TITLE:
The Fluid Identification Forward Modeling Study of Carbonate Cave Reservoir
AUTHORS:
Xiaoming Yang, Yanchun Wang, Jianxin Wei, Bangrang Di
KEYWORDS:
Carbonate Reservoir, Fluid Identification, Numerical Simulation, AVO Response
JOURNAL NAME:
International Journal of Geosciences,
Vol.10 No.4,
April
17,
2019
ABSTRACT: The fluid
identification of carbonate reservoir is a key factor to hydrocarbon
exploration and reservoir development. In order to simulate the seismic
response characteristics of the cave in the carbonate reservoir, three sets of
models were designed, including the caves varied in width, the caves filled
with different solids, and the oil-gas-water model. The numerical simulation
technique was used to carry out the forward modeling and the AVO (Amplitude
varies with offset) response characteristics of the three groups of models were
analyzed. The results show that the AVO characteristics can be observed when
the cave reaches a certain extent in the horizontal direction. When the
surrounding rock is constant, the absolute value of the intercept of the AVO curve
increases with the Vp/Vs decrease. The AVO
technology can effectively identify the gas cave. The effect is not obvious to
water or oil cave.