An Investigation to Determine the Effect of Synthetic Mud Compressibility in Deepwater Cementing Operations

摘要

Accuracy in displacement calculations is required to ensure proper displacement of cement with wiper plugs and drilling fluid. With deepwater operations moving to deeper seas the effect of temperature variations and high pressure induce another difficult to model parameter: compressibility of a synthetic mud. Dynamic temperature modeling has facilitated better 3D modeling of mud compressibility with respect to pressure and temperature during the cementing process. Ultimately the theoretical modeling results are compared with actual field data from Gulf of Mexico (GOM). The comparative matrix shows the nature of the complexity of this analysis and serves as a pioneering attempt in quantifying the effect of mud compressibility in deepwater cement displacement operations.