CN105080916A - Water sweeping and drying pipe cleaner train of natural gas pipeline - Google Patents
Water sweeping and drying pipe cleaner train of natural gas pipeline Download PDFInfo
- Publication number
- CN105080916A CN105080916A CN201510457285.6A CN201510457285A CN105080916A CN 105080916 A CN105080916 A CN 105080916A CN 201510457285 A CN201510457285 A CN 201510457285A CN 105080916 A CN105080916 A CN 105080916A
- Authority
- CN
- China
- Prior art keywords
- slug
- natural gas
- water
- drying
- gas line
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
- B08B9/055—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
- B08B9/055—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
- B08B9/0553—Cylindrically shaped pigs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2209/00—Details of machines or methods for cleaning hollow articles
- B08B2209/02—Details of apparatuses or methods for cleaning pipes or tubes
- B08B2209/027—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces
- B08B2209/04—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces using cleaning devices introduced into and moved along the pipes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2209/00—Details of machines or methods for cleaning hollow articles
- B08B2209/02—Details of apparatuses or methods for cleaning pipes or tubes
- B08B2209/027—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces
- B08B2209/04—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces using cleaning devices introduced into and moved along the pipes
- B08B2209/053—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces using cleaning devices introduced into and moved along the pipes being moved along the pipes by a fluid, e.g. by fluid pressure or by suction
- B08B2209/055—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces using cleaning devices introduced into and moved along the pipes being moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
Abstract
The invention relates to natural gas conveying pipeline construction equipment, in particular to a water sweeping and drying pipe cleaner train of a natural gas pipeline, and is suitable for various natural gas conveying pipelines. The water sweeping and drying pipe cleaner train of the natural gas pipeline is suitable for sweeping the natural gas pipeline, comprises multiple pipe cleaners, and further comprises a fresh water section plug, a water base gel section plug, a chemical drying agent section plug and a drying gas section plug, wherein the fresh water section plug, the water base gel section plug, the chemical drying agent section plug and the drying gas section plug are alternately arranged with the pipe cleaners in sequence. The pipe cleaner train, provided by the invention, is suitable for the water sweeping and the drying of long-distance and large-caliber natural gas conveying pipelines at the deepwater seabed.
Description
Technical field
The present invention relates to a kind of natural-gas transfer pipeline construction equipment, be specifically related to a kind of natural gas line and sweep water drying pig train, be applicable to various natural-gas transfer pipeline.
Background technology
After natural-gas transfer pipeline carries out the water pressure test, need to carry out sweeping water, drying and filling every operations such as nitrogen inerting.Natural gas main component is methane (CH4), and under high pressure low temperature state, methane is easy to combine with water form gas hydrates (CH4H2O), and be commonly called as combustible ice, blocking pipe, flowmeter, valve etc., affecting pipeline normally carries; In pipeline residual moisture easily and in natural gas sulfur dioxide combine, form acid cure hydrogen solution and corrode tube wall; In addition, free state water residual in pipeline accumulates in low-lying place, can reduce pipeline overflow section and amass, increase discharge pressure, reduce feed flow.Carrying out drying purpose to natural gas line is take residual moisture in pipeline out of pipeline, prevents pipeline from introducing the generation of the above harm in natural gas operation process and conduit running process.
At present, after natural-gas transfer pipeline carries out the water pressure test, sweep water, drying process and separately carry out.For long distance, heavy caliber, deep-water subsea natural-gas transfer pipeline, separately carry out sweeping water, drying, pipeline needs repeatedly to lead to ball, the resources such as the engineering time is long, waste large number quipments fuel oil, in addition, increase along with logical ball number of times, wiper wearing and tearing blowby, card sportsmanship danger also increase greatly.Submarine pipeline constantly must not get ball situation by pipe once there is card ball, and cost will be very high.
Summary of the invention
The object of the invention is to provide the high-quality sea-bottom natural gas that can make of a kind of Sciences Economics, high efficiency to sweep water, drying integrated sweep water drying pig train for problems of the prior art.
Technical scheme of the present invention is:
A kind of natural gas line sweeps water drying pig train, be applicable to the cleaning of natural gas line, comprise many pieces of wipers, also include fresh water slug, aqueous gel slug, chemical drier slug, dry gas slug composition, described fresh water slug, aqueous gel slug, chemical drier slug, dry gas slug are arranged alternately successively with wiper respectively.
Concrete, described wiper is two-way straight-plate-type.
Concrete, the gas that dry gas slug uses is nitrogen.
Concrete, the drier that described chemical drier slug uses is triethylene glycol.
Concrete, the quantity of described same media slug can adjust according to actual needs.
Natural gas line provided by the present invention is swept each slug that water drying pig train comprises and is had difference in functionality respectively, and realize once logical ball and reach entry, wherein the effect of fresh water slug is to rinse the salinity on residual tube wall in pressure testing seawater; Aqueous gel slug plays increases pigging sealing function, strengthens and sweeps water effect, increases lubrication, reduces tube wall to the wearing and tearing of wiper ball plate, improves wiper sealing and travel distance; Triethylene glycol slug will replace the moisture film remained on inner-walls of duct, and absorption of residual stays moisture in pipe, makes residual liquid film on inner-walls of duct become moisture lower than the high-purity triethylene glycol film of 15%, in pipe, forms gas hydrates; Drying nitrogen slug takes the liquid remained on tube wall further out of, strengthens drying effect.Wiper train provided by the invention be suitable for long distance, heavy caliber, deep-water subsea natural-gas transfer pipeline sweep water, drying.
Accompanying drawing explanation
Fig. 1 be detailed description of the invention structural representation.
1 wiper 1 fresh water slug 23 wiper 24 aqueous gel slug 5 wiper three
6 chemical drier slug 7 wiper 48 dry gas slug 9 wipers five
10 natural gas lines.
Detailed description of the invention
A kind of natural gas line sweeps water drying pig train, be applicable to the cleaning of natural gas line, comprise five pieces of two-way straight-plate-type wipers, also include fresh water slug, aqueous gel slug, triethylene glycol slug, drying nitrogen slug composition, described fresh water slug, aqueous gel slug, triethylene glycol slug, drying nitrogen slug are arranged alternately successively with wiper respectively, and the quantity of described same media slug can adjust according to actual needs.The natural gas line formed sweeps the composition structure of water drying pig train as shown in Figure 1, sets gradually as wiper one, fresh water slug, wiper two, aqueous gel slug, wiper three, triethylene glycol slug, wiper four, drying nitrogen slug, wiper five.
The each several part material natural gas line of composition being swept water drying pig train loads in pipeline according to design sequence and quantity; Utilize compression drying gas push to sweep water drying pig train and run to pipe end from natural gas line head end, water after pressure testing in natural gas line is scanned out, salt residues and moisture replace to high concentration triethylene glycol film in inside pipe wall moisture film, sweep after water drying completes and be full of dry gas nitrogen in submarine pipeline, by sweeping water after the seafloor gas seepage water pressure test, drying process is combined and once completes, and greatly saved engineering time and cost.
Claims (5)
1. a natural gas line sweeps water drying pig train, be applicable to the cleaning of natural gas line, comprise many pieces of wipers, it is characterized in that, also include fresh water slug, aqueous gel slug, chemical drier slug, dry gas slug composition, described fresh water slug, aqueous gel slug, chemical drier slug, dry gas slug are arranged alternately successively with wiper respectively.
2. a kind of natural gas line sweeps water drying pig train according to claim 1, it is characterized in that, described wiper is two-way straight-plate-type.
3. a kind of natural gas line sweeps water drying pig train according to claim 1, it is characterized in that, the gas that dry gas slug uses is nitrogen.
4. a kind of natural gas line sweeps water drying pig train according to claim 1, it is characterized in that, the drier that described chemical drier slug uses is triethylene glycol.
5. a kind of natural gas line sweeps water drying pig train according to claim 1, it is characterized in that, the quantity of described same media slug can adjust according to actual needs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510457285.6A CN105080916A (en) | 2015-07-30 | 2015-07-30 | Water sweeping and drying pipe cleaner train of natural gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510457285.6A CN105080916A (en) | 2015-07-30 | 2015-07-30 | Water sweeping and drying pipe cleaner train of natural gas pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105080916A true CN105080916A (en) | 2015-11-25 |
Family
ID=54562772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510457285.6A Pending CN105080916A (en) | 2015-07-30 | 2015-07-30 | Water sweeping and drying pipe cleaner train of natural gas pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105080916A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107433273A (en) * | 2017-08-08 | 2017-12-05 | 中石化河南油建工程有限公司 | A kind of discarded crude oil pipeline method for innocent treatment |
| CN109465255A (en) * | 2018-10-23 | 2019-03-15 | 高小龙 | A kind of dredger of dredging gas hydrates blocking natural gas runner |
| CN114147011A (en) * | 2020-09-04 | 2022-03-08 | 中国石油天然气股份有限公司 | Blockage relieving method for salt crystallization blockage of natural gas pipeline |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080216876A1 (en) * | 2007-03-08 | 2008-09-11 | The Coca-Cola Company | Pipe Clearing Systems |
| CN202730948U (en) * | 2012-07-20 | 2013-02-13 | 河南中拓石油工程技术股份有限公司 | Three-dimensional dredging device for water drainage pipe |
| CN103721980A (en) * | 2013-12-17 | 2014-04-16 | 朱伟 | Small-diameter pipeline inner wall cleaning device and cleaning method thereof |
| CN104259157A (en) * | 2014-08-14 | 2015-01-07 | 中国石油天然气股份有限公司 | Compound tube cleaner with gel and method for manufacturing crosslinked polypropylene amide aqueous gel |
| CN104307822A (en) * | 2014-08-19 | 2015-01-28 | 中国化学工程第三建设有限公司 | Pollution-free, high-efficiency and long-distance pipe installing and cleaning method |
| CN104353649A (en) * | 2014-11-07 | 2015-02-18 | 安徽池州瑞强塑业有限公司 | Device for cleaning inner wall of pipe body |
| CN104525536A (en) * | 2015-01-06 | 2015-04-22 | 天津市瑞德赛恩新材料开发有限公司 | Subsea pipeline cleaning method with micro-jet shock wave tube cleaners and cleaning train combined |
-
2015
- 2015-07-30 CN CN201510457285.6A patent/CN105080916A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080216876A1 (en) * | 2007-03-08 | 2008-09-11 | The Coca-Cola Company | Pipe Clearing Systems |
| CN202730948U (en) * | 2012-07-20 | 2013-02-13 | 河南中拓石油工程技术股份有限公司 | Three-dimensional dredging device for water drainage pipe |
| CN103721980A (en) * | 2013-12-17 | 2014-04-16 | 朱伟 | Small-diameter pipeline inner wall cleaning device and cleaning method thereof |
| CN104259157A (en) * | 2014-08-14 | 2015-01-07 | 中国石油天然气股份有限公司 | Compound tube cleaner with gel and method for manufacturing crosslinked polypropylene amide aqueous gel |
| CN104307822A (en) * | 2014-08-19 | 2015-01-28 | 中国化学工程第三建设有限公司 | Pollution-free, high-efficiency and long-distance pipe installing and cleaning method |
| CN104353649A (en) * | 2014-11-07 | 2015-02-18 | 安徽池州瑞强塑业有限公司 | Device for cleaning inner wall of pipe body |
| CN104525536A (en) * | 2015-01-06 | 2015-04-22 | 天津市瑞德赛恩新材料开发有限公司 | Subsea pipeline cleaning method with micro-jet shock wave tube cleaners and cleaning train combined |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107433273A (en) * | 2017-08-08 | 2017-12-05 | 中石化河南油建工程有限公司 | A kind of discarded crude oil pipeline method for innocent treatment |
| CN107433273B (en) * | 2017-08-08 | 2020-06-12 | 中石化河南油建工程有限公司 | Harmless treatment method for waste crude oil pipeline |
| CN109465255A (en) * | 2018-10-23 | 2019-03-15 | 高小龙 | A kind of dredger of dredging gas hydrates blocking natural gas runner |
| CN114147011A (en) * | 2020-09-04 | 2022-03-08 | 中国石油天然气股份有限公司 | Blockage relieving method for salt crystallization blockage of natural gas pipeline |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151125 |
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| WD01 | Invention patent application deemed withdrawn after publication |