塔里木盆地北部跃参区块走滑断裂对油气成藏的控制

《塔里木盆地北部跃参区块走滑断裂对油气成藏的控制》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、第38卷第2期石油寥劈沾届V01．38．No．22016年3月PETROLEUMGEOLOGY&EXPERIMENTMar．，2016文章编号：1001-6112f2016}02—0156—06doi：10．11781／ysydz2O16O2156塔里木盆地北部跃参区块走滑断裂对油气成藏的控制田鹏，马庆佑，吕海涛(中国石化西北油田分公司，乌鲁木齐830011)摘要：通过对跃参区块近30口单井及其生产动态的分析解剖，结合岩心观察、分析化验等资料，深入探讨了跃参区块“x”形共轭走滑断裂体系对奥陶系岩溶缝洞体形成及油气成藏的控制作用。走滑断裂带多期活动形成了大量的高角度构造裂缝，伴随后期热液

2、流体改造而发育大型缝洞型储集体。油气沿主干走滑断裂带垂向向上运移后，再沿次级走滑断裂带发生再分配．控制着该区油气性质的变化及油气充注程度。主干走滑断裂带上油气充注程度高、原油物性好、已钻井产能较好，而次级走滑断裂带上油气充注程度低、原油物性相对偏差、已钻井产能也相对偏差。此外，走滑断裂带的展布方向、断裂左右盘的相对位置、离断裂带的远近等因素对油气富集也具有重要的控制作用。研究表明，近NE向走滑断裂带的上升盘是油气最富集的部位。关键词：走滑断裂；油气富集规律；奥陶系；跃参区块；塔里木盆地中图分类号：TEl22-3文献标识码：AStrike-slipfaultsandtheircontro

3、lsonhydrocarbonreservoirsintheYuecanblockoftheNorthernTarimUplift，TarimBasinTianPeng，MaQingyou，LnHaitao(SINOPECNorthwestCompany，Urumqi，Xinjiang830011，China)Abstract：Westudiedtheproductionperformanceofabout30wellsintheYueeanblockoftheNorthernTarimUpliftintheTarimBasin，andconsideredthecontrolsofth

4、eX—shapedstrike—slipfaultsinthestudyareaontheOrdovicianfracturedandvuggysystemreservoirs，combinedwithcoresampleobservationsandtesting．Thestrike—slipfaultswereactiveduringmultiplestages，andformedalargenumberofhigh—angletectonicfractures，whichdevelopedalargefracturedandvuggysystemduringthefollowin

5、gthermalevolution．Oilandgasmigratedupwardsalongthemainstrike—slipfaults，thenredistributedalongsecondaryfaults，andfinallydeterminedthehy—drocarbonpropertiesandchargingextentinthestudyarea．Reservoirswithahighchargingdegreeandexcellentcrudeoilpropertieswerefoundinthemainstrike—slipfaults，andthewell

6、sshowedagoodproductionperformance．Onthecontrary，thesecondarystrike-slipfaultshadalowchargeandpoorcrudeoilproperties，andthewellsshowedpoorerproductionperformance．Inaddition，thedirectionofstrike—slipfaults，therelativepositionoffaultwalls，andthedistancetofaultsalsoplayedimportantrolesincontrollingh

7、ydrocarbonenrichment．ResultsshowedthathydrocarbonwasmostenrichedintheupperwalloftheNE．orientedstrike—slipfaults．Keywords：strike．slipfault；hydrocarbonenrichmentregularity；Ordovician；Yuecanblock；TarimBasin塔里木盆地北部相继发现了塔河、轮古、哈拉前