异常压力类型及成因机制  

Types and Mechanism of Abnormal Pressure

作　　者：曹文渊 Cao Wenyuan(Northwest University,Xi'an 710069,China)

机构地区：[1]西北大学地质学系,陕西西安710069

出　　处：《山东化工》2018年第23期122-123,共2页Shandong Chemical Industry

摘　　要：超压成因机制来源于有效应力增加与流体体积增大两种机制。文章分别对此两种成因机制下的7种异常压力类型进行介绍,包括:沉积型超压、构造挤压、生烃增压、黏土矿物转化、压力传递,水压头增压与浮力增压,并分别论述了各种成因异常压力的形成机理。The overpressure mechanism comes from two mechanisms:the increase of effective stress and the increase of fluid volume.This paper introduces seven types of abnormal pressure under the two genetic mechanisms,including sedimentary overpressure,tectonic extrusion,hydrocarbon generation supercharging,clay mineral transformation,pressure transfer,hydraulic head supercharging and buoyancy supercharging.

关 键 词：欠压实 构造挤压 生烃作用 传递压力 

分 类 号：P618.13[天文地球—矿床学]