EP3417143A4 - Système de traitement de puits de forage - Google Patents

Système de traitement de puits de forage Download PDF

Info

Publication number
EP3417143A4
EP3417143A4 EP17753921.0A EP17753921A EP3417143A4 EP 3417143 A4 EP3417143 A4 EP 3417143A4 EP 17753921 A EP17753921 A EP 17753921A EP 3417143 A4 EP3417143 A4 EP 3417143A4
Authority
EP
European Patent Office
Prior art keywords
treatment system
wellbore treatment
wellbore
treatment
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
Application number
EP17753921.0A
Other languages
German (de)
English (en)
Other versions
EP3417143A1 (fr
EP3417143B1 (fr
Inventor
James GILLIAT
Rajani SATTI
Stephen ZUKLIC
Scott Nelson
Juan Flores
Harold Brannon
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.)
Baker Hughes Holdings LLC
Original Assignee
Baker Hughes Inc
Baker Hughes a GE Co LLC
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 Baker Hughes Inc, Baker Hughes a GE Co LLC filed Critical Baker Hughes Inc
Publication of EP3417143A1 publication Critical patent/EP3417143A1/fr
Publication of EP3417143A4 publication Critical patent/EP3417143A4/fr
Application granted granted Critical
Publication of EP3417143B1 publication Critical patent/EP3417143B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/11Perforators; Permeators
    • E21B43/116Gun or shaped-charge perforators
    • E21B43/117Shaped-charge perforators
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/25Methods for stimulating production

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)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Treating Waste Gases (AREA)
  • Liquid Deposition Of Substances Of Which Semiconductor Devices Are Composed (AREA)
EP17753921.0A 2016-02-17 2017-02-17 Système de traitement de puits de forage Active EP3417143B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201662296308P 2016-02-17 2016-02-17
PCT/US2017/018357 WO2017143181A1 (fr) 2016-02-17 2017-02-17 Système de traitement de puits de forage

Publications (3)

Publication Number Publication Date
EP3417143A1 EP3417143A1 (fr) 2018-12-26
EP3417143A4 true EP3417143A4 (fr) 2019-11-06
EP3417143B1 EP3417143B1 (fr) 2021-08-18

Family

ID=59560249

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17753921.0A Active EP3417143B1 (fr) 2016-02-17 2017-02-17 Système de traitement de puits de forage

Country Status (5)

Country Link
US (1) US20170234116A1 (fr)
EP (1) EP3417143B1 (fr)
BR (1) BR112018015899B1 (fr)
SA (1) SA518392182B1 (fr)
WO (1) WO2017143181A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020150232A1 (fr) * 2019-01-16 2020-07-23 Hunting Titan, Inc. Opération d'acidification et perforation coaxiale intégrée
WO2020197607A1 (fr) * 2019-03-27 2020-10-01 Halliburton Energy Services, Inc. Amélioration de placement de fluide de traitement dans une formation souterraine
US20210404299A1 (en) * 2019-06-20 2021-12-30 Halliburton Energy Services, Inc. Microencapsulated Acid with Perforation Strategies to Improve the Delivery and Treatment of Formations in Hydraulic Fracturing Applications
US11352859B2 (en) * 2019-09-16 2022-06-07 Halliburton Energy Services, Inc. Well production enhancement systems and methods to enhance well production
US11994009B2 (en) * 2020-03-31 2024-05-28 Saudi Arabian Oil Company Non-explosive CO2-based perforation tool for oil and gas downhole operations
US11441407B2 (en) 2020-06-15 2022-09-13 Saudi Arabian Oil Company Sheath encapsulation to convey acid to formation fracture

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4976318A (en) * 1989-12-01 1990-12-11 Mohaupt Henry H Technique and apparatus for stimulating long intervals
US20050061506A1 (en) * 2000-03-02 2005-03-24 Schlumberger Technology Corporation Well Treatment System and Method
US20130192829A1 (en) * 2011-04-21 2013-08-01 Halliburton Energy Services, Inc. Method and apparatus for expendable tubing-conveyed perforating gun
WO2016022111A1 (fr) * 2014-08-06 2016-02-11 Halliburton Energy Services, Inc. Dispositif de perforation pouvant se dissoudre

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3270668A (en) * 1964-12-29 1966-09-06 Atlantic Res Corp Well-treating apparatus
US6082450A (en) * 1996-09-09 2000-07-04 Marathon Oil Company Apparatus and method for stimulating a subterranean formation
US6722434B2 (en) * 2002-05-31 2004-04-20 Halliburton Energy Services, Inc. Methods of generating gas in well treating fluids
US7216708B1 (en) * 2003-09-12 2007-05-15 Bond Lesley O Reactive stimulation of oil and gas wells
US7621332B2 (en) * 2005-10-18 2009-11-24 Owen Oil Tools Lp Apparatus and method for perforating and fracturing a subterranean formation
US7909096B2 (en) * 2007-03-02 2011-03-22 Schlumberger Technology Corporation Method and apparatus of reservoir stimulation while running casing
US7909115B2 (en) * 2007-09-07 2011-03-22 Schlumberger Technology Corporation Method for perforating utilizing a shaped charge in acidizing operations
US9695677B2 (en) * 2011-09-02 2017-07-04 Schlumberger Technology Corporation Disappearing perforating gun system
US9133695B2 (en) * 2011-09-03 2015-09-15 Baker Hughes Incorporated Degradable shaped charge and perforating gun system
EA201491183A1 (ru) * 2012-01-18 2014-12-30 Оуэн Ойл Тулз Лп Система и способ для улучшенной перфорации ствола скважины
EP2992178B1 (fr) * 2013-05-03 2018-02-14 Services Pétroliers Schlumberger Technique de canon de perforation sensiblement dégradable
WO2015009753A1 (fr) * 2013-07-15 2015-01-22 Los Alamos National Security, Llc Fracturation géologique en plusieurs étapes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4976318A (en) * 1989-12-01 1990-12-11 Mohaupt Henry H Technique and apparatus for stimulating long intervals
US20050061506A1 (en) * 2000-03-02 2005-03-24 Schlumberger Technology Corporation Well Treatment System and Method
US20130192829A1 (en) * 2011-04-21 2013-08-01 Halliburton Energy Services, Inc. Method and apparatus for expendable tubing-conveyed perforating gun
WO2016022111A1 (fr) * 2014-08-06 2016-02-11 Halliburton Energy Services, Inc. Dispositif de perforation pouvant se dissoudre

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2017143181A1 *

Also Published As

Publication number Publication date
US20170234116A1 (en) 2017-08-17
BR112018015899A2 (pt) 2018-12-26
WO2017143181A1 (fr) 2017-08-24
EP3417143A1 (fr) 2018-12-26
EP3417143B1 (fr) 2021-08-18
SA518392182B1 (ar) 2022-04-21
BR112018015899B1 (pt) 2022-11-08

Similar Documents

Publication Publication Date Title
EP3463464A4 (fr) Traitement d'association
EP3313490B8 (fr) Système de tubage
EP3487464A4 (fr) Un déambulateur.
EP3601536A4 (fr) Procédés de traitement
EP3212270A4 (fr) Système de cathéter
EP3238761A4 (fr) Système de traitement du sang
EP3356633A4 (fr) Améliorations apportées à un système de manchon conique fendu
EP3510236A4 (fr) Système de conduite d'écoulement de fracturation
EP3508242A4 (fr) Cathéter
EP3515414A4 (fr) Polythérapie
EP3365518A4 (fr) Appareil de menottes
EP3194721A4 (fr) Système de télémesure d'appareil de forage
EP3417143A4 (fr) Système de traitement de puits de forage
EP3260155B8 (fr) Cathéter
EP3520852A4 (fr) Cathéter
EP3362091A4 (fr) Polythérapie
EP3413011A4 (fr) Système de télémétrie
EP3419959A4 (fr) Traitement combiné
EP3328384A4 (fr) Traitement de la fibrose
EP3597225A4 (fr) Procédé de traitement
EP3425892A4 (fr) Système de réunion
EP3681536A4 (fr) Méthode de traitement
EP3407909A4 (fr) Traitement contre le cancer
EP3340785A4 (fr) Système de traitement de l'eau
EP3386629A4 (fr) Système de traitement de fluide

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

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

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20180914

AK Designated contracting states

Kind code of ref document: A1

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

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20191008

RIC1 Information provided on ipc code assigned before grant

Ipc: E21B 43/11 20060101AFI20191001BHEP

Ipc: E21B 43/117 20060101ALI20191001BHEP

Ipc: E21B 43/25 20060101ALI20191001BHEP

Ipc: E21B 43/116 20060101ALI20191001BHEP

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

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20200728

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

Free format text: STATUS: EXAMINATION IS IN PROGRESS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20210315

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BAKER HUGHES HOLDINGS LLC

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

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

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602017044309

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Ref country code: AT

Ref legal event code: REF

Ref document number: 1421808

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210915

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20210818

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1421808

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210818

REG Reference to a national code

Ref country code: NO

Ref legal event code: T2

Effective date: 20210818

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

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210818

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210818

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211220

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210818

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211118

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210818

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210818

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210818

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210818

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

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210818

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210818

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211119

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210818

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210818

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

Ref country code: GB

Payment date: 20220119

Year of fee payment: 6

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602017044309

Country of ref document: DE

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

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210818

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210818

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210818

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210818

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210818

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210818

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

Ref country code: NO

Payment date: 20220121

Year of fee payment: 6

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

Effective date: 20220519

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210818

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

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210818

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602017044309

Country of ref document: DE

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

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210818

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20220228

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

Ref country code: LU

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

Effective date: 20220217

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

Ref country code: FR

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

Effective date: 20220228

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

Ref country code: LI

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

Effective date: 20220228

Ref country code: IE

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

Effective date: 20220217

Ref country code: DE

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

Effective date: 20220901

Ref country code: CH

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

Effective date: 20220228

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

Ref country code: BE

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

Effective date: 20220228

REG Reference to a national code

Ref country code: NO

Ref legal event code: MMEP

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

Effective date: 20230217

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

Ref country code: NO

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

Effective date: 20230228

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: 20230217

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: 20230217

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

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20170217

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

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210818

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210818

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

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210818