Lithologic Reservoir Prediction of Saertu Formation in  Taikang-Xichao Area of North Songliao Basin

Abstract

Abstract:

Daqing oilfield has been explored in a high degree, so exploring lithology reservoir become a very important way to increase the oilfield reserves. According to TaikangXichao area geology setting that is a flat monocline, this thesis studied the petroleum geology condition of forming lithology reservoir based on geology structure character, hydrocarbon source rock, sedimentary character and hydrocarbon migration. In S2+3, S1, S0, upward pinchout, formation onlap, sand lens and combination lithology reservoir are developed, and this study also characterize these different lithology reservoir formation characters. By combining depositional subfacies distribution study and post-seismic impedance inversion study, the main lithology reservoir distribution of this area is predicted, and it is considered that formation onlap lithology reservoir and combination reservoir are mainly developed in S2+3.Onlap lithology reservoir are mainly distributed in the middle and west area, and the combination reservoir is mainly distributed on Alaxin tectonic belt. Upward pinchout, formation onlap, sand lens lithology reservoir are all developed in S2+3,S1,S0.This lithology reservoir study is significant to the future hydrocarbon exploration.

Key words: sand lens;formation onlap;lithologic reservoir, Taikang uplift;Songliao basin

CLC Number:

TE122.2

ZHANG Yin-Guo, LI Yu-Le. Lithologic Reservoir Prediction of Saertu Formation in Taikang-Xichao Area of North Songliao Basin[J]. Geoscience, 2010, 24(4): 694-702.

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Lithologic Reservoir Prediction of Saertu Formation in Taikang-Xichao Area of North Songliao Basin

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