¹Ö±éÍ×»Ý(ÏÂʸ) | Ëֱܹé¤Ï¡¢¶áǯÃíÌܤµ¤ì¤ëCommon reflection surface ¡ÊCRS¡ËË¡¤ª¤è¤ÓMulti-dip reflection surfaces (MDRS)Ë¡¤Î¸¶Íý¤ä²òÀÏ¤Î¥×¥í¥»¥¹¤òɳ²ò¤¤Ê¤¬¤é¡¢¤³¤ì¤é¼êË¡¤Ë¤ª¤±¤ëÉʼÁ´ÉÍý¾å¤Î½ÅÍ×ÅÀ¤òÌÀ¤é¤«¤Ë¤¹¤ë¤³¤È¤òÌÜŪ¤È¤¹¤ë°ìÏ¢¤Î¹Ö±é¤ÎÂè2²óÌܤˤ¢¤¿¤ë¡¥º£²ó¤ÏCRS/MDRS²òÀϤòÍøÍѤ·¤¿Â®ÅÙ¿äÄê¤Ë¤Ä¤¤¤Æ¼è¤ê¾å¤²¤ë¡¥CRS/MDRS¤«¤é¿äÄꤵ¤ì¤ë®ÅÙ¤ÎÍ¥°ÌÅÀ¤Ï°Ê²¼¤Ë¤Þ¤È¤á¤é¤ì¤ë ¡§¡µÒ´ÑŪ¡¢¢¹âÌ©ÅÙ¡¢£¹â¿®Íê¡£¤Þ¤¿MDRS¤Î¤ß¤ÎÆÃħ¤È¤·¤Æ°Ê²¼¤¬¤¢¤ë¡§¤Multi-dipÂбþ¡£°Ê¾å¡¢CRS/MDRSË¡¤Ï®ÅÙ¿äÄê¤Ë¤ª¤¤¤Æ¤âÍ¥¤ì¤¿ÆÃħ¤òͤ·¡¢¹âÀºÅ٤ʮÅÙ¿äÄê·ë²Ì¤ÏÃϼÁ²ò¼á¤Ê¤é¤Ó¤Ë¥Ç¡¼¥¿½èÍý¤Ç¤Î³èÍѤ¬´üÂԤǤ¤ë¡¥ |
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| ¹Ö±éÍ×»Ý(±Ñʸ) | A CRS operator is described by the three kinematic wavefield parameters (alpha, KN, and KNIP) and they are automatically analyzed from data at every zero-offset sample. Since CRS parameters can be converted to RMS velocity, a high-density RMS velocity field is obtained without much human intervention. This objectively-analyzed velocity is beneficial especially in geologically complex areas, as well as enhanced stack section derived by CRS/MDRS method. |
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