本文選題：營城組 + 火山機(jī)構(gòu)�。� 參考：《地球物理學(xué)進(jìn)展》2017年04期

【摘要】：為了搞清Y斷陷營城組火山機(jī)構(gòu)特征及演化規(guī)律,在區(qū)域沉積背景分析基礎(chǔ)上,利用錄井、測井及地震資料,建立了營城組火山巖旋回格架,并對(duì)火山巖演化規(guī)律進(jìn)行了深入研究.將營城組劃分為三大旋回,并細(xì)分為六個(gè)期次,并利用趨勢面分析技術(shù),采用井點(diǎn)定相、相干找型、剩余構(gòu)造劃界的方法,完成營城組六個(gè)期次的火山口識(shí)別,火山口規(guī)模在各個(gè)旋回時(shí)期呈弱-變強(qiáng)-減弱的分布規(guī)律.三大旋回火山噴發(fā)具有遷移疊置、多厚度中心的特點(diǎn),不同期次火山巖噴發(fā)特征差異較大,主要表現(xiàn)在火山口面積、火山機(jī)構(gòu)幅值、火山口分布范圍以及活動(dòng)強(qiáng)度方面.并以期次五為例,總結(jié)了火山巖相平面特征,主要發(fā)育火山口、近源相組、遠(yuǎn)源相組合火山沉積相四種類型,其中,火山口相是下一步天然氣勘探的重點(diǎn).
[Abstract]:In order to find out the characteristics of volcanic mechanism and evolution law of Yingcheng formation in Y fault depression, based on the analysis of regional sedimentary background, using logging, logging and seismic data, the volcanic cycle framework of Yingcheng formation is established. The evolution law of volcanic rocks is also studied. The Yingcheng formation is divided into three cycles and subdivided into six periods. By using trend surface analysis technique, the crater identification of six periods of Yingcheng formation is completed by using the methods of well location, coherence finding and residual tectonic demarcation. The scale of crater is weakly-variable-weakened in each cycle period. The three major cyclic volcanic eruptions are characterized by superposition of migration and multiple thickness centers. The characteristics of subvolcanic eruptions are quite different in different periods, mainly in the area of crater, the amplitude of volcanic body, the distribution range of crater and the intensity of activity. Four types of volcanic sedimentary facies of volcanic facies are summarized, which are mainly developed crater, near-source facies and distant facies assemblage. Among them, crater facies is the focus of gas exploration in the next step.
【作者單位】： 東北石油大學(xué)石油工程學(xué)院;
【基金】：中國石油科技創(chuàng)新基金項(xiàng)目(2016D-5007-0212) 提高采收率原理與技術(shù)創(chuàng)新團(tuán)隊(duì)(2009td08)聯(lián)合資助
【分類號(hào)】：P618.13

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本文編號(hào)：1958132