Preliminary reservoir model of enhanced coalbed methane (ECBM) in a subbituminous coal seam, Huntly Coalfield, New Zealand

Zarrouk, Sadiq J.; Moore, Tim A.

doi:10.1016/j.coal.2008.08.007

Cited by 39 publications

(14 citation statements)

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“…Among these possible reservoirs, unmineable coal seams have a particular advantage, since in the process of injection, CO 2 displaces methane that can be produced as a by‐product in CO 2 sequestration technology. This scenario, also known as enhanced coal bed methane (ECBM) recovery [ Mazzotti et al , 2009], is considered the most favorable because of its economic incentives [ Zarrouk and Moore , 2009]. ECBM recovery utilizes the preferential adsorption capacity of coal for carbon dioxide over methane [ Busch et al , 2006; Esteves et al , 2008; Kurniawan et al , 2006; Majewska and Ziętek , 2008; Ottiger et al , 2008a], and it has been tested in a number of field projects [ Reeves , 2004; van Bergen et al , 2009b; Wong et al , 2007].…”

Section: Introductionmentioning

confidence: 99%

“…Potential storage capacity of carbon dioxide in coal is well documented in the literature [ Bae and Bhatia , 2006; Day et al , 2008b, 2008c; Fitzgerald et al , 2003; Gürdal and Yalçın , 2000; Gruszkiewicz et al , 2009; He et al , 2010; Krooss et al , 2002; Kurniawan et al , 2006; Liu and Smirnov , 2008, 2009; Mares et al , 2009; Mastalerz et al , 2004, 2008; Milewska ‐ Duda et al , 2000; Mohammad et al , 2009; Ottiger et al , 2006, 2008a; Radovic et al , 1997; Sakurovs et al , 2007; 2008; Sınayuç and Gümrah , 2009; Yao et al , 2009; Zarrouk and Moore , 2009]. Numerous experimental techniques, such as the gravimetric‐chromatographic method [ Ottiger et al , 2006, 2008a], the gravimetric sorption method [ Bae and Bhatia , 2006; Day et al , 2008b; Sakurovs et al , 2008], the isothermal adsorption method [ Mastalerz et al , 2008; Yao et al , 2009], the small‐angle neutron scattering method [ He et al , 2010; Mares et al , 2009], and the volumetric method [ Gürdal and Yalçın , 2000; Gruszkiewicz et al , 2009; Krooss et al , 2002; Mastalerz et al , 2004; Radovic et al , 1997], were adopted to investigate CO 2 adsorption capacity of coal.…”

Section: Introductionmentioning

confidence: 99%

“…Numerous experimental techniques, such as the gravimetric‐chromatographic method [ Ottiger et al , 2006, 2008a], the gravimetric sorption method [ Bae and Bhatia , 2006; Day et al , 2008b; Sakurovs et al , 2008], the isothermal adsorption method [ Mastalerz et al , 2008; Yao et al , 2009], the small‐angle neutron scattering method [ He et al , 2010; Mares et al , 2009], and the volumetric method [ Gürdal and Yalçın , 2000; Gruszkiewicz et al , 2009; Krooss et al , 2002; Mastalerz et al , 2004; Radovic et al , 1997], were adopted to investigate CO 2 adsorption capacity of coal. In addition, various theoretical methods were employed, including reservoir simulations (e.g., ECBM‐TOUGH2) [ Zarrouk and Moore , 2009], the Toth equation [ Bae and Bhatia , 2006], the lattice density functional theory (DFT) model [ Ottiger et al , 2008a], the Denton‐Ashcroft DFT model [ Kurniawan et al , 2006], Monte Carlo (MC) simulation [ Kurniawan et al , 2006; Sınayuç and Gümrah , 2009], the modified Dubinin‐Radushkevich (DR) model [ Day et al , 2008b, 2008c; He et al , 2010; Sakurovs et al , 2007; 2008], the simplified local‐density Peng‐Robinson (SLD‐PR) model [ Fitzgerald et al , 2003; Mohammad et al , 2009], the multiple sorption model (MSM) [ Milewska ‐ Duda et al , 2000], and variable saturation models [ Liu and Smirnov , 2008; 2009]. CO 2 adsorption capacity is influenced by many factors, such as porosity, lithotype, rank, and water content [ Zarrouk and Moore , 2009].…”

Section: Introductionmentioning

confidence: 99%

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Effects of CO₂adsorption on coal deformation during geological sequestration

Yang

Lin

et al. 2011

J. Geophys. Res.

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Adsorption‐induced deformation of coal during carbon dioxide sequestration in coal seams at elevated pressures and temperatures is studied with the quenched solid density functional theory (QSDFT) model. Two types of deformation behaviors in pores of different sizes can be identified from the dependence of the solvation pressure on the CO2 pressure. The smallest micropores (<0.5 nm, at 360 K) monotonically expand as the pressure increases. The larger pores (>0.5 nm) tend to contract at low pressures (1–10 MPa); however, this low‐pressure contraction is followed by expansion as the pressure increases further. Comparison with methane adsorption under the same geological conditions shows that the adsorption capacity of carbon dioxide is larger than that of methane. The difference in volumetric strain induced by adsorption of carbon dioxide and methane is most pronounced for micropores (≤2 nm), where the volumetric strain difference can be as large as 1.7% in the case of a 0.7 nm pore at 100 m depth, which could cause a significant reduction in permeability of the reservoir due to coal deformation. The contrast between the adsorption stress, resulting from the displacement of methane by CO2, decreases to 0.6% at 5 nm pores with increasing pore size and gradually diminishes in larger mesopores. The conclusions of the QSDFT model are validated by comparison with experimental data from the available literature and can be used for quantitative estimates of the effects of coal deformation.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of CO₂adsorption on coal deformation during geological sequestration

Yang

Lin

et al. 2011

J. Geophys. Res.

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“…Saghafi [5] investigated the CO 2 -ECBM potential in the Australian coalbeds. Similar studies were conducted for CO 2 storage in potential coal beds located in various countries [6][7][8][9][10]. Busch and Gensterblum [11] presented a review article on CO 2 -ECBM process and focused mainly on the adsorption mechanisms involved.…”

Section: Introductionmentioning

confidence: 89%

Application case study of enhanced coal bed methane recovery process in thar coal fields

Zahid

2017

Env Prog and Sustain Energy

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Enhanced coal bed methane recovery (ECBM) process is an important developing technology because of its dual advantage, i.e., producing methane gas and sequestering CO2 at the same time. CO2 have been used for enhanced oil recovery (EOR) for more than five decades but available storage sites for EOR are only limited to oil rich countries. Pakistan has one of the largest coal reserves in the world accounting to more than 185 billion tons. In this study, CO2 sequestration in the coalbeds of Thar coal field located in the South of Pakistan is explored from the technical and economical point of view. Potential CO2 storage capacity and methane gas‐in‐place has been calculated for the Thar coal fields. Next, an economic analysis has been performed to evaluate the cost of CO2 storage and to explore any economic benefit from the methane production. Usually, coal reservoirs are saturated with water, hence water production along with methane is inevitable. This study analyzed various water treatment methods and recommended shallow re‐injection technology to be the most suitable for the Thar coal ECBM process. In addition, carbon balance has been investigated to calculate the CO2 avoided during the ECBM process. Finally, a sensitivity analysis has been performed on some of the important design variables in order to analyze their effect on the cost of CO2 storage. © 2017 American Institute of Chemical Engineers Environ Prog, 37: 900–911, 2018

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“…Simulation Tool. TOUGH2 is widely used to simulate nonisothermal multiphase and multicomponent flow for CO 2 geological sequestration (e.g., [12,25,26] 3.2. Geometry, Grid Discretization, and Parameters.…”

Section: Model Setupmentioning

confidence: 99%

Preliminary Numerical Modeling of CO₂ Geological Storage in the Huangcaoxia Gas Reservoir in the Eastern Sichuan Basin, China

Lei

Zhang

2019

Geofluids

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Depleted gas reservoirs are important potential sites for CO 2 geological sequestration due to their proven integrity and safety, wellknown geological characteristics, and existing infrastructures and wells built for natural gas production. The Sichuan Basin has a large number of gas fields in which approximately 5:89 × 10 9 tons of CO 2 can be stored. The Huangcaoxia gas field has the best opportunity in the eastern Sichuan Basin for a pilot project of CO 2 sequestration due to its relatively large storage capacity and the nearly depleted state. A coupled thermal-hydrodynamic model including faults is built based on the geological and hydrogeological conditions in the Huangcaoxia gas field. The results of the numerical simulations show that the downhole temperature is above 80°C at a downhole pressure of 14 MPa under the constraint of temperature drop in the reservoir due to the strong Joule-Thomson effect. The corresponding injection pressure and temperature at the wellhead are 10.5 MPa and 60°C, respectively. The sizes of the pressure and CO 2 plumes after an injection of 10 years are 18 km and 5 km, respectively. The zone affected by temperature change is very small, being about 1-2 km away from the injection well. The injection rate in the injection well Cao 31 averages 6.89 kg/s (21:73 × 10 4 tons/a). For a commercial-scale injection, another four wells (Cao 9, Cao 30, Cao 6, and Cao 22) can be combined with the Cao 31 well for injection, approaching an injection rate of 35 kg/s (1:10 × 10 6 tons/a). Both the pressure and temperature of CO 2 injection decrease with the increasing depleted pressure in the gas reservoir when the latter is below 6 MPa. With the technique of CO 2 -enhanced gas recovery (CO 2 -EGR), the CO 2 injection rate is improved and approximately 1:58 × 10 7 kg of gas can be produced during a studied time period of 10 years.

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Preliminary reservoir model of enhanced coalbed methane (ECBM) in a subbituminous coal seam, Huntly Coalfield, New Zealand

Cited by 39 publications

References 18 publications

Effects of CO₂adsorption on coal deformation during geological sequestration

Effects of CO₂adsorption on coal deformation during geological sequestration

Application case study of enhanced coal bed methane recovery process in thar coal fields

Preliminary Numerical Modeling of CO₂ Geological Storage in the Huangcaoxia Gas Reservoir in the Eastern Sichuan Basin, China

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Preliminary reservoir model of enhanced coalbed methane (ECBM) in a subbituminous coal seam, Huntly Coalfield, New Zealand

Cited by 39 publications

References 18 publications

Effects of CO2adsorption on coal deformation during geological sequestration

Effects of CO2adsorption on coal deformation during geological sequestration

Application case study of enhanced coal bed methane recovery process in thar coal fields

Preliminary Numerical Modeling of CO2 Geological Storage in the Huangcaoxia Gas Reservoir in the Eastern Sichuan Basin, China

Contact Info

Product

Resources

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Effects of CO₂adsorption on coal deformation during geological sequestration

Effects of CO₂adsorption on coal deformation during geological sequestration

Preliminary Numerical Modeling of CO₂ Geological Storage in the Huangcaoxia Gas Reservoir in the Eastern Sichuan Basin, China