What about the sensitivity of delta facies seismic attributes?
How do mountains form? What forces are needed to carve out a basin? Why does the Earth tremble and quake?
Earth scientists pursue these fundamental questions to gain a better understanding of our planet's deep past and present workings. Their discoveries also help us plan for the future by preparing us for earthquakes, determining where to drill for oil and gas, and more.
Now, Zhao Wang published an analysis of delta facies seismic attributes through forward modeling on the journal of Advances in Geoscience. This paper studied the thickness of the river sand body with a forward model for the grape flower reservoir in Gaotaizi area. Gaotaizi Oilfield was a tertiary structure in the south of the Daqing Changyuan secondary structural belt, characterized as heterogeneous with continental sedimentary river-delta deposits. Straight shunts were mainly sand bodies. This type of sand body had a small development scale, a low drilling encounter rate, a strong heterogeneity on the plane, and a low degree of well pattern control.
The relationship with seismic attributes and sensitive seismic attributes was preferred. Seismic attributes were a measure of the geometric, kinematic, dynamic, and statistical characteristics of seismic data. This definition was basically a purely mathematical definition. Through the characteristic analysis of the attribute change map and the sandstone thickness map, it could be obtained that the sequence-type attributes had a good recognition ability for river-phase sand bodies.
[Source: http://ojs.usp-pl.com/index.php/ag/article/view/1591 ]