WO1998032949A1 - Dispositif pour rincer les trous de gaz et d'huile d'un systeme d'extraction souterrain - Google Patents
Dispositif pour rincer les trous de gaz et d'huile d'un systeme d'extraction souterrain Download PDFInfo
- Publication number
- WO1998032949A1 WO1998032949A1 PCT/EP1998/000298 EP9800298W WO9832949A1 WO 1998032949 A1 WO1998032949 A1 WO 1998032949A1 EP 9800298 W EP9800298 W EP 9800298W WO 9832949 A1 WO9832949 A1 WO 9832949A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- nozzle body
- flushing
- lamellae
- liner
- detergent
- Prior art date
Links
- 238000000605 extraction Methods 0.000 title 1
- 238000011010 flushing procedure Methods 0.000 claims abstract description 20
- 210000002105 tongue Anatomy 0.000 claims abstract 2
- 239000003599 detergent Substances 0.000 claims description 14
- 239000003129 oil well Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims 1
- 230000007423 decrease Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 18
- 238000005406 washing Methods 0.000 description 12
- 238000005086 pumping Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000004576 sand Substances 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
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
Definitions
- a flushing nozzle on a detergent line is inserted through the existing underground conveyor equipment;
- the largest possible outside diameter of the flushing nozzle is limited by restrictions in the underground equipment (underground safety valve, packer, landing nipple profiles), which have a significantly smaller inside diameter than the end piping.
- the flow cross-section of the flushing can and the inner diameter of the liner remain correspondingly large.
- a method for directionally applying high pressure jets to well casing to clean openings in the casing, liner and the adjacent geologic formation which are plugged with foreign matter is known from US Patent 5,060,725.
- High velocity jets of liquid are used to remove plugging material rom the openings.
- Power swivels per it rotation and Kelly hoses allow reciprocation of the jet tool and tubing string while maintaining high pressure in the apparatus.
- the object of the invention is, on the one hand, to ensure in a device of the type mentioned at the outset that the washing liquid actually reaches the intended areas and that the nozzle body can be moved in both directions during the introduction of the washing liquid.
- the segments go back to the original outer diameter and the device can be removed due to the restrictions. Since the divers are made of metal, they are not subject to any significant wear; “Activating the diverters can therefore be repeated any number of times by changing the pumping rate.
- the device can also be operated while pumping, as it is not fixed in the liner despite the activated diverter.
- FIG. 1 shows a device according to the invention in a sectional view, the slats being shown in the retracted position.
- Fig. 2 shows the corresponding representation with the slats extended.
- a nozzle body l ⁇ is shown, at the upper end of a screw 12 is attached, which in turn is connected to the detergent or dishwasher line, not shown.
- the front end of the nozzle body 11 there is a nozzle head 10 with a plurality of aligned nozzles.
- washing liquid can be fed via a pressure medium source via the detergent line and via the screw connection 12 into the interior of the Nozzle body 11 are guided under sufficiently high pressure so that the detergent emerges from the nozzles of the nozzle body 10.
- FIGS. 1 and 2 further parts are provided on the nozzle body according to the invention, namely a total of six fins distributed over the circumference, only two of which are shown in FIGS. 1 and 2 and which have reference numbers 13 there.
- These lamellae 13 are attached to a basket 15 in such a way that they want to assume an outwardly spread position, such as that shown in FIG.
- the slats cannot assume this position in the operating position according to FIG. 1 because they are surrounded by a sleeve 14.
- the sleeve can be moved back and forth on the nozzle body 11 and is conically equipped at its free end on the inside, so that, with a relatively small outside diameter, the fins 13 assume the position shown in FIG.
- the sleeve 14 is arranged via two seals on the nozzle body 11 such that detergent can also act on a part projecting in the opposite direction, which can best be seen in FIG. 2, via a transverse bore from the interior of the nozzle body 11.
- the washing liquid exerts a force on the sleeve 14, so that the sleeve 14 changes from the position shown in FIG. 1 to the position shown in FIG. 2.
- the lamellae 13 can spread outwards and, as shown in FIG. 2, lie against the inner wall of the borehole or the liner.
- the desired barrier of the space behind the nozzle body is created, so that the emerging washing and rinsing liquid enters the space in front of the nozzle body, but practically not in the space behind the nozzle body.
- a spiral 16 is provided on the nozzle body 11, which ensures that the sleeve 14 is in the forward-facing position, as shown in FIG. 1 , occupies.
- the pressure of the washing liquid is so high that the sleeve 14 moves back against the force of the spring and compresses the spring. If the detergent pressure then decreases again, the spring 16 can return the sleeve to the position shown in FIG. 1.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Nozzles (AREA)
- Earth Drilling (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002278126A CA2278126A1 (fr) | 1997-01-23 | 1998-01-21 | Dispositif pour le nettoyage par rincage des trous aleses des convoyeurs employes dans l'extraction souterraine |
EP98907964A EP0954676A1 (fr) | 1997-01-23 | 1998-01-21 | Dispositif pour rincer les trous de gaz et d'huile d'un systeme d'extraction souterrain |
NO993545A NO993545D0 (no) | 1997-01-23 | 1999-07-19 | Anordning for spyling av gass- og oljeboringer i underjordisk transportutstyr |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19702197.2 | 1997-01-23 | ||
DE1997102197 DE19702197C1 (de) | 1997-01-23 | 1997-01-23 | Vorrichtung zum Spülen von Gas- und Ölbohrungen einer Untertage-Förderausrüstung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998032949A1 true WO1998032949A1 (fr) | 1998-07-30 |
Family
ID=7818065
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1998/000298 WO1998032949A1 (fr) | 1997-01-23 | 1998-01-21 | Dispositif pour rincer les trous de gaz et d'huile d'un systeme d'extraction souterrain |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0954676A1 (fr) |
CA (1) | CA2278126A1 (fr) |
DE (1) | DE19702197C1 (fr) |
NO (1) | NO993545D0 (fr) |
WO (1) | WO1998032949A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2561220C1 (ru) * | 2014-02-07 | 2015-08-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Кубанский государственный технологический университет" (ФГБОУ ВПО "КубГТУ") | Струйная установка для промывки скважин |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4393927A (en) * | 1979-11-15 | 1983-07-19 | Mortimer Singer | Apparatus for positioning a treating liquid at the bottom of a well |
US4441557A (en) * | 1980-10-07 | 1984-04-10 | Downhole Services, Inc. | Method and device for hydraulic jet well cleaning |
US4625799A (en) * | 1985-06-19 | 1986-12-02 | Otis Engineering Corporation | Cleaning tool |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3760878A (en) * | 1972-03-16 | 1973-09-25 | Amoco Prod Co | Perforations washing tool |
US5060725A (en) * | 1989-12-20 | 1991-10-29 | Chevron Research & Technology Company | High pressure well perforation cleaning |
-
1997
- 1997-01-23 DE DE1997102197 patent/DE19702197C1/de not_active Expired - Fee Related
-
1998
- 1998-01-21 EP EP98907964A patent/EP0954676A1/fr not_active Withdrawn
- 1998-01-21 WO PCT/EP1998/000298 patent/WO1998032949A1/fr not_active Application Discontinuation
- 1998-01-21 CA CA002278126A patent/CA2278126A1/fr not_active Abandoned
-
1999
- 1999-07-19 NO NO993545A patent/NO993545D0/no not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4393927A (en) * | 1979-11-15 | 1983-07-19 | Mortimer Singer | Apparatus for positioning a treating liquid at the bottom of a well |
US4441557A (en) * | 1980-10-07 | 1984-04-10 | Downhole Services, Inc. | Method and device for hydraulic jet well cleaning |
US4625799A (en) * | 1985-06-19 | 1986-12-02 | Otis Engineering Corporation | Cleaning tool |
Also Published As
Publication number | Publication date |
---|---|
CA2278126A1 (fr) | 1998-07-30 |
DE19702197C1 (de) | 1998-09-03 |
EP0954676A1 (fr) | 1999-11-10 |
NO993545L (no) | 1999-07-19 |
NO993545D0 (no) | 1999-07-19 |
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