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MANAGING WELL PLACEMENT UNCERTAINTIES IN EXTENDED REACH HORIZONTAL WELLS USING DEEP RESISTIVITY INVERSIONNormal access

Authors: J.C.J. Yii, G.I. Santoso and K.A. Alang Ltd
Event name: Asia Petroleum Geoscience Conference and Exhibition 2019
Session: e-Poster Session 5: Field Development
Publication date: 29 October 2019
DOI: 10.3997/2214-4609.201903341
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 316.38Kb )
Price: € 20

Summary:
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 ¼ inch hole landing section and WBM in 8 ½ 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 ¼ 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.


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