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Ultra-stable PDC drill bit technology improves performance in Southern Mexico applications

Posted on 30 October 2009 in 2008, Innovating While Drilling, July/August

By Dalmo Amorim, ReedHycalog/University of São Paulo; Andrew D Murdock, Carlos Huerta, ReedHycalog; Diogo S Oliveira, Fabiola Diaz, Gustavo A Padron G, Willie Columbine, Schlumberger IPM; Wilson S Iramina, University of São Paulo As worldwide demand for hydrocarbons continues to grow and with shallow reservoirs rapidly depleting, most new discoveries are being made at greater […]

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Tough directional TCIs deliver longer runs with higher ROP in Canadian build sections

Posted on 30 October 2009 in 2008, Innovating While Drilling, July/August

By Chad Mason, Caleb Rickabaugh, Eric Olson, Hughes Christensen Certain formations create unique challenges for operators drilling directional applications with roller cone bits. In western Canada, for example, interbedded formations of hard sandstone, siltstone, shale and chert have frustrated operators using conventional tungsten carbide insert (TCI) bits to drill a directional wellbore. In addition to […]

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Improved design processes allow bits to fit specific applications, set new drilling records

Posted on 30 October 2009 in 2008, Innovating While Drilling, July/August

By Jerry Greenberg, contributing editor Designing a drill bit with the correct configuration and hydraulic performance for a specific application has everything to do with a well’s success. A wrong bit for the application can result in low rate of penetration (ROP), inefficient hole cleaning and expensive wells that sometimes won’t reach the operator’s geological […]

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Casing Drilling improves mature field production, eliminates fluid losses, directionally drills well

Posted on 30 October 2009 in 2008, Innovating While Drilling, July/August

By Eric Moellendick, TESCO Corp CASING DRILLING has been used in numerous difficult wells and to drill through troublesome well sections that would not have been possible with conventional drilling techniques. The process eliminates tripping of the drill string and requires only a Range II rig with a single mast. In addition, by reducing or […]

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Seismic-while-drilling: Where is it heading?

Posted on 30 October 2009 in 2008, Innovating While Drilling, July/August

The concept of seismic-while-drilling (SWD) promises so much, yet still the industry has realized so little of that promise. Drilling Contractor spoke with Robert Radtke, president of Technology International, about where SWD is at, and where it might be headed. Technology International has been working on a joint project with the US Department of Energy […]

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Telemetry strings, hardware reliability and trasmission capabilities: update and outlook

Posted on 30 October 2009 in 2008, Innovating While Drilling, July/August

By Maximo Hernandez, IntelliServ During recent industry conferences and workshops, reliability figures for the use of telemetry drill strings have been disclosed for the latest wells drilled around the world. These statements of technical performance have had the objective of confirming that the installations of the telemetry network hardware within double shouldered drill strings do […]

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Automated drilling and real-time drilling process monitoring optimize RSS underreamer technology

Posted on 30 October 2009 in 2008, Drilling Rigs & Automation, July/August

By Junichi Sugiura, Steve Jones, PathFinder Energy Services The advancement in deeper drilling programs and directional wells with multiple casing strings have urged the use of an expandable reamer in which casing pass-through ceases to be a restriction. Significant cost savings on enlarging the hole can be obtained by drilling with a rotary steerable system […]

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Operator finds cost-effective rotary steerable applications in Oman’s low-cost environment

Posted on 30 October 2009 in 2008, Innovating While Drilling, July/August, Onshore Advances

By M Riyami, Petroleum Development Oman; J Edwards, E Vache, O Ojeiduma, S Johnston, Wael Darwish, Schlumberger Hydrocarbon basins in the Sultanate of Oman are located in the desert, where rig rates are low. Although this is not a typical environment for sophisticated drilling systems such as rotary steerable systems (RSS), use of this technology […]

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Case study: HPHT infill well drilled successfully in highly depleted reservoir on UKCS field

Posted on 30 October 2009 in 2008, Innovating While Drilling, July/August, The Offshore Frontier

By L. Fambon, G. Joffroy, TOTAL E&P UK Drilling infill wells on HPHT fields after a significant depletion has occurred represents a difficult challenge. It requires drilling from a cap rock remaining at or close to virgin pressure into a reservoir in which pore and fracture pressures have largely decreased due to production. No mud-weight […]

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Seadrill confident in growth, believes modern fleet will pay off, says CEO Thorkildsen

Posted on 30 October 2009 in 2008, Global and Regional Markets, July/August, The Offshore Frontier

By Jeremy Cresswell, contributing editor In Q2 2008, Seadrill landed one of the most spectacular contracts ever awarded in offshore drilling. The client is Petrobras, the revenue potential is $4.1 billion across 18 rig years, and the rigs to be used comprise a trio of sixth-generation semisubmersibles currently in build. Moreover, strategically, Brazil is set […]

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