East Schmidt Sector
Regional Geology and Hydrocarbon Potential
     

 

Regional Geology and Hydrocarbon Potential of the East Schmidt Sector

A Dalwave Study

 

Includes:

  • Study text

  • Gravity, magnetic maps

  • Seismic structure and isochron maps

  • 780 km seismic data (full scale)

  • Lithologic and geochem sections
   

Table of Contents

Introduction

  • Study Area - General

Offshore Exploration History

  • Geophysical Exploration

  • Drilling

  • Present Status

Structure of the Study Area

  • Regional Tectonics

  • Major Structural Elements

    • North Sakhalin Basin, East Sakhalin Uplift

    • Schmidt Uplift

    • East Sakhalin Basin

    • Okhotsk, Aleksandrov, Kashevarov Uplifts

  • Regional Isopach Variations

    • Pilsk Complex

    • Nutov Complex

    • Pomyr Complex

Stratigraphy

  • General Stratigraphy

  • Basement

  • Lower Cretaceous Sediments

  • Upper Cretaceous Sediments

  • Paleogene Complex

    • Machigar Suite

    • Daekhuriin Suite

  • Neogene

    • Pilsk Complex - Study Area

    • Pilsk Complex - Onshore, Sak III

      • Uynin

      • Dagin

      • Okobykay

    • Nutov Complex

      • Nutov Reservoirs - Offshore Fields

    • Pomyr Complex 

Oil and Gas Fields

  • General

  • Onshore Oil Fields

    • Okha Field

    • East Ekhabi Field

    • Kolendo Field

  • Offshore Fields

    • Odoptu Field

    • Arkutun-Dagi Field

Source Rocks

  • Cretaceous

  • Paleogene

  • Lower-Middle Miocene

  • Upper Miocene-Pliocene

Geophysical Exploration

  • General Seismic Character

  • Seismic Direct Hydrocarbon Indicators

  • Time-Depth Conversion

  • Geochemical Surveys

Hydrocarbon Prospectivity

  • Odoptu Structural Zone

    • East Kaigan (coastal) Field

    • Khanguz Structure

    • Keutu Structure

    • Greater Ombin Uplift

  • East Odoptu Anticlinal Zone

    • Greater Kaigan Anticlinal Complex

      • Structural Development

      • Geophysical Anomalies - S. Kaigan

      • Geophysical Anomalies - Kaigan

      • Geophysical Anomalies - N. Kaigan

      • Geophysical Anomalies - E. Kaigan

  • Trekbrat Anticlinal Zone

  • East Schmidt Anticlinal Zone

    • East Schmidt Anticline

    • Savit Anticline

      • Geophysical Anomalies

    • Udachny and Vasyukhan Anticlines

      • Geophysical Anomalies

  • Sakhalin and Glubokaya Anticlinal Zones

  • Elizavethin Anticlinal Zone

Conclusions

STUDY EXHIBITS

  • Bathymetric map
  • Seismic and well coverage map 
  • Tectonic map 
  • Surface geology map
  • Seismic depth structure map - Top Paleogene
  • Seismic depth structure map - Top Pilsky
  • Seismic depth structure map - Top Nutov
  • Seismic isopach map - Pilsk 
  • Seismic isopach map - Nutov 
  • Residual gravity anomaly map
  • Magnetic field map
  • Heavy hydrocarbon concentration map
  • Lithologic/Stratigraphic section - Khanguz #1 
  • Geochemical analysis section - Khanguz #1 
  • Lithologic/Stratigraphic section - Odoptu #1 
  • Lithologic/Strat section - East Kaigan #1 
  • Lithologic/Strat section - Kolendo #157
  • Seismic - Migrated time section, line 219018 
  • Seismic - Migrated time section, line 219014 
  • Seismic - Migrated time section, line 219007 
  • Seismic - Migrated time section, line 219047 
  • Seismic - Migrated time section, line 219043 
  • Seismic - Migrated time section, line 219035 
  • Seismic - Migrated time section, line 219023 
  • Seismic - Migrated time section, line 199018 
  • Seismic - Migrated time section, line 1990018 
  • Preserved amplitude section - line 219018
  • Preserved amplitude section - line 219014
  • Preserved amplitude section - line 219007 
  • Preserved amplitude section - line 219007 
  • Preserved amplitude section - line 219043 
  • Preserved amplitude section - line 219035
  • Preserved amplitude section - line 219023
  • Seismic stack time section, line 18C79750 
  • Seismic stack time section, line 2190-67
  • Seismic stack time section, line 2190-06
  • Absolute velocity sections - 219007, 219014, 219018, 219023, 219035, 219047 
  • Instantaneous velocity - lines 219014, 219018 
  • Cross Section: Kolendo - Khanguz - Keutu
  • Lithologic section - Keutu area
  • Composite Seismic Line: Odoptu field - South Kaigan 
  • Composite Seismic Line: East Kaigan field - Khanguz - North Kaigan Structures

Text Figures

  • Index Map - Northern Sakhalin

  • Generalized Strat Section - East Schmidt Area

  • East Ekhabi Field - Structure Map

  • East Ekhabi Field - Schematic Cross Section

  • Kolendo Field - Structure Map

  • Velocity Distribution Map (Time-Depth Conversion) 

  • Velocity Curves (Time-Depth Conversion)