... Abstract Knowledge of swelling properties of shale-oil formations as well as the effects of various drilling fluids, including both water-based and oil-based muds (OBMs), which are of critical importance to wellbore-stability problems, requires a better understanding of shale-oil properties...

... society of petroleum engineers environmental performance centrifuge complex reservoir drilling fluid deployment cost benefit market access oil-based mud environmental law waste management non-aqueous fluid environmental drilling technology international association of drilling contractors...

... include the following: Mud additives can substantially enhance ROPs in high-pressure conditions and may play a larger role than bit design features. A 16-ppg cesium formate brine increased ROPs 100% as compared to 16-ppg oil-based mud in Carthage marble and Mancos shale. The cesium formate improved...

... a better way to address this problem in the same way it has been successfully demonstrated to work using water-based fluids (WBM). To check the performance of the MFC method while using oil-based mud (OBM), a series of full-scale tests were conducted at Louisiana State University PERTT Laboratory using...

... and materials North Sea oil-based mud application Completion Fluid drilling fluid property Upstream Oil & Gas formation damage productivity reservoir Introduction The objective of the drilling and completion process is to safely deliver high quality wells that are optimized in terms...

... enhancer application oil-based mud backup cutter drilling fluids and materials drilling fluid selection and formulation water-based mud polyglycol drilling fluid chemistry penetration rate upstream oil & gas water-based drilling fluid pessier spe iadc drilling conference water-based...

... muds, and a limited range of conductive oil-based muds (OBMs). Nevertheless, conventional resistivity measurements can still be used in wells drilled with OBM. A case study is described of a highly deviated Gulf Coast well drilled with synthetic OBM that penetrated a severely depleted reservoir. Based...

... the tight gas sands which characterise the Anglia field were widely thought to have suffered permeability damage when drilled with oil-based muds; lubricity the long well-paths through the highly abrasive reservoir together with the requirement for slide drilling when steering required a highly...

... property stickance upstream oil & gas stickance tester oil-based mud fluid loss Introduction Stuck pipe is a major non-productive cost to the drilling industry. A survey presented by a major drilling contractor in 1992 ( 1 ) estimated that over a 15 month period, 36% of all reported...

... to formulate and maintain, and is non-hazardous and environmentally safe. These results have corroborated the laboratory testing which had shown that the fluid stabilizes shales by the same mechanism as does oil-based muds. The drilling fluid, which is based on methylglucoside (MEG), thus has the potential...

... circulation rate experiment detection parameter well control stand pipe pressure annular pressure drilling drilling operation pit gain return flow alarm level detector influx upstream oil & gas sensitivity iadcispe 23934 oil-based mud water-based mud return flow signal obm...

... property annular channel reservoir pressure drop oil-based mud procedure mud compressibility drilling fluid chemistry drilling fluids and materials drilling fluid management & disposal viscosity flow curve abnormal pressure reservoir compressibility SPE/IADC SPE/IADC 21919 Hydrodynamics...

... formulation momentum equation spe 19975 drilling mud drilling fluid chemistry computer model oil-based mud louisiana state university drilling fluid property IADC/SPE IADC/SPE 19975 A Computer Model for Kicks in Water- and Oil-Based Muds D.B. White and I.C. Walton, Schlumberger Cambridge Research...

...IADC/SPE IADC/SPE 19974 Analysis of Gas Influxes in Oil-Based Muds in the Gullfaks Field R. Rommetveit and T.L. Olsen, Rogaland Research lnst., and J.O. S{jrheim, Statoil A/S SPE Members Copyright 1990, IADC/SPE Drilling Conference. This paper was prepared for presentation at the 1990 IADC/SPE...

... riser drilling contractor oil-based mud well control influx oil mud annular pressure drilling valve upstream oil & gas overboard arrangement separator mud pit room procedure mud gas separator drilling fluids and materials shaker room spe iadc 18705 Abstract While...

... encountered in deep-hot holes and, more recently, to stabilize boreholes with thick intervals of reactive clay formations. However, oil-based mud product development was slowing down until the introduction of low toxicity base oils in the late seventies created a need for new investigations. This innovation...

... Abstract A computer simulation study of blowouts was made using a program written earlier. This study shows the predicted effects of various sized kicks on a given wellbore configuration and studies the major variables affecting kick severity in both water- and oil-based muds. The variables...