What’s the difference on OBC and OBN Seismic Exploration?

obc4dLink Alternatif Obc4d. 👾 Gamer in ly. Obc4d, Obc4d Terpercaya, Daftar Obc4d, Bandar Obc4d, Login Obc4d, Masuk Obc4d,At present all countries have shifted the focus of oil and gas exploration to Ocean. As the main means of oil exploration in shallow sea areas, OBC (Ocean Bottom Cable) seismic exploration