地震地质综合解释技术在东海西湖凹陷A气田的应用  

Application of seismic and geological comprehensive interpretation techniques in the A gas field of the Xihu depression in the East China Sea

作　　者：刘建斌 赵洪 唐贤君 李帅 刘庆文 LIU Jian-Bin;ZHAO Hong;TANG Xian-Jun;LIi Shuai;LU Qing-Wen(Shanghai Branch of CNOOC Ltd.,Shanghai 200335,China)

机构地区：[1]中海石油(中国)有限公司上海分公司,上海200335

出　　处：《上海国土资源》2018年第2期98-101,109,共5页Shanghai Land & Resources

基　　金："十三五"国家科技重大专项"东海低渗-致密天然气勘探开发技术"(2016ZX05027001)

摘　　要：西湖凹陷西部斜坡带A气田投入开发以来,由于砂体横向变化快且规律不清,导致可动用储量大幅减少。本文在三维地震资料精细解释的基础上,开展了构造演化、地震沉积学以及储层地震学的研究,认为平北区平湖组地层先沉积后褶皱,古隆起两侧局部褶皱带有利于早期物源砂体的沉积,是研究区有利的成藏构造区带;利用地层切片技术的地震沉积学研究方法在精细研究的基础上针对A气田周边某目标进行了正反演交叉验证分析。综合研究表明地震地质综合解释技术的研究方法可有效运用于平北区的精细砂体刻画与储层预测研究。Since the development of the A gas field of the Xihu depression began,the reserves of the gas bearing sands have changed rapidly.This study was based on the fine interpretation of 3D seismic data,tectonic evolution characteristics,seismic sedimentology,and reservoir seismology research study indicating that the Pinghu formation of Pingbei folded after depositing.The local fold belt on both sides of the paleo uplift is not only advantageous to the depositing of provenance in early stages,but also propitious to the accumulation and preservation of gas in later stages.It is the most favorable tectonic zone of the study area.The seismic sedimentology study using the stratal slicing technique can be effective in researching the description of the fine sedimentary phase.Based on a detailed study aimed at a certain target in the A gas field periphery,forward and inversion cross validation analysis has been carried out.The positive effects of seismic and geological comprehensive interpretation techniques show that this method can be applied to fine sand body characterization and reservoir prediction in the Pingbei area.

关 键 词：海洋地质 东海盆地 西湖凹陷 地震沉积学 等时地层切片 

分 类 号：P736.12[天文地球—海洋地质]