摘要
基于目前石油天然气行业标准SY/T 5358—2010对致密砂岩储层流速敏感性的评价中的损害率和临界流速这两项指标,无法深入表征不同类型储层间的流速敏感性平面差异性问题,结合铸体薄片、X衍射测试分析、扫描电镜和CT扫描等测试,分别从岩性、物性和孔喉等方面,对塔里木盆地库车北部构造带侏罗系阿合组致密碎屑岩速敏的致敏机理进行对比分析,从孔喉特征、微粒运移和岩矿含量等角度,深入剖析不同流速敏感性成因;对速敏较强的中部YN井区采用加入颗粒保护剂的措施,降速敏损害效果显著。
As the two indexes namely damage rate and critical velocity of the current oil and gas industry standard SY/T5358-2010 which are used to evaluate the sensitivity of tight sandstone reservoir velocity cannot deeply characterize the difference of flow velocity sensitivity between different types of reservoirs.The sensitization mechanism of Jurassic Ahe Formation of tight clastic rocks in the northern Kuqa structural belt of Tarim Basin was compared and analyzed from the aspects of lithology,physical properties and pore throat by means of X-ray diffraction analysis,scanning electron microscope and CT scanning.From the pore throat characteristics,particle migration and rock ore content,the causes of different velocity sensitivity are deeply analyzed.The central YN well area with strong sensitivity adopts the measures of adding particle protective agent,reducing speed sensitivity damage effects is remarkable.
作者
谭钲扬
欧阳传湘
王国锋
付颖
陈忠进
李佳旭
TAN Zhengyang;OUYANG Chuanxiang;WANG Guofeng;FU Ying;CHEN Zhongjin;LI Jiaxu(College of Petroleum Engineering,Yangtze University,Wuhan,Hubei 430100,China;Directional Well Technical Service Branch of CNPC Bohai Drilling Engineering Co.,Ltd.,Tianjin 300000,China;Drilling and Production Technology Research Institute of Qinghai Oilfield Branch,Dunhuang,Gansu 736202,China;Yumen Oilfield(Chad)Co.,Ltd.,Jiuquan,Gansu 735000,China)
出处
《钻采工艺》
CAS
北大核心
2020年第3期82-85,I0006,共5页
Drilling & Production Technology
基金
国家自然科学基金资助项目“超临界CO 2压裂页岩多物理场耦合机理研究”(编号:51804039)。
关键词
致密碎屑岩储层
流速敏感性
平面差异
保护措施
塔里木盆地
tight clastic reservoir
flow velocity sensitivity
plane difference
protection measures
Tarim Basin
