Prevention of barite sag in water-based drilling fluids by a urea-based additive for drilling deep formations
Barite sag is a challenging phenomenon encountered in deep drilling with barite-weighted
fluids and associated with fluid stability. It can take place in vertical and directional wells,
whether in dynamic or static conditions. In this study, an anti-sagging urea-based additive
was evaluated to enhance fluid stability and prevent solids sag in water-based fluids to be
used in drilling, completion, and workover operations. A barite-weighted drilling fluid, with a
density of 15 ppg, was used with the main drilling fluid additives. The ratio of the urea-based …
fluids and associated with fluid stability. It can take place in vertical and directional wells,
whether in dynamic or static conditions. In this study, an anti-sagging urea-based additive
was evaluated to enhance fluid stability and prevent solids sag in water-based fluids to be
used in drilling, completion, and workover operations. A barite-weighted drilling fluid, with a
density of 15 ppg, was used with the main drilling fluid additives. The ratio of the urea-based …
以上显示的是最相近的搜索结果。 查看全部搜索结果