Directional/complex wells
This paper discusses the development of a multientry, multistage fracturing system and its advantages over traditional openhole multistage fracturing solutions.
This paper proposes a methodology for preventing drillstring fatigue and failure in deep wells with large shallow doglegs.
In this paper, the authors propose a regression machine-learning model to predict stick/slip severity index using sequences of surface measurements.
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A specialized fibrous material was examined and was found to be effective for hole-cleaning applications. -
The operator drilled a pair of complex, ultraextended-reach-drilling (ERD) wells a mature offshore Western Australia field despite shallow reservoir depth, extreme ERD profile, and high tortuosity requirements.
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Anomalies in heart function can be diagnosed in real time by measuring an electrical signal. Petroleum engineers have adapted the concept to diagnose anomalous drilling conditions in real time using a shock signature recorded downhole.
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Schlumberger has won a $480-million contract to drill 96 oil wells in southern Iraq for the country’s Basra Oil Company and for ExxonMobil, which operates the giant West Qurna-1 field with partners from Iraq, Japan, Indonesia, and China. West Qurna-1 is one of the world’s largest oil fields.
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Utah FORGE has completed the first highly deviated, deep geothermal well to target depth and at planned trajectory, 60 days ahead of schedule.
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Our understanding of drilling with better software, instrumentation, machines, computer vision, downhole tools, and robots will continue improving the economics of horizontal wells, and the trend is set to continue. This is good news for the geothermal market.
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The complete paper describes an offshore artificial island project northwest of Abu Dhabi in which drilling limits were extended continually by adopting new technologies and practices in an extended-reach-drilling (ERD) campaign.
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Rystad Energy compared the decommissioning costs based on two similar steel platforms, one in each region, using its cost-estimating tool.
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The complete paper discusses the use of cumulative production ratio curves normalized to a given reference volume in time for different unconventional plays in North America to investigate the median trend for each play and the median ultimate recovery per play.
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Although multilateral and long-reach wells are common, the technological development is not complete. Effective implementation of digital technology requires complementary development of the technology itself.
