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Article Navigation >  PETROLEUM GEOLOGY & EXPERIMENT  > 2010  >  32(6): 521-526
Lv Xiuxiang, Yang Haijun, Bai Zhongkai, Lei Ganglin, Liu D, an. HYDROCARBON EXPLORATION PROSPECTS IN THE EAST SECTION OF THE MAIGAITI SLOPE IN THE TARIM BASIN[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2010, 32(6): 521-526. doi: 10.11781/sysydz201006521
Citation: Lv Xiuxiang, Yang Haijun, Bai Zhongkai, Lei Ganglin, Liu D, an. HYDROCARBON EXPLORATION PROSPECTS IN THE EAST SECTION OF THE MAIGAITI SLOPE IN THE TARIM BASIN[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2010, 32(6): 521-526. doi: 10.11781/sysydz201006521
shu

HYDROCARBON EXPLORATION PROSPECTS IN THE EAST SECTION OF THE MAIGAITI SLOPE IN THE TARIM BASIN

doi: 10.11781/sysydz201006521
  • 1.

    College of Geosciences, China University of Petroleum, Beijing 102249, China

  • 2. State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China

  • 3. Exploration and Development Research Center, Tarim Oilfield Branch, CNPC, Korla, Xinjiang 841000, China

  • Received Date: 2010-01-25
  • Rev Recd Date: 2010-10-08
  • Publish Date: 2010-12-28
    Abstract
  • It was considered that the east section of Maigaiti Slope in the Tarim Basin had the favorable conditions for hydrocarbon accumulation. Cambro-Ordovician hydrocarbon source rocks and a set of carboniferous oil source rocks with high abundance which develop in this area provide material foundations for the formation of large oil/gas fields in this area. There are several reservoir-seal assemblages in the Maigaiti Slope. One is the assemblage of Ordovician weathered crust of the buried hill as reservoir bed, and Silurian mudstone and Carboniferous lower mudstone member as seals. The other is the assemblage of the Carboniferous glutenite member and bioclast limestone member as reservoir bed, and low mudstone member and medium mudstone member as seals. Reservoir beds with favorable reservoir condition are distributed stably, and seals are in perfect condition. Favorable reservoir-seal asseinblages provide favorable foundation for hydrocarbon enrichment. Maigaiti Slope experienced development processes of north dipping slope during Cambro-Ordovician and south dipping slope since Carboniferous period, and is located at pivot part of the tectonic movement, which is favorable for the hydrocarbon accumulation and the later storage. It is a favorable area for the hydrocarbon accumulation and reservoir with favorable hydrocarbon prospects. It is predicted that Ordovician buried hill and Carboniferous anticline reservoir in the east section of Maigaiti Slope should be the main objects for the further exploration.

     

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