鄂尔多斯盆地子北油田涧峪岔地区长6油层沉积微相识别与分布特征

Abstract

Abstract:

By means of comprehensive study on petroleum geology, modern test technology，well logging technology, and the combination of macroexamination with microexamination, regional information with well data, through the petrology, grain size, signs of logging, etc, the authors studied micro-sedimentary facies and distribution law for the Chang 6 reservoir of Triassic in Jianyucha region in Zibei oil field. New understanding of sedimentary microfacies is concluded as followed：Chang 6 reservoir belongs to the delta plain distributary channel sedimentary which includes two main types of sedimentary microfacies-distributary channel and distributary bay.The sandbody is controled by distributary channel which alignment is from northeast to southwest, and the main sandbody trend and distribution have a certain succession in profile section. The delta plain distributary channel sedimentary is beneficial to oil-gas gathering.

Key words: Ordos basin, Jianyucha region, Triassic, delta plain, distributary channel, oil fields

CLC Number:

TE122．2

CAO Jin-zhou, REN Zhan-li, GAO Xin-jun, KANG Li-ming, ZHANG Na, HAN Wei, WANG Min. Characteristics of Sedimentary Micro-Facies for Chang 6 Reservoir in Jianyucha Region of Zibei Oilfield in Ordos Basin[J].J4, 2010, 40(1): 30-37.

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Characteristics of Sedimentary Micro-Facies for Chang 6 Reservoir in Jianyucha Region of Zibei Oilfield in Ordos Basin