Landform restoration method and device

Abstract

The embodiment of the invention provides a landform restoration method and device. According to the landform restoration method, seismic horizon interpretation data is utilized, an overlying stratum and an underlying stratum are selected, the distance between the overlying stratum and an ancient buried hill plane and the distance between the underlying stratum and the ancient buried hill plane are calculated, a residual error and a mirror image plane of an underlying thickness trend surface, superposing the mirror image plane trend surface and the residual error, and the structural trend and the micro-topography of the ancient hidden hill plane can be determined, thereby completing landform restoration. The method and the device provided by the embodiment of the invention are suitable for carrying out landform restoration on geological horizons of areas in which upper and lower marker horizons of the ancient hidden hill plane are not obvious, a seismic reflection structure is not obvious, the overlying stratum of the ancient hidden hill stratum belongs to carbonate rock construction, the maximum flooding surface cannot be determined and the like, and accurate landform capable of reflecting the construction trend and the micro-topography can be acquired.

Description

technical field [0001] The invention relates to the technical field of landform restoration, in particular to a landform restoration method and device. Background technique [0002] The reservoir medium space of carbonate reservoirs is a karst fracture-cave system, and the necessary conditions for the formation of a karst fracture-cavity system are: soluble rock, flowing water and structural fractures. Soluble rocks and structural fractures are the basis of karstification, and flowing water is the dynamic condition of karstification. It can be seen that the formation of karst fracture-cave systems is closely related to hydrodynamic conditions. Restoring the paleokarst landform can restore the hydrodynamic conditions of the paleokarst watershed, so the paleokarst landform has a controlling effect on the formation of the karst fracture-cavity system. Therefore, the restoration and characterization of paleokarst landforms play a substantial role in guiding the efficient develo...

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Problems solved by technology

[0005] The embodiment of the present invention provides a landform restoration method and device, which are used to solve the problem that the upper and lower marker layers on the surface of the ancient buried hill are not obvious, the seismic reflection structure is not obvious, and the overlying layer on the surface of the ancient buried hill is constructed of carbonate rock, and it is impossible to determine the maximum The problem that accurate landform restoration cannot be performed under conditions such as sea flooding

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