High Resolution Sequence Stratigraphy Characteristics and Distribution of Donghe Sandstone in Qunkuqiake Region in Tarim Basin

Abstract:

Qunkuqiake Region is an important exploration block in Tarim Basin. Donghe Sandstone is the main oil and gas target stratum. In order to reveal the rules of migration of the sand body and predict the favorable reservoir accurately, two high-frequency cycles are identified in Donghe Sandstone each of which consists of rising hemicycle and descending hemicycle, the sedimentary characteristics are analysed within the sequence stratigraphic framework and the barrier bar subfacies are identified beginning with the sedimentary characteristics of glutenite through the study of drilling stratigraphic section using drilling data, well logging data and cores data. This paper has disclosed the transition of the sedimentary environment from barrier-free coast system to barrier coast system during the period from rising hemicycle to descending hemicycle and the planar distribution of sedimentary facies of different high frequency sequence of Donghe Sandstone.

• Periodical: Advanced Materials Research (Volumes 1044-1045)
• Pages: 570-573
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1044-1045.570
• Online since: October 2014
• Authors: Mu Wei Cheng*
• Keywords: Barrier Bar, Donghe Sandstone, High Frequency Cycle, Planar Distribution, Sedimentary System

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