也门X区块下白垩统沉积相分析
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摘要
为了弄清也门X区块下白垩统地层的沉积相特征和评价其潜在的含油气性,运用了地震相和测井以及地震层速度等综合分析手段,分析了区内下白垩统的沉积相,认为下白垩统主要为一套陆棚背景的陆源碎屑—碳酸盐岩的混合沉积,主要包括混积潮坪亚相、混积内陆棚亚相和混积外陆棚亚相,在此基础上指出,研究区的西南侧含砂量大,离物源近,可作为有利勘探区。
To find out sedimentary facies features of the Lower Cretaceous formation of X block in Yemen,and evaluate its potential oil and gas bearing characters,we use comprehensive methods,such as seismic facies,logging and earthquake interval velocity etc,to analyse the Lower Cretaceous sedimentary facies in the area.We think the Lower Cretaceous formation is mainly a set of terrigenous clastic-carbonatite deposition in a continental shelf environment,chiefly including the mixed deposited tidal shoal parfacies,the mix deposited inner shelf parfacies,and the mixed deposited outer shelf parfacies.At the same time,the southwest side,where sand content is large and near provenance,can be a favorable place for exploration.
To find out sedimentary facies features of the Lower Cretaceous formation of X block in Yemen,and evaluate its potential oil and gas bearing characters,we use comprehensive methods,such as seismic facies,logging and earthquake interval velocity etc,to analyse the Lower Cretaceous sedimentary facies in the area.We think the Lower Cretaceous formation is mainly a set of terrigenous clastic-carbonatite deposition in a continental shelf environment,chiefly including the mixed deposited tidal shoal parfacies,the mix deposited inner shelf parfacies,and the mixed deposited outer shelf parfacies.At the same time,the southwest side,where sand content is large and near provenance,can be a favorable place for exploration.
引文
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[2]王佑宁.也门69区块构造特征与勘探方向分析[J].石油天然气学报,2007,29(5):44-49.
[3]童晓光,朱向东.立足国内外两种资源发展石油工业[J].西南石油学院学报,1996,18(1):1-8.
[4]吕延仓,何碧竹,张孝义.也门石油工业及勘探开发前景[J].当代石油石化,2001,9(9):36-39.
[5]黄彦庆,侯读杰,江尚昆,等.也门马里卜—夏布瓦盆地的地质模式和油气成藏风格[J].中国石油勘探,2007,(6):58-63.
[6]王晓平,陈波,臧殿光,等.地震相分析技术在伊通地堑储层沉积特征分析中的应用[J].石油物探,2008,(2):172-178.
[7]杨占龙,陈启林,郭精义.“三相”联合解释技术在岩性油气藏勘探中的应用——以吐哈盆地胜北地区为例[J].天然气地球科学,2007,18(3):370-374.
[8]李红哲,杨占龙,吴青鹏,等.沉积相分析在岩性油气藏勘探中的应用——以吐哈盆地胜北洼陷中侏罗统—白垩系为例[J].天然气地球科学,2006,17(5):698-702.
[9]徐怀大,王世风,陈开元.地震地层学解释基础[M].武汉:中国地质大学出版社,1990:28-35.
[10]黄小平,杜洪凌,史晓川.地震相分析在石南21井区沉积相划分中的应用[J].新疆石油地质,2004,25(6):671-672.
[11]董春梅,张宪国,林承焰.地震沉积学的概念、方法和技术[J].沉积学报,2006,24(5):698-704.
[12]董春梅,张宪国,林承焰.有关地震沉积学若干问题的探讨[J].石油地球物理勘探,2006,41(4):405-409
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