The Characteristics of Tight Gas Reservoirs Microscopic Pore Structure - To Sulige Gas Field as an Example

Abstract:

The research is based on conventional microscope experiments, the characteristics of microscopic pore structure of tight sandstone reservoir were analyzed via the constant-rate mercury experiment. This paper selected samples of tight sandstone are from the Southeast area of Erdos basin Sulige gas field. The results showed that the dissolution pore and the intergranular pore were mainly reservoir pore structure types; the bundle throat and the lamellar throat were mainly types of throat in the study area. The mainly configure relations of the pore and throat in this area were big pore - fine / fine throat. Finally, according to constant-rate mercury results, analyzed the impact of pore and throats for percolation capacity respectively, came to the conclusions that the tight sandstone gas reservoirs percolation capability in study area is mainly affected by the throat, and the development degree of the throat determines the final physical characteristics of the reservoir.

• Periodical: Advanced Materials Research (Volumes 1092-1093)
• Pages: 1485-1489
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1092-1093.1485
• Online since: March 2015
• Authors: Jun Sheng*, Wei Sun, Ji Lei Qin, Shi Guo Liu, Ai Ju Li, Ting Zhao
• Keywords: Constant-Rate Mercury Injection, Microscopic Pore Structure, Percolation Capacity, Tight Gas Reservoir

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