Assessment of petrophysical parameters of clastics using well logs: The Upper Miocene in El-Wastani gas field, onshore Nile Delta, Egypt

El-Din, Ezz S.; Mesbah, Maher A.; Kassab, Mohamed A.; Mohamed, Ibtehal F.; Cheadle, Burns A.; Teama, Mostafa A.

doi:10.1016/s1876-3804(13)60062-2

Cited by 24 publications

(5 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this study well logging data from two wells (A and B) in Sarvak Formation and Geolog software have been used to determine petrophysical parameters. Similar studies have been performed in different regions [4][5][6][7]. Also, in [8], this approach has been combined with other techniques to study the Mishrif Formation in Iraq, which is equivalent to the Sarvak Formation.…”

Section: Introductionmentioning

confidence: 93%

Petrophysical Evaluation of the Sarvak Formation Based on Well Logs in Dezful Embayment, Zagros Fold Zone, South West of Iran

Jooybari

Rezaie

2017

Eng. Technol. Appl. Sci. Res.

View full text Add to dashboard Cite

Dezful embayment in the south west of Iran is part of Zagros fold zone which despite the small area includes almost all of Iran oil production. Sarvak Formation with middle cretaceous (Albin-Turunin) is the second biggest reservoir of Zagros basin, after the Asmari formation. In this study, with well logging data of two wells, by Geolog software, the petrophysical parameters of Sarvak Formation in the Dezful embayment was studied using the contingent Probabilistic method. Petrophysical parameters such as determination of porosity, water saturation, shale volume and lithology were calculated using this data and common cross plots. Based on this evaluation and utilizing cross plots result, the lithology of Sarvak formation in this zone was determined to be Limestone with traces of dolomite and shale. According to the calculated petrophysical properties of the reservoir, and for more accurate assessment, Sarvak Formation was divided to 6 sections. Findings of this research show that Sarvak Formation includes good reservoir parameters only in half its sections (sections 4, 2 and 6).

show abstract

Section: Introductionmentioning

confidence: 93%

Petrophysical Evaluation of the Sarvak Formation Based on Well Logs in Dezful Embayment, Zagros Fold Zone, South West of Iran

Jooybari

Rezaie

2017

Eng. Technol. Appl. Sci. Res.

View full text Add to dashboard Cite

show abstract

“…The effective porosity versus shale content and effective porosity versus effective water saturation cross-plots, derived from logging data, in conjunction with gamma ray log readings plotted on the z axis (Teama and Nabawy 2016;and El-Din et al 2013) of the Facha reservoir were utilized Fig. 8 Neutron porosity (Ø N ) versus bulk density (ρ b ) crossplot of A8 well Fig.…”

Section: Determination Of Cutoff Valuesmentioning

confidence: 99%

Prospect evaluation and hydrocarbon potential assessment: the Lower Eocene Facha non-clastic reservoirs, Hakim Oil Field (NC74A), Sirte basin, Libya—a case study

Kassab

Abbas

Teama

et al. 2019

J Petrol Explor Prod Technol

View full text Add to dashboard Cite

Petrophysical assessment of Facha Formation based on log data of six wells A1, A3, A4, A5, A8 and A13 recorded over the entire reservoir interval was established. Hakim Oil Field produces from the Lower Eocene Facha reservoir, which is located at the western side of Sirte basin. Limestone, dolostone and dolomitic limestone are the main lithologies of the Facha reservoir. This lithology is defined by neutron porosity-density cross-plot. Noteworthily, limestone increases in the lowermost intervals of the reservoir. Structurally, the field is traversed by three northwest-southeast faults. The shale of the Upper Cretaceous Sirte Formation is thought to be the source rock of the Facha Formation, whereas the seals are the limestone and anhydrite of the Lower Eocene Gir Formation. In this study, the Facha reservoir's cutoff values were obtained from the cross-plots of the calculated shale volume, porosity and water saturation values accompanied with gamma ray log data and were set as 20%, 10% and 70%, respectively. Isoparametric maps for the thickness variation of net pay, average porosity, shale volume and water saturation were prepared, and the authors found out that the Facha Formation has promising reservoir characteristics in the area of study; a prospective region for oil accumulation trends is in the north and south of the study area.

show abstract

“…Iso-Net pay variation map. To define the net pay intervals, you have first to set the cut-offs values (you didn't mention anything about these values) for the volume of shale, effective porosity, and water saturation by using different cross plots, then use these values to define the pay zones (El-Din et al 2013;Teama and Nabawy 2016). In the present study, the Cut-Offs are determined from core data as according to Khalda Petroleum Company, porosity cut-off equal 12%, volume of shale cut-off equal 35%, and water saturation cut-off equal 65% for Upper Bahariya.…”

Section: Iso-parametric Maps Of Upper Bahariyamentioning

confidence: 99%

Hydrocarbon potential of Upper Bahariya member in Um Baraka oil field, North Western Desert, Egypt

Kassab

Abbas

Attiya³

2019

NRIAG Journal of Astronomy and Geophysics

View full text Add to dashboard Cite

The present study deals with the hydrocarbon potential evaluation of the Upper Bahariya Member (Upper Cretaceous) in Um Baraka field, North Western Desert. The Upper Bahariya Member is characterised by sandy shale facies in the UMB-152 well, calcareous shale facies in the UMB-89 well and calcareous sand facies in the UMB-108 and UMB-130 wells, these facies reflect to fluvio-marine environment changing to shallow marine environment. The petrophysical parameters results of Upper Bahariya Member are represented laterally (Iso-parametric maps, such as effective porosity, shale content, net-pay thickness and hydrocarbon saturation variation maps) and vertically (Litho-saturation cross-plots). The Iso-parametric maps revealed that the promising hydrocarbon-bearing zones are characterised by their clay content range from 1.7% to 21.4%, effective porosity ranges from 13.2% to 19.7%, net pay thickness range from 7.5 ft to 15.5 ft, and hydrocarbon saturations range from 39.3% to 68.3%. The log analysis and petrophysical parameters results indicate that the Upper Bahariya Member is considered to be the main potential reservoir in Um Baraka field. The petrophysical parameters of the Upper Bahariya reservoir illustrated the improvement of the reservoir properties of Upper Bahariya Member towards the north and northwest and northeast directions, due to increasing of total porosity, effective porosity and hydrocarbon saturation.

show abstract

Assessment of petrophysical parameters of clastics using well logs: The Upper Miocene in El-Wastani gas field, onshore Nile Delta, Egypt

Cited by 24 publications

References 3 publications

Petrophysical Evaluation of the Sarvak Formation Based on Well Logs in Dezful Embayment, Zagros Fold Zone, South West of Iran

Petrophysical Evaluation of the Sarvak Formation Based on Well Logs in Dezful Embayment, Zagros Fold Zone, South West of Iran

Prospect evaluation and hydrocarbon potential assessment: the Lower Eocene Facha non-clastic reservoirs, Hakim Oil Field (NC74A), Sirte basin, Libya—a case study

Hydrocarbon potential of Upper Bahariya member in Um Baraka oil field, North Western Desert, Egypt

Contact Info

Product

Resources

About