Deposition Simulation Method Based on Base Plane Control of Deposition Process

Abstract

The invention discloses a method for simulating deposition on the basis of deposition process control of reference planes. The method includes analyzing deposition environments of deposition zones by the aid of well logging, mud logging and rock core information and determining change conditions of the reference planes and ancient landform conditions by the aid of burial history information; inputting ancient landforms into hydrodynamic models as initial landforms according to ancient landform analysis, simulating and reconstructing hydrodynamic characteristics of research zones, simulating and reconstructing transportation and deposition of sediment on the basis of hydrodynamic research according to sediment transport and diffusion equations, constraining deposition and denudation of deposits by the aid of the reference planes on the basis of transportation and deposition of the sediment, superposing deposition and denudation of the deposits on the initial landforms to be used as landforms for next simulation so as to carry out cyclic processes for simulating and reconstructing deposition. The method has the advantages that conditions of conditions of the reference planes are considered in simulation processes, and accordingly deposition at basin level can be simulated; the method is short in simulation time, and correction can be repeatedly carried out until requirements of geological characteristics are met.

Description

technical field [0001] The invention relates to a deposition simulation technology, in particular to a deposition simulation method based on a datum plane for controlling the deposition process. Background technique [0002] With the advancement of computer technology, the sedimentation simulation of large areas has been realized. At present, the sedimentation algorithm is mainly simulated by hydrodynamics and sediment hydrodynamics, using continuity equations, momentum equations, and energy equations. For the simulation research of physical sedimentation process, the relatively mature ones are the hydrodynamic N-S equation and the deposition simulation method based on inversion. The hydrodynamic method reproduces the real situation of hydrodynamics very well, but the study of sediment It only studies the modern sediments, does not take into account the fact that the channel base is metamorphic rock and igneous rock, and does not consider the influence of topography on sedim...

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Problems solved by technology

[0002] With the advancement of computer technology, the sedimentation simulation of large areas has been realized. At present, the sedimentation algorithm is mainly simulated by hydrodynamics and sediment hydrodynamics, using continuity equations, momentum equations, and energy equations. For the simulation research of physical sedimentation process, the relatively mature ones are the hydrodynamic N-S equation and the deposition simulation method based on inversion. The hydrodynamic method reproduces the real situation of hydrodynamics very well, but the study of sediment It only studies the modern sediments, does not take into account the fact that the channel base is metamorphic rock and igneous rock, and does not consider the influence of topography on sedimentation. It is not suitable for geological sedimentation simulation; while the inversion-based sedimentation simulation is more about the processing of existing data to make it the same as the researcher's idea, but cannot reflect the real depositional environment when the sediment was deposited, and the water Power situation

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