摘要
以可视化的计算机技术为辅助工具 ,以碳酸盐岩储层裂缝为主题 ,研究一套裂缝预测系统。该系统在综合分析有关裂缝的岩芯和测井资料的基础上 ,利用地质和地球物理成果 ,恢复裂缝主要形成期的古构造 ,模拟相应时期的构造应力场 ,进而从裂缝的构造力学成因出发作出裂缝预测。充分利用多学科、多手段作获取的信息进行综合对比、检验 ,以提高碳酸盐岩储层裂缝预测的置信度。以塔里木盆地塔中地区为实例进行该区二叠纪沉积以前的古构造研究与恢复 ,反演古区域应力场 ,建立三维地质模型与相应的应力场计算模型 ,从构造力学和应力场的角度进行塔中地区奥陶系碳酸盐岩储层的裂缝预测。
A fracture prediction system is studied for carbonate reservoir based on visualization technique. After integrated analyzing of fracture information from cores and well logs, the system restores the paleo structure by using of geological and geophysical information, then builds a geomechanical model and simulates its paleo stress field. Thus, a mechanics oriented fracture distribution is predicted. Furthermore, a lot of information about stress and fracture, which are obtained from multiple disciplines and methods, are compared so that a receivable prediction is gotten. Meanwhile, an application is presented at Tazhong area, Tarimu Basin. First, paleo structure before Permian is restored, and then paleo regional stress field is inferred by trend method0. The 3 dimesional geological and mechanical models are built, the stress is calculated, and a fracture prediction is presented.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2000年第z1期1037-1041,共5页
Chinese Journal of Rock Mechanics and Engineering
关键词
应力场
裂缝
预测
储层
stress field, fracture, prediction, reservoir
