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Multifunctional heterogeneous core model equipment

A core model and heterogeneous technology, which is applied in the field of multi-functional heterogeneous core model equipment, can solve problems such as inability to simulate oil layer characteristics well, and achieve the effects of correcting model permeability, good simulation effect and widening function.

Pending Publication Date: 2017-05-31
SOUTHWEST PETROLEUM UNIV
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

Conventional cemented small cores of φ25, φ38, and three-layer heterogeneous cores of 45×45×300mm cannot simulate the characteristics of this oil layer well.

Method used

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  • Multifunctional heterogeneous core model equipment
  • Multifunctional heterogeneous core model equipment
  • Multifunctional heterogeneous core model equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0038] (1) Carry out the assembly of the model:

[0039] ①Put the cover plate on the O-ring, apply lubricating oil, and set aside;

[0040] ② Prepare the electrodes and embed them in the model for fixation;

[0041] ③ Install the inlet and outlet valves;

[0042] ④Sand filling operation: Generally, sand filling is divided into three times, and 400g of quartz sand of different meshes are filled each time (the first layer is 120-160 mesh, the second layer is 80-100 mesh, and the third layer is 60-80 mesh). There are three layers of heterogeneous cores, and each layer uses a scraping tool (such as Figure 7 As shown) after scraping, add the next layer of quartz sand for scraping. After the three layers are added, use a ruler to measure, and the forging operation can be performed 0.3cm above the grinding surface (multiple test results show that 0.3cm), and use the corresponding pressing mold 50MPa constant pressure for 5 minutes, and finally put into the mold combination moldin...

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Abstract

The invention provides multifunctional heterogeneous core model equipment. The equipment comprises a core model main body, a top cover and an auxiliary tamping module; the auxiliary tamping module is used for tamping the core model main body filled with quartz sand; the top cover is used for closing an opening of the core model main body when the tamping is finished; inlets, outlets and threaded channels are formed on four walls of the core model main body; the inlets and the outlets are formed on the wide side wall of the core mode main body; the threaded channel is formed on the long side wall of the core model main bodies. By use of the equipment provided by the invention, the prepared core is large in volume, and the simulation effect on the displacement experiment is good; a regulating button at one side can fast modify the model permeability so as to increase the experiment success rate; and a pressure measuring point or a testing electrode can be installed at other side according to the experiment requirement, thereby acquiring the water saturation change in the displacement process, and expanding the function of the experimental core. The whole equipment is detachable, and can be reused.

Description

technical field [0001] The invention relates to the technical field of petroleum engineering, in particular to a multifunctional heterogeneous rock core model equipment. Background technique [0002] Artificial core is the main method designed to replace natural core for experiments when natural core is not enough to meet the experimental requirements. With the diversification of laboratory physical experiment research and development, the core type is no longer limited to one-dimensional cylindrical small cores, but is developing towards larger and more representative cores. [0003] Pi Yanfu published a paper on the manufacture and production of the current conventional artificial cores in science technology and engineering, "Technology and Application of Quartz Sand Epoxy Resin Bonded Artificial Cores", introducing the artificial cores made of epoxy resin at this stage, Including a variety of "conventional flooding" artificial cores: φ25×100mm, φ25×500mm, φ25×1000mm, φ38...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08G01N27/00
CPCG01N15/088G01N27/00
Inventor 朱珊珊朱诗杰叶仲斌施雷庭舒政陈洪张玉龙
Owner SOUTHWEST PETROLEUM UNIV
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