物探与化探
物探與化探
물탐여화탐
GEOPHYSICAL AND GEOCHEMICAL EXPLORATION
2014年
5期
1070-1075
,共6页
油气化探%地表干扰%Mallat小波分析%异常识别%消除干扰
油氣化探%地錶榦擾%Mallat小波分析%異常識彆%消除榦擾
유기화탐%지표간우%Mallat소파분석%이상식별%소제간우
hydrocarbons geochemical exploration%surface interference%Mallat wavelet%seepage anomalies%elimination of interference
东营凹陷南斜坡金东-柳桥地区地表条件复杂,化探信号干扰强烈,造成假异常大面积出现。在对金东-柳桥地区油气化探数据中干扰类型识别的基础上,用Mallat小波分析法,发现分析尺度为3时的连续序列呈现出地表干扰信息,由此进行了地表干扰排除。经过封盖条件校正与异常识别,获得了该区油气化探异常。干扰排除后的异常与断层、圈闭及已发现的油气藏或油气显示相吻合,表明这些异常主要反映的是地下油气藏信息。
東營凹陷南斜坡金東-柳橋地區地錶條件複雜,化探信號榦擾彊烈,造成假異常大麵積齣現。在對金東-柳橋地區油氣化探數據中榦擾類型識彆的基礎上,用Mallat小波分析法,髮現分析呎度為3時的連續序列呈現齣地錶榦擾信息,由此進行瞭地錶榦擾排除。經過封蓋條件校正與異常識彆,穫得瞭該區油氣化探異常。榦擾排除後的異常與斷層、圈閉及已髮現的油氣藏或油氣顯示相吻閤,錶明這些異常主要反映的是地下油氣藏信息。
동영요함남사파금동-류교지구지표조건복잡,화탐신호간우강렬,조성가이상대면적출현。재대금동-류교지구유기화탐수거중간우류형식별적기출상,용Mallat소파분석법,발현분석척도위3시적련속서렬정현출지표간우신식,유차진행료지표간우배제。경과봉개조건교정여이상식별,획득료해구유기화탐이상。간우배제후적이상여단층、권폐급이발현적유기장혹유기현시상문합,표명저사이상주요반영적시지하유기장신식。
In Jindong-Liuqiao area on the southern slope of Dongying Depression, large-area false anomalies emerge from geochemical signals because of strong interference caused by complicated surface conditions. The types of the surface interference were recognized firstly in this area. On such a basis, the geochemical signal was analyzed with Mallat wavelet and the scale 3 continuous sequence re-flecting the surface interference was detected and eliminated. The micro-seepage and seepage anomalies for geochemical hydrocarbon exploration of this area were obtained on the basis of the correction of sealing conditions. The anomalies are consistent with faults, traps and hydrocarbon reservoirs already found or the hydrocarbon shows after the interference elimination, which suggests that these anoma-lies mainly reflect the underground hydrocarbon reservoir information.