Results 161 to 170 of about 777 (212)
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Methods for Handling Drilled Gas in Oil-Based Drilling Fluids
SPE Drilling Engineering, 1989SummaryThis paper presents calculation methods for predicting the behavior of drilled-gas contamination of oil-based drilling fluids. The methods are verified by experiments conducted in a 6,000-ft [1828.8-m] test well. This paper also presents field-handling procedures developed with the calculation methods.
P. L. O’Bryan, A. T. Bourgoyne
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Oil-Based Drilling Fluids: Are they an Environmental Risk?
1987The use of oil-based drilling fluids has been discouraged in hydrocarbon exploration and production in the marine environment but these drilling fluids are presently being used to a considerable degree in the Jnited Kingdom and Norwegian sectors of the North Sea.
F. Payne Jerry +6 more
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Optimization of Reinjection Fluids of Oil-Based Drilling Cuttings
56th U.S. Rock Mechanics/Geomechanics Symposium, 2022ABSTRACT: Oil-based drilling fluid will produce a large amount of oil-based drilling cuttings with complex composition and pollution factors. Cuttings reinjection technology, as an effective method to treat oilfield wastes, has gradually become a preferential choice for the treatment of oil-based drilling wastes in ...
Mengying Sun +3 more
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A New High-Temperature Oil-Based Drilling Fluid
Latin American and Caribbean Petroleum Engineering Conference, 1999Abstract This paper presents the laboratory development and a field trial of a novel 100% oil base drilling fluid system. In response to the need for a competitive high temperature inhibitive system, lab testing found an oil soluble polymer that imparts high temperature high pressure fluid loss control in a mud system with stable ...
M. Mas +6 more
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Formulation of an Environmentally Safe Oil Based Drilling Fluid
SPE Asia-Pacific Conference, 1991Abstract The usage of oil especially diesel oil as the continuous phase of drilling mud is widespread when drilling through sensitive producing formation and troublesome shale zone. Diesel oil is harmful to the environment-particularly marine environment in offshore application due to extensive legislation now exist in ...
Abu Yassin +2 more
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Development of Organoclays for Use in Oil-Based Drilling Fluids
Materials Science Forum, 2012The organoclays are derived from bentonite clays treated in aqueous solution with surfactants, which are incorporated into the interlayer surface of clays, covering them with an organic layer; so, the naturally hydrophilic clay becomes hydrophobic.
Mirtys Allamana Ferreira Cardoso +4 more
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Environmentally Safe Oil-Based Fluids for Drilling Activities
Proceedings of SPE/EPA Exploration and Production Environmental Conference, 1999Abstract Diesel based drilling fluids had been widely used in the past due to its low price in the market. However, it has been well documented the adverse health and environmental effects of Diesel mostly due to the high aromatic hydrocarbon content which makes it toxic.
G. Sáchez +6 more
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Wettability Alteration Induced by Oil-Based Drilling Fluid
Proceedings of SPE Formation Damage Control Symposium, 1988ABSTRACT Invert emulsion oil based drilling fluids rely on surfactants and emulsifiers to maintain the stability of the invert emulsion. An excess of oil wetting agents in the system is usually necessary in order to oil wet the drilled solids. This excess of surfactants causes wettability alteration in the drilled formation.
T. J. Ballard, R. A. Dawe
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The Effect of Oxidation on Viscosity of Oil-Based Drilling Fluids
Journal of Canadian Petroleum Technology, 2006Abstract True downhole rheological properties affect equivalent circulating density, hole cleaning, barite sag, surge/swab pressures during tripping, pump pressure, and bit hydraulics. Gelation and excessive viscosity are major concerns at high temperatures.
K. Shahbazi +3 more
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Dynamic Barite Sag in Oil Based Drilling Fluids
Mineral Processing and Extractive Metallurgy Review, 2000Abstract A rheological technique is described which utilises flat parallel plate geometry. The technique is sensitive enough to pick up the effect of syneresis and resulting movement of denser materials from the surface layers into the bulk of the drilling mud samples over time.
RICHARD P. JACHNIK, GEOFFREY ROBINSON
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