南黄海崂山隆起地震采集方法  

ON SEISMIC ACQUISITION METHODS ON THE LAOSHAN UPLIFT OF THE SOUTH YELLOW SEA

作　　者：刘俊[1,2,3] 吴淑玉[2,3] 施剑[2,3] 陈建文[2,3] 何玉华[2,3] 李玉剑 张迎春 

机构地区：[1]中国地质大学(武汉)资源学院,武汉430074 [2]国土资源部海洋油气资源与环境地质重点实验室,中国地质调查局青岛海洋地质研究所,青岛266071 [3]海洋国家实验室海洋矿产资源评价与探测技术功能实验室,青岛266071 [4]中石化海洋石油工程有限公司上海物探分公司,上海201208

出　　处：《海洋地质前沿》2016年第10期24-29,共6页Marine Geology Frontiers

基　　金：国家海洋局海底重点实验室基金(KLSG1603);国土资源部海洋油气资源和环境地质重点实验室基金(MRE201318,MRE201121);南黄海油气资源调查(DD20160512);南黄海前第三系油气前景研究(XQ-2005-01);南黄海海域油气资源普查(GZH200800503);南黄海崂山隆起和滩海区海相地层油气资源战略选区(XQ-2009-15)

摘　　要：南黄海盆地崂山隆起经历了多期构造运动,中生界地层几乎剥蚀殆尽,使得新生界底界存在高速屏蔽层,地震波能量难以下传,同时由于下伏中—古生界主要以碎屑岩、碳酸盐岩为主,反射系数小,导致南黄海崂山隆起深部中—古生界地震成像效果较差,信噪比低。为了提高地震波能量下传,改善深部地震成像效果,近几年在南黄海崂山隆起开展了较大气枪容量震源、长电缆地震采集方法。通过系统分析近几年崂山隆起地震采集参数,针对研究区中—古生界地质条件特征,结合实际地震资料效果进行论证分析,得出了适合南黄海崂山隆起的地震采集参数建议。The Mesozoic is almost completely eroded on the Laoshan Uplift of the South Yellow Sea,and there is a high-velocity shield below the Cenozoic.Therefore,the seismic wave energy is difficult to penetrate downwards.The underlying Paleozoic strata consist mainly of carbonate and clastic rocks,which are petrophysically little different,and thus the reflection coefficient is small.As the results,seismic images of the deeper Paleozoic strata are bad in quality and the signal to noise ratio is low.In order to improve the penetration of seismic wave energy and enhance the seismic imaging of the Paleozoic strata,seismic acquisition using a large airgun source and long cable have been carried out in the South Yellow Sea recently.In this paper,seismic acquisition parameters suitable for oil and gas survey of the Paleozoic strata at the Laoshan uplift are recommended upon the seismic acquisition parameters collected from recent data.

关 键 词：南黄海 崂山隆起 中—古生界 采集参数 

分 类 号：P631.443[天文地球—地质矿产勘探]