基于构造稳定性的断层垂向封闭能力评价  

Evaluation on vertical sealing ability of fault based on structural stability

作　　者：侯亚伟 杨庆红 黄凯 罗宪波 吴婷婷 宋来明 

机构地区：[1]中海石油(中国)有限公司天津分公司渤海油田勘探开发研究院,天津300452 [2]中海油研究总院,北京100027

出　　处：《断块油气田》2013年第2期166-169,共4页Fault-Block Oil & Gas Field

摘　　要：以渤海海域某油田为例,应用地质、钻井、测井及完井等多学科数据建立了完整的断层地质力学模型。在此基础上,从断层稳定性出发,提出了断层垂向封闭性评价模型,定义了断层垂向封闭性指数(FVSI),以此定量表征断层的垂向封闭能力和稳定性;并利用蒙特卡洛模拟考虑了输入参数的不确定性,给出了断层垂向封闭能力的概率分布,为水驱开发油藏地质性溢油风险的量化评价提供了理论依据。In this paper, the whole geological mechanical model of fault is established using multi-disciplinary data such as geology, well drilling, well logging and well completion and taking an oilfield in Bohai Sea as an example. On this basis, the assessment model of vertical sealing of fault is proposed from fault stability. FVSI （fault vertical sealing index） is defined to quantitatively characterize the vertical sealing ability and stability of fault. The uncertainty of input data is considered using Monte Carlo simulation. The probability distribution of vertical sealing ability of fault is provided, which can provide a theoretical basis for quantifying the geologic oil spilling risk of waterflooding development reservoir.

关 键 词：断层 断层垂向封闭指数 构造稳定性 滑动摩擦因数 蒙特卡洛 

分 类 号：TE121.2[石油与天然气工程—油气勘探]