CO<sub>2</sub> storage in coal to enhance coalbed methane recovery: a review of field experiments in China

Pan, Zhejun; Ye, Jianping; Zhou, Fang; Tan, Yunliang; Connell, Luke D.; Fan, Jingjing

doi:10.1080/00206814.2017.1373607

Cited by 146 publications

(88 citation statements)

References 51 publications

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“…The basin supports a major commercial coalbed methane (CBM) industry and has been the site of multiple CO 2 -injection pilots for enhanced CBM recovery. 5,[35][36][37][38] The Qinshui Basin underwent a range of heterogeneous, vertical tectonic movements since the Hercynian, and ultimately evolved into a fault-bound basin during the late Paleozoic. The Qinshui Basin contains a NNE-trending synclinorium with essentially symmetric flanks and minor faults.…”

Section: Geological Settingmentioning

confidence: 99%

“…Geological storage of CO 2 in deep unmineable coal deposits for enhanced CH 4 recovery (CO 2 -ECBM) has long been considered an option for decreasing greenhouse gas emissions, while concurrently increasing natural gas production. [1][2][3][4][5][6] Compared to other CO 2 containment mechanisms, adsorption containment performs enigmatically in porous coal networks due to its preferential attraction toward the coal matrix. [7][8][9] Recent investigations determined that CO 2 adsorption is larger compared to methane absorption at all pressure ranges.…”

Section: Introductionmentioning

confidence: 99%

“…8,26 Many previous studies have performed CH 4 adsorption experiments at different pressure-temperature conditions and discussed CO 2 injection implementations in the Qinshui Basin. 5,[32][33][34][35] However, supercritical CO 2 adsorption in the Qinshui anthracite and the effect of CO 2 density-temperature on reservoir conditions are not well understood.…”

Section: Introductionmentioning

confidence: 99%

“…[24][25][26][27][28][29] A crossover of adsorption curves at different temperatures is clearly illustrated, but its interpretations are still controversial, although some scholars consider the adsorption temperature dependence to be attributable to the tendency of a gas molecule to cling to pore surfaces in pores of different sizes. 5,[32][33][34][35] However, supercritical CO 2 adsorption in the Qinshui anthracite and the effect of CO 2 density-temperature on reservoir conditions are not well understood. 8,26 Many previous studies have performed CH 4 adsorption experiments at different pressure-temperature conditions and discussed CO 2 injection implementations in the Qinshui Basin.…”

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confidence: 99%

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Supercritical CO₂ adsorption in a simulated deep coal reservoir environment, implications for geological storage of CO₂ in deep coals in the southern Qinshui Basin, China

Han

Sang

Liang

et al. 2019

Energy Science & Engineering

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CO2 sequestration in deep, unmineable coal seams has been proposed as a method for offsetting increasing anthropogenic CO2 emissions, while increasing natural gas production. Through laboratory experiments on gaseous/supercritical CO2 adsorption using a manometric procedure, we investigated anomalies in supercritical CO2 adsorption and determined CO2 density‐temperature effects on adsorption capacity, which are closely related to the CO2 storage potential in deep coal reservoirs. Results indicate that the revised Dubinin‐Radushkevich (D‐R) model can fit supercritical CO2 adsorption data well, and there is a significant difference between excess and absolute adsorption capacity as CO2 density increases. In the supercritical isochore, a rapid change in CO2 density results in a transition from Langmuir‐like monolayer adsorption to multilayer adsorption, and there is an unsaturated multilayer system during this transition. Above the temperature at the cross point, the increasing of density decreases, and a negative dependence on temperature causes a gradual decrease in adsorption capacity. Coal reservoirs near the boundary between the supercritical isochore stage and fully supercritical CO2 stage should be the prime target for geological storage of CO2. In order to better understand supercritical CO2 adsorption behavior and identify target coal seams, further supercritical CO2 adsorption experiments are needed in the southern Qinshui Basin.

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Section: Geological Settingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Supercritical CO₂ adsorption in a simulated deep coal reservoir environment, implications for geological storage of CO₂ in deep coals in the southern Qinshui Basin, China

Han

Sang

Liang

et al. 2019

Energy Science & Engineering

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“…The car bon di oxide may be in jected into coal seams, where it can be stored perma nently, pro vided that the coal seams will be never mined. There is cur rently in creased in ter est in the idea of CO 2 stor age in coal seams com bined with en hanced coal bed meth ane recov ery (ECBM; Reznik et al, 1984;Gale and Freund, 2001;Mazzotti et al, 2009;Harpalani and Mitra, 2010;Li and Fang, 2014;Perera and Ranjith, 2015;Kudasik et al, 2017;Pan et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

CO2 sorption properties of selected lithotypes of lignite from Polish deposits

Bielowicz

Baran

2019

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P., 2019. CO 2 sorp tion prop er ties of se lected lithotypes of lig nite from Pol ish de pos its. Geo log i cal Quar terly, 63 (4): 786-800, doi: 10.7306/gq.1508 As so ci ate ed i tor: Wojciech Drzewicki Sorp tion stud ies, to de ter mine the CO 2 sorp tion ca pac ity of coal, were car ried out us ing eight ortho-lig nite sam ples of dif ferent lithotypes, to in ves ti gate the pos si bil ity of CO 2 stor age in lig nite de pos its. Equa tions de ter min ing a num ber of pa ram e ters and in di ca tors used to de lin eate the ex per i men tal data and to dif fer en ti ate the sam ples ex am ined in clude: Langmuir isotherms; the Dubinin-Radushkevich (DR) equa tion that de scribes the the ory of vol ume fill ing of micropores; and the Brunauer, Emmett and Teller (BET) equa tion used to cal cu late the vol ume and sur face area of a monolayer. The re sults ob tained were com pared with the petrographic com po si tion and ul ti mate and prox i mate anal y sis of lig nite. There is a large cor re la tion between sorp tion and petrographic com po si tion, a pos i tive im pact of the Gelification In dex on the sorp tion pro cess and a clear re la tion ship be tween the sorp tion (Langmuir and DR) and ash con tent. The best CO 2 sorp tion prop er ties were found for xylo-detritic and detro-xylitic lig nites. Based on the tests car ried out, a pre lim i nary as sess ment of the suit abil ity of lig nite for CO 2 stor age can be made. Na tions Frame work Clas si fi ca tion of Re sources (UNFC). As of De cem ber 31, 2016, 91 lig nite de pos its were ex plored in Poland, of which 74 were doc u mented and are still un de vel oped. Pol ish extractable lig nite re sources amount to 1,129.06 mil lion tons, which is ~0.8% of the global re serves of this type (PGI-NRI, 2017). Lig nite de pos its whose ex ploi ta tion is not econom i cally vi a ble can be used for CO 2 se ques tra tion. At ten tion is there fore fo cused on deep lig nite de pos its and seam thick ness, the ex ploi ta tion of which is not eco nom i cally fea si ble. At the same time, the de pos its dis cussed are in su lated de pos its; thus, the pre vail ing geo log i cal con di tions could en able car bon capture and stor age. The geo log i cal and depositional con di tions required for CO 2 stor age are gen er ally sim i lar to the re quire ments for UCG, e.g. the depth of the de posit, thick ness and na ture (low-per me abil ity, struc tur ally co her ent and lat er ally con tin uous) of in su lat ing lay ers, pres ence of ground wa ter res er voirs and the lack of tec tonic dis tur bances in the di rect ex ploi ta tion zone. Stud ies per formed on the pos si bil ity of un der ground gasifi ca tion in Po land have shown that the de pos its at OEcinawa-G³ogów, Gostyñ, Krzywiñ, Wêglewice and Kamieñsk can be po ten tially used for CO 2 stor age (Bielowicz and Kasiñski, 2014). Gen er ally, the lim ited ac cess to sam ples from these lig nite de pos its pre vents sorp tion stud ies. There fore, it is cru cial to de ter mine trends al low ing a pre lim i nary as ...

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Evolution law and application of permeability in gob without coal pillar and self‐formed roadway

Liu

Feng

2022

Energy Science & Engineering

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Roof-cutting and pressure-releasing technology are used to cut out the pressure transmission line of the critical blocks in the roof, causing the roof to totally collapse in the gob, while the NPR large deformation anchor cable support keeps the highway in its self-formed state. The gangue compactness has increased greatly when fully collapsed and filled to the gob's edge. At the end of the working face, the void ratio between rock blocks and the loose area is decreased, resulting in an observable shortening of the airflow disturbance distance at the working face and a change in the disaster gas accumulation law in the deep gob. It is critical to obtain the permeability characteristics of gob to avoid hazardous gas migration. The evolutionary model of the permeability of the mined-out region is created based on the analysis of the movement law of the overburden strata and the collapsed law of the gangue in the gob, and the "Z" ventilation model is built to research the airflow law in the gob. The following are the key conclusions reached: The 0-10 m airflow exchange zone is severe, the 10-45 m airflow return face is weak, the 45-190 m section airflow exchange is weak, and the 190-280 m section airflow confluence gob enhances the top corner's weak air area. The 0-50 m part of the self-formed Roadway has a wide air leakage channel, and good sealing methods have a significant impact on air leakage in the working face. The two-dimensional model constructed by comprehensive quantification of the main controlling factors, such as broken-expand, pressure, and filling degree, can represent the law of gas migration in the panel to a significant extent, and the reliability of the permeability evolution law is confirmed through data comparison and analysis.

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CO₂ storage in coal to enhance coalbed methane recovery: a review of field experiments in China

Cited by 146 publications

References 51 publications

Supercritical CO₂ adsorption in a simulated deep coal reservoir environment, implications for geological storage of CO₂ in deep coals in the southern Qinshui Basin, China

Supercritical CO₂ adsorption in a simulated deep coal reservoir environment, implications for geological storage of CO₂ in deep coals in the southern Qinshui Basin, China

CO2 sorption properties of selected lithotypes of lignite from Polish deposits

Evolution law and application of permeability in gob without coal pillar and self‐formed roadway

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CO2 storage in coal to enhance coalbed methane recovery: a review of field experiments in China

Cited by 146 publications

References 51 publications

Supercritical CO2 adsorption in a simulated deep coal reservoir environment, implications for geological storage of CO2 in deep coals in the southern Qinshui Basin, China

Supercritical CO2 adsorption in a simulated deep coal reservoir environment, implications for geological storage of CO2 in deep coals in the southern Qinshui Basin, China

CO2 sorption properties of selected lithotypes of lignite from Polish deposits

Evolution law and application of permeability in gob without coal pillar and self‐formed roadway

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CO₂ storage in coal to enhance coalbed methane recovery: a review of field experiments in China

Supercritical CO₂ adsorption in a simulated deep coal reservoir environment, implications for geological storage of CO₂ in deep coals in the southern Qinshui Basin, China

Supercritical CO₂ adsorption in a simulated deep coal reservoir environment, implications for geological storage of CO₂ in deep coals in the southern Qinshui Basin, China