METHOD OF REDUCING THE DENSITY OF DRILLING MUD

METHOD OF REDUCING THE DENSITY OF DRILLING MUD

A method of drilling sub-sea oil and gas production wells in which a liquid hydrocarbon substance, such as a natural gas liquid, is injected into the drilling mud supplied to the well in order to reduce the mud density. The method of the present invention enables reduction and control of the hydraul...

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1. Verfasser: GJEDEBO, JON, GRUDE
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Sprache:eng ; fre
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EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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description A method of drilling sub-sea oil and gas production wells in which a liquid hydrocarbon substance, such as a natural gas liquid, is injected into the drilling mud supplied to the well in order to reduce the mud density. The method of the present invention enables reduction and control of the hydraulic pressure of the drilling mud while drilling production wells in deep water, thereby to require fewer casing runs which eventually yields better oil productivity. Procédé de forage en mer de puits de production de pétrole et de gaz dans lesquels une substance d'hydrocarbure liquide, telle que le gaz naturel liquide, est injectée dans la boue de forage générée dans le puits de façon à réduire sa densité. Le procédé de cette invention consiste à réduire et contrôler la pression hydraulique de la boue de forage lors du forage des puits de production en eau profonde, ce qui exige moins de descentes de tubage et éventuellement permet d'améliorer la production pétrolière.
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The method of the present invention enables reduction and control of the hydraulic pressure of the drilling mud while drilling production wells in deep water, thereby to require fewer casing runs which eventually yields better oil productivity. Procédé de forage en mer de puits de production de pétrole et de gaz dans lesquels une substance d'hydrocarbure liquide, telle que le gaz naturel liquide, est injectée dans la boue de forage générée dans le puits de façon à réduire sa densité. 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subjects EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
title METHOD OF REDUCING THE DENSITY OF DRILLING MUD
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