Artificial conglomerate core as well as preparation method and application thereof

A core and artificial technology, applied in the field of physical simulation of oil and gas field development, can solve problems such as the source of conglomerate cores, and achieve the effects of diverse components, simple structure and stable performance

Active Publication Date: 2014-07-09
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the problem of the preparation of artificial conglomerate cores, the object of the present invention is to provide an artificial conglomerate core and its preparation method, which solves the problem of the source of conglomerate cores in physical simulation, and the properties of the artificial conglomerate cores are stable and the pores The throat structure is closer to the natural core, which can be used to carry out physical simulation experiments of conglomerate reservoirs in the laboratory

Method used

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  • Artificial conglomerate core as well as preparation method and application thereof
  • Artificial conglomerate core as well as preparation method and application thereof
  • Artificial conglomerate core as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0049] An artificial conglomerate core is mainly prepared from the following raw materials according to the percentage by weight of its components:

[0050]

[0051] The cement is composed of three kinds of additives and epoxy resin, and the number of parts by weight is: 0.1 part of dibutyl phthalate, 0.01 part of ethylenediamine, 0.1 part of acetone, 0.3 part of epoxy resin and silicate mixture 0.5 servings.

[0052] The mesh number of the river sand is 2-4mm, 2-4 mesh, 4-8 mesh, 8-10 mesh, 20-40 mesh, 40-60 mesh, 60-100 mesh, 100-200 mesh, 200 mesh or more Wait.

[0053] The particle size of the quartz sand is 10-20 mesh, 20-40 mesh, 40-60 mesh, 60-100 mesh, 100-200 mesh or more than 200 mesh.

[0054] The preparation method of artificial conglomerate rock core as mentioned above, comprises the steps:

[0055] (1) Mix the ingredients in the formula evenly and sieve them;

[0056] (2) Inject the mixture obtained in step (1) into the mold to distribute the sand evenly, ...

specific Embodiment 2

[0060] An artificial conglomerate core is mainly prepared from the following raw materials according to the percentage by weight of its components:

[0061]

[0062] The cement is composed of three kinds of additives and epoxy resin, and the number of parts by weight is: 0.5 parts of dibutyl phthalate, 0.1 part of ethylenediamine, 1.2 parts of acetone, 1.5 parts of epoxy resin and silicate mixture 5 servings.

[0063] The mesh number of the river sand is 8-10 mesh, 20-40 mesh, 40-60 mesh, 60-100 mesh, 100-200 mesh, 200 mesh or more.

[0064] The particle size of the quartz sand is 10-20 mesh, 20-40 mesh, 40-60 mesh, 60-100 mesh, 100-200 mesh or more than 200 mesh.

[0065] The preparation method of the above-mentioned artificial conglomerate rock core, described method comprises the steps:

[0066] (1) Mix the ingredients in the formula evenly and sieve them;

[0067] (2) Inject the mixture obtained in step (1) into the mold to distribute the sand evenly, then place the ...

specific Embodiment 3

[0071] An artificial conglomerate core is mainly prepared from the following raw materials according to the percentage by weight of its components:

[0072]

[0073] The cement is composed of three kinds of additives and epoxy resin, which are composed of 0.3 parts of dibutyl phthalate, 0.05 parts of ethylenediamine, 0.8 parts of acetone, 0.7 parts of epoxy resin and silicate mixture by weight. 2.6 servings.

[0074]The mesh number of the river sand is 2-4mm, 2-4 mesh, 8-10 mesh, 20-40 mesh, 40-60 mesh, 60-100 mesh, 100-200 mesh, 200 mesh or more.

[0075] The particle size of the quartz sand is 10-20 mesh, 20-40 mesh, 40-60 mesh, 60-100 mesh, 100-200 mesh or more than 200 mesh.

[0076] The preparation method of the above-mentioned artificial conglomerate rock core, described method comprises the steps:

[0077] (1) Mix the ingredients in the formula evenly and sieve them;

[0078] (2) Inject the mixture obtained in step (1) into the mold to distribute the sand evenly, ...

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Abstract

The invention discloses an artificial conglomerate core which is used an indoor physical simulation experiment, and belongs to the technical field of oil-gas field development physical simulation. The artificial conglomerate core is mainly prepared from the following raw materials in percentage by weight: 2-15% of clay, 5-25% of cementing matter, 20-50% of river sand and 30-60% of quartz sand. The artificial conglomerate core has the advantages that the source problem of the conglomerate core in physical simulation is solved, the obtained artificial conglomerate core is stable in structure, complicated in pore throat structure and diverse in core components, has the characteristics of simple structure and stable property and can replace natural core to be used in physical simulation, and the shortcomings that the pore throat disposition, wetting property and the like of the synthetic core have great difference from those of the natural core are effectively overcome.

Description

technical field [0001] The invention relates to an artificial conglomerate core, a preparation method and application thereof. The artificial conglomerate core is used in indoor physical simulation experiments and belongs to the technical field of physical simulation for oil and gas field development. Background technique [0002] At present, the experimental model used in physical simulation is mainly the core model. Due to the disadvantages of complex process, difficulty and high cost in natural coring, artificial cores are generally used instead of natural cores for physical simulation experiments. [0003] However, at present, indoor physical simulation experiments of clastic rock reservoirs in China are mostly limited to sandstone reservoirs. Due to a series of limitations such as technical conditions, artificial conglomerate core preparation technology is not mature enough, resulting in indoor conglomerate reservoir physical simulation and natural formation conditions. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/24C04B14/10C04B14/06
Inventor 李宜强李彦阅王付勇王彦升
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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