Abstract

Exploration remains a challenge in Baramura anticline due to scarce seismic data owing to tough terrain. A total thirty six wells have been drilled and few surprises from northern part of central Baramura have been encountered. In this structure, thirteen pay sands have given gas production in Baramura anticline out of which five pays are within Upper Bhuban Formation (B-I-I. B-I-II, B-I-III, B-II-I and B-V-I) and eight pays are within Middle Bhuban Formation (B-VI, B-VI-I, B-VI-II, B-VII-I, B-VII-II, B-VII-IIA, B-VII-IIB and B-VII-III). Recently, in Central Baramura, five development wells did not yield hydrocarbons from their objective B-VII-III pay. To resolve this problem, review of geological model was carried out integrating surface geological data, seismic studies, pack/pay wise electrolog correlation, structural modeling, lab studies, pay wise pressure and production data to understand pay dynamics.