地史中的孔隙度场方程及回剥正演法  

Porosity equation and backstripping-forward method in historical geology

作　　者：冯恩民[1] 王秀梅[1] 杨朝 常云岫 吴铁生[1] 张凤莲[1] 周旭东[1] 黄莲芳 

机构地区：[1]辽河石油勘探局研究院

出　　处：《大连理工大学学报》1994年第3期256-262,共7页Journal of Dalian University of Technology

基　　金："八五"国家重点科技攻关项目

摘　　要：为查明石油与天然气的生成状况、地质储量及其分布，必须清楚地层的沉积埋藏史。为此，根据沉积埋藏机理，建立了具有多种岩性沉积、压实的泥岩孔隙度场方程与定解条件，并给出计算不同地质时期各岩层厚度与孔隙度的数学方法。在此基础上，构造了描述地史拟合的微分动态规划及回剥正演算法。对某洼陷作了实际计算，收到了良好效果。In order to run the producing mechanism,geologic storage and the distrbution of petroleum and natural gas to earth, we must understand the depositional covering history of earth layer.Therefore,according to the depeitional covering mechanism,this paper establishes the porosityequation of mudstone and its determinative conditions which have many sorts of lithology depositand compacting.It gives the mathematical method which can solve the thickness and porosity ofevery rock layer in various geologic stage. On the basis of above descriptions,the differentialdynamic programming which describes the fitting of the historical geology and backstripping-forward algorithm are constructed.

关 键 词：地史学 孔隙度 微分动态规划 

分 类 号：P536[天文地球—古生物学与地层学]