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MANAGING WELL PLACEMENT UNCERTAINTIES IN EXTENDED REACH HORIZONTAL WELLS USING DEEP RESISTIVITY INVERSION
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, APGCE 2019, Oct 2019, Volume 2019, p.1 - 4
Abstract
Two Extended Reach Drilling (ERD) Horizontal wells were drilled in SK10 Sarawak Malaysia. The main objective was to penetrated B reservoir, that required minimum of 500m reservoir exposure in clean gas zone. Due to Geomechanic concern, those wells were designed with two different mud systems (SOBM in 12 _ inch hole landing section and WBM in 8 _ inch hole horizontal section). Seismic study revealed the reservoir vertical depth uncertainty remain as high as ±25m TVD, which posed significant challenges, in landing the 12 _ inch hole section conventionally. This paper will present the success story of planning, execution and advanced delivery product to land the well at 7m MD penetration into top reservoir and continue to place the well accurately at 2–3m TVD along the 500m MD horizontal section.