A three-dimensional geological body space interpolation method and system

Abstract

The invention discloses a three-dimensional geological body spatial interpolation method and system. The three-dimensional geological body spatial interpolation method comprises the steps of data pre-processing, layer networking, layer correction, attribute interpolation, attribute correction, layer control body interpolation and the like. Through spatial matched interpolation of seismic amplitudeand wellbore logging data based on explanation layer control, spatial interpolation calculation of multi-well engineering geological attribute is achieved, space distribution of the geological engineering attribute based on a seismic body is established, spatialization and substantialization of the geological attribute are achieved, and attribute value extraction of an arbitrarily-designed well curve is formed. According to the three-dimensional geological body spatial interpolation method, on the basis of three-dimensional visualization, various information is comprehensively displayed on the 3D space truly and dynamically, and the three-dimensional geological body spatial interpolation method has the characteristics that interpolation constraint information can be clipped, and the interpolated method can be selected; and compared with a current conventional interpolation method, the constraint control conditions are increased under the premise of not increasing operation complexity,the interpolation accuracy is improved, complex interaction in three-dimensional geological body spatial interpolation is simplified, the operation process is optimized, and the working efficiency isimproved.

Description

technical field [0001] The invention relates to the field of petroleum engineering professional software, in particular to a three-dimensional geological body space interpolation method and system for petroleum engineering construction. Background technique [0002] As the construction object and construction background of petroleum engineering, a large number of petroleum scientific and technological workers in my country have carried out research on reservoir geological models, and major oil fields have successively carried out special research on reservoir and reservoir description, and gradually formed a model that is more suitable for my country's continental land. Reservoir geological model research methods and techniques for facies reservoirs. However, due to the limited geological information that can be obtained in petroleum engineering construction, the following problems exist in the interpolation calculation method of reservoir geological attributes: [0003] (1)...

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Problems solved by technology

[0003] (1) The interpolation constraints are complicated, the operation is cumbersome, and the interpolation algorithm is single. In the two-dimensional environment, it is impossible to realize the multidisciplinary integration, three-dimensional quantitative and visual prediction of interwell reservoirs

[0004] (2) The single interpolation of existing technology cannot combine reservoir seismology with reservoir sedimentology

[0005] (3) Under the guidance of the sedimentary model, it is impossible to comprehensively apply the logging and seismic data to carry out modeling interpolation under the constraints of horizons and sedimentary models, etc.

[0006] (4) The current conventional method uses logging curve attribute volume interpolation, which cannot meet the longitudinal and lateral accuracy requirements of the attribute volume

[0007] (5) Although the wave impedance inversion volume interpolation method can meet the requirements in terms of accuracy, the high complexity of data acquisition and establishment of inversion volume operations will greatly reduce work efficiency

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