Unlocking Barriers ∂13C1 Isotope Logging Unravelling Subsurface Compartments

Utilisation of real-time δ13C1 Isotope logging service was used as a formation evaluation tool driven by successful field tests. Its capability of providing stable and high-resolution data under the difficult conditions on an offshore drilling site was favourable. (Niemann et al., 2010). Isotope data acquired is further integrated to enhance interpretation of barrier identification. Development wells were drilled in M Field offshore Sabah, of which 9 producers’ and 2 water injectors targeting stacked reservoirs M1 and M2. Highly deviated wells were drilled from a subsea template positioned slightly north west of the crestal producing structure in avoidance of placing facilities over a severely pockmarked seabed. During the drilling campaign, Health, Safety and Environment (HSE) and well delivery scopes were achieved. This is achievable by the amalgamation of data acquired from the exploration and appraisal wells in aiding us to reduce the uncertainties presented prior to developing the field. M field is complexly faulted where compartmentalisation is perceived as a risk. Thus, deploying this tool will allow us to improve M field economics.Development wells were drilled in M Field offshore Sabah, of which 9 producers’ and 2 water injectors targeting stacked reservoirs M1 and M2. Highly deviated wells were drilled from a subsea template positioned slightly north west of the crestal producing structure in avoidance of placing facilities over a severely pockmarked seabed. During the drilling campaign, Health, Safety and Environment (HSE) and well delivery scopes were achieved. This is achievable by the amalgamation of data acquired from the exploration and appraisal wells in aiding us to reduce the uncertainties presented prior to developing the field. M field is complexly faulted where compartmentalisation is perceived as a risk. Thus, deploying this tool will allow us to improve M field economics. Development wells were drilled in M Field offshore Sabah, of which 9 producers’ and 2 water injectors targeting stacked reservoirs M1 and M2.

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