RELATIONSHIP OF RESERVOIR FORMATION WITH UNCONFORMITIES AND THEIR GEOPHYSICAL RESPONDENCE IN THE JUNGGAR BASIN
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摘要: 准噶尔盆地自成盆期以来经历了多期次构造运动,形成数个不整合。这些不整合在剖面上可分为5种类型,它们在地震上具有明显的反射特征。在纵向上,不整合分为3层结构,每层结构发育着多种岩石类型,它们在测井曲线组合上具各自不同的响应。不整合纵向的分层结构构成油气运移的双重通道,同时为油气聚集提供良好的储集空间和圈闭条件。尽管不整合的成藏条件有共同之处,但由于形成各类不整合时的应力强度、应力作用方式及地层变形程度等存在差异,导致不同类型的不整合还具有各自不同的油气成藏模式。Abstract: Several unconformities were formed as a result of several tectonic movements in the Junggar Basin. Five types of unconformity were recognized, with different reflection characters in seismic sections for each one. Unconformity structures are vertically divided into three layers, and every layer is consisted of several kinds of rocks with different logging responses in electrofacies. These unconformities not only are the pathways for oil and gas migration, but also provide accommodation for oil and gas accumulation. Although reservoir-forming conditions of the unconformity have the similar parts, the different types of unconformity show different oil and gas reservoir-forming patterns due to different stress behaviours and deformation levels when the unconformities were formed.
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[1] Hutton J.Theory of the earth,or an investigation of the laws observable in composition,dissolution and restoration of land upon the globe[J].Royal Society Edinburgh Transactional,1788:109-304. [2] 刘波,王英华,等.华北奥陶系两个不整合面的成因与相关区域性储层预测[J].沉积学报,1997,15(1):25-30. [3] Bates R L, Jackson J A.Glossary of geology[S].Falls Church Virginia:American Geological Institute,1980. 749. [4] Einsele G,et al.Cycles and events in stratigraphy[M].Springer-Verlag,1991. 83-103. [5] 艾华国,兰林英,等.塔里木盆地前石炭系不整合面特征及其控油作用[J].石油实验地质,1996,18(1):1-13. [6] 吴孔友,查明,等.准噶尔盆地二叠系不整合面及其油气运聚特征[J].石油勘探与开发,2002,29(2):53-57. [7] 汤良杰,金之钧,等.多期叠合盆地油气运聚模式[J].石油大学学报(自然科学版),2000,24(4):67-70. [8] 张克银,艾华国,等.碳酸盐岩顶部不整合面结构层及控油意义[J].石油勘探与开发,1996,23(5):16-19. [9] 付广,吕延防,等.油气运移通道及其对成藏的控制[J].海相油气地质,1999,4(3):24-28. [10] 赵文智,何登发,等.中国复合含油气系统的基本特征与勘探技术[J].石油学报,2001,22(1):6-13. [11] 惠荣耀.准噶尔盆地西北缘的油气运移[J].石油实验地质,1987,9(1):65-68. [12] 王屿涛.准噶尔盆地腹部陆南凸起油气的深源成因及勘探[J].石油实验地质,1999,21(1):34-37. [13] 王屿涛.准噶尔盆地西北缘二叠系稠油地化特征及成因探讨[J].石油实验地质,1997,19(2):158-161. -
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