Uncertain response to onland 3D tender from ONGC Vol 10, PW 7 (27 Jul 06) Exploration & Production This monthآ’s ONGC tender for onland 3D seismic might be the largest ever of its kind but first indications are that seismic contractors are lukewarm.... Buy this article forRs590 $9For a 30-article or annual subscription rates click here Data not available in ...