benisuef basin the key for exploration future success in upper egypt
TRANSCRIPT
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Qarun Petroleum Company
Beni Suef Basin
The Key ForExploration Future Success in Upper Egypt
Hemida Zahran * Khaled Abu Elyazid Mostafa Mohamad
By
April 2011
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AFRICA
EGYPT
L a h u nY u s i f
B . S u e f C o n c e s s i o n
A z h a r
G h a r i b o nS o h b a
B . S u e f
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Matruh - Shushan
Alamein Basin
Basins
W. Rayan Field
Qarun Field
Abu El-GharadigBasin
Paleozoic B
asins
100 km.0
Karama Field
Gindi Basin
B. Suef Basin
Basins Distribution Map
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Stratigraphic Column of B. Suef Basin
Bahariya & Kharita
Source Rocks :A / R “ F “ carbonates
L. Kharita Shale & Siltstone
Reservoires :
A / R “ A , E & G “
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700 Km (2007)
2
884 Km(2008)
2
598 Km(2009)
2
247 Km(2004)
2
2D & 3D Seismic Surveys In Beni-Suef Concession
3D : 2429 km2
2D : 3034 km
East of NileWest of Nile
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Combined TWT Structure maps
East of Nile
West of NileN
ile R
ever
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B. Suef
Azhar
Yusif
Lahun
Gharibon
Sohba
East Of NileEast Of Nile
West Of NileWest Of Nile
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B. Suef
Azhar
Yusif
Lahun
Gharibon
Sohba
East Of NileEast Of Nile
West Of NileWest Of Nile
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B. Suef Field Bahariya Depth Structure
B. Suef – 1x
N
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B.Suef – 5x Kharita
O.W.C @ 7100` / - 6890`
= 20-22 % SW =15-20 % NP = 70 ft.
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B. Suef Field A / R “ A “ Depth Structure
B. Suef – 11
N
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3580
3596
3605
3616
3624
3640
3652
3658
BS-11 Abu Roash “A” Pay Sands
= 19 % SW =35 % NP = 23 ft.
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B. Suef
Azhar
Yusif
Lahun
Gharibon
Sohba
East Of NileEast Of Nile
West Of NileWest Of Nile
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Azhar Field Bahariya Depth Structure
Azhar – 1x
N
Azhar E – 1x
Azhar E – 3
Azhar E – 2
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Kharita Zone – 1 8148 / - 7623
Kharita Zone – 2 8218 / - 7692
Kharita Zone – 3 8298 / - 7770
O. W. C. 8350 / - 7821
Azhar – 1x Kharita Sand
= 14 % SW =38 % NP =80 %
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Azhar E. – 1x U. Bahariya
= 21 % SW =40 % NP = 12 ft.
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6348
6374
Azhar E. – 1x Up. A / R “ G – 5 “
= 12 % SW =32 % NP = 20 ft.
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B. Suef
Azhar
YusifLahun
Gharibon
Sohba
East Of NileEast Of Nile
West Of NileWest Of Nile
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Yusif Field L. A /R “ G “ Depth Structure
Yusif – 1x
N
Yusif – 3
Yusif – 4
Yusif – 2
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Yusif – 1x L. A / R “ G “ Sands
= 17 % SW =48 % NP = 21.5 ft.
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7170
7150
Yusif - 3 U. Bahariya Sands
= 17 % SW =29 % NP = 20 ft.
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7640
7660
Yusif - 4 L. Bahariya Sands
= 14 % SW =50 % NP = 14 ft.
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B. Suef
Azhar
Yusif
Lahun
Gharibon
Sohba
East Of NileEast Of Nile
West Of NileWest Of Nile
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Lahun Field Bahariya Depth Structure
Lahun – 1x
N
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6060
6080
Lahun -1x U. Bahariya
= 15 % SW =32 % NP = 29 ft.
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B. Suef
Azhar
Yusif
Lahun
East Of NileEast Of Nile
West Of NileWest Of Nile
GharibonSohba
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Gharibon Field A / R “ G “ Depth Structure
Gharibon – 1x
N
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Gharibon – 1x A / R “ G – 10 “
= 21 % SW =42 % NP = 16 ft.
7108
7130
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B. Suef
Azhar
Yusif
Lahun
Gharibon
Sohba
East Of NileEast Of Nile
West Of NileWest Of Nile
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NW SE
Sohba – 1x
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Depth Structure Top A / R “E” Sand
Sohba – 1x
N
Sohba NE – 1x
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= 19 % SW =35 % NP = 23 ft.
Sohba – 1x A / R “ E “
7010
7020
O.W.C @ 7032` / - 6354`
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Oil-oil correlation for the oils recovered from Beni Suef
Concession suggests there are two oil groups .
Group I :
includes the oils that appear to be generated from
predominantly terrestrial organic matter and are
represented by Beni Suef-1X, Azhar -1X and Yusef -1X
oils. These oils appear to be generated at a high thermal
maturity ( Paraffinic waxy , high API & high Pour Point . )
Beni Suef Oils Correlation
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Group II :
represented by Azhar -7X, Azhar E-1X, Sohba -1X and
Gharibon-1X oils appears to be generated from a
predominantly marine organic matter at moderate
thermal maturity ( API 25° , pour point Zero ).
Beni Suef Oils Correlation
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Plot of Pr/n-C17 vs. Ph/n-C18 for Oils
CB DA
A : Terrestrial SourceB : Peat/Coal SourceC : Mixed SourceD : Marine Source
Oxidation
Reduction
Maturation
Biodegradation
Pr/
n-C
17
Ph/n-C18
0.01
0.10
1.00
10.00
0.01 0.10 1.00 10.00
Azhar E-1X A/R "G" 6348-6374 ft
Sohba-1X A/R "E" Sand 7020 ft
Azhar-1 Kharita 8146-8164 ft Yusef-1 L. A/R "G" 6565-6610 ft
Gharibon-1 A/R "G" 7108-7130 ft
Azhar -7X A/R G5 6325 ft
Beni Suef-1 Kharita DST # 3 7033-7075 ft Beni Suef-1 Bahariya DST # 4 6800 ft
Beni Suef-1 Bahariya RFT 6869 ft
Group “II” OilsGroup “I” Oils
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Stratigraphic column of E.Desert is similar to W.Desert with the exception that Basin inception may be controlled by Aptian/Albian NE-SW extension and resulted in the Kharita Formation being deposited directly on basement.
Major part of Beni Suef basin is located in the East of Nile
Three oil discoveries were achieved based on 2D seismic interpretation and other three oil discoveries were achieved based on 3D seismic interpretation .
Conclusions
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Geochemical studies confirmed presence of two oil families in Beni Suef basin, first is generated from lower Kharita shale & siltstones, second is generated from A/R “F”.
Basement is encountered in Azhar-2 & Azhar-5 more than 12¸000 ft which confirmed the presence of more than 1500 ft of shale & siltstone as an excellent source rock of lower Kharita.
Very high gas readings were recorded (more than 30%) while drilling L. Kharita shale & siltstones in Azhar field which could be a gas producer in future by using hydraulic frac.
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The results of this work may be applied to the south for hydrocarbon potential of other basins such as Minya & Assyut of Upper Egypt.
Conduct required geological studies to evaluate lower Kharita shales & siltstones as gas producer.
Re-evalute any dry hole well data in the light of applying hydraulic frac. and in case of having encouraged results, study the visibility of re-enter or drill a twin well.
Conduct hydraulic frac. in case of having poor oil rate or oil slugs in the testing of an exploratory well .
Recommendations
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This contribution reflects work carried out as joint Exploration team between QPC, Dana Petroleum and Apache. All staff involved are acknowledged here for their in put and efforts. In closing EGPC, QPC, Dana Petroleum and Apache Egypt management are thanked for their in put and permission to release this information.
Acknowledgement
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