辽河油区火成岩油气藏勘探研究现状
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摘要
经过多年勘探实践,辽河油区在3大凹陷和外围中生界盆地发现了粗面岩、安山岩、辉绿岩等多种类型火成岩油气藏,初步形成了火成岩岩性识别、地震储层预测、岩相分析预测、储层测井评价等勘探配套技术系列。油藏主要发育于中生界和古近系沙三段,除粗面岩油藏外,油藏规模整体偏小,且具有以下特征:与烃源岩共生的火成岩成藏机率较高;火成岩物性受埋深影响小,受后期构造改造影响大;油气成藏受储集空间、岩性、发育层位、所处构造部位等综合因素控制。同时勘探还面临着地震资料攻关、岩体裂缝预测、火成岩成藏机理研究等系列技术难题。
Through many years of exploration in Liaohe Oilfield,various types of igneous reservoirs including trachyte,andesite and diabase reservoirs were discovered in three major depressions and peripheral Mesozoic Basins.Matching exploration techniques were developed,including igneous lithologic identification,seismic reservoir prediction,litho-facies analysis and prediction and reservoir logging evaluation.The reservoirs developed mainly Mesozoic and Paleogene Es3.The reservoir scales were generally small except for trachyte reservoir,and present following characteristics: igneous rocks associated with source rock were more likely to form hydrocarbon reservoirs;the physical property of igneous rock was less affected by burial depth,but it was seriously influenced by to later tectonic reconstruction;hydrocarbon accumulation was controlled by integral factors such as reservoir space,lithology,development horizon and structural location.In addition,a series of technical problems still exist in exploration,including the research of seismic data,rock fracture prediction and research on igneous reservoir forming mechanism.
Through many years of exploration in Liaohe Oilfield,various types of igneous reservoirs including trachyte,andesite and diabase reservoirs were discovered in three major depressions and peripheral Mesozoic Basins.Matching exploration techniques were developed,including igneous lithologic identification,seismic reservoir prediction,litho-facies analysis and prediction and reservoir logging evaluation.The reservoirs developed mainly Mesozoic and Paleogene Es3.The reservoir scales were generally small except for trachyte reservoir,and present following characteristics: igneous rocks associated with source rock were more likely to form hydrocarbon reservoirs;the physical property of igneous rock was less affected by burial depth,but it was seriously influenced by to later tectonic reconstruction;hydrocarbon accumulation was controlled by integral factors such as reservoir space,lithology,development horizon and structural location.In addition,a series of technical problems still exist in exploration,including the research of seismic data,rock fracture prediction and research on igneous reservoir forming mechanism.
引文
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[2]孙红军,陈振岩,蔡国钢.辽河断陷盆地火成岩油气藏勘探现状与展望[J].地球化学,2003,10(1):l～11.
[3]方炳钟,杨光达.辽河油田东部凹陷火成岩分布及油气成藏组合[J].石油天然气学报,2010,32(5):69～72.
[4]郭克园,蔡国钢,罗海炳,等.辽河盆地欧利坨子地区火山岩储层特征及成藏条件[J].天然气地球科学,2002,13(3～4):60～66.
[5]陈振岩,仇劲涛,王璞珺,等.主成盆期火成岩与油气成藏关系探讨[J].沉积学报,2011,29(4):798～809.
[6]吴昌志,顾连兴,任作伟,等.辽河油田两个斑岩侵入体裂缝特征对比研究[J].吉林大学学报(地球科学版),2004,8(1):56～59.
[7]邱隆伟,姜在兴,席庆福.欧利坨子地区沙三下亚段火山岩成岩作用及孔隙演化[J].石油与天然气地质,2000,21(2):139～141.
[8]张映红,朱筱敏,吴小洲,等.侵入岩及其外变质带岩相与储集层模型[J].石油勘探与开发,2000,27(2):22～26.
[9]罗静兰,邵红梅,张成立.火山岩油气藏研究方法与勘探技术综述[J].石油学报,2003,24(1):31～37.
[10]高知云.黄骅坳陷中新生代火山岩特征、成因及其与盆地构造演化的关系[A].全国火成岩油气藏学术会议论文集[C].旅顺,1987-10-23～27.
[11]蔡国钢.辽河裂谷东部凹陷粗面岩成因机理探讨[J].地球学报,2010,31(2):245～250.
[12]崔晓娟.欧利坨子地区火山岩储层测井评价[J].断块油气田,2008,15(4):53～55.
[13]高磊,王永刚,张科,等.根据地震属性预测乌夏断裂带深层火山岩储集层[J].新疆石油地质,2007,28(4):416～418.
[14]李军,吴昌志,王震宇,等.辽河坳陷青龙台辉绿岩的Ar-Ar年代学和地球化学特征——对华北东部岩石圈减薄作用完成时间的限制[J].地质通报,2010,29(6):842～850.
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