Mbak Vit, Pada saat VSP/checkshot yang utama diukur kan travel time gelombang suara yang merambat, nah tebalnya casing relative jauh lebih kecil dibandingkan keseluruhan massa batuan/formasi yang dilewati gelombang, jadi tidak ada masalah sama sekali. Juga pada VSP gelombang hanya melewati casing sekali.
Yang justru harus diperhatikan, terutama utk VSP sebenarnya adalah coupling yang bagus, sehingga meminimalisasi noise pd komponen X & Y. Sedangkan kalau hanya utk checkshot selama komponen Y bagus, sikat aja, toh yang dipake hanya info travel time-nya saja. Semoga bermanfaat Ferry -----Original Message----- From: Parvita Siregar [mailto:[EMAIL PROTECTED] Sent: Thursday, May 03, 2007 4:02 PM To: [email protected] Subject: [iagi-net-l] VSP behind casing Mau tanya, kalau ada geophysicist di sini... Kalau VSP behind casing, bagaimana hasilnya setelah dikalibrasi? Apakah memuaskan? Parvita ------------------------------------------------------------------------ ---- Hot News!!! CALL FOR PAPERS: send your abstract by 30 March 2007 to [EMAIL PROTECTED] Joint Convention Bali 2007 - The 32nd HAGI, the 36th IAGI, and the 29th IATMI Annual Convention and Exhibition, Bali Convention Center, 13-16 November 2007 ------------------------------------------------------------------------ ---- To unsubscribe, send email to: iagi-net-unsubscribe[at]iagi.or.id To subscribe, send email to: iagi-net-subscribe[at]iagi.or.id Visit IAGI Website: http://iagi.or.id Pembayaran iuran anggota ditujukan ke: Bank Mandiri Cab. Wisma Alia Jakarta No. Rek: 123 0085005314 Atas nama: Ikatan Ahli Geologi Indonesia (IAGI) Bank BCA KCP. Manara Mulia No. Rekening: 255-1088580 A/n: Shinta Damayanti IAGI-net Archive 1: http://www.mail-archive.com/iagi-net%40iagi.or.id/ IAGI-net Archive 2: http://groups.yahoo.com/group/iagi --------------------------------------------------------------------- ---------------------------------------------------------------------------- Hot News!!! CALL FOR PAPERS: send your abstract by 30 March 2007 to [EMAIL PROTECTED] Joint Convention Bali 2007 - The 32nd HAGI, the 36th IAGI, and the 29th IATMI Annual Convention and Exhibition, Bali Convention Center, 13-16 November 2007 ---------------------------------------------------------------------------- To unsubscribe, send email to: iagi-net-unsubscribe[at]iagi.or.id To subscribe, send email to: iagi-net-subscribe[at]iagi.or.id Visit IAGI Website: http://iagi.or.id Pembayaran iuran anggota ditujukan ke: Bank Mandiri Cab. Wisma Alia Jakarta No. Rek: 123 0085005314 Atas nama: Ikatan Ahli Geologi Indonesia (IAGI) Bank BCA KCP. Manara Mulia No. Rekening: 255-1088580 A/n: Shinta Damayanti IAGI-net Archive 1: http://www.mail-archive.com/iagi-net%40iagi.or.id/ IAGI-net Archive 2: http://groups.yahoo.com/group/iagi ---------------------------------------------------------------------
