EP0465316B1 - Dispositif d'activation de la production et de mesure pour puits non éruptifs - Google Patents

Dispositif d'activation de la production et de mesure pour puits non éruptifs Download PDF

Info

Publication number
EP0465316B1
EP0465316B1 EP91401758A EP91401758A EP0465316B1 EP 0465316 B1 EP0465316 B1 EP 0465316B1 EP 91401758 A EP91401758 A EP 91401758A EP 91401758 A EP91401758 A EP 91401758A EP 0465316 B1 EP0465316 B1 EP 0465316B1
Authority
EP
European Patent Office
Prior art keywords
measuring
production
string
effluent
well
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.)
Expired - Lifetime
Application number
EP91401758A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0465316A1 (fr
Inventor
Jacques Lessi
Christian Wittrisch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IFP Energies Nouvelles IFPEN
Original Assignee
IFP Energies Nouvelles IFPEN
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IFP Energies Nouvelles IFPEN filed Critical IFP Energies Nouvelles IFPEN
Publication of EP0465316A1 publication Critical patent/EP0465316A1/fr
Application granted granted Critical
Publication of EP0465316B1 publication Critical patent/EP0465316B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
    • E21B43/121—Lifting well fluids
    • E21B43/128—Adaptation of pump systems with down-hole electric drives
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/003—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings with electrically conducting or insulating means
    • 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
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/08—Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems
    • 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
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/14—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for displacing a cable or a cable-operated tool, e.g. for logging or perforating operations in deviated wells
    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/10—Locating fluid leaks, intrusions or movements

Definitions

  • the present invention relates to an improved activation and measurement device for a non-eruptive well during production and in particular for a deviated well by designating by this term any well of which at least part has a more or less strong inclination with respect to the vertical and / or substantially horizontal parts.
  • a device for activating and measuring logging for wells equipped for production of the non-eruptive type and are described. especially for deviated wells.
  • the devices described are particularly suitable for wells equipped for the production of petroleum effluents. They make it possible to determine the most favorable portions of the wells, especially when they cross heterogeneous reservoirs producing oil but also water and gas.
  • the equipment of a well generally comprises a casing or casing tube held in place by cementing. Throughout the area intended for production, a perforated tube (or liner) is installed over at least part of its length which extends the casing.
  • This perforated tube can possibly be cemented, the cemented annular being provided with passages putting the production area in communication with the tube.
  • a production column is lowered, formed by connecting successive sections.
  • This column is provided with centering elements relative to the tube.
  • Sealing means are arranged in the annular space between the column and the tube, so as to channel into the column all of the effluents produced by the production area.
  • the well not being eruptive, means of activation or pumping are associated with the column and lowered into the well to suck the effluents.
  • These activation means comprise for example a pump driven in rotation by an electric or hydraulic motor.
  • the device comprises at least one set of measuring instruments placed at the base of the production column for measuring the characteristics of part of the flows drawn by the pump. Isolation means are arranged around the column so as to separate the "liner" into two parts and to limit the measurements made to the effluents coming from only one of these two parts.
  • the device may also include two measuring assemblies for separately measuring the characteristics of the flows coming from the two opposite parts of the tube. By lengthening or shortening the column, the logging device is moved so as to make measurements on the effluents flowing from the formation at different locations in the well.
  • the activation pump and its drive motor are arranged at the base of the column very close to the sets of measuring instruments. It has been verified in use that this arrangement was not suitable for a number of production wells.
  • the section of the activation pumps and the commonly used drive motors is indeed relatively large and in certain cases the previous activation and measurement devices could not be lowered in certain production wells whose section is smaller than the current sections.
  • the downhole motors are supplied by cables most often arranged in the annular space between the tube and the production column. In the deviated parts of the production wells, experience has shown that this mode of supply can present failures due to possible crushing of the supply cables.
  • the improved device according to the invention makes it possible, by avoiding the above-mentioned drawbacks, to carry out production logs in a non-eruptive well crossing an underground zone producing effluents, this well being equipped for the production of these effluents by means of a perforated tube in its part passing through said underground zone, the device of a production column connected to a surface installation, of means for closing the annular space between the tube and the production column, to isolate the one on the other the two parts of the tube on either side, pumping means to activate the production of the well by said column and means for measuring at least part of the effluents produced, arranged in the vicinity of the bottom end of the column.
  • the length of the column portion between the location of the pumping means and the lower end of the column can be important. As this column portion is generally in the most horizontal part of the well, this avoids, in all cases where the motor means driving the pumping means are electric motors, the setting lengths of power cable most likely to get caught or crushed between the tube and the column.
  • the pumping means comprise for example a pump driven by an electric motor connected to the surface installation by an electric cable passing outside of said column.
  • the measuring means comprise for example a first set of instruments arranged on said column, for measuring the characteristics of the effluents coming from the upstream part of the tube, the furthest from the pumping means.
  • the measuring means may further comprise a second set of instruments for measuring the characteristics of the effluents coming from the downstream part of the tube, the closest to the pumping means.
  • the device may also include means for homogenizing at least part of the effluents produced before their treatment by the measuring means.
  • the multi-conductor cable can be provided with an electrical connection means to the measuring means, pluggable in a liquid medium and adapted to be moved by a stream of fluid along the production column.
  • the well 1 shown in Figures 1 to 3 is drilled from a surface installation to an oil formation 2. In its lower part crossing the producing zone, it is deflected. It can be horizontal or very slightly inclined with respect to the horizontal for example.
  • the well is equipped for production.
  • a tube or "liner" 3 is installed for this purpose. This tube is provided with perforations 4 in its part which crosses the producing zone.
  • It is a non-eruptive well whose production must be activated by a pumping system 5 lowered into the well interposed on a part 6A of a production column 6 formed by juxtaposition of tubular elements.
  • the suction system 5 comprises an enclosure or casing 7 where a hydraulic pump 8 is arranged, the outlet 8A of which communicates with the part of the column 6A.
  • the pump 8 is driven by an electric motor 9 also arranged in the enclosure 7.
  • the upper part 6A of the column 6, with the pumping system 5 fixed to its base, has a lower extension 6B.
  • a sealing or sealing block 10 of a known type of the expandable type or with cups for example, is arranged around the extension 6B in the vicinity of its lower end.
  • it On order from the surface installation, if it is an expandable obturation block, it can be applied against the wall of the tube 3 so as to separate in a substantially sealed manner the portions of the well 11, 12 which are on both sides.
  • the zone 11 furthest from the orifice of the well is designated upstream and the zone 12 opposite on the other side with respect to the block 10 downstream.
  • Centering means (not shown) are arranged around the production column 6 to facilitate its advancement in the well.
  • the lower orifice 13 of the extension 6B opens on the side of the upstream well portion 11.
  • the effluents entering the column 6B through the openings 13 and 14 flow towards the inlet 8B of the pump 8.
  • the openings 14 can be made anywhere between the block 10 and the pumping system and in particular in the immediate vicinity thereof.
  • the terminal part 15 of the production column contains a measuring assembly 16 comprising different instruments for measuring the upstream flows.
  • a first instrument is for example a tracer-ejector making it possible to measure the flow speed of the effluents coming from upstream.
  • a second instrument is a density measuring device such as a gamma density meter.
  • a third instrument is an electrical capacitance meter making it possible, for example, to determine the water content of the effluents.
  • This measuring assembly 16 is connected to a multi-conductor cable 18 by means of an electrical connector 19.
  • a pluggable electrical connector is used in a humid environment associated with a load bar and which makes it possible to establish connections. delayed in time between the measuring assembly 16 and the cable 18 and facilitate the installation of the device as will be seen in describing its operation.
  • a connector of this type is described for example in French patent FR-A-2,544,013 or US-A-4,690,214.
  • a homogenization means such as 17 associated with motor means, power can be supplied by conductors of the multi-conductor cable 18.
  • the cable 18 runs all along the portion 6B of the production column 6 to its opposite end in the vicinity of the pumping system 5.
  • a side window connection 20 of the "side-entry-sub” type is preferably inserted between the casing 7 containing the pumping system 5 and the column portion 6B.
  • the multi-conductor cable 18 passes through the window 21 of the connector 20 and goes up towards the surface installation outside the upper part 6A of the column.
  • the electric motor 9 for driving the pump 8 is supplied by a cable 22 which also goes up towards the surface installation in the ring finger between the casing C (or casing) cemented in the well and the upper part 6A of the column.
  • the pump motor 9 is for example an asynchronous motor and the power cable 22 connects it to a frequency converter 23 adapted to deliver to the asynchronous motor 9 an electric current of adjustable frequency and thus to vary the flow rate of the pump 8 depending on the amount of effluent produced.
  • the multi-conductor cable 18 connects the measuring instruments of the assembly 16 to a control, acquisition and supply assembly 24 arranged on the surface.
  • the multi-conductor cable 18 comprises conductors for the electrical supply of the measuring instruments of the measurement assembly 16 and possibly of the motor driving the homogenization means as well as other conductors for the transmission to the assembly 24 of the signals provided by measuring instruments.
  • the pumping assembly 5 is lowered to a sufficient depth that the effluents produced can reach freely without activation. This depth varying as a function of the position of the measuring assembly 16 the location where the pumping assembly is often lowered into a portion of the well which is less deviated and more easily accessible.
  • the multi-conductor cable 18 is protected by the production column throughout the lower portion of the well. Like the cable 22 for powering the motor 9, the cable 18 is found in the annular around the production column only in the upper part of the well, where it is least exposed to coincidences and crushing.
  • the device according to the invention also comprises a second measuring assembly 25 for the effluents coming from the downstream zone 12.
  • a second measuring assembly 25 for the effluents coming from the downstream zone 12.
  • the portion of tube 15 beyond the block of obturation 10 and containing the first measuring assembly 16 of the upstream effluents is connected and communicates with a second column portion 26 provided with an internal partition 27 which delimits a compartment 28.
  • An opening 29 makes compartment 28 communicate with the part downstream 12 from the well.
  • the second set of measurement 25 which is connected to the multi-conductor cable 18 by the electrical connector 19.
  • the power supply of the measurement devices of the first measurement set 16 and the transfer of the measurement signals between the latter and the second measurement set 25 is provided by a multi-conductor cable 30 passing through the partition 27.
  • the compartment 28 communicates through an opening 31 with the part 6B of the production column.
  • the upstream flow diverted by the partition 27 and measured and the measured downstream flow leaving through the opening 31, go up the column portion 6B to the inlet 8B of the pump.
  • the production column 6 may include a bypass on which a third measuring assembly (not shown) is installed to treat all of the effluents reaching the surface.
  • This third measurement assembly 30 can be analogous to the preceding measurement assemblies 16, 25. It can also be a device of the test separator type which separates the phases before measuring them separately and which is placed on the surface outside the well.
  • the device according to the invention makes it possible to make measurements at different points of the production well, whether these are flows from the upstream zone (embodiment of FIG. 1) and / or from the downstream zone (mode of Figure 2).
  • the upstream zone embdiment of FIG. 1
  • the downstream zone mode of Figure 2.
  • the device thus constituted, the sets of measurement in the well along the producing zone by successive additions or withdrawals of tube sections and, by comparing the measurements carried out at these different points, one can determine the composition of the effluents and the variation of their flow as a function of the position in well. Care is taken to keep the pump in a position between the dynamic level and a depth compatible with the maximum admissible tilt.

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Geophysics (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Measuring Volume Flow (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Optical Measuring Cells (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
EP91401758A 1990-06-29 1991-06-27 Dispositif d'activation de la production et de mesure pour puits non éruptifs Expired - Lifetime EP0465316B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9008270 1990-06-29
FR9008270A FR2663979B1 (fr) 1990-06-29 1990-06-29 Dispositif perfectionne d'activation et de mesure pour puits non eruptifs en cours de production.

Publications (2)

Publication Number Publication Date
EP0465316A1 EP0465316A1 (fr) 1992-01-08
EP0465316B1 true EP0465316B1 (fr) 1993-12-29

Family

ID=9398190

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91401758A Expired - Lifetime EP0465316B1 (fr) 1990-06-29 1991-06-27 Dispositif d'activation de la production et de mesure pour puits non éruptifs

Country Status (6)

Country Link
US (1) US5150750A (no)
EP (1) EP0465316B1 (no)
CA (1) CA2045927C (no)
DK (1) DK0465316T3 (no)
FR (1) FR2663979B1 (no)
NO (1) NO178904C (no)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT501725B1 (de) * 2006-02-21 2006-11-15 Evva Werke Vorrichtung zum betätigen eines sperrgliedes mit einem elektrischen generator

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2734313B1 (fr) * 1995-05-17 1997-08-08 Lucet Raymond Dispositif pour l'alimentation electrique d'une pompe immergee suspendue a un tuyau, en particulier un tuyau souple
FR2741382B1 (fr) * 1995-11-21 1997-12-26 Inst Francais Du Petrole Methode et dispositif de production par pompage dans un drain horizontal
WO2001065054A1 (en) * 2000-03-02 2001-09-07 Shell Internationale Research Maatschappij B.V. Power generation using batteries with reconfigurable discharge
US9482233B2 (en) 2008-05-07 2016-11-01 Schlumberger Technology Corporation Electric submersible pumping sensor device and method
US9982519B2 (en) 2014-07-14 2018-05-29 Saudi Arabian Oil Company Flow meter well tool

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4166215A (en) * 1977-09-23 1979-08-28 Schlumberger Technology Corporation Methods and apparatus for determining dynamic flow characteristics of production fluids in a well bore
FR2501777B1 (fr) * 1981-03-13 1986-08-29 Inst Francais Du Petrole Methode et dispositif pour effectuer, a l'aide d'outils specialises, des operations telles que des mesures, dans des portions de puits fortement inclinees sur la verticale, ou horizontales
FR2544013B1 (fr) * 1983-04-07 1986-05-02 Inst Francais Du Petrole Methode et dispositif permettant d'effectuer des mesures ou/et interventions dans un puits
US4574193A (en) * 1984-12-26 1986-03-04 Halliburton Company Method for logging fluid flow rate, water fraction, and/or salinity of water flowing into a well
US4621689A (en) * 1985-09-04 1986-11-11 Trw Inc. Cable suspended submergible pumping system with safety valve
US4741208A (en) * 1986-10-09 1988-05-03 Hughes Tool Company Pump differential pressure monitor system
FR2637089B1 (fr) * 1988-09-29 1990-11-30 Schlumberger Prospection Procede et dispositif pour l'analyse d'un ecoulement a plusieurs phases dans un puits d'hydrocarbures
US4905203A (en) * 1988-09-30 1990-02-27 Texaco Inc. Downhole doppler flowmeter
FR2637939B1 (fr) * 1988-10-14 1996-05-03 Inst Francais Du Petrole Procede et dispositif de diagraphie en puits de production non eruptif
US4928759A (en) * 1989-02-01 1990-05-29 Atlantic Richfield Company Tubing conveyed wellbore fluid flow measurement system
US4913239A (en) * 1989-05-26 1990-04-03 Otis Engineering Corporation Submersible well pump and well completion system
US4928758A (en) * 1989-10-10 1990-05-29 Atlantic Richfield Company Downhole wellbore flowmeter tool
US5018574A (en) * 1989-11-15 1991-05-28 Atlantic Richfield Company Tubing conveyed wellbore fluid flow measurement apparatus
US4984634A (en) * 1990-02-26 1991-01-15 Dowell Schlumberger Incorporated Logging of subterranean wells using coiled tubing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT501725B1 (de) * 2006-02-21 2006-11-15 Evva Werke Vorrichtung zum betätigen eines sperrgliedes mit einem elektrischen generator

Also Published As

Publication number Publication date
CA2045927A1 (fr) 1991-12-30
NO912534L (no) 1991-12-30
NO178904C (no) 1996-06-26
US5150750A (en) 1992-09-29
FR2663979B1 (fr) 1993-06-11
CA2045927C (fr) 2002-05-21
NO178904B (no) 1996-03-18
FR2663979A1 (fr) 1992-01-03
EP0465316A1 (fr) 1992-01-08
NO912534D0 (no) 1991-06-27
DK0465316T3 (da) 1994-03-14

Similar Documents

Publication Publication Date Title
EP0364362B1 (fr) Procédé et dispositif de diagraphie en puits de production non éruptif
FR2646508A1 (fr) Procede et appareil pour prelever en continu des echantillons gazeux contenus dans un liquide egalement charge de solides notamment dans une boue de forage petrolier
EP0013854B1 (fr) Procédé et dispositif de sécurité pour stockage souterrain d'un fluide sous pression
CA2120187C (fr) Dispositif et methode de pompage comportant deux orifices d'entrees d'aspiration - application a un drain subhorizontal
FR2581698A1 (fr) Ensemble permettant d'effectuer des forages orientes
EP0465316B1 (fr) Dispositif d'activation de la production et de mesure pour puits non éruptifs
FR2867627A1 (fr) Appareil et methode de production d'energie electrique dans un sondage
EP0816632A1 (fr) Dispositif et méthode de transmission d'informations par onde électromagnétique
FR2751373A1 (fr) Perfectionnement aux appareils de circulation de fluide
FR2680983A1 (fr) Dispositif melangeur continu, procede et utilisation dans une installation de pompage d'un fluide de forte viscosite.
FR2499122A1 (fr) Dispositif de dragage
US5224389A (en) Method and apparatus for taking samples from a groundwater monitoring site
CA2086297C (fr) Procede d'optimisation d'un dispositif de regulation et d'amortissement d'un ecoulement polyphasique et dispositif obtenu par le procede
FR2475925A1 (fr) Ensemble agitateur de fluides
FR2597543A1 (fr) Dispositif pour le forage immerge de fondations
EP0435727B1 (fr) Méthode et dispositif pour stimuler une zone souterraine par injection controlée de fluide provenant d'une zone voisine que l'on relie à la première par un drain traversant une couche intermédiaire peu perméable
FR2659748A1 (fr) Dispositif perfectionne pour faire des diagraphies de production dans des puits.
CA2044330C (fr) Methode et dispositif perfectionnes pour ameliorer les diagraphies de production d'un puits non eruptif active
FR2721347A1 (fr) Améliorations des, ou liées aux mesures en cours de forage dans un puits.
FR2637939A1 (fr) Procede et dispositif de diagraphie en puits de production non eruptif
FR2741382A1 (fr) Methode et dispositif de production par pompage dans un drain horizontal
CA1276452C (fr) Dispositif et procede pour determiner l'orientation de fractures dans une formation geologique
FR2813327A1 (fr) Dispositif pour drainer un sol en profondeur
CA2012772C (fr) Methode et dispositif de diagraphie de production en puits eruptif
FR2656035A1 (fr) Dispositif de pompage d'un liquide et en particulier d'un liquide a forte viscosite.

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

17P Request for examination filed

Effective date: 19910716

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DK GB IT NL

17Q First examination report despatched

Effective date: 19930223

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

ITF It: translation for a ep patent filed
AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DK GB IT NL

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940201

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20030602

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DK

Payment date: 20030624

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20030627

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040627

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050101

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20040627

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20050101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050627