Results 251 to 260 of about 24,031,090 (295)

Separation and Recycling of Used Oil-Based Drilling Fluids

IPTC 2009: International Petroleum Technology Conference, 2009
Abstract A novel approach has been taken to separating, recovering and recycling the oil-continuous phase from used oil-based drilling fluids. The method is based on destabilizing and aggregating the suspended solids and brine droplets through the application of polymers and surfactants in a controlled mixing device.
Ray Farinato, Henry M. Masias, Diana Garcia, Richard Bingham, Glenn David Antle   +4 more
openaire   +1 more source

Cement slurry contamination with oil-based drilling fluids

Journal of Petroleum Science and Engineering, 2017
Abstract Primary cementing constitutes the displacement of a cement slurry in an annular oil well. In the event of an unwanted mixture of drilling fluid and cement slurry during this operation, cement properties may be compromised. The aim of this study was to investigate the contamination in cement slurries caused by oil base drilling fluids ...
Angelo Araujo Soares, Júlio Cézar de Oliveira Freitas, Dulce Maria de Araujo Melo, Renata Martins Braga, Lucas Amaral-Machado, Paulo Henrique Silva Santos, Lech Walesa Oliveira Soares   +6 more
openaire   +1 more source

Formulation of an Environmentally Safe Oil Based Drilling Fluid

SPE Asia-Pacific Conference, 1991
Abstract 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, Azmi Kamis, Mohammad Abdullah   +2 more
openaire   +1 more source

Dynamic Barite Sag in Oil Based Drilling Fluids

Mineral Processing and Extractive Metallurgy Review, 2000
Abstract 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
openaire   +1 more source

Wettability Alteration Induced by Oil-Based Drilling Fluid

Proceedings of SPE Formation Damage Control Symposium, 1988
ABSTRACT 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
openaire   +1 more source

Sag of Weight Materials in Oil Based Drilling Fluids

Proceedings of IADC/SPE Asia Pacific Drilling Technology, 2002
Abstract To be able to keep a well under control during drilling it is important to have the weight material suspended during the whole operation. Especially in oil based, or synthetic based drilling fluids, controlling sag is difficult.
openaire   +1 more source

Drilling and Gravel Packing with an Oil Base Fluid System

Journal of Petroleum Technology, 1969
Formation damage usually is attributable to fluid systems that contain clay or significant amounts of water. Field experience, as well as laboratory studies, indicates that this damage can be avoided through the use of an oil-asphalt fluid system for drilling, completing, and gravel packing. Introduction
Norbert E. Methven, Jerome G. Kemick
openaire   +1 more source

Environmentally Safe Oil-Based Fluids for Drilling Activities

Proceedings of SPE/EPA Exploration and Production Environmental Conference, 1999
Abstract 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, N. León, M. Esclapés, I. Galindo, A. Martínez, J. Bruzual, I. Siegert   +6 more
openaire   +1 more source

The Effect of Oxidation on Viscosity of Oil-Based Drilling Fluids

Journal of Canadian Petroleum Technology, 2006
Abstract 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, S.A. Mehta, R.G. Moore, M.G. Ursenbach   +3 more
openaire   +1 more source

Monitoring of Atmospheres Associated With Oil-Based Drilling Fluids

Proceedings of SPE Health, Safety and Environment in Oil and Gas Exploration and Production Conference, 1994
Abstract In the latest years there has been a growing concern about the environmental aspects of the oil & gas industry activities. This awareness has been expressed not only by the public and the authorities but also by the industry itself.
openaire   +1 more source