... in drilling fluids can lead to potential drilling impediments including; loss of wellbore control, lost circulation, stuck pipe and high torque. The presence of sag has relatively often been the cause for gas kicks and oil-based drilling fluids are known to be more vulnerable for sag than water-based drilling...

... storage modulus rheological property organoclay drilling fluid selection and formulation Upstream Oil & Gas viscosity stability drilling fluid chemistry drilling fluid formulation viscosifier layered material organic functionality organic-inorganic hybrid oil-based drilling fluid high...

... Abstract Cuttings transport has been a topic of research for many years. It has been observed that drilling fluids with similar properties according to the API standard can have significantly different behaviour with respect to the efficiency of cuttings transport. Oil based drilling fluids...

.... This work aims to provide a methodology for predicting the gas loading capability of oil-based drilling fluids, such that precautions for early gas influx detection can be made also for HPHT-drilling with oil-based drilling fluids. In principle, the bubble-point curve; i.e. the transition from single...

... Abstract Removing oil-based drilling fluid residue is crucial to developing an excellent cement bond between casing and formation. A good cement bond leads to proper zonal isolation, improved casing integrity, and reduces annular gas migration. The development of an effective displacement...

... drilling fluid property Upstream Oil & Gas drilling data drilling fluid drilling operation PWD tool oil-based drilling fluid drilling fluid selection and formulation drilling fluid formulation information software spe iadc 119212 real time system drilling fluids and materials drilling...

.... This paper discusses a unique oil-based drilling fluid system weighted with treated micronized barite slurry (TMBS) that has more recently been developed and used successfully in the Eldfisk field of the Greater Ekofisk area, Norway. The drilling fluid system provides low viscosity and a relatively low flat...

... Abstract Hole stability issues and the need to reduced drillpipe torque have made oil-based drilling fluids the systems of choice for highly deviated or horizontal reservoir sections offshore Norway. However, the tendency of barite sag in non-aqueous drilling fluids has led to plugging of sand...

... the large-diameter hole interval that produced the highest volumes of cuttings. mud system oil-based drilling fluid drilling fluids and materials drill pipe simulation demonstrate value execution drilling fluid property drilling fluid chemistry iadc spe 74545 hole interval upstream oil...

... to replace oil-based drilling fluids in many operational areas. The use of this drilling fluid could reduce or eliminate costly disposal of oil contaminated drilled cuttings, minimize health and safety concerns, and minimize environmental effects. Introduction Oil-based drilling fluids are used routinely...

... choke drilling fluid chemistry gas solubility oil-based fluid annular flow rate drilling fluid property iadc spe 19972 oil-based drilling fluid ABSTRACT The high solubility of natural gas in oil-based drilling fluids can mask the true nature of a gas kick. The sudden evolution of gas near...

... Abstract Operator-requirements for cost effective technical solutions to borehole stability problems have historically been the impetus for new product and mud system development by the industry. Oil-based drilling fluids have long been recognized as a sound technical answer to problems...