Real-Size Reconstruction of Porous Media Using the Example of Fused Filament Fabrication 3D-Printed Rock Analogues

被引:1
|
作者
Oskolkov, Alexander A. [1 ]
Kochnev, Alexander A. [2 ]
Krivoshchekov, Sergey N. [2 ]
Savitsky, Yan V. [2 ]
机构
[1] Perm Natl Res Polytech Univ, Dept Welding Prod Metrol & Technol Mat, 29 Komsomolsky Prospect, Perm 614990, Russia
[2] Perm Natl Res Polytech Univ, Dept Petr Geol, 29 Komsomolsky Prospect, Perm 614990, Russia
来源
基金
俄罗斯科学基金会;
关键词
3D printing; FFF; additive manufacturing; reservoir rocks; lithological and petrophysical properties; reservoir properties; synthetic core; computed tomography; porous media; process parameter control; PRINTED SANDSTONE ANALOGS; 3D; MODELS; PERMEABILITY; POROSITY; REPLICATION; TECHNOLOGY; BEHAVIOR;
D O I
10.3390/jmmp8030104
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The multi-scale study of rock properties is a necessary step in the planning of oil and gas reservoir developments. The amount of core samples available for research is usually limited, and some of the samples can be distracted. The investigation of core reconstruction possibilities is an important task. An approach to the real-size reconstruction of porous media with a given (target) porosity and permeability by controlling the parameters of FFF 3D printing using CT images of the original core is proposed. Real-size synthetic core specimens based on CT images were manufactured using FFF 3D printing. The possibility of reconstructing the reservoir properties of a sandstone core sample was proven. The results of gas porometry measurements showed that the porosity of specimens No.32 and No.46 was 13.5% and 12.8%, and the permeability was 442.3 mD and 337.8 mD, respectively. The porosity of the original core was 14% and permeability was 271 mD. It was found that changing the layer height and nozzle diameter, as well as the retract and restart distances, has a direct effect on the porosity and permeability of synthetic specimens. This study shows that porosity and permeability of synthetic specimens depend on the flow of the material and the percentage of overlap between the infill and the outer wall.
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页数:22
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