Impact of Carbon Dioxide Sequestration in Gas/Condensate Reservoirs

Ramharack, Richard M.; Aminian, K.; Ameri, S.

doi:10.2118/139083-ms

Cited by 6 publications

(3 citation statements)

References 5 publications

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“…The literature tends to focus either on maximising incremental production or on CO 2 storage capacity. However, simultaneous enhanced gas recovery (EGR), enhanced condensate recovery (ECR) and CO 2 storage may be feasible (Oldenburg, 2003;Oldenburg et al, 2004;Ramharack et al, 2010;Clemens et al, 2010). Following the European Trading Scheme, commercialising simultaneous EGR, EGR and CO 2 storage for all gas reservoirs is now being considered.…”

mentioning

confidence: 99%

A Techno-Economic Analysis of Coupling Enhanced Hydrocarbon Recovery and CO2 Storage in Gas Condensate Reservoirs

Tan¹,

Allinson²,

Cinar³

2013

EER

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Coupling enhanced gas (EGR) and condensate (ECR) recoveries with CO₂ storage could potentially maintain fossil fuel supply and reduce CO₂ emissions to the atmosphere. This paper evaluates the techno-economic potential of simultaneous EGR, ECR and CO₂ storage in gas condensate reservoirs. We demonstrate that, for a closed gas condensate reservoir, injecting CO₂ later in production life is more profitable than early injection. This is because it delays CO₂ breakthrough at the production wells while enhancing gas and condensate production. In contrast, for a bottom-water drive gas condensate reservoir, we find that early CO₂ injection minimises water influx from the underlying aquifer. This maximises incremental gas and condensate production and CO₂ storage in the reservoir.

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confidence: 99%

A Techno-Economic Analysis of Coupling Enhanced Hydrocarbon Recovery and CO2 Storage in Gas Condensate Reservoirs

Tan¹,

Allinson²,

Cinar³

2013

EER

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“…al. [14] investigated the impact of CO 2 on gas condensate and found that drying effect can affect the phase diagram of gas condensate as shown in Figure 3.6. The shrinking of the two-phase envelope is reduction of cricondentherm and cricondenbar when CO 2 concentration increases.…”

Section: Fluid Composition Change By Flooding Processmentioning

confidence: 99%

“…14 Summarized results for different injection rates of combined gas dumpflood from 2 PV source gas reservoir with gas injection for well pattern 1…”

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confidence: 99%

Evaluation of Combined Gas Dumpflood with Gas Injection into Gas Condensate Reservoir

Phongtongpasuk

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Conventional gas injection is an improved condensate recovery technique by injecting the gas from surface to displace condensate and maintain the reservoir pressure above the dewpoint pressure as long as possible. However, this method requires large volume of gas to be injected into the reservoir and incurs high capital and operating costs. Gas dumpflood is a condensate recovery technique achieved by allowing the gas from an underlying source gas reservoir to flow through dumping well to displace condensate and maintain the reservoir pressure. Gas dumpflood has lower capital and operation cost. Nevertheless, some of the source gas reservoir is small and may not be enough to recover condensate effectively. In order to extract more condensate, combined gas dumpflood with gas injection should be applied. A reservoir model was built by using ECLIPSE300 compositional simulator to predict gas and condensate production under different production scenarios including natural depletion, conventional gas injection, gas dumpflood, and combined gas dumpflood with gas injection. Effects of well location, source gas reservoir size, and gas injection rate were investigated. If 0.5 PV (small) source gas reservoir is available, conventional gas injection is the most appropriate technique to recover condensate. If 1 PV (medium) source gas reservoir is available, combined gas dumpflood with 10 MMscf/d gas injection rate is more attractive. If 2 PV (large) source gas reservoir is available, gas dumpflood should be considered. If of all 0.5, 1, and 2 PV source gas reservoirs are present, gas dumpflood from 2 PV is the most attractive.

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Case Study of CO2-IGR and Storage in a Nearly Depleted Gas-condensate Reservoir in Taiwan

Shen

Hsieh

Tseng³

et al. 2014

Energy Procedia

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Impact of Carbon Dioxide Sequestration in Gas/Condensate Reservoirs

Cited by 6 publications

References 5 publications

A Techno-Economic Analysis of Coupling Enhanced Hydrocarbon Recovery and CO2 Storage in Gas Condensate Reservoirs

A Techno-Economic Analysis of Coupling Enhanced Hydrocarbon Recovery and CO2 Storage in Gas Condensate Reservoirs

Evaluation of Combined Gas Dumpflood with Gas Injection into Gas Condensate Reservoir

Case Study of CO2-IGR and Storage in a Nearly Depleted Gas-condensate Reservoir in Taiwan

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