Method for establishing time domain sequence stratigraphic profile by using sedimentary forward modeling

Abstract

The invention belongs to the technical field of stratum information acquisition, and discloses a method for establishing a time domain sequence stratum profile by using sedimentary forward modeling, which comprises the following steps: performing three-dimensional sedimentary forward modeling numerical simulation on a stratum of a research area to obtain a sedimentary simulation result; establishing a deposition forward model and correcting; selecting a two-dimensional profile position and a grid point; establishing a two-dimensional time domain stratum profile, comparing the two-dimensional time domain stratum profile with the depth domain stratum profile at the corresponding position, and analyzing sequence stratum characteristics. Calculation is carried out through a diffusion equationreflecting water flow driving and slope terrain driving, and establishment of a time domain sequence stratigraphic profile can be achieved; the method for establishing the time domain sequence stratigraphic profile is simple and easy to implement, is realized by means of existing software, is low in cost and high in operability, and provides a new technical means for extracting time information inthe strata and determining the sequence boundary and the geological age of the internal strata.

Description

technical field [0001] The invention belongs to the technical field of stratum information acquisition, and in particular relates to a method for establishing a time-domain sequence stratigraphy profile by using sedimentary forward modeling simulation. Background technique [0002] At present, the forward modeling of sedimentary sequence is based on the assumption that the process parameters and the formation response are interdependent. By setting a series of geological parameters of different processes, and obtaining the formation response generated by the interaction of different parameters, it is realized. Simulation and prediction of formation, lithology and reservoir. The existing sedimentary sequence forward modeling software is GPM (Geological Process Modeler) geological process simulation software, which is a simulator for stratigraphic and sedimentary process forward modeling on the Petrel exploration and development integration platform. GPM provides a method for...

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Problems solved by technology

However, the GPM geological process simulation software cannot realize the acquisition of sequence stratigraphic sections in the time domain, and has limitations, which cannot meet the needs of stratigraphic information acquisition.

[0003] Through the above analysis, the existing problems and defects of the existing technology are: the sedimentary sequence forward modeling software GPM cannot realize the acquisition of sequence stratigraphic sections in the time domain, and has limitations, which cannot meet the needs of stratigraphic information acquisition

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