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Remaining Gas Prediction with Walkaround VSP Data: A Case Study from Junggar Basin, ChinaNormal access

Authors: Y.H. Wang, Q.H. Zhang, Z.D. Cai, C.W. Liu and C. Wang
Event name: 3rd EAGE Workshop on Borehole Geophysics
Session: Posters
Publication date: 19 April 2015
DOI: 10.3997/2214-4609.201412219
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 721.57Kb )
Price: € 20

Two VSP surveys were acquired around DX10 well in Junggar basin in 2004 and 2013, respectively. This study analyzed kinds of time-frequency attributes sensitive to gas reservoir from zero offset time-lapsed VSP data and walkaround VSP data. Reasonable estimation of the remaining gas distribution was derived with the hydrocarbon detection attributes, which is helpful for sidetrack well planning.

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