Phase control type dolomite reservoir earthquake prediction method and device based on deposition parameters

Abstract

The invention provides a phase control type dolomite reservoir earthquake prediction method and device based on deposition parameters. The method comprises the steps: obtaining a lithofacies curve anda deposition energy curve according to research area logging data, rock core observation data and slice observation data; obtaining a deposition parameter curve according to the lithofacies curve andthe deposition energy curve; performing seismic interpretation on the target interval of the research area to obtain a seismic sequence framework of the target interval; carrying out well constraintseismic inversion in the seismic sequence framework by utilizing the deposition parameter curve to obtain phase control type dolomite reservoir distribution. According to the method, the deposition law in geological research is combined with a seismic reservoir prediction technical means, deposition parameters in the deposition law are quantified to serve as input conditions of seismic reservoir prediction to predict the distribution of the phase control type dolomite reservoir, the prediction precision is high, and the geological regularity is high.

Description

technical field [0001] The invention relates to the technical field of petroleum and natural gas exploration, in particular to a method and device for seismic prediction of facies-controlled dolomite reservoirs based on deposition parameters. Background technique [0002] Dolomite reservoir is one of the main targets of carbonate oil and gas exploration, and has become a very important exploration field. Facies-controlled dolomite reservoirs refer to dolomite reservoirs whose development is mainly controlled by sedimentary facies. The distribution of such reservoirs is often closely related to sedimentary facies, especially lithofacies and depositional energy in sedimentary facies research. The control of layer development is very obvious. [0003] At present, the prediction of the distribution of facies-controlled dolomite reservoirs mainly includes geological prediction and earthquake prediction. Geological prediction mainly relies on outcrop data, drilling and logging d...

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Problems solved by technology

[0004] In order to solve the above problems, in recent years, some methods combined with geology and seismic have emerged, such as phase-controlled seismic inversion, inversion based on geological models, etc., but these methods It mainly uses geological laws as the constraints of earthquake prediction to limit or correct the prediction results, and does not use geological parameters as input conditions to participate in earthquake prediction, and there are still problems of poor prediction accuracy and lack of geological regularity

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