Abstract

An efficient ahead fluid was utilized to make good cementing by effectively removing mud in a long open hole with narrow clearance. The fluid was formulated by combining appropriate flushing fluid and high density anti-salt fluid, and applied to a Moxi16 well. It was drilled to 4849 m with 215.9 mm drill bit in a 177.8 mm (diameter) casing. It was difficult to cement properly due to narrow space, low casing centralizers, high temperature gradient and intermittent presence of oil and gas. An efficient ahead fluid system with proper rheological properties resulted in acceptable cementing quality and zonal isolation.

Keywords:
well section account, drilling fluid formulation, compatibility property, fluid system, application, weighting agent, cement slurry, displacement efficiency, drilling fluid management & disposal, spacer fluid
Subjects:
Drilling Fluids and Materials, Drilling fluid selection and formulation (chemistry, properties), Drilling fluid management & disposal
This content is only available via PDF.
2014. International Society of Offshore and Polar Engineers
You can access this article if you purchase or spend a download.