Method and device for seismic hydrocarbon detection based on multiple porous media model

Abstract

The invention relates to the technical field of physical geography, in particular to an earthquake hydrocarbon detection method and a detection device based on a multiple pore medium model. The earthquake hydrocarbon detection method includes the following steps: a data set related to underground reservoir rock is acquired and reservoir information is obtained from the data set, and the reservoir information comprises information of the reservoir environment, rock physical properties, and the micro-pore structure; model parameters needed by the multiple pore medium model are acquired according to the reservoir information, and a rock physics model of fluid saturated rock is set; frame remaining processing is carried out on earthquake-related data to extract an angle gather, and prestack synchronous inversion is carried out on the angle gather to obtain prestack elastic parameters; the prestack elastic parameters are projected to the rock physics model to form a plurality of projection data points, and porosity and / or saturation of a detected medium are / or calculated; and oil and gas distribution of the underground reservoir is judged according to the porosity and / or the saturation of the detected medium to carry out hydrocarbon detection, the oil and gas distribution of an unconventional reservoir can be directly forecasted, and multiplicity of the hydrocarbon detection is effectively lowered.

Description

technical field [0001] The invention relates to the technical field of geophysics, in particular to a seismic hydrocarbon detection method and device based on multiple porous media models. Background technique [0002] In the past few decades, seismic exploration technology has undergone earth-shaking changes. At the same time, seismic interpretation has also experienced multiple development stages such as structural interpretation, stratigraphic lithology interpretation, development seismic interpretation, and petrophysical analysis, and is moving towards quantitative seismic interpretation. direction development. However, the goal of seismic exploration is always oil and gas, and this constant pursuit continues to promote the advancement of hydrocarbon detection theory and technology. [0003] Hydrocarbon detection technology refers to the method of finding oil and gas reservoirs by using seismic reflection or refraction features. In seismic reflection wave exploration, ...

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Problems solved by technology

[0009] Embodiments of the present invention provide a seismic hydrocarbon detection method and device based on multiple porous media models, which are used to solve the development and research of unconventional oil and gas reservoirs in the prior art

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