CN105178323A - Grouting disposal method for long-distance large-caliber retired pipeline - Google Patents
Grouting disposal method for long-distance large-caliber retired pipeline Download PDFInfo
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- CN105178323A CN105178323A CN201510563002.6A CN201510563002A CN105178323A CN 105178323 A CN105178323 A CN 105178323A CN 201510563002 A CN201510563002 A CN 201510563002A CN 105178323 A CN105178323 A CN 105178323A
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- pipeline
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- grouting
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Abstract
The invention relates to a grouting disposal method for a long-distance large-caliber retired pipeline. The grouting disposal method is particularly suitable for disposing an oil-gas gathering and transferring retired pipeline with the distance being more than 0.5km and the pipe diameter being larger than 40cm, can protect environment, and ensures the disposal security of the retired pipeline. The disposal method comprises the following steps: the retired pipeline is divided into a pipeline to be cut and a grouting pipeline, and the pipeline to be cut and the grouting pipeline are arranged at intervals; the pipeline to be cut is cut out to move out of the ground, a grouting material is poured into the grouting pipeline after being plugged, and the grouting pipeline is retained in the underground. The disposal method has the advantages of being reasonable in design, simple in construction and less in investment, can ensure that the retired pipeline is safely retained in the underground for a long time, protects the environment, and has significant social benefits.
Description
Technical field
The present invention relates to the method for disposal of retired pipeline; particularly a kind of slip casting method of disposal growing distance, the retired pipeline of heavy caliber; be particularly useful for disposing the retired pipeline of oil-gas gathering and transportation that more than 0.5km, caliber are greater than 40cm, can protection of the environment, ensure the disposal safety of retired pipeline.
Background technology
At present at home in oil gas field surface construction, for the disposal of retired pipeline, the general dismounting that can remove, have building to be difficult to remove on the ground, conventional construction method seals up for safekeeping after the method process utilizing water filling to replace residual stock in retired pipeline.But by again checking sealing rear pipeline up for safekeeping, pipe perforation after water filling is serious, in pipeline, pent-up water permeates the ground, contaminated soil and underground water, and there is no filled media in pipeline after perforation, hoist after the volatilization of inner-walls of duct residual stock gathering, once run into naked light, there is very large potential safety hazard, therefore the safety problem that can only solve retired pipeline in the short time is sealed in water filling up for safekeeping, is difficult to reach permanent disposal effect.At present, according to looking into new situation, the disposal for retired pipeline does not still have common practice in the world.And the domestic disposal for retired pipeline does not still explicitly call for, still there is no regulation, standard and construction process requirement throwing aside in way selection, process environment of throwing aside management and follow-up supervision etc.And in the face of the existing disposal Problems existing of current retired pipeline, need a kind of method of disposal, to ensure the safety of retired pipeline.
Summary of the invention
Object of the present invention is just to provide a kind of slip casting method of disposal growing distance, the retired pipeline of heavy caliber; in view of the foregoing defects the prior art has; grouting material is injected in retired pipeline; a kind of joint disposal method of safety, environmental protection, low cost is provided; avoid the generation of bad accident, protection of the environment, ensure the safety of retired pipeline.
Technical solution of the present invention is: a kind of slip casting method of disposal growing distance, the retired pipeline of heavy caliber, that retired pipeline is divided into pipeline to be cut and grouting pipe, pipeline to be cut and grouting pipe interval are arranged, ground is shifted out in pipeline excision to be cut, grouting material is injected by after grouting pipe shutoff, reside in underground, its construction sequence is as following:
A, determine setting, build pioneer road;
B, excavation operating pit;
The process of retired pipeline before C, slip casting;
D, slip casting preparation and slip casting;
Detect after E, slip casting;
F, local re-injection process.
Compared with prior art remarkable result of the present invention is: retired duct segments is cut by the present invention, segmenting slip casting, the internal memory sewage of retired pipeline and oil gas is made all to replace out, pipeline excision to be cut between two sections of grouting pipes is weighed up ground, and resides in underground by after the retired pipeline slip casting of long distance.Can construction cost be reduced on the one hand, also ensure that the safety of the retired pipeline residing in underground simultaneously, avoid the generation of bad accident.The present invention is reasonable in design, construction is simple, input is less, can ensure retired pipe safety ground, reside in underground muchly, protect environment, have significant social benefit.
Accompanying drawing explanation
Fig. 1 is Construction Principle schematic diagram of the present invention.
Fig. 2 is the mortar depositing construction schematic diagram of grouting pipe of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing in detail the present invention is described in detail, not limits the scope of the invention, the improvement that all uses mentality of designing of the present invention draws all belongs to protection category of the present invention.See Fig. 1 and Fig. 2, a kind of slip casting method of disposal growing distance, the retired pipeline of heavy caliber, that retired pipeline is divided into pipeline to be cut and grouting pipe, pipeline to be cut and grouting pipe interval are arranged, ground is shifted out in pipeline excision to be cut, inject grouting material by after grouting pipe shutoff, reside in underground, its construction sequence is as following:
A, determine setting, build pioneer road;
B, excavation operating pit;
The process of retired pipeline before C, slip casting;
D, slip casting prepare;
E, slip casting;
Detect after F, slip casting;
G, local re-injection process.
Determine setting, build pioneer road and comprise surveying setting-out and pipeline purging of removing obstacles, surveying setting-out is according to retired piping plan, profile, coordinate, locate with GPS, after determining retired pipeline location, spread albarium and rule, release conduit axis and operation band sideline; Pipeline purging of removing obstacles is farmland to construction area in operation band sideline, trees, orchard, ground and underground obstacle etc., confirms to remove area and quantity, and registers.Unit in charge of construction should actively contact and coordinate with local relevant department, jointly carries out reconnaissance trip.Pioneer road should be smooth, has enough bearing strengths, can ensure the driving safety of construction machinery equipment.
Excavation operating pit is depth displacement according to retired pipeline, selects that retired pipeline low spot is slip casting point, high point a little digs pit operation for discharging water, and slip casting point and the pipeline distance between discharging water a little are set in
800between m-1700m, inject the mobility of grouting material and the power of grouting equipment and slip casting point and distance between discharging water a little is directly proportional.According to injecting the performance determination slip casting point of grouting material and grouting equipment and discharging water a little, first extremely stop apart from during retired pipeline end face 0.4-0.6m with mechanical equivalent of light excavation, found out the particular location of retired pipeline again by hand excavation, the anticorrosive coating peeling of retired pipeline is exposed retired pipeline body.
Before slip casting, the process of retired pipeline comprises boring, installs shutoff air bag, pipeline to be cut draws water, Pipe Cutting, grouting pipe sealing head, above-mentioned operation is carried out successively.
Boring is included in slip casting point and bores injected hole and bore a dewatering orifice discharging water
,retired pipeline, after anticorrosive coating peeling exposes body, and can discharge water and a little get out two injected holes and two dewatering orifices respectively at the slip casting point of retired pipeline, and the distance between two injected holes and two dewatering orifices is set between 6m-8m; Reserve the body of 0.8m-1.2m in the inner side of two injected holes and two dewatering orifices, all the other bodys between two injected holes and two dewatering orifices are pipeline to be cut, and the pipeline between two adjacent injected holes and dewatering orifice is grouting pipe; During boring, weld slip casting pipe nipple 3 and connect slip casting gate 2 and drilling machine successively at injected hole place, discharging water in the welding of dewatering orifice place, also connection outlet gate 5 and drilling machine are the boring of retired pipeline to tee piece 6 successively; After boring, on dewatering orifice and injected hole, indwelling discharges water tee piece 6 and outlet gate 5 and slip casting pipe nipple 3 and slip casting gate 2 respectively, to discharge water and slip casting uses for follow-up.Special messenger will be had after retired pipeline tapping to carry out the detection of combustible medium at any time.
It is place shutoff air bag 9 in pipeline outside two injected holes and two dewatering orifices and inflate for shutoff air bag 9 that pipeline to be cut draws water; Then self priming pump 10 is put into respectively from dewatering orifice and injected hole, use self priming pump 10 to pump by the to be cut ducted sewage of shutoff air bag 9 shutoff.
Pipe Cutting is taken out from dewatering orifice and injected hole by self priming pump 10, uses pipe cutting machine excise and shift out ground to the pipeline to be cut after drawing water.
Grouting pipe sealing head puts into from the injected hole of grouting pipe the polyurethane that positioner is housed to push away water polo 4, in the injected hole of grouting pipe and the outside body of dewatering orifice, build butter wall 8 by laying bricks or stones, and body outside butter wall 8 welds end socket 7.
Slip casting prepares to comprise setting and pushes away water polo acceptance point, and select the transport of agitator position and grouting material, taken out by the shutoff air bag 9 in grouting pipe, in front, dewatering orifice, the setting of 50m place pushes away water polo signal receiver 11; Grouting material is injected from injected hole by grouting pump 1, make grouting material promotion polyurethane push away water polo 4 to move to dewatering orifice, sewage remaining in grouting pipe is passed from injected hole to dewatering orifice and on the tee piece 6 that discharges water of dewatering orifice indwelling connecting hose, sewage is put unified process after storing to storage tank.Grouting material agitator is preferably selected near grouting pipe centre position, adopts modified MH-09R automatic batching system wholly computer controlled batching, can the match ratio of accurate controlled grouting material, the stability of guarantee slurry.The grouting material transport vehicle loading time is 5-6min, and discharge time is 5-6min, and carrying capacity is 8m3/ train number, calculate the haulage vehicle needing to drop into, situ configuration steel grouting material deposit pond, ensures the ample supply of grouting material during slip casting, improves the work efficiency of mortar depositing construction.Along with the continuous injection of grouting material, residue sewage is all pushed into dewatering orifice place and is released from dewatering orifice.Because injected hole is lower than dewatering orifice, be conducive to the raising that grouting material fills degree of filling, push away the promotion of water polo 4 at polyurethane under, sewage can be discharged completely, up hill and dale from pipeline; If the water polo signal receiver 11 that pushes away of front, dewatering orifice 50m receives polyurethane and pushes away water polo 4, downshift process to be done to grouting pump 1,1 grade is reduced to step by step from top grade, once there are slurries in the gutter of grouting pump 1, first grouting pump 1 is closed, then the gutter be connected with the tee piece 6 that discharges water is closed, again to grouting pipe pressure release after the initial set of 24 hours post-grouting material.
Detecting after slip casting is carry out after slip casting completes 48h, can start the detection of slip casting result, detect one by one to grouting pipe in the complete final set of grouting material after starting to produce intensity; The test point place that grouting pipe is selected gets out detect aperture, and service precision is the height of the retired tube cavity of vernier caliper measurement of 0.02mm, calculates the packing density of grouting material; If solid filler >=95%, packing density reaches requirement; If solid filler < 95%, local re-injection process need be carried out.
During the re-injection process of local, the end socket of grouting pipe two ends welding need be removed, in detect aperture, place refills grouting material, grouting material is poured into pipe ends by detect aperture, from pipe ends draining, till cannot injecting grouting material, through process of the present invention, retired pipeline can reside in underground safely, muchly.
Claims (10)
1. the slip casting method of disposal of a long distance, the retired pipeline of heavy caliber, that retired pipeline is divided into pipeline to be cut and grouting pipe, pipeline to be cut and grouting pipe interval are arranged, ground is shifted out in pipeline excision to be cut, grouting material is injected by after grouting pipe shutoff, reside in underground, its construction sequence is as following:
A, determine setting, build pioneer road;
B, excavation operating pit;
The process of retired pipeline before C, slip casting;
D, slip casting preparation and slip casting;
Detect after E, slip casting;
F, local re-injection process.
2. as claimed in claim 1 a kind of grow distance, the retired pipeline of heavy caliber slip casting method of disposal, described excavation operating pit is the depth displacement according to retired pipeline, select that retired pipeline low spot is slip casting point, high point a little digs pit operation for discharging water, slip casting point and the pipeline distance between discharging water a little are set between 800m-1700m, inject the mobility of grouting material and the power of grouting equipment and slip casting point and distance between discharging water a little is directly proportional.
3. as claimed in claim 1 a kind of grow distance, the retired pipeline of heavy caliber slip casting method of disposal, before described slip casting, the process of retired pipeline comprises boring, installs shutoff air bag, pipeline to be cut draws water, Pipe Cutting, grouting pipe sealing head, above-mentioned operation is carried out successively.
4. a kind of slip casting method of disposal growing distance, the retired pipeline of heavy caliber as claimed in claim 3, described boring is included in slip casting point and bores injected hole and bore a dewatering orifice discharging water
,retired pipeline is after anticorrosive coating peeling exposes body, two injected holes and two dewatering orifices a little can be got out respectively with discharging water at the slip casting point of retired pipeline, distance between two injected holes and two dewatering orifices is set between 6m-8m, the body of 0.8m-1.2m is reserved in the inner side of two injected holes and two dewatering orifices, all the other bodys between two injected holes and two dewatering orifices are pipeline to be cut, and the pipeline between two adjacent injected holes and dewatering orifice is grouting pipe; During boring, weld slip casting pipe nipple and connect slip casting gate and drilling machine successively at injected hole place, discharging water in the welding of dewatering orifice place, also connection outlet gate and drilling machine are the boring of retired pipeline to tee piece successively; After boring, on dewatering orifice and injected hole, indwelling discharges water tee piece and outlet gate and slip casting pipe nipple and slip casting gate respectively
.
5. a kind of slip casting method of disposal growing distance, the retired pipeline of heavy caliber as claimed in claim 3, it is place shutoff air bag in pipeline outside two injected holes and two dewatering orifices and be shutoff airbag aeration that described pipeline to be cut draws water; Then self priming pump is put into respectively from dewatering orifice and injected hole, use self priming pump to pump by the to be cut ducted sewage of shutoff air bag shutoff.
6. a kind of slip casting method of disposal growing distance, the retired pipeline of heavy caliber as claimed in claim 3, described Pipe Cutting is taken out from dewatering orifice and injected hole by self priming pump, uses pipe cutting machine excise and shift out ground to the pipeline to be cut after drawing water.
7. a kind of slip casting method of disposal growing distance, the retired pipeline of heavy caliber as claimed in claim 3, described grouting pipe sealing head puts into from the injected hole of grouting pipe the polyurethane that positioner is housed to push away water polo, in the injected hole of grouting pipe and the outside body of dewatering orifice, build butter wall by laying bricks or stones, and body outside butter wall welds end socket.
8. a kind of slip casting method of disposal growing distance, the retired pipeline of heavy caliber as claimed in claim 1, described slip casting preparation and slip casting comprise setting and push away water polo acceptance point, taken out by shutoff air bag in grouting pipe, in front, dewatering orifice, the setting of 50m place pushes away water polo signal receiver; Grouting material is injected from injected hole by grouting pump, make grouting material promotion polyurethane push away water polo to move to dewatering orifice, sewage remaining in grouting pipe is passed from injected hole to dewatering orifice and on the tee piece that discharges water of dewatering orifice indwelling connecting hose, sewage is put unified process after storing to storage tank; If the water polo signal receiver that pushes away of front, dewatering orifice 50m receives polyurethane and pushes away water polo, downshift process to be done to grouting pump, 1 grade is reduced to step by step from top grade, once there are slurries in the gutter of grouting pump, first grouting pump is closed, then the gutter be connected with the tee piece that discharges water is closed, again to grouting pipe pressure release after the initial set of 24 hours post-grouting material.
9. a kind of slip casting method of disposal growing distance, the retired pipeline of heavy caliber as claimed in claim 1, detecting after described slip casting is carry out after slip casting completes 48h, the detection of slip casting result can be started after starting to produce intensity in the complete final set of grouting material, one by one grouting pipe is detected; The test point place that grouting pipe is selected gets out detect aperture, and service precision is the height of the retired tube cavity of vernier caliper measurement of 0.02mm, calculates the packing density of grouting material; If solid filler >=95%, packing density reaches requirement; If solid filler < 95%, local re-injection process need be carried out.
10. a kind of slip casting method of disposal growing distance, the retired pipeline of heavy caliber as claimed in claim 9, during described local re-injection process, the end socket of grouting pipe two ends welding need be removed, in detect aperture, place refills grouting material, grouting material is poured into pipe ends by detect aperture, from pipe ends draining, till cannot injecting grouting material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510563002.6A CN105178323A (en) | 2015-09-08 | 2015-09-08 | Grouting disposal method for long-distance large-caliber retired pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510563002.6A CN105178323A (en) | 2015-09-08 | 2015-09-08 | Grouting disposal method for long-distance large-caliber retired pipeline |
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| Publication Number | Publication Date |
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| CN105178323A true CN105178323A (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510563002.6A Pending CN105178323A (en) | 2015-09-08 | 2015-09-08 | Grouting disposal method for long-distance large-caliber retired pipeline |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109201696A (en) * | 2018-09-30 | 2019-01-15 | 天津市瑞德赛恩水业有限公司 | A kind of method for blocking of discarded crude oil pipeline |
| CN110560467A (en) * | 2019-10-12 | 2019-12-13 | 中石化第十建设有限公司 | Harmless treatment method for waste and old pipelines |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201940402U (en) * | 2010-12-17 | 2011-08-24 | 沈阳仪表科学研究院 | Splitting type electronic tube cleaner |
| CN203044448U (en) * | 2012-08-08 | 2013-07-10 | 中国石油天然气股份有限公司 | Reducing pipe cleaner |
| CN104452793A (en) * | 2015-01-09 | 2015-03-25 | 郑州市市政工程总公司 | Construction technology for foam concrete treatment of abandoned sewage pipeline at urban overpass foundation |
| CN104631462A (en) * | 2014-12-18 | 2015-05-20 | 中国石油天然气股份有限公司 | Grouting filling device and method for waste oil and gas pipelines |
-
2015
- 2015-09-08 CN CN201510563002.6A patent/CN105178323A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201940402U (en) * | 2010-12-17 | 2011-08-24 | 沈阳仪表科学研究院 | Splitting type electronic tube cleaner |
| CN203044448U (en) * | 2012-08-08 | 2013-07-10 | 中国石油天然气股份有限公司 | Reducing pipe cleaner |
| CN104631462A (en) * | 2014-12-18 | 2015-05-20 | 中国石油天然气股份有限公司 | Grouting filling device and method for waste oil and gas pipelines |
| CN104452793A (en) * | 2015-01-09 | 2015-03-25 | 郑州市市政工程总公司 | Construction technology for foam concrete treatment of abandoned sewage pipeline at urban overpass foundation |
Non-Patent Citations (1)
| Title |
|---|
| 唐群艳: "地下长距离废弃管道充填施工设计", 《探矿工程》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109201696A (en) * | 2018-09-30 | 2019-01-15 | 天津市瑞德赛恩水业有限公司 | A kind of method for blocking of discarded crude oil pipeline |
| CN109201696B (en) * | 2018-09-30 | 2021-09-14 | 天津市瑞德赛恩水业有限公司 | Method for plugging waste crude oil pipeline |
| CN110560467A (en) * | 2019-10-12 | 2019-12-13 | 中石化第十建设有限公司 | Harmless treatment method for waste and old pipelines |
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Effective date of registration: 20180201 Address after: 100101 Chaoyang District, Jilin City, Beijing mouth road, No. 9 Applicant after: SINOPEC OILFIELD SERVICE CORPORATION Applicant after: Triumph construction engineering corporation, Ltd of China Petrochemical Industry Address before: 257000 No. two, 755 North Road, Dongying District, Shandong, Dongying Applicant before: Triumph construction engineering corporation, Ltd of China Petrochemical Industry |
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Application publication date: 20151223 |