EA201690281A1 - Система и способы борьбы с пескопроявлением - Google Patents

Система и способы борьбы с пескопроявлением

Info

Publication number
EA201690281A1
EA201690281A1 EA201690281A EA201690281A EA201690281A1 EA 201690281 A1 EA201690281 A1 EA 201690281A1 EA 201690281 A EA201690281 A EA 201690281A EA 201690281 A EA201690281 A EA 201690281A EA 201690281 A1 EA201690281 A1 EA 201690281A1
Authority
EA
Eurasian Patent Office
Prior art keywords
fluid
pipe
flow
dehydration
installation
Prior art date
Application number
EA201690281A
Other languages
English (en)
Inventor
Эдвин Эймстад Риисем
Павел Петухов
Анджей Тадеуш Тункель
Орельен Мени
Терье Моэн
Майкл Дин Лангле
Original Assignee
Шлюмбергер Текнолоджи Б.В.
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 Шлюмбергер Текнолоджи Б.В. filed Critical Шлюмбергер Текнолоджи Б.В.
Publication of EA201690281A1 publication Critical patent/EA201690281A1/ru

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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/02—Subsoil filtering
    • E21B43/04—Gravelling of 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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/02—Subsoil filtering
    • E21B43/08—Screens or liners

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)
  • Filtration Of Liquid (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
  • Treatment Of Sludge (AREA)

Abstract

Методика облегчает эксплуатацию скважины с применением по меньшей мере одной трубы дегидратации. По меньшей мере одна труба дегидратации установлена вдоль наружной части множества фильтровальных узлов, размещенных в стволе скважины, и соединена по текучей среде с установочной трубой по меньшей мере одного узла из фильтровальных узлов. Соединение по текучей среде обеспечивает текучей среде доступ в установочную трубу через отверстие установочной трубы. Поток текучей среды вдоль по меньшей мере одной трубы дегидратации регулируют с помощью механизма регулирования расхода. Дополнительно приток текучей среды снаружи во внутреннее пространство выбранных фильтровальных узлов отдельно регулируется устройством регулирования притока, связанным с каждым выбранным фильтровальным узлом.
EA201690281A 2013-07-25 2014-07-25 Система и способы борьбы с пескопроявлением EA201690281A1 (ru)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201361858405P 2013-07-25 2013-07-25
US201461985289P 2014-04-28 2014-04-28
PCT/US2014/048139 WO2015013582A1 (en) 2013-07-25 2014-07-25 Sand control system and methodology

Publications (1)

Publication Number Publication Date
EA201690281A1 true EA201690281A1 (ru) 2016-07-29

Family

ID=52389493

Family Applications (1)

Application Number Title Priority Date Filing Date
EA201690281A EA201690281A1 (ru) 2013-07-25 2014-07-25 Система и способы борьбы с пескопроявлением

Country Status (7)

Country Link
US (1) US10808506B2 (ru)
EP (1) EP3025020A4 (ru)
AU (1) AU2014293014B2 (ru)
CA (1) CA2918791A1 (ru)
EA (1) EA201690281A1 (ru)
SG (1) SG11201600444PA (ru)
WO (1) WO2015013582A1 (ru)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3025020A4 (en) 2013-07-25 2017-03-22 Services Pétroliers Schlumberger Sand control system and methodology
EP3137729A4 (en) * 2014-04-28 2017-12-20 Services Pétroliers Schlumberger System and method for gravel packing a wellbore
BR112017023757B8 (pt) * 2015-06-05 2022-07-12 Halliburton Energy Services Inc Sistema para uso em um furo de poço e método de enchimento de cascalho de um furo de poço
US10107093B2 (en) 2015-08-10 2018-10-23 Exxonmobil Upstream Research Company Downhole sand control assembly with flow control and method for completing a wellbore
US11143002B2 (en) 2017-02-02 2021-10-12 Schlumberger Technology Corporation Downhole tool for gravel packing a wellbore
CA3056102A1 (en) 2017-03-16 2018-09-20 Schlumberger Canada Limited System and methodology for controlling fluid flow
GB2578025B (en) * 2017-08-08 2022-02-16 Halliburton Energy Services Inc Inflow control device bypass and bypass isolation system for gravel packing with shunted sand control screens
RU2720207C1 (ru) * 2018-06-22 2020-04-28 Халлибертон Энерджи Сервисез, Инк. Многошунтовый узел давления для гравийной набивки
AU2019306071A1 (en) * 2018-07-19 2020-11-26 Halliburton Energy Services, Inc. Electronic flow control node to aid gravel pack and eliminate wash pipe
WO2020060658A1 (en) 2018-09-20 2020-03-26 Exxonmobil Upstream Research Company(Emhc-N1-4A-607) Inflow control device, and method for completing a wellbore to decrease water inflow
WO2020139440A1 (en) 2018-12-28 2020-07-02 Exxonmobil Upstream Research Company Inflow control device and method for completing a wellbore
US12091945B2 (en) 2020-08-31 2024-09-17 Schlumberger Technology Corporation Gravel packing with base pipe having limited open flow area
US11326420B2 (en) 2020-10-08 2022-05-10 Halliburton Energy Services, Inc. Gravel pack flow control using swellable metallic material

Family Cites Families (111)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4423773A (en) * 1981-07-17 1984-01-03 Baker International Corporation Single acting subterranean well valve assembly with conduit fluid stripping means
US4428428A (en) 1981-12-22 1984-01-31 Dresser Industries, Inc. Tool and method for gravel packing a well
US4733723A (en) * 1986-07-18 1988-03-29 Callegari Sr Stephen R Gravel pack assembly
US5113935A (en) 1991-05-01 1992-05-19 Mobil Oil Corporation Gravel packing of wells
US5341880A (en) 1993-07-16 1994-08-30 Halliburton Company Sand screen structure with quick connection section joints therein
JPH0991358A (ja) 1995-09-28 1997-04-04 Fujitsu Ltd 情報提供装置および方法
US5917489A (en) 1997-01-31 1999-06-29 Microsoft Corporation System and method for creating, editing, and distributing rules for processing electronic messages
RU2118746C1 (ru) 1997-03-19 1998-09-10 Сергей Александрович Эйгенсон Способ транспортирования вязких продуктов и устройство для его осуществления
US6219694B1 (en) 1998-05-29 2001-04-17 Research In Motion Limited System and method for pushing information from a host system to a mobile data communication device having a shared electronic address
US6275850B1 (en) 1998-07-24 2001-08-14 Siemens Information And Communication Networks, Inc. Method and system for management of message attachments
GB2341695B (en) 1998-09-17 2003-02-26 Petroleo Brasileiro Sa Device and method for eliminating severe slugging in multiphase-stream flow lines
US6654787B1 (en) 1998-12-31 2003-11-25 Brightmail, Incorporated Method and apparatus for filtering e-mail
US6505682B2 (en) 1999-01-29 2003-01-14 Schlumberger Technology Corporation Controlling production
US6176307B1 (en) 1999-02-08 2001-01-23 Union Oil Company Of California Tubing-conveyed gravel packing tool and method
US6427164B1 (en) 1999-06-23 2002-07-30 Mail Registry, Inc. Systems and methods for automatically forwarding electronic mail when the recipient is otherwise unknown
DE19940327C1 (de) 1999-08-25 2001-05-03 Meyer Rohr & Schacht Gmbh Vortriebsrohr für die Herstellung einer im wesentlichen horizontal verlaufenden Rohrleitung sowie Rohrleitung
US6868498B1 (en) 1999-09-01 2005-03-15 Peter L. Katsikas System for eliminating unauthorized electronic mail
WO2001053649A2 (en) 2000-01-17 2001-07-26 Lattice Intellectual Property Ltd Slugging control
US6691156B1 (en) 2000-03-10 2004-02-10 International Business Machines Corporation Method for restricting delivery of unsolicited E-mail
EP1281267A2 (en) 2000-05-03 2003-02-05 Daniel Schoeffler Method of enabling transmission and reception of communication when current destination for recipient is unknown to sender
US6721785B1 (en) 2000-06-07 2004-04-13 International Business Machines Corporation System for directing e-mail to selected recipients by applying transmission control directives on aliases identifying lists of recipients to exclude or include recipients
US6832246B1 (en) 2000-07-31 2004-12-14 Pitney Bowes Inc. Dynamic electronic forwarding system
US6681854B2 (en) 2000-11-03 2004-01-27 Schlumberger Technology Corp. Sand screen with communication line conduit
US6371210B1 (en) 2000-10-10 2002-04-16 Weatherford/Lamb, Inc. Flow control apparatus for use in a wellbore
NO313677B3 (no) 2000-12-06 2005-10-24 Abb Research Ltd Slug kontrollering
US6520254B2 (en) 2000-12-22 2003-02-18 Schlumberger Technology Corporation Apparatus and method providing alternate fluid flowpath for gravel pack completion
US6925605B2 (en) 2000-12-28 2005-08-02 International Business Machines Corporation Collating table for email
US20020129111A1 (en) 2001-01-15 2002-09-12 Cooper Gerald M. Filtering unsolicited email
US6575245B2 (en) * 2001-02-08 2003-06-10 Schlumberger Technology Corporation Apparatus and methods for gravel pack completions
GB2371319B (en) 2001-01-23 2003-08-13 Schlumberger Holdings Completion Assemblies
US6622794B2 (en) 2001-01-26 2003-09-23 Baker Hughes Incorporated Sand screen with active flow control and associated method of use
GB2372789B (en) 2001-02-28 2004-04-21 Petroleo Brasileiro Sa Method and device to allow a rigid pig to pass into a flow pipe which requires the use of a hollow flow-constricting device
NO314701B3 (no) 2001-03-20 2007-10-08 Reslink As Stromningsstyreanordning for struping av innstrommende fluider i en bronn
US6973481B2 (en) 2001-03-23 2005-12-06 Emailias Llc System and method for creating and managing forwarding email address
NO313895B1 (no) 2001-05-08 2002-12-16 Freyer Rune Anordning og fremgangsmÕte for begrensning av innströmning av formasjonsvann i en brönn
US6837308B2 (en) 2001-08-10 2005-01-04 Bj Services Company Apparatus and method for gravel packing
US20030097412A1 (en) 2001-11-20 2003-05-22 Kingsum Chow Method and apparatus for forwarding electronic mail for disabled accounts
US7149780B2 (en) 2001-12-14 2006-12-12 Pitney Bowes Inc. Method for determining e-mail address format rules
US6675891B2 (en) 2001-12-19 2004-01-13 Halliburton Energy Services, Inc. Apparatus and method for gravel packing a horizontal open hole production interval
US7096945B2 (en) 2002-01-25 2006-08-29 Halliburton Energy Services, Inc. Sand control screen assembly and treatment method using the same
FR2845617B1 (fr) 2002-10-09 2006-04-28 Inst Francais Du Petrole Crepine a perte de charge controlee
US20040140089A1 (en) 2003-01-21 2004-07-22 Terje Gunneroed Well screen with internal shunt tubes, exit nozzles and connectors with manifold
WO2004094784A2 (en) 2003-03-31 2004-11-04 Exxonmobil Upstream Research Company A wellbore apparatus and method for completion, production and injection
US6976542B2 (en) 2003-10-03 2005-12-20 Baker Hughes Incorporated Mud flow back valve
US20050082060A1 (en) 2003-10-21 2005-04-21 Ward Stephen L. Well screen primary tube gravel pack method
MXPA05000401A (es) 2004-01-09 2005-07-12 Carnegie Inst Of Washington Gametofito 1 indeterminado (ig1), mutaciones de ig1, ortologos de ig1 y usos del mismo.
US7290606B2 (en) 2004-07-30 2007-11-06 Baker Hughes Incorporated Inflow control device with passive shut-off feature
US7409999B2 (en) 2004-07-30 2008-08-12 Baker Hughes Incorporated Downhole inflow control device with shut-off feature
US7322412B2 (en) 2004-08-30 2008-01-29 Halliburton Energy Services, Inc. Casing shoes and methods of reverse-circulation cementing of casing
WO2006029019A2 (en) 2004-09-03 2006-03-16 Baker Hughes Incorporated Method of removing an invert emulsion filter cake after the drilling process using a single phase microemulsion
US20070174636A1 (en) * 2005-02-23 2007-07-26 Robert Raja Methods, systems, and apparatus for encrypting e-mail
US8011438B2 (en) 2005-02-23 2011-09-06 Schlumberger Technology Corporation Downhole flow control with selective permeability
NO324906B1 (no) 2005-05-10 2008-01-02 Abb Research Ltd Fremgangsmåte og system for forbedret regulering av strømningslinje
US7407007B2 (en) 2005-08-26 2008-08-05 Schlumberger Technology Corporation System and method for isolating flow in a shunt tube
US8393398B2 (en) 2005-09-19 2013-03-12 Bp Exploration Operating Company Limited Device for controlling slugging
US7523787B2 (en) 2005-11-18 2009-04-28 Halliburton Energy Services, Inc. Reverse out valve for well treatment operations
EA013376B1 (ru) 2006-02-03 2010-04-30 Эксонмобил Апстрим Рисерч Компани Способ эксплуатации скважины
US7958939B2 (en) 2006-03-24 2011-06-14 Exxonmobil Upstream Research Co. Composition and method for producing a pumpable hydrocarbon hydrate slurry at high water-cut
MX345785B (es) 2006-04-03 2017-02-15 Exxonmobil Upstream Res Company * Método de sondeo y aparato para el control de afluencia y arena durante las operaciones de pozo.
US8755679B2 (en) 2006-04-05 2014-06-17 Horiba Stec, Co., Ltd. Liquid material vaporizer
US7708068B2 (en) 2006-04-20 2010-05-04 Halliburton Energy Services, Inc. Gravel packing screen with inflow control device and bypass
US8453746B2 (en) 2006-04-20 2013-06-04 Halliburton Energy Services, Inc. Well tools with actuators utilizing swellable materials
US20080035330A1 (en) 2006-08-10 2008-02-14 William Mark Richards Well screen apparatus and method of manufacture
US7661476B2 (en) 2006-11-15 2010-02-16 Exxonmobil Upstream Research Company Gravel packing methods
CA2669007C (en) 2006-11-15 2012-12-04 Exxonmobil Upstream Research Company Wellbore method and apparatus for completion, production and injection
US8485265B2 (en) 2006-12-20 2013-07-16 Schlumberger Technology Corporation Smart actuation materials triggered by degradation in oilfield environments and methods of use
US7900705B2 (en) 2007-03-13 2011-03-08 Schlumberger Technology Corporation Flow control assembly having a fixed flow control device and an adjustable flow control device
US7828067B2 (en) 2007-03-30 2010-11-09 Weatherford/Lamb, Inc. Inflow control device
US20080283238A1 (en) 2007-05-16 2008-11-20 William Mark Richards Apparatus for autonomously controlling the inflow of production fluids from a subterranean well
US7789145B2 (en) 2007-06-20 2010-09-07 Schlumberger Technology Corporation Inflow control device
US7918276B2 (en) * 2007-06-20 2011-04-05 Schlumberger Technology Corporation System and method for creating a gravel pack
US20090101354A1 (en) 2007-10-19 2009-04-23 Baker Hughes Incorporated Water Sensing Devices and Methods Utilizing Same to Control Flow of Subsurface Fluids
US20090140133A1 (en) 2007-11-29 2009-06-04 Halliburton Energy Services, Inc. Pipeline pig and method for irradiation of bacteria in a pipeline
US8474535B2 (en) 2007-12-18 2013-07-02 Halliburton Energy Services, Inc. Well screen inflow control device with check valve flow controls
US7712529B2 (en) * 2008-01-08 2010-05-11 Halliburton Energy Services, Inc. Sand control screen assembly and method for use of same
RU2010137974A (ru) 2008-02-14 2012-03-20 Шлюмбергер Текнолоджи Б.В. (Nl) Клапанное устройство для управления притоком
US7866383B2 (en) 2008-08-29 2011-01-11 Halliburton Energy Services, Inc. Sand control screen assembly and method for use of same
US7814973B2 (en) 2008-08-29 2010-10-19 Halliburton Energy Services, Inc. Sand control screen assembly and method for use of same
US20100059232A1 (en) * 2008-09-05 2010-03-11 Schlumberger Technology Corporation System and method for retaining an element
US7987909B2 (en) 2008-10-06 2011-08-02 Superior Engery Services, L.L.C. Apparatus and methods for allowing fluid flow inside at least one screen and outside a pipe disposed in a well bore
US8146662B2 (en) 2009-04-08 2012-04-03 Halliburton Energy Services, Inc. Well screen assembly with multi-gage wire wrapped layer
US8256510B2 (en) 2009-08-12 2012-09-04 Halliburton Energy Services, Inc. Control screen assembly
EP2333235A1 (en) 2009-12-03 2011-06-15 Welltec A/S Inflow control in a production casing
US20110139465A1 (en) * 2009-12-10 2011-06-16 Schlumberger Technology Corporation Packing tube isolation device
US8479822B2 (en) 2010-02-08 2013-07-09 Summit Downhole Dynamics, Ltd Downhole tool with expandable seat
US8752629B2 (en) 2010-02-12 2014-06-17 Schlumberger Technology Corporation Autonomous inflow control device and methods for using same
GB2490457B (en) 2010-02-22 2013-05-01 Schlumberger Holdings Method of gravel packing multiple zones with isolation
US8230731B2 (en) 2010-03-31 2012-07-31 Schlumberger Technology Corporation System and method for determining incursion of water in a well
US8316952B2 (en) 2010-04-13 2012-11-27 Schlumberger Technology Corporation System and method for controlling flow through a sand screen
WO2011159523A2 (en) 2010-06-14 2011-12-22 Schlumberger Canada Limited Method and apparatus for use with an inflow control device
US8511381B2 (en) 2010-06-30 2013-08-20 Schlumberger Technology Corporation High solids content slurry methods and systems
GB2482158B (en) 2010-07-22 2016-08-10 Weatherford Uk Ltd Flow control apparatus
US9267360B2 (en) 2011-04-01 2016-02-23 Schlumberger Technology Corporation Premium mesh screen
CA2838552C (en) 2011-07-12 2016-05-03 Weatherford/Lamb, Inc. Multi-zone screened frac system
US20130081800A1 (en) 2011-10-03 2013-04-04 Edvin Eimstad Riisem Screen assembly and methods of use
AU2011378772B2 (en) 2011-10-14 2016-05-05 Halliburton Energy Services, Inc. Well screen with extending filter
US20130139465A1 (en) 2011-12-02 2013-06-06 Gerry D. Kuryk Deck bracket
US9187991B2 (en) 2012-03-02 2015-11-17 Halliburton Energy Services, Inc. Downhole fluid flow control system having pressure sensitive autonomous operation
BR112014027877B1 (pt) 2012-05-10 2021-03-02 Halliburton Energy Services, Inc arranjo e peneira desidratadora
US9725985B2 (en) 2012-05-31 2017-08-08 Weatherford Technology Holdings, Llc Inflow control device having externally configurable flow ports
US8893789B2 (en) 2012-06-11 2014-11-25 Halliburtion Energy Services, Inc. Shunt tube connection assembly and method
US9273537B2 (en) 2012-07-16 2016-03-01 Schlumberger Technology Corporation System and method for sand and inflow control
US8960287B2 (en) * 2012-09-19 2015-02-24 Halliburton Energy Services, Inc. Alternative path gravel pack system and method
EP2956616A4 (en) 2013-02-15 2017-03-01 Halliburton Energy Services, Inc. Ball check valve integration to icd
EP3025020A4 (en) 2013-07-25 2017-03-22 Services Pétroliers Schlumberger Sand control system and methodology
US10060230B2 (en) 2013-10-30 2018-08-28 Halliburton Energy Services, Inc. Gravel pack assembly having a flow restricting device and relief valve for gravel pack dehydration
BR102013030571A2 (pt) 2013-11-28 2016-09-20 Petróleo Brasileiro S A Petrobras sistema avançado de controle automático para minimização de golfadas
US9771780B2 (en) 2014-01-14 2017-09-26 Schlumberger Technology Corporation System and methodology for forming gravel packs
EP3137729A4 (en) 2014-04-28 2017-12-20 Services Pétroliers Schlumberger System and method for gravel packing a wellbore
US10227849B2 (en) 2016-05-27 2019-03-12 Schlumberger Technology Corporation System and methodology for facilitating gravel packing operations
RU2638236C1 (ru) 2016-07-21 2017-12-12 Шлюмберже Текнолоджи Б.В. Способ предотвращения формирования пробкового режима течения газожидкостной смеси в непрямолинейной скважине или трубопроводе

Also Published As

Publication number Publication date
AU2014293014A1 (en) 2016-02-11
CA2918791A1 (en) 2015-01-29
US20150027700A1 (en) 2015-01-29
SG11201600444PA (en) 2016-02-26
AU2014293014B2 (en) 2018-05-17
US10808506B2 (en) 2020-10-20
WO2015013582A1 (en) 2015-01-29
EP3025020A4 (en) 2017-03-22
EP3025020A1 (en) 2016-06-01

Similar Documents

Publication Publication Date Title
EA201690281A1 (ru) Система и способы борьбы с пескопроявлением
MY168198A (en) Well screen with extending filter
EA201892084A1 (ru) Способы и системы для обработки клеточной культуры
EA201790648A1 (ru) Расходомер кориолиса, имеющий расходомерную трубу с компенсированным перепадом давления
EA201492042A1 (ru) Система управления потоком
SA517381668B1 (ar) وسيلة للتحكم في التدفق الداخل
EP2941526A4 (en) TURBINE PRESSURE SYSTEM FOR BORING LIQUID FLOW CONTROL
DK3204094T3 (da) Fluidledningssamling med gasopfangningsfilter i fluidstrømningsbanen
EA202090686A2 (ru) Система отделения твердых частиц, отмывки и отбора проб
GB2534015A (en) Collecting and removing condensate from a gas extraction system
EA201690289A1 (ru) Система и способы борьбы с пескопроявлением
MX365053B (es) Sistema de filtracion y metodo para limpiar el aire de admision de una turbina de gas.
MX2015006668A (es) Dispositivo de control de flujo de entrada distribuido.
EA201690929A1 (ru) Канализационная система и способ управления ею
GB2534784A (en) System and method for mud circulation
PH12018550094A1 (en) Filtration device
GB2543237A (en) Well construction real-time telemetry system
BR112014030656A2 (pt) dispositivo de ingresso de montagem de tubo de derivação
EA201890275A1 (ru) Системы двухпросветных и коаксиальных дыхательных контуров, имеющие порт для измерения давления в легких и водосборник закрытой системы, который может быть опустошен посредством инъектора
GB2541597A (en) Downhole system with filtering and method
MX2015009860A (es) Separacion de centrifuga con poste extendido.
GB2538162A (en) Flow rings for regulating flow in autonomous inflow control device assemblies
GB2573699A (en) Tapered fluidic diode for use as an autonomous inflow control device (AICD)
EA201590894A1 (ru) Система многозонного гидроразрыва пласта, оборудованная фильтрами
MX2014014666A (es) Ensamble deflector de entrada para un interceptor en linea.