Comment on “Identifying Well Contamination through the use of 3-D Fluorescence Spectroscopy to Classify Coalbed Methane Produced Water”

2013 ◽  
pp. 130111084140005
Author(s):  
Wen-Tao Li ◽  
Zi-Xiao Xu ◽  
Ai-Min Li
Keyword(s):  
Fluorescence Spectroscopy ◽  
Coalbed Methane ◽  
Produced Water

Identifying Well Contamination through the use of 3-D Fluorescence Spectroscopy to Classify Coalbed Methane Produced Water

2012 ◽  
Vol 47 (1) ◽  
pp. 649-656 ◽  
Author(s):  
Katharine G. Dahm ◽  
Colette M. Van Straaten ◽  
Junko Munakata-Marr ◽  
Jörg E. Drewes
Keyword(s):  
Fluorescence Spectroscopy ◽  
Coalbed Methane ◽  
Produced Water

scholarly journals Irrigation with Coalbed Methane Co-Produced Water Reduces Forage Yield and Increase Soil Sodicity However Does Not Impact Forage Quality

2021 ◽  
Vol 13 (6) ◽  
pp. 3545
Author(s):  
Shital Poudyal ◽  
Valtcho D. Zheljazkov
Keyword(s):  
Fresh Water ◽  
Coalbed Methane ◽  
Produced Water ◽  
Forage Quality ◽  
Dry Weight ◽  
Quality Parameters ◽  
Forage Yield ◽  
Neutral Detergent Fiber ◽  
Forage Crops ◽  
Feed Value

The extraction of coalbed methane produces a significant amount of coalbed methane co-produced water (CBMW). Coalbed methane co-produced water is often characterized by high levels of pH, total dissolved solids (TDS), sodium (Na) and bicarbonate (HCO−3) and if used for irrigation without treatment, it may be detrimental to the surrounding soil, plants and environment. CBMW ideally should be disposed of by reinjection into the ground, but because of the significant cost associated, CBMW is commonly discharged onto soil or water surfaces. This study was conducted to elucidate the effect of the CBMW (with TDS value of <1500 ppm) at various blending ratios with fresh water on the yield and quality of representative forage crops [i.e., oat (Avena sativa) and alfalfa (Medicago sativa)]. Various blends of CBMW with fresh water reduced fresh and dry weight of alfalfa by 21.5–32% and 13–30%, respectively and fresh and dry weight of oat by 0–17% and 0–14%, respectively. Irrigation with various blends of CBMW and fresh water increased soil pH and soil sodium adsorption ratio. However, forage quality parameters such as crude protein (CP), acid detergent fiber (ADF), neutral detergent fiber (NDF), total digestible nutrients (TDN) and relative feed value (RFV) of both forage crops remained unaffected.

Management of Coalbed Methane and Coal Mine Produced Water for Beneficial Use in Damodar Basin of India

2017 ◽  
pp. 283-296 ◽  
Author(s):  
Vinod Atmaram Mendhe ◽  
Subhashree Mishra ◽  
Awanindra Pratap Singh ◽  
Alka Damodhar Kamble ◽  
Mollika Bannerjee ◽  
...  
Keyword(s):  
Coal Mine ◽  
Coalbed Methane ◽  
Produced Water ◽  
Beneficial Use

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

2020 ◽  
Vol 38 (4) ◽  
pp. 1034-1053
Author(s):  
Yang Li ◽  
Shuheng Tang ◽  
Songhang Zhang ◽  
Zhaodong Xi ◽  
Pengfei Wang
Keyword(s):  
Coalbed Methane ◽  
Produced Water ◽  
Dissolved Inorganic Carbon ◽  
Gas Production ◽  
Redox Conditions ◽  
Effective Parameters ◽  
Production Rates ◽  
Qinshui Basin ◽  
Southern Qinshui Basin ◽  
Biogeochemical Parameters

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.

scholarly journals Reconstruction of a Nearly Complete Pseudomonas Draft Genome Sequence from a Coalbed Methane-Produced Water Metagenome

2016 ◽  
Vol 4 (5) ◽  
Author(s):  
Daniel E. Ross ◽  
Djuna Gulliver
Keyword(s):  
Nitrogen Fixation ◽  
Microbial Community ◽  
Genome Sequence ◽  
Coalbed Methane ◽  
Produced Water ◽  
Draft Genome ◽  
Pseudomonas Stutzeri ◽  
Draft Genome Sequence ◽  
Degradation Pathways ◽  
Naphthalene Degradation

The draft genome sequence of Pseudomonas stutzeri strain K35 was separated from a metagenome derived from a produced water microbial community of a coalbed methane well. The genome encodes a complete nitrogen fixation pathway and the upper and lower naphthalene degradation pathways.

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