The Potential Areas for Khuff Gas Reservoirs in the Arabian Peninsula,
a non-Exclusive Report
Introduction:
The compilation and maintenance of Comprehensive Regional Geological studies are essential for screening new prospects, maximizing exploration & appraisal potential, development planning or even post-abandonment analysis, when learning from mistakes is critical to determining future success. Prior to drilling, a regional study will help guide companies’ geoscientists to locate better facies development for gas or oil accumulation. After drilling and undertaking the necessary analysis; new information will feed the existing reservoir quality model, mapping, isopaching and modifying reservoir zonation in order to locate future drilling areas and avoid low reservior quality locations. In this context, a major comprehensive regional non-exclusive report is being finalized by Sandroses Geological and Petroleum Consultancies for the Khuff Formation and is being prepared for sale.
The Report Summary:
The author, Ibrahim Al Jallal is able to draw upon his 25 years experience working within Saudi Aramco, during which time he has built upon his PhD dissertation which focused upon Khuff Formation potential in the Ghawar Field, Saudi Arabia. This non-exclusive report is a collective work of published papers and posters of the Khuff during the author’s work at Saudi Aramco. These papers and posters were approved by Saudi Aramco and the Ministry of Petroleum and Minerals of Saudi Arabia at the time of publication and because these publications were scattered, the author spent significant time collecting, collating and preparing Khuff documents, maps and figures in a comprehensive presentation in one of the largest non-exclusive reports to be published on the subject. It is intended to assist companies working in Gulf countries and to help the oil and gas industry community in finding more gas in this very important formation. The author, regionally extended his original Ghawar study to encompass Gulf countries, including the western sector of Iran. So, the report includes where applicable published data from surrounding countries to encompass the overall regional setting of the Khuff Formation. The report will summarize in one single volume many years of hard work and interpretation of the Khuff Formation on a regional scale. The subjects discussed in the report are listed in the table of contents and a list of figures hereafter.
What can you get out of this report?
It is a guide for Exploration Companies working in the Gulf to show on a map, the best locations to drill for Gas and provides:-
· A guide for the companies which have already concession areas or are planning to acquire new concessions.
· An overview of the Geology of the Khuff Formation.
· A comprehensive idea on the platform configuration of the Khuff.
· A Regional understanding of Khuff facies distribution.
· An overall view of the depositional system of the Khuff.
· Insights to digenetic effects upon the Khuff.
· Reservoir development settings of the Khuff and ways to predict good locations for future drilling.
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Table of contents of the report
Executive Summary
1. Introduction and Scope of the Study
2. Methodology
3. Previous Work
4. Khuff Age
5. Paleoclimatology
6. Khuff Contacts
7. Seismic Reflection of the Khuff
8. Stratigraphic Correlation Network on the
Arabian Plate (Saudi Arabia, Kuwait, Eastern Iran,
Qatar, Bahrain, U.A.E. And Oman).
A. Stratigraphic Section No. 1
B. Stratigraphic Section No. 2
C. Stratigraphic Section No. 3
D. Stratigraphic Section No. 4
E. Stratigraphic Section No. 5
F. Stratigraphic Section No. 6
9. Khuff Subdivision Differences in the Region and
Suggested Unified Nomenclature
10. Isopach Mapping of the Khuff-D and E Members.
11. Isopach Mapping of the Khuff Formation and
Permian Sea Advancement
12. Regional Facies Mapping and Environments
of Deposition
13. Mapping Of Approximate Anhydrite Total Footage
14. Mapping of Approximate Total Porosity Footage
15. Reservoir Potential of the Khuff Formation in
Arabian Peninsula (Saudi Arabia, Kuwait,
Bahrain, Qatar, UAE and Oman)
A. Excellent Reservoir Area
B. Very Good Reservoir Areas
C. Good Reservoir Areas
D. Poor to Variable Reservoir Areas
16. Summary, Conclusions, Recommendations and
Fields/Prospects Review of the Arabian Peninsula
(Saudi Arabia, Kuwait, Bahrain, Qatar, UAE and
Oman)
A. Excellent -very good Reservoir Areas
B. Good Reservoir Areas
C. Good to Variable Reservoir Areas
D. Central Arabia Reservoir Areas
E. Poor to variable Reservoir Areas
F. Poor Reservoir Areas
| List of Figures
Figure 1: Subsurface stratigraphic position of the
Khuff Formation.
Figure 2: Khuff Formation age and stratigraphy com-
parison with surrounding areas., a A 2b
Figure 3: a) Gondwanaland geography, modern world.
b) Gondwanaland early late Permian.
c) Tectonic map showing Arabian plate and
Iran in early Triassic time.
Figure 4: Seismic Reflections of Khuff layers
Figure 5: Lines of cross sections.
Figure 6: Stratigraphic section 1.
Figure 7: Stratigraphic section 2., a & 7b
Figure 8: Stratigraphic section 3., a & 8b
Figure 9: Stratigraphic section 4.
Figure 10: Stratigraphic section 5., a & 10b
Figure 11: Stratigraphic section 6., a & 11b
Figure 12: Khuff nomenclature in Saudi Arabia, Iran,
UAE and Oman.
Figure 13: Suggested Khuff nomenclature.
Figure 14: Khuff-D and E Isopach map
Figure 15: Total Isopach map of the Khuff Formation
in Saudi Arabia and Surrounding Areas
Figure 16: Total Khuff Isopach ranges
Figure 17: Sea advances during Permian time.
Figure 18: Major environments of deposition and
regional facies of the Khuff Formations.
Figure 19: Major environments of deposition and
regional facies overlaid on Khuff isopach.
Figure 20: Block profile major environments, deposition,
facies of Khuff Formation&localities.
Figure 21: Anhydrite total footage, Khuff Formation.
Figure 22: Anhydrite total footage ranges overlaid on
Khuff isopach
Figure 23: Approximate total porosity footage map of
the Khuff Formation
Figure 24: Approximate total porosity footage
overlaid on Khuff isopach
Figure 25: Reservoir potential of Khuff Formation.
Figure 26: Regional structural elements eastern Saudi
Arabia and adjacent areas.
Figure 27: Existing Oil & Gas fields, GCC countries.
Figure 28: Reservoir potential of the Khuff Forma-
tion overlaid on existing fields.
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