Abstract

North Assam Shelf area of the Assam & Assam Arakan Basin has been extensively explored in last five decades and 17 oil & gas fields are producing from Paleocene to Miocene reservoirs (Fig.1). The Tipam Group of reservoirs of Miocene age (TS-1 to TS-6) are producing oil mainly from structural prospects. All Tipam pays except TS-4 are extensively explored, however, thrust on exploration of TS- 4 play has not been adequately given in the past. TS-4 sands are sandwiched between the claystones of the Lower Clay Marker (LCM). The overall characteristics of the LCM-TS-4 pack indicate that the sandstones were deposited as isolated lenticular sand bodies and larger channel complexes in meandering fluvial channels. To chase the lead obtained from recently drilled well W-A, a study has been carried out in Rudrasagar and adjoining areas.