歧北斜坡沙三段碎屑岩储集性能及其影响因素
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摘要
基于物性、薄片、压汞、扫描电镜、X射线衍射等资料,分析了歧口凹陷歧北斜坡沙三段储集性能及其影响因素。结果表明:歧北斜坡沙三段主要发育以岩屑长石砂岩、长石岩屑砂岩为主的辫状河三角洲沉积体系,储集孔隙以粒间溶孔、粒内溶孔、铸膜孔等次生孔隙为主;碎屑岩储集物性受物源供给、沉积相带、成岩作用三大因素控制,物源供给与沉积相带主要控制浅层(<3 000 m)碎屑岩原生储集性能,成岩作用与异常高压主要控制中深层(>3 000 m)碎屑岩次生储集孔隙。多种因素共同作用促使沙三段纵向上发育了4个异常孔隙带,生成了油气储集成藏的重要目标层段。
This work discussed the reservoir properties and influencing factors of the third member of Shahejie Formation clastic reservoirs by comprehensive study on rock physical properties,thin section identification,mercury injection,SEM and X-ray diffraction data.The results show that a number of large braided river delta front sand bodies were developed in Qibei slope,which are mainly lithic feldspathic sandstone and feldspar lithic sandstone.The major reservoir space is mainly secondary pores of intergranular dissolved pore,intragranular dissolved pore and granular molding pore.The physical properties of clastic reservoirs are constrained by provenance,sedimentary facies belt and diagenesis.The provenance and sedimentary facies belt mainly control original reservoir properties of shallow clastic reservoirs(< 3 000 m),while diagenesis and abnormal high pressure control secondary reservoir pores of medium-deep clastic reservoirs(> 3 000 m).There are four abnormally high pore zones influenced by combined factors in the third member of Shahejie Formation in Qibei slope,which are all important intervals of hydrocarbon reservoir zones.
This work discussed the reservoir properties and influencing factors of the third member of Shahejie Formation clastic reservoirs by comprehensive study on rock physical properties,thin section identification,mercury injection,SEM and X-ray diffraction data.The results show that a number of large braided river delta front sand bodies were developed in Qibei slope,which are mainly lithic feldspathic sandstone and feldspar lithic sandstone.The major reservoir space is mainly secondary pores of intergranular dissolved pore,intragranular dissolved pore and granular molding pore.The physical properties of clastic reservoirs are constrained by provenance,sedimentary facies belt and diagenesis.The provenance and sedimentary facies belt mainly control original reservoir properties of shallow clastic reservoirs(< 3 000 m),while diagenesis and abnormal high pressure control secondary reservoir pores of medium-deep clastic reservoirs(> 3 000 m).There are four abnormally high pore zones influenced by combined factors in the third member of Shahejie Formation in Qibei slope,which are all important intervals of hydrocarbon reservoir zones.
引文
程晓玲,2003.溱潼凹陷北坡阜三段碎屑岩储层特征[J]地质学刊,27(2):87-91.
高勇,张连雪,2001.板桥-北大港地区深层碎屑岩储集层特征及影响因素研究[J].石油勘探与开发,28(2)36-39.
郭长敏,施振生,2009.歧口凹陷沙一段砂岩成岩作用及孔隙演化[J].岩性油气藏,21(1):34-39.
韩国猛,司维柳,石倩茹,等,2010.歧北斜坡岩性油气藏成藏条件与有利区带优选[J].天然气地球科学,21(4)594-600.
蒋凌志,牛嘉玉,张庆昌,等,2009.渤海湾盆地深部有利储层发育的主控因素[J].地质论评,55(1):73-78.
李忠,费卫红,寿建峰,等,2003.华北东濮凹陷异常高压与流体活动及其对储集砂岩成岩作用的制约[J].地质学报,77(1):126-134.
龙更生,施和生,郑荣才,等,2011.珠江口盆地惠州凹陷深部储层成岩作用与孔隙演化[J].岩石矿物学杂志,30(4):665-673.
李颖洁,2013.哈萨克斯坦B区块三叠系储层沉积相研究[J].地质学刊,37(4):547-553.
蒲秀刚,吴永平,周建生,等,2007.歧口凹陷岩性地层油气藏特征及勘探潜力[J].石油学报,28(2):35-39.
蒲秀刚,陈长伟,柳飒,等,2011.歧口凹陷歧北斜坡沙三段挠曲坡折体系与岩性油气藏勘探[J].成都理工大学学报(自然科学版),38(6):612-618.
汤戈,2015.大港油田埕海地区沙二段碎屑岩储集性能特征及主控因素分析[J].录井工程,26(4):74-80.
万念明,王艳忠,操应长,等,2010.东营凹陷民丰洼陷北带沙四段深层超压封存箱与油气成藏[J].沉积学报,28(2):395-400.
王书香,于学敏,何咏梅,等,2010.歧口凹陷滨海地区沙河街组深层碎屑岩储层特征及主控因素[J].天然气地球科学,21(4):566-571.
汪文洋,王能盛,梅国锋,等,2013.砂岩压实作用的计算机模拟及对储层物性的预测研究[J].地质学刊,37(1)87-90.
向连格,赵虹,党犇,等,2010.靖边油田延长组长2油层组储层特征及影响因素[J].地质学刊,34(2):140-143.
谢锐杰,张喜,漆家福,2010.歧北地区深层储层特征及影响因素分析[J].石油天然气学报,32(3):47-50.
杨晓宁,陈洪德,寿建峰,等,2004.碎屑岩次生孔隙形成机制[J].大庆石油学院学报,28(1):4-6.
应凤祥,罗平,2004.中国含油气盆地碎屑岩储集层成岩作用与成岩数值模拟[M].北京:石油工业出版社.
朱筱敏,赵澄林,钟大康,等,2006.塔里木盆地东河砂岩沉积储层特征[M].北京:石油工业出版社.
张自力,李勇,张威,等,2011.歧口凹陷沙三段成岩作用对储层物性贡献率研究[J].地质学刊,35(4):354-357.
张晶,李勇,张自力,等,2012.歧口凹陷歧北斜坡沙三段成岩作用及其对储层影响分析[J].地质学刊,36(1):8-16.
高勇,张连雪,2001.板桥-北大港地区深层碎屑岩储集层特征及影响因素研究[J].石油勘探与开发,28(2)36-39.
郭长敏,施振生,2009.歧口凹陷沙一段砂岩成岩作用及孔隙演化[J].岩性油气藏,21(1):34-39.
韩国猛,司维柳,石倩茹,等,2010.歧北斜坡岩性油气藏成藏条件与有利区带优选[J].天然气地球科学,21(4)594-600.
蒋凌志,牛嘉玉,张庆昌,等,2009.渤海湾盆地深部有利储层发育的主控因素[J].地质论评,55(1):73-78.
李忠,费卫红,寿建峰,等,2003.华北东濮凹陷异常高压与流体活动及其对储集砂岩成岩作用的制约[J].地质学报,77(1):126-134.
龙更生,施和生,郑荣才,等,2011.珠江口盆地惠州凹陷深部储层成岩作用与孔隙演化[J].岩石矿物学杂志,30(4):665-673.
李颖洁,2013.哈萨克斯坦B区块三叠系储层沉积相研究[J].地质学刊,37(4):547-553.
蒲秀刚,吴永平,周建生,等,2007.歧口凹陷岩性地层油气藏特征及勘探潜力[J].石油学报,28(2):35-39.
蒲秀刚,陈长伟,柳飒,等,2011.歧口凹陷歧北斜坡沙三段挠曲坡折体系与岩性油气藏勘探[J].成都理工大学学报(自然科学版),38(6):612-618.
汤戈,2015.大港油田埕海地区沙二段碎屑岩储集性能特征及主控因素分析[J].录井工程,26(4):74-80.
万念明,王艳忠,操应长,等,2010.东营凹陷民丰洼陷北带沙四段深层超压封存箱与油气成藏[J].沉积学报,28(2):395-400.
王书香,于学敏,何咏梅,等,2010.歧口凹陷滨海地区沙河街组深层碎屑岩储层特征及主控因素[J].天然气地球科学,21(4):566-571.
汪文洋,王能盛,梅国锋,等,2013.砂岩压实作用的计算机模拟及对储层物性的预测研究[J].地质学刊,37(1)87-90.
向连格,赵虹,党犇,等,2010.靖边油田延长组长2油层组储层特征及影响因素[J].地质学刊,34(2):140-143.
谢锐杰,张喜,漆家福,2010.歧北地区深层储层特征及影响因素分析[J].石油天然气学报,32(3):47-50.
杨晓宁,陈洪德,寿建峰,等,2004.碎屑岩次生孔隙形成机制[J].大庆石油学院学报,28(1):4-6.
应凤祥,罗平,2004.中国含油气盆地碎屑岩储集层成岩作用与成岩数值模拟[M].北京:石油工业出版社.
朱筱敏,赵澄林,钟大康,等,2006.塔里木盆地东河砂岩沉积储层特征[M].北京:石油工业出版社.
张自力,李勇,张威,等,2011.歧口凹陷沙三段成岩作用对储层物性贡献率研究[J].地质学刊,35(4):354-357.
张晶,李勇,张自力,等,2012.歧口凹陷歧北斜坡沙三段成岩作用及其对储层影响分析[J].地质学刊,36(1):8-16.