文档名：塔里木盆地先巴扎地区走滑断裂特征及石油地质意义
摘要：文中利用三维地震资料开展了麦盖提斜坡先巴扎地区断裂的精细解析,明确了走滑断裂特征、形成期次、成因机制等,结合邻区含油气地质条件,探讨了奥陶系走滑断裂的含油气性,预测油气富集模式.研究发现,研究区发育北东向、北西向、近南北向、北东东向等4组走滑断裂体系,主要经历了5期构造活动,形成了5个构造层:加里东早期发育北东向、北西向正断裂(基底构造层);加里东中晚期受西昆仑造山运动影响,部分正断裂继承活动,形成左行左阶北东向、右行左阶北西向走滑断裂(下构造层);加里东晚期—海西早期受阿尔金造山运动影响,形成1条左行左阶北东东向走滑断裂(中构造层);海西晚期北东向、北西向走滑断裂继承活动,同时新形成色力布亚逆冲断裂的近南北向伴生断裂(上构造层);喜山早期沿古近系膏泥层发育叠瓦状逆冲断裂及在喜山晚期发生整体掀斜(顶构造层).基于邻区含油气特征,认为该区沿断裂带发育加里东中期Ⅰ-Ⅲ幕岩溶缝洞型储层,与上覆志留系泥岩形成储盖组合,海西晚期来自麦盖提斜坡西北部寒武系玉尔吐斯组的远源油气沿先巴扎断裂带向走滑断裂调整聚集成藏.其中,断穿基底的奥陶系北东向张扭走滑断裂的储集性能优于其他走向断裂,含油气条件最优越,值得探索.
Abstract：Thisarticleusesthree-dimensionalseismicdatatocarryoutdetailedanalysisoffaultsintheXianbazaareaoftheMaigaitislope,clarifiesthecharacteristics,formationperiods,andgeneticmechanismsofstrike-slipfaults.Combinedwiththeoilandgasgeologicalconditionsofneighboringareas,theoil-gasbearingpropertiesofOrdovicianstrike-slipfaultsarediscussed,andoilandgasenrichmentpatternsarepredicted.Theresearchshowsthat,foursetsofstrike-slipfaultsystemsaredevelopedintheresearcharea,namelyNE,northeast,nearlyNW,andNEEtrendingsystems.Theresearchareamainlyexperiencedfiveperiodsoftectonicmovements,formingfivestructurallayers:intheearlyCaledonianperiod,NEandNWtrendingnormalfaultsweredeveloped(basementstructurallayer).DuetotheinfluenceoftheWestKunlunorogenyinthemidtolateCaledonianperiod,somenormalfaultsinheritedtheactivitiesandformedleftlateralleftenechelonNEtrendingandrightlateralleftenechelonNWtrendingstrike-slipfaults(lowerstructurallayer).DuringthelateCaledoniantoearlyHercynianperiod,aleftlateralleftenechelonNEEtrendingstrike-slipfault(middlestructurallayer)wasformedduetotheinfluenceoftheAltynorogeny.InthelateHercynianperiod,theNEandNWtrendingstrike-slipfaultsinheritedtheactivity,andatthesametime,anearlynorth-southtrendingassociatedfault(upperstructurallayer)oftheSelibuyathrustfaultwasnewlyformed.IntheearlyHimalayanperiod,therewerestacked-tile-shapedthrustfaultsdevelopingalongthePaleogenegypsummudlayers,andinthelateHimalayanperiod,theoveralltilting(topstructurallayer)occurred.Basedontheoil-gasbearingpropertiesinneighboringareas,itisbelievedthatthereareⅠ-Ⅲepisodekarstfractured-vuggyreservoirsdevelopinginthemiddleCaledonianperiodalongthefaultzone,formingareservoir-capcombinationwiththeoverlyingSilurianmudstone.InthelateHercynianperiod,far-sourceoilandgasfromtheCambrianYuertusinthenorthwestoftheMaigaitislopewereadjustedandaccumulatedalongtheXianbazhafaulttowardsthestrike-slipfault.Amongthem,theOrdovicianreservoirperformanceofthenortheasttrendingtranstensionalstrike-slipfaultthatbreaksthroughthebasementissuperiortoothertrendingfaults,anditsoilandgasconditionsarethemostfavorable,whichisworthexploring.
作者：马海陇 蒋林 姜应兵 王震 郝建龙 王明Author：MAHailong JIANGLin JIANGYingbing WANGZhen HAOJianlong WANGMing
作者单位：中国石化西北油田分公司勘探开发研究院,新疆乌鲁木齐830001;缝洞型油藏提高采收率重点实验室,新疆乌鲁木齐830001
刊名：断块油气田
Journal：Fault-BlockOilandGasField
年，卷(期)：2024, 31(2)
分类号：TE122.2
关键词：碳酸盐岩 走滑断裂 构造演化 先巴扎 塔里木盆地
Keywords：carbonaterock strike-slipfault tectonicevolution Xianbazha TarimBasin
机标分类号：TE122.2P618.13P542
在线出版日期：2024年4月15日
基金项目：中石化重大科技专项课题塔里木盆地先巴扎地区走滑断裂特征及石油地质意义[
期刊论文] 断块油气田--2024, 31(2)马海陇 蒋林 姜应兵 王震 郝建龙 王明文中利用三维地震资料开展了麦盖提斜坡先巴扎地区断裂的精细解析,明确了走滑断裂特征、形成期次、成因机制等,结合邻区含油气地质条件,探讨了奥陶系走滑断裂的含油气性,预测油气富集模式.研究发现,研究区发育北东向、北西...参考文献和引证文献
参考文献
引证文献
本文读者也读过
相似文献
相关博文
塔里木盆地先巴扎地区走滑断裂特征及石油地质意义 Characteristics of strike-slip faults in Xianbazha area of Tarim Basin and its petroleum geological significance
塔里木盆地先巴扎地区走滑断裂特征及石油地质意义.pdf
- 文件大小:
- 7.21 MB
- 下载次数:
- 60
-
高速下载
|
|
