CN106639946A - Mine sleeve repairing method - Google Patents
Mine sleeve repairing method Download PDFInfo
- Publication number
- CN106639946A CN106639946A CN201611228213.5A CN201611228213A CN106639946A CN 106639946 A CN106639946 A CN 106639946A CN 201611228213 A CN201611228213 A CN 201611228213A CN 106639946 A CN106639946 A CN 106639946A
- Authority
- CN
- China
- Prior art keywords
- pipe
- repairing
- mining
- repairing pipe
- hole
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
Abstract
The invention discloses a mine sleeve repairing method. The repairing method comprises the steps that (1) a repairing pipe with the appropriate length is selected according to a damage position range of the mine sleeve; (2) the head end of a drill rod and the head end of the repairing pipe are detachably connected , and a through hole in the extending direction of the drill rod is formed in the drill rod; (3) the tail end of the repairing pipe is inserted in a pipeline of the mine sleeve, the position of the repairing pipe is adjusted to enable the repairing pipe to cover the damage position range, and the outer wall of the tail end of the repairing pipe is fixedly connected with the inner wall of the mine sleeve; and (4) a reinforcement agent is injected through the through hole until a gap between the outer wall of the repairing pipe and the inner wall of the mine sleeve is fully filled with the reinforcement agent, and after the reinforcement agent is solidified, a reinforced layer is formed. By adopting the mine sleeve repairing method, the repairing cost of the mine sleeve is effectively reduced, the conduction period is shortened significantly, and meanwhile, a repairing mode and a well cementing mode are simplified.
Description
Technical field
The invention belongs to mining machinery field, more particularly to a kind of mining casing salvaging method.
Background technology
With the development of drilling technique, various engineering holes play an important role in construction of coal mine, production phase.Drilling
In construction operation, mining sleeve pipe is inserted after earth's surface gets out engineering hole, and in the outer wall and the engineering hole of the mining sleeve pipe
Inwall between fill cementing concrete ring.But elapse over time, due to using the vibrations of abrasion, mismanagement and rock stratum
Etc. reason, engineering hole is more fragile, causes the cementing concrete ring and the mining casing collapse, the problems such as there is leak,
Certain hidden danger is brought to Safety of Coal Mine Production.
In prior art, more engineering hole is repaired using the mining sleeve pipe whole method repaired, specifically, described
Insert described repairing in mining sleeve pipe to manage, and water is repaired in injection between the outer wall and the inwall of described sleeve pipe of the repairing pipe
Mud, wherein the length for repairing pipe is equal to the length of the mining sleeve pipe.Prior art has some technical problems, a side
Face, the pipe range needs of the repairing pipe are consistent with the pipe range of the mining sleeve pipe, and the repairing pipe is long to directly results in tubing
High cost, the appearance for injecting the problems such as reparation cement is more, the lifting lifting cost for repairing pipe is higher, cause to repair
Mend costly；On the other hand, the overall weight for repairing pipe is big, and down tube mode and well cementation mode are complicated, need to be according to down-hole
Situation is adjusted, and scheme selectes hardly possible, and the problem that should be noted in construction is more, long construction period.
The content of the invention
In view of this, the present invention provides a kind of mining casing salvaging method, it is intended to reduce the repairing expense of the mining sleeve pipe
With, simplify the down tube mode and well cementation mode for repairing pipe, simplify arrangement and method for construction, shorten construction period, so as to solve existing skill
Problem present in art.
Mining casing salvaging method provided by the present invention includes：Step a)：According to the damage location scope of mining sleeve pipe
Select the repairing pipe of appropriate length；Step b)：The head end of drilling rod is detachably connected with the head end of the repairing pipe, wherein, institute
State the through hole offered on drilling rod along the drilling rod bearing of trend；Step c)：The tail end insertion of the repairing pipe is described mining
In the pipeline of sleeve pipe, the position for repairing pipe is adjusted, make the repairing pipe cover the damage location scope；By the repairing
The tail end outer wall of pipe is fixedly connected with the inwall of the mining sleeve pipe；Step d)：Strengthening agent is injected by the through hole until institute
The space between the full outer wall and the inwall of the mining sleeve pipe for repairing pipe of strengthening agent filling is stated, waits the strengthening agent to coagulate
Solid is into back-up coat.
Further, the step c) comprises the steps：Step c1)：The tail end insertion of the repairing pipe is described mining
In the pipeline of sleeve pipe, and the tail end of the repairing pipe is made less than the ttom of pipe of the mining sleeve pipe；Step c2)：Pipe is repaired described
Tail end fix pouch, fill hole sealing agent in the pouch；Step c3)：The adjustment position for repairing pipe, manages described repairing
Cover the damage location scope；Step c4)：Make the pouch discharge the hole sealing agent, wait the hole sealing agent to solidify to be formed
Sealing of hole oxidant layer, the sealing of hole oxidant layer is located at the lower section of the back-up coat.
Further, in the step b), the head end of the drilling rod and the head of the repairing pipe are connected by crossover sub
End；In the step d), the strengthening agent is filled to the outer wall of the repairing pipe by the through hole and the crossover sub
And the space between the inwall of the mining sleeve pipe.
Further, in the step c), the position for repairing pipe is adjusted, makes the length bearing of trend of the repairing pipe
Center is directed at the center of the damage location scope.
Further, the mining casing salvaging method also includes step e)：The head end of the drilling rod is repaired into pipe with described
Head end separate.
Further, in the step c), the tail end of the repairing pipe is inserted the pipeline of the mining sleeve pipe using crane
In, the head that hangs of the crane is detachably connected with the tail end of the drilling rod.
Further, the mining casing salvaging method also includes step f)：The crane is hung into head with the drilling rod
Tail end is separated, and the tail end of the drilling rod is fixedly connected with the hole week ground of engineering hole.
Further, the step d) also includes：The outer of the full repairing pipe of the strengthening agent filling is judged by observation panel
Space between the inwall of wall and the mining sleeve pipe, the observation panel is arranged on the tube wall of the repairing pipe, the observation
Mouth is located at the head end of the repairing pipe.
Further, the strengthening agent is cement.
Preferably, in the step a), the length 40-60 longer than the length of the damage location scope for repairing pipe
Rice.
Using mining casing salvaging method provided by the present invention, described repairing is installed by the drilling rod and is managed, and passed through
The back-up coat is fixed described repairing and is managed, and significantly reduces the renewal expense of the mining sleeve pipe, simplifies described repairing and manages
Down tube mode and well cementation mode, so as to simplify arrangement and method for construction, shorten construction period；By arranging the sealing of hole oxidant layer,
Reduce further renewal expense and construction period；By arranging the crossover sub, the filling work of the back-up coat is simplified
Skill, easy construction；By arranging the observation panel, the filling control to the strengthening agent is realized, prevent the strengthening agent from filling
Dress excessively blocks the mining sleeve pipe.
Description of the drawings
Preferred embodiment in the present invention will be described in detail by accompanying drawing below, it will help understand the purpose of the present invention and excellent
Point, wherein:
Fig. 1 is the structural representation of the mining sleeve pipe repaired using the method for the embodiment of the present invention.
Specific embodiment
With reference to embodiment, the present invention is described in detail.Wherein identical parts identical reference table
Show.It should be noted that the word "front", "rear", "left", "right", "up" and "down" used in describing below refers to accompanying drawing
In direction, word " interior " and " outward " refer respectively to the direction towards or away from particular elements geometric center.
Fig. 1 is the structural representation of the mining sleeve pipe repaired using the method for the embodiment of the present invention.As shown in figure 1, this is excellent
The mining casing salvaging method that embodiment is provided is selected to include：Step a)：Selected according to the damage location scope 2 of mining sleeve pipe 1
The repairing pipe 3 of appropriate length；Step b)：The head end of drilling rod 4 is detachably connected with the head end of the repairing pipe 3, wherein, it is described
The through hole along the bearing of trend of the drilling rod 4 is offered on drilling rod 4；Step c)：The tail end insertion of the repairing pipe 3 is described mining
In the pipeline of sleeve pipe 1, the position for repairing pipe 3 is adjusted, make the repairing pipe 3 cover the damage location scope 2；Will be described
The tail end outer wall for repairing pipe 3 is fixedly connected with the inwall of the mining sleeve pipe 1；Step d)：Strengthening agent is injected by the through hole
Until the space between the full outer wall and the inwall of the mining sleeve pipe 1 for repairing pipe 3 of strengthening agent filling, waits described
Strengthening agent solidifies to form back-up coat 5.
As shown in figure 1, this preferred embodiment is in work progress, and in the step a), can be true by means such as well loggings
The fixed damage location scope 2, it is preferable that the damage location scope 2 is deduced by the water leakage situation of underworkings；When sentencing
Break and after the damage location scope 2, select the repairing pipe 3 of appropriate length, in this preferred embodiment, the length for repairing pipe 3
Degree 40-60 rice longer than the length of the damage location scope 2, using this structure setting, it is ensured that the damage location model
Enclose 2 to be completely covered by the repairing pipe 3, and leave certain length allowance, prevent because the damage location scope 2 judges not
The accurate or later stage expands causes repairing not thorough.In the step b)：Hanging for the repairing pipe 3 is realized by the drilling rod 4
It is filled with and moving up and down in the pipeline of mining sleeve pipe 1, the head end of the drilling rod 4 is removable with the head end of the repairing pipe 3
Unload connection to realize after the completion of construction, the drilling rod 4 can be removed, it is convenient to construct again.In the step c)：Repair described in adjustment
The position of pipe 3 is mended, makes the repairing pipe 3 cover the damage location scope 2, the tube wall for repairing pipe 3 covers the breakage
Position range 2 effectively realizes the repairing with the mining sleeve pipe 1；The tail end outer wall and the mining set for repairing pipe 3
The inwall of pipe 1 is fixedly connected, step d)：Strengthening agent is injected by the through hole until the full repairing pipe of strengthening agent filling
Space between the inwall of 3 outer wall and the mining sleeve pipe 1, waits the strengthening agent to solidify to form back-up coat 5.Repair described
The tail end outer wall for mending pipe 3 is fixedly connected with the inwall of the mining sleeve pipe 1, prevents the repairing stress in work progress of pipe 3
Crooked or generation position deflection.In the step d)：The strengthening agent is outer by the full repairing pipe 3 of through hole filling
Space between the inwall of wall and the mining sleeve pipe 1, realizes the sealing to the mining sleeve pipe 1 and protects, while fixed connect
The mining sleeve pipe 1 and the repairing pipe 3 are connect；Solidify to form back-up coat 5 by waiting the strengthening agent, prevent the reinforcing
Built on the sand the caused repairing pipe 3 offsets for agent.
Using this preferred embodiment, relative to prior art, the repairing pipe 3 for being adopted is only in the damaged position
Put scope 2 to be repaired, meet the repairing requirement of the mining sleeve pipe 1, while substantially reducing the length of the repairing pipe 3
Degree, on the one hand, it is described repair pipe 3 contraction in length effectively reduce steel usage amount, especially in it is described repairing pipe 3 adopt
With the situation of seamless steel pipe, while decreasing the usage amount of the strengthening agent, the setting time of the strengthening agent is shortened, entered
And shorten the cycle；On the other hand, the contraction in length for repairing pipe 3, can be with the lifting device of selection of small, operating expenses drop
Difficulty of construction is reduced while low, arrangement and method for construction has obtained effective simplification.
As shown in figure 1, in this preferred embodiment, the step c) comprises the steps：Step c1)：By the repairing pipe 3
Tail end insert in the pipeline of the mining sleeve pipe 1, and make the tail end of the repairing pipe 3 less than the ttom of pipe of the mining sleeve pipe 1；
Step c2)：Pouch is fixed in the tail end of the repairing pipe 3, in the pouch hole sealing agent is filled；Step c3)：Adjust the repairing
The position of pipe 3, makes the repairing pipe 3 cover the damage location scope 2；Step c4)：The pouch is set to discharge the sealing of hole
Agent, waits the hole sealing agent to solidify to form sealing of hole oxidant layer, and the sealing of hole oxidant layer is located at the lower section of the back-up coat 5.Repair described
The ttom of pipe of the tail end less than the mining sleeve pipe 1 of pipe 3 is mended, the staff positioned at the ttom of pipe of mining sleeve pipe 1 will can fill
The pouch of the hole sealing agent is tied up on the outer wall of the tail end of the repairing pipe 3, and the hole sealing agent can be from Luoyang brocade continuous heavy rain
The mining quick blocking glue of Trade Co., Ltd.'s production；Then make the repairing pipe 3 cover the damage location scope 2, control
The pouch discharges the hole sealing agent, and the hole sealing agent is in the tail end outer wall for repairing pipe 3 with the mining sleeve pipe 1
Expand rapidly between wall, the fixation repairing pipe 3 is shut in tail end outer wall and the mining sleeve pipe 1 of the repairing pipe 3
Space between wall, after hole sealing agent solidification, forms the sealing of hole oxidant layer 6, in the step d), the filling strengthening agent
Due to the presence of the sealing of hole oxidant layer 6, it is to avoid fall into the ttom of pipe of the mining sleeve pipe 1.
In this preferred embodiment, in the step b), the head end of the drilling rod 4 and described is connected by crossover sub 7
Repair the head end of pipe 3；In the step d), the strengthening agent is filled to described by the through hole and the crossover sub 7
Repair the space between the outer wall and the inwall of the mining sleeve pipe 1 of pipe 3.The head end of the crossover sub 7 and the drilling rod 4
Head end connect, the tail end of the crossover sub 7 with it is described repairing pipe 3 head end be connected, the tail end of the crossover sub 7 with it is described
Repair and be provided with division board 8 between pipe 3, at least one liquid-leaking nozzle, the liquid-leaking nozzle are offered on the tube wall of the crossover sub 7
Between the head end and the division board 8 of the crossover sub 7.During use, the strengthening agent passes through the through hole
And the head end of the crossover sub 7 is then filled to the outer wall and the mining set of the repairing pipe 3 through the liquid-leaking nozzle
Space between the inwall of pipe 1, by arranging the division board 8, prevents the strengthening agent from passing through the repairing pipe 3 and enters described
Obstruction is caused in mining sleeve pipe 1.
In this preferred embodiment, the position for repairing pipe 3 is adjusted, in making the length bearing of trend of the repairing pipe 3
The center of damage location scope 2 described in heart position alignment.By this kind of setting structure, on the one hand, ensure that repair efficiency
Preferably, structure is repaired durable in use；On the other hand, the length of the repairing pipe 3 is farthest shortened, is saved and is constructed into
This.
In this preferred embodiment, the method for repairing and mending of mining sleeve pipe 1 also includes step e)：By the head end of the drilling rod 4 with
The head end for repairing pipe 3 is separated.The step e) is located at after the step d).Repairing is mended after the completion of construction operation, is passed through
Separate the head end of the drilling rod 4 and the head end of the repairing pipe 3, it is possible to achieve the reuse of the drilling rod 4, facilitate the brill
Bar 4 is reused.
In this preferred embodiment, in the step c), the tail end of the repairing pipe 3 is inserted into the mining set using crane
In the pipeline of pipe 1, the head that hangs of the crane is detachably connected with the tail end of the drilling rod 4；The method for repairing and mending of mining sleeve pipe 1 is also
Including step f)：The head that hangs of the crane is separated with the tail end of the drilling rod 4, by the tail end of the drilling rod 4 and engineering hole
Hole week, ground was fixedly connected, and the step f) is located at after step c), before step d).Using this kind of form of construction work, can be by
The tail end of the drilling rod 4 is fixedly connected with ground by fork, discharges the crane, and crane can be saved in follow-up construction
Use time, construction cost greatly reduces.
As shown in figure 1, in this preferred embodiment, the step d) also includes：Judge that the strengthening agent is filled out by observation panel 9
Space between outer wall full of the repairing pipe 3 and the inwall of the mining sleeve pipe 1, the observation panel 9 is arranged at described repairing
Mend on the tube wall of pipe 3, the observation panel 9 is located at the head end of the repairing pipe 3.It is described to add during the strengthening agent is irrigated
Gu the space between the full outer wall and the inwall of the mining sleeve pipe 1 for repairing pipe 3 is filled in agent, the strengthening agent can pass through
The observation panel 9 for being arranged on the head end of the repairing pipe 3 flows to the bottom of the mining sleeve pipe 1, positioned at the mining sleeve pipe 1
When the operating personnel of bottom has observed that the strengthening agent falls, you can send the instruction for stopping the perfusion strengthening agent.Prevent
The strengthening agent continues perfusion causes the obstruction mining sleeve pipe 1, and avoids the waste of the strengthening agent.
In this preferred embodiment, the strengthening agent is cement.The density of the cement is preferably 1.4g/cm3-1.8g/cm3,
Construction cost can be reduced as strengthening agent from cement, and, it is ensured that between the repairing pipe 3 and the mining sleeve pipe 1
Fixed effect is more stable.
Using mining casing salvaging method provided by the present invention, the repairing pipe 3 is installed by the drilling rod 4, and led to
Cross the back-up coat 5 and fix the repairing pipe 3, significantly reduce the renewal expense of the mining sleeve pipe 1, simplify described repairing
The down tube mode and well cementation mode of pipe 3 are mended, so as to simplify arrangement and method for construction, construction period is shortened；By arranging the sealing of hole
Oxidant layer 6, reduce further renewal expense and construction period；By arranging the crossover sub 7, the back-up coat 5 is simplified
Filling process, easy construction；By arranging the observation panel 9, the filling control to the strengthening agent is realized, prevent described
Strengthening agent is filling excessively to block the mining sleeve pipe 1.
Finally it should be noted that：Above example only to illustrate technical scheme, rather than a limitation；Although
The present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To modify to the technical scheme described in foregoing embodiments, or equivalent is carried out to which part technical characteristic；
And these modifications or replacement, do not make the scope of the essence disengaging various embodiments of the present invention technical scheme of appropriate technical solution.
Claims (10)
1. a kind of mining casing salvaging method, it is characterised in that methods described includes：
Step a)：The repairing pipe of appropriate length is selected according to the damage location scope of mining sleeve pipe；
Step b)：The head end of drilling rod is detachably connected with the head end of the repairing pipe, wherein, offer on the drilling rod along institute
State the through hole of drilling rod bearing of trend；
Step c)：The tail end of the repairing pipe is inserted in the pipeline of the mining sleeve pipe, the position for repairing pipe is adjusted, is made
The repairing pipe covers the damage location scope；The tail end outer wall of the repairing pipe is fixed with the inwall of the mining sleeve pipe
Connection；
Step d)：Strengthening agent is injected by the through hole until the full outer wall and the ore deposit for repairing pipe of strengthening agent filling
With the space between the inwall of sleeve pipe, the strengthening agent is waited to solidify to form back-up coat.
2. mining casing salvaging method according to claim 1, it is characterised in that the step c) comprises the steps：
Step c1)：The tail end of the repairing pipe is inserted in the pipeline of the mining sleeve pipe, and makes the tail end of the repairing pipe low
In the ttom of pipe of the mining sleeve pipe；
Step c2)：Pouch is fixed in the tail end of the repairing pipe, in the pouch hole sealing agent is filled；
Step c3)：The adjustment position for repairing pipe, makes the repairing pipe cover the damage location scope；
Step c4)：Make the pouch discharge the hole sealing agent, wait the hole sealing agent to solidify to form sealing of hole oxidant layer, the sealing of hole
Oxidant layer is located at the lower section of the back-up coat.
3. mining casing salvaging method according to claim 1, it is characterised in that in the step b), is connect by conversion
The head end of the head connection drilling rod and the head end of the repairing pipe；In the step d), the strengthening agent passes through the through hole
And the crossover sub is filled to the space between the outer wall and the inwall of the mining sleeve pipe of the repairing pipe.
4. mining casing salvaging method according to claim 1, it is characterised in that in the step c), repaiies described in adjustment
The position of pipe is mended, the centre bit of the center alignment damage location scope of the length bearing of trend of the repairing pipe is made
Put.
5. mining casing salvaging method according to claim 1, it is characterised in that the mining casing salvaging method is also wrapped
Include step e)：The head end of the drilling rod is separated with the head end of the repairing pipe.
6. mining casing salvaging method according to claim 1, it is characterised in that in the step c), will using crane
The tail end for repairing pipe is inserted in the pipeline of the mining sleeve pipe, the crane to hang head detachable with the tail end of the drilling rod
Connection.
7. mining casing salvaging method according to claim 6, it is characterised in that the mining casing salvaging method is also wrapped
Include step f)：The head that hangs of the crane is separated with the tail end of the drilling rod, by the hole week of the tail end of the drilling rod and engineering hole
Ground is fixedly connected.
8. mining casing salvaging method according to claim 1, it is characterised in that the step d) also includes：By seeing
Cha Kou judges the space between the full outer wall and the inwall of the mining sleeve pipe for repairing pipe of the strengthening agent filling, the sight
Cha Kou is arranged on the tube wall of the repairing pipe, and the observation panel is located at the head end of the repairing pipe.
9. mining casing salvaging method according to claim 1, it is characterised in that the strengthening agent is cement.
10. the mining casing salvaging method according to any one in claim 1-9, it is characterised in that the step a)
In, the length 40-60 rice longer than the length of the damage location scope for repairing pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611228213.5A CN106639946B (en) | 2016-12-27 | 2016-12-27 | Mining casing salvaging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611228213.5A CN106639946B (en) | 2016-12-27 | 2016-12-27 | Mining casing salvaging method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106639946A true CN106639946A (en) | 2017-05-10 |
| CN106639946B CN106639946B (en) | 2019-05-03 |
Family
ID=58832824
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611228213.5A Active CN106639946B (en) | 2016-12-27 | 2016-12-27 | Mining casing salvaging method |
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| CN204729050U (en) * | 2015-06-15 | 2015-10-28 | 中国石油集团西部钻探工程有限公司 | Pin-connected panel slips cement rejoining device |
| CN105443064A (en) * | 2015-12-30 | 2016-03-30 | 中国石油天然气股份有限公司 | Underground controllable self-expansion casing patching pipe |
| CN105604517A (en) * | 2016-02-23 | 2016-05-25 | 中国石油化工股份有限公司 | Casing pipe patching relay type cement paste replacement device |
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| CN105443064A (en) * | 2015-12-30 | 2016-03-30 | 中国石油天然气股份有限公司 | Underground controllable self-expansion casing patching pipe |
| CN105604517A (en) * | 2016-02-23 | 2016-05-25 | 中国石油化工股份有限公司 | Casing pipe patching relay type cement paste replacement device |
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| Publication number | Publication date |
|---|---|
| CN106639946B (en) | 2019-05-03 |
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