Conglomerate pore structure characterization method based on CT three-dimensional data volume

Abstract

The invention discloses a conglomerate pore structure characterization method based on a CT three-dimensional data volume. The method overcomes the defects of conventional pore structure research, can realize the three-dimensional visualization of a rock microstructure under the condition that a conglomerate sample is not damaged, can truly restore the internal structure of the conglomerate, can better extract the pore structures of micro-cracks and weak structures in the strong-heterogeneity conglomerate, can obtain the more accurate pore structure of the conglomerate, and can reflect the pore structures in the conglomerate more truly.

Description

technical field

[0001] The invention relates to the field of oil and natural gas exploration and development, in particular to a method for characterizing the pore structure of conglomerate based on CT three-dimensional data volume. Background technique

[0002] Conglomerate has mixed particle sizes, well-developed fractures, and strong heterogeneity, which lead to complex pore structure and difficult characterization of conglomerate reservoirs. Pore ​​structure is the decisive factor to characterize the porosity and permeability of conglomerate reservoirs. Scientifically characterizing the complex pore structure of conglomerate reservoirs is beneficial to reservoir identification, evaluation and classification, and is of great significance to the efficient exploration and development of oil and gas resources. At present, there are many methods for evaluating the microstructure of conglomerate. For example, when measuring the pores of strongly heterogeneous conglomerate by m...

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