龙湾筒凹陷九佛堂组火山岩岩相特征研究
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Keywords: volcanic lithofacies; volcanic; Jiufotang Formation; Longwantong sag
来稿日期：２０１８－１０－３０ ＤＯＩ： １０．１３９３７／ｊ．ｃｎｋｉ．ｈｂｄｚｄｘｘｂ．２０１９．０４．００３ 作者简介：姜立（１９８５—），女，湖北荆州人，矿产普查与勘探专业硕士，工程师，主要从事油气田勘探地质 研究工作。
资
源
上依次为：前义县组、下白垩统义县组、九佛堂组、 石多已蚀变，方解石化、粘土化和绢云母化明显。
与
勘
沙海组、阜新组、上白垩统[1,2]，油气勘探的主要目
粗安岩（图2-b、图2-e）：岩石呈浅灰色，具杏
查
的层为九佛堂组和沙海组。
仁-气孔构造，气孔呈椭圆-不规则状，多为绿泥石、
随着油气勘探的不断深入和研究技术手段的进 方解石、硅质和沸石充填，岩石具斑状结构，斑晶为
摘要：论文利用已有钻井取心和薄片等资料，系统研究火山岩的岩石学特征。利用新处理的地震资料 和测井资料，分析火山岩相的平面展布特征，并预测有利储层的发育范围。研究表明：火山岩岩性以中 性和中碱性为主，包括安山岩、粗面岩、粗安岩、火山角砾岩和凝灰岩等；九佛堂时期火山活动分为三 期，早期火山作用强烈，以点式喷发为主，晚期逐渐减弱，火山岩的分布受控洼断裂和古地形的控制， 岩相分为爆发相、溢流相和火山沉积相；其中，溢流相上部亚相火山岩具有裂缝和气孔两大储集空间， 储集性能明显好于其它相带。
021
龙 湾 筒 凹 陷 位 于 内 蒙 古 自 治 区 科 尔 沁 左 翼 后 色，具气孔-杏仁构造，气孔多呈圆形-椭圆形，气孔
旗，地跨通辽市、库伦旗，总面积1 310 km2，为中 中多半充填绿泥石和方解石。岩石具斑状结构，斑晶
地
质
生代凹陷，构造走向为北北东向，发育的地层自下而 有辉石、角闪石、黑云母，基质具玻晶交织结构。岩
020
地 质
Study on Characteristics of Volcanic Lithofacies in Jiufotang Formation of
资 源
Lon 查
龙湾筒凹陷九佛堂组火山岩岩相特征研究
姜 立 JIANG Li
中国石油辽河油田分公司，辽宁 盘锦 １２４０１０ Ｐｅｔｒｏｃｈｉｎａ Ｌｉａｏｈｅ Ｏｉｌｆｉｅｌｄ Ｃｏｍｐａｎｙ， Ｐａｎｊｉｎ １２４０１０， Ｃｈｉｎａ
关键词：火山岩岩相；火山岩；九佛堂组；龙湾筒凹陷
中图分类号：TE 122.24 文献标识码：A 文章编号：1007-6875(2019)04-0020-05
Abstract: In this paper,the petrological feature of volcanic rocks was researched systematically by using the information of drill cores and rock slices which can be selected. The characteristics of surface distribution of volcanic lithofacies were analyzed before the distribution scope of advantageous reservoirs was forecasted. In the two kinds of investigative work, the seismic data and logging data that were both processed recently were utilized well. So, some new viewpoints were proposed through this study. Neutral volcanics and alkaline volcanics were the most in all volcanics of Jiufotang formation, including andesites, trachytes, trachyandensites, lava breccias, tuffs, etc. Volcanic activity has happened three times during the whole Jiufotang period. The early period volcanic activity was the strongest which erupted from a point mostly, but the activity of volcanic became weak gradually from then. The distribution of volcanics was controlled by the ancient landforms and the fractures which have ever controlled a sub-sag. The volcanic lithofacies were divided into eruption facies, overflow facies and volcano sedimentary facies. Among these lithofacies the volcanics from the upper subfacies of the overflow facies had two kinds of reservoir spaces which included fractures and air holes. The performance of this kind of volcanic reservoirs was obviously better than those of other kinds of volcanic reservoirs.
来稿日期：２０１８－１０－３０ ＤＯＩ： １０．１３９３７／ｊ．ｃｎｋｉ．ｈｂｄｚｄｘｘｂ．２０１９．０４．００３ 作者简介：姜立（１９８５—），女，湖北荆州人，矿产普查与勘探专业硕士，工程师，主要从事油气田勘探地质 研究工作。
资
源
上依次为：前义县组、下白垩统义县组、九佛堂组、 石多已蚀变，方解石化、粘土化和绢云母化明显。
与
勘
沙海组、阜新组、上白垩统[1,2]，油气勘探的主要目
粗安岩（图2-b、图2-e）：岩石呈浅灰色，具杏
查
的层为九佛堂组和沙海组。
仁-气孔构造，气孔呈椭圆-不规则状，多为绿泥石、
随着油气勘探的不断深入和研究技术手段的进 方解石、硅质和沸石充填，岩石具斑状结构，斑晶为
摘要：论文利用已有钻井取心和薄片等资料，系统研究火山岩的岩石学特征。利用新处理的地震资料 和测井资料，分析火山岩相的平面展布特征，并预测有利储层的发育范围。研究表明：火山岩岩性以中 性和中碱性为主，包括安山岩、粗面岩、粗安岩、火山角砾岩和凝灰岩等；九佛堂时期火山活动分为三 期，早期火山作用强烈，以点式喷发为主，晚期逐渐减弱，火山岩的分布受控洼断裂和古地形的控制， 岩相分为爆发相、溢流相和火山沉积相；其中，溢流相上部亚相火山岩具有裂缝和气孔两大储集空间， 储集性能明显好于其它相带。
021
龙 湾 筒 凹 陷 位 于 内 蒙 古 自 治 区 科 尔 沁 左 翼 后 色，具气孔-杏仁构造，气孔多呈圆形-椭圆形，气孔
旗，地跨通辽市、库伦旗，总面积1 310 km2，为中 中多半充填绿泥石和方解石。岩石具斑状结构，斑晶
地
质
生代凹陷，构造走向为北北东向，发育的地层自下而 有辉石、角闪石、黑云母，基质具玻晶交织结构。岩
020
地 质
Study on Characteristics of Volcanic Lithofacies in Jiufotang Formation of
资 源
Lon 查
龙湾筒凹陷九佛堂组火山岩岩相特征研究
姜 立 JIANG Li
中国石油辽河油田分公司，辽宁 盘锦 １２４０１０ Ｐｅｔｒｏｃｈｉｎａ Ｌｉａｏｈｅ Ｏｉｌｆｉｅｌｄ Ｃｏｍｐａｎｙ， Ｐａｎｊｉｎ １２４０１０， Ｃｈｉｎａ
关键词：火山岩岩相；火山岩；九佛堂组；龙湾筒凹陷
中图分类号：TE 122.24 文献标识码：A 文章编号：1007-6875(2019)04-0020-05
Abstract: In this paper,the petrological feature of volcanic rocks was researched systematically by using the information of drill cores and rock slices which can be selected. The characteristics of surface distribution of volcanic lithofacies were analyzed before the distribution scope of advantageous reservoirs was forecasted. In the two kinds of investigative work, the seismic data and logging data that were both processed recently were utilized well. So, some new viewpoints were proposed through this study. Neutral volcanics and alkaline volcanics were the most in all volcanics of Jiufotang formation, including andesites, trachytes, trachyandensites, lava breccias, tuffs, etc. Volcanic activity has happened three times during the whole Jiufotang period. The early period volcanic activity was the strongest which erupted from a point mostly, but the activity of volcanic became weak gradually from then. The distribution of volcanics was controlled by the ancient landforms and the fractures which have ever controlled a sub-sag. The volcanic lithofacies were divided into eruption facies, overflow facies and volcano sedimentary facies. Among these lithofacies the volcanics from the upper subfacies of the overflow facies had two kinds of reservoir spaces which included fractures and air holes. The performance of this kind of volcanic reservoirs was obviously better than those of other kinds of volcanic reservoirs.