EP2006486A3 - Verlassen vom Bohrloch in einem einzigen Arbeitsgang mit Doppelpermanentpacker und Bohrlochperforator - Google Patents

Verlassen vom Bohrloch in einem einzigen Arbeitsgang mit Doppelpermanentpacker und Bohrlochperforator Download PDF

Info

Publication number
EP2006486A3
EP2006486A3 EP08251821A EP08251821A EP2006486A3 EP 2006486 A3 EP2006486 A3 EP 2006486A3 EP 08251821 A EP08251821 A EP 08251821A EP 08251821 A EP08251821 A EP 08251821A EP 2006486 A3 EP2006486 A3 EP 2006486A3
Authority
EP
European Patent Office
Prior art keywords
perforating gun
single trip
packer
wellbore
well abandonment
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Withdrawn
Application number
EP08251821A
Other languages
English (en)
French (fr)
Other versions
EP2006486A2 (de
Inventor
John H. Hales
John D. Burleson
Gavin H. Drummond
R. George Flint
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.)
Halliburton Energy Services Inc
Original Assignee
Halliburton Energy Services Inc
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 Halliburton Energy Services Inc filed Critical Halliburton Energy Services Inc
Publication of EP2006486A2 publication Critical patent/EP2006486A2/de
Publication of EP2006486A3 publication Critical patent/EP2006486A3/de
Withdrawn legal-status Critical Current

Links

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
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
    • E21B33/134—Bridging plugs
    • 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
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • 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
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/124—Units with longitudinally-spaced plugs for isolating the intermediate space
    • 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
    • E21B43/11—Perforators; Permeators
    • E21B43/119—Details, e.g. for locating perforating place or direction
    • E21B43/1193—Dropping perforation guns after gun actuation

Landscapes

  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Piles And Underground Anchors (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
EP08251821A 2007-06-21 2008-05-23 Verlassen vom Bohrloch in einem einzigen Arbeitsgang mit Doppelpermanentpacker und Bohrlochperforator Withdrawn EP2006486A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/766,647 US20080314591A1 (en) 2007-06-21 2007-06-21 Single trip well abandonment with dual permanent packers and perforating gun

Publications (2)

Publication Number Publication Date
EP2006486A2 EP2006486A2 (de) 2008-12-24
EP2006486A3 true EP2006486A3 (de) 2011-08-31

Family

ID=39859616

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08251821A Withdrawn EP2006486A3 (de) 2007-06-21 2008-05-23 Verlassen vom Bohrloch in einem einzigen Arbeitsgang mit Doppelpermanentpacker und Bohrlochperforator

Country Status (3)

Country Link
US (1) US20080314591A1 (de)
EP (1) EP2006486A3 (de)
BR (1) BRPI0802170A2 (de)

Families Citing this family (87)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7870895B2 (en) * 2007-08-09 2011-01-18 Schlumberger Technology Corporation Packer
US9089928B2 (en) 2008-08-20 2015-07-28 Foro Energy, Inc. Laser systems and methods for the removal of structures
US9669492B2 (en) 2008-08-20 2017-06-06 Foro Energy, Inc. High power laser offshore decommissioning tool, system and methods of use
US9664012B2 (en) 2008-08-20 2017-05-30 Foro Energy, Inc. High power laser decomissioning of multistring and damaged wells
US20100051278A1 (en) * 2008-09-04 2010-03-04 Integrated Production Services Ltd. Perforating gun assembly
AT507087B1 (de) * 2008-12-05 2010-02-15 Siemens Vai Metals Tech Gmbh Verfahren und vorrichtung zur semi-aktiven reduktion von druckschwingungen in einem hydrauliksystem
AT507088B1 (de) * 2008-12-05 2010-02-15 Siemens Vai Metals Tech Gmbh Verfahren und vorrichtung zur aktiven unterdrückung von druckschwingungen in einem hydrauliksystem
JP5161370B2 (ja) 2009-07-10 2013-03-13 日本電信電話株式会社 光変調器
CA2693676C (en) * 2010-02-18 2011-11-01 Ncs Oilfield Services Canada Inc. Downhole tool assembly with debris relief, and method for using same
US8397802B2 (en) 2010-06-07 2013-03-19 Weatherford/Lamb, Inc. Swellable packer slip mechanism
GB2483675A (en) * 2010-09-16 2012-03-21 Bruce Arnold Tunget Shock absorbing conductor orientation housing
GB201012175D0 (en) * 2010-07-20 2010-09-01 Metrol Tech Ltd Procedure and mechanisms
US9022115B2 (en) * 2010-11-11 2015-05-05 Gas Technology Institute Method and apparatus for wellbore perforation
NO335972B1 (no) * 2011-01-12 2015-04-07 Hydra Systems As Fremgangsmåte for kombinert rengjøring og plugging i en brønn, vaskeverktøy for retningsstyrt spyling i en brønn, samt anvendelse av vaskeverktøyet
NO335153B1 (no) * 2011-02-03 2014-10-06 Tco As Verktøy og fremgangsmåte for avstenging av en brønn
NO336527B1 (no) * 2012-03-09 2015-09-21 Hydra Systems As Fremgangsmåte ved soneisolering i en underjordisk brønn
CA2798343C (en) 2012-03-23 2017-02-28 Ncs Oilfield Services Canada Inc. Downhole isolation and depressurization tool
FR2988768A1 (fr) * 2012-03-30 2013-10-04 Eltrova Dispositif de colmatage de puits
US9488024B2 (en) * 2012-04-16 2016-11-08 Wild Well Control, Inc. Annulus cementing tool for subsea abandonment operation
US20130299165A1 (en) * 2012-05-10 2013-11-14 Bp Corporation North America Inc. Methods and systems for long-term monitoring of a well system during abandonment
US9447672B2 (en) * 2013-02-28 2016-09-20 Orbital Atk, Inc. Method and apparatus for ballistic tailoring of propellant structures and operation thereof for downhole stimulation
US20160084034A1 (en) * 2013-04-18 2016-03-24 Thomas Roane One-trip packer and perforating gun system
US9702680B2 (en) 2013-07-18 2017-07-11 Dynaenergetics Gmbh & Co. Kg Perforation gun components and system
NO336038B1 (no) * 2013-08-16 2015-04-27 Hydra Systems As Fremgangsmåte for etablering av en ny brønnbane fra en eksisterende brønn
EP3036395B1 (de) * 2013-08-21 2017-07-19 Archer Oiltools AS Ein-schritt-perforations- und waschwerkzeug zum verschliessen und verlassen von bohrlöchern
US9810047B2 (en) * 2013-08-26 2017-11-07 Baker Hughes Re-fracturing bottom hole assembly and method
NO339191B1 (no) 2013-09-06 2016-11-14 Hydra Systems As Fremgangsmåte for isolering av en permeabel sone i en underjordisk brønn
US9404350B2 (en) 2013-09-16 2016-08-02 Baker Hughes Incorporated Flow-activated flow control device and method of using same in wellbores
US20160230531A1 (en) * 2013-10-30 2016-08-11 Halliburton Energy Services Inc. Abandoned well monitoring system
WO2015088553A1 (en) * 2013-12-13 2015-06-18 Foro Energy, Inc. High power laser decommissioning of multistring and damaged wells
WO2015163879A1 (en) 2014-04-24 2015-10-29 Halliburton Energy Services, Inc. Multi-perforating tool
AU2014399903B2 (en) * 2014-07-02 2017-11-23 Halliburton Energy Services, Inc. One-trip packer and perforating gun system
US9995124B2 (en) 2014-09-19 2018-06-12 Orbital Atk, Inc. Downhole stimulation tools and related methods of stimulating a producing formation
CA2910136A1 (en) 2014-10-24 2016-04-24 Magnum Oil Tools International, Ltd. Electrically powered setting tool and perforating gun
WO2016068719A1 (en) * 2014-10-29 2016-05-06 Norhard Oil & Gas As Apparatus for hydrocarbon well plugging
US9708888B2 (en) 2014-10-31 2017-07-18 Baker Hughes Incorporated Flow-activated flow control device and method of using same in wellbore completion assemblies
WO2016100064A1 (en) * 2014-12-17 2016-06-23 Wild Well Control, Inc. Perforation system for riserless abandonment operation
US9745827B2 (en) 2015-01-06 2017-08-29 Baker Hughes Incorporated Completion assembly with bypass for reversing valve
WO2017003465A1 (en) * 2015-06-30 2017-01-05 Halliburton Energy Services, Inc. Active orientation of a reference wellbore isolation device
NO342616B1 (en) * 2015-09-11 2018-06-18 Wellguard As A plugging tool, and method of plugging a well
CA2947723C (en) 2015-11-06 2023-09-12 Select Energy Systems Inc. Single-run well abandoning method and apparatus
US10961814B2 (en) 2016-05-24 2021-03-30 Halliburton Energy Services, Inc. Apparatus and method for isolating flow through wellbore
US10961828B2 (en) 2016-08-19 2021-03-30 Halliburton Energy Services, Inc. Utilizing electrically actuated explosives downhole
GB2555637B (en) * 2016-11-07 2019-11-06 Equinor Energy As Method of plugging and pressure testing a well
JP6942521B2 (ja) * 2017-05-25 2021-09-29 日本基礎技術株式会社 薬液注入装置及び地盤注入工法
GB201708827D0 (en) * 2017-06-02 2017-07-19 Aubin Ltd A method of abandoning a well
NO344241B1 (en) * 2017-11-20 2019-10-14 Altus Intervention Tech As Apparatus for performing multiple downhole operations in a production tubing
NO344284B1 (en) * 2018-03-14 2019-10-28 Archer Oiltools As Improved tandem releasable bridge plug system and method for setting such tandem releasable plugs
US11808093B2 (en) 2018-07-17 2023-11-07 DynaEnergetics Europe GmbH Oriented perforating system
US10837254B2 (en) * 2018-08-14 2020-11-17 Saudi Arabian Oil Company Tandem cement retainer and bridge plug
US11326412B2 (en) 2019-03-15 2022-05-10 Northrop Grumman Systems Corporation Downhole sealing apparatuses and related downhole assemblies and methods
US12241326B2 (en) 2019-05-14 2025-03-04 DynaEnergetics Europe GmbH Single use setting tool for actuating a tool in a wellbore
US11578549B2 (en) 2019-05-14 2023-02-14 DynaEnergetics Europe GmbH Single use setting tool for actuating a tool in a wellbore
CN114174632A (zh) 2019-07-19 2022-03-11 德力能欧洲有限公司 弹道致动的井筒工具
CN110685656A (zh) * 2019-10-11 2020-01-14 长江大学 一种低渗透油藏压裂三采一体化施工方法
CZ310189B6 (cs) 2019-12-10 2024-11-06 DynaEnergetics Europe GmbH Hlava rozněcovadla, rozněcovadlo a sestava rozněcovadla
WO2021185749A1 (en) 2020-03-16 2021-09-23 DynaEnergetics Europe GmbH Tandem seal adapter with integrated tracer material
US11655685B2 (en) 2020-08-10 2023-05-23 Saudi Arabian Oil Company Downhole welding tools and related methods
JP6867662B1 (ja) * 2020-09-10 2021-05-12 株式会社 地巧社 多段同時注入装置
US11549329B2 (en) 2020-12-22 2023-01-10 Saudi Arabian Oil Company Downhole casing-casing annulus sealant injection
US11828128B2 (en) 2021-01-04 2023-11-28 Saudi Arabian Oil Company Convertible bell nipple for wellbore operations
US11598178B2 (en) 2021-01-08 2023-03-07 Saudi Arabian Oil Company Wellbore mud pit safety system
US12054999B2 (en) 2021-03-01 2024-08-06 Saudi Arabian Oil Company Maintaining and inspecting a wellbore
US12366142B2 (en) 2021-03-03 2025-07-22 DynaEnergetics Europe GmbH Modular perforating gun system
CN113107418B (zh) * 2021-03-25 2023-05-05 中煤科工集团西安研究院有限公司 一种煤层底板含水层水平钻孔分段保压注浆装置及方法
US11767732B2 (en) * 2021-03-29 2023-09-26 Halliburton Energy Services, Inc. Systems and methods for plugging a well
US11448026B1 (en) 2021-05-03 2022-09-20 Saudi Arabian Oil Company Cable head for a wireline tool
US11859815B2 (en) 2021-05-18 2024-01-02 Saudi Arabian Oil Company Flare control at well sites
CA3160073A1 (en) * 2021-05-19 2022-11-19 Brett OLSON Well abandonment tool
US11905791B2 (en) 2021-08-18 2024-02-20 Saudi Arabian Oil Company Float valve for drilling and workover operations
US11913298B2 (en) 2021-10-25 2024-02-27 Saudi Arabian Oil Company Downhole milling system
US11891869B2 (en) 2021-11-30 2024-02-06 Baker Hughes Oilfield Operations Torque mechanism for bridge plug
US11927067B2 (en) 2021-11-30 2024-03-12 Baker Hughes Oilfield Operations Llc Shifting sleeve with extrudable ball and dog
US11891868B2 (en) 2021-11-30 2024-02-06 Baker Hughes Oilfield Operations Llc Extrusion ball actuated telescoping lock mechanism
US11814926B2 (en) 2021-11-30 2023-11-14 Baker Hughes Oilfield Operations Llc Multi plug system
US12276190B2 (en) 2022-02-16 2025-04-15 Saudi Arabian Oil Company Ultrasonic flow check systems for wellbores
NO347851B1 (en) * 2022-02-16 2024-04-22 Well Set P&A As Tool, system and method for delivering and pressure testing a downhole plug in one trip
US11680459B1 (en) 2022-02-24 2023-06-20 Saudi Arabian Oil Company Liner system with integrated cement retainer
US12018565B2 (en) 2022-05-24 2024-06-25 Saudi Arabian Oil Company Whipstock to plug and abandon wellbore below setting depth
US11753889B1 (en) 2022-07-13 2023-09-12 DynaEnergetics Europe GmbH Gas driven wireline release tool
WO2024013338A1 (en) 2022-07-13 2024-01-18 DynaEnergetics Europe GmbH Gas driven wireline release tool
US11993992B2 (en) 2022-08-29 2024-05-28 Saudi Arabian Oil Company Modified cement retainer with milling assembly
GB2700274A (en) * 2022-11-18 2026-01-07 Bernard Lee Paul Assembly for use in abandoning a wellbore
GB2624438B (en) * 2022-11-18 2026-04-29 Bernard Lee Paul Assembly for use in abandoning a wellbore
US20240271499A1 (en) * 2023-02-10 2024-08-15 Baker Hughes Oilfield Operations Llc Liner-top packer setting arrangement, method, and system
CN117108240B (zh) * 2023-09-27 2024-08-13 武汉齐达康能源装备有限公司 一种压裂放喷装置
US12448862B1 (en) * 2024-04-23 2025-10-21 Brett Olson All in one remedial tool

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2737247A (en) * 1950-09-26 1956-03-06 Baker Oil Tools Inc Well packer apparatus
US5103912A (en) * 1990-08-13 1992-04-14 Flint George R Method and apparatus for completing deviated and horizontal wellbores
EP0586223A2 (de) * 1992-08-31 1994-03-09 Halliburton Company Verfahren zum Testen einer produzierenden Bohrung sowie zur Perforierung eines neuen Horizontes
EP0796980A2 (de) * 1996-03-20 1997-09-24 Schlumberger Limited Verfahren und Einrichtung zum Isolieren von Zonen
GB2353310A (en) * 1996-07-17 2001-02-21 Baker Hughes Inc A downhole service tool
US6216785B1 (en) * 1998-03-26 2001-04-17 Schlumberger Technology Corporation System for installation of well stimulating apparatus downhole utilizing a service tool string
US20020157829A1 (en) * 2001-04-26 2002-10-31 Davis Jabus T. Complete trip system
US20020162657A1 (en) * 2001-05-04 2002-11-07 Weatherford/Lamb Method and apparatus for plugging a wellbore

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4544034A (en) * 1983-03-31 1985-10-01 Geo Vann, Inc. Actuation of a gun firing head
US6655456B1 (en) * 2001-05-18 2003-12-02 Dril-Quip, Inc. Liner hanger system
US20040040707A1 (en) * 2002-08-29 2004-03-04 Dusterhoft Ronald G. Well treatment apparatus and method
US7165611B2 (en) * 2003-06-10 2007-01-23 Halliburton Energy Services, Inc. Single trip perforation/packing method
US20050241835A1 (en) * 2004-05-03 2005-11-03 Halliburton Energy Services, Inc. Self-activating downhole tool

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2737247A (en) * 1950-09-26 1956-03-06 Baker Oil Tools Inc Well packer apparatus
US5103912A (en) * 1990-08-13 1992-04-14 Flint George R Method and apparatus for completing deviated and horizontal wellbores
EP0586223A2 (de) * 1992-08-31 1994-03-09 Halliburton Company Verfahren zum Testen einer produzierenden Bohrung sowie zur Perforierung eines neuen Horizontes
EP0796980A2 (de) * 1996-03-20 1997-09-24 Schlumberger Limited Verfahren und Einrichtung zum Isolieren von Zonen
GB2353310A (en) * 1996-07-17 2001-02-21 Baker Hughes Inc A downhole service tool
US6216785B1 (en) * 1998-03-26 2001-04-17 Schlumberger Technology Corporation System for installation of well stimulating apparatus downhole utilizing a service tool string
US20020157829A1 (en) * 2001-04-26 2002-10-31 Davis Jabus T. Complete trip system
US20020162657A1 (en) * 2001-05-04 2002-11-07 Weatherford/Lamb Method and apparatus for plugging a wellbore

Also Published As

Publication number Publication date
US20080314591A1 (en) 2008-12-25
BRPI0802170A2 (pt) 2009-03-31
EP2006486A2 (de) 2008-12-24

Similar Documents

Publication Publication Date Title
BR0307686A (pt) Aparelho para formar um revestimento do furo de poço em um furo de sondagem, método e sistema para formar um revestimento de furo de poço em uma formação subterrânea, e, revestimento de furo de poço posicionado em um furo de sondagem dentro de uma formação subterrânea
NO20043467D0 (no) System og en fremgangsmate for bruk og retur av boreslam fra en bronn som er boret pa havbunnen
EP2009230A3 (de) Stopfensysteme und Verfahren zur Verwendung von Stopfen in unterirdischen Formationen
GB2420358B (en) System and method for drilling a borehole
NO20064030L (no) Enkeltturs perforering, sementering og sandkontrollanordning- og fremgangsmate
WO2002086287A3 (en) Conveying instrumentation within a borehole
WO2007140266A3 (en) Configurable wellbore zone isolation system and related methods
WO2008067154A3 (en) Expandable wellbore liner
NO20050123L (no) Tettet overgangsskjot for grenborehull
WO2007024263A3 (en) Portable electrocrushing drill
WO2008107826A3 (en) Reservoir stimulation while running casing
CA2422834A1 (en) Isolation bypass transition joint
WO2010039694A3 (en) Method and apparatus for sealing a hole made with a cased hole formation tester
WO2011050061A3 (en) Through drillstring logging systems and methods
EP2450525A3 (de) Erdbohrmeißel mit Verrohrungsaufbaufunktion, Schneidelemente dafür und Verwendungsverfahren
AU2003219133A1 (en) System for forming a window and drilling a sidetrack wellbore
WO2009030925A3 (en) A downhole assembly
AU2005306537A1 (en) Methods and apparatus for drilling, completing and configuring U-tube boreholes
WO2010078388A3 (en) Liner drilling and cementing system utilizing a concentric inner ring
GB2443132A (en) Latchable hanger assembly for liner drilling and completion
WO2007092082A3 (en) Wellbore method and apparatus for completion, production and injection
WO2012170299A3 (en) Method and system for abandoning a borehole
WO2006099637A3 (en) Rock drill and method of breaking rock
MY201395A (en) Liner conveyed compliant screen system
BRPI0802170A2 (pt) método de abandonar pelo menos uma porção de poço e sistema de abandonar pelo menos uma porção de poço

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): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: HALLIBURTON ENERGY SERVICES, INC.

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

RIC1 Information provided on ipc code assigned before grant

Ipc: E21B 43/116 20060101ALI20110726BHEP

Ipc: E21B 33/134 20060101ALI20110726BHEP

Ipc: E21B 33/124 20060101ALI20110726BHEP

Ipc: E21B 33/12 20060101AFI20110726BHEP

AKY No designation fees paid
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: 20111201

REG Reference to a national code

Ref country code: DE

Ref legal event code: R108

Effective date: 20120509