Evaluating Potential CO2 Injection Capacity of Aquifers Based on Well Testing

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F16%3A00000175" target="_blank" >RIV/00025798:_____/16:00000175 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.earthdoc.org/publication/publicationdetails/?publication=85741" target="_blank" >http://www.earthdoc.org/publication/publicationdetails/?publication=85741</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3997/2214-4609.201601499" target="_blank" >10.3997/2214-4609.201601499</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Evaluating Potential CO2 Injection Capacity of Aquifers Based on Well Testing

Popis výsledku v původním jazyce

Well testing and Pressure Transient Analysis (PTA) are generally used for reservoir characterization. Matching analytical models to pressure and its derivative within PTA is similar to history matching in reservoir simulation. The ultimate goal of reservoir simulation is forecast, but forecast capabilities of PTA models are often underestimated. In this paper, we examine forecast capabilities of such models in application to CO2 storage in saline aquifers. Since the simplest way of characterizing aquifers is a shortterm water production or injection followed by well shut-in, such a well test is a basis for injection capacity evaluation. Assuming that a reservoir (PTA) model (analytical in the simplest case) can be assembled and matched to such a test, pressure build-up forecast for water injection may be simulated. The main focus of this paper is converting such forecast for water into the CO2 injection case. Using numerical simulations of synthetic and actual field cases, the ability to account for near wellbore CO2 banking in PTA models employing the well skin concept was confirmed. PTA models can provide a first evaluation of potential CO2 storage capacity requiring substantially less resources compared to conventional reservoir simulation. This evaluation may be further improved by full-field reservoir simulation.

Název v anglickém jazyce

Evaluating Potential CO2 Injection Capacity of Aquifers Based on Well Testing

Popis výsledku anglicky

Well testing and Pressure Transient Analysis (PTA) are generally used for reservoir characterization. Matching analytical models to pressure and its derivative within PTA is similar to history matching in reservoir simulation. The ultimate goal of reservoir simulation is forecast, but forecast capabilities of PTA models are often underestimated. In this paper, we examine forecast capabilities of such models in application to CO2 storage in saline aquifers. Since the simplest way of characterizing aquifers is a shortterm water production or injection followed by well shut-in, such a well test is a basis for injection capacity evaluation. Assuming that a reservoir (PTA) model (analytical in the simplest case) can be assembled and matched to such a test, pressure build-up forecast for water injection may be simulated. The main focus of this paper is converting such forecast for water into the CO2 injection case. Using numerical simulations of synthetic and actual field cases, the ability to account for near wellbore CO2 banking in PTA models employing the well skin concept was confirmed. PTA models can provide a first evaluation of potential CO2 storage capacity requiring substantially less resources compared to conventional reservoir simulation. This evaluation may be further improved by full-field reservoir simulation.

Druh

D - Stať ve sborníku

CEP obor

DB - Geologie a mineralogie

OECD FORD obor

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Projekt

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Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the 78th EAGE Conference and Exhibition Vienna 2016

ISBN

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ISSN

2214-4609

e-ISSN

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Počet stran výsledku

4

Strana od-do

29028-29031

Název nakladatele

EAGE

Místo vydání

Vídeň

Místo konání akce

Vídeň

Datum konání akce

1. 1. 2016

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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