TITLE:
The Seismic-Geological Comprehensive Prediction Method of the Low Permeability Calcareous Sandstone Reservoir
AUTHORS:
Hongyan Jiao, Zhiying Ding
KEYWORDS:
Calcareous Sand-Stone, Geostatistical, Reflection Amplitude, Calcareous Forward Modeling, Reservoir Prediction
JOURNAL NAME:
Open Journal of Geology,
Vol.6 No.8,
August
12,
2016
ABSTRACT: Currently in Niu-zhuang sub-sag, the seismic
reflection amplitude of the newly discovered turbidite sandstone is stronger in
the third Segment. The main reason is that Calcareous components accounts for a
large part and physical properties is relatively poor, which results in no
corresponding relation between reservoir and seismic attributes, and effective
reservoir is difficult to predict and describe. Therefore, using the method of
geological statistics, we firstly study the distribution of calcareous matters,
secondly study the contribution to seismic reflection amplitude made by
Calcareous high impedance component; thirdly analyze its influence on actual
seismic reflection amplitude and determine the lithology thickness of
Calcareous via replacement forward modeling. At last, we characterize the
reservoir using the amplitude of calcareous matters. It proves that the method
of seismic-geological comprehensive prediction is reliable. It has good
guidance for exploration and development of the calcareous sand lithologic
reservoir in similar areas.