柴达木盆地德令哈断陷石油地质特征及勘探前景
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摘要
柴达木盆地北缘块断带德令哈断陷是一个勘探程度很低的地区。通过野外露头石油地质考察,结合目前钻井、地震资料综合研究认为,区内广泛发育中生界侏罗系和古生界石炭系泥岩、碳酸盐岩和煤系烃源岩,奥陶系泥岩和碳酸盐岩也是较好—好烃源岩;储层发育,中新生界油气储层都为砂岩。德令哈断陷为两凹夹一隆的构造格局,区内构造发育,圈闭类型多样,数量多,面积大,埋藏深度多小于4 000 m,有利于钻探。预测油气总资源量在10×108t以上,是油气勘探的有利地区,有良好的勘探前景。
The Delingha Fault-depression in the north margin of the Qaidam Basin is a frontier of petroleum exploration.Combining the field petroleum geologic review on the outcrops with the well and seismic information,the mudstone,carbonate rock and coal-measure hydrocarbon source rocks in the Mesozoic Jurassic and Paleozoic Carboniferous are considered widely developing in the Delingha Fault-Depression.The mudstone and carbonate rock in the Ordovician are also good hydrocarbon source rocks.The sandstone reservoirs developed in both the Mesozoic and the Cenozoic.The Delingha Fault-Depression is of two segs mingle with one uplift in structural framework.In the Delingha Fault-Depression,the tectonics developed and the traps are characterized by various types,large quantities and area as well as burial depth less than 4 000 meters.These are favorable for drilling.The total forecasting oil/gas reserve in this area is above 10 million tons.It is a favorable area for oil and gas exploration,and has well exploration prospect.
The Delingha Fault-depression in the north margin of the Qaidam Basin is a frontier of petroleum exploration.Combining the field petroleum geologic review on the outcrops with the well and seismic information,the mudstone,carbonate rock and coal-measure hydrocarbon source rocks in the Mesozoic Jurassic and Paleozoic Carboniferous are considered widely developing in the Delingha Fault-Depression.The mudstone and carbonate rock in the Ordovician are also good hydrocarbon source rocks.The sandstone reservoirs developed in both the Mesozoic and the Cenozoic.The Delingha Fault-Depression is of two segs mingle with one uplift in structural framework.In the Delingha Fault-Depression,the tectonics developed and the traps are characterized by various types,large quantities and area as well as burial depth less than 4 000 meters.These are favorable for drilling.The total forecasting oil/gas reserve in this area is above 10 million tons.It is a favorable area for oil and gas exploration,and has well exploration prospect.
引文
1汤锡元,罗铸金.柴达木盆地北缘块断带的石油地质特征[J].石油与天然气地质,1986,7(2):183~191
2王明儒,胡文义.柴达木盆地北缘侏罗系油气前景[J].石油勘探与开发,1997,24(5):20~24
3胡受权,曹运江.柴达木盆地侏罗纪盆地原型及其形成与演化探讨[J].石油实验地质,1999,21(3):189~195
4汤良杰,金之钧,张明利等.柴达木盆地北缘构造演化与油气成藏阶段[J].石油勘探与开发,2000,27(2):36~39
5薛光华,杨永泰.柴达木盆地北缘油气分布规律研究[J].石油实验地质,2002,24(2):141~146
6郑孟林,李明杰,曹春潮等.柴达木北缘西段侏罗纪盆地构造特征及其演化[J].石油实验地质,2004,26(4):315~318
7左国朝,刘义科,李相博.蒙甘青宁地区侏罗系开合盆山构造格局及原型盆地沉积特征[J].地质通报,2004,23(3):261~271
8谢庆宾,管守锐.从岩相古地理看柴达木盆地侏罗系的油气前景[J].古地理学报,2003,5(4):475~483
9王永卓,徐景祯.柴北缘中、下侏罗统生、排烃史模拟[J].石油勘探与开发,2003,30(1):49~53
10翟光明,顾树松,徐旺等.中国石油地质志—青藏油气区[M].北京:石油工业出版社,1990.38~71
11文志刚,王正允,何幼斌等.柴北缘下奥陶统烃源岩有机地球化学特征[J].天然气工业,2004,24(4):7~9
12谢庆宾,管守锐.柴达木盆地北缘侏罗系沉积类型及储集层评价[J].石油勘探与开发,2000,27(2):40~44
2王明儒,胡文义.柴达木盆地北缘侏罗系油气前景[J].石油勘探与开发,1997,24(5):20~24
3胡受权,曹运江.柴达木盆地侏罗纪盆地原型及其形成与演化探讨[J].石油实验地质,1999,21(3):189~195
4汤良杰,金之钧,张明利等.柴达木盆地北缘构造演化与油气成藏阶段[J].石油勘探与开发,2000,27(2):36~39
5薛光华,杨永泰.柴达木盆地北缘油气分布规律研究[J].石油实验地质,2002,24(2):141~146
6郑孟林,李明杰,曹春潮等.柴达木北缘西段侏罗纪盆地构造特征及其演化[J].石油实验地质,2004,26(4):315~318
7左国朝,刘义科,李相博.蒙甘青宁地区侏罗系开合盆山构造格局及原型盆地沉积特征[J].地质通报,2004,23(3):261~271
8谢庆宾,管守锐.从岩相古地理看柴达木盆地侏罗系的油气前景[J].古地理学报,2003,5(4):475~483
9王永卓,徐景祯.柴北缘中、下侏罗统生、排烃史模拟[J].石油勘探与开发,2003,30(1):49~53
10翟光明,顾树松,徐旺等.中国石油地质志—青藏油气区[M].北京:石油工业出版社,1990.38~71
11文志刚,王正允,何幼斌等.柴北缘下奥陶统烃源岩有机地球化学特征[J].天然气工业,2004,24(4):7~9
12谢庆宾,管守锐.柴达木盆地北缘侏罗系沉积类型及储集层评价[J].石油勘探与开发,2000,27(2):40~44
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