塔河油田岩溶特征及成因分析
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摘要
塔河油田为岩溶缝洞型碳酸盐岩油藏,储集体类型以溶洞为主,非均质性极强。为提高油藏勘探开发效果,在大量岩芯、测井以及地震的基础上,结合井间连通性、生产动态资料对岩溶发育的控制因素进行了研究,地质构造演化不仅控制了岩溶分布,且决定了岩溶发育的环境;裂缝是岩溶发育的关键因素,构造裂缝为岩溶发育提供了通道,而非构造裂缝则加速了岩溶作用;水动力条件则控制了塔河油田地表以及地下岩溶发育的格局。
Tahe oilfield is a fractured-vuggy carbonate reservoir, whose reservoirs are mainly composed of vast karst caves, and the heterogeneity is very serious. In order to improve the effect of exploration and development of Tahe oilfield, based on a comprehensive research on rock core, logging and seismic,combined with inter well connectivity, production dynamic data multidisciplinary approach, a comprehensive study is used in the karstification development in this process, the distribution of karst controlled by the geological and structural evolution, also determined the environment of karst development; and fracture was the key factor which controlled the karst development, structural fractures provided channels for karst development, moreover, non-structural fractures accelerated development of karst; and hydrodynamic condition had controlled the development pattern of surface and subsurface of Tahe oilfield.
Tahe oilfield is a fractured-vuggy carbonate reservoir, whose reservoirs are mainly composed of vast karst caves, and the heterogeneity is very serious. In order to improve the effect of exploration and development of Tahe oilfield, based on a comprehensive research on rock core, logging and seismic,combined with inter well connectivity, production dynamic data multidisciplinary approach, a comprehensive study is used in the karstification development in this process, the distribution of karst controlled by the geological and structural evolution, also determined the environment of karst development; and fracture was the key factor which controlled the karst development, structural fractures provided channels for karst development, moreover, non-structural fractures accelerated development of karst; and hydrodynamic condition had controlled the development pattern of surface and subsurface of Tahe oilfield.
引文
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[8]荣元帅,刘学利,杨敏.塔河油田碳酸盐岩缝洞型油藏多井缝洞单元注水开发方式[J].石油与天然气地质,2010,31(1):28-32.
[9]赵敏,侯朝晖,刘莉.缝洞型碳酸盐岩油藏致密隔层分布研究[J].新疆地质,2010,31(4):379-381.
[2]康志宏,魏历灵,康艳芳,等.塔里木盆地油气藏形成期分析[J].新疆石油地质,2001,22(6):462-464.
[3]牛玉静,康志宏,龙旭,等.塔河油田奥陶系岩溶油藏溶洞储集体成因及演化[J].现代地质,2011,24(4):650-659.
[4]阎相宾.塔河油田奥陶系碳酸盐岩储层特征[J].石油与天然气地质,2002,23(3):262-266.
[5]陈琳,康志宏,李鹏,等.塔河油田奥陶系岩溶型碳酸盐岩油藏储集空间发育特征及地质模式探讨[J].现代地质,2013,27(2):356-365.
[6]康志宏.塔河碳酸盐岩油藏岩溶古地貌研究[J].新疆石油地质,2006,27(5):522-525.
[7]林忠民.塔河油田奥陶系碳酸盐岩储层特征及成藏条件[J].石油学报,2002,23(3):23-26.
[8]荣元帅,刘学利,杨敏.塔河油田碳酸盐岩缝洞型油藏多井缝洞单元注水开发方式[J].石油与天然气地质,2010,31(1):28-32.
[9]赵敏,侯朝晖,刘莉.缝洞型碳酸盐岩油藏致密隔层分布研究[J].新疆地质,2010,31(4):379-381.
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