准噶尔盆地西北缘二叠系风城组储层发育特征及油气富集因素
|
摘要
为了明确准噶尔盆地西北缘二叠系风城组储层的发育特征,分析控制油气富集的主要因素,指导下步勘探开发,通过钻井、岩心、薄片和扫描电镜等资料的观察与分析,对储层的岩石类型、储集空间、物性特征及其对油气富集的控制作用进行了研究。研究表明:研究区内二叠系风城组储层类型主要包括碎屑岩、云质岩和火山岩,储集空间主要为原生孔隙、溶孔和裂缝;碎屑岩储层整体为低—中孔隙度,平均值为7. 32%,粒内溶孔是其主要储集空间类型;云质岩储层孔隙度平均值为4. 62%,溶孔和裂缝是其主要储集空间类型;火山岩储层孔隙度平均值为2. 60%,溶孔和裂缝是其主要储集空间类型;优质储层控制了油气富集成藏,物性较好的储层含油性好。在此基础上,讨论了沉积作用、成岩作用以及构造作用对优质储层的控制作用,并预测了不同类型优质储层的空间展布。该研究对准噶尔盆地西北缘二叠系风城组储层下步勘探部署有较强指导意义。
In order to clarify the reservoir development features,main-controlling factors of hydrocarbon enrichment and the guidance for further exploration and development of the Permian Fengcheng Formation in the northwestern margin of Junggar Basin,the reservoir rock classification,reservoir space,physical properties and their effects on hydrocarbon enrichment are researched based on the drilling,core test,thin-section analysis,scanning electron microscopy and other data. Research indicates that the reservoir of Permian Fengcheng Formation can be classified as clastic,cloud and volcanic rocks,and the reservoir space mainly consists of primary pore,dissolved pore and fracture. The clastic reservoir generally possesses low-medium porosity with an average of 7. 32%,and the intragranular dissolved pore dominates the reservoir space. The average porosity of cloud-rock reservoir is 4. 62%,and the pore and fracture dominate the reservoir space. The average porosity of volcanic reservoir is 2. 60%,and the pore and fracture dominate the reservoir space. Hydrocarbon enrichment and accumulation are dependent on the high-quality reservoir,which shows a high oil-nearing properties. Based on this understanding,the effects of sedimentation,diagenesis and tectonic action on high-quality reservoir are discussed,and the spatial distribution of different high-quality reservoirs is predicted. This research could provide certain guidance for the further hydrocarbon reservoir exploration and deployment of the Lower Permian Fengcheng Formation in the northwestern margin of Junggar Basin.
In order to clarify the reservoir development features,main-controlling factors of hydrocarbon enrichment and the guidance for further exploration and development of the Permian Fengcheng Formation in the northwestern margin of Junggar Basin,the reservoir rock classification,reservoir space,physical properties and their effects on hydrocarbon enrichment are researched based on the drilling,core test,thin-section analysis,scanning electron microscopy and other data. Research indicates that the reservoir of Permian Fengcheng Formation can be classified as clastic,cloud and volcanic rocks,and the reservoir space mainly consists of primary pore,dissolved pore and fracture. The clastic reservoir generally possesses low-medium porosity with an average of 7. 32%,and the intragranular dissolved pore dominates the reservoir space. The average porosity of cloud-rock reservoir is 4. 62%,and the pore and fracture dominate the reservoir space. The average porosity of volcanic reservoir is 2. 60%,and the pore and fracture dominate the reservoir space. Hydrocarbon enrichment and accumulation are dependent on the high-quality reservoir,which shows a high oil-nearing properties. Based on this understanding,the effects of sedimentation,diagenesis and tectonic action on high-quality reservoir are discussed,and the spatial distribution of different high-quality reservoirs is predicted. This research could provide certain guidance for the further hydrocarbon reservoir exploration and deployment of the Lower Permian Fengcheng Formation in the northwestern margin of Junggar Basin.
引文
[1]吴孔友.准噶尔盆地乌夏地区油气输导体系与成藏模式[J].西南石油大学学报(自然科学版),2009,31(5):25-30.
[2]杨勇,查明.准噶尔盆地乌尔禾—夏子街地区不整合发育特征及其在油气成藏中的作用[J].石油勘探与开发,2007,34(3):304-309.
[3]张善文.准噶尔盆地哈拉阿拉特山地区风城组烃源岩的发现及石油地质意义[J].石油与天然气地质,2013,34(2):145-152.
[4]尤兴第.准噶尔盆地西北缘风城组沉积相探讨[J].新疆石油地质,1986,7(1):47-52.
[5]刘文斌.准噶尔盆地西北缘风城组沉积环境探讨[J].沉积学报,1989,7(2):61-70.
[6]鄢继华,崔永北,陈世悦,等.准噶尔盆地乌夏地区二叠系沉积特征及有利储集层[J].新疆石油地质,2009,30(3):304-306.
[7]张义杰.准噶尔盆地晚石炭世和二叠纪沉积环境[J].新疆石油地质,2007,28(6):673-675.
[8]冯建伟,戴俊生,鄢继华,等.准噶尔盆地乌夏前陆冲断带构造活动—沉积响应[J].沉积学报,2009,27(3):494-502.
[9]冯建伟,戴俊生,葛盛权.准噶尔盆地乌夏断裂带构造演化及油气聚集[J].中国石油大学学报,2008,32(3):23-29.
[10]蔚远江,何等发,雷振宇,等.准噶尔盆地西北缘前陆冲断带二叠纪逆冲断裂活动的沉积响应[J].地质学报,2004,78(5):612-624.
[11]李学良,林会喜,张奎华,等.哈山山前带构造特征及对下步勘探的启示[J].特种油气藏,2018,25(1):21-24.
[12]李学良,石好果,宋传春,等.准噶尔盆地南缘阿什里地区构造特征及有利勘探方向[J].新疆石油地质,2012,33(3):280-282.
[13]李学良.复杂山前带构造建模技术探讨———以准南阿什里地区为例[J].断块油气田,2014,21(5):585-589.
[14]隋风贵.准噶尔盆地西北缘中国石化探区勘探突破实践[J].新疆石油地质,2013,34(2):129-132.
[15]朱世发,朱筱敏,陶文芳,等.准噶尔盆地乌夏地区二叠系风城组云质岩类成因研究[J].高校地质学报,2013,19(1):38-45.
[16]蒋宜勤,文华国,祁利祺,等.准噶尔盆地乌尔禾地区二叠系风城组盐类矿物和成因分析[J].矿物岩石,2012,32(2):105-114.
[17]史基安.塔里木盆地西北缘震旦系和古生代白云岩成因及其储集性[J].沉积学报,1993,11(2):43-50.
[18]朱井泉,李永铁.藏北羌塘盆地侏罗系白云岩类型、成因及油气储集特征[J].古地理学报,2000,2(4):30-43.
[19]邵龙义,何宏,彭苏萍,等.塔里木盆地巴楚隆起寒武系及奥陶系白云岩类型及形成机理[J].古地理学报,2002,4(2):19-30.
[20]郑荣才,耿威,郑超,等.川东北地区飞仙关组优质白云岩储层的成因[J].石油学报,2005,26(5):38-41.
[21]丁安娜,惠荣耀,王屿涛.准噶尔盆地西北缘石炭、二叠系烃源岩有机岩石学特征[J].新疆石油地质,1994,15(3):220-225.
[22]赵白.石炭、二叠系是准噶尔盆地的主要油源岩[J].新疆石油地质,1994,15(1):10-15.
[23]操应长,王健,刘惠民,等.东营凹陷南坡沙四上亚段滩坝砂体的沉积特征及模式[J].中国石油大学学报(自然科学版),2009,33(6):5-10.
[24]司学强,张金亮,杨子成.博兴洼陷沙四上亚段滩坝砂岩成岩作用及其与储层质量的关系[J].中国石油大学学报(自然科学版),2008,32(2):6-11.
[25]李学良,林会喜,石好果,等.车排子地区石炭系火山岩储层发育特征及控制因素[J].西安石油大学(自然科学版),2017,32(6):1-9.
[2]杨勇,查明.准噶尔盆地乌尔禾—夏子街地区不整合发育特征及其在油气成藏中的作用[J].石油勘探与开发,2007,34(3):304-309.
[3]张善文.准噶尔盆地哈拉阿拉特山地区风城组烃源岩的发现及石油地质意义[J].石油与天然气地质,2013,34(2):145-152.
[4]尤兴第.准噶尔盆地西北缘风城组沉积相探讨[J].新疆石油地质,1986,7(1):47-52.
[5]刘文斌.准噶尔盆地西北缘风城组沉积环境探讨[J].沉积学报,1989,7(2):61-70.
[6]鄢继华,崔永北,陈世悦,等.准噶尔盆地乌夏地区二叠系沉积特征及有利储集层[J].新疆石油地质,2009,30(3):304-306.
[7]张义杰.准噶尔盆地晚石炭世和二叠纪沉积环境[J].新疆石油地质,2007,28(6):673-675.
[8]冯建伟,戴俊生,鄢继华,等.准噶尔盆地乌夏前陆冲断带构造活动—沉积响应[J].沉积学报,2009,27(3):494-502.
[9]冯建伟,戴俊生,葛盛权.准噶尔盆地乌夏断裂带构造演化及油气聚集[J].中国石油大学学报,2008,32(3):23-29.
[10]蔚远江,何等发,雷振宇,等.准噶尔盆地西北缘前陆冲断带二叠纪逆冲断裂活动的沉积响应[J].地质学报,2004,78(5):612-624.
[11]李学良,林会喜,张奎华,等.哈山山前带构造特征及对下步勘探的启示[J].特种油气藏,2018,25(1):21-24.
[12]李学良,石好果,宋传春,等.准噶尔盆地南缘阿什里地区构造特征及有利勘探方向[J].新疆石油地质,2012,33(3):280-282.
[13]李学良.复杂山前带构造建模技术探讨———以准南阿什里地区为例[J].断块油气田,2014,21(5):585-589.
[14]隋风贵.准噶尔盆地西北缘中国石化探区勘探突破实践[J].新疆石油地质,2013,34(2):129-132.
[15]朱世发,朱筱敏,陶文芳,等.准噶尔盆地乌夏地区二叠系风城组云质岩类成因研究[J].高校地质学报,2013,19(1):38-45.
[16]蒋宜勤,文华国,祁利祺,等.准噶尔盆地乌尔禾地区二叠系风城组盐类矿物和成因分析[J].矿物岩石,2012,32(2):105-114.
[17]史基安.塔里木盆地西北缘震旦系和古生代白云岩成因及其储集性[J].沉积学报,1993,11(2):43-50.
[18]朱井泉,李永铁.藏北羌塘盆地侏罗系白云岩类型、成因及油气储集特征[J].古地理学报,2000,2(4):30-43.
[19]邵龙义,何宏,彭苏萍,等.塔里木盆地巴楚隆起寒武系及奥陶系白云岩类型及形成机理[J].古地理学报,2002,4(2):19-30.
[20]郑荣才,耿威,郑超,等.川东北地区飞仙关组优质白云岩储层的成因[J].石油学报,2005,26(5):38-41.
[21]丁安娜,惠荣耀,王屿涛.准噶尔盆地西北缘石炭、二叠系烃源岩有机岩石学特征[J].新疆石油地质,1994,15(3):220-225.
[22]赵白.石炭、二叠系是准噶尔盆地的主要油源岩[J].新疆石油地质,1994,15(1):10-15.
[23]操应长,王健,刘惠民,等.东营凹陷南坡沙四上亚段滩坝砂体的沉积特征及模式[J].中国石油大学学报(自然科学版),2009,33(6):5-10.
[24]司学强,张金亮,杨子成.博兴洼陷沙四上亚段滩坝砂岩成岩作用及其与储层质量的关系[J].中国石油大学学报(自然科学版),2008,32(2):6-11.
[25]李学良,林会喜,石好果,等.车排子地区石炭系火山岩储层发育特征及控制因素[J].西安石油大学(自然科学版),2017,32(6):1-9.