Consideration of geological aspects and geochemical parameters of fluids in Bushdi geothermal field, south of mount Sabalan, NW Iran

Masoumi, Rahim; Calagari, Ali Asghar; Siahcheshm, Kamal; Porkhial, Soheil; Pichler, Thomas

doi:10.1016/j.jafrearsci.2017.02.014

Cited by 4 publications

(2 citation statements)

References 25 publications

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“…So far, little work on geothermal fluids has been carried out to the east of Mount Sabalan, and most of the previous studies were done on geothermal activities in other areas around Mount Sabalan (Masoumi et al, 2016(Masoumi et al, , 2017a(Masoumi et al, , 2017b(Masoumi et al, , 2017c. Despite the lack of deep diamond drilling data, the important subjects such as hydrogeochemical characteristics of the fluids, isotopic issues, geologic conditions governing the geothermal reservoirs, lithologic compositions, and fluid-feeding localities in the study area merit more detailed investigations.…”

Section: Hydrogeochemistrymentioning

confidence: 99%

Evaluation of hydrogeochemical and isotopic properties of the geothermal waters in the east of Mount Sabalan, NW Iran

Masoumi¹,

Calagari²,

Siahcheshm³

et al. 2017

Turkish J Earth Sci

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The Mount Sabalan district is regarded as the best place to investigate geothermal activities in northwest Iran. Since the last episode of volcanic activity in the Plio-Quaternary time, hot springs and surficial steams as conspicuous manifestation of geothermal activities have appeared around the slopes of Mount Sabalan. The hot fluids circulating in this geothermal field contains anions chiefly of HCO 3 and Cl -; however, SO 4 2content in some water samples is relatively high, imparting sulfate characteristics to such fluids. Geothermometric studies provided compelling evidence for estimation of the reservoir temperature (~150 °C) in the study areas. Thus, in this respect, the geothermal systems in the east of Mount Sabalan were categorized as high-temperature. The composition of stable isotopes of oxygen (δ 18 O) and hydrogen (δD) indicated that the waters involved in this geothermal field have mainly meteoric origin. On the basis of 3 H isotopes, only a few water samples exhibited a residence time of ~63 years, which can be grouped as old waters.

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Section: Hydrogeochemistrymentioning

confidence: 99%

Evaluation of hydrogeochemical and isotopic properties of the geothermal waters in the east of Mount Sabalan, NW Iran

Masoumi¹,

Calagari²,

Siahcheshm³

et al. 2017

Turkish J Earth Sci

Self Cite

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“…The fracture width can effectively constrain the CBM reservoir permeability (Levine, 1996). Recently, the fractal theory was applied to evaluate the fracture complexity through the analysis of well logging data (Kundu et al., 2016; Masoumi et al., 2017; Ruspini et al., 2017; Yan et al., 2017; Zheng and Li, 2015).…”

Section: Introductionmentioning

confidence: 99%

A new fracture permeability model of CBM reservoir with high-dip angle in the southern Junggar Basin, NW China

Yang

Cai

Ren

et al. 2018

Energy Exploration & Exploitation

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Predicting the permeability of coalbed methane (CBM) reservoirs is significant for coalbed methane exploration and coalbed methane development. In this work, a new fracture permeability model of coalbed methane reservoir with high-dip angle in the southern Junggar Basin, NW China is established based on the Poiseuille and Darcy laws. The fracture porosity in coalbed methane reservoir is calculated by applying 3D finite element method. The formation cementing index m was calculated by combining fractal theory and the data of acoustic logging, compensated neutron logging, and density logging with the space method. Based on Poiseuille and Darcy laws, the curvature s is introduced to derive this new method for obtaining the permeability of the original fractures in coalbed methane reservoirs. Moreover, this newly established permeability model is compared with the permeability from the well testing, which shows a very good correlation between them. This model comprehensively includes the effects of fracture porosity, reservoir pore structure, and development conditions on fracture permeability. Finally, the permeability prediction of coalbed methane reservoir with high-dip angle in the southern Junggar Basin, NW China is conducted, which correlates very well with the well test permeability (R 2 ¼ 0.83). Therefore, this model can be used to accurately predict the coalbed methane reservoir permeability of low rank coals in the southern Junggar Basin. The permeability of the No.43 coalbed methane reservoir for the coalbed methane wells without well testing data is evaluated, which ranges from 0.000251 to 0.379632 mD. This significant change in permeability may indicate a complex coalbed methane reservoir structure in the southern Junggar Basin, NW China.

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Exploring the hydrogeochemical evolution of cold and thermal waters in the Sarein-Nir area, Iran using stable isotopes (δ18O and δD), geothermometry and multivariate statistical approaches

Barzegar

Moghaddam

Tziritis³

et al. 2020

Geothermics

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Consideration of geological aspects and geochemical parameters of fluids in Bushdi geothermal field, south of mount Sabalan, NW Iran

Cited by 4 publications

References 25 publications

Evaluation of hydrogeochemical and isotopic properties of the geothermal waters in the east of Mount Sabalan, NW Iran

Evaluation of hydrogeochemical and isotopic properties of the geothermal waters in the east of Mount Sabalan, NW Iran

A new fracture permeability model of CBM reservoir with high-dip angle in the southern Junggar Basin, NW China

Exploring the hydrogeochemical evolution of cold and thermal waters in the Sarein-Nir area, Iran using stable isotopes (δ18O and δD), geothermometry and multivariate statistical approaches

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