Regional Geology and Hydrocarbon Potential of the Tatar Strait Sector

A Dalwave Study

Table of Contents

Introduction

• Study Area location

• Exploration History

• Play Concepts

• Stratigraphic Terminology

• Seismic Horizons

• Seismic Anomalies

• Time-Depth Conversion

Regional Tectonics

• Tectonic Framework

• Deep Structure

• Pacific Plate Motion

• Major Structural Elements

• Basins and Troughs

  • Ishikary-W. Sak Basin

  • South Tatar Basin 

  • North Tatar Basin

• Major Uplifts

  • West Sakhalin Uplift

  • West Sakhalin Fold Zone

  • Moneron Uplift

  • Lopatin Plateau

  • Sovgavan Uplift

  • Pioner Uplift

  • Kholmsk Uplift

• Faulting

  • Central Sakhalin Fault

  • West Sakhalin Fault

  • North Japan Sea Fault

  • Central Tatar Fault

  • Sovgavan Fault

Stratigraphy

• Mesozoic 

• Pre-Late Cretaceous

• Late Cretaceous

  • Ayskaya Suite

  • Naybin Suite

  • Bykov Suite

  • Krasnoyarkov

• Paleogene

  • Paleocene-Eocene

    • Naibutin Suite

    • Takaraday Suite

  • Oligocene

    • Arakai Suite

    • Kholmsk Suite

    • Nevelsk Suite

    • Chekhov Suite

    • Kholmsk-Nevelsk

• Neogene 

  • Lower-Middle Miocene

    • Verkneduisk Complex

    • Verkneduisk Suite

    • Sertunai Suite

    • Ausinsk Suite

    • Verkhneduisk, Sertunai

  • Middle-Upper Miocene - Kurasai

  • Upper Miocene-Pliocene - Maruyam

• Oil and Gas

  • Izylmetiev Gas Field

  • Reservoirs and Oil/Gas 

  • Reservoirs and Oil/Gas Shows

  • Cretaceous

  • Paleogene

  • Paleocene-Eocene

  • Oligocene-Lower Miocene

  • Neogene

  • Lower Miocene

  • Middle-Upper Miocene

  • Upper Miocene-Pliocene

  • Discussion

• Source Rocks

  • Upper Cretaceous

  • Paleocene-Eocene Complex

  • Oligocene-Lower Miocene

  • Verkhneduisk and Sertunai

  • Kurasai and Maruyam Suites

  • Discussion

• Maturation and Migration

• Major Seals

• Structures and Potential Traps

  • Ishikary-West Sakhalin Basin

  • South Sakhalin Basin 

  • North Sakhalin Basin

Exhibits

• Aleksandrov #1 Lith-Strat Section 

• Ilinsk #1 Lith-Strat Section   

• Izylmetiev #2 Lith-Strat Section 

• Vindissk #1 Lith-Strat Section 

• South Nevelsk #6 Lith-Strat Section   

• Bolshekholmsk #6 Lith-Strat Section   

• Uglov #1 Lith-Strat Section   

• Aleksandrov #1 Geochem Section

• Izylmetiev #2 Geochemical Section

• Krasnogorsk #1 Geochemical Section

• SW Sakhalin Regional Cross Section

• Regional Seismic Coverage Map

• Seismic Coverage Map

• Tectonic Map

• Anomaly Index Map

• Seismic Time Structure Maps 

  • Top Kurasai 

  • Top Verkneduisk

  • Top Kholmsk-Nevelsk

  • Acoustic Basement

• Seismic Depth Structure Maps

  • Top Kurasai

  • Acoustic Basement

• Seismic Isochron (Isopach) Maps

  • Kurasai Complex

  • Verkneduisk (Uglegorsk)

  • Snezhin-Kholmsk-Nevelsk Complex

• Residual Gravity Map

• Magnetic Anomalies Map

• Velocity Zone Distribution Map

• Seismic Time Sections

  • 2283-337 Regional, Syurkum

  • 2283-286 Aleksandrov

  • 1486-420 Regional

  • 1486-420A Regional

  • 1486-435 Kamensk, Uzhnaya

  • 1486-451 Regional

  • 1486-476 Izylmetiev, Gavrilov, Nadezhdin

  • 2180-223 Krasnogorsk

  • 1889-08 Regional

  • 1889-38 Regional, Moneron

  • 1889-56 Regional, Pioner, Kholmsk

  • 2789-17 Regional, Primaterik 

  • 3190-96 Vindissk

  • 1376-164 Kuznetsov, Moneron

  • 1889-23 Kholmsk area 

  • 1889-55A Kholmsk, Slepikov

  • 2283-316 Regional

Text Figures

• Cenozoic Pacific Plate Motion

• Cretaceous Paleogeography

• L-M Miocene Paleogeography

• Sedimentary Cover - Sea of Japan

• Central Sakhalin Fault 

• Strike-slip faults -Stress Diagram

• Regional NE-SW Transforms

• Mesozoic-Cenozoic Basins

• Izylmetiev Gas Field

• Organic Maturation Chart

Tables

• Porosity-Perm: Aysk sandstone

• Porosity-Perm: Naybin sandstone

• Vindissk #1 - U Cret geochem

• Geochem Paleocene-Eocene 

• Geochem Oligocene-L Miocene

• Geochem Lower Miocene 

• Geochem Mid Miocene-Quaternary 

• Geochem - Uglegorsk offshore

• Geochem - Aleksandrov #1 

• Oil Analysis

• Tatar Straits Oil and Gas Shows

• Prospective Structures and Traps

Play concepts

• Kholmsk Stratigraphic Trap

• Slepikov Combined Trap

• Moneron Stratigraphic Trap

• Primor Stratigraphic Trap

• Kamensk Structural-Strat Trap

• Boshnyakov Combined Trap

• Dzhuklin Combined Trap