东营凹陷纯化油田西部侵入岩裂缝系统研究
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摘要
针对东营凹陷纯化油田侵入岩裂缝发育的地质情况,利用常规地震资料、倾角测井资料和测井曲线,采用地震波相干技术、地震波属性分析技术和地层曲率法分析了火成岩裂缝的展布规律,形成了火成岩裂缝识别和追踪技术。距离断层较近或断层发育的构造顶部为裂缝最发育区,根据成因将裂缝分为早期收缩裂缝和晚期构造裂缝。通过对该区的成藏条件分析,提出了纯87-1小火成岩体内高部位和纯97小火成岩体南部2个有利钻探目标。
In view of the naturally fractured character of irruptive rocks in the Chunhua Oilfield of Dongying Depression, the techniques of seismic wave coherence, seismic-wave attribute analysis and strata curvature were applied to analyze the distribution rules of igneous rocks' fractures, and then the fractures identification and tracing technologies were developed based on the general seismic data, dipping logging data and logging curves. The structural highs with many faults or nearing faults are the most fracture-developed areas. The origin of fractures can be divided into two types; shrinkage fracture at early stage and tectoclase at late stage. By the analysis of conditions for hydrocarbon reservoir forming,the next exploratory targets are put forward at the high placement of Chun87-1 small irruptive rock and the south of Chun97 small irruptive rock.
In view of the naturally fractured character of irruptive rocks in the Chunhua Oilfield of Dongying Depression, the techniques of seismic wave coherence, seismic-wave attribute analysis and strata curvature were applied to analyze the distribution rules of igneous rocks' fractures, and then the fractures identification and tracing technologies were developed based on the general seismic data, dipping logging data and logging curves. The structural highs with many faults or nearing faults are the most fracture-developed areas. The origin of fractures can be divided into two types; shrinkage fracture at early stage and tectoclase at late stage. By the analysis of conditions for hydrocarbon reservoir forming,the next exploratory targets are put forward at the high placement of Chun87-1 small irruptive rock and the south of Chun97 small irruptive rock.
引文
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[2]操应长,邱隆伟.济阳坳陷下第三系火成岩储层的控制因素[J].石油勘探与开发,2000,27(5):44-49.
[3]黄隆基,范宜仁.火山岩测井评价的地质和地球物理基础[J].测井技术,1997,21(5):341-344.
[4]严慧中,刘学敏,蔡文涛,等.火成岩储层地震综合技术的应用[J].石油地球物理勘探,1999,34(增刊):89-95.
[5]金强.裂谷盆地火山活动与油气藏的形成[J].石油大学学报:自然科学版,2001,25(1):26-29.
[6]金强,翟庆龙,万从礼.裂谷盆地的火山活动和油气生成[J].地质科学,2003,38(3):342-349.
[7]肖敦清,王桂芝,韦阿娟,等.黄骅坳陷火成岩成藏特征研究[J].特种油气藏,2003,10(3):59-61.
[8]李湘军,毕义泉,秘美鸿,等.滨南油田火成岩油藏勘探技术[J].断块油气田,2002,9(3):5-8.
[9]王延章,林承焰.低幅度构造油藏勘探技术[J].新疆石油地质,2006,9(4):5-8.
[10]郭栋,邱隆伟,姜在兴.济阳坳陷火成岩发育特征及其与二氧化碳成藏的关系[J].油气地质与采收率,2004,11(2):21-25.
[11]杨贵丽,蒋有录,吕希学.济阳坳陷火成岩油气藏成藏特征分析[J].油气地质与采收率,2005,12(1):24-26.
[12]李春光.试论东营、惠民凹陷与火成岩相关油气藏的成因[J].特种油气藏,1997,4(3):10-14.
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