Challenge: In an offshore Trinidad gas field, the project area has a pore pressure that requires a density between 10.4 and 10.8 lb/gal (1.24 and 1.3 SG) to maintain the required overbalance and sand control.
Solution: The BREAKDOWN† HD system, the primary chemical component of the MUDSOLV NG† system, contains a novel chelant (D-SOLVER† HD) compatible with divalent brines.
Results: The usage of the novel breaker system allowed the customer to achieve higher production rates than expected. The drawdown was 200 psi, which was one-half of that predicted from the modelling, and less than the historically seen in the field (up to 1,000 psi). The well cleaned up was also easier compared to past offloads.