Results 161 to 170 of about 7,701 (187)

Coupled hydro-mechanical analysis of underground gas storage at Sarajeh field, Qom formation, Iran

Journal of Natural Gas Science and Engineering, 2021
Abstract Production or injection of fluids from/in an underground storage site causes variations of pore pressure and stress states. These fluctuations significantly affect implications for hydraulic fracturing, wellbore integrity, top surface subsidence and heave, fault-reactivation, and stability of reservoir and caprock.
Mohsen Bakhtiari, Saeed Shad, Davood Zivar, Negar Razaghi   +3 more
openaire   +1 more source

Benthic Foraminiferal Events of the Qom Formation in the North Central Iran Zone

Paleontological Research, 2019
In order to recognize and verify the lower Miocene deposits and the Aquitanian-Burdigalian boundary, benthic foraminifera from different localities in the north of the Central Iran Zone are considered. These facies-controlled foraminifera are useful for biostratigraphical studies, especially in the absence of planktic foraminifera.
Jahanbakhsh Daneshian, Leila Ramezani Dana   +1 more
openaire   +1 more source

Depositional environment of the evaporitic unit (D-member) of the Qom Formation (Central Iran)

Carbonates and Evaporites, 2007
The Qom Formation, in the Central basin of Iran, is characterized by shallow marine limestone and lagoonal facies. The D-member, one of the six major members of the Formation, is dominated by gypsum (anhydrite). Several types of textural and structural features have been recognized in this unit.
Mahmoud Khalili, Roy Beavers, Hosein Torabi   +2 more
openaire   +1 more source

Microfacies and depositional environments of the Qom Formation in Barzok area, SW Kashan, Iran

Carbonates and Evaporites, 2018
Qom Formation (Oligo-Miocene marine deposits of Middle Iran) in the southwestern Kashan was studied to determine its microfacies and depositional environments. Outcrops of the Qom Formation in the study area with 410 m, consist mainly of limestone, sandy limestone, shale and marl.
Ebrahim Mohammadi, Mahboubeh Hasanzadeh-Dastgerdi, Amrollah Safari, Hossein Vaziri-Moghaddam   +3 more
openaire   +1 more source

Early Miocene benthic foraminifera and biostratigraphy of the Qom Formation, Deh Namak, Central Iran

Journal of Asian Earth Sciences, 2007
Abstract A total of 165 samples were collected from the Qom Formation investigated in a stratigraphic section north of Deh Namak, in Central Iran. From these, 35 genera and 47 species of benthic foraminifera were identified. The age of the studied section is Early Miocene (Aquitanian to Early Burdigalian) based on the occurrence of Borelis melo ...
Jahanbakhsh Daneshian, Leila Ramezani Dana   +1 more
openaire   +1 more source

Sedimentology and Reservoir Characterization of the Qom Formation, Central Iran Basin

Journal Of The Geological Society Of India
ABSTRACT The Qom Formation has been considered as a significant reservoir succession in Central Iran forming various hydrocarbon fields. The geological data from four wells from the two hydrocarbon fields (I and II) have been investigated for a reconstruction of sedimentary and diagenetic environments as well as reservoir quality of the ...
Seyed Behzad Mirzadeh Vaghefi, Davood Jahani, Mohammad Ali Arian, Mahmoud Almasian, Hossein Sheikhzadeh   +4 more
openaire   +1 more source

Revision of the age of the Qom Formation in the Central Iran Basin, Iran

Journal of Asian Earth Sciences, 2007
Abstract The Qom Formation in the Central Iran Basin contains not only relatively abundant calcareous nannofossils and a small number of dinoflagellate cysts, but also a number of stratigraphically significant benthonic foraminifers and ostracods. Calcareous nannofossils reported for the first time from this formation include Coccolithus pelagicus ,
Youhua Zhu, Yuping Qi, Binggao Zhang, Hengren Yang, Chengquan He, Shihu Wang, Wen Zhou, Qiang Zhu, Zheng Li   +8 more
openaire   +1 more source

Biostratigraphy and Paleoenvironments of the Oligocene Deposits (Qom Formation) in the Neyzar Area (Southeast of Salafchegan), Iran

Paleontological Research, 2021
The Qom Formation deposits, located at 12 km southeast of Salafchegan (N: 34° 21′ 26″ and E: 50° 32′ 14″), have a thickness of 110 m. The formation includes thin, and medium-to-thick bedded limestone, as well as shale, overlying the Lower Red Formation (early Oligocene) above an erosional unconformity.
Amrollah Safari, Hossein Ghanbarloo, Saber Mahmudi Purnajjari, Hossein Vaziri Moghaddam   +3 more
openaire   +1 more source

Comparison of models for estimating uniaxial compressive strength of some sedimentary rocks from Qom Formation

Environmental Earth Sciences, 2017
To estimate uniaxial compressive strength of some sedimentary rock types from a set of index test results, selected soft computing methods were employed. Consequent comparative performances of these methods were also evaluated. Some selected sedimentary rock types (i.e., grainstone, wackestone–mudstone, boundstone, gypsum and silty marl) collected from
Seyed Hossein Jalali, Mojtaba Heidari, Hassan Mohseni   +2 more
openaire   +1 more source

BIOFACIES, TAPHOFACIES, AND DEPOSITIONAL ENVIRONMENTS IN THE NORTH OF NEOTETHYS SEAWAY (Qom Formation, Miocene, Central Iran)

Геология и геофизика, 2019
Abstract This research attempted to reconstruct the sedimentary environment and depositional sequences of the Qom Formation in Central Iran, using biofacies and taphofacies analyses. The Qom Formation in the Andabad area (3°48′12.6″ N, 47°59′28″ E) is 220 m in thickness. The thickness of the Qom Formation in the Nowbaran area (35°05′22.5″
M. Mahyad, A. Safari, H. Vaziri-Moghaddam, A. Seyrafian   +3 more
openaire   +2 more sources