TITLE:
Development Model and Quantitative Prediction of Igneous Rock in S Oilfield, the Bohai Sea Area
AUTHORS:
Xijie Wang, Jianmin Zhang, Youchun Lai, Shicong Lyu, Jiaqi Liu
KEYWORDS:
Igneous Rock, Facies Model, Volcanic Institutions, Seismic Attribute
JOURNAL NAME:
Journal of Geoscience and Environment Protection,
Vol.11 No.5,
May
30,
2023
ABSTRACT: The structure of S Oilfield of Bohai sea area in China is located in the
low uplift slope zone of the Dongwa Laibei area in the Huanghekou depression.
The target interval of the oilfield belongs to the Paleogene layered structural
oil reservoir under the influence of igneous rocks. Due to the widespread
development of igneous rocks, and the diversity of igneous rock types, the
structure is complex, and the lateral changes are intense. The differences in
volcanic eruption intensity and volcanic materials made the igneous rock masses
overlap each other, with rapid changes in lithofacies, and complex seismic
reflection structures. Therefore, it was difficult to carry out fine
characterization of igneous rocks. Based on the lithofacies model, lithofacies
combination types, and seismic response characteristics of volcanic mechanisms,
this paper summarized three types of development models of volcanic mechanisms
in the study area. At the same time, through technical means such as
stratigraphic slicing, seismic attribute extraction, and attribute optimization
analysis, the spatial distribution characteristics of various facies zones of
igneous rocks at different stages were described in detail, achieving precise
prediction of igneous rocks in Bozhong S Oilfield. During the development
process of the oilfield, the technical research results guided the optimization
of well locations and provided technical support for the efficient development
of the oilfield.