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Scientific Investigations Report 2011–5010

Shahejie−Shahejie/Guantao/Wumishan and Carboniferous/Permian Coal−Paleozoic Total Petroleum Systems in the Bohaiwan Basin, China (based on geologic studies for the 2000 World Energy Assessment Project of the U.S. Geological Survey)

By Robert T. Ryder, Jin Qiang, Peter J. McCabe, Vito F. Nuccio, and Felix Persits

Thumbnail of and link to report PDF (2.95 MB)Abstract

This report discusses the geologic framework and petroleum geology used to assess undiscovered petroleum resources in the Bohaiwan basin province for the 2000 World Energy Assessment Project of the U.S. Geological Survey. The Bohaiwan basin in northeastern China is the largest petroleum-producing region in China. Two total petroleum systems have been identified in the basin. The first, the Shahejie–Shahejie/Guantao/Wumishan Total Petroleum System, involves oil and gas generated from mature pods of lacustrine source rock that are associated with six major rift-controlled subbasins. Two assessment units are defined in this total petroleum system: (1) a Tertiary lacustrine assessment unit consisting of sandstone reservoirs interbedded with lacustrine shale source rocks, and (2) a pre-Tertiary buried hills assessment unit consisting of carbonate reservoirs that are overlain unconformably by Tertiary lacustrine shale source rocks.

The second total petroleum system identified in the Bohaiwan basin is the Carboniferous/Permian Coal–Paleozoic Total Petroleum System, a hypothetical total petroleum system involving natural gas generated from multiple pods of thermally mature coal beds. Low-permeability Permian sandstones and possibly Carboniferous coal beds are the reservoir rocks. Most of the natural gas is inferred to be trapped in continuous accumulations near the center of the subbasins. This total petroleum system is largely unexplored and has good potential for undiscovered gas accumulations. One assessment unit, coal-sourced gas, is defined in this total petroleum system.

First posted June 29, 2012

For additional information contact:
Christopher J. Schenk
U.S. Geological Survey
MS 939, Box 25046
Denver, CO 80225

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Suggested citation:

Ryder, R.T., Qiang, Jin, McCabe, P.J., Nuccio, V.F., and Persits, Felix, 2012, Shahejie−Shahejie/Guantao/Wumishan and Carboniferous/Permian Coal−Paleozoic Total Petroleum Systems in the Bohaiwan Basin, China (based on geologic studies for the 2000 World Energy Assessment Project of the U.S. Geological Survey): U.S. Geological Survey Scientific Investigations Report 2011–5010, 89 p. Available only at http://pubs.usgs.gov/sir/2011/5010.



Contents

Foreword

Abstract

Acknowledgments

Introduction

Province Geology

Exploration History

Shahejie−Shahejie/Guantao/Wumishan Total Petroleum System (312701)

Carboniferous/Permian Coal–Paleozoic Total Petroleum System (312702)

Summary

References Cited


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