Open-hole extension limit of offshore extended-reach well considering formation collapse
Juncheng Zhang,
Jun Li,
Zhonghui Li
et al.
Abstract:The current extension limit prediction model for offshore extended-reach well (ERW) in mudstone does not consider the formation collapse, which poses a huge risk to offshore drilling construction. To address this problem, this paper presents new open-hole extension limit prediction model for ERW. By considering formation collapse, rate of penetration (ROP), and annular pressure loss, the extension limit models during normal drilling and tripping were derived. The sensitivity of geological and engineering facto… Show more
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