In the estimation of the CO 2 storage capacity in both waterflooding and CO 2 flooding oil reservoirs, theoretical and effective storage capacities can be obtained by the material balance and analogy methods. The theoretical storage capacity represents the physical limit of what the reservoir system
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The type of aquifer significantly impacts its storage coefficient. For example, unconfined aquifers generally have a higher storage coefficient due to their large pore spaces, allowing them to
We present herein a numerical modelling study on the CO 2 storage capacity in depleted gas reservoirs. First, we show a simple volumetric equation that gives the CO 2 storage capacity in a depleted gas reservoir,
Storage coefficient of an aquifer is the volume of water discharged from a unit prism, i.e., a vertical column of aquifer standing on a unit area (1 m 2) as water level (piezometric level in
The low comprehensive compressibility coefficient characteristic of fracture-vuggy reservoirs often leads to imprecise dynamic reserve calculations. This study introduces a novel method for estimating dynamic
storage capacity in depleted gas reservoir with water drive is analyzed. A method to estimate the CO 2 storage capacity considering the CO 2 solubility in water is developed. The method is an
The Yaha condensate gas field is a condensate gas reservoir with high condensate oil. Since the anti-condensation phenomenon will occur when the pressure is lower than the dew point
Regional estimates of hydrogen storage capacities in porous rocks currently rely on uncertain assumptions of cushion gas requirements. This paper describes an open-source
<p>Geological storage of CO<sub>2</sub> in depleted oil and gas reservoirs is approved due to its advantages, such as strong storage capacity, good sealing performance,
Calculation method of CO 2 storage capacity in reservoir can be determined mainly by the material balance and analogy methods, for which the key parameters are to be obtained by reservoir numerical simulation or empirical methods.
Estimation of the CO2 storage capacity in depleted oil and gas reservoirs is straightforward and is based on recoverable reserves, reservoir properties and in situ CO2 characteristics.
Regardless of the reservoir heterogeneity, if a reservoir is subjected to a weak or moderate aquifer support, the volumetric equation provides an estimate of the CO 2 storage capacity as structurally trapped gas within 1% of that estimated from numerical simulations.
According to the reports of IEA (International Energy Agency) and IPCC (Intergovernmental Panel on Climate Change), the CO 2 storage capacity in oil and gas reservoirs is almost 920 Gt in the world. It is a very huge CO 2 storage capacity. Since 1990, many scientists have published many evaluation papers about the CO 2 storage.
In the estimation of the CO 2 storage ca- pacity in both waterflooding and CO 2 flooding oil reservoirs, theoretical and effective storage capacities can be obtained by the material balance and analogy methods. The theoretical storage capacity represents the physical limit of what the reservoir system can accept.
In Eq. 1, CO 2 theoretical storage capacity consists of three parts, i.e. the part stored by structural space (including bond space), the part dissolved in water and the part dissolved in crude oil. 2.1.2 Calculation method of theoretical storage capacity for co2 flooding reservoir CO 2 -EOR technology is used in the USA more than other countries.
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