车排子地区清水河组分布特征及有利勘探区
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摘要
准噶尔盆地车排子凸起东斜坡区井下钻遇白垩系清水河组8套砂层组,各套砂层物性良好,且都具有不同程度油气显示。通过多井精细砂层联井地震地质层位标定,建立了该地区白垩系清水河组各岩性段与井旁地震响应之间的相互关系,利用三维地震资料并结合井下钻遇各砂层厚度与岩性特征,对各砂层组进行地震识别、对比与精细解释,识别出清水河组8套砂层组在车排子地区的地层超覆尖灭线,该尖灭线围绕车排子凸起呈环带状分布。利用地震分频和地震反演方法验证了清水河组砂层由东向西沿车排子凸起超覆尖灭特征。综合构造背景、沉积体系和地震属性特征,对该地区清水河组油气勘探有利区进行预测,认为北西向断裂与白垩系清水河组地层超覆尖灭线匹配良好,且三角洲比较发育区应是该地区清水河组油气勘探的重点区域。
Eight sets of sand layer in the Cretaceous Qingshuihe Formation are penetrated at the east slope areaof Chepaizi swell in Junggar Basin,each set of sand layer has good property with different degree oil-gas show.The relationship between the cretaceous Qingshuihe Formation each lithologic section and borehole-side seismicresponses of the region were established By well connection seismic-geology fine sand layer calibration of horizonof many wells. Using 3D seismic data and combining the thickness and lithologic features of each undergroundpenetrated sand layer,we carried out seismic recognition,contrast and fine explanation of each sand layer,andidentified stratigraphic overlaped pinch outlines in Qingshuihe Formation of eight sets of sand layer in Chepaiziarea,and the pinch outlines surround Chepaizi,distributing as a ring belt. Utilizing seismic frequency-divisionand inversion,the features that Qingshuihe Formation sand layer overlapped and pinched out from the east to thewest surrounding Chepaizi swell were validated. Combining the structural setting,depositional systems and seismicattribute features,predicated the favorable exploration areas of Qingshuihe Formation in the region,and concludedthat NW fault can be matched to stratigraphic overlap pinch outlines in the Cretaceous Qingshuihe Formation,andfan delta s development area should be the key area of oil and gas exploration.
Eight sets of sand layer in the Cretaceous Qingshuihe Formation are penetrated at the east slope areaof Chepaizi swell in Junggar Basin,each set of sand layer has good property with different degree oil-gas show.The relationship between the cretaceous Qingshuihe Formation each lithologic section and borehole-side seismicresponses of the region were established By well connection seismic-geology fine sand layer calibration of horizonof many wells. Using 3D seismic data and combining the thickness and lithologic features of each undergroundpenetrated sand layer,we carried out seismic recognition,contrast and fine explanation of each sand layer,andidentified stratigraphic overlaped pinch outlines in Qingshuihe Formation of eight sets of sand layer in Chepaiziarea,and the pinch outlines surround Chepaizi,distributing as a ring belt. Utilizing seismic frequency-divisionand inversion,the features that Qingshuihe Formation sand layer overlapped and pinched out from the east to thewest surrounding Chepaizi swell were validated. Combining the structural setting,depositional systems and seismicattribute features,predicated the favorable exploration areas of Qingshuihe Formation in the region,and concludedthat NW fault can be matched to stratigraphic overlap pinch outlines in the Cretaceous Qingshuihe Formation,andfan delta s development area should be the key area of oil and gas exploration.
引文
[1]何登发,陈新发,况军,等.准噶尔盆地车排子—莫索湾古隆起的形成演化与成因机制[J].地学前缘,2008,15(4):42–55.
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[6]唐勇,孔玉华,盛建红,等.准噶尔盆地腹部缓坡型岩性地层油气藏成藏控制因素分析[J].沉积学报,2009,27(3):567–572.
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[11]李涛,陆永潮,陈平,等.准噶尔盆地车排子地区下切谷的发现及其油气地质意义[J].石油实验地质,2008,30(4):363–366.
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[13]王英民,晋武弟,刘书会,等.断陷湖盆多级坡折带的成因类型、展布及其勘探意义[J].石油与天然气地质,2003,24(3):199–203.
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[15]郎晓玲,彭仕宓,康洪全,等.利用多属性体分类技术预测扇三角洲砂体[J].西南石油大学学报:自然科学版,2010,32(1):57–62.
[16]林吉祥,施泽进,凌云,等.利用基本地震属性对目标层段的沉积演化解释研究[J].成都理工大学学报:自然科学版,2007,34(2):174–179.
[17]李志军,刘全稳,邹鲁新,等.用地震属性技术识别构造岩性物性复合油气藏[J].天然气工业,2006,26(2):60–62.
[18]谭开俊,田鑫,孙东,等.准噶尔盆地西北缘断裂带油气分布特征及控制因素[J].断块油气田,2004,11(6):13–18.
[19]陶国亮,胡文瑄,张义杰,等.准噶尔盆地西北缘北西向横断裂与油气成藏[J].石油学报,2006,27(4):23–27.
[20]陈世加,冉乙钧,路俊刚,等.红车断裂带断层封闭性的地球化学研究[J].西南石油大学学报:自然科学版,2008,30(1):21–24.
[21]何琰,牟中海.准噶尔盆地不整合类型和分布规律[J].西南石油大学学报:自然科学版,2007,29(2):61–64.
[22]周路,李新豫,吾许克,等.地震属性分析技术在断层地层圈闭识别中的应用[J].天然气地球科学,2011,22(5):894–900.
[2]周路,郑金云,雷德文,等.准噶尔盆地车莫古隆起侏罗系剥蚀厚度恢复[J].古地理学报,2007,9(3):135–145
[3]何登发,周路,唐勇,等.准噶尔盆地中侏罗统西山窑组与头屯河组间不整合面特征及其油气勘探意义[J].古地理学报,2007,9(4):387–396.
[4]党玉芳,尚春,宁良,等.物探新技术在准噶尔盆地车排子地区浅层油气勘探中的应用[J].天然气工业,2007,27(增刊A):486–488.
[5]谷云飞,马明福,苏世龙,等.准噶尔盆地白垩系岩相古地理[J].石油实验地质,2003,25(4):337–347.
[6]唐勇,孔玉华,盛建红,等.准噶尔盆地腹部缓坡型岩性地层油气藏成藏控制因素分析[J].沉积学报,2009,27(3):567–572.
[7]方世虎,宋岩,贾承造,等.准噶尔盆地白垩系底砾岩与油气成藏的关系[J].天然气工业,2006,26(5):13–16.
[8]蔡刚,吕锡敏,苏明军,等.频谱分解技术在准噶尔盆地油气勘探中的应用[J].天然气工业,2006,26(4):35–37.
[9]斯春松,王海东,唐勇,等.准噶尔盆地腹部白垩系清水河组清一段高分辨率层序地层特征及岩性油气藏预测[J].东华理工学院学报,2005,28(4):329–333.
[10]刑凤存,陆永潮,刘传虎,等.车排子地区构造–古地貌特征及其控砂机制[J].石油与天然气地质,2008,29(1):78–83.
[11]李涛,陆永潮,陈平,等.准噶尔盆地车排子地区下切谷的发现及其油气地质意义[J].石油实验地质,2008,30(4):363–366.
[12]刘豪,王英民,王媛.坳陷湖盆坡折带特征及其对非构造圈闭的控制[J].石油学报,2004,14(2):30–35.
[13]王英民,晋武弟,刘书会,等.断陷湖盆多级坡折带的成因类型、展布及其勘探意义[J].石油与天然气地质,2003,24(3):199–203.
[14]唐勇,黄文华,郭晓燕,等.准噶尔盆地白垩系储集层特征[J].新疆石油地质,2003,24(5):403–406.
[15]郎晓玲,彭仕宓,康洪全,等.利用多属性体分类技术预测扇三角洲砂体[J].西南石油大学学报:自然科学版,2010,32(1):57–62.
[16]林吉祥,施泽进,凌云,等.利用基本地震属性对目标层段的沉积演化解释研究[J].成都理工大学学报:自然科学版,2007,34(2):174–179.
[17]李志军,刘全稳,邹鲁新,等.用地震属性技术识别构造岩性物性复合油气藏[J].天然气工业,2006,26(2):60–62.
[18]谭开俊,田鑫,孙东,等.准噶尔盆地西北缘断裂带油气分布特征及控制因素[J].断块油气田,2004,11(6):13–18.
[19]陶国亮,胡文瑄,张义杰,等.准噶尔盆地西北缘北西向横断裂与油气成藏[J].石油学报,2006,27(4):23–27.
[20]陈世加,冉乙钧,路俊刚,等.红车断裂带断层封闭性的地球化学研究[J].西南石油大学学报:自然科学版,2008,30(1):21–24.
[21]何琰,牟中海.准噶尔盆地不整合类型和分布规律[J].西南石油大学学报:自然科学版,2007,29(2):61–64.
[22]周路,李新豫,吾许克,等.地震属性分析技术在断层地层圈闭识别中的应用[J].天然气地球科学,2011,22(5):894–900.
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