塔北阿克库勒南部三叠系储层孔隙结构特征

Pore Structure Features of Triassic Reservoir in South Arkula, North Tarim Basin

根据９口井３６９个岩心压汞资料，研究了三叠系储层的主要流动喉道半径平均值（Ｒｚ）、喉道偏离系数（ａ）、喉道结构系数（Ｆ）等孔隙结构参数和喉道类型，得出了孔隙结构参数与储层物性相关分析式。做了有效应力下水平单向流动压汞试验，第一次取得了地层应力条件下的孔喉分布情况。

According to the 369 core mercury-injection data from 9 wells, this paper studies the throat types and pore structure parameters of the main flowing throats of Triassic reservoir, such as the average throat radius (Rz), throat deriation coefficient (α), throat pore structure coefficient (F) and derives an analytic expression of the interrelated pore structure parameters and the physical properties of the reservoir. This paper also introduces the throat distribution under stratum stress first obtained through the horizontal one-way flowing mercury-injection test under effective stress.