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本文对克拉玛依大逆掩断裂带的三个组成部分的石炭系地层,利用综合研究的方法,分析了各带的石炭系岩相、成岩后生作用及孔隙结构特征。归纳并计算了能代表裂缝和基质岩块性质的十九个特征参数。对这三个带四类储层进行了初评:推复体主部为好的储集层;下盘掩覆带为中等储集层;推复体前缘断块为中等储集层。根据地质情况,结合油藏性质建立了四种储层孔隙结构地质模型:1、推复体主部双孔隙度模型;2、下盘掩覆带裂缝性模型;3、前缘断块碎屑岩型双孔隙度模型;4、前缘断块火成岩双渗透率模型。通过储层评价及模型的建立,展示了西北缘石炭系油气勘探的广阔前景,并提出了对今后勘探工作的建议。 石炭—二叠系地层在准噶尔盆地西北缘地区分布广泛。从岩类上讲,既有沉积岩,又有火成岩;从岩相上讲,既有泻湖相、水下冲积相沉积,又有火山碎屑相;从构造特征上讲,它们既受克拉玛依大逆掩断裂带的控制,又分别处于不同的构造部位;加之后生成岩作用的影响,使之各类储集层呈现出不同的特征。 根据近年来对克拉玛依大逆掩断裂带构造模式的研究,可以将它分为五个组成部分:1、推复体主部;2、推复体上复地层超覆带;3、前缘断块带;4、逆掩断裂下盘掩覆带;5、断裂前缘外围带。 这五个组成部分,其构造特(?)下: 一、推复体主部 自?
In this paper, the Carboniferous strata of the three major components of the Karamay Great thrust cover fault zone are studied. Based on comprehensive study, the Carboniferous facies, diagenesis and pore structure of each belt are analyzed. Nineteen characteristic parameters that can represent the nature of fractures and matrix rocks are summarized and calculated. The three types of reservoirs with the first evaluation: the main body of the restoration body is a good reservoir; the lower cover zone is a medium reservoir; and the front of the thrust body is a medium reservoir. According to the geological conditions and the nature of the reservoir, four reservoir geological model of the pore structure has been established: 1, the main porosity of the main body of the double porosity model; 2, the lower cover fracture zone model; 3, Rock dual porosity model; 4, dual permeability model of igneous rocks in frontal fault. Through the reservoir evaluation and model establishment, the broad prospect of hydrocarbon exploration in Carboniferous in the northwestern margin is demonstrated, and suggestions for future exploration work are put forward. The Permo-Carboniferous strata are widely distributed in the northwestern margin of Junggar Basin. From the rock category, both sedimentary rocks, but also igneous rock; from the facies speaking, both the lagoon facies, underwater sedimentary facies, there are volcaniclastic phase; from the structural characteristics, they are both subject to Karamay inverse The control of the fault zone is located at different tectonic positions. After the influence of the diagenesis, the various types of reservoirs show different characteristics. According to the recent research on the tectonic model of the Karamay large overthrust fault zone, it can be divided into five parts: 1, the main part of the body; 2, the overlying strata over the belt; 3 the front edge Block band; 4, cover the lower cover of the cover cover zone; 5, the front edge of the fault zone. The five components, the structure of special (?) Under: First, the main body of the rehabilitation body from?