EP0105593A1 - Dispersion de bouchons de liquide dans les conduites de gaz - Google Patents
Dispersion de bouchons de liquide dans les conduites de gaz Download PDFInfo
- Publication number
- EP0105593A1 EP0105593A1 EP83304911A EP83304911A EP0105593A1 EP 0105593 A1 EP0105593 A1 EP 0105593A1 EP 83304911 A EP83304911 A EP 83304911A EP 83304911 A EP83304911 A EP 83304911A EP 0105593 A1 EP0105593 A1 EP 0105593A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- pipeline
- emitting device
- liquid
- slugs
- 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.)
- Withdrawn
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/12—Arrangements for supervising or controlling working operations for injecting a composition into the line
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/232—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/314—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/14—Arrangements for supervising or controlling working operations for eliminating water
Definitions
- This invention relates to dispersing liquid slugs in gas pipelines in order to reduce the destructive effect on components in the pipeline.
- condensed gas and water form a liquid fraction which can, under certain conditions, form slugs that are carried along by the gas at the velocity of the gas.
- the impact of such slugs can damage components in the pipeline, such as separators or valves as found at a compressor station.
- the present invention provides an apparatus for dispersing liquid slugs in a gas pipeline comprising a gas emitting device communicating with said pipeline, said device having a plurality of outlets for emitting gas, and means for connecting said chamber with a source of gas.
- the invention further provides a method of dispersing liquid slugs in a gas pipeline comprising introducing a gas into the liquid to form a gas-liquid mixture.
- a typical compressor station for a gas pipeline 1 includes a turbo-compressor 2, a separator 3 and a valve 4.
- a gas emitting device 5 is positioned upstream of the components to be protected, namely the valve 4 and separator 3. As shown, gas is supplied to the gas emitting device 5 from the turbo-compressor outlet by means of a suitable conduit 6.
- Figure 2 shows the gas emitting device 5 and the effect on liquid slugs in the pipeline 1.
- One slug 10 is shown approaching the gas emitting device 5 while another slug is being dispersed in region 11.
- the gas emitting device 5 comprises a porous chamber defining a plurality of outlets 7. Each outlet or pore 7 provides a nucleation site for a bubble in the liquid. The emitted bubbles break up the incompressible liquid slug to form a compressible gas-liquid mixture.
- the bubbles After formation, the bubbles begin to coalesce into large bubbles and flow will subsequently revert to separated gas and liquid, and again be suseptible to slugging.
- the pores In order to prolong the duration of compressible gas-liquid mixture mode of flow, the pores should be as small and numerous as practical.
- the outlet diameter should be less than 1% of the pipeline diameter.
- the distance the gas emitting device can be placed upstream of the components to be protected is limited. It appears that protection against slugging can be provided for a distance up to 60 pipeline diameters, but preferably the emitting device should be placed within 30 diameters of the component or components to be protected.
- the gas emitting device and outlets may take various forms.
- the emitting device may be formed of woven stainless steel wire mesh or grid, or sintered stainless steel. With such construction, the outlet or pore size can be made less than 50 pm.
- Figure 3 shows an alternate embodiment for the gas emitting device, in the form of a sparger.tube 15 provided with outlets 17 and supplied with gas through inlet 16.
- FIGS 4 and 5 illustrate another embodiment of the gas emitting device.
- Gas is introduced into the pipeline 20 through outlets 27 of a perforated section 25 of the pipeline.
- the perforated section 25 is enclosed by manifold 28 to which gas is supplied through inlet 26.
- gas may be supplied to the emitting device 5 on a continuous basis, for example, when the incidence of slugging is high, or only when a slug is approaching.
- a slug detector 12 is provided a suitable distance upstream.
- the detector 12 may take various forms such as a conductance probe, acoustic sensor or radio-frequency densitometer.
- the gas emitting device should have a length of at least five pipeline diameters.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
- Pipeline Systems (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA410730 | 1982-09-03 | ||
CA410730 | 1982-09-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0105593A1 true EP0105593A1 (fr) | 1984-04-18 |
Family
ID=4123525
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP83304911A Withdrawn EP0105593A1 (fr) | 1982-09-03 | 1983-08-25 | Dispersion de bouchons de liquide dans les conduites de gaz |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0105593A1 (fr) |
NO (1) | NO833013L (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0464797A1 (fr) * | 1990-07-05 | 1992-01-08 | Linde Aktiengesellschaft | Procédé et dispositif pour introduire du gaz dans un liquide |
US8047292B2 (en) * | 2004-12-06 | 2011-11-01 | Baker Hughes Incorporated | Method and apparatus for preventing slug flow in pipelines |
GB2500873A (en) * | 2012-03-22 | 2013-10-09 | Corac Energy Technologies Ltd | Pipeline compression system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2979389A (en) * | 1957-04-18 | 1961-04-11 | Socony Mobil Oil Co Inc | Apparatus for treating high pressure gas systems |
US3644107A (en) * | 1970-03-09 | 1972-02-22 | Phillips Petroleum Co | Method for preventing the formation of hydrates and ice |
FR2196446A1 (fr) * | 1972-08-18 | 1974-03-15 | Erdoelchemie Gmbh | |
GB2090642A (en) * | 1980-12-09 | 1982-07-14 | British Gas Corp | Removal of Condensed Gas from the Walls of Gas Pipelines |
-
1983
- 1983-08-22 NO NO833013A patent/NO833013L/no unknown
- 1983-08-25 EP EP83304911A patent/EP0105593A1/fr not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2979389A (en) * | 1957-04-18 | 1961-04-11 | Socony Mobil Oil Co Inc | Apparatus for treating high pressure gas systems |
US3644107A (en) * | 1970-03-09 | 1972-02-22 | Phillips Petroleum Co | Method for preventing the formation of hydrates and ice |
FR2196446A1 (fr) * | 1972-08-18 | 1974-03-15 | Erdoelchemie Gmbh | |
GB2090642A (en) * | 1980-12-09 | 1982-07-14 | British Gas Corp | Removal of Condensed Gas from the Walls of Gas Pipelines |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0464797A1 (fr) * | 1990-07-05 | 1992-01-08 | Linde Aktiengesellschaft | Procédé et dispositif pour introduire du gaz dans un liquide |
US8047292B2 (en) * | 2004-12-06 | 2011-11-01 | Baker Hughes Incorporated | Method and apparatus for preventing slug flow in pipelines |
GB2500873A (en) * | 2012-03-22 | 2013-10-09 | Corac Energy Technologies Ltd | Pipeline compression system |
Also Published As
Publication number | Publication date |
---|---|
NO833013L (no) | 1984-03-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): DE FR GB IT NL |
|
17P | Request for examination filed |
Effective date: 19840622 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19851008 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: GREGORY, GARRY A. Inventor name: NICHOLSON, MURRAY K. Inventor name: AZIZ, KHALID Inventor name: NICKERSON, JOHN R. |