Levant Basin Geology and Hydrocarbon Potential Dr. Michael Gardosh Head of Geology and Geophysics Department Ministry of National Infrastructure, Energy and Water Resources
Main Topics: Main Characteristics of the Levant Basin Highlights of Basin Analysis Levant Basin Plays SEA
The Levant Basin – A World-Class Hydrocarbon Province in the SE Mediterranean Sea
Gas and Oil Fields Offshore Israel Gas and oil fields throughout the - 200 0 basin in both shallow and deep Karish Aphro dite/Is hai water Tanin Very high rate of success in drilling Tamar Leviathan Tamar the gas play (> 60%) Dalit SW Dolphin Sub-commercial (at time of discovery) but important oil fields Favorable geologic conditions for Shimshon generation and accumulation of gas Legend: Noa Oil Field and oil Gaza MariB Gas Field Marine Pipelines
Geologic Setting Mediterranean Early Mesozoic Sea Extension Eratosthenes Levant Seamount Cenozoic Basin Compression Nile Delta Sinai sub -plate 200 km
Levant Structural and stratigraphic Framework Top Middle Middle Base Middle Middle Basement Top Base Sea SE chaotic Miocene Miocene Oligocene Cretaceous Jurassic ( pre-Jurassic) NW Messinian Messinian bottom unit Unc. Section 1 Plio-Pleistocene Messinian 1s TWT
Basin Analysis Study Offshore Israel An integrated Basin Analysis Study was conducted by Beicip-FranLab in 2015 Project goals: Define Petroleum Systems and Plays Estimate the amount of hydrocarbon resources (Unrisked, Yet-To-Find, Recoverable) Identify favorable areas for exploration Provide a regional 2D and 3D integrated models Regional Geologic Section used for 2D Modelling
Basin Analysis- Source Rock Potential Main Results: TOC (%) TOC (%) TOC (%) TOC (%) Good source rock for Biogenic Gas in the Oligocene, Miocene and Pliocene (TOC 0.5-1.5%) Good source rock Jurassic 2 intervals for Oil and Gas in the Lower and Upper Jurassic and Middle Jurassic 1 Cretaceous Jurassic TOC Correlation Difference between pessimistic and optimistic scenarios TOC value Possible correlation
Basin Analysis - Maturity Reconstruction Main Results: The Oligo-Miocene is in the immature zone (Ro < 0.6%) The Cretaceous is within the oil to light oil zone (0.6 -1.4 Ro) The Upper Jurassic can reach the dry thermogenic gas zone
Basin Analysis- Pressure Regime Main Results: The basin appears to be vertically and latterly compartmentalized Salt and shale units form law permeability pressure barriers Overpressure (Mpa)
Basin Analysis-Maturation and Expulsion of Hydrocarbons B C A Transformation Ratio Mass of expelled Oil Mass of expelled Gas Time (Ma) Time(Ma) Time (Ma) Maturation map of Upper Jurassic (Kimmeridgian) source rock Present-day
Basin Analysis – Petroleum System Chart Biogenic gas charge Oil and gas charge
Basin Analysis - YTF Prospective Resources TOTAL OIL GAS TOTAL GAS OIL Oligo- Category of Jurassic Jurassic Miocene MIddle Prospective Oil Lower Lower Middle Middle (ABCD Upper Pliocene and Gas Cetaceous Cretaceous +Upper +Upper sands and Miocene Resources equivalent) Billions Billions Billions BCM BCM BCM BCM BCM BCM bbl bbl bbl 2137 (2) YET-TO-FIND in 6.6 1.2 5.4 149 340 1089 238 321 Place Best Estimate (75 TCF) A cumulative analysis of the potential traps shows that 6.6 Billon Barrels of Oil and 2137 BCM of gas (In Place) may yet to be found in the basin
Basin Analysis – Petroleum Systems and Plays Main Results: Four main Hydrocarbon plays, three of them proven (Pliocene, Oligo-Miocene, Jurassic) and one is speculative (Cretaceous). Additional traps are likely found in all plays. U.Miocene / ? Pliocene Play Oligo- ? Mediterranean Sea Miocene ? ? Play ? ? ? L.Cretaceous ? Play Jurassic Play
Oligo-Miocene Play (Tamar Sands)
Pliocene Play (Yafo Sands) OR-1 B A B A Plio-Pleistocene Nir MariB Noa Miocene The Yafo Fan Complex
Leviathan-1 Lower Cretaceous Play
Carbonate Buildup Play Zohr ENI (2014) Mira-1 Oligo-Miocene Top Basement Depth Jonah High
Strategic Environmental Assessment (SEA) In 2014 the Ministry launched an integrated study to estimate the environmental vulnerability in Mediterranean Sea offshore Israel. The SEA was to designed to support the decision making process in allocating new exploration blocks. The study was performed in collaboration with the Israeli Oceanographic Research Institute (IOLR) and included a comprehensive sampling program of the water and the sea-floor sediments in more then 50 locations, as well as analysis of large amount of scientific and industrial data. More the 60 marine benthic habitats were identified and their environmental vulnerability to E&P activity was evaluated. Throughout the SEA process the Ministry conducted consultations and sharing of knowledge and results with other ministries, NGO’s and the general public
Strategic Environmental Assessment-Results The SEA showed that most of the offshore area is of low vulnerability to E&P activity. The more sensitive areas are located near the shallow-shelf and upper continental slope of the Mediterranean Sea. As a result of this study the eastern part of the EEZ was excluded from the 1 st offshore bid round. The area of the present bid blocks is considered of low environmental vulnerability although the knowledge gap is still high.
First Offshore Bid Round - Blocks for bidding The Tender Documents can be found at www.energy-sea.gov.il
We Invite you to Participate in our Offshore Success More information and updates: WWW. energy-sea.gov.il
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