CN107216090A - Waste and old oil and gas pipeline Harmless injecting treatment method - Google Patents
Waste and old oil and gas pipeline Harmless injecting treatment method Download PDFInfo
- Publication number
- CN107216090A CN107216090A CN201710432482.1A CN201710432482A CN107216090A CN 107216090 A CN107216090 A CN 107216090A CN 201710432482 A CN201710432482 A CN 201710432482A CN 107216090 A CN107216090 A CN 107216090A
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- waste
- mud
- gas pipeline
- grades
- old oil
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00146—Sprayable or pumpable mixtures
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00663—Uses not provided for elsewhere in C04B2111/00 as filling material for cavities or the like
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete
Abstract
The invention provides a kind of waste and old oil and gas pipeline Harmless injecting treatment method, first pass through a certain proportion of flyash, water and portland cement are in one-level agitator and stir to form one-level mud, then imported again by conduit in two grades of agitators, and bentonite and retarder are proportionally added into two grades of agitators and stirs to form two grades of mud, two grades of mud are injected in waste and old oil and gas pipeline finally by grouting pump, two grades of mud cause the oil gas residue in waste and old oil and gas pipeline to discharge, and solidify the full waste and old oil and gas pipeline of filling, form hatching solid, avoid debris from being again introduced into waste and old oil and gas pipeline and form secondary pollution, so that filling safety and environmental protection；Two-stage stirring can be more beneficial for realizing the conveying of long range, retarder can effectively extend the setting time of mud, bentonite can reduce the frictional force between mud and waste and old oil and gas pipeline so that two grades of mud are expanded with full of waste and old oil and gas pipeline in process of setting.
Description
Technical field
The present invention relates to waste and old oil and gas pipeline Harmless treatment technology, in particular to a kind of waste and old oil transportation gas
Pipeline Harmless injecting treatment method.
Background technology
Any product has its to use the time limit safely, has exceeded certain time limit and has needed to scrap processing, oil and gas pipeline
It is unexceptional.In order to eliminate production and the Environmental Risk of natural gas transportation, enterprise can build new oil and gas pipeline, and dispose
Discarded oil and gas pipeline.China's Land petroleum pipeline total length alreadys exceed 12 kilometers, wherein having more than 30% to run more than
20 years, the situation that mileage length, the time limit are long, hidden danger is current domestic oil-gas pipeline operation mostly.
Country unprecedentedly payes attention to the safety problem of oil gas pipe network, and State Council organizes relevant departments to oil since in June, 2014
Feed channel carries out special examination, and investigates pipe-line and account for that pressure, safe distance are not enough, be unsatisfactory for safety requirements intersection passes through
At nearly etc. complete hidden danger 30,000, there is substantial amounts of pipeline to need change route and change pipeline, this creates the terminal a large amount of discarded ground
Lower pipeline.These a large amount of underground pipings how are handled safety and environmental protection and it is not one to environment generation secondary pollution carves not
Hold and delay the problem of needing to solve.
See general longer and its periphery construction environment complexity, the safe and environment-friendly pressure of construction because discarded pipe operation seems
Power is larger, if just Euro that traditional heavy excavation pipe cutting disposal method, although can thoroughly remove a hidden danger, but there is ground
Upper facility, attachment dismounting amount are excessive, the problems such as underground object processing is extremely complex, are difficult to implement.It is such as slow using water filling, note
Lose agent, note nitrogen tube sealing scheme, though can the safety that blocks a line of temporarily certificates handling, there is the carry-over later stage in pipe safe and two
The hidden danger of secondary pollution environment.
At present, the standards and norms that the harmless treatment of domestic discarded underground oil pipeline does not have correlation also are put into effect, and
It there is no and complete successfully put into practice case and can use for reference.
The content of the invention
It is a primary object of the present invention to provide a kind of waste and old oil and gas pipeline Harmless injecting treatment method, to solve
Waste and old oil and gas pipeline of the prior art is difficult to the problem of safety and environmental protection is handled.
To achieve these goals, the invention provides a kind of waste and old oil and gas pipeline Harmless injecting treatment method,
Including step S10 to step S30, wherein step S10：Flyash, water, portland cement are proportionally put into one-level agitator
It is interior and stir to form one-level mud, one-level mud is passed through into conduit and imported in two grades of agitators；Step S20：Importing one
After level mud, bentonite and retarder are proportionally added in two grades of agitators and stirs to form two grades of mud；Step
Rapid S30：Start grouting pump and two grades of mud are injected into progress slip casting closure in waste and old oil and gas pipeline.
Further, in step S10 and step S20, flyash, water, silicate cement in 1 cubic metre of two grades of mud
The volume ratio difference of mud, bentonite and retarder is as follows：The ratio of flyash is to be less than or equal to 25% more than or equal to 20%；Water
Ratio is more than or equal to 40% and is less than or equal to 50%；The ratio of portland cement is more than or equal to 20% and is less than or equal to 25%；Bentonitic ratio
Example is more than or equal to 5% and is less than or equal to 10%；The ratio of retarder is more than or equal to 5% and is less than or equal to 10%..
Further, step S21 is also included between step S20 and step S30：Often stirring is entered for 30 minutes to two grades of mud
The denseness of row two grades of mud of observation, if the denseness of two grades of mud is excessively dilute or overrich, accordingly fills into fine coal in proportion
One or more in ash, water, portland cement, bentonite and retarder are adjusted.
Further, in step s 30, the grouting pressure control of grouting pump is being less than or equal to 3Mpa more than 1Mpa, works as note
When the grouting pressure of stock pump is more than 3Mpa, retarder is added in two grades of mud in proportion.
Further, before step S30, the pretreatment of waste and old oil and gas pipeline is included：By waste and old oil and gas pipeline
First end welding closure is carried out by blank flange, skirt is connected at the second end of waste and old oil and gas pipeline to sewage collecting pool
Or waste water tank is in-car.
Further, when the outlet of skirt flows continually out mud, slip casting pump work is stopped, and by waste and old oil and gas pipeline
The second end blocked.
Apply the technical scheme of the present invention, first pass through a certain proportion of flyash, water and portland cement and stirred in one-level
Bucket is interior and stirs to form one-level mud, is then imported again by conduit in two grades of agitators, and pressed in two grades of agitators
Ratio adds bentonite and retarder and stirs to form two grades of mud, and two grades of mud then are injected into useless by grouting pump again
In old oil and gas pipeline, the flowing of two grades of mud causes the oil gas residue in waste and old oil and gas pipeline to be discharged from port, and
Two grades of full waste and old oil and gas pipelines of mud solidification filling, form hatching solid, will not forever cave in after a period of time, it is to avoid
Debris, which is again introduced into waste and old oil and gas pipeline, forms secondary pollution so that filling safety and environmental protection.And two-stage stirring can be more
It is advantageously implemented the conveying of long range, it is to avoid the appearance of solidification phenomenon in conveyance conduit, retarder can effectively extend mud
The setting time of slurry, bentonite can reduce the frictional force between mud and waste and old oil and gas pipeline so that two grades of mud can
The full longer waste and old oil and gas pipeline of filling, and two grades of mud are expanded with full of waste and old oil/gas pipe in process of setting
Road, it is ensured that longer waste and old oil and gas pipeline can be completely filled, it is to avoid the situation of part-solid part hollow occurs.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its illustrate be used for explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the operating process schematic diagram of the waste and old oil and gas pipeline Harmless injecting treatment method of the present invention；
Fig. 2 shows the annexation figure for realizing device of method in Fig. 1.
Wherein, above-mentioned accompanying drawing is marked including the following drawings：
10th, one-level agitator；20th, two grades of agitators；30th, grouting pump；40th, waste and old oil and gas pipeline；41st, blank flange；50th, it is single
To valve；60th, 30KW generators.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
It is noted that described further below is all exemplary, it is intended to provide further instruction to the application.Unless another
Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
In the present invention, in the case where not making opposite explanation, the noun of locality used is typically pin such as " upper and lower, top, bottom "
For direction shown in the drawings, or for part in itself on vertical, vertical or gravity direction for；Equally
Ground, for ease of understanding and describing, " inside and outside " refers to the inside and outside of the profile relative to each part in itself, but the above-mentioned noun of locality is not
For limiting the present invention.
It is difficult to the problem of safety and environmental protection is handled to solve waste and old oil and gas pipeline of the prior art, the invention provides one
Plant waste and old oil and gas pipeline Harmless injecting treatment method.
As depicted in figs. 1 and 2, waste and old oil and gas pipeline Harmless injecting treatment method includes step S10 to step
S30, wherein, step S10：Flyash, water, portland cement are proportionally put into one-level agitator 10 and the shape that stirs
Into one-level mud, one-level mud is imported in two grades of agitators 20 by conduit；Step S20：After one-level mud is imported, press
Bentonite and retarder are added in two grades of agitators 20 and stir to form two grades of mud according to ratio；Step S30：Start note
Stock pump 30, which injects two grades of mud, carries out slip casting closure in waste and old oil and gas pipeline 40.
A certain proportion of flyash, water and portland cement are first passed through in one-level agitator 10 and stirs to form one
Level mud, is then imported in two grades of agitators 20 by conduit again, and be proportionally added into two grades of agitators 20 bentonite and
Retarder simultaneously is stirred to form two grades of mud, and two grades of mud then are injected into waste and old oil and gas pipeline 40 by grouting pump 30 again
Interior, the flowing of two grades of mud causes the oil gas residue in waste and old oil and gas pipeline 40 to be discharged from port, and after a period of time
Two grades of full waste and old oil and gas pipelines 40 of mud solidification filling, form hatching solid, will not forever cave in, it is to avoid debris is again
Secondary pollution is formed in into waste and old oil and gas pipeline 40 so that filling safety and environmental protection.And two-stage stirring can be more beneficial for
Realize the conveying of long range, it is to avoid the appearance of solidification phenomenon in conveyance conduit, retarder can effectively extend the solidifying of mud
Gu time, bentonite can reduce the frictional force between mud and waste and old oil and gas pipeline 40 so that two grades of mud can be filled
Full longer waste and old oil and gas pipeline, and two grades of mud are expanded with full of waste and old oil and gas pipeline 40 in process of setting,
Ensure that longer waste and old oil and gas pipeline 40 can be completely filled, it is to avoid the situation of part-solid part hollow occurs.
Preferably, by verification experimental verification, flyash in 1 cubic metre of two grades of mud, water, portland cement, bentonite and
The volume ratio difference of retarder is as follows：The ratio of flyash is to be less than or equal to 25% more than or equal to 20%；The ratio of water be more than etc.
It is less than or equal to 50% in 40%；The ratio of portland cement is more than or equal to 20% and is less than or equal to 25%；Bentonitic ratio is more than or equal to
5% is less than or equal to 10%；The ratio of retarder is more than or equal to 5% and is less than or equal to 10%.The addition of flyash can reduce silicate cement
The consumption of mud, reduction closure processing cost, bentonite can promote the formation of mud, two grades of mud of reduction and waste and old oil/gas pipe
Frictional force between road 40 so that two grades of mud can be conveyed farther distance, and enable to two grades of mud in solidification
When expand, so as to fill completely waste and old oil and gas pipeline 40, realize hatching solid, it is ensured that can be by waste and old oil/gas pipe
Exhaust gases in road 40 are all discharged and avoid the secondary entrance of pollutant, are prevented effectively from the appearance for the situation of caving in so that at filling
Reason is safe and reliable；Retarder can extend the setting time of two grades of mud, can be flowed in waste and old oil and gas pipeline 40
Longer distance, so as to realize effective filling of long waste and old oil and gas pipeline 40.
Preferably, step S21 is also included between step S20 and step S30：Often stir 30 minutes and two grades of mud are carried out
Observe the denseness of two grades of mud, if the denseness of two grades of mud is excessively dilute or overrich, accordingly filled into proportion flyash,
One or more in water, portland cement, bentonite and retarder are adjusted.Flyash, water, portland cement, swelling
Soil and retarder are all within certain proportion, it tends to be difficult to which property addition is accurate in place, is constantly adjusted by observation,
So that two grades of mud reach suitable denseness, it is ensured that slip casting process, process of setting are smoothed out.
Preferably, in step s 30, the grouting pressure control of grouting pump 30 is being less than or equal to 3Mpa more than 1Mpa, works as note
When the grouting pressure of stock pump 30 is more than 3Mpa, retarder is added in two grades of mud in proportion.Set on grouting pump 30
There is pressure valve, the pressure of slip casting can be directly observed by pressure valve, illustrate that two grades of mud are excessively thick when pressure is excessive, need
It is diluted.
Also need to pre-process waste and old oil and gas pipeline 40 before slip casting is carried out：By waste and old oil and gas pipeline 40
First end carries out welding closure by blank flange 41, and skirt is connected at the second end of waste and old oil and gas pipeline 40 to sewage collecting
Pond or waste water tank are in-car.Block the first end of waste and old oil and gas pipeline 40 can be easy to enable waste and old oil and gas pipeline 40 by
Filling is full, can be avoided in the second end connection skirt to sewage collecting pool or waste water tank in-car of waste and old oil and gas pipeline 40 waste and old
Exhaust gases in oil and gas pipeline 40 flow out and cause secondary pollution to environment.
Preferably, when the outlet of skirt flows continually out mud, stop grouting pump 30 and work, and by waste and old oil and gas pipeline
40 the second end is blocked.
As shown in Fig. 2 check valve 50 is additionally provided with Grouting Pipe between grouting pump 30 and waste and old oil and gas pipeline 40, side
Just the control of slip casting process is carried out, grouting pump 30, one-level agitator 10 and two grades of agitators 20 are entered for 60 groups by 30KW generators
Row power supply, so that solving field does not have the problem of electric power.
As can be seen from the above description, the above embodiments of the present invention realize following technique effect：
1. realizing the hatching solid of waste and old oil and gas pipeline 40, exhaust gases are discharged and being again introduced into for pollutant are avoided and shape
Into secondary pollution；
2. two grades of stirrings enable to stir, extend the setting time of mud, effectively adapt to long distance delivery；
3. bentonite can promote the formation of mud, the frictional force between two grades of mud of reduction and waste and old oil and gas pipeline 40 makes
Farther distance can be conveyed by obtaining two grades of mud, and enable to two grades of mud to be expanded in solidification, so as to
The full waste and old oil and gas pipeline 40 of filling；
4. retarder can extend the setting time of two grades of mud, it can be flowed in waste and old oil and gas pipeline 40 longer
Distance, so as to realize effective filling of long waste and old oil and gas pipeline 40.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, work, device, component and/or combinations thereof.
It should be noted that term " first " in the description and claims of this application and above-mentioned accompanying drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so using
Data can exchange in the appropriate case, so as to presently filed embodiment described herein can with except herein diagram or
Order beyond those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that cover
Lid is non-exclusive to be included, for example, the process, method, system, product or the equipment that contain series of steps or unit are not necessarily limited to
Those steps or unit clearly listed, but may include not list clearly or for these processes, method, product
Or the intrinsic other steps of equipment or unit.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (6)
1. a kind of waste and old oil and gas pipeline Harmless injecting treatment method, it is characterised in that including：
Step S10：Flyash, water, portland cement are proportionally put into one-level agitator（10）It is interior and stir to be formed
One-level mud, two grades of agitators are imported by the one-level mud by conduit（20）It is interior；
Step S20：After the one-level mud is imported, proportionally in two grades of agitators（20）It is interior addition bentonite and
Retarder simultaneously stirs to form two grades of mud；
Step S30：Start grouting pump（30）Two grades of mud is injected into the waste and old oil and gas pipeline（40）Interior carry out slip casting
Closure.
2. waste and old oil and gas pipeline Harmless injecting treatment method according to claim 1, it is characterised in that described
In step S10 and the step S20, flyash, the water, the silicate cement described in 1 cubic metre of two grades of mud
The volume ratio difference of mud, the bentonite and the retarder is as follows：
The ratio of the flyash is to be less than or equal to 25% more than or equal to 20%；
The ratio of the water is more than or equal to 40% and is less than or equal to 50%；
The ratio of the portland cement is more than or equal to 20% and is less than or equal to 25%；
The bentonitic ratio is more than or equal to 5% and is less than or equal to 10%；
The ratio of the retarder is more than or equal to 5% and is less than or equal to 10%.
3. waste and old oil and gas pipeline Harmless injecting treatment method according to claim 2, it is characterised in that described
Also include step S21 between step S20 and the step S30：Described in often stirring is observed two grades of mud for 30 minutes
The denseness of two grades of mud, if the denseness of two grades of mud is excessively dilute or overrich, accordingly fills into the powder in proportion
One or more in coal ash, the water, the portland cement, the bentonite and the retarder are adjusted.
4. waste and old oil and gas pipeline Harmless injecting treatment method according to claim 2, it is characterised in that described
In step S30, the grouting pump（30）Grouting pressure control more than 1Mpa be less than or equal to 3Mpa, when the grouting pump（30）
Grouting pressure be more than 3Mpa when, add the retarder in two grades of mud in proportion.
5. waste and old oil and gas pipeline Harmless injecting treatment method according to claim 1, it is characterised in that in step
Before S30, in addition to the waste and old oil and gas pipeline（40）Pretreatment：By the waste and old oil and gas pipeline（40）First end
Pass through blank flange（41）Welding closure is carried out, in the waste and old oil and gas pipeline（40）The second end connect skirt to sewage receive
Ji Chi or waste water tank are in-car.
6. waste and old oil and gas pipeline Harmless injecting treatment method according to claim 5, it is characterised in that when described
When the outlet of skirt flows continually out mud, stop the grouting pump（30）Work, and by the waste and old oil and gas pipeline（40）'s
Second end is blocked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710432482.1A CN107216090B (en) | 2017-06-09 | 2017-06-09 | Pollution-free grouting treatment method for waste oil and gas pipelines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710432482.1A CN107216090B (en) | 2017-06-09 | 2017-06-09 | Pollution-free grouting treatment method for waste oil and gas pipelines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107216090A true CN107216090A (en) | 2017-09-29 |
| CN107216090B CN107216090B (en) | 2020-02-11 |
Family
ID=59948242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710432482.1A Active CN107216090B (en) | 2017-06-09 | 2017-06-09 | Pollution-free grouting treatment method for waste oil and gas pipelines |
Country Status (1)
| Country | Link |
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| CN (1) | CN107216090B (en) |
Cited By (1)
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| CN114409324A (en) * | 2020-10-28 | 2022-04-29 | 中国石油天然气股份有限公司 | Filling material for waste oil and gas pipelines, preparation method thereof and grouting process |
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| Publication number | Publication date |
|---|---|
| CN107216090B (en) | 2020-02-11 |
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Effective date of registration: 20200928 Address after: 100020, Beijing, Chaoyang District Xin Tung Street, a No. six, Twelfth layers Patentee after: SINOPEC OILFIELD SERVICE Corp. Patentee after: SINOPEC PETROLEUM CONSTRUCTION ZHONGYUAN Corp. Address before: Puyang City, Henan province 457000 Victory Road No. 232 Patentee before: SINOPEC PETROLEUM CONSTRUCTION ZHONGYUAN Corp. |
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