北三台凸起石炭系火山岩地震响应及分布规律
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摘要
火山岩是北三台凸起石炭系主要储集层,从下向上可划分出3个火山序列,利用合成地震记录标定技术可建立井下火山岩相与井旁地震响应特征之间的对应关系,借助三维地震资料对各个火山序列界面进行地震对比解释,然后对每个火山序列进行地震相划分,共识别出5种主要地震相。根据单井相标定关系可将地震相转换为火山岩相,从而再现了研究区石炭系火山岩相的分布特征。综合石炭系顶部遭受剥蚀程度、断裂发育、火山岩岩相分布特征、石炭系上覆盖层发育程度、井下油气显示情况和与生烃凹陷的距离等因素,确定出北三台凸起石炭系火山岩油气勘探有利区带。
Volcanic rock is the main reservoir of the Carboniferous System in Beisantai uplift area.There are three vocanic cycles through the identification of volcanic phase in the well and the classification of volcanic cycle.The correspondence relationship between vocanic phase in the well and seismic responce feature adjacent the well can be determined through composite seismogram demarcation technique.Through the seismic interpretation of volcanic cycle interfaces by using 3D seismic data and the classification of seismic phase of volcanic cycles,five main seismic phases can be identified.The seismic phase can be transformed into volcanic phase according to single well phase demarcation relationship,so that the distributary feature of carboneferous igneous rocks is reconstructed.Through the synthesis of some elements,which are the denudation degree of the upper Carboniferous system,the development of the faults,the distribution feature of the volcanic phase,the development of cap rock on Carboniferous system,the display of oil and gas in the well and the distance with hydrocarbon generation sunken,favorable area of oil and gas exploration in Carboniferous system volcanic rocks in Beisantai uplift can be confirmed.
Volcanic rock is the main reservoir of the Carboniferous System in Beisantai uplift area.There are three vocanic cycles through the identification of volcanic phase in the well and the classification of volcanic cycle.The correspondence relationship between vocanic phase in the well and seismic responce feature adjacent the well can be determined through composite seismogram demarcation technique.Through the seismic interpretation of volcanic cycle interfaces by using 3D seismic data and the classification of seismic phase of volcanic cycles,five main seismic phases can be identified.The seismic phase can be transformed into volcanic phase according to single well phase demarcation relationship,so that the distributary feature of carboneferous igneous rocks is reconstructed.Through the synthesis of some elements,which are the denudation degree of the upper Carboniferous system,the development of the faults,the distribution feature of the volcanic phase,the development of cap rock on Carboniferous system,the display of oil and gas in the well and the distance with hydrocarbon generation sunken,favorable area of oil and gas exploration in Carboniferous system volcanic rocks in Beisantai uplift can be confirmed.
引文
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[12]王拥军,李志平,冉启全,等.火山岩储层微裂缝研究[J].国外测井技术,2006,21(3):27-29.
[2]贺凯,李培俊,何贤英,等.北三台地区石炭系成藏条件及勘探方向[J].新疆石油地质,2001,22(5):421-423.
[3]郑建东,刘传平,李红娟.徐深气田深层火山岩岩性测井识别及应用[J].国外测井技术,2006,21(3):11.
[4]姚新玉,何正怀,吴建华.准噶尔盆地火山岩地震相及分布特征[J].新疆石油地质,1994,15(3):214-219.
[5]周路,王绪龙,雷德文,等.准噶尔盆地莫索湾凸起石炭系上部岩性预测[J].中国石油勘探,2006,11(1):69-79.
[6]伍菁华,黄芸,张继武,等.火山岩相地震识别方法在准噶尔盆地东部的应用[J].天然气工业,2007,27(增刊A):481-482.
[7]张殿成,何德友,尚广弟,等.松辽盆地汪家屯东火山岩储层预测[J].石油物探,2000,39(2):36-43.
[8]杨品,孟繁有,朱爱国,等.准噶尔盆地石炭系含油气系统及天然气有利勘探区带评价[J].新疆石油学院学报,2000,12(4):1-4.
[9]曲江秀,查明,田辉,等.准噶尔盆地北三台地区不整合与油气成藏[J].新疆石油地质,2003,24(5):386-388.
[10]廖健德,刘翠敏,程显胜,等.准噶尔盆地三台—北三台油田地球化学研究[J].新疆石油地质,2002,20(3):247-251.
[11]张明洁,杨品.准噶尔盆地石炭系油气藏特征及成藏条件分析[J].新疆石油学院学报,2000,12(2):8-13.
[12]王拥军,李志平,冉启全,等.火山岩储层微裂缝研究[J].国外测井技术,2006,21(3):27-29.
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