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Sequential collaborative simulation geological modeling method based on phase control

A geological modeling, sequential technique, applied in seismology for well logging, etc., can solve the problem of not considering sedimentary effects, etc.

Active Publication Date: 2018-01-19
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

However, the existing sequential Gaussian stochastic simulation method does not consider the influence of sedimentation relative to the simulation results

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  • Sequential collaborative simulation geological modeling method based on phase control
  • Sequential collaborative simulation geological modeling method based on phase control
  • Sequential collaborative simulation geological modeling method based on phase control

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[0042] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0043] Such as figure 1 As shown, it is a schematic flow chart of the geological modeling method based on phase control sequential collaborative simulation of the present invention. A method for geological modeling of sequential collaborative simulation based on phase control, characterized in that it comprises the following steps:

[0044] A. Obtain original well data, inverted or simulated data volumes and horizon data, build a facies model, set the number of random simulations, the number of interpolation layers, and find the number of points in the neighborhood of primary variables and seconda...

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Abstract

The invention discloses a sequential collaborative simulation geological modeling method based on phase control. The method includes the following steps: obtaining original data, constructing a phasemodel and setting parameters, performing interpolation on well data and horizon data, constructing a variation function of a master variable and a secondary variable, adopting the least square methodto calculate contribution proportions of sedimentary facies Kriging estimations to to-be-estimated points, generating a random path on each of simulation planes, and carrying out collaborative simulation on the basis of the random paths on the simulation planes. Different sedimentary facies belonging to points within a to-be-simulated neighborhood are found and weights are reasonably distributed to Kriging estimations, so that during a whole random simulation process, control over correlation (variation) can be carried out through a variation function, and also regional control can be carriedout through sedimentary facies which belong to discrete attributes. Therefore, constraints over the to-be-estimated points can be realized from the above two aspects, and a simulation result can reflect actual geological situations more accurately.

Description

technical field [0001] The invention belongs to the technical field of geological modeling, in particular to a sequential collaborative simulation geological modeling method based on phase control. Background technique [0002] Petroleum is an important industrial raw material in modern society, especially the most important raw material in chemical industry. my country's oil reserves are relatively scarce, and most of the main domestic oil fields have entered the late stage of exploitation, and their water content has increased significantly. The underground oil reservoirs present a pattern of "highly dispersed overall and relatively enriched locally", so the difficulty of mining is increasing day by day , and it is increasingly difficult to discover emerging oil fields. Therefore, in the process of oil extraction, the fine description of oil reservoirs becomes the most important thing, and it is also the premise of reasonable and effective development. [0003] With the c...

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Application Information

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IPC IPC(8): G01V1/40
Inventor 王峣钧林康李阳薛丽娜胡光岷
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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