EP0485585A1 - Unite de raclage automatisee. - Google Patents
Unite de raclage automatisee.Info
- Publication number
- EP0485585A1 EP0485585A1 EP91911476A EP91911476A EP0485585A1 EP 0485585 A1 EP0485585 A1 EP 0485585A1 EP 91911476 A EP91911476 A EP 91911476A EP 91911476 A EP91911476 A EP 91911476A EP 0485585 A1 EP0485585 A1 EP 0485585A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- scraper
- scrapers
- duct
- intended
- launcher
- 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.)
- Granted
Links
- 238000007790 scraping Methods 0.000 title claims description 9
- 239000012530 fluid Substances 0.000 claims abstract description 3
- 241000282887 Suidae Species 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 5
- 239000003209 petroleum derivative Substances 0.000 abstract description 2
- 239000010779 crude oil Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010908 decantation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/068—Well heads; Setting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells
-
- 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
Definitions
- the present invention relates to an automated scraping unit and, more particularly to such a unit used for cleaning pipes for petroleum products.
- FIG. 3 is a sectional view taken on line III - III of Figure 2;
- - Figure 4 is a plan view of a pig launcher assembly;
- an oil production facility includes a satellite platform
- a retaining strip 28 contains a series of scrapers 30.
- Each scraper 30 has substantially a shell shape and is made, for example, of polyurethane foam covered with strips of hard polyurethane, arranged in a spiral (not shown).
- the retaining strip 28 provided with scrapers 30 is stored in the store shown schematically at 22.
- the retaining strip 28 passes around a barrel 32 rotatably mounted about its longitudinal axis 34 and provided with several similar grooves 36, six in this case, each having a shape intended to receive a scraper 30.
- the retaining strip 28 once emptied of the scrapers 30 is recovered on a drum 38.
- the drum 38 and the barrel 32 are rotated together by belts 40 connected to a hydraulic motor 42 controlled by an indexing device (not shown).
- the scrapers disposed in the grooves 36 of the barrel 32 are held in position by a pressure belt 44 mounted around three rollers 46.
- One of the rollers 46 is equipped with an elastic device which ensures the permanent tension of the belt 44. The device indexing allows to present the scrapers 30 successively in the starting position.
- the barrel is equipped with two position sensors (not shown). A first is intended to confirm that the barrel 32 is in place to present a scraper 30 in the axis of the scraper launcher, the second has the function of confirm that a scraper 30 is ready to be sent to the launcher.
- the introduction of a scraper 30 into the launcher is effected by means of an introduction ram 48 or piston which is actuated by a hydraulic cylinder 50.
- a nozzle makes it possible to extract the scraper 30 of the holding strip 28 and pushing it inside the launcher.
- This nozzle is provided with a skirt 52 which avoids any catching with the retaining strip during the folding of the hydraulic cylinder 50.
- the hydraulic cylinder 50 is provided with two limit switches
- the scraper launcher 18 is of a type known per se and is intended to automatically carry out the various maneuvers necessary for the dispatch of a scraper and for resting the system where the launcher is isolated from the source of crude .
- the launcher 18 may be of the type intended for the shipment of instrumented scrapers of the LINALOG-AMF Tuboscope type. As shown in Figures 1 and
- the scraper launcher 18 is provided with three valves 54, 56 and 58 which make it possible to control the flow of the crude oil during the launching of a scraper.
- a fourth valve 60 which performs the door function of the launcher is equipped with a leakage control.
- Each of the valves 54 to 60 is motorized and is equipped with two limit switches indicating the open and closed positions of the valve.
- the scraper unit further comprises a scraper receiver 20 which is intended to automatically carry out the various maneuvers necessary for receiving a scraper.
- the scraper receiver 20 comprises a vertically mounted conduit, generally indicated by 62, which communicates with a tank 64 for storing scraping residues.
- the tank 64 includes an internal decantation system corresponding to a filling level of, for example, 50%. Grids extend the settling barrage to prevent the scrapers from spilling downstream of the settling tank.
- the wiper receiver has a special outlet for collecting special wipers, for example instrumented wipers.
- the tank 64 receives the pigs, the residues and the crude oil vertically after opening the valve 68. This reception operation can be followed by a flushing operation of the pig receiver.
- the reservoir 64 At the end of each year, the reservoir 64 will be evacuated to the ground where the emptying and cleaning thereof is carried out. Therefore, the tank includes the openings necessary for manual cleaning and depletion of residual liquids, as well as the handling outlets.
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Cleaning In General (AREA)
- Soil Working Implements (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR909006808A FR2662621B1 (fr) | 1990-05-31 | 1990-05-31 | Unite de raclage automatisee. |
FR9006808 | 1990-05-31 | ||
PCT/FR1991/000426 WO1991018686A1 (fr) | 1990-05-31 | 1991-05-30 | Unite de raclage automatisee |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0485585A1 true EP0485585A1 (fr) | 1992-05-20 |
EP0485585B1 EP0485585B1 (fr) | 1995-03-22 |
Family
ID=9397162
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91911476A Expired - Lifetime EP0485585B1 (fr) | 1990-05-31 | 1991-05-30 | Unite de raclage automatisee |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0485585B1 (fr) |
FR (1) | FR2662621B1 (fr) |
NO (1) | NO174696C (fr) |
OA (1) | OA09650A (fr) |
WO (1) | WO1991018686A1 (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9519247D0 (en) * | 1995-09-21 | 1995-11-22 | Coflexip Stena Offshore Ltd | Improvements in or relating to pipeline pigging |
DE102004037247B4 (de) * | 2004-07-31 | 2006-04-27 | Eisenmann Lacktechnik Gmbh & Co. Kg | Versorgungseinheit für eine Applikationseinrichtung und Verfahren zum Betreiben einer solchen |
NL1034779C2 (nl) * | 2007-11-29 | 2009-06-02 | Plastic Test Inst Netherlands | Werkwijze voor het afvoeren van een achtergebleven gasvolume uit een ruimte van een hoofdgasleiding en de toepassing van de werkwijze in een lanceer- of ontvangstation voor een schraper. |
DE102014016717A1 (de) * | 2014-11-13 | 2016-05-19 | Eisenmann Se | Molchsystem |
CN115263228A (zh) * | 2022-07-15 | 2022-11-01 | 中国石油化工股份有限公司 | 一种油井井口防污染装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2976928A (en) * | 1957-06-07 | 1961-03-28 | Western Co Of North America | Method and apparatus for injecting perforation sealers |
US3148037A (en) * | 1957-08-09 | 1964-09-08 | George C Szego | Repeating chemical reactor apparatus |
US3291217A (en) * | 1964-03-09 | 1966-12-13 | Richfield Oil Corp | Flow line pig injector |
US3372705A (en) * | 1966-12-13 | 1968-03-12 | James A. Bodhaine | Ball sealer injector |
US4785880A (en) * | 1987-06-12 | 1988-11-22 | Robert Ashton | Apparatus for dispensing chemicals into oil and gas wells |
-
1990
- 1990-05-31 FR FR909006808A patent/FR2662621B1/fr not_active Expired - Fee Related
-
1991
- 1991-05-30 WO PCT/FR1991/000426 patent/WO1991018686A1/fr active IP Right Grant
- 1991-05-30 EP EP91911476A patent/EP0485585B1/fr not_active Expired - Lifetime
-
1992
- 1992-01-30 NO NO920402A patent/NO174696C/no not_active IP Right Cessation
- 1992-01-31 OA OA60140A patent/OA09650A/fr unknown
Non-Patent Citations (1)
Title |
---|
See references of WO9118686A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2662621A1 (fr) | 1991-12-06 |
EP0485585B1 (fr) | 1995-03-22 |
FR2662621B1 (fr) | 1994-10-21 |
NO174696B (no) | 1994-03-14 |
OA09650A (fr) | 1993-05-15 |
NO920402L (no) | 1992-01-30 |
WO1991018686A1 (fr) | 1991-12-12 |
NO920402D0 (no) | 1992-01-30 |
NO174696C (no) | 1994-06-22 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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17P | Request for examination filed |
Effective date: 19920128 |
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Owner name: ELF AQUITAINE |
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STAA | Information on the status of an ep patent application or granted ep patent |
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