印尼打拉根盆地油气成藏特征与主控因素
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摘要
打拉根盆地是印度尼西亚重要的含油气盆地,油气资源丰富。盆地自陆向海划分为陆上反转构造带、陆架区伸展断裂带和深水区逆冲褶皱带,各区带油气成藏与分布特征存在差异。认为盆地油气成藏属烃源岩和输导体系联合控藏。烃源岩控制油气分布格局,中新统煤系为盆地主力烃源岩,生烃中心主体位于陆架区中部,油气主要富集在生烃中心附近的有利构造中。输导体系是不同区带油气成藏的主要控制因素,断裂和构造砂脊是陆上反转构造带油气运移的优势通道,油气主要富集在上新统与上中新统构造砂脊上的反转背斜中;生长断裂是陆架区伸展断裂带油气运移的优势通道,油气主要富集在上新统与上中新统断裂所夹持的断块上;逆冲断裂是深水区油气运移的优势通道,油气主要富集在上新统逆冲背斜中。指出陆架区伸展断裂带勘探潜力最大,深水区逆冲褶皱带勘探潜力次之,陆上反转构造带具有一定勘探潜力。
Tarakan Basin, as an important basin in Indonesia with abundant oil and gas resource, is divided into three zones from land to sea, namely inversion structure belt on land, extensive fault belt on continental shelf, and thrust belt in deep water, with respective features of hydrocarbon accumulation and distribution. It is concluded that hydrocarbon accumulation is controlled by both source rock and conduit system in Tarakan Basin. Oil and gas are mainly concentrated in favorable structures near the center of hydrocarbon generation in the shelf zone, where the Miocene coal strata is the major source rock. The conduit system is the main controlling factor for hydrocarbon accumulation in different zones. Fractures and structural sand ridges are the dominant pathway for hydrocarbon migration in the inversion structure belt, and hydrocarbons are mainly concentrated in the Pliocene and Upper Miocene structural sand ridges. The growth fault is the dominant pathway for oil and gas migration in the extended fault zone on the continental shelf, and oil and gas are mainly concentrated in the Pliocene and Upper Miocene fault blocks. Thrust faults are the dominant pathway in the thrust zone in deep water, and hydrocarbons are mainly enriched in the Pliocene thrust anticline. According to the order of exploration potential, the extensive fault belt on the continental shelf is the largest,followed by the thrust-fold belt in deep water, and the inversion structure belt on land again.
Tarakan Basin, as an important basin in Indonesia with abundant oil and gas resource, is divided into three zones from land to sea, namely inversion structure belt on land, extensive fault belt on continental shelf, and thrust belt in deep water, with respective features of hydrocarbon accumulation and distribution. It is concluded that hydrocarbon accumulation is controlled by both source rock and conduit system in Tarakan Basin. Oil and gas are mainly concentrated in favorable structures near the center of hydrocarbon generation in the shelf zone, where the Miocene coal strata is the major source rock. The conduit system is the main controlling factor for hydrocarbon accumulation in different zones. Fractures and structural sand ridges are the dominant pathway for hydrocarbon migration in the inversion structure belt, and hydrocarbons are mainly concentrated in the Pliocene and Upper Miocene structural sand ridges. The growth fault is the dominant pathway for oil and gas migration in the extended fault zone on the continental shelf, and oil and gas are mainly concentrated in the Pliocene and Upper Miocene fault blocks. Thrust faults are the dominant pathway in the thrust zone in deep water, and hydrocarbons are mainly enriched in the Pliocene thrust anticline. According to the order of exploration potential, the extensive fault belt on the continental shelf is the largest,followed by the thrust-fold belt in deep water, and the inversion structure belt on land again.
引文
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[14]刘华,蒋有录,徐昊清,等.冀中坳陷新近系油气成藏机理与成藏模式[J].石油学报,2011,32(6):928-935.
[15]李才,尤丽,朱继田,等.琼东南盆地深水区中央坳陷断裂体系及其对油气成藏的控制[J].海相油气地质,2016,21(1):73-78.
[16]王玉柱,杨克绳.从地震看重力侧向滑动构造与油气---兼论马西逆同生断层不是反转构造[J].海相油气地质,2009,14(1):26-32.
[17]马杏垣,索书田.论滑覆及岩石圈内多层次滑脱构造[J].地质学报,1984,58(3):205-213.
[18]李涛,胡望水,于水,等.西非被动大陆边缘重力滑脱构造体系下的塑性构造[J].海洋地质与第四纪地质,2012,137(3):69-76.
[2]Satyanaa A H,Nugrohoa D,Surantokoa I.Tectonic controls on the hydrocarbon habitats of the Barito,Kutei,and Tarakan Basins,Eastern Kalimantan,Indonesia:Major dissimilarities in adjoining basins[J].Journal of Asian Earth Sciences,1999,17(1/2):99-122.
[3]Wight A W R,Hare L H,Reynolds J R.Tarakan Basin,NEKalimantan,Indonesia:A century of exploration and future potential[J].Geological Society of Malaysia,Bulletin 33,1993:263-288.
[4]Akuanbatin H,Rosandi T,Samuel L.Depositional environment of the hydrocarbon-bearing Tabul,Santul and Tarakan Formations at Banyu island,NE Kalimantan[C]//Indonesian Petroleum Association.13th Annual Convention Proceedings(Volume 1),1984:425-442.
[5]Biantoro E,Kusuma M I,Rotinsulu L F.Tarakan Sub-basin growth faults,NE Kalimantan:Their roles in hydrocarbon entrapment[C]//Indonesian Petroleum Association.25th Annual Convention Proceedings(Volume 1),1996:175-189.
[6]石洪宇.打拉根盆地石油地质条件和成藏规律分析[D].北京:中国地质大学(北京),2013.
[7]李冬,胡孝林,郭刚,等.印尼加里曼丹岛东部主要含油气盆地油气富集差异[J].海洋地质与第四纪地质,2016,36(4):129-134.
[8]邓运华.试论中国南海两个盆地带油气地质差异性[J].中国海上油气,2016,28(6):1-8.
[9]张功成.源热共控论[J].石油学报,2012,33(5):723-737.
[10]赵文智,邹才能,汪泽成,等.富油气凹陷“满凹含油”论---内涵与意义[J].石油勘探与开发,2004,31(2):5-13.
[11]张善文,王永诗,石砥石,等.网毯式油气成藏体系---以济阳坳陷新近系为例[J].石油勘探与开发,2003,30(1):1-9.
[12]邓运华.裂谷盆地油气运移“中转站”模式的实践效果---以渤海油区第三系为例[J].石油学报,2012,33(1):18-24.
[13]胡孝林,刘琼,范洪耀,等.北非阿尔及利亚叠合盆地油气成藏特征及主控因素分析[J].中国海上油气,2013,25(6):36-42.
[14]刘华,蒋有录,徐昊清,等.冀中坳陷新近系油气成藏机理与成藏模式[J].石油学报,2011,32(6):928-935.
[15]李才,尤丽,朱继田,等.琼东南盆地深水区中央坳陷断裂体系及其对油气成藏的控制[J].海相油气地质,2016,21(1):73-78.
[16]王玉柱,杨克绳.从地震看重力侧向滑动构造与油气---兼论马西逆同生断层不是反转构造[J].海相油气地质,2009,14(1):26-32.
[17]马杏垣,索书田.论滑覆及岩石圈内多层次滑脱构造[J].地质学报,1984,58(3):205-213.
[18]李涛,胡望水,于水,等.西非被动大陆边缘重力滑脱构造体系下的塑性构造[J].海洋地质与第四纪地质,2012,137(3):69-76.