EP0250162A3 - Displacement of free fluid accumulations in pipelines - Google Patents
Displacement of free fluid accumulations in pipelines Download PDFInfo
- Publication number
- EP0250162A3 EP0250162A3 EP19870305168 EP87305168A EP0250162A3 EP 0250162 A3 EP0250162 A3 EP 0250162A3 EP 19870305168 EP19870305168 EP 19870305168 EP 87305168 A EP87305168 A EP 87305168A EP 0250162 A3 EP0250162 A3 EP 0250162A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- pipeline
- foam
- fluid
- injecting
- displace
- 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- Withdrawn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
- 239000012530 fluid Substances 0.000 title abstract 9
- 230000035508 accumulation Effects 0.000 title 1
- 238000009825 accumulation Methods 0.000 title 1
- 238000006073 displacement reaction Methods 0.000 title 1
- 239000006260 foam Substances 0.000 abstract 10
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 238000005187 foaming Methods 0.000 abstract 1
- 239000004088 foaming agent Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/14—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using liquids and gases, e.g. foams
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Pipeline Systems (AREA)
- Sampling And Sample Adjustment (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
a method of removing at least a substantial
proportion of fluid left in a generally horizontal
section of a pipeline, by injecting into the pipeline
a pressurized, high expansion foam and advancing the
foam through the pipeline section in contact with
a layer of the fluid left therein to displace the
layer towards a remote end of the pipeline by frictional
pick-up of the layer by the foam and to effect mass
transfer of a foaming agent from the foam to the fluid,
followed by passing into the pipeline a pressurized
gas to create turbulence in fluid left in the pipeline
causing foaming of the fluid and to displace a substantial
proportion of the foam left within the pipeline.
At least some of the bulk of the fluid in the pipeline
may be displaced by injecting the foam so as to establish
a transverse foam/fluid interface which is advanced
through the pipeline at or above a minimum velocity
required to maintain said interface leaving a residual
amount of fluid which is treated as aforesaid. The
method may include the further subsequent step of
injecting into the pipeline a pressurized foam containing
a treatment agent to displace residual foam left in
the pipeline, and then allowing the foam to decompose
in the pipeline to deposit the treatment agent within
the pipeline either on the pipewall or in solution
with any liquids remaining therein.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB868615077A GB8615077D0 (en) | 1986-06-20 | 1986-06-20 | Removal of free fluid accumulations in pipelines |
| GB8615077 | 1986-06-20 | ||
| GB8622364A GB2191841B (en) | 1986-06-20 | 1986-09-17 | Displacement of free fluid accumulations in pipelines |
| GB8622364 | 1986-09-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0250162A2 EP0250162A2 (en) | 1987-12-23 |
| EP0250162A3 true EP0250162A3 (en) | 1991-02-20 |
Family
ID=26290941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19870305168 Withdrawn EP0250162A3 (en) | 1986-06-20 | 1987-06-11 | Displacement of free fluid accumulations in pipelines |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0250162A3 (en) |
| CN (1) | CN87104321A (en) |
| AU (1) | AU585453B2 (en) |
| BR (1) | BR8703089A (en) |
| DK (1) | DK315687A (en) |
| NO (1) | NO872553L (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2794844B1 (en) * | 1999-06-08 | 2001-08-03 | Air Liquide | METHOD AND DEVICE FOR GASTING A CORROSIVE GAS DISTRIBUTION LINE |
| CN102698995B (en) * | 2012-06-28 | 2014-04-30 | 唐山三友化工股份有限公司 | Method for washing carbonization tower water tank by utilizing cleaning gas |
| GB201414733D0 (en) | 2014-08-19 | 2014-10-01 | Statoil Petroleum As | Wellhead assembly |
| US20210340469A1 (en) * | 2020-04-30 | 2021-11-04 | Ashley Zachariah | Method to remove explosive and toxic gases and clean metal surfaces in hydrocarbon equipment |
| CN114575809B (en) * | 2022-03-28 | 2022-11-25 | 普斐特油气工程(江苏)股份有限公司 | Intelligent foam discharging system device for oil gas well mouth |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3773110A (en) * | 1972-08-14 | 1973-11-20 | Continental Oil Co | Method of removing liquids and small solids from well bores |
| US3819519A (en) * | 1968-11-27 | 1974-06-25 | Chevron Res | Foam circulation fluids |
| GB2023270A (en) * | 1978-06-13 | 1979-12-28 | Vickers Ltd | Drying cavities |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4133773A (en) * | 1977-07-28 | 1979-01-09 | The Dow Chemical Company | Apparatus for making foamed cleaning solutions and method of operation |
| US4419141A (en) * | 1982-04-05 | 1983-12-06 | Weyerhaeuser Company | Cleaning labyrinthine system with foamed solvent and pulsed gas |
-
1987
- 1987-06-11 EP EP19870305168 patent/EP0250162A3/en not_active Withdrawn
- 1987-06-16 AU AU74298/87A patent/AU585453B2/en not_active Ceased
- 1987-06-18 NO NO872553A patent/NO872553L/en unknown
- 1987-06-19 BR BR8703089A patent/BR8703089A/en not_active IP Right Cessation
- 1987-06-19 DK DK315687A patent/DK315687A/en unknown
- 1987-06-20 CN CN198787104321A patent/CN87104321A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3819519A (en) * | 1968-11-27 | 1974-06-25 | Chevron Res | Foam circulation fluids |
| US3773110A (en) * | 1972-08-14 | 1973-11-20 | Continental Oil Co | Method of removing liquids and small solids from well bores |
| GB2023270A (en) * | 1978-06-13 | 1979-12-28 | Vickers Ltd | Drying cavities |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0250162A2 (en) | 1987-12-23 |
| NO872553L (en) | 1987-12-21 |
| BR8703089A (en) | 1988-03-08 |
| DK315687D0 (en) | 1987-06-19 |
| DK315687A (en) | 1987-12-21 |
| CN87104321A (en) | 1988-03-23 |
| NO872553D0 (en) | 1987-06-18 |
| AU585453B2 (en) | 1989-06-15 |
| AU7429887A (en) | 1987-12-24 |
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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 |
Kind code of ref document: A2 Designated state(s): DE ES FR GB IT NL |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): DE ES FR GB IT NL |
|
| 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: 19910821 |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: FULLER, JOSEPH DAWSON Inventor name: EVETT, ALAN JOHN |