A new insight into the structural architecture of Sharyoof field, Say’un–Masilah basin, Yemen

Abdullah, E. A.; Al‐Areeq, Nabil M.; Elmahdy, Munir; Barakat, Moataz Kh.

doi:10.1007/s12517-021-08299-2

Cited by 13 publications

(8 citation statements)

References 47 publications

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“…They constructed a basin model, and their results reached the conclusion that the end of the She reached the conclusion that the Tethyan rifting that occurred during the Late Jurassic and Early Cretaceous caused subsidence events in Matruh basin, which were accordingly associated with source rock maturation. By comparing our work to the work done by authors [63][64][65][66][67][68][69] , we can draw the conclusion that it is of prime importance to monitor the tectonics of the basin and interpret the main faults to understand their effect on reservoir thickness, distribution, and heterogeneity.…”

Section: Model Validationmentioning

confidence: 80%

3D geological and petrophysical modeling of Alam El-Bueib Formation using well logs and seismic data in Matruh Field, northwestern Egypt

Ali,

Deaf,

Mostafa

2024

Sci Rep

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There are several productive petroleum fields in the North Western Desert (WD) of Egypt, which received extensive investigations regarding their petroleum potential. However, a few studies tackled the Matruh Oil Field, which contains the oil prolific Early Cretaceous Alam El-Bueib Formation (AEB Fm) reservoir. The reservoir intervals of the AEB Fm show substantial lithological variations across the basin. Therefore, it is necessary to analyze the vertical and lateral distributions in terms of their lithological and petrophysical properties. To achieve this objective, wireline logs of four wells and 20-2D seismic lines were used to construct a depth-structure contour map for the studied part of the field. This map was used to build the field’s structure model and to identify the fault patterns in the basin through several seismic lines. Analyses of well logs data and lithology were used to estimate the petrophysical properties of AEB sandstone units AEB-1, AEB-3A, AEB-3C, and AEB-6. Results show that the AEB-6 Unit is the most promising hydrocarbon-bearing unit. It has a net pay of 20–160 feet, a shale volume of 5–20%, an effective porosity of 14–20%, and a hydrocarbon saturation of 70–88%. The structure-depth maps indicate a number of normal faults with two principal NE-SW and NW–SE trends, which probably act as structural traps in the Matruh Oil Field. The constructed structure-depth maps and calculated petrophysical parameters were used to build a three-dimensional reservoir model. A blind well was used to validate the accuracy and reliability of the facies, porosity, and saturation models for the AEB Fm units, ensuring a good match between log-derived data and built models. The AEB Fm shows regional heterogeneous variations in its petrophysical characteristics. It exhibits unconventional reservoir characteristics in a N–S direction and conventional reservoir characteristics in an E–W direction. This observed heterogeneity shows the need to carry out further investigations to comprehensively assess the hydrocarbon potential of AEB Fm in different areas of the Matruh Basin.

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Section: Model Validationmentioning

confidence: 80%

3D geological and petrophysical modeling of Alam El-Bueib Formation using well logs and seismic data in Matruh Field, northwestern Egypt

Ali,

Deaf,

Mostafa

2024

Sci Rep

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“…The seismic interpretation was used for identifying the geological setting of the study area for oil exploration by Fig. 9 3D View displays the flattened depth strata on the flattened seismic volume using the flattened stratal slicing method on the interpreted Alamein dolomite and AEB-3B horizons, the method provided an obvious increase in horizontal resolution for depositional history description mapping the subsurface seismic data and determining the best well location (Abdullah et al 2021;Barakat et al 2022).…”

Section: Methodsmentioning

confidence: 99%

Decoding of seismic data for complex stratigraphic traps revealing by seismic attributes analogy in Yidma/Alamein concession area Western Desert, Egypt

El-Nikhely

El-Gendy

Bakr

et al. 2022

J Petrol Explor Prod Technol

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Sandstone channels are one of the best stratigraphic traps for hydrocarbon accumulation, and their depositional and composition make them difficult to detect on ordinary seismic data, especially in structurally affected onshore areas like the Western Desert of Egypt. The Western Desert of Egypt has many hydrocarbon-bearing reservoirs of various compositions like carbonates and sandstones with high production rates, and thus the Western Desert of Egypt is recognized as a hot spot for oil and gas exploration. One of the important reservoirs in the Lower Cretaceous “the Aptian sand” produced around 285 MBBLS cumulative oil of 22° API and still produces 102 BOPD. This reservoir has a channel-type depositional environment, and the dimensions of this channel could be resolved by good quality 3D seismic data in the moderately deep basins as the basins become deeper, the detection of the channel becomes increasingly challenging. This study aims to delineate the geometry of this reservoir and reveal the exposure from the Aptian sand channel in the Alamein area using the seismic attributes analogy on the re-processed 3D seismic data to determine the best drilling location for increasing the production from this reservoir. In this context, the relative acoustic impedance (RAI), iso-frequency components, and sweetness stratigraphic attribute analyses were conducted on the optimized seismic data and attested as important as they resolved the stratigraphic geological mystery in the structurally affected study area. These attribute analyses revealed the exposure from the distinctive meander channel of the Aptian sand for the first time in the study area nearby the producing Alamein field, where this channel was hard to be distinguished by the ordinary seismic interpretation methods and there is no drilled well penetrated the detected channel’s body. Upon the results, the conclusion and recommendation summaries to intensify the efforts to test the productivity of the detected channel to increase the production from this motivating reservoir by drilling a new well targeting the best structural locations of the channel body.

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“…After applying different adjustments, the total and effective porosities were calculated using a combination of density neutron and sonic logs. [24,25,26,27]. Formation water resistivity (Rw) also was estimated based on water salinity of actual samples collected from the wells study [28].…”

Section: Methodsmentioning

confidence: 99%

Application of Well Log Analysis to Estimate the Petrophysical Parameters of the Lower Rudeis Formation in July Oilfield, Gulf of Suez, Egypt

Barakat

El-Gendy

El-Shishtawy

et al. 2022

Al-Azhar Bulletin of Science

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The Gulf of Suez is considered as a multi-reservoir's basin, containing several reservoirs. It is located at the northeast end of the African plate, along the African-Arab plates. One of the main reservoirs in the Gulf of Suez is the Lower Rudeis (July Member), especially in July Oilfield, and was deposited during the Early Miocene. Comprehensive studies were performed to illustrate the relationships between the different reservoir parameters measured through the well log analysis. The July member reservoir was divided into three zones based on geophysical log responses: denominate zones (A), (B) and zone (C). Petrophysical parameters were calculated, together with lithology and porosity identification crossplots, for each zone individually to evaluate the July member sandstones. The obtained data indicated that the July member appears to be a good quality reservoir with relatively high storage capacity, with average shale volume of 8 to 42%, average effective porosity of 9.2 to 15.9 %, average calculated permeability of 16.2 to 71 mD, and average hydrocarbon saturation of 10.3 to 73.3 %. The reservoir parameters when mapped at the three levels of the reservoir zones have provided a clear figure about the horizontal distribution of these parameters in the study area and helped in tracing these parameters vertically.

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A new insight into the structural architecture of Sharyoof field, Say’un–Masilah basin, Yemen

Cited by 13 publications

References 47 publications

3D geological and petrophysical modeling of Alam El-Bueib Formation using well logs and seismic data in Matruh Field, northwestern Egypt

3D geological and petrophysical modeling of Alam El-Bueib Formation using well logs and seismic data in Matruh Field, northwestern Egypt

Decoding of seismic data for complex stratigraphic traps revealing by seismic attributes analogy in Yidma/Alamein concession area Western Desert, Egypt

Application of Well Log Analysis to Estimate the Petrophysical Parameters of the Lower Rudeis Formation in July Oilfield, Gulf of Suez, Egypt

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