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March 30, 2026Scientific ReportsOpen Access

Controls on hydrocarbon accumulation in ultra-deep carbonate reservoirs of the Ordovician Yingshan Formation, Catake Uplift, Tarim Basin

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Authors

LWLingda WangChina University of Mining and TechnologyRYRuizhao YangChina University of Mining and TechnologyFGFeng GengSinopec (China)

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Overview

Analysis of hydrocarbon accumulation in deep carbonate reservoirs highlights key geological factors, suggesting effective exploration strategies.

Key Points

  • The research aims to identify factors controlling hydrocarbon accumulation in ultra-deep carbonate reservoirs.
  • Systematic analysis of seismic, logging, and core data from the Yingshan Formation.
  • Examination of the effects of tectonic and karstification processes on reservoir quality.
  • Comparative analysis with existing drilling data to identify key reservoir conditions.
  • Yingshan Formation reservoirs display low porosity and permeability.
  • Multi-stage tectonic-karstification is crucial for reservoir effectiveness.
  • Reservoir types largely consist of dissolution pores, vugs, and structural fractures.
  • NE-trending strike-slip faults act as important migration pathways for hydrocarbons.
  • Three core conditions identified as essential for high-quality reservoirs: effective migration system, developed fracture-vug bodies, and favorable structural conditions.

Cite This Study

Wang et al. (2026) studied this question.

synapsesocial.com/papers/69ca134b883daed6ee095304https://doi.org/10.1038/s41598-026-44873-y
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