calcarenite

Prediction of the favorable blocks and the calcarenaceous sandstone reservoir characteristics of Upper Triassic in middle section of the West Sichuan depression;

川西坳陷中段须四段钙屑砂岩储层特征及有利区块预测

The calcarenaceous sandstone reservoir in the 4th Member of Xujiahe Formation in Fenggu area are of the characteristics of low GR, high resistance and high impedance.

丰谷须四段钙屑砂岩储层具有低伽玛、高电阻、高波阻抗等特点,储层含气后波阻抗值有所降低,但仍高于或接近于泥岩。

On the basis of thin sections identification and data statistics,the lithology,diagenesis,petrophysical properties and pore development properties for calcarenaceous sandstone in Fenggu area are analyzed in detail.

钙屑砂岩在川西坳陷须家河组四段分布特别广,几乎每个构造、每口井都能见到。