Microfacies and depositional environment of the Cenomanian of the Bangestan anticline, SW Iran

Ghabeishavi, Ali; Vaziri‐Moghaddam, Hossein; Taheri, Asghar; Taati, Farid

doi:10.1016/j.jseaes.2009.08.014

Cited by 76 publications

(36 citation statements)

References 22 publications

(30 reference statements)

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“…9a). The Sar-4, 5, 6 were mainly deposited in an open platform and lagoon environment where the sediments are predominantly from in situ deposition (Ghabeishavi et al 2010), while the reservoir quality is mainly controlled by the depositional site. The shallower the water environment is, the better the reservoir quality is.…”

Section: Reservoir Distributionmentioning

confidence: 99%

Genetic mechanism and development of the unsteady Sarvak play of the Azadegan oil field, southwest of Iran

Chen

Cui

et al. 2016

Pet. Sci.

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Section: Reservoir Distributionmentioning

confidence: 99%

Genetic mechanism and development of the unsteady Sarvak play of the Azadegan oil field, southwest of Iran

Chen

Cui

et al. 2016

Pet. Sci.

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“…Facies analysis of the Upper Cretaceous Sarvak and Ilam formations has been the subject of few previous studies (e.g., Ghabeishavi et al 2009Ghabeishavi et al , 2010Rahimpour-Bonab et al 2012a;Mehrabi et al 2014). However, nearly all of the researches have investigated these formations in the Dezful Embayment.…”

Section: Facies Analysismentioning

confidence: 99%

“…The oligosteginid-bearing facies are reported from the Sarvak Formation in various parts of the Zagros area (e.g., Ghabeishavi et al 2010;Rahimpour-Bonab et al 2012a;Mehrabi and Rahimpour-Bonab 2014). They are also considered as a biofacies, namely Oligostegina facies (biozone No.…”

Section: Outer Ramp and Basinal Faciesmentioning

confidence: 99%

Controls on depositional facies in Upper Cretaceous carbonate reservoirs in the Zagros area and the Persian Gulf, Iran

Mehrabi

Rahimpour‐Bonab

Hajikazemi

et al. 2015

Facies

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“…Sarvak Formation is a shallow carbonate reservoir rock with the age of Upper Albian to Upper Turonian, which is conformably laid on Kazhdumi Formation. The unconformity is interpreted as an erosional unconformity occurred after the formation deposition (Ghabeishavi et al, 2010). In the studied field, Laffan Formation is overlaid on Sarvak Formation above this sharp unconformity.…”

Section: Datasetmentioning

confidence: 83%

Application of Bayesian in determining productive zones by well log data in oil wells

Masoudi

Tokhmechi

Jafari

et al. 2012

Journal of Petroleum Science and Engineering

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Abstract:Exploration specialists conventionally utilize a cut-off-based method to find productive zones inside the oil wells. Using conventional method, pay zones are separated crisply from non-pay zones by applying cut-off values on some petrophysical features.In this paper, a Bayesian technique is developed to find productive zones (net pays), and Bayesian Network is used to select the most appropriate input features for this newly developed method. So, two Bayesian methods were developed: the first one with conventional pay determination inputs (shale percent, porosity and water saturation), the other with two inputs, selected by Bayesian Network (porosity and water saturation). Two developed Bayesian methods are applied on well log dataset of two wells: one well is dedicated for training and testing Bayesian methods, the other for checking generalization ability of the proposed methods. Outputs of two presented methods were compared with the results of conventional cut-offbased method and production test results (i.e. a direct procedure to check validation of proposed methods).Results show that the most prominent advantage of developed Bayesian method is determination of net pays fuzzily with no need to identify cut-offs, in addition to higher precision of classification: nearly 30% improvement in precision of determining net pays of first well (training well), and about 50% improvement in precision of determining productive zones through the generalizing well.

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Microfacies and depositional environment of the Cenomanian of the Bangestan anticline, SW Iran

Cited by 76 publications

References 22 publications

Genetic mechanism and development of the unsteady Sarvak play of the Azadegan oil field, southwest of Iran

Genetic mechanism and development of the unsteady Sarvak play of the Azadegan oil field, southwest of Iran

Controls on depositional facies in Upper Cretaceous carbonate reservoirs in the Zagros area and the Persian Gulf, Iran

Application of Bayesian in determining productive zones by well log data in oil wells

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