富台油田岩心裂缝研究  

RESEARCH ON CORE FRACTURES: A CASE STUDY FROM THE FUTAI OILFIELD

作　　者：邹娟 戴俊生 商琳[2] 田博 

机构地区：[1]中国石油大学地球科学与技术学院,山东青岛266580 [2]中国石油冀东油田公司勘探开发研究院,河北唐山063004 [3]中海石油(中国)有限公司湛江分公司,广东湛江524057

出　　处：《地质力学学报》2015年第1期66-72,共7页Journal of Geomechanics

基　　金：国家科技重大专项(2011ZX05014-004);中国石油华北油田公司科技项目(HBYT-WTY-2011-JS-303)

摘　　要：通过对富台油田岩心裂缝观测,描述裂缝的几何特征、充填特征、力学性质等,进而确定裂缝的各项参数.研究结果表明,富台潜山发育大量构造裂缝,主要为北东—南西和北西—南东走向共轭剪切裂缝,同时可见近东西走向裂缝.裂缝基本为近垂直剪裂缝,开度集中在0.6～0.8mm,以方解石半充填为主,体密度为5 ～ 10 m2/m3,北部较南部地区裂缝密度偏大,裂缝更为发育.Through core observation in Futai oilfield,we describe the geometric characteristics,filling characteristics and mechanical properties to conduct research on various parameters of fractures.The results showed that a great amount of structural fractures was developed in Futai buried hills,which formed two directions.One was NE-SW and NW-SE direction conjugated shear fractures that were dominant,another was nearly E-W.Fractures were mainly vertical ones with the characteristics of E-W shear fractures.The core fracture openings which were mainly half filled with calcite were mainly distributed in 0.6 ～0.8 mm.Its average volume density was between 5 ～ 10 m2/m3,and fractures developed much more in northern part than southern of Futai oilfield.

关 键 词：岩心裂缝 裂缝识别 裂缝参数 富台油田 

分 类 号：TU454[建筑科学—岩土工程]