Management of injected nitrogen into a gas condensate reservoir
This study investigates the means of deferring the breakthrough of injected N2 and alleviating the impact of such on production rates and specifications as well as minimizing the required changes to the gas processing facilities. This aimed at assisting the ongoing efforts to transfer the Cantarell...
- Autores:
-
Belhaj, Hadi
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2016
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/67626
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/67626
http://bdigital.unal.edu.co/68655/
- Palabra clave:
- 62 Ingeniería y operaciones afines / Engineering
Nitrogen injection
condensate reservoirs
alternatives to lean dry gas
gas reservoirs
nitrogen economics.
Inyección de nitrógeno
yacimientos de gas condensado
alternativas al gas seco pobre
yacimientos de gas
economía de nitrógeno.
- Rights
- openAccess
- License
- Atribución-NoComercial 4.0 Internacional
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dc.title.spa.fl_str_mv |
Management of injected nitrogen into a gas condensate reservoir |
title |
Management of injected nitrogen into a gas condensate reservoir |
spellingShingle |
Management of injected nitrogen into a gas condensate reservoir 62 Ingeniería y operaciones afines / Engineering Nitrogen injection condensate reservoirs alternatives to lean dry gas gas reservoirs nitrogen economics. Inyección de nitrógeno yacimientos de gas condensado alternativas al gas seco pobre yacimientos de gas economía de nitrógeno. |
title_short |
Management of injected nitrogen into a gas condensate reservoir |
title_full |
Management of injected nitrogen into a gas condensate reservoir |
title_fullStr |
Management of injected nitrogen into a gas condensate reservoir |
title_full_unstemmed |
Management of injected nitrogen into a gas condensate reservoir |
title_sort |
Management of injected nitrogen into a gas condensate reservoir |
dc.creator.fl_str_mv |
Belhaj, Hadi |
dc.contributor.author.spa.fl_str_mv |
Belhaj, Hadi |
dc.subject.ddc.spa.fl_str_mv |
62 Ingeniería y operaciones afines / Engineering |
topic |
62 Ingeniería y operaciones afines / Engineering Nitrogen injection condensate reservoirs alternatives to lean dry gas gas reservoirs nitrogen economics. Inyección de nitrógeno yacimientos de gas condensado alternativas al gas seco pobre yacimientos de gas economía de nitrógeno. |
dc.subject.proposal.spa.fl_str_mv |
Nitrogen injection condensate reservoirs alternatives to lean dry gas gas reservoirs nitrogen economics. Inyección de nitrógeno yacimientos de gas condensado alternativas al gas seco pobre yacimientos de gas economía de nitrógeno. |
description |
This study investigates the means of deferring the breakthrough of injected N2 and alleviating the impact of such on production rates and specifications as well as minimizing the required changes to the gas processing facilities. This aimed at assisting the ongoing efforts to transfer the Cantarell experience to Abu Dhabi, where large amounts of N2 gas will be generated and injected into a large gas condensate reservoir to partially substitute the recycling of lean gas. This will bring forward the opportunity to exploit lean gas by securing base load supplies before the start of reservoir blowdown, compared to the peak shaving approach currently practiced. Managing N2 breakthrough starts by better understanding the pattern at which N2 injection spreads into the gas accumulation. Based on the findings of initial subsurface and plant simulations carried out in 2008, N2 breakthrough in Abu Dhabi might be possibly deferred by segmenting the reservoir into a rich N2 region and lean N2 region. The approach assumes no thief zones will be faced and no channeling of N2 injected between the two regions is taking place. N2 is injected in the north region of the reservoir. The production of that region will be segregated and fed to a gas processing plant of lower NGL (natural gas liquid) recovery, which essentially takes longer time to start suffering the deterioration of residue gas (gas mixture resulted after separating NGL) quality. The residue gas use can be limited to re-injection where the effect of below specification LHV (Low Heat Value) would not be an issue. The rest of the reservoir feeds another gas processing plant of higher NGL recovery level from which an amount of residue gas equivalent to that of the injected N2 will be rerouted to the sales network. This scenario will significantly delay as well as downsize the requirement of a N2 rejection plant. There is technical and certainly economical advantage of deferring the installation of costly N2 rejection units. Such a requirement can be entirely eliminated if the sales gas specification can be relaxed considering blending with other gas streams of higher LHV, and in collaboration with gas customers, i.e. assessing their capability to tolerate feedstock of lower specifications. It must be noted that such school of thinking may not necessarily be eventually embraced. The chosen scenario will also depend on the final configuration, i.e., wells grouping and gas gathering, of the ongoing project. |
publishDate |
2016 |
dc.date.issued.spa.fl_str_mv |
2016-01-01 |
dc.date.accessioned.spa.fl_str_mv |
2019-07-03T04:42:35Z |
dc.date.available.spa.fl_str_mv |
2019-07-03T04:42:35Z |
dc.type.spa.fl_str_mv |
Artículo de revista |
dc.type.coar.fl_str_mv |
http://purl.org/coar/resource_type/c_2df8fbb1 |
dc.type.driver.spa.fl_str_mv |
info:eu-repo/semantics/article |
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info:eu-repo/semantics/publishedVersion |
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http://purl.org/coar/resource_type/c_6501 |
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http://purl.org/coar/version/c_970fb48d4fbd8a85 |
dc.type.content.spa.fl_str_mv |
Text |
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http://purl.org/redcol/resource_type/ART |
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http://purl.org/coar/resource_type/c_6501 |
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publishedVersion |
dc.identifier.issn.spa.fl_str_mv |
ISSN: 2248-8723 |
dc.identifier.uri.none.fl_str_mv |
https://repositorio.unal.edu.co/handle/unal/67626 |
dc.identifier.eprints.spa.fl_str_mv |
http://bdigital.unal.edu.co/68655/ |
identifier_str_mv |
ISSN: 2248-8723 |
url |
https://repositorio.unal.edu.co/handle/unal/67626 http://bdigital.unal.edu.co/68655/ |
dc.language.iso.spa.fl_str_mv |
spa |
language |
spa |
dc.relation.spa.fl_str_mv |
https://revistas.unal.edu.co/index.php/ingeinv/article/view/50319 |
dc.relation.ispartof.spa.fl_str_mv |
Universidad Nacional de Colombia Revistas electrónicas UN Ingeniería e Investigación Ingeniería e Investigación |
dc.relation.references.spa.fl_str_mv |
Belhaj, Hadi (2016) Management of injected nitrogen into a gas condensate reservoir. Ingeniería e Investigación, 36 (1). pp. 52-61. ISSN 2248-8723 |
dc.rights.spa.fl_str_mv |
Derechos reservados - Universidad Nacional de Colombia |
dc.rights.coar.fl_str_mv |
http://purl.org/coar/access_right/c_abf2 |
dc.rights.license.spa.fl_str_mv |
Atribución-NoComercial 4.0 Internacional |
dc.rights.uri.spa.fl_str_mv |
http://creativecommons.org/licenses/by-nc/4.0/ |
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info:eu-repo/semantics/openAccess |
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Atribución-NoComercial 4.0 Internacional Derechos reservados - Universidad Nacional de Colombia http://creativecommons.org/licenses/by-nc/4.0/ http://purl.org/coar/access_right/c_abf2 |
eu_rights_str_mv |
openAccess |
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application/pdf |
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Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ingeniería |
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Universidad Nacional de Colombia |
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https://repositorio.unal.edu.co/bitstream/unal/67626/1/50319-289775-1-PB.pdf https://repositorio.unal.edu.co/bitstream/unal/67626/2/50319-289775-1-PB.pdf.jpg |
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1814090207807406080 |
spelling |
Atribución-NoComercial 4.0 InternacionalDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Belhaj, Hadib63d43d0-e9f9-4fed-8b49-8d786b3fa1723002019-07-03T04:42:35Z2019-07-03T04:42:35Z2016-01-01ISSN: 2248-8723https://repositorio.unal.edu.co/handle/unal/67626http://bdigital.unal.edu.co/68655/This study investigates the means of deferring the breakthrough of injected N2 and alleviating the impact of such on production rates and specifications as well as minimizing the required changes to the gas processing facilities. This aimed at assisting the ongoing efforts to transfer the Cantarell experience to Abu Dhabi, where large amounts of N2 gas will be generated and injected into a large gas condensate reservoir to partially substitute the recycling of lean gas. This will bring forward the opportunity to exploit lean gas by securing base load supplies before the start of reservoir blowdown, compared to the peak shaving approach currently practiced. Managing N2 breakthrough starts by better understanding the pattern at which N2 injection spreads into the gas accumulation. Based on the findings of initial subsurface and plant simulations carried out in 2008, N2 breakthrough in Abu Dhabi might be possibly deferred by segmenting the reservoir into a rich N2 region and lean N2 region. The approach assumes no thief zones will be faced and no channeling of N2 injected between the two regions is taking place. N2 is injected in the north region of the reservoir. The production of that region will be segregated and fed to a gas processing plant of lower NGL (natural gas liquid) recovery, which essentially takes longer time to start suffering the deterioration of residue gas (gas mixture resulted after separating NGL) quality. The residue gas use can be limited to re-injection where the effect of below specification LHV (Low Heat Value) would not be an issue. The rest of the reservoir feeds another gas processing plant of higher NGL recovery level from which an amount of residue gas equivalent to that of the injected N2 will be rerouted to the sales network. This scenario will significantly delay as well as downsize the requirement of a N2 rejection plant. There is technical and certainly economical advantage of deferring the installation of costly N2 rejection units. Such a requirement can be entirely eliminated if the sales gas specification can be relaxed considering blending with other gas streams of higher LHV, and in collaboration with gas customers, i.e. assessing their capability to tolerate feedstock of lower specifications. It must be noted that such school of thinking may not necessarily be eventually embraced. The chosen scenario will also depend on the final configuration, i.e., wells grouping and gas gathering, of the ongoing project.Este estudio investiga los medios de diferir el paso de nitrógeno N2 inyectado y moderar su impacto en las tasas de producción y especificaciones, así como minimizar los cambios requeridos en las instalaciones de procesamiento de gases. El objetivo es contribuir a los esfuerzos en curso en la transferencia de experiencia de Cantarell a los campos de Abu Dabi, donde grandes cantidades de nitrógeno serán generadas e Inyectadas dentro de yacimientos de gas condensado para sustituir el reciclado de gas pobre. Esto permitirá extraer gas pobre asegurando su suministro base antes de comenzar el desfogue del yacimiento, en comparación con la técnica de “peak shaving” actualmente usada. La gestión del paso de nitrógeno N2 comienza por entender el patrón de propagación del N2 inyectado dentro del gas acumulado. En base a los resultados iniciales de las simulaciones de plantas y subsuelo llevadas a cabo en el 2008, el paso de nitrógeno en Abu Dabi puede ser posiblemente diferido dividiendo el yacimiento en zonas de gas N2 rico y gas N2 pobre. Este enfoque asume que no hay zonas de absorción ni conexión entre las dos zonas. El nitrógeno es inyectado en la parte norte del yacimiento, que es segmentada y alimentada por una planta de procesamiento y recuperación de gas natural líquido (GNL). Esto esencialmente hace que tarde más tiempo en empezar el deterioro del residuo de gas (mezcla del gas resultante después de la separación del GNL). El uso del residuo de gas puede ser limitado a la re-inyección donde el efecto por debajo del poder calorífico inferior (PCI) no es un impedimento. El resto del yacimiento alimenta otra planta de procesamiento de gas de alta recuperación de GNL, de la cual una cantidad de residuo de gas equivalente al nitrógeno inyectado será redirigido a la red de ventas. Este escenario significara un retardo así como una reducción del requerimiento de una planta de re-inyección de nitrógeno. Ciertamente hay ventajas técnicas y económicas en diferir la instalación de unidades de re-inyección de nitrógeno. Tal requerimiento puede ser enteramente eliminado si las especificaciones de venta de gas se rebajan considerando el uso de mezclas con otros gases de alto PCI y gases clientes, es decir, evaluando su capacidad de tolerar materia prima de bajas especificaciones. Es de notar que tal escuela de pensamiento podría ser no necesariamente aceptada. El escenario elegido dependerá de la configuración final (grupo de pozos y acopio de gases) del proyecto en cuestión.application/pdfspaUniversidad Nacional de Colombia - Sede Bogotá - Facultad de Ingenieríahttps://revistas.unal.edu.co/index.php/ingeinv/article/view/50319Universidad Nacional de Colombia Revistas electrónicas UN Ingeniería e InvestigaciónIngeniería e InvestigaciónBelhaj, Hadi (2016) Management of injected nitrogen into a gas condensate reservoir. Ingeniería e Investigación, 36 (1). pp. 52-61. ISSN 2248-872362 Ingeniería y operaciones afines / EngineeringNitrogen injectioncondensate reservoirsalternatives to lean dry gasgas reservoirsnitrogen economics.Inyección de nitrógenoyacimientos de gas condensadoalternativas al gas seco pobreyacimientos de gaseconomía de nitrógeno.Management of injected nitrogen into a gas condensate reservoirArtículo de revistainfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1http://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/ARTORIGINAL50319-289775-1-PB.pdfapplication/pdf881989https://repositorio.unal.edu.co/bitstream/unal/67626/1/50319-289775-1-PB.pdff2600a3868f5dbde52f8e882db7ea8b3MD51THUMBNAIL50319-289775-1-PB.pdf.jpg50319-289775-1-PB.pdf.jpgGenerated Thumbnailimage/jpeg8817https://repositorio.unal.edu.co/bitstream/unal/67626/2/50319-289775-1-PB.pdf.jpg781a728888bbc018256c9747ec462fe0MD52unal/67626oai:repositorio.unal.edu.co:unal/676262024-05-22 23:34:02.662Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co |