胜坨地区沙四上亚段砂砾岩类型及储层特征
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摘要
综合地震、测井、录井、岩芯、薄片及粒度等资料,对东营凹陷胜坨地区沙四上亚段砂砾岩体的沉积特征、成因类型及储层特征进行了研究。胜坨地区沙四上亚段砂砾岩体具有较低的成分成熟度和结构成熟度,粒度概率累积曲线包括上拱形、低斜两段式和低斜多段式等类型,叠覆冲刷、滑塌变形、泥岩撕裂屑、重荷模与火焰构造等反映重力流沉积特征的沉积构造十分发育。砂砾岩体的主要类型包括靠近物源的近岸水下扇、远离物源的湖底扇以及断槽中发育的沟道浊积岩;储层以近岸水下扇和湖底扇的辫状水道砂体物性最好,储集空间以次生孔缝为主,孔隙结构主要表现为中孔中细喉型。
The sedimentary characteristics,genetic types and reservoir characteristics of glutenite in upper Es4 member of Shengtuo area in Dongying Depression have been studied based on the seismic data,well logging data,core data,thin section and grain size data.The compositional maturity and textural maturity of glutenite are relatively lower in this area.The types of granularity probability accumulation curve include upward shape,two low gradient sections shape and several low gradient sections shape and so on.And the sedimentary structures which can inflect the gravity flow such as slump structure,load cast and flame structure are very common in the glutenite of upper Es4 member in Shengtuo area.The main genetic types of glutenite include nearshore subaqueous fan,sublacustrine fan and channel turbidite.The physical properties of braided channel sandbodies of nearshore subaqueous fan and sublacustrine fan are the best.Their reservoir pore spaces are mainly the secondary pores and fractures,and the middle pore with middle-slender throat is the main pore structure type of glutenite.
The sedimentary characteristics,genetic types and reservoir characteristics of glutenite in upper Es4 member of Shengtuo area in Dongying Depression have been studied based on the seismic data,well logging data,core data,thin section and grain size data.The compositional maturity and textural maturity of glutenite are relatively lower in this area.The types of granularity probability accumulation curve include upward shape,two low gradient sections shape and several low gradient sections shape and so on.And the sedimentary structures which can inflect the gravity flow such as slump structure,load cast and flame structure are very common in the glutenite of upper Es4 member in Shengtuo area.The main genetic types of glutenite include nearshore subaqueous fan,sublacustrine fan and channel turbidite.The physical properties of braided channel sandbodies of nearshore subaqueous fan and sublacustrine fan are the best.Their reservoir pore spaces are mainly the secondary pores and fractures,and the middle pore with middle-slender throat is the main pore structure type of glutenite.
引文
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[25]漆滨汶,林春明,邱桂强,等.山东省牛庄洼陷古近系沙河街组沙三中亚段储集层成岩作用研究[J].沉积学报,2007,25(1):99-109.
[2]Dasgupta P.Architecture and facies pattern of a sublacustrine fan,Jharia Basin,India[J].Sedimentary Geology,2002,148:373-387.
[3]韩宏伟,崔红庄,林松辉,等.东营凹陷北部陡坡带砂砾岩扇体地震地质特征[J].特种油气藏,2002,10(4):28-30.
[4]林松辉,王华,王兴谋,等.断陷盆地陡坡带砂砾岩扇体地震反射特征——以东营凹陷为例[J].地质科技情报,2005,24(4):55-59,66.
[5]谢风猛,武法东,陈建渝,等.渤海湾盆地滨南油田砂砾岩扇体空间展布与成藏规律[J].石油实验地质,2002,24(4):334-338.
[6]姜素华,林红梅,王永诗.陡坡带砂砾岩扇体油气成藏特征——以济阳坳陷为例[J].石油物探,2003,42(3):313-317.
[7]袁选俊,谯汉生.渤海湾盆地富油气凹陷隐蔽油气藏勘探[J].石油与天然气地质,2002,23(2):130-133.
[8]姜在兴,王卫红,杨伟利.21世纪中国石油勘探战略展望[J].石油大学学报:自然科学版,2002,26(2):1-10.
[9]孙海宁,王洪宝,欧浩文,等.砂砾岩储层地震预测技术[J].天然气工业,2007,27(S1):397-398.
[10]曹正林,邓毅林,石兰亭,等.断陷湖盆水下扇岩性油藏评价方法研究[J].西南石油大学学报:自然科学版,2008,30(3):45-49.
[11]黄文科,戴俊生,窦之林,等.胜坨油田储层砂体建筑结构分析[J].西南石油大学学报,2007,29(3):32-35.
[12]张林哗,刘庆,张春荣,等.陆相断陷盆地成烃与成藏组合关系研究——以胜坨油田为例[J].沉积学报,2004,22(S):8-14.
[13]孙永壮.东营凹陷胜坨地区沙河街组沉积体系及其油气源特征[J].中国石油大学学报:自然科学版,2006,30(6):24-30.
[14]李春华,祝传林,王风华.东营凹陷胜坨地区沙三沙四段扇体特征与岩性油气藏[J].石油大学学报:自然科学版,2003,27(3):14-21.
[15]朱光有,金强,周建林,等.济阳坳陷胜坨油田原油物性及其成因探讨[J].石油与天然气地质,2004,25(1):9-13.
[16]任建业,张青林,陆永潮.东营凹陷弧形断裂坡折带系统及其对低位域砂体的控制[J].沉积学报,2004,22(4):628-635.
[17]袁静,徐根旺.东营凹陷永554古近系沙四段沟道浊积岩相模式[J].煤田地质与勘探,2003,31(6):11-14.
[18]王留奇,姜在兴,操应长,等.东营凹陷沙河街组断槽重力流水道沉积研究[J].石油大学学报:自然科学版,1994,18(3):19-25.
[19]孔凡仙.东营凹陷北部陡坡带砂砾岩体的勘探[J].石油地球物理勘探,2000,35(5):669-676.
[20]王宝言,隋风贵.济阳坳陷断陷湖盆陡坡带砂砾岩体分类及展布[J].特种油气藏,2003,10(3):38-41.
[21]鄢继华,陈世悦,姜在兴.东营凹陷北部陡坡带近岸水下扇沉积特征[J].石油大学学报:自然科学版,2005,29(1):12-16.
[22]宋宁,林春明,于正军,等.东营凹陷坨71块近源浊积扇沉积特征[J].西安石油大学学报:自然科学版,2005,20(4):39-42.
[23]吴富强.渤南洼陷沙四上亚段浊积体沉积相划分[J].新疆石油地质,2004,25(3):251-253.
[24]姜在兴,王卫红,余宏忠.渤南油田义3-7-7井高精度层序地层格架分析[J].石油勘探与开发,2003,30(3):26-28.
[25]漆滨汶,林春明,邱桂强,等.山东省牛庄洼陷古近系沙河街组沙三中亚段储集层成岩作用研究[J].沉积学报,2007,25(1):99-109.
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