干旱区生态环境知识资源中心(Arid): Problem of unexpected water production with water saturation less than 40%: A case study from Alam El Bueib Formation, Safir Oil Field, Shushan Basin, Western Desert, Egypt

Arid

DOI	10.1007/s12517-021-07061-y
	Problem of unexpected water production with water saturation less than 40%: A case study from Alam El Bueib Formation, Safir Oil Field, Shushan Basin, Western Desert, Egypt
	Elhossainy, Mohamed Mahmoud; Basal, Ahmed Kamal; ElBadrawy, Hussein Tawfik; Salam, Sobhy Abdel
通讯作者	Elhossainy, MM (corresponding author), Kafrelsheikh Univ, Fac Sci, Geol Dept, Kafrelsheikh 33516, Egypt.
来源期刊	ARABIAN JOURNAL OF GEOSCIENCES
ISSN	1866-7511
EISSN	1866-7538
出版年	2021
卷号	14 期号:8
英文摘要	Safir Oil Field which locates within Shushan Basin is considered one of the well-known oil fields in northern Western Desert of Egypt. Alam El Bueib 3A Member is the main oil producer in this field. This member in Safir-N07 well has water saturation (S-w) values less than 40% with 17% porosity. However, the available data of Drill Stem Test (DST) indicate that 999 barrels water per day (BWPD) and only one barrel oil per day (BOPD) of total 1000 barrels fluid per day (BFPD) were produced. This represents a challenging problem facing any petrophysicist. The presented article treats this situation by comparing water saturation with other two extremely important petrophysical parameters. These are the critical water saturation (S-cw) and minimum bulk volume water (BVWmin). The critical water saturation (S-cw) of the tested interval is 34%, which is less than the calculated S-w (i.e., S-w > S-cw) that reflects the existence of water rather than oil. In addition, BVWmin has been calculated to be 0.05. The calculated BVW for AEB-3A Member (phi x S-w) is 0.07 which is higher than the BVWmin value confirming the water productivity and matching the DST data. The presented technique was also applied to the same member in Safir-03 well in the same field. The calculated S-w and BVW are 12% and 0.03, respectively, which are lower than S-cw (31%) and BVWmin (0.05) indicating that the reservoir is at irreducible state (no water will produced). During DST, this member recovered 1350 (BOPD) and zero (BWPD) confirming the importance and validation for the applied techniques. The constructed structure contour map shows a distinctive three-way closure in the southern part of the study representing a suitable place for hydrocarbon accumulation in Safir-03 well. On the other side of this map displays Safir-N07 well located in downthrown which proves oil-free production as residual oil saturation.
英文关键词	Shushan Basin Safir Oil field Alam El Bueib Formation Critical water saturation minimum bulk volume water Petrophysical parameters
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000641458000001
WOS关键词	KHATATBA FORMATION
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349563
作者单位	[Elhossainy, Mohamed Mahmoud; ElBadrawy, Hussein Tawfik; Salam, Sobhy Abdel] Kafrelsheikh Univ, Fac Sci, Geol Dept, Kafrelsheikh 33516, Egypt; [Basal, Ahmed Kamal] Damietta Univ, Fac Sci, Geol Dept, New Damietta, Egypt
推荐引用方式 GB/T 7714	Elhossainy, Mohamed Mahmoud,Basal, Ahmed Kamal,ElBadrawy, Hussein Tawfik,et al. Problem of unexpected water production with water saturation less than 40%: A case study from Alam El Bueib Formation, Safir Oil Field, Shushan Basin, Western Desert, Egypt[J],2021,14(8).
APA	Elhossainy, Mohamed Mahmoud,Basal, Ahmed Kamal,ElBadrawy, Hussein Tawfik,&Salam, Sobhy Abdel.(2021).Problem of unexpected water production with water saturation less than 40%: A case study from Alam El Bueib Formation, Safir Oil Field, Shushan Basin, Western Desert, Egypt.ARABIAN JOURNAL OF GEOSCIENCES,14(8).
MLA	Elhossainy, Mohamed Mahmoud,et al."Problem of unexpected water production with water saturation less than 40%: A case study from Alam El Bueib Formation, Safir Oil Field, Shushan Basin, Western Desert, Egypt".ARABIAN JOURNAL OF GEOSCIENCES 14.8(2021).