柴达木盆地昆北断阶带圈闭特征
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摘要
昆北断阶带位于柴达木盆地西部南缘昆仑山前,勘探程度较低,油气成藏较为复杂。通过圈闭类型、圈闭控制因素和断裂展布研究,深入探索研究区主要勘探目标及油气聚集规律。应用构造解释与综合地质研究成果,指出昆北断阶带现阶段勘探的主要圈闭类型为构造型圈闭,以断鼻、断背斜、断块为主,其平面分布主要受断裂发育与构造变形程度等因素控制,与断裂体系有明显的依存关系且大多为断裂分割而完整性较差,沿断裂走向具有成排、成带分布的特点;圈闭主要形成于中新世与上新世,主要定型于上新世;各构造部位圈闭含油气性差异大。研究结果对昆北断阶带下一步勘探具有一定的指导意义。
The north Kunlun faults zone lies in the southern edge of the western Qaidam Basin.It has a lower degree of exploration and complicated hydrocarbon accumulation.In order to make a deep probation of the major exploration targets and hydrocarbon accumulation law,the authors make a research on the types and controlling factors of traps in this area.The major types of trap are structural traps including the faulted-nose,faulted-anticline and faulted-block.The horizontal distributions are mainly subject to the development of fractures and degrees of tectonic deformation.It has an obvious dependent relation with faults system,and most of them are fault dissections which have a less completeness.They are featured by the linear and zonal distribution.What's more,most traps are formed in Miocene and Pliocene epoch and there is a big difference among tectonic positions in hydrocarbon-bearing.Thus,the conclusions will be helpful to the next hydrocarbon exploration in this area.
The north Kunlun faults zone lies in the southern edge of the western Qaidam Basin.It has a lower degree of exploration and complicated hydrocarbon accumulation.In order to make a deep probation of the major exploration targets and hydrocarbon accumulation law,the authors make a research on the types and controlling factors of traps in this area.The major types of trap are structural traps including the faulted-nose,faulted-anticline and faulted-block.The horizontal distributions are mainly subject to the development of fractures and degrees of tectonic deformation.It has an obvious dependent relation with faults system,and most of them are fault dissections which have a less completeness.They are featured by the linear and zonal distribution.What's more,most traps are formed in Miocene and Pliocene epoch and there is a big difference among tectonic positions in hydrocarbon-bearing.Thus,the conclusions will be helpful to the next hydrocarbon exploration in this area.
引文
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[13]方向,江波,张永庶.柴达木盆地西部地区断裂构造与油气聚集[J].石油与天然气地质,2006,27(1):56-61.
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[15]余一欣,汤良杰,马达德,等.柴达木盆地断裂特征研究[J].西安石油大学学报:自然科学版,2005,20(3):11-14.
[16]党玉琪,熊继辉,刘震.柴达木盆地油气成藏的主控因素[J].石油与天然气地质,2004,25(6):614-619.
[17]戴俊生,曹代勇.柴达木盆地新生代构造样式的演化特点[J].地质评论,2000,46(5):455-460.
[18]胡朝元.“源控论”适用范围量化分析[J].天然气工业,2005,25(10):1-5.
[2]党玉琪,尹成明,赵东升.柴达木盆地西部地区古近纪与新近纪沉积相[J].古地理学报,2004,6(3):297-306.
[3]付锁堂.柴达木盆地西部油气成藏主控因素与有利勘探方向[J].沉积学报,2010,28(2):373-376.
[4]江波,司丹,王兰生,等.柴西南地区油气成藏特征及有利储层预测[J].天然气工业,2004,24(9):8-10.
[5]徐凤银,彭德华,侯恩科.柴达木盆地油气聚集规律及勘探前景[J].石油学报,2003,24(4):1-6.
[6]徐文世,李胜利,于兴河,等.北黄海盆地Ⅰ号坳陷圈闭特征[J].天然气地球科学,2006,17(1):106-108.
[7]徐宏节,吴亚军.雅克拉断凸及周缘地区的复合圈闭特征[J].天然气工业,2004,24(3):26-28.
[8]戴俊生.柴达木盆地构造样式控油作用分析[J].石油实验地质,2000,22(2):121-124.
[9]官大勇,胡望水,张文军,等.柴西地区逆断裂类型及其与油气运聚的关系[J].新疆石油地质,2004,25(6):621-623.
[10]郭秋麟,米云石.油气勘探目标评价与决策分析[M].北京:石油工业出版社,2004:97-140.
[11]刘全稳,陈景山,王允诚.油气圈闭评价与管理系统[M].北京:石油工业出版社,2000:1-46.
[12]余一欣,汤良杰,马达德,等.柴达木盆地构造圈闭特征与含油气性[J].西安石油大学学报:自然科学版,2006,21(5):1-5.
[13]方向,江波,张永庶.柴达木盆地西部地区断裂构造与油气聚集[J].石油与天然气地质,2006,27(1):56-61.
[14]李玉喜,庞雄奇,汤良杰,等.柴西地区近南北向构造系统及其控油作用分析[J].石油勘探与开发,2002,29(1):65-68.
[15]余一欣,汤良杰,马达德,等.柴达木盆地断裂特征研究[J].西安石油大学学报:自然科学版,2005,20(3):11-14.
[16]党玉琪,熊继辉,刘震.柴达木盆地油气成藏的主控因素[J].石油与天然气地质,2004,25(6):614-619.
[17]戴俊生,曹代勇.柴达木盆地新生代构造样式的演化特点[J].地质评论,2000,46(5):455-460.
[18]胡朝元.“源控论”适用范围量化分析[J].天然气工业,2005,25(10):1-5.
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