确定地下埋藏砂体与裂缝空间方位的原理和方法
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  • 英文篇名:The principles and methods on determining spatial orientation of sandstones and fractures in subsurface reservoir
  • 作者:周亚楠 ; 程鑫 ; 马轮 ; 韦乐乐 ; 刘秀婷 ; 樊文静 ; 王海军 ; 吴汉宁
  • 英文作者:ZHOU Ya-nan;CHENG Xin;MA Lun;WEI Le-le;LIU Xiu-ting;FAN Wen-jing;WANG Hai-jun;WU Han-ning;Department of Geology & State Key Laboratory of Continental Dynamics,Northwest University;Research Institute of Petroleum Exploration and Development in Northwest Branch;Xi’an Research Institute of China Coal Technology & Engineering Group Co.,LTD;
  • 关键词:古地磁 ; 粘滞剩磁 ; 高温剩磁 ; 岩心原始方位 ; 裂缝及砂体空间展布方位
  • 英文关键词:paleomagnetism;;viscous and high-temperature remanence;;original orientation of the core;;sandstones and fractures distribution
  • 中文刊名:DQWJ
  • 英文刊名:Progress in Geophysics
  • 机构:西北大学地质学系,西北大学大陆动力学国家重点实验室;中国石油勘探开发研究院西北分院/中国石油天然气集团公司油藏描述重点实验室;中煤科工集团西安研究院有限公司;
  • 出版日期:2015-06-15
  • 出版单位:地球物理学进展
  • 年:2015
  • 期:v.30;No.131
  • 基金:中国科学院战略性先导科技专项(B类)(XDB03010000);; 国家自然科学基金资助项目(41174055)联合资助
  • 语种:中文;
  • 页:DQWJ201503033
  • 页数:8
  • CN:03
  • ISSN:11-2982/P
  • 分类号:267-274
摘要
储层裂缝及砂体的空间展布方位对油气勘探和开发具有重要意义,岩心是研究储层的唯一实体,虽有多种岩心原始方位恢复的手段,但是缺乏简便易行的方法.本文用古地磁方法对井下钻井岩心进行复位,进而研究岩心裂缝及砂体的展布方向,以延长油田X区块6口井46块样品为例,得出了这6口井的裂缝及砂体空间展布方位,并对该方法的可靠性进行了分析,完善了该方法的理论与技术体系.研究结果表明,利用古地磁方法进行岩心复位具有成本低、易操作且精度高的特点.
        The spatial distribution of reservoir fractures and sand bodies are of great significance for oil and gas exploration and exploitation,The only entity to study reservoir is core which should be original orientated,although there are a variety of means to obtain the original orientation of the core,but the lack of effective one.In this paper paleomagnetic method was used to study spatial distribution of reservoir fractures and sand bodies which based on restored the original orientation of the core.The theory and technology system of the method was improved by obtaining the original orientation of reservoir fractures and paleocurrent of 46 samples from 6wells in Yan-Chang Oilfield X-block,and the reliability of the data was analyzed and successfully tested by directly observation in the field.The research result shows that the method which used paleomagnetism method to restore the original orientation of the core have merits of easy operation,lower-cost and high accuracy.Meanwhile the study also has provided basis for adjusting the wells location and designing plan of reservoir exploitation of X-block.
引文
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