Главная цель Научно-Технического Центра «Газпром нефти» («Газпромнефть НТЦ»)повышение нефтедобычи и ее эффективности за счет внедрения новых технологий и проектных решений на месторождениях «Газпром нефти». НТЦ обеспечивает аналитическую, методическую и научно-техническую поддержку п роцессов разведки и добычи нефти.
Horizontal multi-fractured wells nowadays are the most common way of low-permeability reservoirs exploitation either in Russian and foreign oilfields. Besides its high efficiency such completion has a lot of factors (usually undefined) which can together significantly decrease oil rate. Here some of them are listed: Drilled horizontal well length and producing well lengthNumber of created and producing fracturesFracture length by design and by the actual production and well-testFracture location in relation to well (azimuth and initialization interval).Interference between neighborhood wells through the fractures during injection and productionEtc.
The paper deals with most interesting parts of a complex project which purpose is to realize the multi-fractured well potential and production system diagnostics. There are three main issues in this paper:
Designing – filed-sector choosing, optimum spacing and well completion calculations
Realization – well construction and studies conduction
Analysis – comparison between new project wells and common wells in the neighborhood, geological and hydrodynamic model correction
Current primary project result is a significant exploitation system efficiency growth after a change of well and fracture directions (perpendicular to the wellbore). The secondary but anyway very important results are learned lessons and new competences in well construction and studies.
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