论文部分内容阅读
以A油田Pz段储集体为研究对象,采用井震联合技术进行精细连井标定可以增强层位标定横向上的连续性和可靠性。引入现代岩溶理论指导基底顶面构造解释,落实尖灭线及构造圈闭。研究区重新落实碳酸盐古潜山构造52.7 km2,增加了勘探开发的面积。利用三维可视化技术展现古地貌特征,将古地貌分为峰丛洼地、峰林谷地和古侵蚀沟3种类型。综合地质、测井和地震响应特征,将研究区储集体分为溶洞孔隙型、裂缝孔隙型和裂缝型3种类型。综合地震反演和蚂蚁体追踪建模技术,明确了研究区3类储集体的空间展布特征。认为Ⅰ类溶洞孔隙型储集体主要沿古构造高部位发育,而且位置越高储层厚度越大;Ⅱ类裂缝孔隙型储集体发育于构造斜坡部位;Ⅲ类裂缝型储集体受断裂影响明显,发育于断裂附近。
Taking Pz reservoir of A field as the research object, the fine-well calibration of well-seismic joint technology can enhance the continuity and reliability of horizontal calibration of horizon. The introduction of modern karst theory to guide the interpretation of the top surface structure of the substrate, the implementation of pinch outlines and structural traps. The study area re-implemented carbonate buried hill structure 52.7 km2, an increase of exploration and development area. The use of three-dimensional visualization technology to display the characteristics of ancient geomorphology, the ancient landform is divided into peak cluster depression, peak valleys and ancient erosion ditch three types. According to the characteristics of geology, logging and seismic response, the reservoirs of the study area are divided into three types of cave type, fracture type and crack type. Comprehensive seismic inversion and ants body tracking modeling techniques, clear the spatial distribution characteristics of three types of reservoirs in the study area. It is concluded that the type Ⅰ karst pore-type reservoirs mainly developed along the paleo-structural high positions and the reservoir positions are higher with the higher positions. Type Ⅱ fractured pore-type reservoirs develop in the structural slope. Type Ⅲ fractured reservoirs are significantly affected by faults, Developed near the fracture.