Case study at area Well S7 with Borehole-Ground TFEM method

Borehole-Surface electromagnetic method (BSEM) has a long history in Russia, and has become an important mean for hydrocarbon exploration. It was introduced into BGP in the year 2000. On the basis of which, Borehole-Surface TFEM method has been developed: transmitting-receiving systems with 64 transmitting and receiving frequencies and up to 4 waveforms has been developed, accordingly, pseudo 2D constraint inversion and extraction of induced polarization anomaly have been achieved. In recent years, test and production for oil-water boundary identification have been conducted in LiaoHe oilfield, Tuha oilfield, JiLin oilfield, DaGang oilfield, ChangQing oilfield, Xinjiang and Saudi Arabia oilfield, etc. and achieved good results, deserving full recognition the Clients at home and abroad. Here we take the application in area Well S7 of the G basin in west China as an example to introduce this method and its application effects.