MODEL-CALCULATIONS OF LOSS OF POROSITY IN SANDSTONES AS A RESULT OF COMPACTION AND QUARTZ CEMENTATION

被引：38

作者：

ROBINSON, A

GLUYAS, J

机构：

来源：

MARINE AND PETROLEUM GEOLOGY | 1992年 / 9卷 / 03期

关键词：

QUARTZ CEMENTATION; FLUID FLOW-RATES; MATHEMATICAL MODEL;

D O I：

10.1016/0264-8172(92)90080-X

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

A simple mathematical model has been developed for the precipitation of quartz cements along a dipping sandstone bed as a result of the cooling of a quartz-saturated formation water. The model assumes that the sand suffers a substantial loss of porosity through compaction before quartz cementation occurs, and that the cementation takes the form of an event of 10 Ma duration. The results suggest that flow-rates of metres to tens of metres per year need to be sustained over the 10 Ma period for a significant amount of quartz cement to precipitate. Such flow-rates are generally thought to be characteristic only of artesian flow.

引用

页码：319 / 323

页数：5

共 17 条

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