塔河碳酸盐岩油藏岩溶古地貌研究
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摘要
塔河油田奥陶系油藏属于多期构造和岩溶作用形成岩溶型碳酸盐岩油藏,缝洞系统受控于岩溶作用,岩溶作用强烈程度明显受控于古地貌形态。利用层序地层学理论的层序界面等时性研究古地貌,提出利用两个等时界面进行岩溶古地貌恢复。但仅仅利用钻井恢复的古地貌结果是不够的,同时针对目前塔河油田埋藏深、井点数据较少,不足以反映岩溶古地貌的细节,提出了地震和钻井资料相结合,采用ESE方法(又称误差模拟)研究思路再现古地貌。通过层序地层学和ESE方法建立了塔河油田海西运动早期古地貌模型。划分出岩溶高地、岩溶斜坡等,进而预测次生孔隙发育区块。
The Ordovician reservoir in Tahe oilfield is a karst-type carbonate reservoir formed by multi-stage tectonics and karstification.Its crack-cavity system is controlled by the karstification which is restricted by the palaeogeomorphology.Because Tahe oilfield is of deep-buried feature and few well data,it is insufficient to describe the karst palaeogeomorphology of it in detail.This paper adopts error simulation method combined with the seismic and the drilling data to reconstruct it and develop the karst palaeogeomorphology model of early Hercynian orogeny in Tahe oilfield,based on two isochronal boundaries and studies in sequence stratigraphy.Finally,the karst highland and the karst slope are recognized,and the secondary pores-developed blocks are predicted.
The Ordovician reservoir in Tahe oilfield is a karst-type carbonate reservoir formed by multi-stage tectonics and karstification.Its crack-cavity system is controlled by the karstification which is restricted by the palaeogeomorphology.Because Tahe oilfield is of deep-buried feature and few well data,it is insufficient to describe the karst palaeogeomorphology of it in detail.This paper adopts error simulation method combined with the seismic and the drilling data to reconstruct it and develop the karst palaeogeomorphology model of early Hercynian orogeny in Tahe oilfield,based on two isochronal boundaries and studies in sequence stratigraphy.Finally,the karst highland and the karst slope are recognized,and the secondary pores-developed blocks are predicted.
引文
[1]康志宏.塔里木原型盆地分析[A].见:康玉柱.中国塔里木盆地石油地质文集[C].北京:地质出版社,1996.
[2]宋国齐,徐春华,樊庆真,等.利用层序地层学方法恢复加里东期古地貌——以济阳坳陷沾化地区为例[J].石油实验地质,2002,22(4):350-353.
[3]Van Wagoner J C.Reservoir facies distribution as controlledbysea-level change[J].SocietyofEconomic Paleontologistsand Mineralologists,1985:91-92.
[4]威尔格斯C K.层序地层学原理(海平面变化综合分析)[M].徐怀大,魏魁生,宏卫东,等译.北京:石油工业出版社,1993:49-56.
[5]康玉柱.中国塔里木盆地石油地质特征及资料评价[M].北京:地质出版社,1996:65-92.
[6]Srivastava R M.储层表征中随机模拟方法的回顾[A].Yarus J M,Chambers R L.随机建模和地质统计学:原理、方法和实例研究[C].穆龙新,陈亮,等译.北京:石油工业出版社,2000:1-7.
[2]宋国齐,徐春华,樊庆真,等.利用层序地层学方法恢复加里东期古地貌——以济阳坳陷沾化地区为例[J].石油实验地质,2002,22(4):350-353.
[3]Van Wagoner J C.Reservoir facies distribution as controlledbysea-level change[J].SocietyofEconomic Paleontologistsand Mineralologists,1985:91-92.
[4]威尔格斯C K.层序地层学原理(海平面变化综合分析)[M].徐怀大,魏魁生,宏卫东,等译.北京:石油工业出版社,1993:49-56.
[5]康玉柱.中国塔里木盆地石油地质特征及资料评价[M].北京:地质出版社,1996:65-92.
[6]Srivastava R M.储层表征中随机模拟方法的回顾[A].Yarus J M,Chambers R L.随机建模和地质统计学:原理、方法和实例研究[C].穆龙新,陈亮,等译.北京:石油工业出版社,2000:1-7.
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