济阳坳陷纯化油田侵入岩-泥岩变质带油气藏成藏特征与识别
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摘要
以济阳坳陷纯化油田火成岩油气藏的开采特征及地质资料分析为基础,总结了侵入岩-泥岩变质带油气藏的特征和成因。根据侵入岩刺穿地层产状的不同,将泥岩变质带油气藏划分为上拱刺穿和顺层刺穿2种类型。上拱刺穿型油气沿复合输导体系运移,多形成环状或圆片状裂缝型油气藏;顺层刺穿型油气以侧向运移为主,以形成大规模的片状油气藏为特征。研究表明,泥岩变质带在岩心特征、测井相和地震相上均具有明显的识别标志,具有良好的勘探前景,该油藏类型的提出扩大了火成岩相关油气藏的找油领域。
Based on the development characteristics of igneous rock reservoirs and geologic data analysis in Shunhua Oilfield of Jiyang Depression,the characteristics and genesis of reservoirs in intrusion-rock-mudstone metamorphic belts were summarized.According to the occurrence differences of intrusion rock diapiric reservoirs,the reservoirs in mudstone metamorphic belts were divided into 2 types,such as upward arch piercement and piercement along the zones.The upward arch piapiric oil and gas were migrated along the composite transport system,most of them created circular and sheet-like fractured reservoirs,oil and gas piapired along zones were laterally migrated,by which large scale of sheet type reservoirs were created.Study shows that the mudstone metamorphic belts have recognition marks in the areas of cores,logging and seism,it has good prospects of oil exploration.The reservoir type expands the sphere of oil and gas reservoir exploration related with igneous rocks.
Based on the development characteristics of igneous rock reservoirs and geologic data analysis in Shunhua Oilfield of Jiyang Depression,the characteristics and genesis of reservoirs in intrusion-rock-mudstone metamorphic belts were summarized.According to the occurrence differences of intrusion rock diapiric reservoirs,the reservoirs in mudstone metamorphic belts were divided into 2 types,such as upward arch piercement and piercement along the zones.The upward arch piapiric oil and gas were migrated along the composite transport system,most of them created circular and sheet-like fractured reservoirs,oil and gas piapired along zones were laterally migrated,by which large scale of sheet type reservoirs were created.Study shows that the mudstone metamorphic belts have recognition marks in the areas of cores,logging and seism,it has good prospects of oil exploration.The reservoir type expands the sphere of oil and gas reservoir exploration related with igneous rocks.
引文
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[3]潘保芝,李舟波,石雨田.测井曲线剩余变化的分维描述火成岩裂缝发育情况[J].吉林大学学报(地球科学版),2002,32(4):399～402.
[4]李春光.东营凹陷断裂系统对油气藏分布的控制[J].石油与天然气地质,1994,15(1):87～93.
[5]操应长,姜在兴,邱隆伟.山东惠民凹陷商741块火成岩油藏储集空间类型及形成机理探讨[J].岩石学报,1999,15(1):129～136.
[6]吕希学,肖焕钦,刘惠民等.根据地震勘查信息预测火成岩储集体[J].浙江大学学报(工学版),2003,37(2):249～253.
[7]郭秀娟,潘保芝,吴海波等.徐家围子断陷火成岩裂缝性地层的测井特征与识别[J].石油物探,2004,43(3):301～306.
[8]谢庆宾,韩德馨,朱筱敏等.三塘湖盆地火成岩储集空间类型及特征[J].石油勘探与开发,2002,29(1):84～87.
[9]宋建勇,吴时国,蒲玉国等.东营凹陷纯西地区辉绿岩岩体的相带识别[J].石油勘探与开发,2004,31(4):40～43.
[10]王大跃,张映红.渤海湾油气区火成岩外变质带储集层中碳酸盐岩胶结物成因研究及意义[J].石油勘探与开发,2001,28(2):40～43.
[11]牛嘉玉,张映红.渤海湾盆地侵入岩-外变质带油气藏类型及成藏条件[J].特种油气藏,2003,10(1):22～26.
[12]荣启宏,宋建勇,蒲玉国.火成岩遮挡油藏特征及滚动勘探开发实践[J].石油学报,2002,23(1):45～50.
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