Microbial enhancing coal-bed methane generation potential, constraints and mechanism – A mini-review

Bao, Yuan; Huang, Haiping; He, Dazhi; Ju, Yi‐Hsu; Qi, Yu

doi:10.1016/j.jngse.2016.08.035

Cited by 47 publications

(24 citation statements)

References 66 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…During the last years, several reviews on biological aspects of methanogens (Borrel et al 2016 ; Goyal et al 2016 ), on natural methanogenesis (e.g. Park and Liang 2016 ; Bao et al 2016 ) or on single technical applications, eventually in combination with the very specific biology within the process (Biogas: Wang et al 2017 ; Braguglia et al 2017 ; Koo et al 2017 ; Biogas upgrading and optimization: Neumann et al 2016 ; Choong et al 2016 ; Romero-Güiza et al 2016 ; Bioelectromethanation: Blasco-Gómez et al 2017 ; Geppert et al 2016 ) have been published. All these review articles are rather specialized to one single aspect of methanogens.…”

Section: Discussionmentioning

confidence: 99%

Methanogens: biochemical background and biotechnological applications

et al. 2018

View full text Add to dashboard Cite

Since fossil sources for fuel and platform chemicals will become limited in the near future, it is important to develop new concepts for energy supply and production of basic reagents for chemical industry. One alternative to crude oil and fossil natural gas could be the biological conversion of CO2 or small organic molecules to methane via methanogenic archaea. This process has been known from biogas plants, but recently, new insights into the methanogenic metabolism, technical optimizations and new technology combinations were gained, which would allow moving beyond the mere conversion of biomass. In biogas plants, steps have been undertaken to increase yield and purity of the biogas, such as addition of hydrogen or metal granulate. Furthermore, the integration of electrodes led to the development of microbial electrosynthesis (MES). The idea behind this technique is to use CO2 and electrical power to generate methane via the microbial metabolism. This review summarizes the biochemical and metabolic background of methanogenesis as well as the latest technical applications of methanogens. As a result, it shall give a sufficient overview over the topic to both, biologists and engineers handling biological or bioelectrochemical methanogenesis.

show abstract

Section: Discussionmentioning

confidence: 99%

Methanogens: biochemical background and biotechnological applications

et al. 2018

View full text Add to dashboard Cite

show abstract

“…These processes utilize H resulting in D enrichment in residual groundwater. In the present study, low-temperature fluid-rock interactions and biological activities tend to result in D drift in coal formation water (Bao et al, 2016;Hamilton et al, 2014). Moreover, hydrogen sulfide produced by thermal evolution and sulfate reduction dissolved in coal reservoir water may lead to hydrogen isotope exchange as defined in equation (4)…”

Section: Major Ion Composition and Cbm Productionmentioning

confidence: 80%

Biogeochemistry and the associated redox signature of co-produced water from coalbed methane wells in the Shizhuangnan block in the southern Qinshui Basin, China

Tang

Zhang

et al. 2020

Energy Exploration & Exploitation

View full text Add to dashboard Cite

To meet the global energy demands, the exploitation of coalbed methane has received increasing attention. Biogeochemical parameters of co-produced water from coalbed methane wells were performed in the No. 3 coal seam in the Shizhuangnan block of the southern Qinshui Basin (China). These biogeochemical parameters were firstly utilized to assess coal reservoir environments and corresponding coalbed methane production. A high level of Na+ and HCO3– and deuterium drift were found to be accompanied by high gas production rates, but these parameters are unreliable to some extent. Dissolved inorganic carbon (DIC) isotopes δ13CDIC from water can be used to distinguish the environmental redox conditions. Positive δ13CDIC values within a reasonable range suggest reductive conditions suitable for methanogen metabolism and were accompanied by high gas production rates. SO42–, NO3– and related isotopes affected by various bacteria corresponding to various redox conditions are considered effective parameters to identify redox states and gas production rates. Importantly, the combination of δ13CDIC and SO42– can be used to evaluate gas production rates and predict potentially beneficial areas. The wells with moderate δ13CDIC and negligible SO42– represent appropriate reductive conditions, as observed in most high and intermediate production wells. Furthermore, the wells with highest δ13CDIC and negligible SO42– exhibit low production rates, as the most reductive environments were too strict to extend pressure drop funnels.

show abstract

“…Until now, drinking water has always been the source of hydrofracturing operation. However, this strategy found to be different problems including water shortage and contamination [5][6][7]. Therefore, it is important to develop a hydrofracturing method with the not only recovery of water and decrease the water contamination but also capable to avoid microorganisms contamination.…”

Section: Introduction *mentioning

confidence: 99%

Novel eco-friendly linear gel for oil well recovery through efficient hydrofracturing

Murthy

Chavali³

2021

J. Appl. Sci. Eng. Technol. Educ.

View full text Add to dashboard Cite

The linear gel is prepared by treating bio-diesel with various water samples collected from different water bodies. The new biodiesel based linear gel was employed in the recovery of oil wells through hydrofracturing and pilot tests were conducted for the first time. The viscosity of gel was measured at various bottom hole-circulating temperatures and it was found to vary from 32 to zero dial reading in the range of 45ºC to 60ºC. The gel was observed to break at 45ºC and 60ºC in 120 min. So the final temperature was selected as 60ºC for the application of gel for coal bed methane (CBM) wells. It was observed that higher levels of salinity in water helped in optimum utilization of gel in real-time application.

show abstract

Microbial enhancing coal-bed methane generation potential, constraints and mechanism – A mini-review

Cited by 47 publications

References 66 publications

Methanogens: biochemical background and biotechnological applications

Methanogens: biochemical background and biotechnological applications

Biogeochemistry and the associated redox signature of co-produced water from coalbed methane wells in the Shizhuangnan block in the southern Qinshui Basin, China

Novel eco-friendly linear gel for oil well recovery through efficient hydrofracturing

Contact Info

Product

Resources

About