Lost circulation (LC), commonly encountered in drilling and cementing operations, can be a costly problem that increases non-productive time, especially in highly permeable formations. When LC occurs during cementing, zonal isolation can be compromised. Risks associated with LC affect most applications, including offshore operations. This paper presents the evaluation of a new tailored spacer system (TSS) designed to effectively mitigate LC and its use in deepwater cementing operations to meet zonal isolation objectives.
Keywords:drilling fluid management & disposal, annular pressure drilling, circulation risk mitigation, drilling fluid selection and formulation, fluid loss control, upstream oil & gas, well control, drilling fluids and materials, casing and cementing, rheological property
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