准噶尔盆地阜东斜坡带深水浊积扇沉积及油气勘探意义
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摘要
通过对准噶尔盆地阜东斜坡带侏罗系三工河组的岩性组合、粒度分析和地震反射特征等方面的研究,认为储油砂体主要为浊积岩,岩性为灰色泥岩、灰色中砂岩和灰色粗砂岩夹砂砾岩。岩石成份成熟度和结构成熟度均较低,见典型鲍马沉积序列,浊积扇是不稳定三角洲前缘砂质沉积物向坡折带及深水盆地的再分配的结果。研究该区具有多个浊积扇体,其中阜16井已获得低产油气流,说明阜东斜坡带具有良好的勘探前景。
The integration of lithologic assemblage,core,grain size and seismic reflection data on the Jurassic strata in the Sangonghe Formation in the eastern Fukang slope zone,Junggar Basin,Xinjiang has disclosed that the reservoir sandstones dominantly consist of turbidites including grey mudstone,grey medium-to coarse-grained sandstone intercalated with sandstone and conglomerate with low compositional and textural maturity and typical Bouma sequences.The turbidite fans in the study area resulted from the redeposition of the unstable delta front sandy sediments in the slope break zone and deep-water basin,and may be highly prospective for the oil-gas exploration.
The integration of lithologic assemblage,core,grain size and seismic reflection data on the Jurassic strata in the Sangonghe Formation in the eastern Fukang slope zone,Junggar Basin,Xinjiang has disclosed that the reservoir sandstones dominantly consist of turbidites including grey mudstone,grey medium-to coarse-grained sandstone intercalated with sandstone and conglomerate with low compositional and textural maturity and typical Bouma sequences.The turbidite fans in the study area resulted from the redeposition of the unstable delta front sandy sediments in the slope break zone and deep-water basin,and may be highly prospective for the oil-gas exploration.
引文
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[12]张琴,张满郎,朱筱敏,等.准噶尔盆地阜东斜坡区侏罗纪物源分析[J].新疆石油地质.1999,20(6):501-504.
[13]张琴,朱筱敏,张满郎,等.准噶尔盆地阜东斜坡区侏罗系层序地层格架的建立[J].沉积学报.2001,19(4):575-580.
[14]常迈,刘震,梁全胜,等.准噶尔盆地阜东斜坡带中上侏罗统岩性圈闭形成条件及成藏主控因素分析[J].西安石油大学学报(自然科学版)2007,22(6):20-23.
[15]梁全胜,常迈,韩军.阜东斜坡带中上侏罗统疏导系统发育特征及油气运聚模式分析[J].西安石油大学学报(自然科学版).2006,21(4):29-32.
[2]GALLYOWAY W E.Silicalstic slop and base of slop depositionalsystems:component of facies,statigraphic architecture,andclassification[J].AAPG Bulltin,1998,82(4):569-595.
[3]彭大钧,庞雄,黄先律,等.南海珠江深水扇系统的形成模式[J].石油学报.2007,28(5):7-11.
[4]庞雄,申俊,袁立忠,等.南海珠江深水扇系统及其油气勘探前景[J].石油学报.2006,28(5):11-15.
[5]张晶,王伟峰,荣启宏,等.东营凹陷永55区块沙四上亚段深水浊积扇沉积与油气[J].吉林大学学报(地球科学版).2007,37(3):519-524.
[6]雷怀玉,邹伟宏,王连军,等.岔西地区浊积岩的发现及其油气勘探意义[J].沉积学报.1999,17(1):89-94.
[7]高飞,王萍,游兴友,等.史南地区浊积岩油藏描述[J].油气地质与采收率.2003,10(1):55-57.
[8]张满郎,朱筱敏,张琴.准噶尔盆地阜东斜坡区侏罗系沉积特征[J].沉积于特提斯地质,2000,20(4):60-70.
[9]SAHUB K Depositional mechanisms from the size analysis of clas-tic sediments[J].J.Sed.Petro.,1964,(34):73-83.
[10]张琴,朱筱敏,张满郎.准噶尔盆地阜东斜坡区侏罗系地震相研究[J].石油大学学报(自然科学版).2001,25(1):72-76.
[11]操应长,刘晖.湖盆三角洲沉积坡度带特征及其与滑塌浊积岩分布关系的初步探讨[J].地质论评.2007,53(4):454-458.
[12]张琴,张满郎,朱筱敏,等.准噶尔盆地阜东斜坡区侏罗纪物源分析[J].新疆石油地质.1999,20(6):501-504.
[13]张琴,朱筱敏,张满郎,等.准噶尔盆地阜东斜坡区侏罗系层序地层格架的建立[J].沉积学报.2001,19(4):575-580.
[14]常迈,刘震,梁全胜,等.准噶尔盆地阜东斜坡带中上侏罗统岩性圈闭形成条件及成藏主控因素分析[J].西安石油大学学报(自然科学版)2007,22(6):20-23.
[15]梁全胜,常迈,韩军.阜东斜坡带中上侏罗统疏导系统发育特征及油气运聚模式分析[J].西安石油大学学报(自然科学版).2006,21(4):29-32.
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