苏北盆地海安地区戴南组岩性油气藏成藏规律研究
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摘要
在岩性油气藏勘探中,准确预测砂体及分析成藏规律是寻找油气藏的关键。海安地区戴南组地层岩性油气藏比较发育。从生、储、盖三方面分析了戴南组地层的成藏条件,结合地震资料、钻井情况、波阻抗反演,对研究区的成藏规律进行了研究。海安地区岩性油气藏具有近油源、富砂体、占高点的特点。研究区岩性油气藏主要是砂岩上倾尖灭成藏,油气通过断层和砂体运移,在构造高部位聚集,而低部位砂体仅作为油气运移通道。这为海安地区岩性油气藏钻探指引了方向。
In lithology oil reservoir exploration,key point of seeking reservoir is to predict sand accurately and analyse reservoir pattern.In DaiNan formation of HaiAn area,lithology reservoir is widely developed.This paper demonstrates the conditions of reservoir in DaiNan formation from three aspects,generation,storage and seal,combining seismic data,drilling information,and acoustic impedance inversion,the pattern of reservoir is found out.The lithology reservoir in this study area has the characteristics of near source rock,sand rich and heigh position.The lithology reservoirs mainly are top updip reservoir,oil and gas migrate through faults and sands,and accumulate in the heigh position of the structure.The downdip lower sands are only pathway of oil and gas.This pattern gives the direction of lithology reservoir prospecting in HaiAn area.
In lithology oil reservoir exploration,key point of seeking reservoir is to predict sand accurately and analyse reservoir pattern.In DaiNan formation of HaiAn area,lithology reservoir is widely developed.This paper demonstrates the conditions of reservoir in DaiNan formation from three aspects,generation,storage and seal,combining seismic data,drilling information,and acoustic impedance inversion,the pattern of reservoir is found out.The lithology reservoir in this study area has the characteristics of near source rock,sand rich and heigh position.The lithology reservoirs mainly are top updip reservoir,oil and gas migrate through faults and sands,and accumulate in the heigh position of the structure.The downdip lower sands are only pathway of oil and gas.This pattern gives the direction of lithology reservoir prospecting in HaiAn area.
引文
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[2]石亚军,曹正林等.柴西南地区岩性油气藏的富集特征[J].天然气工业,2009,29(2):37~41.
[3]杨占龙,陈启林.岩性圈闭与陆相盆地岩性油气藏勘探[J].天然气地球科学,2006,17(5):616~621.
[4]刘震,赵阳,肖伟等.内蒙古二连盆地岩性油藏形成与分布的优势性特征[J].现代地质,2005,19(4):570~578.
[5]庞雄奇,陈冬霞,李丕龙等.砂岩透镜体成藏门限及控油气作用机理[J].石油学报,2003,24(3):38~41.
[6]金强,查明,赵磊.柴达木盆地西部第三系盐湖相有效生油岩的识别[J].沉积学报,2001,19(1):125~129.
[7]孙耀华,张永华,罗涛.泌阳凹陷隐蔽油气藏勘探技术实践探索[J].江汉石油学院学报,2003,25(3):43~44.
[8]张运东,薛红兵,薛红珍等.国内外隐蔽油气藏勘探现状[J].中国石油勘探,2005,10(3):64~68.
[9]杨占龙,陈启林.关于吐哈盆地台北凹陷岩性油气藏勘探的几点思考[J].天然气地球科学,2006,17(6):323~329.
[10]蒲秀刚,吴永平,周建生等.歧口凹陷岩性地层油气藏特征及勘探潜力[J].石油学报,2007,28(2):35~39.
[11]陈广军,宋国奇,王永诗,张世民.斜坡带低位扇砂岩体岩性油气藏勘探方法——以埕岛潜山披覆构造东部斜坡带为例[J].石油学报,2002,23(3):34~38.
[12]邹才能,李明,赵文智,等.松辽南部构造—岩性油气藏识别技术及应用[J].石油学报,2004,25(3):32~36.
[13]王西文.在相对波阻抗约束下的多井测井参数反演方法和应用[J].石油地球物理勘探,2004,39(3)291~299.
[14]高喜龙,孙希瑞,李顺玲等.5测井约束反演在埕岛油田储层预测中的应用[J].石油地球物理勘探,2001,36(3)334~338.
[15]张学芳,董月昌,慎国强,等.5曲线重构技术在测井约束反演中的应用[J].石油勘探与开发,2005,32(3):70~72.
[16]陈军,陈岩.地震属性分析在储层预测中的应用[J].石油物探,2001,40(3):94~99.
[17]王鑫.地震属性技术在王73地区储层预测中的应用[J].石油物探,2007,46,(3):272~277.
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