TY  - DATA
AU  - Sugiyama,Hiromi
ED  - International Gas Union, IGU
ED  - World Gas Conference (22nd. : 2003 jun 1-5 : Tokyo)
ED  - International Gas Union, IGU
TI  - The first sucsessful multi staged fracturing in a deep volcanic gas reservoir in Japan
U1  - CD I249 1 0013788 
N1  - Disponible en CD en formato PDF
N2  - Transcripción del abstract original del autor: The first multi-stage completion in a deep, hot, and naturally fractured volcanic rock of the Minami-Nagaoka gas field, Niigata Prefecture, Japan, was successfully completed using six propped fracture treatment stages. During two propped fracture treatments pumped in early ‘90s, treatments failed miserably with only about 20% of the designed proppant placed before job termination due to premature screen-outs. The new treatments in Minami-Nagaoka focused on the ability to mitigate the adverse effects of multiple hydraulic fracture propagation and the accompanying severe near-wellbore fracture tortuosity. Many unconventional changes, including completion changes to obtain highest possible injection rates to enhance proppant placement, aggressive proppant slug strategy, real-time fracture treatment analysis, gel testing for minimization of proppant damage, careful perforation placement, quality control, extreme overbalance perforating, and use of small-grained proppant, resulted in successful stimulation and favorable production response. This paper focuses on these new design concepts and also the fracturing results
ER  -