In Tripura only high-tech AC-VFD rigs can work Vol 20, PW 8 (12 Jan 17) Exploration & Production More than a year has passed but ONGC's Tripura workers union has not given up its... Buy this article forRs590 $9 For a 30-article or annual subscription rates click here RelatedONGC needs 4 drilling rigs for three assets (08 Sep 22) Megha promises ALL rigs to ONGC by June 2023 (10 Mar 22) SK Moitra agrees 'mobile' rig for Tripura (18 Oct 18) Quippo riding high with new drilling contracts (01 Jun 17) In Tripura only high-tech AC-VFD rigs can work (12 Jan 17) Huge response in ONGC tender for 5 onland rigs (03 Nov 16) Acute 'topman' shortage at ONGC safety threat (30 Jun 16) 'Give us more rigs!' demands ONGC in Tripura (05 Nov 15) Tripura gas production to triple after ONGC drilling (18 Apr 13) ONGC plans Tripura drilling for gas to Palatana (20 Sep 12)