Levant Basin Geology and Hydrocarbon Potential Dr. Michael - PowerPoint PPT Presentation

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