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阿克库勒凸起奥陶系碳酸盐岩古岩溶储层分布规律及圈闭研究
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摘要
应用岩溶地质学、储层地质学、构造应力应变分析和现代石油地质学的新理论,本文
    综合研究了阿克库勒凸起碳酸盐岩构造裂缝、古岩溶储集体的发育程度和展布特征。采用
    宏观分析与重点区块深入剖析相结合、石油地质综合研究与地震精细解释、特殊处理解释
    相结合,寻找与确立裂缝、岩溶的地震响应,确定有利圈闭,并进行综合评价,提供了钻
    探目标和有利勘探靶区。
     通过对阿克库勒凸起构造变形特征、变形期次的研究,总结了应力场特征及相应的构
    造变形规律,分析了不同期次构造变形对构造裂缝以及对岩溶的控制作用。在本区奥陶系
    具有北东、北西、南北向三组断裂优势方向,其中南北向断裂以张性为主;海西早期形成
    的裂缝充填严重,海西晚期裂缝在凸起的南部保存好,形成有效的储集空间。
     阿克库勒凸起经历了多期构造活动和长期岩溶作用的改造,形成分布极不均匀的裂
    缝、孔洞系统,构成了奥陶系碳酸盐岩储层的主要储集空间。在区内广泛分布风化壳型岩
    溶作用。在本区至少发育4期岩溶作用,海西早、晚期是岩溶发育的主要期次。岩溶作用
    对奥陶系碳酸盐岩储层的形成和分布具有重要的控制作用,其储层发育层段限制在岩溶作
    用影响深度范围内。
     对储层进行了综合评价,并预测了塔河油区下奥陶统碳酸盐岩裂缝及溶洞的有利发育
    区带,指出了阿克库勒凸起大型溶洞的发育部位及缝洞型储集体发育的有利场所。
     将阿克库勒凸起奥陶系圈闭划分为三大类,五种基本类型,并对各种类型圈闭的主要
    发育区及圈闭特征进行了研究。
[Abstract]
     With Karst Geology, Reservoir Geology, Structure stress strain analysis and new theory of Geology of Petroleum, the paper general research tectoclase, degree of fossil karst reservoir upgrowth and distributing characteristic in Akekule uplift. Adopt the whole analysis combine the emphases area research, oil geology generalresearch combine subtle seismic interpretation and special interpretation, and looking for the seismic re~ponse on the fractures and karst, confirm favorable trap, and provide the drilling map and exploration map by generalresearc~.
     The paper summarize characteristic of field of stress and the relevant rule of tectonization, and analysising tectolase and karst of controlling in the different tectonization according to the researching of characteristic of teconization and deformation terms in the Akekule uplift. There are three group fault in Ordovician of this area, and the main meridional fault is tension fault. Cranny are strong filled that formed in early Hercynian. the fracture are preserving well that formed in late Hercynian, and fromed valid reservoir space.
     The Akekule uplift formed unhomogeneous fractures and pore-holes according to multiple tectonic events and Karstifications. The fractures and pore-holes are the main reservoir of Ordovicjan reservoir rock. There are widespread weathering Karstifications. It is mesogenetic-late Caledonian, early Hercynian, late Hercynian and Indo-Sinian-YanShanian The erarly-Hercynian and late Hercynian is the main stage of Karstification. The karstification is the main control function during the period of Ordovician Carbonate reservoir rock is farmed and distributed. The reservoir is limited by the effected deep of Karstification.
     The paper generalevaluate reservoir, and forecast favorable upgrowth strap of fractures and pore-oles in the carbonate rock of lower Ordovician. Point out the favorable area where the large cavern and fracture-hole reservoir could be growth in Akekule uplift.
     The traps in Akekule uplift are partition into three big type, five base sub-type, and made research in main growth area all kinds of traps and
    ?characteristic of traps.
引文
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