage
- repairing
- mending
- drilling
- Prior art date
- 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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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B29/00—Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
- E21B29/10—Reconditioning of well casings, e.g. straightening
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B29/00—Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
- E21B29/002—Cutting, e.g. milling, a pipe with a cutter rotating along the circumference of the pipe
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/127—Packers; Plugs with inflatable sleeve
Abstract
The present invention relates to ground-dipping uranium extraction technical fields, specifically disclose a kind of method for repairing and mending of In-situ Leaching Uranium Mine production borehole damage, comprising the following steps: (a) prepares drilling machine；(b) at borehole damage of polishing；(c) prepare repair piece；(d) short tube is processed；(e) expanded rubber is wound；(f) repair piece is transferred；(g) fixed expansion rubber.Method for repairing and mending of the present invention uses built-in short tube and ceramic filtration device, while the method for repairing and mending fixed with expanded rubber, and solving after In-situ Leaching Uranium Mine production drilling is damaged in use can not repair, it is necessary to the problem constructed again.
Description
Technical field
The invention belongs to ground-dipping uranium extraction technical fields, and in particular to a kind of repairing of In-situ Leaching Uranium Mine production borehole damage
Method.
Background technique
In-situ leaching uranium is by borehole engineering, by chemical reagent, the uranium in ore under natural mode of occurence
It is dissolved out, without making ore generate the centralized procurement, choosing, smelting of displacement in the uranium mining method of one.Uranium is exploited using this method
The well site that the core facility of mine is made of hundreds and thousands of production drillings, drilling construction expense account for in-situ leach mining totle drilling cost
70% or more.
Uranium mine extensive use is soaked to China at present and fills out the drilling of gravel formula in-situ leaching process, and drilling can be through during production and application
Often there is drilling well casing or filter damage phenomenon, can not be repaired after borehole damage, causes to need to construct again after damaging to produce to bore
Hole, higher cost.
To solve the above-mentioned problems, need to research and develop a kind of method for repairing and mending of In-situ Leaching Uranium Mine production borehole damage.
Summary of the invention
The purpose of the present invention is to provide a kind of method for repairing and mending of In-situ Leaching Uranium Mine production borehole damage, to realize production
Reparation after borehole damage.
Technical scheme is as follows:
A kind of method for repairing and mending of In-situ Leaching Uranium Mine production borehole damage, comprising the following steps:
(a) prepare drilling machine
Core-drill(ing) machine is carried to aperture, drilling machine vertical shaft and aperture are to just；
(b) at borehole damage of polishing
Rock bit is transferred using core-drill(ing) machine to borehole damage, breakage is polished, by portion of the damage in hole
Divide and grind, guarantees that internal diameter and damage are preceding almost the same at borehole damage；
The rock bit is less than drilling internal diameter 10-30mm；
(c) prepare repair piece
Prepare a short tube, the screw thread that can be connected with the drilling rod of core-drill(ing) machine is processed in upper end of short tube, the short tube
Outer diameter is less than drilling internal diameter 10-30mm；
(d) short tube is processed
A plurality of parallel groove is cut on short tube；
(e) expanded rubber is wound
On the groove of short tube, with the expanded rubber of water-swellable characteristic in winding；
(f) repair piece is transferred
Repair piece is transferred to drilling using the drilling rod of core-drill(ing) machine；
(g) fixed expansion rubber
It waits 48~72 hours, the complete water-swellable of expanded rubber completely encloses the gap between short tube and well casing, together
When play fixed function after, the drilling rod of core-drill(ing) machine is inverted, drilling rod can be separated with short tube, reparation is completed.
In step (c), if being located at filter segment at borehole damage, the filter segment for being also prepared for a root long degree and damage is total
The identical ceramic filtration device of length, and the screw thread that can be connected with ceramic filtration device is processed in short tube lower end.
The ceramic filtration device outer diameter is less than drilling internal diameter 10-30mm, and the partial size of haydite is 3~4mm.
Short tube A length for well damage repairing is greater than damage length 2m, short tube A wall thickness 12mm.
In the outer ring of the short tube A upper and lower ends, three grooves are respectively cut, every recess width is 50mm, and depth is
7mm；The groove center spacing 30mm of three grooves of the lower end groove center spacing 30mm, short tube A of three grooves of the upper end short tube A.
When well damage repairs decentralization repair piece, the well casing position of the intermediate region and damage that make short tube A is consistent,
Short tube A wind expanded rubber upper and lower ends respectively with damage well casing upper and lower ends position consistency.
Short tube B length for filter segment damage repairing is 2m, short tube B wall thickness 12mm, and in the lower end of short tube B, processing can
With the screw thread being connected with ceramic filtration device.
Outer ring in the middle part of the short tube B, cuts five grooves, and every recess width is 50mm, depth 7mm, adjacent
The groove center spacing 30mm of two grooves.
When filter segment damages repairing decentralization repair piece, make the filter segment position one of ceramic filtration device position and damage
It causes, short tube B is located above the filter segment of damage.
In step (f), be positive screwed connection between drilling rod and drilling rod, is anti-screwed connection, drilling rod between drilling rod and short tube A
It is anti-screwed connection between short tube B, be positive screwed connection between short tube B and ceramic filtration device.
Remarkable result of the invention is:
(1) method for repairing and mending of the present invention uses built-in short tube and ceramic filtration device, while the repairing side fixed with expanded rubber
Method, solving after In-situ Leaching Uranium Mine production drilling is damaged in use can not repair, it is necessary to the difficulty constructed again
Topic.
(2) method for repairing and mending of the present invention has the characteristics that easy to operate, at low cost, practical.
(3) method for repairing and mending of the present invention can solve to construct again because of drilling, the high cost of bring is difficult after a wide range of promote
Topic.
(4) extensive use of method for repairing and mending of the present invention can prevent in ground-dipping uranium extraction field because of the damage that drills in production process
It badly constructs to the destruction that earth's surface natural environment carries out, has the advantages that environmentally protective again.
Detailed description of the invention
Fig. 1 is the method for repairing and mending schematic diagram that In-situ Leaching Uranium Mine produces borehole damage.
In figure: 1. stratum；2. well casing；3. at well pipe damage!；4. expanded rubber A；5. short tube A；6. filter；7. filter
Breakage；8. expanded rubber B；9. short tube B；10. ceramic filtration device.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
A kind of method for repairing and mending of In-situ Leaching Uranium Mine production borehole damage, method for repairing and mending the following steps are included:
(a) prepare drilling machine
Core-drill(ing) machine is carried to aperture, drilling machine vertical shaft and aperture are to just；
(b) at borehole damage of polishing
The rock bit for being less than drilling internal diameter 10-30mm is transferred using core-drill(ing) machine to borehole damage, by breakage
It polishes, part of the damage in hole is ground, guarantee that internal diameter and damage are preceding almost the same at borehole damage；
(c) prepare repair piece
Prepare the short tube that an outer diameter is less than drilling internal diameter 10-30mm, short tube wall thickness 12mm adds in upper end of short tube lathe
The anti-screw thread that work can be connected with the drilling rod of core-drill(ing) machine；
If being located at filter segment at borehole damage, it is identical with the filter segment total length of damage to be also prepared for a root long degree
Ceramic filtration device, ceramic filtration device outer diameter are less than drilling internal diameter 10-30mm, and the partial size of haydite is 3~4mm；
Wherein, the short tube A length for well damage repairing is greater than damage length 2m, for filter segment damage repairing
Short tube B length is 2m, and the positive screw thread that can be connected with ceramic filtration device in the lower end of short tube B with lathe process；
(d) short tube is processed
A plurality of parallel groove is cut on short tube, every recess width is 50mm, depth 7mm；
Wherein, in the outer ring of short tube A upper and lower ends, three grooves, the groove center of three grooves of the upper end short tube A are respectively cut
The groove center spacing 30mm of three grooves of the lower end spacing 30mm, short tube A；Five grooves are cut in outer ring in the middle part of short tube B,
The groove center spacing 30mm of two neighboring groove；
(e) expanded rubber is wound
On the groove of short tube, with the expanded rubber of water-swellable characteristic in winding；
(f) repair piece is transferred
Repair piece is transferred to drilling using the drilling rod of core-drill(ing) machine；
If being located at well casing at borehole damage, it is consistent the well casing position of the intermediate region short tube A and damage, short tube
A wind expanded rubber upper and lower ends respectively with damage well casing upper and lower ends position consistency；Wherein, it is between drilling rod and drilling rod
Positive screwed connection is anti-screwed connection between drilling rod and short tube A；
If being located at filter segment at borehole damage, make the filter segment position consistency of ceramic filtration device position and damage,
Short tube B is located above the filter segment of damage；Wherein, be positive screwed connection between drilling rod and drilling rod, is between drilling rod and short tube B
Anti- screwed connection, be positive screwed connection between short tube B and ceramic filtration device；
(g) fixed expansion rubber
It waits 48~72 hours, the complete water-swellable of expanded rubber completely encloses the gap between short tube and well casing, together
When play fixed function after, the drilling rod of core-drill(ing) machine is inverted, drilling rod can be separated with short tube, reparation is completed.
Embodiment 1
A kind of method for repairing and mending of In-situ Leaching Uranium Mine production borehole damage, as shown in Figure 1, the total depth of damage drilling is
The specification of 400m, well casing 2 are 148 × 10mm of Φ, and at 385-395m, filter breakage 7 is located at 390m for the position of filter 6
Place, damage length 1m, the well casing 2 of drilling and the material of filter 6 are UPVC, method for repairing and mending the following steps are included:
(a) core-drill(ing) machine is carried to aperture, drilling machine vertical shaft and aperture are to just；
(b) 117 rock bit of Φ is transferred to filter breakage 7 using 50 core drilling rod of Φ, by filter breakage 7
It polishes, guarantees that 7 internal diameter of filter breakage of drilling is preceding almost the same with damage；
(c) prepare the ceramic filtration device 10 of a root long 10m, ceramic filtration device outer diameter Φ 104mm, haydite thickness 12mm are interior
Portion is the Φ 80mm carbon steel pipe of porosity 60%, and haydite layer is pasted on carbon steel pipe, and the partial size of haydite is 3~4mm；
Prepare a root long 2m, specification is the short tube B9 of 104 × 10mm of Φ, the upper end lathe process of short tube B9 can be with
The connected anti-screw thread of the drilling rod of core-drill(ing) machine, can be connected in the lower end lathe process of short tube B9 with ceramic filtration device 10
Positive screw thread；
(d) outer ring in the middle part of short tube B9, cuts five grooves, and the width of every groove is 50mm, depth 7mm, often
The groove center spacing 30mm of a groove；
(e) on the groove of short tube B9, the expanded rubber B8 with water-swellable characteristic is wound；
(f) using core-drill(ing) machine 50 drilling rod of Φ by after processing short tube B9 and ceramic filtration device 10 decentralization to drilling in,
At the decentralization of ceramic filtration device 10 to drilling 385-395m, short tube B9 is located at the top of filter 6；
Wherein, be positive screwed connection between drilling rod and drilling rod, is anti-screwed connection between drilling rod and short tube B9, short tube B9 with
Be positive screwed connection between ceramic filtration device 10；
(g) it waits 48~72 hours, the complete water-swellable of expanded rubber B8 is complete by the gap between short tube B9 and well casing 2
It is totally-enclosed, while after playing fixed function, it, can be by 50 drilling rod of Φ and short tube B9 points by 50 drilling rod of Φ " reversion " of core-drill(ing) machine
From, at this point, short tube B9 and ceramic filtration device 10 are fixed in the drilling of damage, it is built into and damages the new filter that drills, completion
It repairs.
Embodiment 2
A kind of method for repairing and mending of In-situ Leaching Uranium Mine production borehole damage, as shown in Figure 1, the total depth of damage drilling is
400m, the specification of well casing 2 are 148 × 10mm of Φ, and 3 are located at 200m at well pipe damage!, damage length 1m, the well casing 2 of drilling
Material is UPVC, method for repairing and mending the following steps are included:
(a) core-drill(ing) machine is carried to aperture, drilling machine vertical shaft and aperture are to just；
(b) 117 rock bit of Φ is transferred at well pipe damage! 3 using 50 core drilling rod of Φ, at well pipe damage! 3 is ground
It is flat, guarantee that 3 internal diameters and damage are preceding almost the same at the well pipe damage! of drilling；
(c) prepare a root long 3m, specification be 104 × 10mm of Φ short tube A5, the upper end lathe process of short tube A5 can
With the anti-screw thread being connected with the drilling rod of core-drill(ing) machine；
(d) in the outer ring of short tube A5 upper and lower ends, three grooves are respectively cut, the width of every groove is 50mm, and depth is
7mm；Wherein, the groove center spacing of three grooves of the upper end short tube A5 is 30mm, the groove center of three grooves of the lower end short tube A5
Spacing is 30mm；
(e) on the groove of short tube A5, the expanded rubber A4 with water-swellable characteristic is wound；
(f) the short tube A5 after processing is transferred at well pipe damage! 3 using 50 drilling rod of Φ of core-drill(ing) machine, in short tube A5
Between region be consistent at well pipe damage! 3 position, the upper and lower ends that short tube A5 winds expanded rubber A4 are broken with well casing respectively
3 upper and lower ends position consistency at damage；
Wherein, be positive screwed connection between drilling rod and drilling rod, is anti-screwed connection between drilling rod and short tube A5；
(g) it waits 48~72 hours, the complete water-swellable of expanded rubber A4 is complete by the gap between short tube A5 and well casing 2
It is totally-enclosed, while fixed function is played, after, 50 drilling rod of Φ " reversion " of core-drill(ing) machine can separate drilling rod with short tube A5,
It completes to repair.
Claims (10)
1. a kind of method for repairing and mending of In-situ Leaching Uranium Mine production borehole damage, it is characterised in that: the following steps are included:
(a) prepare drilling machine
Core-drill(ing) machine is carried to aperture, drilling machine vertical shaft and aperture are to just；
(b) at borehole damage of polishing
Rock bit is transferred using core-drill(ing) machine to borehole damage, breakage is polished, part of the damage in hole is ground
It is broken, guarantee that internal diameter and damage are preceding almost the same at borehole damage；
The rock bit is less than drilling internal diameter 10-30mm；
(c) prepare repair piece
Prepare a short tube, the screw thread that can be connected with the drilling rod of core-drill(ing) machine, the outer diameter of the short tube are processed in upper end of short tube
Less than drilling internal diameter 10-30mm；
(d) short tube is processed
A plurality of parallel groove is cut on short tube；
(e) expanded rubber is wound
On the groove of short tube, with the expanded rubber of water-swellable characteristic in winding；
(f) repair piece is transferred
Repair piece is transferred to drilling using the drilling rod of core-drill(ing) machine；
(g) fixed expansion rubber
It waits 48~72 hours, the gap between short tube and well casing is completely enclosed, risen simultaneously by the complete water-swellable of expanded rubber
To after fixed function, the drilling rod of core-drill(ing) machine is inverted, drilling rod can be separated with short tube, completes to repair.
2. a kind of method for repairing and mending of In-situ Leaching Uranium Mine production borehole damage as described in claim 1, it is characterised in that: step
(c) in, if being located at filter segment at borehole damage, it is also prepared for root long degree pottery identical with the filter segment total length of damage
Grain filter, and the screw thread that can be connected with ceramic filtration device is processed in short tube lower end.
3. a kind of method for repairing and mending of In-situ Leaching Uranium Mine production borehole damage as claimed in claim 2, it is characterised in that: described
Ceramic filtration device outer diameter is less than drilling internal diameter 10-30mm, and the partial size of haydite is 3~4mm.
4. a kind of method for repairing and mending of In-situ Leaching Uranium Mine production borehole damage as described in claim 1, it is characterised in that: be used for
The short tube A length of well damage repairing is greater than damage length 2m, short tube A wall thickness 12mm.
5. a kind of method for repairing and mending of In-situ Leaching Uranium Mine production borehole damage as claimed in claim 4, it is characterised in that: in institute
The outer ring of short tube A upper and lower ends is stated, three grooves are respectively cut, every recess width is 50mm, depth 7mm；The upper end short tube A
The groove center spacing 30mm of three grooves of the lower end groove center spacing 30mm, short tube A of three grooves.
6. a kind of method for repairing and mending of In-situ Leaching Uranium Mine production borehole damage as claimed in claim 5, it is characterised in that: in well
When pipe damage repairing decentralization repair piece, the well casing position of the intermediate region and damage that make short tube A is consistent, and short tube A winding is swollen
The upper and lower ends of swollen rubber respectively with damage well casing upper and lower ends position consistency.
7. a kind of method for repairing and mending of In-situ Leaching Uranium Mine production borehole damage as claimed in claim 3, it is characterised in that: be used for
The short tube B length of filter segment damage repairing is 2m, short tube B wall thickness 12mm, and in the lower end of short tube B, processing can be with ceramic filtration
The screw thread that device is connected.
8. a kind of method for repairing and mending of In-situ Leaching Uranium Mine production borehole damage as claimed in claim 7, it is characterised in that: in institute
The outer ring in the middle part of short tube B is stated, five grooves are cut, every recess width is 50mm, depth 7mm, the slot of two neighboring groove
Center spacing 30mm.
9. a kind of method for repairing and mending of In-situ Leaching Uranium Mine production borehole damage as claimed in claim 8, it is characterised in that: in mistake
When filter section damage repairing decentralization repair piece, make the filter segment position consistency of ceramic filtration device position and damage, short tube B is located at
Above the filter segment of damage.
10. a kind of method for repairing and mending of In-situ Leaching Uranium Mine production borehole damage as claimed in claim 9, it is characterised in that: step
Suddenly in (f), be positive screwed connection between drilling rod and drilling rod, is anti-screwed connection between drilling rod and short tube A, drilling rod and short tube B it
Between be anti-screwed connection, be positive screwed connection between short tube B and ceramic filtration device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811181101.8A CN109209276A (en) | 2018-10-11 | 2018-10-11 | A kind of method for repairing and mending of In-situ Leaching Uranium Mine production borehole damage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811181101.8A CN109209276A (en) | 2018-10-11 | 2018-10-11 | A kind of method for repairing and mending of In-situ Leaching Uranium Mine production borehole damage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109209276A true CN109209276A (en) | 2019-01-15 |
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ID=64979404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811181101.8A Pending CN109209276A (en) | 2018-10-11 | 2018-10-11 | A kind of method for repairing and mending of In-situ Leaching Uranium Mine production borehole damage |
Country Status (1)
| Country | Link |
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| CN (1) | CN109209276A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112049612A (en) * | 2019-06-05 | 2020-12-08 | 中核通辽铀业有限责任公司 | Method for building replaceable filter in-situ leaching uranium mining production drill hole |
| CN112647902A (en) * | 2020-12-25 | 2021-04-13 | 核工业北京化工冶金研究院 | In-situ leaching uranium mining drilling filter and well completion method |
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| US4438976A (en) * | 1982-08-06 | 1984-03-27 | Occidental Research Corporation | Method of repair of short circuits for in situ leaching |
| CN103899244A (en) * | 2012-12-25 | 2014-07-02 | 新疆中核天山铀业有限公司 | Method for repairing damaged drilled hole for in-situ leaching uranium mining through a plurality of layers of expanding materials |
| CN204186330U (en) * | 2014-10-19 | 2015-03-04 | 中国石油集团渤海钻探工程有限公司 | Expansion pipe hanger |
| CN105484689A (en) * | 2015-12-04 | 2016-04-13 | 中国石油集团川庆钻探工程有限公司 | Horizontal well liner completion well entering tool |
| CN107503716A (en) * | 2016-06-14 | 2017-12-22 | 核工业北京化工冶金研究院 | A kind of ground-dipping uranium extraction built-in filter inversely throws gravel device |
| CN108266134A (en) * | 2016-12-30 | 2018-07-10 | 中国石油天然气股份有限公司 | A kind of construction method for being suitable for repairing big well workover |
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2018
- 2018-10-11 CN CN201811181101.8A patent/CN109209276A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4438976A (en) * | 1982-08-06 | 1984-03-27 | Occidental Research Corporation | Method of repair of short circuits for in situ leaching |
| CN103899244A (en) * | 2012-12-25 | 2014-07-02 | 新疆中核天山铀业有限公司 | Method for repairing damaged drilled hole for in-situ leaching uranium mining through a plurality of layers of expanding materials |
| CN204186330U (en) * | 2014-10-19 | 2015-03-04 | 中国石油集团渤海钻探工程有限公司 | Expansion pipe hanger |
| CN105484689A (en) * | 2015-12-04 | 2016-04-13 | 中国石油集团川庆钻探工程有限公司 | Horizontal well liner completion well entering tool |
| CN107503716A (en) * | 2016-06-14 | 2017-12-22 | 核工业北京化工冶金研究院 | A kind of ground-dipping uranium extraction built-in filter inversely throws gravel device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112049612A (en) * | 2019-06-05 | 2020-12-08 | 中核通辽铀业有限责任公司 | Method for building replaceable filter in-situ leaching uranium mining production drill hole |
| CN112647902A (en) * | 2020-12-25 | 2021-04-13 | 核工业北京化工冶金研究院 | In-situ leaching uranium mining drilling filter and well completion method |
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Application publication date: 20190115 |