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Physical model for simulating reservoir and seismic response analysis method thereof

A physical model, a technology for simulating reservoirs, applied in the field of geophysical exploration, which can solve problems such as being unable to meet the needs of oil and gas reservoir exploration and development, and difficult to describe complex physical phenomena.

Inactive Publication Date: 2019-01-04
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Petroleum-bearing formations actually have a two-phase medium of solid state and fluid state. From the perspective of extracting formation lithology information, the rock elasticity theory and wave propagation theory based on uniform isotropic pure solids are difficult to describe many complex Physical phenomena, based on single-phase medium seismic wave theory can no longer meet the needs of guiding the exploration and development of oil and gas reservoirs

Method used

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  • Physical model for simulating reservoir and seismic response analysis method thereof
  • Physical model for simulating reservoir and seismic response analysis method thereof
  • Physical model for simulating reservoir and seismic response analysis method thereof

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Experimental program
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Embodiment 1

[0033] The invention provides a physical model for simulating reservoirs, the model comprising:

[0034] A substrate, the upper surface of the substrate is provided with a plurality of dielectric block groove groups at equal intervals, and each dielectric block groove group includes a plurality of dielectric block grooves distributed symmetrically with respect to the horizontal direction;

[0035] When there is no filling substance in the groove of the medium block, a physical model of the substrate is formed;

[0036] When the reservoir skeleton medium is filled in the medium block groove, a physical model of the reservoir skeleton medium is formed;

[0037] When the physical model of the reservoir framework medium is filled with fluid, a two-phase medium physical model is formed, wherein the fluid is integrated with the reservoir framework medium.

[0038] As a preferred solution, the medium block groove is made by engraving technology.

[0039] In one example, the upper s...

application example 1

[0051] Figure 1a , Figure 1b and Figure 1c Schematic diagrams respectively showing the basic physical model of the simulated reservoir seismic physical model, the physical model of the reservoir skeleton medium and the physical model of the dual-phase medium according to an application example of the present invention.

[0052] figure 2 A schematic side view of a simulated reservoir seismic physics model according to an application example of the present invention is shown.

[0053] like Figure 1a-Figure 2 As shown, the present invention provides a physical model for simulating reservoirs. The model includes: a rectangular substrate with a length of 60 cm and a plate thickness of 5 cm. The material of the substrate is plexiglass, and three media Block groove group, the distance between the dielectric block groove group is 7.7cm, the first dielectric block groove group is 9.7cm away from the wide side of the substrate, and the third dielectric block groove group is 9.7c...

Embodiment 2

[0059] image 3 A flowchart showing the steps of the seismic response analysis method for simulating a physical model of a reservoir according to the present invention.

[0060] like image 3 As shown, the present invention provides a kind of seismic response analysis method utilizing the physical model of simulated reservoir of the present invention, and this analysis method comprises:

[0061] Step 101, designing a three-dimensional observation system, the three-dimensional observation system includes a physical model placed in water, the lower surface of the physical model faces the water surface, and a transmitter and a receiver are arranged above the water surface; Step 102, based on the three-dimensional The observation system collects model data of the physical model; and step 103 , performs post-stack data processing based on the collected model data to obtain seismic wave field attenuation characteristics of the physical model.

[0062] The seismic response analysis...

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Abstract

The invention discloses a physical model for simulating a reservoir and a seismic response analysis method thereof. The model comprises a substrate; multiple medium block groove groups are equidistantly arranged on the upper surface of the substrate, and each medium block groove group comprises multiple medium block grooves distributed symmetrically relative to the horizontal direction; when the medium block groove is not internally provided with a filling material, a substrate physical model is formed; when the medium block groove is filled with a reservoir skeleton medium, a reservoir skeleton medium physical model is formed; and when the reservoir skeleton medium physical model is filled with fluid, a two-phase medium physical model is formed, and the fluid and the reservoir skeleton medium are integrated. Through the scheme provided in the invention, seismic physical model experiment study on a complex two-phase medium fluid filling comprehensive model can be developed, a favorablebasis can be provided for oil and gas exploration and development, and a foundation is laid for future production of a physical model.

Description

technical field [0001] The invention relates to the field of geophysical exploration, more specifically, to a physical model for simulating reservoirs and an analysis method for seismic response thereof. Background technique [0002] Seismic exploration is an important means of oil and gas exploration, and seismic wave propagation theory is the theoretical basis of seismic exploration, and seismic physical simulation technology is an important way to study seismic wave propagation theory, and it is also a powerful tool to verify and solve practical production problems. As early as the 1920s, British geophysicist E.C. Bullard proposed to simulate seismic waves through ultrasonic waves, so as to study seismology on a small-scale model. With the deepening of oil exploration, exploration is becoming more and more difficult. Many geological phenomena and wave field propagation theories need to be further verified and improved. Exploration methods also need to be further developed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/30
Inventor 周中彪
Owner CHINA PETROLEUM & CHEM CORP