Maersk Oil & Gas extends drilling envelope

Mærsk drilled the horizontal reservoir section on a Halfdan well starting in May 2002 at 8,255 ft with a standard rotary steerable assembly. However, at 22,800 ft the company ceased drilling operation due to high surface torque readings (41-44,000 ft/ lbs) and a low rate of penetration (22 ft/hr). W...

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Veröffentlicht in:	Offshore (Conroe, Tex.) Tex.), 2006-02, Vol.66 (2), p.54
Hauptverfasser:	RONNAU, Hans-Henrik, VILHELM BALSLEV, Peter, RUSZKA, Jon, CLEMMENSEN, Carl, KALLEVIG, Sverre, GROSSPIETSCH, Ralf, MADER, Georg
Format:	Magazinearticle
Sprache:	eng
Schlagworte:	Applied sciences Crude oil, natural gas and petroleum products Deepwater drilling Drilling Drilling methods and equipments. Rocks mechanics. Directional and horizontal drilling Drilling. Casing. Preparing wells for production Efficiency Energy Exact sciences and technology Friction Fuels Integration Offshore drilling and production Offshore oil wells Production management Prospecting and production of crude oil, natural gas, oil shales and tar sands Technology
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Beschreibung
Zusammenfassung:	Mærsk drilled the horizontal reservoir section on a Halfdan well starting in May 2002 at 8,255 ft with a standard rotary steerable assembly. However, at 22,800 ft the company ceased drilling operation due to high surface torque readings (41-44,000 ft/ lbs) and a low rate of penetration (22 ft/hr). While drilling this section, attempts were made to reduce the high torque readings by adding up to 2% lubricant into the water based mud system.
ISSN:	0030-0608 2688-3295