沉积盆地地层剥蚀厚度恢复方法及进展  

Methods of Eroded Strata Thickness Restoration in Sedimentary Basins and Its Advancement

作　　者：曹强[1] 叶加仁[1] 王巍[2] 

机构地区：[1]中国地质大学资源学院,湖北省武汉市430074 [2]中国石化胜利油田物探公司,山东省东营市257000

出　　处：《中国石油勘探》2007年第6期41-46,共6页China Petroleum Exploration

基　　金：国家自然科学基金项目(40172051)。

摘　　要：地层剥蚀厚度的准确恢复对正确重建沉积盆地原始沉积—构造演化史、热史及油气生、排、运、聚史和定量评价油气资源潜力至关重要。在科学界定剥蚀厚度的含义和分析影响地层剥蚀厚度因素的基础上,提出了沉积盆地中恢复地层剥蚀厚度方法新的分类方案,将现有恢复方法划归为地质分析对比法、地热指标法、测井技术法、沉积速率法及其他方法等五大类,并选择4种常用方法对比分析了其基本原理、优缺点和适用条件。认为在实际工作中,应在充分了解各种方法的特点和正确认识区域地质背景的前提下,选用合适的恢复方法,并辅之以其他方法手段,综合、定量地恢复地层剥蚀量。Restoring the exact thickness of eroded strata is critical to reconstruct the histories of initial sedimentary-structural evolution, thermal evolutions, hydrocarbon generation, expulsion, migration and accumulation, and also to quantitatively evaluate the potential of oil and gas resources. On the basis of the scientific definition of eroded thickness and the analysis of factors that affect eroded strata thickness, a new category scheme on eroded strata thickness restoration in sedimentary basins is proposed, which classifies all currently used methods into five types as geological comparison, geothermal parameters, well logging technology, sedimentary rate and the others. Four common methods are also discussed to analyze the basic principle, advantages and disadvantages, and applicability of the new method. It is considered that the eroded strata thickness should be restored quantitatively and synthetically by using propermethod combined with other approaches based on the understanding of regional geological backgrounds and characteristic of other methods.

关 键 词：地层抬升剥蚀 剥蚀厚度 恢复方法 沉积盆地 

分 类 号：P618.13[天文地球—矿床学] P544.4[天文地球—地质学]