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Hole-type reservoir seismic physical model material, hole-type reservoir seismic physical model and manufacturing method

A technology of porous reservoir and seismic physics, applied in the field of seismic physical model of oil and gas exploration geophysics, can solve problems such as seismic response gap

Active Publication Date: 2022-05-03
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The different proportions of the collapsed objects occupying the hole space will inevitably cause the difference in seismic response

Method used

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  • Hole-type reservoir seismic physical model material, hole-type reservoir seismic physical model and manufacturing method

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Effect test

Embodiment 1

[0059] This embodiment provides a seismic physical model material for a cave-type reservoir. In parts by weight, the physical model material includes 20 parts of kaolin, 60 parts of water, 1000 parts of quartz sand, 70 parts of epoxy resin, and 10 parts of curing agent.

Embodiment 2

[0061] This embodiment provides a method for preparing a seismic physical model of a cavernous reservoir by using the seismic physical model material of the cavernous reservoir described in Embodiment 1, such as figure 1 As shown, the method includes the following steps:

[0062] S1: Mix kaolin and water evenly and put it into a square silicone mold and freeze it at -24°C for 2 hours to make an ice-like solid;

[0063] S2: The ice-like solid is made into a spherical hole model with a diameter of 5mm at -1°C and frozen at -24°C for use;

[0064] S3: Perform preheating treatment on the epoxy resin and the curing agent respectively, wherein the temperature for the preheating treatment on the epoxy resin is 50° C., the time for the preheating treatment is 2 hours, and the curing agent The temperature for the preheating treatment is 30°C, and the time for the preheating treatment is 1 hour; after the preheated epoxy resin and the curing agent are evenly mixed, they are then evenly...

Embodiment 3-6

[0068] Embodiments 3-6 respectively provide a method for preparing a seismic physical model of a cave-type reservoir, the steps of the method are the same as the steps of the method of embodiment 2, the only difference is that the amount of water, epoxy resin, and curing agent is different, The specific amounts of each substance in Examples 3-6 are shown in Table 1, wherein the epoxy resin, curing agent and quartz sand are all expressed in parts by weight.

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Abstract

The invention belongs to the technical field of seismic physical models of oil-gas exploration geophysics, and discloses a hole type reservoir seismic physical model material, a hole type reservoir seismic physical model and a manufacturing method. The physical model material comprises the following components in parts by weight: 15-25 parts of kaolin, 20-100 parts of water, 1000 parts of quartz sand, 60-100 parts of epoxy resin and 5-20 parts of a curing agent. Kaolin is used for simulating a collapse object, the kaolin and water are mixed in proportion and then quick-frozen into an ice-like solid, the ice-like solid is processed into hole models of different forms and sizes under the low-temperature condition, the hole models are embedded into a high-speed surrounding rock material to simulate a hole reservoir, and a hole space can be formed after the hole-type reservoir seismic physical model is solidified. According to the method, the seismic physical model with higher similarity can be obtained, so that more accurate experimental data can be obtained to be used for carrying out hole reservoir oil-gas exploration method research.

Description

technical field [0001] The invention belongs to the technical field of seismic physical models for oil and gas exploration geophysics, and in particular relates to a seismic physical model material for a cavernous reservoir, a seismic physical model for a cavernous reservoir and a manufacturing method thereof. Background technique [0002] Carbonate reservoir is a common reservoir type in my country, and it is also a hot spot in seismic exploration. Carbonate reservoirs have experienced karstification, and their reservoir morphology is mostly in the form of pores and caves. The scale of the dissolution pores is as small as a few millimeters and as large as hundreds of meters. Studying the propagation characteristics of seismic waves in vugs of different scales is helpful to clarify the response characteristics of vug-type carbonate reservoirs. For the seismic simulation of vug reservoirs, there are mainly two methods: numerical simulation and physical simulation. The nume...

Claims

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Application Information

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IPC IPC(8): C04B26/14G09B23/40G01V99/00C04B111/40
CPCC04B26/14G09B23/40C04B2111/00991C04B2111/40G01V20/00C04B14/106C04B14/06C04B38/045C04B2103/0068
Inventor 司文朋邢廷栋薛诗桂王欢李呈呈
Owner CHINA PETROLEUM & CHEM CORP
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