CN103629475A - Removing method of natural-gas hydrate in natural-gas pipeline - Google Patents
Removing method of natural-gas hydrate in natural-gas pipeline Download PDFInfo
- Publication number
- CN103629475A CN103629475A CN201310643996.3A CN201310643996A CN103629475A CN 103629475 A CN103629475 A CN 103629475A CN 201310643996 A CN201310643996 A CN 201310643996A CN 103629475 A CN103629475 A CN 103629475A
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- China
- Prior art keywords
- natural
- pipeline
- gas
- carbon nano
- tube film
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/24—Preventing accumulation of dirt or other matter in the pipes, e.g. by traps, by strainers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a removing method of natural-gas hydrate in a natural-gas pipeline. In the removing method, a carbon nano tube film with a columnar structure array is firstly prepared. The removing method comprises the following steps: firstly selecting a base piece which is a substance adhered on the carbon nano tube film with the columnar array and can be a metal piece, an aluminium piece or a ceramic piece and the like, then putting the treated base piece into a quartz tube, using iron phthalocyanine (FeC32N8H16, ACROS) as a carbon source and a catalyst, in the flowing atmosphere with argon and hydrogen (volume ratio is 1:1), cracking for 15 minutes at the temperature 900 DEG C by using a high-temperature tube furnace, then obtaining the carbon nano tube film with the columnar array on the base piece, and making the carbon nano tube film with the columnar array into a nano super-hydrophobic material. When the nano super-hydrophobic material is coated on inner holes on the inner wall and a valve of the pipeline, the ice-shaped and snow-shaped natural-gas hydrate can be prevented from being formed, so that the smoothness of a wellhole and the pipeline is ensured.
Description
Affiliated technical field
The present invention relates to a kind of method of eliminating gas hydrates in natural gas line.
Background technique
At present, in the process in producing oil gas field, variation due to temperature and pressure, usually in pit shaft or conveyance conduit, form the gas hydrates of snow shape, this gas hydrates can stop up pit shaft and pipeline, have a strong impact on the normal operation of gas production and gas transmission work, strengthening the cost of manufacturing enterprise.
Summary of the invention
For overcoming in existing situation, in the process in producing oil gas field, variation due to temperature and pressure, usually in pit shaft or conveyance conduit, form the gas hydrates of snow shape, this gas hydrates can stop up pit shaft and pipeline, having a strong impact on the normal operation of gas production and gas transmission work, strengthened the deficiency of the cost of manufacturing enterprise, the invention provides a kind of method of eliminating gas hydrates in natural gas line, it can stop gas hydrates to be attached on pipeline, prevent that gas hydrates from stopping up pit shaft and pipeline, reduced the cost of production of enterprise.
The technical solution adopted for the present invention to solve the technical problems is: first produce column structure array carbon nano tube film, method is, first select substrate, substrate is the material that columnar arrays carbon nano-tube film adheres to, it can be tinsel, aluminium flake, or ceramic plate etc., again the substrate after processing is put into quartz tube, with FePC (FeC32N8H16, ACROS) as carbon source and catalyzer, in the mobile atmosphere of argon gas and hydrogen (volume ratio is 1:1), with high temperature process furnances cracking 15min at 900 ℃, can on substrate, obtain columnar arrays carbon nano-tube film, with columnar arrays carbon nano-tube film, make nano superhydrophobic material again, this nano superhydrophobic material is coated in to the place that easily forms gas hydrates in pipeline with special process, just can stop the formation of the gas hydrates of ice and snow shape, guarantee the unimpeded of pit shaft and pipeline.
The invention has the beneficial effects as follows, can stop gas hydrates to stop up pit shaft and pipeline, reduced the cost of production of enterprise.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is natural gas line organigram.
Fig. 2 is sectional view and the nano superhydrophobic material coating key plan of Fig. 1.
1. natural gas lines in figure, 2. valve endoporus, 3. valve seat, 4. handle, 5. inner-walls of duct nano coating, 6. valve endoporus nano coating.
Embodiment
In Fig. 1, natural gas line has valve on (1), has handle (4) and valve seat (3) on valve, and the center of valve is valve endoporus (2).
In Fig. 2, on natural gas line (1), there is valve endoporus (2), first produce column structure array carbon nano tube film, method is, first select substrate, substrate is the material that columnar arrays carbon nano-tube film adheres to, it can be tinsel, aluminium flake, or ceramic plate etc., again the substrate after processing is put into quartz tube, with FePC (FeC32N8H16, ACROS) as carbon source and catalyzer, in the mobile atmosphere of argon gas and hydrogen (volume ratio is 1:1), with high temperature process furnances cracking 15min at 900 ℃, can on substrate, obtain columnar arrays carbon nano-tube film, with columnar arrays carbon nano-tube film, make nano superhydrophobic material again, this nano superhydrophobic material is coated on the inwall and valve endoporus (2) of natural gas line (1) with special process, so just formed inner-walls of duct nano coating (5) and valve endoporus nano coating (6), owing to having applied nano superhydrophobic material, just can stop the formation of the gas hydrates of ice and snow shape, guarantee the unimpeded of pit shaft and pipeline.
Claims (1)
1. a method, is characterized in that: the working life that can extend pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310643996.3A CN103629475A (en) | 2013-11-27 | 2013-11-27 | Removing method of natural-gas hydrate in natural-gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310643996.3A CN103629475A (en) | 2013-11-27 | 2013-11-27 | Removing method of natural-gas hydrate in natural-gas pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103629475A true CN103629475A (en) | 2014-03-12 |
Family
ID=50210801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310643996.3A Pending CN103629475A (en) | 2013-11-27 | 2013-11-27 | Removing method of natural-gas hydrate in natural-gas pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103629475A (en) |
-
2013
- 2013-11-27 CN CN201310643996.3A patent/CN103629475A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140312 |