本文選題：層序地層 + 碳同位素��； 參考：《石油學(xué)報》2017年10期

【摘要】：華北地臺寒武系碳酸鹽巖是華北地區(qū)重要的深部油氣勘探目標,加強寒武系層序格架及其充填樣式的研究對于指導(dǎo)潛山油氣藏和潛山內(nèi)幕油氣藏勘探具有重要的理論與現(xiàn)實意義。在系統(tǒng)分析典型露頭剖面巖性和沉積序列發(fā)育特征的基礎(chǔ)上,結(jié)合典型鉆井、測井資料和地震資料,共識別出3種層序邊界類型,即暴露成因的I型和II型層序邊界以及淹沒不整合型(III型)層序邊界;將華北地區(qū)中北部寒武系劃分為7個可區(qū)域性對比的三級層序,并建立層序地層格架。利用碳酸鹽巖全巖碳同位素對全球海平面變化的良好表征性,與露頭沉積微相分析得到的相對水深變化規(guī)律進行對比,探討了三級層序發(fā)育的主控因素。認為在古氣候和沉積充填速率影響不大的背景下,下寒武統(tǒng)CSQ1層序(相當于府君山組或昌平組)、CSQ2層序(相當于饅頭組)和上寒武統(tǒng)CSQ5層序(相當于崮山組)的發(fā)育受全球海平面變化和板塊內(nèi)差異沉降等構(gòu)造背景綜合控制,特別是CSQ5層序?qū)儆诘湫偷难蜎]不整合型三級層序;CSQ3層序(相當于毛莊組)、CSQ4層序(相當于徐莊組及張夏組)、CSQ6層序(相當于長山組)和CSQ7層序(相當于鳳山組)的發(fā)育主要受控于全球海平面變化。
[Abstract]:Cambrian carbonate rocks in North China platform are important targets for deep oil and gas exploration in North China. It is of great theoretical and practical significance to strengthen the study of Cambrian sequence framework and its filling pattern for guiding the exploration of buried hill reservoir and buried hill inside oil and gas reservoir. On the basis of systematic analysis of lithology and sedimentary sequence development characteristics of typical outcrop profile, combined with typical drilling, logging data and seismic data, three types of sequence boundary are identified. The Cambrian in the central and northern part of North China is divided into seven third order sequences which can be correlated regionally and the sequence stratigraphic framework is established. By using the carbon isotopes of carbonate rock to characterize the global sea level change and comparing with the relative water depth variation law obtained by outcrop sedimentary microfacies analysis, the main controlling factors of tertiary sequence development are discussed. Under the background of paleoclimate and sedimentary filling rate, The development of the lower Cambrian CSQ1 sequence (equivalent to Fujunshan formation or Changping formation) and the Upper Cambrian CSQ5 sequence (equivalent to Gushan formation) are comprehensively controlled by the tectonic background, such as global sea level change and intraplate differential subsidence. In particular, the CSQ5 sequence belongs to the typical submerged non-integrated third-order sequence CSQ3 sequence (equivalent to the Maozhuang formation and the Zhangxia formation, the same as the Xuzhuang formation and Zhangxia formation) and the CSQ7 sequence (equivalent to the Fengshan formation), in particular, the CSQ5 sequence belongs to the typical submergence non-integrated third-order sequence CSQ3 sequence (equivalent to the Maozhuang formation and the Zhangxia formation, the same as the Xuzhuang formation and the Zhangxia formation). Yu is mainly controlled by global sea level changes.
【作者單位】： 中國地質(zhì)大學(xué)能源學(xué)院;中國石油學(xué)會;西安石油大學(xué)地球科學(xué)與工程學(xué)院西安石油大學(xué)陜西省油氣成藏地質(zhì)學(xué)重點實驗室;中國石油華北油田公司地球物理勘探研究院;中國地質(zhì)大學(xué)地球科學(xué)與資源學(xué)院;中國石油華北油田公司勘探開發(fā)研究院;
【基金】：國家重大科技專項(2016ZX05006-003) 中國石油華北油田公司項目(HBYT-WTY-2015-JS-391)資助
【分類號】：P534.41;P618.13

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